Coded data generation or conversion – Digital code to digital code converters – Serial to parallel
Patent
1990-03-28
1992-10-13
Williams, Howard L.
Coded data generation or conversion
Digital code to digital code converters
Serial to parallel
375106, H03M 900
Patent
active
051554860
ABSTRACT:
An asynchronous serial data receiver utilizes plural samples of each data bit in a word to assure detection and reading of the midpoint of each bit to mitigate problems associated with noise and mismatches between the data and sampling rates. To this end, a shift register having plural stages for each bit samples the data stream at a clock rate which is a multiple of the data rate which provides multiple samples of each incoming bit. When the data word is fully read into the shift register the start bit is detected and initiates a parallel transfer of the data word using bit values taken from the midpoint of each bit period.
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Murfet Philip J.
Wallis Christopher N.
International Business Machines - Corporation
Williams Howard L.
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