Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Phase shift by less than period of input
Patent
1995-12-06
1997-07-29
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Phase shift by less than period of input
327239, 327295, H03K 515
Patent
active
056525354
ABSTRACT:
A non-overlapping signal generation circuit comprising a NOR gate for NORing a chip select signal and an address signal, an inverter for inverting an output signal from the NOR gate, a first inversion circuit for sequentially inverting an output signal from the inverter by an odd number of times, a second inversion circuit for sequentially inverting the output signal from the inverter by an even number of times, an address transition detector for generating an address transition detect signal in response to the output signal from the inverter, and a non-overlapping signal generator for generating an enable signal and a disable signal in response to the address transition detect signal from the address transition detector and output signals from the first and second inversion circuits, the enable signal and the disable signal non-overlapping with each other. According to the present invention, the enable signal and the disable signal can be generated with their high levels accurately non-overlapping with each other for an active pulse duration of the address transition detect signal.
REFERENCES:
patent: 4417158 (1983-11-01), Ito et al.
patent: 4625126 (1986-11-01), Tinker et al.
patent: 4645947 (1987-02-01), Prak
patent: 5047659 (1991-09-01), Ullrich
patent: 5389831 (1995-02-01), Eisenstadt
patent: 5444405 (1995-08-01), Truong et al.
patent: 5495189 (1996-02-01), Choi
Kim Kyung Yul
Park Jong Hoon
Callahan Timothy P.
Englund Terry L.
LG Semicon Co. Ltd.
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