Patent application number | Description | Published |
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 |
20100183060 | METHOD AND APPARATUS OF FREQUENCY OFFSET-FREE FRAME SYNCHRONIZATION FOR HIGH ORDER QAM SIGNALS IN MODEM APPARATUS - Provided is a method and apparatus for performing a frequency offset-free frame synchronization with respect to high order quadrature amplitude modulation (QAM) symbols in a modem apparatus. A method of performing a correlation-based frame synchronization using magnitudes of QAM symbols in a modem apparatus, may include: constructing a synchronization pattern using the magnitudes of the QAM symbols; sequentially calculating a magnitude of each of received signals based on a symbol unit to construct a received vector; and obtaining a frame synchronization based on a correlation between the received vector and the synchronization pattern. | 07-22-2010 |
20110096775 | SYSTEM AND METHOD FOR MULTIPLEXING AND STREAMING CONTENTS - Provided is a system and method for effectively multiplexing and streaming contents. The system may include a plurality of video packetized elementary stream (PES) packetizers to transform, to a video PES packet, elementary stream (ES) data encoded in a video encoder, a plurality of audio PES packetizers to transform, to an audio PES packet, ES data encoded in an audio encoder, a sync information generator to generate sync information for synchronizing each of decoded streams in a process of decoding a transport stream (TS) signal, and the TS packetizer to generate a plurality of program streams using the audio PES packet, the video PES packet, and the sync information, to generate program specific information (PSI) for a configuration of the plurality of program streams, and to insert the PSI between the plurality of program streams in a predetermined period to generate the TS signal. | 04-28-2011 |
20110167317 | APPARATUS FOR ADAPTABLE/VARIABLE TYPE MODULATION AND DEMODULATION IN DIGITAL TX/RX SYSTEM - Disclosed is an adaptable/variable type modulation/demodulation apparatus. A physical layer transmission apparatus for adaptable/variable type modulation, the transmission apparatus including a classification unit to classify a bit stream according to a standard that is determined in advance after receiving the bit stream, an uncoded bit group unit to group the bit stream not to be LDPC-coded by a predetermined number of bits, an LDPC encoder to perform LDPC-coding of the bit stream, a coded bit group unit to group the coded bit stream by the predetermined number of bits, a quadrature amplitude modulation (QAM) unit to select a symbol coset using the coded bit groups; and a convolutional interleaver to perform convolutional interleaving of the symbol. | 07-07-2011 |
20120120969 | APPARATUS AND METHOD FOR GENERATING AN MPEG-2 TRANSPORT PACKET HAVING A VARIABLE PACKET LENGTH - Provided is a transport packet generating apparatus that generates a transport packet having a variable length, and the length of the transport packet is indicated by a field included in a header of the transport packet or a synchronization area of the transport packet, the field indicating a length of the transport packet. | 05-17-2012 |
20120127266 | METHOD AND APPARATUS FOR PROVIDING STEREOSCOPIC 3D BROADCASTING SERVICE COMPATIBLE WITH HD BROADCASTING SERVICE - A method and apparatus for providing a broadcasting service are provided. The broadcasting service may be classified based on a broadcasting service type, such as a frame-compatible service, and a service-compatible service. Additionally, a descriptor may be generated based on the broadcasting service type, and a compatibility between a stereoscopic three-dimensional (3D) broadcasting service and a single stream-based broadcasting service may be provided. | 05-24-2012 |
20120257012 | METHOD AND APPARATUS FOR 3-DIMENSIONAL IMAGE DISPLAY - A display method and a display apparatus of a 3D image are provided. The display method includes: receiving an image stream; determining a viewing mode of the image stream; determining whether or not a screen of a display apparatus is adjusted according to the determined viewing mode; and adjusting the screen of the display apparatus in the case in which it is determined in the determining of whether or not the screen of the display apparatus is adjusted that the screen is adjusted, wherein the viewing mode of the image stream includes a 2D image viewing mode and a 3D image viewing mode. | 10-11-2012 |
20140112395 | METHOD AND APPARATUS FOR DECODER BUFFERING IN HYBRID CODED VIDEO SYSTEM - Disclosed is a transport device in a video system which uses a hybrid video codec. The transport device includes a first video encoder which encodes a first video using a first video codec, a second video encoder which encodes a second video using a second video codec, and a delay buffer for synchronizing a delay time for the first video and the second video, based on a buffer size of if a first transport stream system target decoder (T-STD) stipulated in the first video encoder and a buffer size of a second T-STD stipulated in the second video encoder. | 04-24-2014 |
20140215547 | METHOD AND SYSTEM FOR PROVIDING REALISTIC BROADCASTING IMAGE - A method of providing a realistic broadcasting image including an ultra high definition (UHD) image, the method including generating a first encoding stream from a high definition (HD) image, generating a second encoding stream from at least one of a UHD image and an image restored from the first encoding stream, generating a third encoding stream from at least one of the UHD image and an image restored from the second encoding stream, generating a first transmission stream by applying at least one of packetization, synchronization, and multiplying to the first encoding stream and the second encoding stream, generating a second transmission stream by applying at least one of packetization and synchronization to the third encoding stream, transmitting the first transmission stream via a first transmission channel, and transmitting the second transmission stream via a second transmission channel having a lower transmission capacity than the first transmission channel. | 07-31-2014 |
20140354777 | APPARATUS AND METHOD FOR OBTAINING SPATIAL INFORMATION USING ACTIVE ARRAY LENS - Disclosed herein are an apparatus and method for obtaining spatial information using an active array lens. In order to obtain spatial information in the apparatus for obtaining spatial information including the active microlens, at least one active pattern for varying a microlens' focus is determined by controlling voltage applied to a pattern of the active microlens, and at least one projection image captured by the at least one active pattern is obtained in a time-division unit. | 12-04-2014 |
20150077515 | METHOD AND DEVICE FOR COMPENSATING FOR SYNCHRONIZATION BETWEEN LEFT AND RIGHT IMAGE FRAMES IN THREE-DIMENSIONAL IMAGING SYSTEM, AND REPRODUCTION DEVICE AND METHOD - An apparatus for compensating for synchronization between left and right image frames in a stereoscopic system includes a similarity calculating unit configured to calculate similarity between left and right image frames on the basis of a scene change point in time of the left and right image frames, a left and right image frame difference value extracting unit configured to search a stereoscopic pair on the basis of the similarity and extract a temporal frame difference value between the left and right image frames, and a left and right image frame synchronization compensating unit configured to perform synchronization by shifting any one of the the left and right image frames on a time axis on the basis of the left and right image frame difference value. | 03-19-2015 |
Patent application number | Description | Published |
20120320170 | SEGMENTED DUAL LAYER PARALLAX BARRIER-BASED 3D DISPLAY DEVICE AND METHOD - A segmented dual layer parallax barrier-based 3D display device may includes an image panel that displays a left image and a right image so as to alternately display a left-image column and a right-image column; a dual layer parallax barrier that includes a first common electrode, a second common electrode, a plurality of first individual electrodes, a plurality of second individual electrodes, a plurality of segmented electrodes, and a liquid crystal layer, and blocks specific portions of the displayed images; and a driving unit that drives the electrodes based on the distance between the image panel and the viewer so as to allow the viewer to view the left image and the right image, separately. | 12-20-2012 |
20120320171 | DUAL LAYER PARALLAX BARRIER-BASED 3D DISPLAY DEVICE AND METHOD - A dual layer parallax barrier-based 3D display device may include an image panel that displays a left image and a right image so as to alternately display a left-image column and a right-image column, a dual layer parallax barrier that includes a first common electrode, a second common electrode, a plurality of first individual electrodes, a plurality of second individual electrodes, and a liquid crystal layer, and blocks specific portions of the displayed images and a driving unit that drives the electrodes based on the distance between the image panel and the viewer so as to allow the viewer to view the left image and the right image, separately, and simultaneously drives, in a particular state, at least one of the first common electrode and the plurality of first individual electrodes and at least one of the second common electrode and the plurality of second individual electrodes. | 12-20-2012 |
20130088653 | STEREO-SCOPIC IMAGE PANEL, STEREO-SCOPIC IMAGE DISPLAY APPARATUS HAVING THE SAME AND DRIVING METHOD THEREOF - A stereoscopic image panel according to the present invention includes: a liquid crystal layer; a first parallax barrier layer including a first electrode unit adjacent to one side of the liquid crystal layer and a second electrode unit opposite the other side of the liquid crystal layer; and a second parallax barrier layer including a third electrode unit opposite one side of the liquid crystal layer, between the liquid crystal layer and the first electrode unit, and a fourth electrode unit positioned adjacent to the second electrode unit, wherein the second electrode unit is positioned between the liquid crystal layer and the fourth electrode unit. | 04-11-2013 |
20130100110 | STEREO-SCOPIC IMAGE PANEL, STEREO-SCOPIC IMAGE DISPLAY APPARATUS HAVING THE SAME AND DRIVING METHOD THEREOF - The present invention provides a stereoscopic image panel making it possible to freely watch a stereoscopic image by being equipped with parallax barriers, a stereoscopic image display apparatus including the stereoscopic image panel, and a method of driving the stereoscopic image panel. A stereoscopic image panel according to the present invention includes: a liquid crystal layer; a first electrode unit positioned opposite to one side of the liquid crystal layer; a second electrode unit including first, second, and third electrodes positioned such that one side of each of the electrodes is opposite the other side of the liquid crystal layer; and a third electrode unit positioned opposite the other side of the second electrode. | 04-25-2013 |
20130222365 | APPARATUS AND METHOD FOR DISPLAYING IMAGE ON 3-DIMENSIONAL DISPLAY BASED ON MULTI-LAYER PARALLAX BARRIER - An apparatus and method for displaying an image on a 3D image display device based on a multi-layer parallax barrier are provided. The method includes: measuring a position of a viewer based on the display device; determining whether or not parallax barrier switching is required based on the measurement results; and when parallax barrier switching is determined to be required in the determination, outputting a 2D image through the 3D display device from a point in time at which the parallax barrier switching starts to a point in time at which the parallax barrier switching ends, wherein the 3D image is an image in which a left image and a right image is distributedly disposed in the same frame, and the 2D image is an image in which only any one of the left image and the right image is disposed in the same frame. | 08-29-2013 |
20130250051 | SIGNALING METHOD FOR A STEREOSCOPIC VIDEO SERVICE AND APPARATUS USING THE METHOD - Disclosed are a signaling method for a stereoscopic video service and an apparatus using the method. An image decoding method comprises: a step of determining a field value based on a broadcast service type and a display mode in decoding a program level descriptor; and a step of determining an encoded stream type, whether an elementary stream is a reference stream, whether the elementary stream is a left-eye image or a right-eye image, additional image upsampling information and information on a subsampled line. Thus, efficiency of encoding/decoding an additional image for a stereoscopic video content may increase. | 09-26-2013 |
20130250059 | METHOD AND APPARATUS FOR TRANSMITTING STEREOSCOPIC VIDEO INFORMATION - Provided are a method and an apparatus for transmitting stereoscopic video information capable of providing a stereoscopic video service. The method for transmitting stereoscopic video information comprises the steps of: creating a signaling table including video-related information; and transmitting the signaling table and the video, wherein the signaling table can include stream type information, a stereoscopic program information descriptor and/or a stereoscopic additional video stream descriptor, of the image | 09-26-2013 |
20140022241 | DISPLAY APPARATUS AND METHOD BASED ON SYMMETRICALLY SPB - Provided are a display apparatus and method based on an SSPB. The display apparatus includes a panel configured to play a 3-D image, a parallax barrier configured to include liquid crystals placed in the front of the panel and configured to transmit or block light emitted from the panel and pairs of transparent electrodes obliquely arranged to cross each other in a symmetric form in the front and rear of the liquid crystals based on the liquid crystals, and a driving unit configured to apply driving voltages to the parallax barrier. The parallax barrier can transmit or block a specific part of the played 3-D image through the panel in response to the applied driving voltages. | 01-23-2014 |
20140035800 | SEGMENTED PARALLAX BARRIER BASED DISPLAY APPARATUS WITH 2D/3D MODE SWITCHING AND METHOD THEREOF - Disclosed are a segmented parallax barrier based display apparatus with 2D/3D mode switching and a method thereof. The parallax barrier based display apparatus may include a first panel reproducing an image; and a second panel positioned on a front surface of the first panel and including a first liquid crystal for forming a parallax barrier that blocks a part of the image reproduced by the first panel and a second liquid crystal for switching polarization of light that transmits the first liquid crystal. | 02-06-2014 |
20140063341 | METHOD AND APPARATUS FOR SCALABLE BROADCAST - Disclosed are a method and an apparatus for a scalable broadcast. The method includes scalably dividing a broadcast frequency band into segments, scalably dividing a video image into segments, and linking the segment of the broadcast frequency band to the scalably divided video image, and broadcasting the linked segments to at least one receiving apparatus. | 03-06-2014 |
20140223349 | METHOD AND APPARATUS FOR CONTROLLING ELECTRONIC DEVICE - There are provided a method and apparatus for controlling an electronic device. The apparatus for controlling an electronic device includes a marker recognition unit configured to recognize the marker of the electronic device and a control unit configured to perform communication with the electronic device based on the marker and control the electronic device using a Graphic User Interface (GUI) program received from the electronic device. | 08-07-2014 |