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:
May. 25, 2010
Filed:
Jan. 13, 2009
Junho Cho, Concord, CA;
Nancy Chan, Richmond Hill, CA;
Ramesh Senthinathan, Richmond Hill, CA;
Stephen Yue, Scarborough, CA;
Richard W. Fung, Markham, CA;
Junho Cho, Concord, CA;
Nancy Chan, Richmond Hill, CA;
Ramesh Senthinathan, Richmond Hill, CA;
Stephen Yue, Scarborough, CA;
Richard W. Fung, Markham, CA;
ATI Technologies ULC, Markham, CA;
Abstract
The present disclosure relates to a differential signaling circuit including differential signaling circuitry having at least one output and one input, that can operate in multiple mode of operations while using a single, low voltage supply source. Two or more switches are included and configured to selectively couple a supply voltage to the output dependent on a mode of operation of the differential signaling circuitry. The circuit also includes a switch control biasing circuit operatively coupled to at least one of the switches and to the output of the differential signaling circuitry. The switch control biasing circuit provides a switch control biasing voltage to control a state of the switch based on a voltage level of the output. Further, a bulk biasing circuit is included and operatively coupled to the switch. The bulk biasing circuit selectively provides a bulk biasing voltage to the switch based on the voltage level of the output.