| Patent application number | Description | Published |
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| 20080232470 | Method of Scalable Video Coding and the Codec Using the Same - Since joint scalable video coding (JSVC) adopts a scheme in which numbers are assigned to all of the pictures according to the order in which the pictures are displayed, it is difficult to detect a drop (or loss) of a key picture and thus it is difficult to effectively take action against an error caused by the loss of the key picture. The present invention provides a coding method of detecting a loss of a key picture by numbering key pictures in JSVC in which predictive (P) pictures have a closed-loop structure and of effectively taking action against an error in the case of a loss of a key picture, and a codec using the coding method. The SVC method includes performing encoding while assigning a number to a key picture of an upper layer and performing decoding with respect to the number-encoded current key picture of the upper layer using data of a decoded image of a picture of a lower layer that is temporally matched with the current key picture of the upper layer when a loss of a key picture between the number-encoded current key picture of the upper layer and a previous key picture that is number-encoded prior to the current key picture is detected. Therefore, it is possible to effectively take action against to an error caused by a loss of a key picture by detecting the loss of a key picture during decoding by encoding using numbering of key pictures in JSVC in which closed-loop coding is performed by consecutively predicting key pictures. Moreover, it is possible to minimize degradation in image quality by concealing an error caused by an incorrect reference by using data of a decoded image of a corresponding picture of a lower base layer when a key picture of an upper layer is lost in an environment where transmission of the lower base layer is guaranteed with a video stream having a multi-layered structure. | 09-25-2008 |
| 20090116546 | TRANSCODING APPARATUS AND METHOD BETWEEN TWO CODECS EACH INCLUDING A DEBLOCKING FILTER - Disclosed are a transcoding apparatus and method between two codecs each including a deblocking filter. The transcoding method between first and second codecs each including a deblocking filter, may include decoding input data encoded according to the first codec, according to the first codec so as to generate decoded data; and encoding the decoded data according to the second codec. The decoded data may include data on which deblocking filtering is not performed by the first codec, or data on which deblocking filtering is adaptively performed by the first codec. The decoded data may further include data on which deblocking filtering is performed by the first codec. The decoded data may be used as input data when the second codec performs encoding and/or when the second codec performs motion estimation. | 05-07-2009 |
| 20100019892 | GATEWAY CONTROL APPARATUS FOR VEHICLES AND TRAVEL INFORMATION RECORDING METHOD THEREOF - A gateway control apparatus for vehicles includes a receiver configured to receive vehicle state information from vehicle ECUs and a vehicle-to-vehicle distance from an intelligent cruise control unit. The gateway control apparatus also includes a first memory to store the vehicle state information, a calculation unit to calculate a relative velocity and a relative acceleration from the vehicle state information, and to calculate a collision index. A determination unit determines if the collision index exceeds a predetermined value. A vehicle information management unit determines an accident occurrence time point when the collision index exceeds the predetermined value, and allows the first memory to store pre-accident and post-accident vehicle state information. The gateway control apparatus stores the pre-accident and post-accident vehicle state information even in the case of a fender bender or minor collision to use the stored information for post-accident judgment. | 01-28-2010 |
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| 20090319119 | GATEWAY CONTROL APPARATUS FOR VEHICLES AND TRAVEL INFORMATION RECORDING METHOD THEREOF - A gateway control apparatus for vehicles includes a receiver receiving travel state information sent from sensors and vehicle ECUs through interfaces, a first memory storing the travel state information, a determination unit determining occurrence of a vehicle accident or an ECU malfunction based on the travel state information, a second memory, and a controller allowing the second memory to store malfunction information of an associated ECU among the travel state information if the ECU malfunction has occurred, and allowing the first memory to store pre-accident travel state information and post-accident vehicle state information with reference to an accident occurrence time point if the vehicle accident has occurred. The gateway control apparatus enables not only data communication between the ECUs having different communication modes, but also accurate analysis of causes of the vehicle accident or the ECU malfunction. A travel information recording method of the gateway control apparatus is also disclosed. | 12-24-2009 |
| 20110006886 | WIRELESS SWITCH TRIGGERING BLACK BOX SYSTEM FOR A VEHICLE AND CONTROL METHOD THEREOF - Disclosed is a black box system for a vehicle and a control method thereof. The wireless switch triggering black box system includes: a black box terminal comprising an acceleration sensor, a camera module, a data storage unit, and a wireless transmission module; and a wireless reception module, which transmits an operation trigger signal for the data storage unit to the wireless transmission module when an embedded switch of the wireless reception module is operated, wherein the data storage unit included in the black box terminal stores data acquired during a predetermined time interval before and after the operation of the switch. In the wireless switch triggering black box system, a wireless transmission module for triggering the data storage of a black box terminal is located at a position at which a driver can easily handle the wireless transmission module, so that the driver can trigger the execution of black box function without losing the driver's front visual field at a time point desired by the driver, thereby securing a safe driving environment. | 01-13-2011 |
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| 20090007205 | USER TERMINAL AND PROXY SERVER OF INTERNET PROTOCOL TELEVISION (IPTV) SYSTEM, AND OPERATING METHOD THEREOF - A user terminal and proxy server of an Internet Protocol Television (IPTV), and an operating method thereof are provided. A user terminal of an IPTV system includes a channel information input unit which receives channel information as an input, a channel management unit which transmits the input channel information to a proxy server, and receives from the proxy server a content information that corresponds to the channel information, and a content playback unit which replays a content using the received content information. As a result, viewers can use IPTV contents as easily as they use general TVs. | 01-01-2009 |
| 20090019479 | IPTV CAPABLE OF AUTO CHANNEL SETTING AND METHOD THEREOF - An Internet Protocol Television (IPTV) capable of auto channel setting and a method thereof are provided. A channel information generating unit converts summaries of a plurality of web contents provided through the Internet into channel information as required by channel listing, and allocates channel numbers to the plurality of web contents, and a storage unit stores the allocated channel numbers and the generated channel information. | 01-15-2009 |
| 20090122991 | METHOD AND APPARATUS FOR PROVIDING ENCRYPTED KEY BASED ON DRM TYPE OF HOST DEVICE - A method and apparatus for providing an encrypted key based on a DRM type of a host device are provided. The method includes receiving available DRM type information of a host device, making a request for generation of a key object based on the received available DRM type information, and transmitting the generated key object to the host device. | 05-14-2009 |
| 20100131965 | IMAGE DISPLAY DEVICE FOR PROVIDING CONTENT AND METHOD FOR PROVIDING CONTENT USING THE SAME - An image display device for providing content and a method thereof. The image display device for providing content using a template, according to an exemplary embodiment of the present invention, comprises a content composition unit for composing content using a predefined template, and an agent for changing the composition of the content if an event occurs. Accordingly, the content is provided by various templates using a single template. | 05-27-2010 |
| 20100146461 | ELECTRONIC APPARATUS AND DISPLAYING METHOD THEREOF - An electronic apparatus and a displaying method thereof are provided. The electronic apparatus includes a sensor which senses user information, and a controller which reads out item information based on the sensed user information, determines a display method of item content corresponding to the read-out item information, and controls the item content to be displayed in the determined display method. Accordingly, actual goods are displayed along with information regarding the actual goods so that the user can realize a displayed image as actual goods and can easily obtain goods information. | 06-10-2010 |
| 20100161409 | APPARATUS FOR PROVIDING CONTENT ACCORDING TO USER'S INTEREST IN CONTENT AND METHOD FOR PROVIDING CONTENT ACCORDING TO USER'S INTEREST IN CONTENT - An apparatus for providing content based on user's interest and a method for providing content based on user's interest are provided. The apparatus for providing content generates content differently according to the user's interest in content and outputs the generated content. Accordingly, more specialized content are provided to a user interested in the currently displayed content. | 06-24-2010 |
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| 20110216821 | METHOD AND APPARATUS FOR ADAPTIVE STREAMING USING SCALABLE VIDEO CODING SCHEME - A method which provides a video streaming service, and the method includes: generating layer data for a corresponding video in accordance with a layer coding scheme using residual data; receiving bit rate information including a bit rate decodable in a terminal from the terminal; selecting a layer necessary for a decoding of a video corresponding to the decodable bit rate from among the generated layer data; and transmitting layer information and layer data corresponding to the selected layer to the terminal. | 09-08-2011 |
| 20110274180 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING LAYERED CODED VIDEO - Transmitting and receiving a layered coded video, in which a picture of a base layer and a picture of at least one enhancement layer are separately encoded, the encoded pictures of the base layer and the encoded pictures of the at least one enhancement layer are arranged on a slice basis, the arranged pictures are packetized by adding a header to the rearranged pictures, and the packets are transmitted as a bit stream. | 11-10-2011 |
| 20120063517 | METHOD AND APPARATUS FOR HIERARCHICAL PICTURE ENCODING AND DECODING - A residual picture is decoded first by demultiplexing an input enhancement layer bitstream into one or more bitstreams corresponding to an order of quality layers. Next, a residual picture is restored by independently decoding the bitstream for each quality layer. The restored residual picture is stored in a frame buffer. A finally restored residual picture is output by adding, to the restored residual picture, a picture that has undergone motion compensation in a reference frame within a same enhancement layer. | 03-15-2012 |
| 20120063692 | APPARATUS AND METHOD FOR MULTILAYER PICTURE ENCODING/DECODING - Provided is a multilayer picture encoding/decoding apparatus and method for reducing a dynamic range of residual pictures occurring in enhancement layers. The multilayer picture encoding method includes performing format down-conversion on an input picture, and generating a lower layer bitstream by encoding the format down-converted input picture; performing format up-conversion by adaptively or selectively applying a 1-dimensional (1-D) prediction filter to a picture of the lower layer depending on whether a lower layer prediction flag is set or not; and calculating a residual picture between the input picture and the format up-converted picture, and generating an enhancement bitstream by encoding the calculated residual picture. | 03-15-2012 |
| 20120093425 | ENTROPY ENCODING/DECODING METHOD AND APPARATUS FOR HIERARCHICAL IMAGE PROCESSING AND SYMBOL ENCODING/DECODING APPARATUS FOR THE SAME - Entropy decoding, after encoding, includes performing symbol decoding on a bitstream of a received residual picture in units of two, three, or four symbols according to a context model which is set in the two, three, or four symbol units, and ordering the decoded coefficients of the residual picture in their original order in the frequency domain. Symbol and level decoding may be performed together. A unique symbol value may be used. | 04-19-2012 |
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| 20080273599 | METHOD AND APPARATUS FOR ENCODING AND DECODING MULTI-VIEW VIDEO DATA - Provided are a method and apparatus for encoding and decoding multi-view video data. The method of encoding multi-view video data includes determining whether a current picture is an anchor picture; and encoding blocks of the current picture by selectively applying a skip block mode to the blocks if the current picture is the anchor picture. According to the present invention, image quality and coding efficiency may be improved. | 11-06-2008 |
| 20090003455 | METHOD AND APPARATUS FOR ILLUMINATION COMPENSATION IN MULTI-VIEW VIDEO CODING - Disclosed is a method and apparatus for illumination compensation in a multi view video coding. The method includes deriving a predicted illumination compensation value of the current block by using information on neighbor blocks of the current block when a current block performing illumination compensation is in a skip mode; setting the current block not to perform the illumination compensation when the derived predicted illumination compensation value is 0 and setting the current block to perform the illumination compensation when the derived predicted illumination compensation value is not 0. | 01-01-2009 |
| 20090010340 | METHOD AND APPARATUS FOR ILLUMINATION COMPENSATION IN MULTI-VIEW VIDEO CODING - Disclosed is a method of determining illumination compensation in a multi view video coding. The method includes determining when a current block performing illumination compensation is in a B skip mode and deriving a predicted illumination compensation value of the current block by using information regarding neighbor blocks of the current block and when the derived predicted illumination compensation value is not determining, setting the current block not to perform the illumination compensation; and when the derived predicted illumination compensation value is determining, setting the current block to perform the illumination compensation. | 01-08-2009 |
| 20110012994 | METHOD AND APPARATUS FOR MULTI-VIEW VIDEO CODING AND DECODING - A multi-view video coding method and apparatus and a multi-view video decoding method and apparatus for providing a multi-view video service are provided. The multi-view video coding method includes: coding a base layer picture using an arbitrary video codec; generating a prediction picture using at least one of a reconstructed base layer picture and a reconstructed layer picture having a different view from that of the base layer picture; and residual-coding a layer picture having the different view using the prediction picture. | 01-20-2011 |
| 20120014449 | METHOD AND APPARATUS FOR MULTI-VIEW VIDEO ENCODING USING CHROMINANCE COMPENSATION AND METHOD AND APPARATUS FOR MULTI-VIEW VIDEO DECODING USING CHROMINANCE COMPENSATION - Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting a first picture type indicating whether a current picture of the multi-view video is a reference video type for inter prediction; interpreting a block type indicating a method of determining a motion vector of a current block of the current picture; interpreting a chrominance compensation value of the current block based on at least one of the interpreted first picture type and the interpreted block type; and performing chrominance compensation on the current block by using the interpreted chrominance compensation value. | 01-19-2012 |
