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:
Apr. 11, 2000
Filed:
Mar. 17, 1998
Carl L Shurboff, Grayslake, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A phase detector circuit includes a first flip flop, a second flip flop, a first charge pump and a second charge pump. Outputs of the flip flops directly enable the charge pumps in response to received clocking signals. A first delay circuit delays the output signal from the first flip flop to an AND gate which combines the delayed output signal and the output signal from the second flip flop. The AND gate output is delayed in a second delay circuit to produce a delayed reset signal which resets both flip flops simultaneously and disables the charge pumps. The phase detector circuit balances the amount of charge provided to a phase locked loop near the in-phase condition to improve linearization of the phase detector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile