Patent application number | Description | Published |
20080205537 | Method For Selecting Optimal Beam And Apparatus For Receiving Digital Broadcasting Signal Using The Same - There are provided a method for selecting an optimal beam to improve digital broadcasting receiving performance, and a digital broadcasting receiving apparatus using the same. The method includes the steps of: a) calculating a mainpath Signal to Multipath signal and Noise Ratio (SMNR) based on a channel impulse response for a plurality of beams which are formed according to steering directions from output signals of antennas, wherein the output signal of each antenna has different phase shift according to location of antenna element; b) selecting a predetermined number of beams having a high SMNR value by comparing the calculated SMNR value for respective beam; c) calculating a mainpath Signal to Dominant Multipath signal Ratio (SDMR) based on a channel impulse response corresponding to the selected beam; and d) selecting a beam output signal having the biggest SDMR value by comparing SDMR values calculated in selecting a predetermined number of beams. | 08-28-2008 |
20080317124 | MULTI-VIEW VIDEO CODING SYSTEM, DECODING SYSTEM, BITSTREAM EXTRACTION SYSTEM FOR DECODING BASE VIEW AND SUPPORTING VIEW RANDOM ACCESS - A multi-view video coding (MVC) system, a decoding system, and a bitstream extraction system are provided for decoding a base view and supporting a view random access. The MVC system includes: a coding unit that codes the video signal to a base view and a multi-view; and a base view identifier adding unit that adds a base view identifier of the base view to a parameter set. | 12-25-2008 |
20090016218 | METHOD OF CONTROLLING DOWNSTREAM TRAFFIC FLOW IN CABLE NETWORK HEADEND - Provided is a method of controlling the flow of downstream traffic in a cable network headend. The method includes the steps of: establishing a session with the modulator; transferring traffic to the modulator over the session; and receiving a buffer-status reporting message reporting the status of a receive buffer from the modulator while transferring the traffic. The method reports buffer-status information of an Edge-Quadrature Amplitude Modulator (E-QAM) to a traffic source, thereby enabling control of the transfer rate of traffic transferred from the traffic source to the E-QAM and preventing overflow/underflow of a receive buffer, packet loss and deterioration of channel use. | 01-15-2009 |
20090103563 | PACKET TRANSMITTING METHOD AND DEVICE - A packet transmission device of a physical layer receives a plurality of packets from a media access control layer that is an upper layer of the physical layer, and detects a packet including a sync message from the packets. The packet transmission device receives first time information for synchronization from the media access control layer, inserts first time information into the sync message, and transmits packets at a predetermined data rate. | 04-23-2009 |
20090125959 | METHOD AND APPARATUS OF CABLE MODEM INITIALIZATION USING QUEUE-DEPTH-BASED BAND REQUEST FRAME IN HFC NETWORKS - A cable modem initialization method and apparatus using a queue-depth-based band request frame in a Hybrid Fiber Coax (HFC) network relates to a method and apparatus of requesting a Cable Modem Transmission System (CMTS) for band allocation so that a cable modem supporting a plurality of transceiving channels may transmit upstream data in an HFC network. A method of transmitting the queue-depth-based band request frame that requests the band allocation by a byte length of a transmission buffer when the cable modem performs an initialization process is provided. | 05-14-2009 |
20090125966 | DIGITAL CABLE BROADCASTING RECEIVER INCLUDING SECURITY MODULE AND METHOD FOR AUTHENTICATING THE SAME - A digital cable broadcasting receiver and a method of authenticating the digital cable broadcasting receiver, the digital cable broadcasting receiver includes: a security module unit to perform a device authentication process using two-way communication with a Head End (HE) system, and to transmit authentication verification information generated by the device authentication process to a receiver central processing unit (CPU); a demodulation unit to demodulate a broadcasting signal received from a tuner based on the authentication verification information, and to extract transport stream data; the receiver CPU to control power of the demodulation unit based on the authentication verification information; and a decoding unit to restore the transport stream data into image data. | 05-14-2009 |
20090129450 | Apparatus and method for corresponding frequency synchronization in on-channel repeater - Provided is a frequency synchronizing apparatus and method that can synchronize frequencies between receiving signals and transmitting signals by extracting a carrier error and sampling timing error information in a synchronization process of the receiving signal from a main transmitter or another repeater and reflecting them in the transmitting signal in an on-channel repeater. The apparatus includes a carrier recovery means for compensating a carrier frequency error of a receiving signal; a timing recovery means for compensating a sampling timing error of the receiving signal; a carrier error reflecting means for reflecting the carrier frequency error extracted from the carrier recovery means to a transmitting signal; and a timing error reflecting means for reflecting the sampling timing error extracted from the timing recovery means to the transmitting signal. The present invention is used to form an on-channel repeating network in any transmission system including a digital television broadcasting system. | 05-21-2009 |
20090135850 | METHOD AND APPARATUS OF TRANSMITTING RESOURCE-REQUEST FOR EFFICIENTLY USING SERVICE IDENTIFIER (SID) RESOURCE IN CABLE MODEM SYSTEM SUPPORTING UPSTREAM CHANNEL-BONDING - A method and apparatus of transmitting a resource-request for efficiently using a Service Identifier (SID) resource in a Cable Modem (CM) system supporting upstream channel-bonding relates a method of transmitting an upstream packet in the CM system for performing transmission using a plurality of upstream channels. | 05-28-2009 |
20090138720 | METHOD AND APPARATUS FOR DETECTING MOVEMENT OF DOWNLOADABLE CONDITIONAL ACCESS SYSTEM HOST IN DCAS NETWORK - A method of operating a Secure Micro (SM) of a host in a Conditional Access (CA) system is provided. The method includes: receiving, by the SM, a SecurityAnnounce message including a certificate of an AP server connected with a host; determining, by the SM, whether a public key stored in a memory in advance exists, and setting a flag as a first state when the public key stored in advance exists; verifying, by the SM, a digital signature with respect to the SecurityAnnounce message using the public key stored in advance; and acquiring, by the SM, another public key of the AP server by parsing the certificate and setting the flag as a second state based on whether the flag corresponds to the first state when the SM is unable to verify the digital signature. | 05-28-2009 |
20090138957 | METHOD AND APPARATUS OF MANAGING ENTITLEMENT MANAGEMENT MESSAGE FOR SUPPORTING MOBILITY OF DCAS HOST - A method of supporting a mobility of a Downloadable Conditional Access System (DCAS) host is provided. The method includes: by the second authentication proxy server: performing mutual authentication with a secure micro of the host to generate a session key; requesting an integrated personalization system to download a secure micro client to the host, wherein the secure micro client is encoded using the session key; and transmitting, to a DPS, mapping information between the second authentication proxy server and the secure micro of the host, wherein, in response to receiving the mapping information, the DPS instructs a CAS server to transmit an entitlement management message to the network of the second authentication proxy server without transmitting the entitlement management message to the network of the first authentication proxy server. | 05-28-2009 |
20090141655 | SYSTEM AND METHOD FOR MONITORING HEAD END CABLE MODEM IN CABLE NETWORK - Disclosed are a system and method for monitoring a headend cable modem on a digital cable network, which may monitor a headend cable modem using a configuration management message capable of controlling the headend cable modem. The system includes a message header unit for monitoring the headend cable modem by exchanging a configuration management message including configuration information for controlling channel boding of the headend cable modem and state information of the configuration information with the headend cable modem; and a message varying unit including the configuration information corresponding to the message type information and the state information. | 06-04-2009 |
20090141739 | METHOD AND APPARATUS FOR PROCESSING BANDWIDTH-ALLOCATION INFORMATION IN CABLE MODEM WITH MULTIPLE TRANSMITTING AND RECEIVING CHANNELS - A method and apparatus for processing bandwidth-allocation information in a cable modem (CM) with multiple transmitting and receiving channels is provided. A method of processing bandwidth-allocation information in a CM with multiple transmitting and receiving channels, the method including: receiving, by a Mini-slot Allocation Packet (MAP) pre-processor, MAP data from a Media Access Control (MAC) Management Message (MMM) processor, reconstructing the MAP data into an Information Element (IE), and sorting bandwidth-allocation IEs between channels according to a time sequence; reporting, to an upstream scheduler, whether upstream data is generated, and returning, by the upstream scheduler, the bandwidth-allocation information for upstream data transmission of the IE sorted by the MAP pre-processor; and performing, by a back-off controller, a back-off function and returning contention-based resource-request opportunity information when the back-off controller receives a back-off driving signal from the upstream scheduler. | 06-04-2009 |
20090141784 | CABLE MODEM AND DATA RECEIVING METHOD THEREOF - Disclosed are a cable modem and a data receiving method thereof. The cable modem includes a downlink channel retrieval processing unit to retrieve a downlink channel, receive an entire channel information message through the retrieved downlink channel, and receive a broadcasting supplementary data message when the entire information message is valid; a channel information processing unit to receive broadcasting supplementary data using the broadcasting supplementary data message; an uplink channel retrieval processing unit to retrieve an uplink channel using the entire channel information message; and a channel information managing unit to store and manage main data receiving channels capable of receiving the entire channel information message and the broadcasting supplementary data. | 06-04-2009 |
20090141833 | MULTI-CHANNEL TUNING RECEIVER AND MULTI-CHANNEL TUNING METHOD THEREOF - Provided are a multi-channel tuning receiver, including: a broadband radio frequency (RF) tuner to receive a broadband signal, divide the broadband signal into a plurality of signals, tune the divided signals, combine the tuned signals into a single signal, and output the combined single signal; an analog-to-digital (A/D) converter to convert the combined single signal to digital signal; a channelizer to extract only a bonded channel from the digital signal; and a plurality of demodulators to demodulate the bonded channel, and a multi-channel tuning method thereof. | 06-04-2009 |
20090141901 | TERMINAL AND METHOD OF INCLUDING PLURALITY OF CONDITIONAL ACCESS APPLICATIONS IN BROADCASTING SYSTEM - A method of selectively using a CA application of a terminal, the method including: searching a CA application table when a service of fee-based contents is requested, and determining whether a corresponding CA application is installed; and extracting a key required for descrambling a broadcasting signal using the CA application, when the CA application is installed based on a result of the determining. | 06-04-2009 |
20090144539 | HEADEND SYSTEM FOR DOWNLOADABLE CONDITIONAL ACCESS SERVICE AND METHOD OF OPERATING THE SAME - A method of operating a headend system for a downloadable conditional access service, the method including: receiving, by an Authentication Proxy (AP) server, basic authentication information from a Downloadable Conditional Access System (DCAS) host, the basic authentication information being required to authenticate the DCAS host; transmitting, by the AP server, the basic authentication information to an external trusted authority device which authenticates the DCAS host; generating, by the AP server, a session key for encrypting/decrypting a secure micro client using a session key sharing factor; obtaining, by the AP server, download-related information of the secure micro client from a DCAS Provisioning Server (DPS); and commanding, by the AP server, an Integrated Personalization System (IPS) server to download the secure micro client to the DCAS host based on the download-related information, the secure micro client being encrypted by the session key. | 06-04-2009 |
20090144541 | METHOD AND APPARATUS OF MUTUAL AUTHENTICATION AND KEY DISTRIBUTION FOR DOWNLOADABLE CONDITIONAL ACCESS SYSTEM IN DIGITAL CABLE BROADCASTING NETWORK - A method and apparatus of X.509 certificate-based mutual authentication and key distribution for a Downloadable Conditional Access System (DCAS) in a digital cable broadcasting network is provided for composing a software-based secure DCAS in various Conditional Access Systems (CASs) based on an embodiment form of Conditional Access (CA) application for CA of digital cable broadcasting. | 06-04-2009 |
20090144544 | CABLE NETWORK SYSTEM AND METHOD FOR CONTROLLING SECURITY IN CABLE NETWORK ENCRYPTED DYNAMIC MULTICAST SESSION - A security control method in a cable network dynamic multicast session, and more particularly, a method of controlling forward secrecy and backward secrecy in a Data Over Cable Service Interface Specifications (DOCSIS) 3.0 network dynamic multicast session is provided. A security control method in a cable network dynamic multicast session, includes: maintaining a multicast group that is allocated with a first Downstream Service Identifier (DSID) and a first Security Association Identifier (SAID) and that is joined by a first cable modem and a second cable modem; receiving a LeaveMulticastSession message from the second cable modem; exchanging, corresponding to the LeaveMulticastSession message, a Dynamic Bonding Change (DBC) message for changing a multicast parameter with the second cable modem; and updating a first Traffic Encryption Key (TEK) corresponding to the first DSID with a second TEK. | 06-04-2009 |
20090144766 | METHOD AND APPARATUS FOR MULTI-STREAM PROCESSING OF SET TOP BOX IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A multi-stream processing apparatus of a set top box in a Downloadable Conditional Access System (DCAS), the apparatus including: a cable modem (CM) to allocate at least one communication channel with respect to a headend of a broadcasting company connected with a cable network; a demodulator to receive broadcasting information from the cable network using the at least one allocated communication channel and to demodulate the received broadcasting information; a security module to descramble the demodulated broadcasting information using an application downloaded from the headend of the broadcasting company; a decoder to restore the descrambled broadcasting information into an Audio/Video (A/V) signal and to transmit the A/V signal to a connected apparatus; and a software module to control the CM, the security module, the demodulator, and the decoder, and to perform routing of information. | 06-04-2009 |
20090147681 | METHOD AND APPARATUS OF DOWNSTREAM SERVICE FLOW CONTROL IN HFC NETWORKS - A method and apparatus of controlling a downstream service flow is provided. A method of controlling a downstream service flow, the method including: receiving a control request with respect to a service flow; generating classifier information for identifying a Quality of Service (QoS) classification standard of the service flow for which a generation request is performed, and registering the generated classifier information in a table when the control request is the generation request for the service flow; registering a pattern mask corresponding to the classifier information in the table; and composing the table for searching for downstream service flow information of a downstream input packet using the classifier information and the pattern mask. | 06-11-2009 |
20090147781 | METHOD AND APPARATUS OF MULTICAST SERVICE FLOW PROCESSING FOR HEADEND CABLE MODEM - A method and apparatus of processing a multicast service flow for a headend cable modem is provided. | 06-11-2009 |
20090147788 | METHOD AND APPARATUS OF DOWNSTREAM SERVICE FLOWS CLASSIFICATION FOR HEADEND CABLE MODEM - A method and apparatus of classifying downstream service flows for a cable modem is provided. A method of classifying downstream service flows, the method including: classifying a service flow based on a Quality of Service (QoS) using a destination address of an inputted packet; composing an internal header including corresponding service flow information based on the classifying of the service flow; and adding the internal header to the inputted packet. | 06-11-2009 |
20090150552 | METHOD AND APPARATUS FOR MANAGEMENT AND TRANSMISSION OF CLASSIFIED CONDITIONAL ACCESS APPLICATION TO PROVIDE DOWNLOADABLE CONDITIONAL ACCESS SYSTEM SERVICE - A method and apparatus for management and transmission of a classified conditional access application to provide Downloadable Conditional Access System (DCAS) service according to disclosed embodiments is an effective managing method according to a type of a conditional access module in a software version in the DCAS. In particular, it relates to a method and apparatus which can continuously provide Pay per View (PPV) service during movement in a DCAS service operator (SO) network, such as maintaining independence of CAS SO in DCAS, provide adaptability to adapt to a variety of policies of the SO, and install an optimum application in a terminal. | 06-11-2009 |
20090150669 | METHOD AND APPARATUS FOR PROVIDING DOWNLOADABLE CONDITIONAL ACCESS SERVICE USING DISTRIBUTION KEY - An apparatus and a method for providing a downloadable conditional access service using a distribution key are provided. With regard to the apparatus for providing the downloadable conditional access service using the distribution key, a subscriber authorization system transmits a target entitlement management massage being encoded with a target distribution key to a host, and the host decodes the encoded target entitlement management message being encoded with the target distribution key included in a target secure micro client. | 06-11-2009 |
20090150672 | METHOD AND APPARATUS FOR MUTUAL AUTHENTICATION IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - Disclosed is a mutual authentication method and apparatus in a CAS including a headend system and DCAS host. In particular, example embodiments relate to a mutual authentication method and apparatus in DCAS, wherein the mutual authentication is performed between an authentication server of the headend system and an SM of a DCAS host, and then CAS software is downloaded to the SM. According to the example embodiments, there is provided a mutual authentication protocol between the authentication server of the headend and the SM of the DCAS host in a cable network, and also provided a mutual authentication method and apparatus in the DCAS where a substantial authentication based on a hardware, such as a smart card or a cable card, is not needed. | 06-11-2009 |
20090150953 | METHOD OF SETTING AND CHANGING RECEIVE CHANNEL SET OF CABLE MODEM - A method of effectively setting and changing a Receive Channel Set (RCS) of a cable modem (CM) is provided. | 06-11-2009 |
20090150954 | SERVER AND METHOD FOR CONTROLLING CUSTOMER PREMISES CABLE MODEM BASED ON CONFIGURATION INFORMATION - Disclosed are a server and method for controlling a customer premises cable modem based on configuration information. The configuration information control server includes a basic configuration information managing module to generate basic configuration information included in the configuration information for controlling the customer premises cable modem, and transmit the generated basic configuration information to the customer premises cable modem, a supplementary configuration information managing module to generate supplementary configuration information included in the configuration information, and transmit the generated supplementary configuration information to the customer premises cable modem, and a control module to determine whether either the basic configuration information or the supplementary configuration information is required to be transmitted to the customer premises cable modem. | 06-11-2009 |
20090150955 | APPARATUS AND METHOD FOR SWITCH OPERATION OF DOWNSTREAM TERMINAL PLATFORM FOR IP DATA TRANSMISSION USING LEGACY TRANSMISSION SYSTEM IN HFC NETWORK - A method and apparatus for a switch operation of a downstream terminal platform for Internet Protocol (IP) data transmission using a legacy transmission system in a Hybrid Fiber Coax (HFC) network is provided. The downstream terminal platform includes: a Radio Frequency (RF) transmitter to distribute and combine a signal transceived by an HFC network; a broadband downstream receiver to process a broadband signal received by the RF transmitter; a cable modem (CM) to process data received or transmitted by the RF transmitter; an IP layer switch to transmit data to a corresponding Customer Premises Equipment (CPE), the data being received from the broadband downstream receiver to the CPE, or to enable user data received from the CPE to be transmitted to a headend using the CM; and a subscriber controller to control the downstream terminal platform. | 06-11-2009 |
20090150974 | DIGITAL CABLE SYSTEM AND METHOD FOR PROTECTION OF SECURE MICRO PROGRAM - Provided is a digital cable system and method for protecting a secure micro (SM) client, and more particularly, a digital cable system and method for protecting an SM program that can improve the security of an SM program through authentication of a host and integrity verification of the SM program. A method of protecting an SM program includes: receiving host authentication information associated with a host from a trusted authority; verifying validity of the secure micro program based on the host authentication information; and sending, to an authentication proxy, a HostStateInformation message that includes host state information associated with validity verification information of the SM program. | 06-11-2009 |
20090154498 | METHOD AND APPARATUS FOR REASSEMBLING DOCSIS MAC FRAME IN CABLE MODEM INCLUDING PLURAL RECEIVING CHANNELS - A Data Over Cable Service Interface Specifications (DOCSIS) frame reassembling apparatus and method in a cable modem including a plurality of receiving channels is provided. A method of controlling reassembling of a Media Access Control (MAC) frame, the method including: receiving a signal and outputting a packet signal through demodulation and error correction; receiving the outputted signal and controlling a specific compression format standard header and a point field; receiving packet data and a buffer write enable signal, and writing data in a MAC frame reassembling buffer; storing the data written in the MAC frame reassembling buffer; and reading the stored data from the MAC frame reassembling buffer in response to a received buffer read enable signal and storing the read data in a MAC frame buffer. | 06-18-2009 |
20090154538 | METHOD OF ALLOCATING UPSTREAM BANDWIDTH - A cable modem termination system receives a bandwidth request message, and collects information on the basis of the bandwidth request message. Then, time bandwidth size information is generated on the basis of the bandwidth request message and the collected information, and a bandwidth allocation message is generated on the basis of the collected information and the time bandwidth size information. Accordingly, a cable modem termination system can effectively receive data transmitted from a cable modem. | 06-18-2009 |
20090154616 | RESIDUAL FREQUENCY OFFSET COMPENSATION APPARATUS USING PHASE SHIFT COMPENSATION SCHEME - A residual frequency offset compensation apparatus is provided. The residual frequency offset compensation apparatus includes: a basic phase offset compensation unit compensating input symbols using a previously stored basic phase offset and generating first symbols; a phase shift calculation unit calculating a phase shift value of each of a predetermined number of the first symbols using first detection symbols and the first symbols, the first detection symbols being generated by detecting the first symbols; a phase shift compensation unit compensating the first symbols based on an average of the phase shift values; and a basic phase offset update unit updating the basic phase offset based on the phase shift values. | 06-18-2009 |
20090156204 | APPARATUS AND METHOD FOR AUTOMATIC ROAMING OF TERMINAL IN DIGITAL CABLE BROADCASTING NETWORK - An automatic roaming apparatus and method of a terminal in a digital cable broadcasting network is provided. The method includes: performing device authentication of the terminal when terminal authentication is requested by the terminal; verifying whether roaming authentication of the terminal having requested the terminal authentication is required; requesting subscriber authentication for a Provisioning Server (PS) in a home domain and receiving the subscriber authentication when the terminal exists in the home domain, when the roaming authentication of the terminal is verified as being required; transmitting a result of the device authentication and the subscriber authentication as a response to the terminal; and instructing an Integrated Personalization Server (IPS) to download a Conditional Access (CA) application to the terminal. | 06-18-2009 |
20090158372 | METHOD AND APPARATUS FOR PROVIDING BROADCAST SERVICE INFORMATION IN CABLE NETWORK - Disclosed are a method and apparatus for providing broadcast service information in a cable network. A data transmitting method of the broadcast service information providing apparatus includes receiving IPTV broadcast contents, configuring broadcast service information on the IPTV broadcast contents, assigning a virtual channel to the broadcast service information; and transmitting, to a terminal, the broadcast service information to which the virtual channel is assigned. A data receiving method of a terminal includes receiving broadcast service information to which a virtual channel is assigned, displaying configuration information of the virtual channel, selecting the virtual channel, and decoding the broadcast service information assigned to the selected virtual channel to display the decoded information. | 06-18-2009 |
20090158376 | METHOD AND APPARATUS OF BUILDING IP-BASED VIDEO SERVICE SYSTEM IN HYBRID FIBER COAX NETWORK - An apparatus and method of building an Internet Protocol (IP)-based video service system in a Hybrid Fiber Coax (HFC) network is provided. An apparatus for building an IP-based video service providing system, the apparatus including: an IP decapsulation unit to delete a header in a video signal in a packet form transmitted by an IP-based video server, and to subsequently transmit the video signal to a headend; the headend to encapsulate the video signal received by the IP decapsulation unit into a Media Access Control (MAC) header, and to transmit the encapsulated video signal in the packet form; and an IP protocol encapsulation unit to perform IP encapsulation of the video signal received from the headend. | 06-18-2009 |
20090158395 | METHOD AND APPARATUS FOR DETECTING DOWNLOADABLE CONDITIONAL ACCESS SYSTEM HOST WITH DUPLICATED SECURE MICRO - A method where a Downloadable Conditional Access System Provisioning Server (DPS) detects a duplicated secure micro is provided. A method of detecting a duplicated secure micro, the method including: generating authentication time difference information associated with a value of a difference between a time when a host is finally authenticated in a first address and a time when the host is authenticated in a second address; comparing the authentication time difference information with a first reference value and a second reference value, the second reference value being less than the first reference value; and determining whether the secure micro is duplicated based on a result of the comparing. | 06-18-2009 |
20090158401 | DOWNLOADABLE CONDITIONAL ACCESS SYSTEM AND CONTROLLING METHOD FOR THE SAME - A method and apparatus of supporting a fee-based broadcasting service in a Downloadable Conditional Access System (DCAS) is provided. A control method of a DCAS, the method including: receiving a Conditional Access (CA) image file from a Conditional Access System (CAS) server and receiving Integrated Personalization Server (IPS) access information from an IPS; providing an Authentication Proxy (AP) with information about the received CA image file; controlling the AP to provide a terminal with access information to the IPS and image installation information when the terminal joins a fee-based service based on verifying device information of the terminal; and controlling the IPS to enable the terminal to receive a CA image code of the terminal based on the access information and the image installation information. | 06-18-2009 |
20090201997 | DIGITAL TELEVISION TRANSMISSION AND RECEIVING APPARATUS AND METHOD USING 1/4 RATE CODED ROBUST DATA - Provided is a Vestigial Side Band Digital Television (DTV) transmitter/receiver based on Advanced Television System Committee A/53. The invention provides DTV transmitter/receiver having a dual stream structure through generation of robust data which has a transmission rate a fourth as fast as that of normal data, and a method thereof. The DTV transmitter includes: input means for receiving digital video data stream including normal and robust data; encoding means for performing ¼ rate coding on the digital video data stream so that one bit can be transmitted through two symbols; and transmitting means for modulating/transmitting output signals of the encoding means. This invention can reduce SNR and satisfy TOV of robust data by performing additional FEC on robust data, transmitting/receiving ¼ rate coded robust data, which are capable of transmitting one-bit data for two symbols, and improving decoding ability of an equalizer and a trellis decoder of a DTV receiver. | 08-13-2009 |
20090209201 | APPARATUS AND METHOD OF ON-CHANNEL REPEATER - Provided are an on-channel repeater and a method thereof. The on-channel repeater can extract reception channel information from signals transmitted from a main transmitter or another repeater, compensate for channel distortion caused on a transmission channel by inversely reflecting the extracted reception channel information to the received signals, and transmit the channel-distortion compensated signals through the same channel as a reception channel, and a method thereof. The on-channel repeater includes: a receiver for receiving RF signals transmitted from outside; a down-converter for down-converting the received RF signals into signals of a desired band; a channel-estimator for estimating an inverse value of a reception channel based on the down-converted signals; an adaptation filter for compensating for channel distortion by using a filter having the inverse value of the estimated reception channel; an up-converter for up-converting the channel distortion-compensated signals into RF signals; and a transmitter for transmitting the up-converted RF signals. | 08-20-2009 |
20090213443 | Apparatus and method for encoding or/and decoding digital hologram - Provided is an apparatus for encoding and/or decoding a digital hologram. The apparatus for encoding a digital hologram includes: a segmentation unit for dividing a digital hologram inputted from an external device into a plurality of blocks; an orthogonal transforming unit for orthogonally transforming each of the divided blocks; a quantization unit for quantizing information of each of the transformed blocks; a scanning unit for scanning each of the quantized blocks to transform the plurality of the quantized blocks to single moving image sequence; and a moving image encoding unit for encoding the single moving image sequence configuring a digital hologram to compress the signal moving image sequence. | 08-27-2009 |
20090220035 | APPARATUS FOR EQUALIZING CHANNEL IN FREQUENCY DOMAIN AND METHOD THEREFOR - Provided is an apparatus for channel equalization in frequency domain, including: a channel estimation unit for estimating a channel on received signal from outside, a channel matched filter for changing channel characteristic of the channel estimated by the channel estimation unit and the received signal to channel characteristic to meet condition required for noncausal filtering, a noncausal filter for changing the channel characteristic changed by the channel matched filter from nonminimum phase channel to minimum phase channel, a reverse channel calculation unit for calculating a reverse of the channel changed by the non-causal filter in frequency domain, and a frequency domain equalization unit for performing channel equalization with respect to the channel changed by the noncausal filter in the frequency domain by using the reverse obtained by the reverse channel calculation unit as coefficients of the frequency domain equalization apparatus. | 09-03-2009 |
20090232255 | QAM SYMBOL SLICING METHOD AND APPARATUS - A method for slicing a symbol in a QAM digital demodulator, includes acquiring a digital integer value by sampling a symbol signal in an in-phase coordinate or a quadrature-phase coordinate; and extracting a symbol bit sequence in the in-phase coordinate or the quadrature-phase coordinate from a whole bit sequence of the digital integer value by using an LSB thereof. Further, a symbol slicer for detecting a QAM symbol, includes digital sampling units, each of which acquires a digital integer value by sampling a symbol signal in an in-phase coordinate or a quadrature-phase coordinate; and a symbol bit sequence extracting unit that extracts a symbol bit sequence in the in-phase coordinate or the quadrature-phase coordinate from a whole bit sequence of the digital integer value by using an LSB thereof. | 09-17-2009 |
20090263029 | METHOD AND APPARATUS FOR ENCODING/DECODING 3D MESH INFORMATION - A method and apparatus for encoding and decoding three-dimensional mesh information are provided. The method and apparatus separately encode/decode order information of elements, such as vertices and faces, of a three-dimensional mesh model (original model) in consideration of a change in an element order during encoding three-dimensional mesh information for the original model. The method for encoding three-dimensional mesh information includes the steps of: encoding the three-dimensional mesh information and outputting an encoded bit-stream; calculating order information of at least one element in an original model contained in the three-dimensional mesh information; encoding the element order information; and generating packets of the encoded bit-stream, wherein the encoded element order information is inserted into the packet. | 10-22-2009 |
20090278844 | METHOD AND APPARATUS FOR ENCODING/DECODING 3D MESH INFORMATION INCLUDING STITCHING INFORMATION - Provided are encoding and decoding stitching information generated when the 3D mesh model that is the non-manifold or non-orientable model is converted into orientable and manifold models upon encoding the 3D mesh information of the 3D mesh model. The method of encoding 3D mesh information includes the steps of: encoding the 3D mesh information to output an encoded bitstream; encoding stitching information of elements contained in the 3D mesh information, the stitching information having a total number of duplicated original elements and, for each of the duplicated original elements, the duplication number, original-element identification information and duplicated-element identification information; and generating a packet of the bitstream, wherein the encoded stitching information is inserted into the packet. | 11-12-2009 |
20100074320 | APPARATUS FOR EQUALIZING DECISION FEEDBACK BASED ON CHANNEL PROPERTIES CHANGE AND METHOD THEREFOR - Provided is a decision feedback equalization apparatus including a channel estimation unit for estimating a channel on received signal based on the received signal and a training sequence; a channel matched filter for maximizing SNR from the channel estimated by the channel estimation unit to change channel characteristic of the received signal; a noncausal filter for approximating the channel changed by the channel matched filter from nonminimum phase channel to minimum phase channel; an equalizer input signal storage unit for storing received symbols passed through the channel matched filter and the noncausal filter; a channel equalization unit for performing a decision feedback equalization through filtering of a signal passed through the channel matched filter and the noncausal filter; a Trellis decoder for detecting symbol from a signal channel-equalized by the channel equalization unit; a mode selection unit for selecting a specific mode; an error signal calculator for comparing an output signal of the mode selected by the mode selection unit with an output signal of the channel equalization unit to calculate an error signal; and a tap coefficient updater for updating tap coefficients to the channel equalization unit by using the error signal from the error signal calculator, an output signal from the storage unit, and an output signal from the Trellis decoder. | 03-25-2010 |
20100088091 | FIXED CODEBOOK SEARCH METHOD THROUGH ITERATION-FREE GLOBAL PULSE REPLACEMENT AND SPEECH CODER USING THE SAME METHOD - Provided are a fixed codebook search method based on iteration-free global pulse replacement in a speech codec, and a Code-Excited Linear-Prediction (CELP)-based speech codec using the method. The fixed codebook search method based on iteration-free global pulse replacement in a speech codec includes the steps of: (a) determining an initial codevector using a pulse-position likelihood vector or a correlation vector; (b) calculating a fixed-codebook search criterion value for the initial codevector; (c) calculating fixed-codebook search criterion values for respective codevectors obtained by replacing a pulse of the initial codevector each time for respective tracks, and determining a pulse position generating the largest fixed-codebook search criterion value as a candidate pulse position for the respective tracks, respectively; (d) calculating fixed-codebook search criterion values for respective codevectors of all combinations obtained by replacing at least one pulse position of the initial codevector with the candidate pulse positions of the respective tracks, and determining the largest value of the fixed-codebook search criterion values; and (e) comparing the fixed-codebook search criterion value for the initial codevector obtained in step (b) with the largest value determined in step (d) to determine an optimum fixed codevector. | 04-08-2010 |
20100125733 | DOWNLOADABLE CONDITIONAL ACCESS SYSTEM, CHANNEL SETTING METHOD AND MESSAGE STRUCTURE FOR 2-WAY COMMUNICATION BETWEEN TERMINAL AND AUTHENTICATION SERVER IN THE DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - Provided are a Downloadable Conditional Access System (DCAS), and a channel setting method and a message format for a 2-way communication between a terminal and an authentication server in the DCAS. The DCAS may include: a verification unit to verify an electronic signature and an integrity with respect to a message received from the authentication server; an extraction unit to extract network access information of the authentication server from the message in which the electronic signature and the integrity are verified; and a channel setting unit to set a communication channel with the authentication server based on the extracted network access information. | 05-20-2010 |
20100128739 | METHOD AND APPARATUS OF SCHEDULING BANDWIDTH IN CABLE NETWORK - Disclosed are a method and apparatus of scheduling a bandwidth in a cable network. The method includes receiving variable information set according to a condition of a network, calculating a packet time slot value in which a delay time gain is maximized using the received variable information; setting an algorithm allocating a bandwidth between channels of the network using the packet time slot value, and operating a Cable Modem Termination System (CMTS) according to the algorithm. | 05-27-2010 |
20100131761 | DOWNLOADABLE CONDITIONAL ACCESS SYSTEM AND METHOD OF SESSION CONTROL FOR SECURED 2-WAY COMMUNICATION BETWEEN AUTHENTICATION SERVER AND HOST DEVICE IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - Disclosed is a downloadable conditional access system (DCAS) including a key request unit to transmit a key request message to an authentication server, an authentication request unit to request authentication from the authentication server based on a key response message received from the authentication server in response to the key request message, and a session establishment unit to establish a session with the authentication server, based on an authentication response message received in response to the authentication request. | 05-27-2010 |
20100141477 | APPARATUS AND METHOD FOR CONTROLLING TRAFFIC LIGHT - A traffic light control apparatus and method is provided. The traffic light control apparatus for controlling an emergency vehicle in a traffic network includes: a traffic network control unit configured to determine overall traffic network control and traffic light control for supporting movement of the emergency vehicle during an emergency and transmit a control signal; a traffic light control unit configured to receive the control signal to control a traffic light; and an emergency vehicle control unit configured to transmits a traffic light control mode cancellation request signal to the controlled traffic light. | 06-10-2010 |
20100141738 | METHOD AND SYSTEM FOR TRANSMITTING/RECEIVING 3-DIMENSIONAL BROADCASTING SERVICE - Provided is a method and system for transmitting/receiving broadcasting service. The method for transmitting a 3-dimensional broadcasting service includes: encoding a reference image and an additional image of the 3-dimensional broadcasting service to generate a reference image stream and an additional image stream; receiving a service map table defining the 3-dimensional broadcasting service; and transmitting the reference image stream, the additional image stream and the service map table in real time. | 06-10-2010 |
20100142481 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL FOR HANDOFF IN BROADCASTING NETWORK - An apparatus for transmitting a signal for handoff in a transmitter of a broadcasting network where a plurality of center frequencies exist includes: a baseband broadcasting signal generation unit configured to generate a baseband broadcasting signal from broadcasting data to be transmitted; a transmitter identification signal sequence generation unit configured to generate a transmitter identification signal of the transmitter; a first transmission unit configured to combine the baseband broadcasting signal and the transmitter identification signal, and up-convert the combined signal to a center frequency of the transmitter; and a second transmission unit configured to modulate the transmitter identification signal, and up-convert the modulated transmitter identification signal to center frequencies of adjacent transmitters. | 06-10-2010 |
20100146116 | METHOD OF CONTROLLING DOWNLOAD LOAD OF SECURE MICRO CLIENT IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A method of controlling a download load of a Secure Micro (SM) client in a Downloadable Conditional Access System (DCAS) is provided. The method of controlling a download load of an SM client including: analyzing version information of SMs and version information of SM clients to control the download load generated in the DCAS, the version information of the SMs and the version information of the SM clients being provided from an Authentication Proxy (AP) server, and the SM clients being installed in the SMs; determining a download policy associated with a download time of a target SM client for the SMs based on a result of the analysis; and providing the AP server with the determined download policy. | 06-10-2010 |
20100146141 | TRANSMISSION METHOD, TRANSMISSION APPARATUS, RECEPTION METHOD, RECEPTION APPARATUS OF DIGITAL BROADCASTING SIGNAL - The present invention relates to a method and apparatus for transmitting digital broadcasting signals and a method and apparatus for receiving digital broadcasting signals that divide a stream into a plurality of layers according to characteristics of the stream, that independently process the layers, and that dynamically allocate frequencies on the basis of the processed signals. A method of transmitting digital broadcasting signals includes dividing a single stream into a plurality of layers according to characteristics of the stream; performing encoding and mapping on each of the layers; and dynamically allocating a frequency to each of the layers on the basis of the number of symbols for each layer. | 06-10-2010 |
20100146276 | METHOD OF RECOVERING AND MANAGING SECURITY-RELATED INFORMATION FOR DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A method of managing security-related information in a Downloadable Conditional Access System (DCAS) is provided. The method of managing security-related information in the DCAS, the method including: receiving a request for storage of identification information and security-related information from a target server, the security-related information being required to be securely maintained; transmitting a recovery key to the target server in preparation for a loss of the security-related information in the target server; receiving a request for recovery of the security-related information from the target server, when the security-related information is lost; encrypting the security-related information of the target server using the recovery key; and transmitting the encrypted security-related information to the target server. | 06-10-2010 |
20100153710 | METHOD OF PREVENTING UNAUTHENTICATED VIEWING USING UNIQUE INFORMATION OF SECURE MICRO - A method of verifying a validity of a Secure Micro (SM) is provided. The method of verifying a validity of an SM, the method including: storing and maintaining a validity verification message used to verify the validity of the SM, the validity verification message being generated by a Trusted Authority (TA) based on unique information of the SM, and the SM and the TA sharing the unique information of the SM; and verifying the validity of the SM using the validity verification message and the unique information shared by the SM, when an SM client is executed. | 06-17-2010 |
20100153711 | DOWNLOADABLE CONDITIONAL ACCESS SYSTEM EFFICIENTLY DETECTING DUPLICATED DCAS HOST - A technology that may efficiently detect a duplicated Downloadable Conditional Access System (DCAS) host in a DCAS is provided. | 06-17-2010 |
20100153725 | TRAFFIC ENCRYPTION KEY UPDATING METHOD USING SYSTEM SYNCHRONIZATION AND APPARATUS USING THE SAME - Provided are a TEK update method using system synchronization, and an apparatus using the same. The method and apparatus according to the present invention periodically update a TEK used for traffic encryption in a DOCSIS system by using system synchronization. As described, the TEK can be updated by using system synchronization without performing a TEK update negotiation process. | 06-17-2010 |
20100154018 | METHOD AND APPARATUS FOR TRANSMITTING PACKET FILTERING INFORMATION - Disclosed are a method and an apparatus of transmitting packet filtering information. A DSG channel information management server included in a digital cable broadcasting transmission headend combines a packet address and information related to the packet address and generates the combined information to be a single file, the packet address being used for filtering packets received by a cable modem contained in a cable broadcasting receptor, for each data type. The generated file is transmitted from a CMTS to the cable modem through a packet having a designated address mutually agreed upon between the headend and the cable modem, the cable modem obtains information for selectively filtering the received packets, from the received file, and constructs a filter. Data selectively filtered through each constructed filter is transmitted to a corresponding process module included in the cable broadcasting receptor that processes broadcasting program information, conditional access information, and the like. | 06-17-2010 |
20100157828 | METHOD FOR CONTROLLING EVENT AND REPORTING STATUS OF CABLE MODEM AND APPARATUS THEREOF - Provided is a method and apparatus for controlling an event of a cable modem and reporting a status of the cable modem, the method including: determining whether to periodically allocate a transmission bandwidth of a CM-STATUS message with respect to an event occurrence of the cable modem; setting an event control encoding that includes information regarding whether to periodically allocate the transmission bandwidth; and generating a MAC Domain Descriptor (MDD) message containing the event control encoding to transmit the generated MDD message. | 06-24-2010 |
20100157920 | APPARATUS AND METHOD OF CHANNEL BANDWIDTH ALLOCATION - Provided is an apparatus for a channel bandwidth allocation, the apparatus including: an information sorting unit to receive bandwidth allocation request information, to sort the received bandwidth allocation request information according to a priority, and to transfer any one of the sorted bandwidth allocation request information to a minislot allocation unit; and a calculation unit to apply a multiplier to a number of bytes, and to transfer, to the minislot allocation unit, the bandwidth allocation request information where a number of requested bytes is calculated, when the bandwidth allocation request information is byte-based bandwidth allocation request information, wherein the minislot allocation unit allocates a minislot based on the bandwidth allocation request information and predetermined setting information. | 06-24-2010 |
20100158036 | METHOD AND APPARATUS OF RECEIVING BURST DATA USING MULTIPLE UPSTREAM CHANNELS BASED ON UPSTREAM BANDWIDTH ALLOCATION INFORMATION IN HFC NETWORK - Provided is a method and apparatus for effectively receiving channel bonded upstream burst data in a Hybrid Fiber Cable (HFC) network. | 06-24-2010 |
20100158086 | CABLE MODEM AND METHOD OF PERFORMING CHANNEL BONDING USING DIGITAL UPCONVERTER - A cable modem is provided. The cable modem may include: a plurality of modulators to generate a plurality of pieces of digital data corresponding to a plurality of independent channels; a plurality of digital upconverters to up-convert a frequency of each of the plurality of pieces of digital data into a predetermined frequency; and a Radio Frequency (RF) processor to channel-bond outputs of the plurality of digital upconverters into at least one channel, and generate an analog output signal, the outputs having the predetermined frequency. | 06-24-2010 |
20100158480 | MULTI-STREAM ENCRYPTION METHOD AND APPARATUS, AND HOST DEVICE FOR MULTI-CHANNEL RECORDING - A multi-stream encryption apparatus and method, and a host device for multi-channel recording of a plurality of fee-based broadcasting services in a Downloadable Conditional Access System (DCAS) are provided. | 06-24-2010 |
20100161966 | MUTUAL AUTHENTICATION APPARATUS AND METHOD IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A mutual authentication method in a Downloadable Conditional Access System (DCAS) is provided. The mutual authentication method may receive authentication-related information about authentication between an authentication unit and a security module (SM) from a Trusted Authority (TA), generate an authentication session key using the authentication-related information, transmit the authentication session key by the authentication unit to the SM through a Cable Modem Termination System (CMTS), and control a Conditional Access System (CAS) software to be downloaded to the SM from the authentication unit, when the authentication is completed by the authentication session key. | 06-24-2010 |
20100161987 | DOWNLOADABLE CONDITIONAL ACCESS SYSTEM SERVICE PROVIDING APPARATUS AND METHOD - Provided is a Downloadable Conditional Access System (DCAS) service providing method where a mutual authentication with respect to a DCAS host and an Authentication Proxy (AP) server is performed, operating environment information and host identification information, which are extracted by the AP server, are transmitted by the AP server to a Personalization Server (PS), image information is selected by referring to the host identification information, the operating environment information, and policy information agreed to by a Conditional Access System (CAS) server and the PS, the image information being transmitted by the PS to a code download server, and the image information is transmitted to the DCAS host, when access information of the image information is transmitted to the DCAS host through the PS and the AP server. | 06-24-2010 |
20100162337 | APPARATUS AND METHOD FOR PROCESSING VIDEO SERVICE FLOW USING DUAL SCHEDULER FOR HEADEND CABLE MODEM IN HFC NETWORK - Provided is an apparatus and method for providing a video service flow using a dual scheduler for a headend cable modem in a Hybrid Fiber Coax (HFC) network. The apparatus may include: a service flow processing unit to determine whether a packet corresponds to a registered video service flow, when the packet is received; and at least one channel transmitter to schedule a packet corresponding to the registered video service flow and a packet not corresponding to the registered video service flow so that a transmission rate of the registered video service flow is guaranteed, and to thereby transmit the packets. | 06-24-2010 |
20100162353 | TERMINAL AUTHENTICATION APPARATUS AND METHOD IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A terminal authentication apparatus and method in a Downloadable Conditional Access System (DCAS) is provided. The terminal authentication method may determine whether terminal authentication information, received from a DCAS terminal, is valid by referring to a database, may transmit DCAS image information and pairing information about the terminal authentication information to a user terminal, when the terminal authentication information is valid, and thereby may enable the DCAS terminal to set the user terminal based on the pairing information. | 06-24-2010 |
20100175096 | TRANSMISSION METHOD, TRANSMISSION APPARATUS, RECEPTION METHOD, RECEPTION APPARATUS OF DIGITAL BROADCASTING SIGNAL AND TRANSMISSION FRAME-FORM THEREOF - The present invention relates to a transmission method, a transmission apparatus, a reception method, and a reception apparatus of a digital broadcasting signal that can add frame header information to a front portion of a transmission frame in a transmission system for digital broadcasting to thereby determine a different transmission mode, modulation level, hierarchical modulation, error correction code, and the like for each temporally different transmission frame, and a transmission frame structure thereof. The transmission frame structure includes a frame header containing multiplexing information of the transmission frame, and a frame body containing data information associated with a service provided by the transmission frame. Also, the frame header may include a frame synchronization signal unit including synchronization signal information for extracting a start position of the transmission frame and a frame information unit including multiplexing information of data contained in the transmission frame. The multiplexing information denotes information associated with a transmission mode, a modulation level, a hierarchical modulation, and an error correction code of the data contained in the transmission frame. | 07-08-2010 |
20100195898 | METHOD AND APPARATUS FOR IMPROVING QUALITY OF DEPTH IMAGE - A method and apparatus for enhancing quality of a depth image are provided. A method for enhancing quality of a depth image includes: receiving a multi-view image including a left image, a right image, and a center image; receiving a current depth image frame and a previous depth image frame of the current depth image frame; setting an intensity difference value corresponding to a specific disparity value of the current depth image frame by using the current depth image frame and the previous depth image frame; setting a disparity value range including the specific disparity value; and setting an intensity difference value corresponding to the disparity value range of the current depth image frame by using the multi-viewpoint image. | 08-05-2010 |
20100201885 | ENCODER OF E-8VSB FORWARD ERROR CORRECTION FOR DIGITAL TELEVISION SYSTEM OF ATSC - Provided is an error correcting encoder and, more particularly, to an error correcting encoder used for an improved transmission method of the Advanced Television System Committee (ATSC), and a method thereof. The error correcting encoder for digital television broadcasting, which is suggested in the present research, includes a robust encoder for encoding a one-bit input into robust encoded data; a pre-coding block for receiving the robust encoded data and performing pre-coding to thereby produce a pre-coded signal; and a trellis encoding block for performing trellis encoding on the robust encoded data and the pre-coded signal. | 08-12-2010 |
20100220720 | DIGITAL BROADCASTING SIGNAL TRANSMITTING METHOD AND DEVICE, RECORDING MEDIUM THEREOF, AND RECEIVING DEVICE THEREOF - In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services. | 09-02-2010 |
20100235626 | APPARATUS AND METHOD FOR MUTUAL AUTHENTICATION IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A mutual authentication apparatus in a Downloadable Conditional Access System (DCAS) includes an announce protocol processor to authenticate SecurityAnnounce information using an Authentication Proxy (AP) and to transmit the authenticated SecurityAnnounce information to a Secure Micro (SM), a keying protocol processor to relay KeyRequest information and KeyResponse information between a Trusted Authority (TA) and the SM in response to the SecurityAnnounce information, a decryption unit to decrypt the KeyResponse information using the SM, an authentication protocol processor to determine whether a first encryption key of the KeyResponse information is identical to a second encryption key generated by the AP, and a download protocol processor to control DownloadInfo to be transmitted from the AP to the SM, the DownloadInfo permitting the SM to download SM Client Image information. | 09-16-2010 |
20100265996 | REPEATER AND METHOD FOR PROCESSING SIGNAL, AND METHOD FOR CONVERTING SYNCHRONOUS FREQUENCY THEREOF - A repeater having different input and output frequencies converts a signal received with the input frequency to a first intermediate frequency signal based on a local oscillating frequency for intermediate frequency conversion, and converts the first intermediate frequency signal to a second intermediate frequency signal by performing digital processing on the first intermediate frequency signal. Then, the repeater generates a first frequency tone signal that corresponds to a difference between the input and output frequencies, and generates a second frequency tone signal from the local oscillating frequency for intermediate frequency conversion and the first frequency tone signal. The repeater up-converts the second intermediate frequency signal to the output frequency based on the second frequency tone signal, and transmits the signal. | 10-21-2010 |
20100266052 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING ENHANCED MEDIA DATA IN DIGITAL MULTIMEDIA BROADCASTING SYSTEM - A method and apparatus for processing enhanced media data in a Digital Multimedia Broadcasting (DMB) system is provided. The apparatus for processing enhanced media data includes: a base layer processing unit configured to multiplex an elementary stream of a base layer and perform channel encoding for the multiplexed elementary stream of the base layer; an enhancement layer processing unit configured to synchronize an elementary stream of an enhancement layer with the elementary stream of the base layer and thereby multiplex the elementary stream of the enhancement layer and process the elementary stream of the enhancement layer to be transmittable via at least one of a plurality of transmission channels; and a synchronizer configured to provide the enhancement layer processing unit with synchronization information that is used for synchronizing the elementary stream of the enhancement layer with the elementary stream of the base layer. | 10-21-2010 |
20100277568 | METHOD AND APPARATUS FOR STEREOSCOPIC DATA PROCESSING BASED ON DIGITAL MULTIMEDIA BROADCASTING - A stereoscopic data processing method and apparatus to provide service of stereoscopic data interoperating with digital multimedia broadcasting (DMB) is provided. The stereoscopic data processing method, including: receiving a transmission stream (TS) including a program map table from an external device; recognizing stereoscopic program information descriptor in the program map table; and recognizing defined bit values in the stereoscopic program information descriptor and processing data. | 11-04-2010 |
20100301931 | RECURSIVE DEMODULATION APPARATUS AND METHOD - A recursive demodulation apparatus is provided. Therecursive demodulation apparatus, including: a segment generation unit dividing data symbols with a residual frequency or phase error into a predetermined number of data symbols, and generating a plurality of segments, each of the plurality of segments including the predetermined number of data symbols; and a phase error correction unit sequentially correcting a phase error of each of the data symbols, included in the each of the plurality of segments, for each segment. | 12-02-2010 |
20100315486 | STEREOSCOPIC VIDEO SERVICE PROVIDING/RECEIVING METHOD AND APPARATUS IN DIGITAL BROADCASTING SYSTEM - Provided is a stereoscopic video service providing method using a stereoscopic video stream including first and second video streams in a digital broadcasting system. The stereoscopic video service providing method includes: generating information on the first video stream and information on the second video stream; inserting an identifier of the information on the second video stream into the information on the first video stream; and transmitting the first video stream and the information on the first video stream and the second video stream and the information on the second video stream through separate transmission channels, respectively. | 12-16-2010 |
20110010739 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING STEREOSCOPIC VIDEO IN DIGITAL BROADCASTING SYSTEM - Provided is a method for transmitting a stereoscopic video in a digital broadcasting system, the stereoscopic video being composed of a left view and a right view. The method includes: generating information indicating that the video is stereoscopic, information about a composition type of the stereoscopic video, and additional information based on the composition type; and transmitting the stereoscopic video and the generated information. The composition type is to compose the stereoscopic video of a single or two encoding streams by using the left view and the right view. In the case of a single stream mode in which the stereoscopic video is composed of the single encoding stream, the additional information includes information about positions of the left and right views. In the case of a dual stream mode in which the stereoscopic video is composed of the two encoding streams, the additional information includes information indicating whether the respective encoding streams are the left view or the right view and information indicating correlation between the respective encoding streams. | 01-13-2011 |
20110050857 | APPARATUS AND METHOD FOR DISPLAYING 3D IMAGE IN 3D IMAGE SYSTEM - Disclosed is an apparatus and a method for displaying 3D images, which do not need to be reversed, so that users can watch the 3D images without modification in a 3D image system. The 3D images display extracts characteristic information regarding a plurality of imaging devices from left and right images taken by the imaging devices, selects an image among the left and right images, determines a reference element in the selected image, determines a selection element corresponding to the reference element in the non-selected image; calculates a disparity value between the left and right images by using the reference element and the selection element, determines whether the left and right images are normal or not by using the disparity value, and corrects the left and right images based on the determination result. | 03-03-2011 |
20110072260 | METHOD AND SYSTEM OF DOWNLOADABLE CONDITIONAL ACCESS USING DISTRIBUTED TRUSTED AUTHORITY - Disclosed is a downloadable conditional access system (DCAS) and an operational method thereof that distributes a part of a function of a Trusted Authority to each multiple system operator (MSO) to enable the MSO server to process authentication with respect to a secure micro (SM) chip and a transport processor (TP) chip, and thus, a normal DCAS service is possible even when there is a problem with a security, and a DCAS host terminal for rental use is effectively operated. | 03-24-2011 |
20110078444 | RE-AUTHENTICATION APPARATUS AND METHOD IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - Provided is a re-authentication apparatus in a Downloadable Conditional Access System (DCAS), the re-authentication apparatus includes: a receiving unit to receive a key request message from a Secure Micro (SM); a determination unit to determine whether to perform re-authentication depending on downloading of SM client image; an identification unit to identify an SM identifier using the key request message, when the re-authentication is performed as a result of the determination; an extraction unit to retrieve previous session information corresponding to the SM identifier and to extract keying information about the previous session information; and an encryption unit to control an encryption key about the SM client image to be reused, the SM client image being encrypted in a previous session based on the previous session information using the keying information. | 03-31-2011 |
20110111694 | ON-CHANNEL REPEATING APPARATUS AND METHOD - An on-channel repeating apparatus and method is provided. The method includes subtracting a replica of a feedback signal from a signal received from a main transmitter or another repeating apparatus; demodulating and equalizing the signal to remove noise, a multipath signal, and the remaining feedback signal from the signal; inserting identification signal having good correlation properties into the signal; modulating the signal; and transmitting the modulated signal. | 05-12-2011 |
20110141364 | METHOD AND APPARATUS FOR RECEPTION AND TRANSMISSION - Disclosed is a reception apparatus including a basic service reception unit to demodulate and channel-decode a signal received through one broadcasting channel among broadcasting channels for a basic service, and to extract a transport stream, an additional service reception unit to demodulate and channel-decode a signal received through a broadcasting channel for an additional service combined with the basic service, and to extract a transport stream, an integrated demultiplexer to respectively demultiplex the transport stream provided for the basic service and the transport stream provided for the additional service in order to extract at least one transport stream, and a source decoder to respectively decode the demultiplexed transport stream provided for the basic service and the demultiplexed transport stream provided for the additional service in order to broadcast at least one of a basic source and an additional source combined with the basic source. | 06-16-2011 |
20110149031 | STEREOSCOPIC IMAGE, MULTI-VIEW IMAGE, AND DEPTH IMAGE ACQUISITION APPARATUS AND CONTROL METHOD THEREOF - Provided is a camera apparatus, including: a camera unit including at least two cameras to acquire a stereoscopic image; a camera control unit to adjust a view angle of the at least two cameras and an interval between the at least two cameras; a depth information obtainment unit to obtain depth information from the stereoscopic image; and an intermediate image generator to generate an intermediate image based on the stereoscopic image and the depth information. | 06-23-2011 |
20110150321 | METHOD AND APPARATUS FOR EDITING DEPTH IMAGE - Provided is a method of editing a depth image, comprising: receiving a selection on a depth image frame to be edited and a color image corresponding to the depth image frame; receiving a selection on an interest object in the color image; extracting boundary information of the interest object; and correcting a depth value of the depth image frame using the boundary information of the interest object. | 06-23-2011 |
20110175985 | METHOD OF GENERATING CONTENTS INFORMATION AND APPARATUS FOR MANAGING CONTENTS USING THE CONTENTS INFORMATION - The present invention relates to a method of generating contents information for managing contents including stereo-scopic contents being two-dimensional contents and three dimensional contents, and an apparatus for managing contents, the method including the steps of, when there is a scene change of contents, adding a second field including information on each of a plurality of scenes corresponding to a plurality of types, respectively, to the contents information. | 07-21-2011 |
20110194030 | DEVICE AND METHOD FOR TRANSMITTING AND RECEIVING BROADCASTING SIGNAL - A broadcasting signal transmitting device transmits a broadcasting signal including a base layer signal and an enhancement layer signal as well as an additional layer signal relating to the broadcasting signal to a broadcasting signal receiving device. The broadcasting signal receiving device selectively provides the enhancement layer signal and the additional layer signal to the user according to the user's service level. Accordingly, various services are differently provided to the user according to the user level. | 08-11-2011 |
20110219415 | METHOD AND DEVICE FOR RECEIVING BROADCASTING PROGRAM - Provided is a broadcasting receiving method and device. The method detects the time of a televised broadcasting program, and provides the broadcasting program to the user from the start thereof. More specifically, the method requests transmission of the broadcasting program before a first time through the second network at the first time of the broadcasting program before a first time through the second network at the first time of the broadcasting program received through the first network, and stores the broadcasting program received through the first network at the first time. The broadcasting program, which was broadcasted before the first time, received through the second network from the first time to the second time is displayed and the stored broadcasting program after the second time is displayed. | 09-08-2011 |
20110228775 | METHOD AND APPARATUS OF MULTICAST SERVICE FLOW PROCESSING FOR HEADEND CABLE MODEM - A method and apparatus of processing a multicast service flow for a headend cable modem is provided. | 09-22-2011 |
20110234769 | APPARATUS AND METHOD FOR DISPLAYING IMAGES IN IMAGE SYSTEM - An apparatus for displaying images in an image system includes: an encoder configured to encode color and depth images of at least one view received from a plurality of imaging devices and generate a reference image by synthesizing the encoded depth image of a current view and the encoded color and depth images before and after the current view based on a predetermined method; a decoder configured to decode a color image of the current view by using the generated reference image and decode the encoded color and depth images of at least one view; and a splitter configured to divide and split, based on each view, the decoded color and depth images of at least one view. | 09-29-2011 |
20110234901 | APPARATUS AND METHOD FOR CONTROLLING INFRASTRUCTURE BASED ON BROADCASTING SIGNALS - An apparatus for transmitting broadcasting content including a control signal in a broadcasting network, the apparatus includes: a modulator configured to modulate broadcasting content by a predetermined modulation method; a control signal generator configured to generate a control signal for remote control of infrastructure; an adder configured to add the control signal to the modulated broadcasting content; and a DTV transmitter configured to convert the added signal to a DTV broadcasting signal and transmit the DTV broadcasting signal. | 09-29-2011 |
20110241743 | APPARATUS AND METHOD FOR SYNCHRONIZING TIMING CLOCK BETWEEN TRANSMISSION SIGNAL AND RECEPTION SIGNAL - Provided are an apparatus and method for synchronizing a timing clock between a transmission signal and a reception signal. The apparatus for synchronizing a timing clock includes a timing restorer configured to restore a timing clock based on a digital input data; and a timing clock synchronizer configured to synchronize the timing clock based on timing information and a timing restoration signal restored in the timing restorer. | 10-06-2011 |
20110242093 | APPARATUS AND METHOD FOR PROVIDING IMAGE DATA IN IMAGE SYSTEM - An apparatus for providing image data in an image system includes: a stereoscopic image generation unit configured to receive image data and depth information data and generate stereoscopic image data; a parallax calculation unit configured to analyze parallax information of a 3D image from the stereoscopic image data, divide the analyzed parallax information step by step, and determine parallax step information; a caption and text generation unit configured to generate a caption and a text by applying the parallax step information and generate position information of the generated caption and text; and an image synthesis unit configured to insert the caption and text into the stereoscopic image data based on the position information of the caption and text and provide 3D image data. | 10-06-2011 |
20110247032 | METHOD AND APPARATUS FOR REMOTELY INSTALLING AND UPDATING DIFFERENT SECURITY CLIENTS FOR BROADCASTING OR COMMUNICATION CHANNELS - A method for installing different security clients for channels in a terminal in a conditional access system includes: searching one or more channels searchable in the terminal; requesting, for respective searched channels, security clients necessary for receiving pay programs to be transmitted through the searched channels, to a broadcasting station which takes charge of the searched channels; and downloading and installing, for respective searched channels, the requested security clients from the broadcasting station. | 10-06-2011 |
20110261883 | MULTI- VIEW VIDEO CODING/DECODING METHOD AND APPARATUS - Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled. | 10-27-2011 |
20120005715 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - Provided is an apparatus and method for transmitting and receiving broadcasting data and supplementary data. The method includes: generating broadcasting data and supplementary data for a plurality of predetermined 3D broadcasting services to be provided to users; multiplexing the generated broadcasting data for broadcasting channels respectively allocated to the plurality of predetermined 3D broadcasting services, and multiplexing the generated supplementary data for one commonly broadcasting channel commonly allocated to the plurality of predetermined 3D broadcasting services; encoding the multiplexed supplementary data corresponding to a conditional access system; and transmitting the encoded supplementary data to the one common broadcasting channel, and transmitting the multiplexed broadcasting data to the allocated broadcasting channels. | 01-05-2012 |
20120033035 | METHOD AND SYSTEM FOR TRANSMITTING/RECEIVING 3-DIMENSIONAL BROADCASTING SERVICE - Provided is a method and system of transmitting and receiving a three-dimensional (3D) broadcasting service, and more particularly, to a method and system for transmitting and receiving a reference image and a 3D auxiliary image for the 3D broadcasting service through a digital broadcasting network in real-time or in non-real time. According to the present invention, a smooth broadcasting service may be provided to terminals receiving a two-dimensional (2D) or 3D broadcast. | 02-09-2012 |
20120044321 | APPARATUS AND METHOD FOR MONITORING BROADCASTING SERVICE IN DIGITAL BROADCASTING SYSTEM - A broadcasting service monitoring apparatus includes: a stream separation unit to extract a partial stream from an inputted 3D stream and separate detailed stream configuration and service-related information and a stream for 3D video service from the 3D stream; a configuration information analysis unit to minutely analyze the separated service-related information and the separated stream for 3D video service; a 2D image decoding unit to decode the separated stream for 3D video service into a predetermined image; an image separation unit to separate one screen of the decoded predetermined image into two screens and generate two images; a 3D image reproduction unit to reproduce the generated two images; a depth information extraction unit to extract depth information for 3D video service from the generated two images; and a 3D information representation unit to represent the analyzed values and the extracted depth information. | 02-23-2012 |
20120044419 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING BROADCAST DATA IN DIGITAL BROADCASTING SYSTEM - Disclosed are a method and an apparatus for transmitting and receiving broadcast data in a digital broadcasting system. The method for transmitting and receiving broadcast data in a digital broadcasting system includes receiving the main data encoded with symbols having a plurality of levels; deciding whether levels of main data symbols encoded with symbols having the plurality of levels belong to a first group; and mapping the main data symbols to extended levels by using modulation values of the additional data if it is decided that the levels of the main data symbols belong to the first group. | 02-23-2012 |
20120062698 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - Disclosed is an apparatus and method for transmitting/receiving reference image data and 3D additional image data in 3D image data so as to provide a 3D image in a digital broadcasting system. In the method, a basic image and a 3D additional image in a 3D image of a 3D broadcasting service is processed in a stereoscopic image format of one of a side-by-side method and a top-down method. The basic image and the 3D additional image processed in the stereoscopic image format are encoded to a basic image stream and a 3D additional image stream. The encoded basic image stream and the encoded 3D additional image stream are multiplexed to a 3D image stream of a single stream using a dual stream method, and the multiplexed 3D image stream is then transmitted. | 03-15-2012 |
20120098928 | STEREOSCOPIC CONTENT SERVICE SYSTEM AND METHOD - The present invention relates to a stereoscopic content service system and method, and more particularly to a stereoscopic content service system and method which defines a Scene Descriptor (SD) including information required for stereoscopic contents, displays the stereoscopic contents based on the information of the defined SD, and thereby may perform a two-dimension (2D)/three-dimension (3D) display conversion through user interaction and display a stereoscopic text based on information about a left and right text and disparity information. | 04-26-2012 |
20120147763 | APPARATUS AND METHOD FOR RECEIVING DATA IN COMMUNICATION SYSTEM - An apparatus for receiving data in a communication system includes: a detection unit configured to calculate power values of a data packet and a ratio of the power values by using a preamble of the data packet in a received signal, and detect the data packet through the calculated ratio of the power values; a control unit configured to calculate a gain compensation value of the detected data packet, and perform an automatic gain control (AGC) on the detected data packet by using the gain compensation value; a compensation unit configured to calculate a DC offset in the received signal, and remove the DC offset from the received signal; and a demodulator configured to demodulate the AGCed data packet. | 06-14-2012 |
20120224623 | METHOD AND APPARATUS FOR ENCODING AND DECODING MULTI-VIEW VIDEO USING IMAGE STITCHING - Provided is a method and apparatus for encoding and decoding multi-view video data. The encoding method includes: decomposing each view image of the multi-view video into an overlapped region and a non-overlapped region, the overlapped region being overlapped with other view image and the non-overlapped region not being overlapped with other view image; generating a stitched image by combining the non-overlapped region of each view image and a middle view image; encoding the stitched image using a first encoding algorithm; and encoding the overlapped region of each view image, using a second encoding algorithm. Further, the decomposing step includes the steps of estimating disparity information for each view image, based on a predetermined view image; and decomposing each view image into said overlapped region and said non-overlapped region using the estimated disparity information. | 09-06-2012 |
20120320168 | METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION IN THE PROVISION OF A PLURALITY OF TRANSPORT INTERACTIVE 3DTV BROADCASTING SERVICES - The present invention relates to a method and apparatus for providing a plurality of transport interactive 3DTV broadcasting services in the provision of higher definition 3D video service and 3D data service, while maintaining the compatibility with the existing digital TV broadcasts or 3DTV services. To this end, an input 3D video is encoded to generate a 3D additional video base stream and a 3D additional video enhanced stream. Engineer information for defining engineers, which includes 3D broadcasting service configuration information, is generated, and then an encoded 2D base video stream, an encoded audio stream, the encoded 3D additional video base stream and the engineer information are multiplexed and transmitted via a base layer. The 3D additional video enhanced stream is multiplexed and transmitted via an enhanced layer. | 12-20-2012 |
20130077698 | ENCODER OF E-8VSB FORWARD ERROR CORRECTION FOR DIGITAL TELEVISION SYSTEM OF ATSC - Provided is an error correcting encoder and, more particularly, to an error correcting encoder used for an improved transmission method of the Advanced Television System Committee (ATSC), and a method thereof. The error correcting encoder for digital television broadcasting, which is suggested in the present research, includes a robust encoder for encoding a one-bit input into robust encoded data; a pre-coding block for receiving the robust encoded data and performing pre-coding to thereby produce a pre-coded signal; and a trellis encoding block for performing trellis encoding on the robust encoded data and the pre-coded signal. | 03-28-2013 |
20130083165 | APPARATUS AND METHOD FOR EXTRACTING TEXTURE IMAGE AND DEPTH IMAGE - Provided are an apparatus and method for extracting a texture image and a depth image. The apparatus of the present invention may project a pattern image on a target object, may capture a scene image on which the target image is reflected from the target object, and may simultaneously extract the texture image and the depth image using the scene image. | 04-04-2013 |
20130129015 | METHOD AND APPARATUS FOR TRANSCEIVING A BROADCAST SIGNAL IN A DIGITAL BROADCAST SYSTEM - The present invention relates to a method and apparatus for transceiving a broadcast signal in a digital broadcast system. The method for transmitting a broadcast signal according to one embodiment of the present invention comprises the following steps: generating a main signal using main data; generating an additional signal, the power of which is lower than that of the main signal, using a plurality of additional data; generating an additional signal frame using the additional signal and a frame header; and generating a broadcast signal using the main signal and an additional signal frame. The frame header is used in selectively extracting the plurality of additional data from the additional signal frame. According to the present invention, additional data can be efficiently transmitted while maintaining compatibility with existing digital broadcasting systems. | 05-23-2013 |
20130195158 | MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSION METHOD IN A DIGITAL VIDEO BROADCASTING SYSTEM AND DEVICE FOR SUPPORTING SAME - Provided is a Multiple Input Multiple Output (MIMO) transmission method in a digital broadcasting system. The method includes generating a plurality of first modulation symbols by modulating first information bits; generating a plurality of second modulation symbols by modulating second information bits; generating a plurality of first pre-coded symbols and a plurality of second pre-coded symbols by pre-coding the plurality of first modulation symbols and the plurality of second modulation symbols; and allocating the plurality of first pre-coded symbols and the plurality of second pre-coded symbols staggeringly through a first antenna and a second antenna and transmitting them. | 08-01-2013 |
20130295890 | TEXT FORWARDING APPARATUS AND METHOD - Provided is a text forwarding apparatus and method that may format a received email to a form of a text message, and may forward the text message to a terminal corresponding to a phone number selected or directly input, the text forwarding apparatus including a controller to receive an input of a phone number of a terminal to which an email is to be forwarded when the email is received, and a processor to format contents of the email to a form of a text message, and to forward the text message to the terminal. | 11-07-2013 |
20130317632 | PLATFORM APPARATUS FOR AGRICULTURAL ENVIRONMENT CONTROL SYSTEM - A platform apparatus for an agricultural environment control system includes an application support layer unit configured to generate and execute an environment task for supporting an application corresponding to an environment to which the agricultural environment control system is applied, a service layer unit configured to provide service libraries used in the application, a function layer unit configured to perform functions necessary to execute the application, a dynamic adaptation layer unit configured to define the environment task in an application layer irrespective of the number of sensors and actuators installed within the environment to which the agricultural environment control system is applied, and a physical abstraction layer unit configured to generate a mapping table using abstraction results of the sensors and the actuators and enable the agricultural environment control system to access the sensors and the actuators through the mapping table. | 11-28-2013 |
20130343392 | DIGITAL BROADCASTING SIGNAL TRANSMITTING METHOD AND DEVICE, RECORDING MEDIUM THEREOF, AND RECEIVING DEVICE THEREOF - In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services. | 12-26-2013 |
20140169664 | APPARATUS AND METHOD FOR RECOGNIZING HUMAN IN IMAGE - Disclosed herein are an apparatus and method for recognizing a human in an image. The apparatus includes a learning unit and a human recognition unit. The learning unit calculates a boundary value between a human and a non-human based on feature candidates extracted from a learning image, detects a feature candidate for which an error is minimized as the learning image is divided into the human and the non-human using the calculated boundary value, and determines the detected feature candidate to be a feature. The human recognition unit extracts a candidate image where a human may be present from an acquired image, and determines whether the candidate image corresponds to a human based on the feature that is determined by the learning unit. | 06-19-2014 |
20140177946 | HUMAN DETECTION APPARATUS AND METHOD - Disclosed herein is an apparatus and method for detecting a person from an input video image with high reliability by using gradient-based feature vectors and a neural network. The human detection apparatus includes an image preprocessing unit for modeling a background image from an input image. A moving object area setting unit sets a moving object area in which motion is present by obtaining a difference between the input image and the background image. A human region detection unit extracts gradient-based feature vectors for a whole body and an upper body from the moving object area, and detects a human region in which a person is present by using the gradient-based feature vectors for the whole body and the upper body as input of a neural network classifier. A decision unit decides whether an object in the detected human region is a person or a non-person. | 06-26-2014 |
20140193071 | METHOD AND APPARATUS FOR DETECTING AND RECOGNIZING OBJECT USING LOCAL BINARY PATTERNS - A method and apparatus for detecting and recognizing an object using a vector histogram based on a local binary pattern are disclosed. The apparatus of detecting and recognizing an object using a local binary pattern includes: a feature map creator configured to extract an object area in which a moving object exists from an input image, to create a local binary pattern by designating a local area in the object area, and to create a vector component map including information about magnitude vector components and direction vector components using the local binary pattern; a feature map configuring unit configured to divide the object area into a plurality of blocks and to create a feature vector map through a histogram using the vector component map in a unit of the block; and an object detector configured to detect and classify the moving object based on the feature vector map. | 07-10-2014 |
20140293005 | METHOD AND SYSTEM FOR TRANSMITTING/RECEIVING 3-DIMENSIONAL BROADCASTING SERVICE - Provided is a method and system of transmitting and receiving a three-dimensional (3D) broadcasting service, and more particularly, to a method and system for transmitting and receiving a reference image and a 3D auxiliary image for the 3D broadcasting service through a digital broadcasting network in real-time or in non-real time. According to the present invention, a smooth broadcasting service may be provided to terminals receiving a two-dimensional (2D) or 3D broadcast. | 10-02-2014 |
20140314280 | SYSTEM FOR PREDICTING PRODUCTION OF FRUIT TREE AND DRIVING METHOD THEREOF - Provided is a system for predicting production of a fruit tree, including a plant image obtaining unit collecting images of a fruit tree and confirming identification information about the fruit tree from the collected images, a branch pattern recognizing unit receiving an image of the fruit tree whose identification information is confirmed and extracting fruit bearing branches from among various kinds of branches belonging to the fruit tree, a fruit tree bud recognizing unit receiving an image of each of the extracted fruit bearing branches and extracting information about buds that fruits are actually to be born from among buds belonging to the fruit bearing branch, a meta database storing previous production predicting information about the fruit tree corresponding to the collected images, and a production estimating unit comparing the received bud information and the previous production predicting information to predict production of the fruit tree. | 10-23-2014 |
20140330451 | APPARATUS FOR MANAGING REFLECTING PLATE FOR FRUIT TREE AND METHOD USING THE SAME - An apparatus and a method for managing a reflecting plate for a fruit tree are disclosed. The apparatus for managing a reflecting plate for a fruit tree includes: a solar sensor configured to sense the amount of sunlight; a fruit-tree database configured to store therein types and locations of fruit trees grown in a growing area; a wireless communication unit configured to perform communications with a robot for moving a reflecting plate for a fruit tree and with the reflecting plate via a wireless communication network; and a central processing unit configured to control the robot so that it installs the reflecting plate in the growing area and to control a reflection angle at which the sunlight is reflected in the reflecting plate, based on at least one of the amount of sunlight, the types and locations. | 11-06-2014 |
20140376771 | SYSTEM FOR COLLECTING GROWTH INFORMATION OF CROPS IN GREENHOUSE - A system provides a collecting growth information of crops in greenhouse. In view of the above, it is possible to estimate the growth and yields of crops depending on the size of the greenhouse and the number of the crops in the greenhouse by collecting growth information of the crops such as plant lengths, leaf areas, internode lengths, fruit color, and the number of fruits of the reference crops. | 12-25-2014 |
20140379328 | APPARATUS AND METHOD FOR OUTPUTTING IMAGE ACCORDING TO TEXT INPUT IN REAL TIME - An apparatus and method for outputting an image according to text input in real time are provided. The apparatus for outputting an image in real time includes: a text receiving unit configured to extract unit text from input text; a syntax analyzing unit configured to analyze syntax of the unit text to generate state information corresponding to the unit text; a text reference database (DB) matching unit configured to search a reference DB to generate an image corresponding to the state information; a change necessity determining unit configured to determine whether an image corresponding to previous unit text needs to be changed; and an output unit configured to generate an output image by using any one or more of the image corresponding to the state information and the image corresponding to the previous unit text according to the necessity for the change. | 12-25-2014 |