Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Patent
1997-10-28
1999-07-27
Cunningham, Terry D.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Pulse multiplication or division
377 47, 327115, H03K 2100
Patent
active
059303220
ABSTRACT:
A divide-by-4/5 counter includes a half transparent register, a domino logic, a buffer, a divide-by-4 counter and a control circuit. The half transparent register includes first, second, and third NMOS and PMOS transistors and first and second inverters. The domino logic includes fourth PMOS and NMOS transistors and first and second switches. The buffer is connected to a drain of the fourth PMOS transistor for out putting a reference clock signal. The divide-by-4 counter includes two divide-by-2 counters to obtain a divide-by-2 clock signal and an output clock signal. The control circuit is connected to a control terminal of the second switch for outputting a control signal of the domino logic according to the divide-by-2 clock signal, the output clock signal and a divide-by-4/5 control signal.
REFERENCES:
patent: 5424074 (1995-06-01), Koli et al.
patent: 5530407 (1996-06-01), Yabe et al.
patent: 5594703 (1997-01-01), Olivo et al.
patent: 5684971 (1997-11-01), Martell et al.
patent: 5729179 (1998-03-01), Sumi
patent: 5854755 (1998-12-01), Park et al.
Patrik Larsson, High-Speed Architecture for a Programmable Frequency Divider and a Dual-Modulus Prescaler, IEEE Journal of Solid-State Circuits, vol. 31, No. 5, May 1996, pp. 744-748.
Byungsoo Chang et al., A 1.2 CHz CMOS Dual-Modulus Prescaler Using New Dynamic D-Type Flip-Flops, IEEE Journal of Solid-State Circuits, vol. 31, No. 5, May 1996, pp. 749-752.
Jiren Yuan et al., High-Speed CMOS Circuit Technique, IEEE JSSC, Feb. 1989, pp. 39-47.
J.-R. Yuan et al., Fast CMOS Nonbinary Divider and Counter, Electronics Letters, vol. 29, No. 13, Jun. 24, 1993, pp. 1222-1223.
J.-R. Yuan, Efficient CMOS Counter Circuits, Electronics Letters, vol. 24, No. 21, Oct. 13, 1988, pp. 1311-1313.
Liu Shen-Iuan
Yang Ching-Yuan
Cunningham Terry D.
Hasanzadah Maria
National Science Council
LandOfFree
Divide-by-4/5 counter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Divide-by-4/5 counter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Divide-by-4/5 counter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-888252