Communications: electrical – Digital comparator systems
Patent
1975-02-10
1976-04-06
Fears, Terrell W.
Communications: electrical
Digital comparator systems
307291, 328 37, 328 42, G11C 1300
Patent
active
039493849
ABSTRACT:
A synchronous shift register has serial and parallel data inputs and a basic position input. The individual stages of the shift register are each constructed with a master-slave flip-flop which is fed back by way of a majority decision element. To the set and reset inputs of the storage elements an additional majority decision circuit is connected by which the stages are connected in series and over which the input and output, respectively, of data takes place. The synchronous shift register requires little construction effort and serves as a safety circuit system. In a safety circuit system dual channel processing is provided. If the processing takes place accurately, out of phase (anti-phase) signals appear in the channels.
REFERENCES:
patent: 3641511 (1972-02-01), Cricchi et al.
Fears Terrell W.
Siemens Aktiengesellschaft
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