Invention Grant
US08276053B2 Decoding circuit operating in response to decoded result and/or a plurality of viterbi target levels with pattern dependency
有权
响应于解码结果操作的解码电路和/或具有模式依赖性的多个维特比目标级别
- Patent Title: Decoding circuit operating in response to decoded result and/or a plurality of viterbi target levels with pattern dependency
- Patent Title (中): 响应于解码结果操作的解码电路和/或具有模式依赖性的多个维特比目标级别
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Application No.: US12614431Application Date: 2009-11-08
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Publication No.: US08276053B2Publication Date: 2012-09-25
- Inventor: Chih-Ching Yu
- Applicant: Chih-Ching Yu
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Main IPC: H03M13/03
- IPC: H03M13/03
Abstract:
A decoding circuit includes: a level adjuster with pattern dependency arranged to generate a plurality of Viterbi target levels with pattern dependency; and a Viterbi decoder arranged to perform Viterbi decoding according to the Viterbi target levels with pattern dependency. A decoding circuit includes a Viterbi decoder arranged to perform Viterbi decoding, and the Viterbi decoder includes a branch metric generator arranged to generate a plurality of branch metrics with pattern dependency according to an input of the Viterbi decoder and a plurality of Viterbi target levels with pattern dependency. In particular, the branch metric generator includes: a plurality of branch metric generation paths arranged to generate a plurality of intermediate values according to the input of the Viterbi decoder and the Viterbi target levels with pattern dependency, respectively; and a selection unit for selecting a portion of the intermediate values as the branch metrics with pattern dependency.
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