Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Counter includes circuit for performing an arithmetic function
Patent
1988-05-27
1990-04-03
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Counter includes circuit for performing an arithmetic function
328138, 328140, 377 44, 455154, H03K 526
Patent
active
049146807
ABSTRACT:
A signal distinction circuit comprises a clock signal generating circuit for generating a clock signal whose frequency is longer than that of a pulse signal corresponding to a discrimination signal applied to a counter as an actuating signal; and an arithmetic circuit for operating the pulse signal and the clock signal, and generating an output signal according to the presence or non-presence of the discrimination signal so as to forcibly drive a detecting circuit to which an output signal of the counter is applied, whereby the detecting circuit can be forcibly driven irrespective of the condition of the counter when the discrimination signal is not applied thereto.
REFERENCES:
patent: 3757233 (1973-09-01), Dixon
patent: 4344038 (1982-08-01), Streeter
patent: 4419765 (1983-12-01), Wycoff et al.
patent: 4503397 (1985-03-01), Schultz
patent: 4737984 (1988-04-01), Brown
Ishikawa Tsutomu
Tanno Masaya
Heyman John S.
Sanyo Electric Co,. Ltd.
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