Himax Media Solutions, Inc.

Chien-Chang Lin

Chan-Shih Lin

Frame data stored in an external memory is partitioned into a plurality of macroblocks, and a plurality of access units each comprising at least one macroblock are provided. A plurality of frames are fetched from the external memory by loading the plurality of access units in a predetermined sequence. A current data for decoding a macroblock of the first access unit and a reference data for decoding a macroblock of the second access unit are loaded from the first access unit, and respectively mapped to a first memory group and a second memory group of a circular cache according to the frame width.

Data-mapping method and cache system for use in a motion compensation system

A binary arithmetic decoding device may include a first and second lookup table each receive signal output from a first register. A third lookup table receives signal output from the first lookup table and a fourth lookup table receives signal output from the second lookup table. A first multiplexer receives signal output from the third and fourth lookup tables. A second multiplexer receives signal output from the first and second lookup tables and from the second lookup table where the first and second multiplexers are controlled by a same first signal. The proposed decoder may further include a second register, a first adder, a third adder, and a first comparison module coupled in series and output of the first comparison module is the first signal.

Multi-bin CABAC decision bin decoder

A parallel based 5 bypass bin CABAC decoder may include a 3 bypass bins decoder appropriately coupled to a 2 bypass bins decoder. The 3 bypass bins decoder may have a first input receiving a bitstream, a second input receiving range values, a first output outputting a first bypass bin, a second output outputting a second bypass bin, a third output outputting a third bypass bin, and a fourth output outputting a shifted bitstream to the 2 bypass bins decoder. The 2 bypass bins decoder may have a first input to receive the shifted bitstream, a second input to receive the range values, a first output outputting a fourth bypass bin, and a second output outputting a fifth bypass bin.

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Tainan County, Taiwan

Chien-Chang Lin