Abstract: Embodiments of the present invention multiplex elementary streams without timing information coded to create a transport stream. In some embodiments, ‘n’ number of access units are constructed and pushed into a list one by one. Each access unit is capable of looking ahead to obtain information on timing for the next access unit. A header is constructed by calculating timing information from the topmost access unit of the list. Said header is written in the transport stream and the remaining bytes of the transport stream are filled with data from the said elementary stream. Thus the transport stream is constructed.

Abstract: Systems, apparatuses and methods whereby a base coded video signal is provided to a decoder having a set of post-processing stages. The base coded video signal can be decoded to produce a base decoded video signal. Post-processing of the base decoded video signal can be used to produce an enhanced quality video output signal. Application of a post-processing stage can be implemented according to the capabilities of the decoder and/or the instantaneous operating parameters of the decoder and/or characteristics of a display. A control signal, communicated over a dedicated channel separate from the base coded video signal, can be used initiate and/or aid implementation of a post-processing stage. The control signal can also provide information to assist/manage the decoding of the base coded video signal. The use of additional post-processing stages increases the complexity of an overall decoding process while improving the quality of a resulting reproduced video sequence.

Abstract: A system, apparatus, and method for encoding a plurality of frames in a video stream with temporal scalability. The method includes identifying a non-uniform sequence of time values within a period, determining a frame corresponding to each time value in the non-uniform sequence, within at least one period, and assigning each of the determined frames to one of a plurality of temporal encoding layers.

Abstract: In one method embodiment, providing a multiplex of compressed versions of a first video stream and a first audio stream, each corresponding to an audiovisual (A/V) program, the first video stream and the first audio stream each corresponding to a first playout rate and un-synchronized with each other for an initial playout portion; and providing a compressed version of a second audio stream, the second audio stream corresponding to a pitch-preserving, second playout rate different than the first playout rate, the second audio stream synchronized to the initial playout portion of the first video stream when the first video stream is played out at the second playout rate, the first audio stream replaceable by the second audio stream for the initial playout portion.

Abstract: In one embodiment, a system comprises at least a first video source device, at least a first remote control device, a digital display device comprising logic to receive, in a digital display device, a first video signal from a first video source, extract at least a first metadata from the first video signal, use the first metadata to obtain a second video signal from a second video source, present the first video signal on the digital display device, combine at least a portion of the second video signal and at least a portion of the first video signal to generate a combined video signal, and present the combined video signal on a display.

Abstract: A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture and a nearby video picture is determined. The display time difference is then encoded into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.

Abstract: 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.

Abstract: An apparatus for facilitating robust data transport. In one embodiment, the apparatus includes a first mechanism for selecting plural lattices of an input video signal, processing plural decimated video signals, and time shifting corresponding portions of plural video streams in accordance with a second relative temporal order. A second mechanism changes an initial relative temporal order to the second relative temporal order.

Abstract: An apparatus for facilitating reception of multiple representations of a video signal. In one embodiment, the apparatus includes a mechanism for receiving plural representations of the video signal corresponding to plural decimated versions of the video signal, associating pictures of the received plural representations of the video signal, and outputting pictures corresponding to information from associated pictures in accordance with a relative temporal order.

Abstract: Method and system embodiments of the present invention are directed to information compression by information-coding subsystems within computationally-constrained information sources, efficient information transmission through electronic communications media to information sinks with relatively large computational bandwidths. One embodiment of the present invention is directed to a method and system for low-complexity, mixed-resolution information coding by low-powered, computationally constrained distributed sensors which provide continuous video images through wireless communications to a computer-system information sink where the coded information is decoded.

Abstract: A video transmission method is provided, which includes receiving state information from at least one mobile terminal that intends to perform a video stream service through a wireless network, determining a size of an image by selecting a specified spatial layer bit stream on the basis of the state information of the mobile terminal from a plurality of spatial layer bit streams generated at different bit rates during encoding of the bit stream, selecting a specified time and an SNR layer bit stream by increasing or decreasing time of the image and a layer position of the SNR layer bit stream on the basis of network parameters included in the state information of the mobile terminal, and transmitting the bit stream generated by extracting the specified layer bit stream of the selected layer to the mobile terminal.

Abstract: Disclosed is a server apparatus including a conversion unit which, in case another terminal takes part anew in a group of terminals, during a time of transmitting the copied stream or packet, converts a video frame to a non-predictive frame and transmits the non-predictive frame and transmits a video signal following the non-predictive frame, as it is.

Abstract: An apparatus for adaptive synchronized decoding of digital video may include a processor. The processor may be configured to maintain a next key frame timestamp, decode a plurality of key frames of a video clip, decode a plurality of non-key frames of a video clip which arrive on time, and drop one or more non-key frames until the next key frame if a video frame arrives late and the next key frame is within a calculated drop time window based at least in part on the next key frame timestamp. Corresponding methods and computer program products are also provided.

Abstract: There is provided a video processing device capable of reducing the influence of a disturbance of an input vertical synchronization signal. When the synchronization signal detecting unit detects an input of the input-side vertical synchronization signal at a predetermined cycle, the synchronization signal control unit outputs the input-side vertical synchronization signal, which has been input, as an output-side vertical synchronization signal, and, when the synchronization signal detecting unit detects an input of a next input-side vertical synchronization signal before the predetermined cycle elapses after the output of the output-side vertical synchronization signal, a next input-side vertical synchronization signal input before the predetermined cycle elapses is not output as a next output-side vertical synchronization signal, and an input-side vertical synchronization signal input further next is output as the next output-side vertical synchronization signal.

Abstract: An information processing apparatus includes: accepting means for accepting user's input of specification of a remarkable scene during playback processing of a video content to be recorded on a recording medium or a video content already recorded on a recording medium; setting means for setting a scene corresponding to a timing of accepting the input of specification by the accepting means to a user's remarkable scene; acquiring means for acquiring additional information for generating a display indicating the remarkable scene contents; and display controlling means for controlling generation of the display indicating the remarkable scene contents on the basis of the additional information and display of a list screen including an arrangement of the display indicating the remarkable scene contents for each remarkable scene.

Abstract: A video coding device, such as a video encoder or a video decoder, may be configured to decode a sequence level flag to determine the presence of one or more sub-picture level coded picture buffer (CPB) parameters for a decoding unit (DU) of an access unit (AU) in either in a picture timing supplemental enhancement information (SEI) message or a sub-picture timing SEI message associated with the DU. The coding device may also decode the one or more sub-picture level CPB parameters from the picture timing SEI message or the sub-picture timing SEI message based on the sequence level flag.

Abstract: A video coding device, such as a video decoder, may be configured to decode a buffering period supplemental enhancement information (SEI) message associated with an access unit (AU). The video decoder is further configured to decode a duration between coded picture buffer (CPB) removal time of a first decoding unit (DU) in the AU and CPB removal time of a second DU from the buffering period SEI message, wherein the AU has a TemporalId equal to 0. The video decoder is configured to determine a removal time of the first DU based at least in part on the decoded duration and decode video data of the first DU based at least in part on the removal time.

Abstract: A video coding device, such as a video decoder, may be configured to derive at least one of a coded picture buffer (CPB) arrival time and a CPB nominal removal time for an access unit (AU) at both an access unit level and a sub-picture level regardless of a value of a syntax element that defines whether a decoding unit (DU) is the entire AU. The video coding device may further be configured to determine a removal time of the AU based at least in part on one of the CPB arrival time and a CPB nominal removal time and decode video data of the AU based at least in part on the removal time.

Abstract: A video coding device, such as a video encoder or a video decoder, may be configured to code a sub-picture timing supplemental enhancement information (SEI) message associated with a first decoding unit (DU) of an access unit (AU). The video coding device may further code a duration between coded picture buffer (CPB) removal time of a second DU of the AU in decoding order and CPB removal time of the first DU in the sub-picture SEI message. The coding device may also derive a CPB removal time of the first DU based at least in part on the sub-picture timing SEI message.

Abstract: A method and an apparatus for supporting time shift playback in an adaptive HTTP streaming transmission solution are disclosed. The method includes: sending a live MPD request message to a media server; receiving a response message that includes MPD for a current time period, where the MPD further includes media presentation information for another time period; determining that a moment of a media segment to be requested currently exceeds a time range corresponding to the MPD; acquiring the corresponding MPD according to the media presentation information corresponding to the media segment, and requesting, according to the acquired corresponding MPD, the media segment. In this manner, a client supports time shift playback of a larger time range, and at the same time, the size of the MPD is capable of remaining in an acceptable range.

Abstract: Provided are a method and apparatus for displaying video data without displaying delay in a video decoder which cannot judge the end of a picture. The method includes receiving video data including a picture formed of blocks; extracting an address of a current block in the received video data; and selectively displaying the picture based on the extracted address of the current block.

Abstract: A repeater receives an input signal containing mobile/handheld (M/H) data received in an M/H frame equivalent in size to 20 VSB data frames. Each VSB frame contains an odd VSB field and an even VSB field, and each of the VSB fields includes one field sync segment and 312 data segments. The M/H frame includes main data and M/H data, and the M/H data has more robust coding than the main data. The received input signal is demodulated to produce an MPEG transport steam. Frame registration is used to find data and field syncs in the MPEG transport steam. The trellis encoder is reset prior to M/H training data in to the mobile data stream. The data is VSB modulated, the field syncs are added to the modulated data to reconstruct the M/H frame, and the M/H frame upconverted to an RF output signal, which is retransmitted.

Abstract: Implementations of independent temporally concurrent video stream coding may include generating a sequence of encoded frames by encoding a plurality of input frames, wherein encoding the plurality of input frames may include generating a first plurality of encoded frames based on the plurality of input frames, the first plurality of encoded frames including a first plurality of intra-coded frames and a first plurality of inter-coded frames, and independently generating a second plurality of encoded frames based on the plurality of input frames, wherein the second plurality of encoded frames includes a second plurality of intra-coded frames and a second plurality of inter-coded frames, such that the first plurality of encoded frames and the second plurality of encoded frames are temporally concurrent, and such that the intra-coded frames from the second plurality of intra-coded frames are temporally nonconcurrent with the intra-coded frames from the first plurality of intra-coded frame.

Abstract: The embodiments provide an additional information insertion apparatus for a broadcasting system. The system includes a broadcasting signal transmitter configured to transmit a broadcasting signal along with a data extractor configured to extract a modulated signal by dividing the modulated signal from a modulator of the broadcasting signal transmitter. An additional data generator is configured to extract synchronization of the broadcasting signal from the extracted broadcasting signal, modulate the additional information based on the extracted synchronization, and generate a level of the modulated additional information to be a smaller level than a signal level of the modulated signal by as much as a predetermined value. A data synthesizer is provided to insert the additional data from the data generator into the modulated broadcasting signal.

Abstract: A copyright managing information processing apparatus includes a storage module for storing copyrighted content including audio data; a first topic module for recognizing audio data in content opened to the public by a to-be-opened information processing apparatus, converting the audio data into text data, extracting keywords from the text data, and conducting topic processing using the keywords to create topic information; a second topic module for recognizing audio data in content stored in the storage means, converting the audio data into text data, extracting keywords from the text data, and conducting topic processing using the keywords to create topic information; and a similarity determining module for comparing the topic information generated by the first topic module with that created by the second topic module for thereby determining presence or absence of similarity therebetween.

Abstract: A method for synchronized playback of wireless audio and video is applicable to a playback system. The method for synchronized playback includes steps of receiving and processing multimedia data by the playback system, in which the multimedia data includes video data and audio data; wirelessly transmitting the audio data to a loudspeaker and meanwhile holding the video data for a threshold time; and finishing the transmission of the audio data when the threshold time is reached, so that the video data and the corresponding audio data are synchronously played. The method for synchronized playback can control the delay caused by the wireless audio transmission, thus achieving the objective of synchronously playing the audio and video data.

Abstract: A system and method are used to generate pseudo MPEG information from digital video information. An artificial time stamp module and a data transport device can be used to generate the pseudo MPEG information, including associating an artificial time stamp with the digital video information. This pseudo MPEG information can be decoded as MPEG information.

Abstract: Methods and systems for integrated transcoding on a plurality of data channels to convert one or more data channels from an incoming encoding format to an outgoing encoding format are disclosed.

Abstract: A method of processing a video input which transmits pictures of a first view and pictures of a second view includes: checking the video input to detect if a first picture of one of the first and second views is correctly paired with a second picture of the other of the first and second views for a specific presentation time, and accordingly generating a detecting result; and referring to the detecting result for selectively performing a predetermined processing operation upon the video input.

Abstract: Techniques are described herein that synchronize media streams using time signal(s) from an independent time source. An independent time source is a time source that is independent from (i.e., that is not connected to) an asynchronous data network via which the media streams are transferred. In accordance with the techniques described herein, media server(s) transfer the media streams to client(s) via an asynchronous data network. The independent time source provides the time signal(s) to the media server(s) and/or the client(s). If the time signal(s) are provided to the media server(s), the media server(s) may provide timing information that is based on the timing signal(s) to the client(s). The client(s) use the timing information from the media server(s) and/or the timing signal(s) from the timing source to synchronize the media streams.

Abstract: Apparatus and method for embedding data in initial content having synchronized video and audio, the method comprising defining at least one content segment in the initial content, and altering the video and audio synchronization in the at least one segment in accordance with the data to be embedded, wherein the altered content segment is viewable on a viewing device and the synchronization alteration is imperceptible to a casual viewer. Related apparatus and methods are also described.

Abstract: A reproducing apparatus and method are provided. The apparatus includes an input section; an operation input section; a first storage section; and a control section.

Abstract: An Linear Time Code (LTC) receiver for receiving and decoding a LTC frame of the type used in connection with film and television and accompanying audio includes a first counter that measures the number of reference clock periods within the duration of a bi-phase mark signal interval to yield a timing reference for extracting the payload from the LTC frame. A second counter detects a sync field within the LTC frame to establish the LTC frame direction. A third counter serves to count the number of symbols in the LTC frame. A state machine responsive to the counts of the first, second and third counters, serves to (a) detect a valid synchronization sequence within an incoming LTC frame; (b) determine the LTC frame direction, (c) decode (extract) payload information from the LTC frame; and (d) transfer the payload information in an order determined by the LTC frame direction.

Abstract: A video processing system includes a video encoder that encodes a video stream into an independent video layer stream and a first dependent video layer stream based on a motion vector data or grayscale and color data.

Abstract: Systems and methods for encoding live multimedia content with audio data synchronized with other streams of data, including video data, in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, an encoding system includes multimedia content storage configured to store live multimedia content including audio data and video data, a processor, and a multimedia encoder, wherein the multimedia encoder configures the processor to receive live multimedia content, generate a timeline using the video data, compute a first time window, align the audio data to the video data using the audio data samples and the timeline, measure a synchronization value of the aligned audio data to the video data using the timeline, realign the audio data to the video data when the synchronization value exceeds a threshold value using the timeline, and multiplex the audio data and video data into a container file.

Abstract: An image processing method includes determining a first bandwidth based on original image data; computing a filter coefficient array for implementing frequency characteristics corresponding to a band limitation using the first bandwidth; generating first filtered image data by subjecting the original image data to a filtering process using the first filter coefficient array; deriving an objective image-quality estimation value of the first filtered image data, and computing an allocation coefficient used for determining an optimum bandwidth, based on the objective image-quality estimation value; determining the optimum bandwidth corresponding to the computed allocation coefficient by referring to a table in which a correspondence relationship between the allocation coefficient and the optimum bandwidth is defined; computing an optimum filter coefficient array for implementing the frequency characteristics corresponding to a band limitation using the optimum bandwidth; and generating optimum filtered image dat

Abstract: An implementation exits a power saving mode for fixed and periodic active periods of time to receive a separate burst transmission from a first stream during each of the corresponding active periods of time. The first stream is received at a first-stream burst data rate. The first stream includes data configured to be displayed at a first playback rate that is substantially less than the first-stream burst data rate. During the active periods of time, data is received from a second stream at a second-stream rate. The second stream includes data configured to be displayed at a second playback rate that is substantially the same as the second-stream rate. After receiving each of the burst transmissions from the first stream during the active periods of time, the power saving mode is entered for corresponding fixed and periodic power-saving periods of time while waiting for another burst from the first stream.

Abstract: An image is divided into blocks, and each of the blocks is categorized as a block of interest or a block of non-interest. In signal processing in a camera signal processing unit (9), a block of interest is controlled using a parameter given by a main control unit (22) such that a larger amount of high-frequency components are left than in a block of non-interest. A compression/decompression processing unit (19) allocates a large amount of codes to a block of interest to effectively suppress a deterioration of image quality in a region of interest. There is provided an image-sensing apparatus which can compress an image into a limited amount of codes such that any deterioration of image quality is unnoticeable.

Abstract: The claimed subject matter provides systems and/or methods that facilitate describing, communicating, utilizing, etc. a frame dependency structure in connection with real time video communication. For example, a protocol can be employed to communicate the dependency structure from a sender to a receiver. Moreover, a mechanism on a receiver side can detect frame(s) that will be rendered with artifacts if displayed due to previous frame loss; this mechanism can leverage receiver side knowledge concerning the dependency structure of the frames.

Abstract: An information processing device configured to process moving image data includes a plurality of calculating units configured to transform a frame rate by subjecting two pieces of frame data to addition and subtraction; and a control unit configured to control the plurality of calculating units to subject each frame data of the moving image data to at least one of the addition and the subtraction by the number of times necessary for transforming the frame rate of the moving image data into a desired rate.

Abstract: A multi-decoder includes a plurality of decoders for different types of coding, an output buffer which stores and outputs the decoded output signal output from the decoders, an output switcher which selectively outputs the decoded output signal of the output buffer, and a controller which determines a coding scheme of the stream based on data of the header area of a stream inputted to each of the decoders, and outputs the stream to the corresponding decoder based on the determination result, and controls the output switcher to switch a decoded output signal of a sender to another decoded output signal, when inputting a stream switching signal.

Abstract: A method and circuitry for processing a video signal corresponding to a source synchronous video broadcast which corresponds to a selected channel which is one of a plurality of channels of a broadcast spectrum. In one aspect, the method includes generating digitized data of the video signal, which corresponds to the source synchronous video broadcast, using a local clock signal having a frequency which is different from the frequency of the source clock of the video broadcast; generating video data using the digitized data of the video signal; generating formatted video data blocks by arranging the video data into one or more lines or frames of video data; generating temporal reference signals wherein each temporal reference signal is associated with at least one formatted video data block.

Abstract: A data reception unit 21 of a reception device 20n receives calibration data to detect a data reception state or a clock reception state in the reception device 20n from a data transmission unit 11 of a transmission device 10. A decoder unit 24 causes a transmission unit 26 to send out calibration sample data that a sampler unit 23 obtained by sampling calibration data to the transmission device 10. A control unit 15 of the transmission device 10 detects a data reception state or a clock reception state in the reception device 20n based on calibration sample data received from the reception device 20n and controls the data transmission unit 11 and a clock transmission unit 12 based on the detection result.

Abstract: Techniques for synchronizing audio and video content for presentation to a user at a same rate are provided. Streams of content from two or more sources of media, each media source having an associated clock, are synchronized by a synchronizing component and processor with respect to a master clock. As well, techniques are provided for ensuring that output devices are synchronized at preview startup. That is, such techniques ensure that the output devices start playing the media at the same time as well as at the same rate.

Abstract: A request may be received to navigate through a bitstream by a navigation time, the bitstream having a plurality of data sequences, each of the plurality being associated with a different presentation time of the bitstream. The navigation time may be correlated with a number of bytes from a current location of the bitstream to a target location of the bitstream. The bitstream may be navigated to reach the target location within the bitstream, based on the number of bytes. Navigation may then occur from an initial start code proximate to the target location within the bitstream to a further start code until a final start code is reached that has a timestamp which, compared to a timestamp of the current location, indicates a presentation time that corresponds to the navigation time and thereby satisfies the request.

Abstract: Automated PilotPN code conflict resolution using an access point with the assistance of one or more access terminals is disclosed. An exemplary method includes determining a set of access points, as well as determining a set of PilotPN codes used by the set of access points. Detection is then made concerning whether at least two access points of the set of access points have conflicting PilotPN codes. A first PilotPN code is allocated to one of the at least two access points having conflicting PilotPN codes. Additionally, one or more other PilotPN codes, which are distinct from the first PilotPN code, are allocating to remaining access points of the at least two access points having conflicting PilotPN codes. Corresponding apparatus and other exemplary methods are also disclosed.

Abstract: In one embodiment, a network device analyzes an encoded stream to identify a timing value included in a packet before a splice point. Next, the device determines a difference between identified timing value and a timing value included in a packet of the encoded segment to be spliced. In conjunction with splicing, the network device formats timing values of packets according to the determined difference, which improves play out of the spliced stream.

Abstract: Disclosed are a method of encoding/decoding video data and a device thereof. The device includes a toolbox, which stores a plurality of functional units, a reconstruction unit, which reconstructs a decoder description by receiving a compressed decoder description, a decoder description parsing unit, which converts the decoder description to an XML-based decoder description, an ADM generating unit, generates an abstract decoding model (ADM) by using the XML-based decoder description, and a decoding solution, which loads the plurality of functional units stored in the toolbox by using the ADM or the XML-based decoder description to decode input data to video data. With the present invention, it is possible to reconstruct and reassemble a decoder in various forms by using a decoder description.

Abstract: A method and apparatus for synchronization of a moving picture experts group (MPEG) transport stream, which minimizes an initial delay are provided. A packet synchronization unit and a mode of the packet synchronization unit to are initialized to “0”. Values of sync words are stored by shifting values of a sync word register when the sync words have been received and the received sync word is compared with predetermined code words As a result of the comparison, a determination is made as to whether a bit difference between the sync words and the predetermined code words exceeds a predetermined threshold value.

Abstract: A multimedia processing system for processing a program stream containing a program clock reference information. The system comprises a clock generator, a timer, a modifier, a processing unit, a parser and a compensator. The clock generator generates a clock signal. The timer receives the clock signal and generates a time information. The modifier incorporates a timing reference information into the program stream, wherein the timing reference information is provided according to the time information and the program clock reference information. The processing unit processes the program stream to generate a data stream incorporated with the timing reference information. The parser extracts the timing reference information from the data stream. And, the compensator generates a control signal according to the timing reference information. Wherein the clock generator receives the control signal and adjusts the clock signal.