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. 22, 2012
Filed:
Jun. 16, 2010
Applicants:
Cheng Hsiang Hsieh, Los Gatos, CA (US);
Mengchi Liu, Fremont, CA (US);
Inventors:
Cheng Hsiang Hsieh, Los Gatos, CA (US);
Mengchi Liu, Fremont, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase interpolator is described. The phase interpolator can have a code-to-bias converter, and a phase interpolation interface. In an embodiment of a code-to-bias converter, a single digital-to-analog converter is provided to generate bias signaling associated with phase signals. A bleeder current source is provided to generate a bleeder current, where the bleeder current is selected responsive to phase so the phase signals do not reach zero current.