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.

Date of Patent:
Nov. 03, 2009

Filed:

Oct. 25, 2004
Applicants:

Rajat Chauhan, Uttaranchal, IN;

Rajesh Kaushik, Haryana, IN;

Inventors:

Rajat Chauhan, Uttaranchal, IN;

Rajesh Kaushik, Haryana, IN;

Assignee:

STMicroelectronics Pvt. Ltd., Noida, Uttar Pradesh, IN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An improved output buffer having single ended as well as differential signaling capabilities, providing symmetrical outputs for differential output configurations for both synchronous and asynchronous applications, comprising: a pair of flip-flops receiving complementary input signals, a pair of transmitters each having its input connected to the output of one of the flip-flops and providing its output to an output pin, a sense block that senses the transition on complementary input signals and generates a pulse at each transition, and a multiplexer having its output connected to the clock input of said pair of flip flop and one input connected to the output of the sense block for asynchronous mode operation, the second input connected to a clock signal for synchronous mode operation and a select input that enables either asynchronous mode or synchronous mode operation.


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