MAGNUM SEMICONDUCTOR, INC.
|MAGNUM SEMICONDUCTOR, INC. Patent applications|
|Patent application number||Title||Published|
|20140219331||APPARATUSES AND METHODS FOR PERFORMING JOINT RATE-DISTORTION OPTIMIZATION OF PREDICTION MODE - Examples of apparatuses and methods for performing a joint RD optimization operation are described herein. A method may include successively encoding a macroblock using a plurality of coding modes. The method may further include determining a corresponding rate-distortion cost to encode the macroblock based on a corresponding coding mode of the plurality of coding modes. The method may further include determining a corresponding estimated rate-distortion cost to encode one or more macroblocks affected by encoding the macroblock using the corresponding coding mode. The method may further include selecting a coding mode of the plurality of coding modes having a lowest corresponding joint rate-distortion cost. The corresponding total rate-distortion cost comprises the corresponding rate-distortion cost to encode the macroblock and the corresponding estimated rate-distortion cost to encode the one or more of the affected macroblocks.||08-07-2014|
|20140185693||METHODS AND APPARATUSES FOR ADAPTIVELY FILTERING VIDEO SIGNALS - Methods and apparatuses for adaptively filtering video content are disclosed herein. An apparatus may include a filter configured to receive a video signal. The filter may further be configured to perform an up-conversion on a plurality of frames of the video signal to provide a plurality of up-converted frames. The filter may further be configured to filter the plurality of up-converted frames to provide a plurality of filtered frames and to perform a down-conversion operation on the plurality of filtered frames to provide a filtered video signal.||07-03-2014|
|20140119454||RATE-DISTORTION OPTIMIZERS AND OPTIMIZATION TECHNIQUES INCLUDING JOINT OPTIMIZATION OF MULTIPLE COLOR COMPONENTS - Examples of encoders and video encoding are described that include optimizers and techniques for optimizing syntax elements such as transform coefficients. In some examples, multiple color components of a video signal may be jointly optimized by employing a cost calculation using a combination of distortion and/or rate metrics for multiple color components. In some examples, a color transformation may occur and the optimization may take place in a different color domain than encoding. In some examples, distortion metrics used in the cost calculations performed by optimizers are based on structural similarity index.||05-01-2014|
|20140086314||APPARATUSES AND METHODS FOR OPTIMIZING RATE-DISTORTION OF SYNTAX ELEMENTS - Methods and apparatuses for optimizing rate-distortion of syntax elements are disclosed herein. An optimization block may be used in a video encoder and may include a candidate generation block and a best cost block. The optimization block may be configured to generate a plurality of candidates corresponding to respective differential levels. Each of the plurality of candidates may be based, at least in part, on a DC coefficient and provide a respective rate-distortion cost. The best cost block may be coupled to the candidate generation block and may be configured to select a candidate of the plurality of candidates according to a criteria.||03-27-2014|
|20130322466||TRANSPORT STREAM MULTIPLEXERS AND METHODS FOR PROVIDING PACKETS ON A TRANSPORT STREAM - Examples described include transport stream multiplexers that may not need to search for an appropriate source to use to generate a transport stream packet. Instead, the source to use may be indicated by a position (e.g. an entry) in a memory table, e.g. a metadata array. Methods for placing transport stream packets on a transport stream and initializing the metadata array are also described.||12-05-2013|
|20130301699||APPARATUSES AND METHODS FOR ESTIMATING BITSTREAM BIT COUNTS - Examples of methods and apparatuses for estimating bit counts of a bitstream are described herein. An entropy encoder may include a bitstream encoding module and a bit count estimation module. The bitstream encoding module may be configured to encode a plurality of syntax elements according to a first encoding technique. The bit count estimation module may be configured to provide estimated bit counts for encoding the plurality of syntax elements according to a second encoding technique. In at least one embodiment, the bitstream encoding module may be further configured to encode the plurality of syntax elements based on the estimated bit counts.||11-14-2013|
|20130279597||APPARATUSES AND METHODS FOR BITSTREAM BITSTUFFING - Examples of methods and apparatuses for inserting and removing stuffing data in a bitstream described. An encoding system may include an encoder configured to receive a video signal and stuffing data. The encoder may be configured encode the video signal in accordance with an encoding methodology and provide a bitstream based on the encoded video signal and the stuffing data. The stuffing data may include random and/or encrypted data. A decoder may receive a bitstream and remove stuffing data from the bitstream. The decoder may include a padding removal apparatus that may include a slice detection block and a bitstream editor. The slice detection block may be configured to determine locations of stuffing data in a bitstream and provide the locations to the bitstream editor using control signals. The bitstream editor may be configured to remove the stuffing data based on the control signals.||10-24-2013|
|20130259119||APPARATUSES AND METHODS FOR PROVIDING QUANTIZED COEFFICIENTS FOR VIDEO ENCODING - Apparatuses and methods for optimizing rate-distortion costs in a signal are disclosed. An apparatus may comprise a quantization block that may be configured to generate a plurality of candidates for each of a plurality of coefficients. The quantization block may further generate a respective plurality of arcs based, at least in part, on the plurality of candidates. The quantization block may be configured to determine which of the plurality of arcs has a lowest cost using a trellis optimization technique. Fractional bit estimations may be used to calculate rate, and inverse lambda may be used to calculate candidate coefficients.||10-03-2013|
|20130188686||METHODS AND APPARATUSES FOR PROVIDING AN ADAPTIVE REDUCED RESOLUTION UPDATE MODE - Methods and apparatuses for applying adaptive reduced resolution update (RRU) processing are disclosed herein. An apparatus may include an encoder configured to receive a video signal and selectively downsample a first component of the video signal in accordance with a first RRU coding mode and a second component of the video signal in accordance with a second RRU coding mode, based on respective types of the first and second components of the video signal. An apparatus may include a decoder configured to receive an encoded bitstream and provide a recovered residual based on the encoded bitstream. The decoder may be configured to selectively upsample a first component of the recovered residual in accordance with a first RRU mode and to selectively upsample a second component of the recovered residual in accordance with a second RRU mode to provide a reconstructed signal based on signaling mechanisms of the encoded bitstream.||07-25-2013|
Patent applications by MAGNUM SEMICONDUCTOR, INC.