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:
May. 06, 2003
Filed:
Oct. 03, 2000
Applicant:
Inventor:
Xiao Lin, San Jose, CA (US);
Assignee:
Oak Technology, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
Method and system for estimating an optimal power level for writing on a compact disk. Measured values m(P ) of a modulation amplitude are approximated by a continuous function m(P)=1−A/(P−P +B) of power level P, where C=1 and B=A, and the parameter A is to be determined, or where all three parameters A, B and C are to be determined. A selected derivative of modulation amplitude, &ggr;=(P/m(P)·(dm/dP) is computed and analyzed to estimate a value of power level P corresponding to a specified value of &ggr;.