Class / Patent application number | Description | Number of patent applications / Date published |
386356000 | MPEG decompression or decoding (e.g., MPEG1, MPEG2, inter-frame, etc.) | 19 |
20110013889 | IMPLEMENTING CHANNEL START AND FILE SEEK FOR DECODER - A video bit stream with pictures comprising inter-coded content can be decoded upon receiving a channel start or file seek instruction. Pictures for beginning decoding and display of the bit stream can be selected based at least in part on one or more tuning parameters that set a preference between a latency of beginning to display video and possible defects in the displayed video. In some embodiments, to implement decoding upon a channel start or file seek, one or more types of data are generated for one or more pictures. For example, picture order counts are generated for pictures after a channel start or file seek operation. As another example, a decoder generates a frame number value that triggers re-initialization of a reference picture buffer before decoding after a channel start or file seek operation. | 01-20-2011 |
20110075997 | DECODING EARLIER FRAMES WITH DTS/PTS BACKWARD EXTRAPOLATION - In one method embodiment, receiving a video stream comprising a first compressed picture without associated time stamp information and a second compressed picture having associated first time stamp information, the second compressed picture following the first compressed picture in transmission order; deriving second time stamp information based on the first time stamp information; and processing the first compressed picture based on the second time stamp information. | 03-31-2011 |
20110081133 | METHOD AND SYSTEM FOR A FAST CHANNEL CHANGE IN 3D VIDEO - Receiver receives a compressed 3D video comprising a base view video and an enhancement view video. The video receiver determines a random access that occurs at a two-view misaligned base view RAP to start decoding activities on the received compressed 3D video based on a corresponding two-view aligned random access point (RAP). The corresponding two-view aligned RAP is adjacent to the two-view misaligned base view RAP. Pictures in the received compressed 3D video are buffered for the two-view misaligned base view RAP to be decoded staring from the corresponding two-view aligned RAP. One or more pictures in the enhancement view video are interpolated based on the two-view misaligned base view RAP. The video receiver selects a portion of the buffered pictures to be decoded to facilitate a trick mode in personal video recording (PVR) operations for random access at the two-view misaligned RAP. | 04-07-2011 |
20110103775 | REPRODUCTION DEVICE, RECORDING METHOD, PROGRAM, AND REPRODUCTION METHOD - A BD-ROM contains an AVClip in which a video stream is multiplexed with an interactive graphics stream. The video stream constitutes a moving picture. On the other hand, the graphics stream constitutes menu presentations to be combined with a moving picture. The graphics stream includes a plurality of display sets constituting the menu presentations. Each of the display sets has interactive control information (ICS). Among the display sets belonging to the graphics stream, the interactive control information (ICS) other than the one belonging to the head one include version information (page_version_number) indicating whether or not content of the menu presentation has changed with respect to the previous Display Set. | 05-05-2011 |
20110110651 | METHOD AND APPARATUS FOR PROCESSING VIDEO AND AUDIO DATA RECEIVED IN DECODING SYSTEM - A method and an apparatus for processing video and audio data received in a decoding system are provided. The method includes the following steps. When a program clock reference (PCR) is unavailable in the system, a system time clock (STC) is recovered by using a presentation time stamp (PTS) of video or audio data, or a linear combination result of the PTS of the video data and the PTS of the audio data. The STC is compared with the PTSs of the currently captured and audio data, and a current data processing mode is determined. A difference between the PTS of the video data and the PTS of the audio data is monitored. An absolute value of the difference is compared with a preset threshold value, and when the absolute value is greater than or equal to the threshold value, an asynchronous play mode is adopted as a system play mode; otherwise, a synchronous play mode is adopted as the system play mode. Through the method and apparatus, synchronization of video signals and audio signals can be achieved when the PCR is unavailable in the decoding system. | 05-12-2011 |
20110200308 | DIGITAL IMAGE DECODER WITH INTEGRATED CONCURRENT IMAGE PRESCALER - According to some embodiments, encoded information associated with an image is received at a decoder. The encoded information may be decoded at the decoder to generate full-sized first image pixels representing a full-sized version of the image. Moreover, the full-sized pixels may be scaled at the decoder to generate scaled image pixels representing a scaled version of the image. | 08-18-2011 |
20110206356 | METHOD FOR EMBEDDING VIDEO ANNOTATION DATA INTO A CODED VIDEO STREAM AND VIDEO RECORDING DEVICE - The invention concerns a method for embedding video annotation data into a coded video stream. The method comprises the step of—encapsulating said video annotation data into a unit, so-called video annotation unit, of the coded video data stream which format corresponds to at least one format used for sending the associated video data,—inserting an identifiable synchronizing code enabling the identification of said video annotation unit into the video data stream. | 08-25-2011 |
20110236001 | HIGH-RESOLUTION OPTICAL DISK FOR RECORDING STEREOSCOPIC VIDEO, OPTICAL DISK REPRODUCING DEVICE, AND OPTICAL DISK RECORDING DEVICE - An optical disk for recording stereoscopic videos and high-quality video signals and a system for reproducing the videos and signals from the optical disk are made compatible with the conventional video reproducing system. A reproducing device which is used for reproducing stereoscopic videos and high-quality videos obtains stereoscopic video or high-quality videos by reproducing both first and second interleaved blocks on the optical disk in which first and second video signals are alternately recorded on the left and right sides by dividing the first and second video signals into frame groups of one GOP or more and a reproducing device which is not used for reproducing the stereoscopic videos and high-quality videos obtains ordinary videos by only reproducing either the first or second interleaved block by jumping tracks. | 09-29-2011 |
20110255846 | RECORDING MEDIUM, REPRODUCING APPARATUS, AND REPRODUCING METHOD - In a recording medium on which is recorded a multiplexed stream ( | 10-20-2011 |
20120201521 | Provision of Supplemental Processing Information - Supplemental processing information ( | 08-09-2012 |
20120207455 | PLAYBACK DEVICE FOR OPTICAL RECORDING MEDIUM. OPTICAL RECORDING MEDIUM PLAYBACK METHOD, AND PLAYBACK PROGRAM FOR OPTICAL RECORDING MEDIUM - To play back an optical disk requiring network connection, a playback device is provided, which has a function by which the network condition is evaluated before playing back a title. The playback device plays back the optical disk including programs connecting through the network to data-supplying sources; the playback device determines whether or not the network circuit is available; and when the network connection is not available depending on a network connection status or its memory amount, the playback device plays back with a non-network-ready mode. | 08-16-2012 |
20120213498 | METHOD AND APPARATUS FOR COMPOSITION OF SUBTITLES - Embodiments of the invention include a subtitling format encompassing elements of enhanced syntax and semantic to provide improved animation capabilities. The disclosed elements improve subtitle performance without stressing the available subtitle bitrate. This will become essential for authoring content of high-end HDTV subtitles in pre-recorded format, which can be broadcast or stored on high capacity optical media, e.g. the Blue-ray Disc. Embodiments of the invention include abilities for improved authoring possibilities for the content production to animate subtitles. For subtitles that are separate from AV material, a method includes using one or more superimposed subtitle layers, and displaying only a selected part of the transferred subtitles at a time. Further, colors of a selected part of the displayed subtitles may be modified, e.g. highlighted. | 08-23-2012 |
20130315573 | DATA CREATION DEVICE AND PLAYBACK DEVICE FOR VIDEO PICTURE IN VIDEO STREAM - A data creation device performing compression encoding on first frame images showing a view from a first viewpoint and second frame images showing a view from a second viewpoint generates a stream in an MPEG-2 format, and base-view/dependent-view video streams in a format conforming to an MPEG-4 MVC format. The stream in the MPEG-2 format is generated by performing compression encoding on the first frame images. The base-view video stream is a stream of dummy data having the same number of frames as and a smaller data amount than the stream in the MPEG-2 format. The dependent-view video stream is obtained by performing compression encoding on each frame of the second frame images, with reference to a frame of the stream in the MPEG-2 format to be presented at the same time as a frame of the base-view video stream corresponding to the frame of the second frame images. | 11-28-2013 |
20140037272 | Eliminating Plaintext Video from External Memory - In an embodiment, an integrated circuit comprises a decrypt unit configured to decrypt an encrypted, compressed video stream; an on-chip buffer; and a decompressor coupled to the decrypt unit and the on-chip buffer. The decompressor is configured decompress the video stream, and to store a first portion of each of a first plurality of frames decompressed from the video stream in the on-chip buffer. The decompressor is further configured to store a remaining portion of each of the first plurality of frames in an external memory, wherein each frame as stored in the external memory is incomplete because the first portion is not stored in the external memory. | 02-06-2014 |
20140119714 | METHOD OF REPRODUCING A STILL PICTURE FROM A RECORDING MEDIUM, METHOD OF DECODING THE STILL PICTURE AND THE RECORDING MEDIUM - In the method, video data is reproduced from the recording medium, and an I-picture and a number of P-pictures are output as a still picture based on the reproduced video data. The output data may then be received and decoded for display. | 05-01-2014 |
20140233925 | RECORDING MEDIUM, REPRODUCING APPARATUS, AND REPRODUCING METHOD - In a recording medium on which is recorded a multiplexed stream including a plurality of first packets (V_main) constituting a first I-picture in a first video stream and a plurality of second packets (V_sub) constituting a second I-picture in a second video stream, information for identifying the first I-picture and information for identifying the second I-picture are recorded on the medium. A recording medium can thereby be obtained that enables the rapid detection, from a small amount of information, of a particular picture included in a stream such as a TS in which multiple content streams are multiplexed. | 08-21-2014 |
20140321835 | SPACE EFFICIENCY AND MANAGEMENT OF CONTENT - A transcoder resource retrieves content stored in a repository. The stored content can be encoded in accordance with a first encoding format. The transcoder resource transcodes the retrieved content into a second encoding format. To increase available capacity, the transcoder resource stores the content in the second encoding format as a replacement to the content encoded according to the first encoding format. The second encoding format can support a higher compression ratio than the first encoding format. Additionally, the transcoding can be performed as one of multiple tasks executed in parallel. In such an instance, during parallel processing, a content management resource interleaves execution of the main processing task and the background task of transcoding the content into the second encoding format. The transcoding task can be assigned a lower execution priority than one or more other tasks executed in parallel. | 10-30-2014 |
20150016807 | VIDEO PROCESSING METHOD AND VIDEO APPLIANCE IMPLEMENTING THE METHOD - It is disclosed a video processing method for generating a reverse video stream from an original video stream. Coded frames of the original video stream are buffered and decoded, whereby a reverse video stream is generated wherein the decoded frames are organized according to an order which is opposite to the display order of the original video stream. According to the method, a frame to be displayed is selected ( | 01-15-2015 |
20150104158 | DIGITAL SIGNAL REPRODUCTION DEVICE - A digital signal reproduction device includes an audio decoder configured to decode an audio bit stream to output a resulting audio signal, an audio bit stream analyzer configured to analyze whether or not the audio bit stream contains human voice, a playback speed determiner configured to determine a playback speed based on a result of the analysis by the audio bit stream analyzer, and a variable speed reproducer configured to receive the audio signal and reproduce an audio signal corresponding to the playback speed determined by the playback speed determiner. | 04-16-2015 |