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:
Nov. 25, 2014
Filed:
Aug. 04, 2011
Lawrence H. Zuckerman, Livermore, CA (US);
Perry I. Tsao, Sunnyvale, CA (US);
Thomas Yang, Milpitas, CA (US);
Keiichi Mcguire, San Jose, CA (US);
Chenguang Gong, Santa Clara, CA (US);
Ravichander Bairi, Bangalore, IN;
Lawrence H. Zuckerman, Livermore, CA (US);
Perry I. Tsao, Sunnyvale, CA (US);
Thomas Yang, Milpitas, CA (US);
Keiichi McGuire, San Jose, CA (US);
Chenguang Gong, Santa Clara, CA (US);
Ravichander Bairi, Bangalore, IN;
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A master modem is configured to generate a carrier signal for transmission over a wired connection. A slave modem is configured to change an impedance of the wired connection to alter generation of the carrier signal by the master modem. The impedance of the wired connection is changed based on data to be provided by the slave modem. The master modem can demodulate its own carrier signal to obtain the data provided by the slave modem. The impedance of the wired connection could be changed by changing an impedance of a transformer winding or inductor of the slave modem, where the transformer winding or inductor is coupled to the wired connection. The impedance of the wired connection could also be changed by changing a reactance of a circuit coupled to the wired connection.