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:
Aug. 02, 2011
Filed:
Sep. 23, 2009
Hsin-hsien LI, Hsin Chu, TW;
Chin-chun Lin, Hsin Chu, TW;
Tsung-hsien Hsieh, Hsin Chu, TW;
Zi-long Huang, Hsin Chu, TW;
Hsin-Hsien Li, Hsin Chu, TW;
Chin-Chun Lin, Hsin Chu, TW;
Tsung-Hsien Hsieh, Hsin Chu, TW;
Zi-Long Huang, Hsin Chu, TW;
Ralink Technology Corp., Jhubei, TW;
Abstract
A line driver for a communications system requiring multiple power sources for different modes of operation comprises a current source and a voltage source coupled in parallel with the current source. The current source has a first terminal and a second terminal. The line driver further comprises a first source resistor coupled to the first terminal of the current source and a second source resistor coupled to the second terminal of the current source. The current source provides a driving current and the voltage source provides a driving voltage at the same time during operations of the communications system.