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. 11, 2004
Filed:
Jun. 04, 2002
Dennis Chi Zhou, Cupertino, CA (US);
Kai Zhang, San Jose, CA (US);
Shou-Jong Sheih, Saratoga, CA (US);
Arasor Corporation, Mountain View, CA (US);
Abstract
The present invention is directed towards a channel power monitor for monitoring channel power levels for each of N signal channels. The value of each channel power level is designated as p(&lgr; ), where &lgr; is a channel parameter that characterizes each channel. An embodiment of the invention includes a variable channel attenuator having M attenuation profiles where M≧N, and where a k-th attenuation profile is characterized as a function of the channel parameter &lgr; by A (&lgr; ). This embodiment also includes a detector for measuring a k-th integrated attenuated power level, the value of which is represented by P . An analysis unit receives all of the values P of the integrated attenuated power levels and thereupon derives the values p(&lgr; ) of the channel power levels by solving a set of linear equations.