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:
Apr. 04, 2000

Filed:

Sep. 26, 1997
Applicant:
Inventor:

Matthew P Crowley, San Jose, CA (US);

Assignee:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
327333 ; 327112 ; 327437 ; 326 87 ;
Abstract

A differential signal generator for generating a true/complement output signal pair in response to a single-ended input signal is disclosed. The differential signal generator includes an input stage that generates a true/complement intermediate signal pair in response to the input signal, and first and second inverters that generate the output signal pair in response to the intermediate signal pair. The first and second inverters have dynamic beta ratios that change in response to the input signal. This is accomplished by coupling a transistor in the first inverter to ground and decoupling a transistor in the second inverter from ground when the input signal has a high value, and decoupling the transistor in the first inverter from ground and coupling the transistor in the second inverter to ground when the input signal has a low value. As a result, the output signal pair cross each other at a predetermined cross-point although the intermediate signal pair does not.


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