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. 15, 1992
Filed:
Jun. 08, 1990
Kishan Shenoi, Milpitas, CA (US);
Paul P Yang, Cupertino, CA (US);
Terrence G Sopira, Mountainview, CA (US);
DSC Communications Corporation, Plano, TX (US);
Abstract
An integrated echo canceling multiplexor is provided which comprises an echo canceler for receiving DS1 signals for canceling echo in the DS1 signal and producing an echo-free digital logic signal. A first performance monitor is coupled to the echo canceler for receiving the echo-free digital logic signal and determining the quality of the signal. A multiplexor-demultiplexor is further coupled to the echo canceler for receiving the echo-free digital logic signal and producing a DS3 signal. Additionally, a second performance monitor is coupled to the multiplexor-demultiplexor and receives the DS3 signal and determines the quality of the signal.