Boots – shoes – and leggings
Patent
1977-02-25
1978-04-11
Gruber, Felix D.
Boots, shoes, and leggings
13710119, 307271, 328 39, 328 62, 364701, 364703, 417338, G06F 1546, H03B 1900, G05D 1102
Patent
active
040842460
ABSTRACT:
A pulse generator for producing two output pulse trains A and B where the total number of pulses in both train A and B over a fixed time period remains a constant. The two pulse trains are derived from a master clock which gates a plurality of cascade connected synchronous decade rate multipliers. A selector is set either statically or dynamically to the value N where N is the number of pulses desired in one pulse train out of every M pulses produced by the master clock. A summing means is coupled to all the multipliers to produce a first intermediate pulse train with N pulses for every M clock pulses. A difference means is coupled to each multiplier and to the master clock to produce a pulse in a second intermediate pulse train every time a clock pulse occurs and a pulse in the first pulse train does not occur. A pulse counter is coupled to each intermediate pulse train output to produce two output pulse trains A and B each having a substantially constant pulse frequency.
REFERENCES:
patent: 3219046 (1965-11-01), Waugh
patent: 3229077 (1966-01-01), Gross
patent: 3272217 (1966-09-01), Young
patent: 3398689 (1968-08-01), Allington
patent: 3764790 (1973-10-01), Long et al.
patent: 3866129 (1975-02-01), Cornelissen
patent: 3885142 (1975-05-01), Ninke et al.
patent: 3992612 (1976-11-01), Dunn
Crane J. D.
Giarratana S. A.
Gruber Felix D.
Masselle F. L.
The Perkin-Elmer Corporation
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