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:
Oct. 05, 2004
Filed:
Sep. 13, 2000
Applicant:
Inventors:
George Kwan, Sunnyvale, CA (US);
Maria B. Hu, San Jose, CA (US);
Burton B. Lo, San Francisco, CA (US);
Anthony Pan, Fremont, CA (US);
Assignee:
3Com Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/100 ; H04M 9/00 ;
U.S. Cl.
CPC ...
H04M 1/100 ; H04M 9/00 ;
Abstract
An integrated circuit is provided to convert an analog telephone signal into a digital format. The integrated circuit includes an analog-digital converter coupled to an averager. Sampled analog values are averaged at intervals and compared to a threshold level to determine a digital value.