Intel Corporation

Zhichong Chen

Qiang Li

Jinfeng Zhou

Liu Yang

Jianbin He

Yinglai Xi

Jumei Li

Dong Li

An in-loop filtering acceleration circuit applied in a video codec system supporting the H.264 standard and the VC-1 standard is provided. The circuit includes multiple one-dimensional (1D) filters configured to perform a filtering process; and a filter selection unit configured to select one of the 1D filters according to the value of the boundary strength to perform the filtering processing to the reconstructed macroblock. The in-loop filtering acceleration circuit further divides the reconstructed macroblock into multiple 8&#xd7;8 blocks and multiple 4&#xd7;4 blocks, performs the filtering process to horizontal edges of the 8&#xd7;8 blocks the reconstructed macroblock row by row from bottom to top, and performs the filtering process to horizontal edges of the 4&#xd7;4 blocks row by row from top to bottom.

Motion estimation and in-loop filtering method and device thereof

A mobile phone device, a radio frequency transceiver circuit and an impedance adjusting device. The present invention discloses a mobile phone device. The mobile phone device comprises a baseband processor, an antenna, a duplexer and a radio frequency transceiver circuit. The antenna is used to receive and send radio frequency signals. The duplexer is electrically connected to the antenna. The radio frequency transceiver circuit is connected to the baseband processor and the duplexer, respectively. The radio frequency transceiver circuit comprises a first power amplifier and an impedance adjusting device. The first power amplifier has a first output impedance. The impedance adjusting device is electrically connected between the first power amplifier and the duplexer, and comprises at least one switch, wherein the baseband processor is connected to and control the at least one switch of the impedance adjusting device to adjust an impedance value of the impedance adjusting device, such that a first load impedance of the first power amplifier and the first output impedance match one another.

Mobile device, radio transceiver circuit, and impedance adjustment device

The invention provides a video codec. In one embodiment, the video codec is coupled to an outer memory storing a reference frame, and comprises an interface circuit, an in-chip memory, a motion estimation circuit, and a controller. The interface circuit obtains in-chip data from the reference frame stored in the outer memory. The in-chip memory stores the in-chip data. The motion estimation circuit retrieves search window data from the in-chip data with a search window, and performs a motion estimation process on a current macroblock according to the search-window data. The controller shifts the location of the search window when the current macroblock is shifted, marks a macroblock shifted out from the search window as an empty macroblock, and controls the interface circuit to obtain an updated macroblock for replacing the empty macroblock in the in-chip memory from the reference frame stored in the outer memory.

Video codec and motion estimation method

An electronic device for motion compensation is provided. The electronic device has a processing unit configured to perform a decoding program on a video bitstream to output decoding data, wherein the decoding data has a plurality of inter-prediction macroblocks, and the processing unit further generates a plurality of first pixel interpolation values according to the inter-prediction macroblocks which are smaller than a predetermined macroblock size. A motion compensation acceleration circuit is configured to generate a plurality of second pixel interpolation values according to the inter-prediction macroblocks which are larger than or equal to the predetermined macroblocks size, and generate a plurality of reconstructed macroblocks according to the first pixel interpolation values, the second pixel interpolation values, and a plurality of corresponding residue values.

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Beijing, China

Zhichong Chen