1,7,2,3 Encoding/decoding employing 3/2 frequency division
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United States of America Patent
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-
Apr 18, 1989
Grant Date -
N/A
app pub date -
Nov 5, 1987
filing date -
Nov 5, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An encoding/decoding system for 1,7,2,3 codes employs an oscillator having a frequency f and dividers providing signals at frequencies equal to 1/3 f and 2/3 f. A code converter is responsive to the three signals to encode or decode data. A 3/2 frequency divider employs two D-type flip-flops, an OR gate and an AND gate arranged to respond to an input signal at a frequency f to derive an output signal at a frequency 2/3 f.
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