Pulse or digital communications – Receivers – Automatic baseline or threshold adjustment
Reexamination Certificate
2005-12-20
2005-12-20
Chin, Stephen (Department: 2634)
Pulse or digital communications
Receivers
Automatic baseline or threshold adjustment
C375S229000, C375S233000, C369S059210, C369S059220, C360S065000, C714S809000, C370S523000
Reexamination Certificate
active
06977970
ABSTRACT:
A data reproducing apparatus and method for improving data detection performance by adjusting decision levels used in a data detector. The data reproducing apparatus includes an equalizer which equalizes an input digital signal, a data detector which detects data from the output of the equalizer based on decision levels, and a level decision unit which detects levels corresponding to the decision levels used in the data detector from the output of the equalizer and feeds back corrected decision levels, which adaptively vary with the output level of the equalizer, to the data detector. Accordingly, the detection performance of the data detector is improved.
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JP-8249829; Uchida Narichika; English Machine Translation.
Tory Catpus, “PRML Signal Processing Technology,” Sep. 2, 1996.
Park Hyun-soo
Shim Jae-seong
Chin Stephen
Pathak Sudhanshu C.
Stein, McEwen & Bui LLP
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