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:
Nov. 25, 2008
Filed:
Nov. 12, 2004
Use of a known common-mode voltage for input overvoltage protection in pseudo-differential receivers
Applicant:
Todd A. Randazzo, Colorado Springs, CO (US);
Inventor:
Todd A. Randazzo, Colorado Springs, CO (US);
Assignee:
LSI Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/20 (2006.01); H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus are provided for protecting elements of a receiver from overvoltages in a pseudo-differential signal having a true signal and a reference voltage. The method and apparatus limit the true signal to a protection voltage, which is correlated to the reference voltage, to produce a protected true signal. The protected true signal and the reference voltage are applied to inputs of the receiver.