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.

Date of Patent:
Nov. 20, 2007

Filed:

Sep. 28, 2005
Applicants:

Thomas J. Giovannini, San Jose, CA (US);

Craig Schulz, Fremont, CA (US);

Song Q. Shang, Palo Alto, CA (US);

Inventors:

Thomas J. Giovannini, San Jose, CA (US);

Craig Schulz, Fremont, CA (US);

Song Q. Shang, Palo Alto, CA (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G 3/20 (2006.01); H03F 3/08 (2006.01); H03K 5/19 (2006.01); H04B 10/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for optical receiver circuit protection includes a bias source, a bias monitor, and a comparator. The bias source is to provide a bias voltage to an optical receiver. The bias monitor is coupled to measure a current through the optical receiver, where the current changes responsive to received optical energy. A comparator is coupled to the bias monitor, where the comparator has a first state if the current is less than a threshold current level and where the comparator has a second state if the current is greater than the threshold current level. The bias source is coupled to be enabled responsive to the comparator switching to the first state and disabled responsive to the comparator switching to the second state.


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