Logic gates with controllable time delay

Details Logic gates with controllable time delay Logic gates with controllable time delay

1990-12-20

1992-10-13

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307355, 307455, 307592, H03K 1923, H03K 522, H03K 1920

Patent

active

051553880

ABSTRACT:
Apparatus for introduction of a controllable time delay in the transition of a logic device output signal from a first logical level to a second logical level, in response to change of an input signal, or the difference of two input signals from a third logical level to a fourth logical level, delivered to the logic device. In a first embodiment, a limiting amplifier receives an input signal S.sub.in and a threshold signal V.sub.T at its two terminals and forms an amplified difference output signal S.sub.out. A selected voltage level signal V.sub.L and S.sub.out are received at a signum function module and the output signal sgn(S.sub.out -V.sub.L) is formed and issued. The signum output signal is multiplied by a controllable real number m and is added to V.sub.L to form the threshold signal V.sub.T. The desired output signal S.sub.out makes a transition between the first and second logical levels, with a time delay that is controllable by choice of the number m. In a second embodiment, which also uses a signum function, two input signals, S.sub.in,1 and S.sub.in,2, give rise to two output signals, S.sub.out,1 and S.sub.out,2, and the difference signal S.sub.out,1 -S.sub.out,2 makes a transition between two logical levels with a time delay that depends controllably on choice of the number m.

REFERENCES:
patent: 4680480 (1987-07-01), Hopta
patent: 4714841 (1987-12-01), Shoji et al.
patent: 4737663 (1988-04-01), Varadarajan
patent: 4806791 (1989-02-01), Mizuide
patent: 4902916 (1990-02-01), Cecchi et al.
patent: 4928025 (1990-05-01), Kokado
patent: 5028815 (1991-07-01), Van De Plassche

Affiliated with

Also associated with

Rating

Logic gates with controllable time delay does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Logic gates with controllable time delay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logic gates with controllable time delay will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1303122