Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Patent
1997-04-10
1999-05-25
Wambach, Margaret Rose
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Pulse multiplication or division
327202, 327203, 327115, 327117, H03K 2100
Patent
active
059075899
ABSTRACT:
A frequency divider (50) comprises complementary components (e.g., CMOS transistors) which are placed in two complementary portions (10, 20) with similar structures. The portions are coupled by four lines (131-134). Each line (e.g., 131) is coupled to a pair of transistors including a pull device (e.g., 271) and a hold device (e.g., 291). The devices receives identical signals from another line (e.g., 134) and the input signal X in the same, non-inverted form. The devices have complementary logical functions because of their complementary structures (serial.backslash.parallel) and complementary components (P-FET, N-FET). When a line (e.g., 131) is pulled to a reference line (e.g., 91), contention between the devices is substantially avoided. There is no need to provide the input signal X in a non-inverted and in an inverted form.
REFERENCES:
patent: 4395774 (1983-07-01), Rapp
patent: 4845727 (1989-07-01), Murray
patent: 5175752 (1992-12-01), Yokomizo
patent: 5570051 (1996-10-01), Chiang et al.
patent: 5751665 (1998-05-01), Tanoi
Jan Craninckx and Michiel S.J. Steyaert, "A 1.75 GHz/3-V Dual Modulus divide-by-128/129 Prescaler in 0.7.beta.m CMOS" in IEEE Journal of solid-state circuits, vol. 31, No. 7, Jul. 1996, pp. 890-897.
Navid Foroudi and Tadeusz A. Kwasniewski, "CMOS High-Speed dual-modulus Frequency didvider for RF Frequency Synthesis" in IEEE Journal of solid-state circuits, vol. 30, No. 2, Feb. 1995, pp. 93-100.
R. Rogenmoser, Q. Huang, F. Piazza, "1.57 GHZ Asynchronous and 1.4 GHZ Dual-Modulus 1.2.beta.m CMOS prescalers" in IEEE 1994 Custom integrated circuits conference, pp. 387-390.
R. Rogenmoser, N. Felber, Q. Huang and W. Fichtner, "1.16 GHZ Dual-Modulus 1.2.beta.m CMOS prescaler" in IEEE 1993 custom integrated circuits conference, pp. 27.6.1-27.6.4.
Afek Yachin
Koifman Vladimir
Motorola Inc.
Wambach Margaret Rose
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