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. 18, 2005
Filed:
Dec. 14, 1999
Applicant:
Victor Koren, Rishon le Zion, IL;
Inventor:
Victor Koren, Rishon le Zion, IL;
Assignee:
Orckit Communications, Ltd., Tel-Aviv, IL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M009/08 ;
U.S. Cl.
CPC ...
Abstract
A balanced hybrid circuit for compensating for transmission echo signal in a modem. The hybrid circuit includes transmission echo compensation circuits that approximate the echo signal effects of the line and line transformer, respectively, and produce a transmission echo signal replica. A sample of the transmission signal and the replica of the transmission echo are then subtracted from the signal received on the line to produce a received signal isolated from the transmission signal and the transmission echo signal.