Electrical pulse counters – pulse dividers – or shift registers: c – Shift register – Particular input circuit
Patent
1988-03-04
1989-09-12
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Shift register
Particular input circuit
3072471, 34082587, 34082588, H03K 1903, H04Q 352
Patent
active
048667420
ABSTRACT:
A register circuit comprises a plurality of registers commonly receiving a data signal and selection signals respectively, each of the registers including a first input terminal for receiving the data signal; a second input terminal for receiving a corresponding one of the selection signals; an output terminal for outputting a stored data signal; a storing unit, connected to the output terminal, for storing the data signal; and a control unit, connected to the storing unit, the first input terminal, the second input terminal, and the output terminal, for transferring the data signal to the storing unit when the selection signal is effective and resetting the storing unit when the data signal is already stored in the storing unit and the selection signal is not effective.
REFERENCES:
patent: 3274555 (1966-09-01), Luke
patent: 4045693 (1977-08-01), Ester
patent: 4068215 (1978-01-01), Mukaemachi et al.
patent: 4289976 (1981-09-01), Maly
patent: 4419762 (1983-12-01), Paul
Digital Troubleshooting by Gasperini Copyright 1975, 76, pub. by Movonics Co., pp. 9.3, 9.4, 10.5.
Fujiyama Hiroyuki
Nishikawa Sinji
Fujitsu Limited
Heyman John S.
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