Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1983-08-22
1986-05-27
Miska, Vit W.
Communications: electrical
Audible indication
Percussion-type sound producer
340347DD, 340347P, H03K 13175
Patent
active
045918252
ABSTRACT:
A parallel analog-to-digital converter employing a novel binary encoding technique to reduce the errors arising from multiple one-to-zero transitions in comparator outputs. An analog signal to be converted is applied in conventional fashion to any array of comparators, from which are obtained an array of output signals having a transition from ones to zeros at the array position corresponding to the analog signal magnitude. The one-to-zero transition is detected by conventional AND gate circuitry and the resulting one-in-(2.sup.n -1) code is transmitted to encoding logic configured to produce a novel form of binary output code. The code is identical to Gray code in all but its least significant bit position, which alternates between one and zero values in the manner of standard binary code. The new code results in a significant reduction in the magnitude of errors arising from multiple transitions between one and zero in the array of comparator outputs.
REFERENCES:
patent: 3518663 (1970-06-01), Oddo et al.
patent: 3531798 (1970-09-01), Dureau
patent: 3560959 (1971-02-01), Bergey
patent: 3877025 (1975-04-01), Maio
patent: 4058806 (1977-11-01), Madler
patent: 4576543 (1981-06-01), Miller et al.
Heal Noel F.
Miska Vit W.
TRW Inc.
Wallace Robert M.
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