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:
Jun. 23, 1992

Filed:

Sep. 28, 1990
Applicant:
Inventors:

Harold L Davis, The Colony, TX (US);

Douglas P Sheppard, Southlake, TX (US);

Assignees:

Benchmarq Microelectronics, Inc., Carrollton, TX (US);

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307359 ; 307246 ; 307555 ;
Abstract

A circuit for presetting the voltage of an output terminal connected to an external load, where the output terminal receives either a high or a low voltage level state for output to the load during a data cycle, includes a voltage detector connected to the output terminal for sensing the voltage level at the output terminal at the end of the data cycle to determine whether the voltage level is at a high or a low voltage level state. A driver is connected to the voltage sensor for driving the voltage level at the output terminal prior to the start of a subsequent data cycle toward the opposite voltage state to a mid-level, as determined by the prior voltage state sensed by the voltage detector.


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