| Patent application number | Description | Published |
|---|
| 20090154552 | TRANSMITTING SYSTEM AND RECEIVING SYSTEM FOR PROCESSING STREAM, AND STREAM PROCESSING METHODS THEREOF - A system for transmitting a transport stream including a robust stream is provided. The transmitting system includes an adaptor for, when receiving a first stream, making a space in the first stream to insert a second stream; a Reed-Solomon (RS) encoder for RS-encoding the input second stream; a Cyclic Redundancy Check (CRC) processor for converting the RS-encoded second stream to a stream comprising an added CRC bit sequence; and a stuffer for inserting the stream to the space in the first stream and outputting a transport stream. Hence, the robust stream can be efficiently transmitted. | 06-18-2009 |
| 20090197527 | SERVICE RELAY DEVICE, SERVICE RECEIVER FOR RECEIVING THE RELAYED SERVICE SIGNAL, AND METHODS THEREOF - A service relay device is provided. The service relay device includes a receiving unit which receives a service signal, and a service processing unit which changes information regarding an order of changing frequency channels included in the received service signal, using replacement frequency channels, and broadcasts the service signal. The service processing unit includes a detecting unit which detects the information regarding the order of changing frequency channels, a storage unit which stores information regarding replacement frequency channels, an information processing unit which replaces the information regarding the order of changing frequency channels, using the replacement frequency channels stored in the storage unit, and a relay unit which broadcasts a service signal. As a result, service signals are provided stably even in the fringe area. | 08-06-2009 |
| 20090274242 | DIGITAL BROADCAST TRANSMITTER AND RECEIVER AND METHOD FOR PROCESSING STREAM THEREOF - A digital broadcast receiver is provided. The digital broadcast receiver includes a receiver which receives a transport stream transmitted from a digital broadcast transmitter, an additional data stream detector which determines whether the received transport stream includes an additional data stream or not, and a processor which process the additional data stream if the transport stream include the additional data stream, and the transport stream including the additional data stream is a transport stream into which a training signal is inserted by the digital broadcast transmitter which resets memories used for trellis-encoding at predetermined time. Accordingly, it is easily detected whether the transport stream includes the additional data stream or not. | 11-05-2009 |
| 20090284653 | DIGITAL BROADCASTING TRANSMITTER, DIGITAL BROADCASTING RECEIVER, AND METHODS THEREOF - A digital broadcasting transmitter, digital broadcasting transmission method, digital broadcasting receiver, and digital broadcasting reception method are provided. The digital broadcasting transmitter includes: an input unit to receive corresponding audio data and video data; and a signal processing unit to individually construct a first type stream having the audio and the video data, and a second type stream having the audio data different in broadcast time from the audio and the video data in the first type stream, and to output the first type stream and the second type stream. Therefore, it is possible to reduce user inconvenience caused by a broadcast being disconnected. | 11-19-2009 |
| 20100002802 | OFDM TRANSMITTING AND RECEIVING SYSTEMS AND METHODS THEREOF - An orthogonal frequency division multiplexing (OFDM) transmission system is provided which includes a data processing unit which generates a transmission signal using a plurality of tones including a reserved tone, a storage unit which stores Peak Reduction Kernel information according to the type of data symbol, and a compensation unit which retrieves the Peak Reduction Kernel information according to the type of data symbol from the storage unit and causes the retrieved information to be carried by the reserved tone included in the transmission signal. Therefore, a Peak-to-Average Power Ratio (PAPR) can be efficiently compensated. | 01-07-2010 |
| 20100046411 | METHOD AND APPARATUS FOR TRANSMITTING BROADCAST DATA, AND METHOD AND APPARATUS FOR RECEIVING BROADCAST DATA - A method and apparatus for receiving or transmitting broadcast data are provided. The broadcast data receiving method includes: acquiring first signaling information indicating an ensemble in which service composition information of a broadcasting service is transmitted, acquiring the service composition information based on the first signaling information, and providing the broadcasting service based on the service composition information and the first signaling information. | 02-25-2010 |
| 20100118994 | DIGITAL TRANSMISSION SYSTEM FOR TRANSMITTING ADDITIONAL DATA AND METHOD THEREOF - A digital transmission system is disclosed. The system includes a transmission signal generation unit which generates a transmission signal in which data to be transmitted is carried by a carrier wave, and an additional data process unit which processes so that a low power signal to represent additional data is carried by the carrier wave. The system is embodied as an orthogonal frequency division multiplexing (OFDM) system such as a digital video broadcast-video (DVB-V), and a single carrier system such as a vestigial sideband modulation (VSB). Accordingly, additional data are efficiently transmitted without degrading transmission quality of main data. | 05-13-2010 |
| 20100183077 | RESPONSE TO ATSC MOBILE/HANDHELD RFP A-VSB MCAST AND, A-VSB PHYSICAL AND LINK LAYERS WITH SINGLE FREQUENCY NETWORK - A digital broadcasting transmitter including a Reed-Solomon (RS) encoder to encode signaling information, and a randomizer to randomize a stream including the signaling information encoded by the RS encoder. The signaling information is used by a receiver to demodulate and/or equalize the stream. | 07-22-2010 |
| 20100192045 | DEVICE FOR PROCESSING STREAMS AND METHOD THEREOF - A device for processing streams is disclosed. The device includes a stream arranging unit which stacks and rearranges a stream, and a dummy inserting unit which inserts a dummy into the rearranged stream. The device may further include a convolutional interleaver which interleaves the stream with a dummy or an RS encoder and a CRC encoder. | 07-29-2010 |
| 20100195709 | DEVICE FOR PROCESSING STREAMS AND METHOD THEREOF - A device for processing streams is disclosed. The device includes a stream arranging unit which stacks and rearranges a stream, and a dummy inserting unit which inserts a dummy into the rearranged stream. The device may further include a convolutional interleaver which interleaves the stream with a dummy or an RS encoder and a CRC encoder. | 08-05-2010 |
| 20100199147 | DEVICE FOR PROCESSING STREAMS AND METHOD THEREOF - A device for processing streams is disclosed. The device includes a stream arranging unit which stacks and rearranges a stream, and a dummy inserting unit which inserts a dummy into the rearranged stream. The device may further include a convolutional interleaver which interleaves the stream with a dummy or an RS encoder and a CRC encoder. | 08-05-2010 |
| 20100216480 | WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION DEVICE AND SYSTEM USING THE SAME - A wireless communication method in a cognitive radio (CR) environment, and a wireless communication device and a wireless communication system using the same are provided. A communication method includes receiving channel information indicating a channel used by an external device, searching for available channels, and performing communication through the available channel. Accordingly, interference between devices can be avoided, available channels can be found more rapidly, and wireless resources can be used more efficiently. | 08-26-2010 |
| 20100220779 | COMMON BROADCAST RECEIVER AND METHOD FOR PROCESSING A RECEIVED SIGNAL THEREOF - A common broadcast receiver that receives cable broadcast, terrestrial broadcast, and mobile broadcast signals is provided. The common broadcast receiver includes a synchronizer for receiving any one of a cable broadcast signal, a terrestrial broadcast signal, and a mobile broadcast signal including a training signal generated by a Deterministic Trellis Reset (DTR) and inserted in a data region, and synchronizing the received broadcast signal; and a signal detector for detecting any one of the cable broadcast signal, the terrestrial broadcast signal, and the mobile broadcast signal from the synchronized broadcast signal. Hence, the mobile broadcast signal can be received and processed in addition to the cable broadcast signal and the terrestrial broadcast signal. | 09-02-2010 |
| 20100290545 | OFDM TRANSMISSION/RECEPTION DEVICE FOR TRANSMITTING AND RECEIVING OFDM SYMBOLS HAVING A VARIABLE DATA TRANSMISSION RATE AND METHOD THEREOF - An orthogonal frequency division multiplexing (OFDM) transmission device transmits OFDM symbols to at least one reception device and includes an OFDM transmission processing unit which generates a plurality of OFDM symbols; a pilot insertion unit which inserts pilot tones into each of the plurality of OFDM symbols; and a control unit which controls the pilot insertion unit to insert the pilot tones according to a pilot insertion pattern which is selected to correspond to a communication environment from among a plurality of pilot insertion patterns. | 11-18-2010 |
| 20100296001 | DIGITAL BROADCAST TRANSMITTER, DIGITAL BROADCAST RECEIVER, AND METHODS FOR CONFIGURING AND PROCESSING STREAMS THEREOF - A method for processing a stream of a digital broadcast receiver is provided. The method which processes a stream that is divided into a first area allocated to first mobile data and a second area allocated to normal data, includes: receiving a transport stream including new mobile data in at least a part of the second area separately from the first mobile data, demodulating the transport stream, equalizing the demodulated transport stream, and decoding at least one of the first mobile data and the new mobile data from the equalized transport stream. Accordingly, mobile data services may be provided in various ways. | 11-25-2010 |
| 20100296424 | DIGITAL BROADCAST TRANSMITTER, DIGITAL BROADCAST RECEIVER, AND METHODS FOR CONFIGURING AND PROCESSING STREAMS THEREOF - A method for processing a stream of a digital broadcast receiver is provided. The method which processes a stream that is divided into a first area allocated to first mobile data and a second area allocated to normal data, includes: receiving a transport stream including second mobile data in at least a part of the second area separately from the first mobile data, demodulating the transport stream, equalizing the demodulated transport stream, and decoding at least one of the first mobile data and the second mobile data from the equalized transport stream. Accordingly, mobile data services may be provided in various ways. | 11-25-2010 |
| 20100296506 | DIGITAL BROADCAST TRANSMITTER, DIGITAL BROADCAST RECEIVER, AND METHODS FOR CONFIGURING AND PROCESSING STREAMS THEREOF - A method for processing a stream of a digital broadcast receiver is provided. The method which processes a stream that is divided into a first area allocated to first mobile data and a second area allocated to normal data, includes: receiving a transport stream including new mobile data in at least a part of the second area separately from the first mobile data, demodulating the transport stream, equalizing the demodulated transport stream, and decoding at least one of the first mobile data and the new mobile data from the equalized transport stream. Accordingly, mobile data services may be provided in various ways. | 11-25-2010 |
| 20110030026 | DIGITAL BROADCAST TRANSMITTER AND RECEIVER AND METHOD FOR TRANSMITTING AND RECEIVING BROADCAST THEREOF - A digital broadcast receiver is provided. The receiver includes a reception unit to select an aggregation channel providing access information regarding at least one broadcast channel and a control unit to control the reception unit to select a broadcast channel using access information provided by the aggregation channel. | 02-03-2011 |
