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:
Jan. 28, 2014
Filed:
Dec. 07, 2012
International Business Machines Corporation, Armonk, NY (US);
Kai D. Feng, Hopewell Junction, NY (US);
Jon-ru Guo, Wappingers Falls, NY (US);
Trushil N. Shah, Wappingers Falls, NY (US);
Ping-Chuan Wang, Hopewell Junction, NY (US);
Zhijian Yang, Stormville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A clock phase shift detector circuit may include a phase detector for generating a phase signal based on a phase difference between first and second clock signals. A current mirror having a first, a second, and a third integrator may be coupled to the phase detector, whereby the first integrator integrates the first clock signal and generates a first voltage, the second integrator integrates the first clock signal and generates a second voltage, and the third integrator integrates the phase signal and generates a third voltage. A first comparator receives the first and the third voltage, and generates a first control signal. A second comparator receives the second and the third voltage, and generates a second control signal. The first and second control signals may detect a change between the phase difference of the first and the second clock signal and an optimized phase difference.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile