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:
Jul. 17, 2007
Filed:
Mar. 03, 2005
Allan T. Davidson, San Jose, CA (US);
Jinghui Zhu, San Jose, CA (US);
Allan T. Davidson, San Jose, CA (US);
Jinghui Zhu, San Jose, CA (US);
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Abstract
In one embodiment, a circuit is provided that includes: a differential input receiver having a first input terminal and a second input terminal; a first programmable switch coupled to the first input terminal and coupled through a first resistor to a first voltage such that if the first programmable switch is closed, the first input terminal is pulled towards the first voltage; and a second programmable switch coupled to the second input terminal and coupled through a second resistor to a second voltage such that if the second programmable switch is closed, the second input terminal is pulled towards the second voltage, wherein the first and second programmable switches are programmed to be closed during a differential input mode of operation in which the differential input receiver processes differential input signals provided to the first and second input terminals.