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:
Sep. 14, 2004
Filed:
Jul. 10, 2002
Applicant:
Inventor:
Phil Couch, Honiton, GB;
Assignee:
Carrier Access Corporation, Boulder, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 3/00 ;
U.S. Cl.
CPC ...
H01L 3/00 ;
Abstract
The present invention provides apparatuses and methods for measurement and control of a laser in a passive optical network. In particular, prior to receiving a transmission grant, the laser is pre-driven at a current below a predetermined threshold to “pre-charge” the laser. Also, during the zero level measurement interval, the laser is driven at a non-zero level and the required zero level current is calculated.