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.:

US RE41982 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 06, 2010

Filed:

Jan. 16, 2007
Applicant:

Michael J. Mcmanus, Liberty Township, OH (US);

Inventor:

Michael J. McManus, Liberty Township, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 5/00 (2005.12);
U.S. Cl.
CPC ...
Abstract

Input buffer circuitry that prevents high voltage output from high voltage circuitry from being applied to connected low voltage circuitry. An input of the input buffer circuitry receives signals from the high voltage circuitry. Pinch-off circuitry receives the input signals and prevents voltage above a threshold voltage from being applied to an output of the pinch-off circuitry. Boost circuitry controls the threshold voltage of the pinch-off circuitry and pull-up circuitry draws voltage from the output of the pinch-off circuitry to regulate the control by the booster circuitry.


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