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:
Jun. 07, 2016
Filed:
Dec. 24, 2014
National Semiconductor Corporation, Santa Clara, CA (US);
Vijaya G. Ceekala, San Jose, CA (US);
Qingping Zheng, Saratoga, CA (US);
Min Du, Campbell, CA (US);
Xin Liu, Mountain View, CA (US);
Chandrakumar R. Pathi, San Jose, CA (US);
NATIONAL SEMICONDUCTOR CORPORATION, Santa Clara, CA (US);
Abstract
Interface circuitry and method for transmitting and receiving downstream and upstream data signals simultaneously via a common conductor pair. The composite signal containing the downstream and upstream data signal components being conveyed by the common conductor pair is isolated, e.g., via signal filtering or buffering, and combined with an appropriately scaled inverse replica of the outgoing upstream data signal to subtract out upstream data signal components and thereby provide the downstream data signal substantially free of any upstream data signal components.