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:
Oct. 23, 2012
Filed:
Nov. 18, 2009
Vinh Van Ho, San Jose, CA (US);
Tien Duc Pham, San Jose, CA (US);
Tim Tri Hoang, San Jose, CA (US);
Van Ton-that, San Jose, CA (US);
Vinh Van Ho, San Jose, CA (US);
Tien Duc Pham, San Jose, CA (US);
Tim Tri Hoang, San Jose, CA (US);
Van Ton-That, San Jose, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A phase interpolator circuit includes first and second transistors coupled to form a differential pair, a load circuit, a first set of switch circuits, a second set of switch circuits, and a current source. The first set of switch circuits are coupled between the first transistor and the load circuit. The second set of switch circuits are coupled between the second transistor and the load circuit. The current source provides current for the differential pair.