Clock-pulse generator circuit

Details Clock-pulse generator circuit Clock-pulse generator circuit

2007-10-16

2007-10-16

Chang, Joseph (Department: 2817)

Oscillators

Ring oscillators

C331S002000

Reexamination Certificate

active

11055539

ABSTRACT:
The circuit comprises a first ring oscillator comprising an odd number of inverting elements, a delay element and an output terminal; the delay element responds to a pulse at its input with a predetermined time delay with respect to a predetermined edge of the input pulse and substantially without time delay with respect to the other edge of the input pulse. With a view to avoiding start-up transients and generating pulses with a duty cycle that can be easily modified, the circuit comprises a second ring oscillator, having an output terminal connected to the output terminal of the first oscillator, and a bistable logic circuit having an output terminal connected to the common output of the first and the second oscillator. At least one of the inverting elements of the first oscillator and at least one of the inverting elements of the second oscillator form part of the bistable logic circuit.

REFERENCES:
patent: 4550405 (1985-10-01), West
patent: 4565976 (1986-01-01), Campbell
patent: 4893095 (1990-01-01), Thommen
patent: 5038118 (1991-08-01), Langenkamp
patent: 5357204 (1994-10-01), Knoll
patent: 5416436 (1995-05-01), Rainard
patent: 5592126 (1997-01-01), Boudewijns et al.
patent: 5841707 (1998-11-01), Cline et al.
patent: 5923715 (1999-07-01), Ono
patent: 6060930 (2000-05-01), Choi
patent: 6229367 (2001-05-01), Choudhury
patent: 6362694 (2002-03-01), Doberenz
patent: 6373342 (2002-04-01), Tran
patent: 6388490 (2002-05-01), Saeki
patent: 6603339 (2003-08-01), Atallah et al.
patent: 2002/0027465 (2002-03-01), Yoshikawa
patent: 2005/0231293 (2005-10-01), Confalonieri et al.
patent: 2005/0231412 (2005-10-01), Confalonieri et al.
patent: 0 901 226 (1999-03-01), None
patent: 62-76317 (1987-04-01), None
patent: 5-304441 (1993-11-01), None
patent: 8-102643 (1996-04-01), None
U. Tietze, Ch. Schenk, “Helbleiter-Schaltungstechnik 10.Auflage,”Springer Verlag561846, pp. 232-236, 1993. XP002288569.
U.S. Appl. No. 11/055,564, filed Feb. 9, 2005, Confalonieri et al.

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