Circuit for detecting the occurrence of a plurality of signals i

Details Circuit for detecting the occurrence of a plurality of signals i Circuit for detecting the occurrence of a plurality of signals i

1985-01-28

1985-10-29

Springborn, Harvey E.

Boots, shoes, and leggings

377 55, G06F 300, H03K 2100

Patent

active

045503877

ABSTRACT:
A circuit detects that a plurality of signals are generated in a predetermined sequence. The plurality of signals are applied to address terminals of a memory which has stored therein a predetermined pattern, and a divide-by-N counter (N:positive integer) counts a first data output signal from the memory N times and applies a carry output signal generated as a result thereof to another address terminal of the memory. An output signal of the circuit is derived from a second data output terminal of said memory when the plurality of input signals occur in the predetermined pattern of the memory and the carry signal from the counter is applied to the memory.

REFERENCES:
patent: 3930142 (1975-12-01), Meier
patent: 4040025 (1977-08-01), Morrill, Jr. et al.
patent: 4099048 (1978-07-01), Eichenlaub
patent: 4250562 (1981-02-01), Haag et al.
patent: 4301513 (1981-11-01), Haag et al.
patent: 4303987 (1981-12-01), Haag et al.
patent: 4475237 (1984-10-01), Glasby
patent: 4490847 (1984-12-01), Aleksander et al.

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