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. 20, 2009
Filed:
May. 27, 2005
Applicants:
George Adrian Hariman, Sunnyvale, CA (US);
Kenji Tomiyoshi, Chiba, JP;
Inventors:
George Adrian Hariman, Sunnyvale, CA (US);
Kenji Tomiyoshi, Chiba, JP;
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A feed-forward path is combined with a feed-back path to produce an output signal representation of an input signal frequency. The feed-forward path adjusts the output signal representation in response to a change in the input signal frequency, and does so in a response time that is independent of the feed-back path. Input frequencies can be represented as voltages, and first and second input frequency ranges which differ from one another can both be represented in the same range of voltages.