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:
Feb. 21, 2012
Filed:
Dec. 18, 2009
Teng Chow Ooi, Penang, MY;
Eng Huat Lee, Penang, MY;
Chuan Khye Chai, Penang, MY;
Yew Fatt (Edwin) Kok, Penang, MY;
Sergey Shumarayev, Los Altos Hills, CA (US);
Teng Chow Ooi, Penang, MY;
Eng Huat Lee, Penang, MY;
Chuan Khye Chai, Penang, MY;
Yew Fatt (Edwin) Kok, Penang, MY;
Sergey Shumarayev, Los Altos Hills, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A circuit includes a phase detection circuit and a phase change circuit. The phase detection circuit compares a phase of a first periodic signal to an input signal to generate a gain signal. The phase change circuit provides phase shifts to the first periodic signal in first and second directions when the gain signal has a first value. The phase change circuit increases phase shifts provided to the first periodic signal in the first direction in response to the gain signal changing from the first value to a second value. The phase change circuit provides phase shifts to the first periodic signal in the second direction when the gain signal has the second value that are smaller than the phase shifts provided to the first periodic signal in the first direction when the gain signal has the second value.