Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Patent
1995-05-16
1997-02-18
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
327299, 327276, 327 43, H03K 700, H03K 1900
Patent
active
056044550
ABSTRACT:
A transition detection device, generating a variable-duration pulse, such as an enable signal for the input circuits of a CMOS static memory circuit, receiving an input signal that includes a delay circuit of determined delay value, making it possible to generate a delayed enable signal, with a safety margin of duration equal to the delay value. A calibration circuit is provided, which includes an exclusive-OR circuit receiving the input signal on a first input. A controlled delay circuit is provided to deliver an input signal delayed by a second delay value to a second input of the exclusive-OR circuit, which, upon access by the CEB signal, delivers a calibrated output pulse of duration equal to the second delay value, and truncated pulses for any transition occurring on the other inputs of the circuit, in the presence of address transitions or of other, not strictly simultaneous, inputs.
REFERENCES:
patent: 4644184 (1987-02-01), Miyawaki et al.
patent: 4775805 (1988-10-01), Whitefoot
patent: 4775810 (1988-10-01), Suzuki et al.
patent: 4799022 (1989-01-01), Skierszkan
patent: 4843331 (1989-06-01), Yang
patent: 4905192 (1990-02-01), Nogami et al.
patent: 4975605 (1990-12-01), Bazes
patent: 5039893 (1991-08-01), Tomisawa
patent: 5185540 (1993-02-01), Boudry
patent: 5197082 (1993-03-01), Uda et al.
patent: 5365128 (1994-11-01), Bazes
IBM Technical Disclosure Bulletin "Frequency Doubles" F. C. Breslau, vol. 10 No. 6 Nov. 1967.
Electronic Engineering, "Square Wave Division for Symmetrical Outputs", Nair et al. vol. 49, No. 592 May 1977.
Bion Thierry
Danckaert Jean-Yves
Callahan Timothy P.
Matra MHS
Shin Eunja
LandOfFree
Transition detection device generating a variable-duration pulse does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transition detection device generating a variable-duration pulse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition detection device generating a variable-duration pulse will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1604654