Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1994-10-14
1997-05-20
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
327374, H03B 100
Patent
active
056315899
ABSTRACT:
A transition control circuit (2) for controlling the transitions of an output signal, at an output node (8) of a driver circuit, in dependence on the logic state of an input signal at an input node (10). The output signal being switchable between a first logic state and a second logic state. The transition control circuit (2) comprises first means (16) and second means (14). The first means (16) is enabled when the output signal has the first logic state and the input signal has the second logic state, and is disabled when the output signal has the second logic state or the input signal has the first logic state. Once enabled, the first means (16) couples the output node (8) to a first supply line (GNDA) whereby the output signal switches to the second logic state. The second means (14) is enabled when the output signal has the second logic state and the input signal has the second logic state, and is disabled when the output signal has the first logic state or the input signal has the first logic state. Once enabled, the second means (14) couples the output node to a second supply line (GNDB) whereby the output signal is held in the second logic state until the next transition of the input signal.
REFERENCES:
patent: 4477741 (1984-10-01), Moser, Jr.
patent: 4731553 (1988-03-01), Van Lehn et al.
patent: 4928023 (1990-05-01), Marshall
patent: 5149991 (1992-09-01), Rogers
patent: 5332932 (1994-07-01), Runaldue
Afek Yachin
Berger Ricardo
Tordjman Claudine
Callahan Timothy P.
Dover Rennie William
Ingrassia Vincent B.
Motorola Inc.
Wolin Harry A.
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