The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1999
Filed:
Apr. 10, 1997
Vladimir Koifman, Rishon Le Zion, IL;
Yachin Afek, Kfar Saba, IL;
Motorola, Inc., Schaumburg, IL (US);
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.