Invention Grant
US07661059B2 High performance turbo and Viterbi channel decoding in digital signal processors
有权
数字信号处理器中的高性能Turbo和Viterbi通道解码
- Patent Title: High performance turbo and Viterbi channel decoding in digital signal processors
- Patent Title (中): 数字信号处理器中的高性能Turbo和Viterbi通道解码
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Application No.: US09923225Application Date: 2001-08-06
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Publication No.: US07661059B2Publication Date: 2010-02-09
- Inventor: Stephen J. Plante , Zvi Greenfield
- Applicant: Stephen J. Plante , Zvi Greenfield
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Goodwin Procter LLP
- Main IPC: H03M13/03
- IPC: H03M13/03
Abstract:
A digital signal processor performs turbo and Virterbi channel decoding in wireless systems. The computation block of the digital signal processor is provided with an accelerator for executing instructions associated with trellis computations. An ACS instruction performs trellis computations of alpha and beta metrics. Multiple butterfly calculations can be performed in response to a single instruction. A TMAX instruction is used to calculate the log likelihood ratio of the trellis.
Public/Granted literature
- US20030028845A1 High performance turbo and viterbi channel decoding in digital signal processors Public/Granted day:2003-02-06
Information query
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