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This page is updated frequently with new Codec-related patents. Subscribe to the Codec RSS feed to automatically get the update: related Codec RSS feeds.

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Date/App# patent app List of recent Codec-related patents
04/17/14
20140106729
 Method, apparatus, and media gateway for codec rate adjustment patent thumbnailnew patent Method, apparatus, and media gateway for codec rate adjustment
The present invention discloses a method for codec rate adjustment. A media gateway (mgw) determines whether an initial codec rate of a first interface is consistent with an initial codec rate of a second interface or an initial codec rate of a third interface, where the first interface is an a interface, the second interface is an nb interface, and the third interface is an lu interface; when determining that the initial codec rate of the first interface is inconsistent with the initial codec rate of the second interface or the initial codec rate of the third interface, the mgw adjusts the initial codec rate of the second interface or the initial codec rate of the third interface to the initial codec rate of the first interface.
04/17/14
20140105279
 Image encoding apparatus and image encoding method patent thumbnailnew patent Image encoding apparatus and image encoding method
An image analyzer divides an input image into first blocks in a coding unit and generates analysis information associated with intra-frame prediction of the input image for each first block. An intra-frame predictor divides the input image into second blocks in a predictive unit, and performs the intra-frame prediction to generate the prediction residual of each second block.
04/17/14
20140105041
 Method and apparatus for packet loss rate-based codec adaptation patent thumbnailnew patent Method and apparatus for packet loss rate-based codec adaptation
A method, an apparatus, and a computer program product for wireless communication are provided where, at a first wireless node, a weighted average of a frame loss rate is determined for a plurality of frames transmitted from a second wireless node using a first codec; feedback is transmitted to the second wireless node based at least in part on the frame loss rate; and one or more frames are received from the second wireless node using a second codec, responsive to transmitting the feedback. Also, transmitting from a first wireless node a plurality of frames to a second wireless node using a first codec; receiving frame loss rate information from the second wireless node responsive to the transmitting; selecting a second codec, based at least in part on the frame loss rate information, and transmitting a second plurality of frames to the second wireless node using the second codec..
04/17/14
20140104083
 Two-dimensional run-length limited codec with protection words and method for using same patent thumbnailnew patent Two-dimensional run-length limited codec with protection words and method for using same
The invention provides a two-dimensional run-length limited (rll) (1,3) code method and apparatus. The codec comprises an encoder and a decoder comprising a data buffer and grouping module, a two-dimensional code word generating module, a two-dimensional word unit page constructing module, a two-dimensional code word write array module, and a protection word stuffing module.
04/10/14
20140101328
 System and method for optimizing a communication session between multiple terminals involving transcoding operations patent thumbnailSystem and method for optimizing a communication session between multiple terminals involving transcoding operations
System and method for optimizing a transcoding session between multiple terminals are disclosed. The method determines properties of the transcoding session, including a number of terminals participating in the transcoding session, media characteristics supported by each terminal, a measure of performance of the transcoding session to be optimized, and optionally a proportion of time involved in the transcoding session for each terminal.
04/10/14
20140100856
 Apparatus and method for coding and decoding multi object audio signal with multi channel patent thumbnailApparatus and method for coding and decoding multi object audio signal with multi channel
Provided are an apparatus and method for coding and decoding a multi object audio signal with multi channel. The apparatus includes: a multi channel encoding means for down-mixing an audio signal including a plurality of channels, generating a spatial cue for the audio signal including the plurality of channels, and generating first rendering information including the generated spatial cue; and a multi object encoding unit for down-mixing an audio signal including a plurality of objects, which includes the down-mixed signal from the multi channel encoding unit, generating a spatial cue for the audio signal including the plurality of objects, and generating second rendering information including the generated spatial cue, wherein the multichannel encoding unit generates a spatial cue for the audio signal including the plurality of objects regardless of a coder-decoder (codec) scheme the limits the multi channel encoding unit..
04/10/14
20140099966
 Network node, terminal, bandwidth modification determination method and bandwidth modification method patent thumbnailNetwork node, terminal, bandwidth modification determination method and bandwidth modification method
The objective of the present invention is to suppress deterioration of call quality caused by transcoding without interrupting a call even if a codec used by one of the terminals during communication is changed. A modification determination unit, in the case of detecting a modification of a codec used by one terminal of two terminals, determines whether or not to constrain the bandwidth of the first codec using a first codec of the other terminal and a second codec after modification by the first-mentioned one of the terminals.
04/10/14
20140098861
 Architecture for hybrid video codec patent thumbnailArchitecture for hybrid video codec
A method for video encoding comprising transforming a plurality of pixels to generate a first plurality of transform coefficients, quantizing the first plurality of transform coefficients to generate a plurality of quantized transform coefficients, computing a plurality of prediction pixels based on a plurality of reconstructed pixels which are prediction references for the plurality of pixels, transforming the plurality of prediction pixels to generate a second plurality of transform coefficients, and computing a plurality of prediction residual coefficients as a difference between the plurality of quantized transform coefficients and the second plurality of transform coefficients.. .
04/10/14
20140098189
 Prediction parameter inheritance for 3d video coding patent thumbnailPrediction parameter inheritance for 3d video coding
A three-dimensional (3d) video codec encodes multiple views of a 3d video, each including texture and depth components. The encoders of the codec encode video blocks of their respective views based on a set of prediction parameters, such as quad-tree split flags, prediction modes, partition sizes, motion fields, inter directions, reference indices, luma intra modes, and chroma intra modes.
04/03/14
20140091642
 Device and method for controlling the polarity of a microphone of a terminal device patent thumbnailDevice and method for controlling the polarity of a microphone of a terminal device
A device for controlling the polarity of a microphone of a portable terminal includes: a microphone that includes a current control element that is connected between a first polarity terminal and a second polarity terminal; first and second connection terminals that are connected to the first polarity terminal and the second polarity terminal of the microphone; a control unit that detects the level of at least one of the first and second connection terminals and determines whether the polarity of the microphone has been normally connected; a codec that is connected to a first polarity terminal and a second polarity terminal and codes audio signals; and a polarity adjusting unit that is connected between the first and second connection terminals and the first and second polarity terminals of the codec, and switches the outputs of the first and second connection terminals under the control of the control unit in the case of an abnormal connection, so as to be connected to the codec to align polarity.. .
03/27/14
20140088974
Apparatus and method for audio frame loss recovery
A method and apparatus provides for frame loss recovery following a loss of a frame in an audio codec. The lost frame is identified.
03/27/14
20140086564
Decoding interdependent frames of a video for display
A module may provide codec-independent services including determining frame display order, frame dependency sets, and queuing the dependency frames in advance so as to enable display of a video. The module enables a video to be played forwards or backwards at a variety of playback speeds from any position within the video.
03/27/14
20140086321
High dynamic range codecs
A method for encoding high dynamic range (hdr) images involves providing a lower dynamic range (ldr) image, generating a prediction function for estimating the values for pixels in the hdr image based on the values of corresponding pixels in the ldr image, and obtaining a residual frame based on differences between the pixel values of the hdr image and estimated pixel values. The ldr image, prediction function and residual frame can all be encoded in data from which either the ldr image of hdr image can be recreated..
03/27/14
20140086304
Histogram segmentation based local adaptive filter for video encoding and decoding
Reconstructed picture quality for a video codec system may be improved by categorizing reconstructed pixels into different histogram bins with histogram segmentation and then applying different filters on different bins. Histogram segmentation may be performed by averagely dividing the histogram into m bins or adaptively dividing the histogram into n bins based on the histogram characteristics.
03/13/14
20140074485
Efficient and scalable parametric stereo coding for low bitrate audio coding applications
The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by extraction of stereo-image describing parameters at the encoder side, which are transmitted and subsequently used for control of a stereo generator at the decoder side.
03/13/14
20140074484
Encoder and decoder driver development techniques
A codec architecture including an audio wave driver and a coded topology driver. The audio wave driver is communicatively coupled to an audio engine and an analog audio codec.
03/13/14
20140072043
Video deblocking filter strength derivation
Codecs may be modified to consider weighting and/or illumination compensation parameters when determining a deblocking filter strength that is to be applied. These parameters may be useful for recording illumination changes, such as fades, cross-fades, flashes, or light source changes, which allows these illumination changes to displayed during playback using the same reference frame data which different weighting and/or illumination compensation parameters applied.
03/13/14
20140071924
Circuit switched domain codec list for single radio voice call continuity
A circuit switched (cs) domain codec list for single radio voice call continuity (sr-vcc) is provided. A apparatus providing such a list can include preparing a list of include preparing a list of circuit switched capabilities of a terminal device, sending the list to a network device during attachment, receiving the list at the network device, storing the list in the network device, sending the list to a second network device, receiving the list at the second network device, and using the list in handing over the terminal device to the second network device..
03/06/14
20140067405
Adaptive audio codec selection during a communication session
A method for adaptive audio codec selection during a communication session is disclosed. The method can include negotiating a set of audio codecs for use during the communication session.
03/06/14
20140064611
Classification and encoder selection based on content
In various embodiments, methods and systems are disclosed for dynamic runtime implementation and end-to-end biased tuning of a two stage image classification system based on a decision function that uses network packet sizes and multiple image characteristics to determine the selection of an encoding codec to reduce overall network bandwidth consumption.. .
03/06/14
20140063183
Method of processing multi-view image and apparatus for executing the same
A method of processing a multi-view image, and a multi-view image processing apparatus for performing the method are provided. The multi-view image processing apparatus includes a first video codec module which is configured to output first image processed data as a result of processing a first image signal provided from a first image source, and to generate sync information at each predetermined time, and a second video codec module which is configured to output second image processed data as a result of processing a second image signal provided from a second image source, using part of the output first image processed data according to the sync information.
03/06/14
20140062742
Sampling circuit, a/d converter, d/a converter, and codec
An a/d converter comprising: a sampling circuit including a continuous section, a sampling and holding section for intermittently sampling an input signal based on an analog signal input from the continuous section to hold and transfer the sampled signal, and a digital section for outputting a signal transferred from the sampling and holding section as a digital signal; and a control circuit for supplying a clock signal in which jitter is not added to the continuous section and supplying a clock signal in which the jitter is added to the sampling and holding section.. .
03/06/14
20140062741
Sampling circuit, a/d converter, d/a converter, and codec
A sampling circuit includes a continuous section which is a circuit for transmitting a continuous signal; a digital section for transmitting a signal which is sampled and quantized; and a sampling and holding section for transmitting a signal which is sampled but not quantized between the continuous section and the digital section. The sampling and holding section includes capacitors for accumulating charge generated by an input signal and plural switches for accumulating the charge in the capacitors.
02/27/14
20140059619
Video and digital multimedia aggregator content coding and formatting
A video and digital multimedia aggregator includes a content decoder, coder (codec) and formatter. The codec formatter receives coding and formatting requests that characterize input source content and desired output target content.
02/27/14
20140056296
Bandwidth management and codec negotiation based on wan topology
A system for bandwidth management and codec negotiation, according to one embodiment of the present invention comprises: a configuration storage module having supported codecs storage, codec lists and preferred site settings storage, and a call manager having an extension module, a trunk module, a location service engine, a codec manager, a bandwidth manager, and a media manager. The codec manager and the bandwidth manager used for negotiating a codec for a call between two endpoints.
02/20/14
20140051455
Method to take mobile station preference for channel type into consideration when performing codec negotiation
Controlling establishment of a connection between an originating subscriber connected via an originating radio network to a communication network and a terminating subscriber connected via a terminating radio network to the communication network. The connection is established between originating payload node and terminating payload node employing a common coding scheme.
02/20/14
20140049603
Compatible three-dimensional video communications
Information for a video stream indicating whether the video stream includes stereoscopic three-dimensional video data can be provided to a display device. This information allows the device to determine whether to accept the video data and to properly decode and display the video data.
02/13/14
20140047253
Multimedia processing system and method of operating the same
The multimedia processing system includes a plurality of first units including a cpu and a top domain; a storage domain configured to store a plurality of multimedia data; a multimedia codec domain configured to decode segments of target multimedia data received from the storage domain and to output decoded segments according to control of the cpu or the top domain; a system bus configured to connect the plurality of first units, the storage domain, and the multimedia codec domain with one another; and an alive domain configured to control power supply to the plurality of first units, the storage domain, the multimedia codec domain, and the system bus and to receive a signal from a user.. .
02/13/14
20140044285
Audio controller
Described herein is a multi-host computing system (100) having multiple host processors running different operating systems. In one implementation, a method of playing audio streams received from a plurality of hosts of a multi-host computing system (100), the method comprising receiving a second audio stream from a second host, and changing audio stream parameters associated with the second audio stream from second host to match the corresponding parameter values associated with a first audio stream received from a first host to generate an updated second audio stream.
02/13/14
20140044199
Method, notably for optimizing the compression of a video and/or audio file, using a codec assigning a weight in bits per second to the corresponding compressed file, and associated system
A method for compressing a stream by means of a codec (c), provided for assigning to a compressed stream an encoding throughput (q) measured in bits per second, using a pre-filter (x1) replacing in the header (t1) of the original stream, the restoration frequency (r) with a frequency equal to the product (r×k) of the restoration frequency (r) by a coefficient (k) and then for retransmitting the thereby filtered stream (fx1) to the codec; the post-filter (x2) replacing the restoration frequency (r) into the header (tx2) of a stream (fx2) resulting from the encoding of the pre-filtered stream (fx1) by the codec c.. .
02/06/14
20140040682
Method and system for symbol error rate estimation and sector quality measurement
A probabilistic approach of symbol error estimation is disclosed. The probabilistic approach of symbol error estimation reflects the number of symbol errors more precisely than the number of unsatisfied checks.
02/06/14
20140040613
Streaming system and method
A streaming system includes an authoring unit (2), a stream server (3) and a client terminal (5). The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an rtp packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet.
01/23/14
20140023285
Decoder performance through quantization control
A codec includes an encoder having a quantization level generator that defines a quantization level specific to a block of values (e.g., transform coefficients), a quantizer that quantizes the block of transform coefficients according to the block-specific quantization level, a run-length encoder, and an entropy encoder. The quantization level is defined to result in at least a predetermined number (k) of quantized coefficients having a predetermined value.
01/23/14
20140023284
Decoder performance through quantization control
A codec includes an encoder having a quantization level generator that defines a quantization level specific to a block of values (e.g., transform coefficients), a quantizer that quantizes the block of transform coefficients according to the block-specific quantization level, a run-length encoder, and an entropy encoder. The quantization level is defined to result in at least a predetermined number (k) of quantized coefficients having a predetermined value.
01/23/14
20140023197
Scalable downmix design for object-based surround codec with cluster analysis by synthesis
In general, techniques are described for grouping audio objects into clusters. In some examples, a device for audio signal processing comprises a cluster analysis module configured to, based on a plurality of audio objects, produce a first grouping of the plurality of audio objects into l clusters, wherein the first grouping is based on spatial information from at least n among the plurality of audio objects and l is less than n.
01/23/14
20140023196
Scalable downmix design with feedback for object-based surround codec
In general, techniques are described for grouping audio objects into clusters. In some examples, a device for audio signal processing comprises a cluster analysis module configured to group, based on spatial information for each of n audio objects, a plurality of audio objects that includes the n audio objects into l clusters, where l is less than n, wherein the cluster analysis module is configured to receive information from at least one of a transmission channel, a decoder, and a renderer, and wherein a maximum value for l is based on the information received.


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Codec topics: Pattern Recognition, Video Processing, Ip Multimedia Subsystem, Electronic Device, Image Processing, Demultiplex, Telecommunication, Circuit Switch, Circuit Switched, Allocation, Telecommunications, Communications, Multimedia, Video Play, Communication Channel

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