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公开(公告)号：DE69030073T2
公开(公告)日：1997-09-18
申请号：DE69030073
申请日：1990-12-17
Applicant: IBM
Inventor： PATEL ARVIND MOTIBHAI , SO BUM SUCK , RUTLEDGE ROBERT ANTHONY
Abstract: A method is disclosed for processing, in a signal processing channel, digital values corresponding to a digitized incoming analog signal representative of coded binary data. A state-dependent sequence detection algorithm includes two groups of appropriate functional expressions of digital sample values, which expressions are identical but offset one sample position from each other. During each iterating step with successive pairs of clock cycles, the value of each expression in the said two groups of expressions is precomputed from a preselected number of sample values ahead of a then current sample value; preselected ones of these expression values are compared against an appropriate threshold, which is the same for corresponding expressions of each group, to provide respective binary decision outputs corresponding to each of the two groups; and the current state value then advances to two next successive state values. During precomputation, a preselected greater number of sample values ahead of the current sample is preferably used in a pipelined configuration to allow additional time for precomputing said groups of expressions.
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公开(公告)号：DE69030073D1
公开(公告)日：1997-04-10
申请号：DE69030073
申请日：1990-12-17
Applicant: IBM
Inventor： PATEL ARVIND MOTIBHAI , SO BUM SUCK , RUTLEDGE ROBERT ANTHONY
Abstract: A method is disclosed for processing, in a signal processing channel, digital values corresponding to a digitized incoming analog signal representative of coded binary data. A state-dependent sequence detection algorithm includes two groups of appropriate functional expressions of digital sample values, which expressions are identical but offset one sample position from each other. During each iterating step with successive pairs of clock cycles, the value of each expression in the said two groups of expressions is precomputed from a preselected number of sample values ahead of a then current sample value; preselected ones of these expression values are compared against an appropriate threshold, which is the same for corresponding expressions of each group, to provide respective binary decision outputs corresponding to each of the two groups; and the current state value then advances to two next successive state values. During precomputation, a preselected greater number of sample values ahead of the current sample is preferably used in a pipelined configuration to allow additional time for precomputing said groups of expressions.
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公开(公告)号：SG43712A1
公开(公告)日：1997-11-14
申请号：SG1996000085
申请日：1994-12-08
Applicant: IBM
Inventor： PATEL ARVIND MOTIBHAI , RUTLEDGE ROBERT ANTHONY , SO BUM SUCK
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