Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Patent
1994-02-28
1997-04-08
Tse, Young T.
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
375290, 360 51, H04L 502, H04L 2706
Patent
active
056195397
ABSTRACT:
A method and apparatus are provided for maximum-likelihood data detection in a partial-response (PR) data channel including a head and disk assembly providing an analog signal coupled to an analog to digital converter (ADC) providing digital samples. A plurality of digital samples are received from the ADC. The received digital samples are applied to a selected first filter and a selected second filter. The first filtered digital samples are applied to a first data detector, and the second filtered digital samples are applied to a second data detector. A predetermined parameter is identified, and at least one of the first and second data detectors is selected responsive to the identified predetermined parameter.
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Coker Jonathan D.
Dolivo Francois B.
Galbraith Richard L.
Hermann Reto J.
Hirt Walter
International Business Machines - Corporation
Pennington Joan
Tse Young T.
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