Ring oscillator circuit microcomputers and IC cards using the sa

Details Ring oscillator circuit microcomputers and IC cards using the sa Ring oscillator circuit microcomputers and IC cards using the sa

1994-07-06

1995-06-13

Mis, David

Oscillators

Ring oscillators

331153, 331173, 331108C, 331175, H03B 524, H03B 504, H03K 3011, H03K 3027

Patent

active

054246903

ABSTRACT:
An oscillation circuit includes inversion circuits and delay circuits wherein at least one of the inversion circuits includes multiple inverters connected in series to one another and wherein the driving capability of a first stage inverter inserted immediately after the delay circuit at the input of the oscillation circuit is lower than that of a final stage inverter inserted immediately before the delay circuit at the output of the oscillation circuit.

REFERENCES:
patent: 4536720 (1985-08-01), Cranford, Jr. et al.
patent: 4625181 (1986-11-01), Bichler
patent: 5081428 (1992-01-01), Atriss et al.
patent: 5315166 (1994-05-01), Arimoto

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