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:
Dec. 14, 2004
Filed:
Jun. 11, 2003
Method and apparatus for detecting interruption of an input signal with cancellation of offset level
Applicant:
Inventors:
Cindra W. Abidin, Los Angeles, CA (US);
Georgios Asmanis, North Hollywood, CA (US);
Yihai Xiang, Las Flores, CA (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/08 ; H03G 3/10 ; H03G 3/20 ;
U.S. Cl.
CPC ...
H03F 3/08 ; H03G 3/10 ; H03G 3/20 ;
Abstract
An input branch of a loss-of-signal (LOS) detector is coupled to a first input of a comparator. A threshold branch of the LOS detector is coupled to a second input of the comparator. An operational amplifier is connected between the input branch and the threshold branch to couple an offset level from the input branch to the threshold branch. The offset level is then cancelled at the comparator.