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:
Dec. 14, 1993
Filed:
May. 05, 1992
Alan J Werner, Jr, Rochester, NY (US);
Mohamad M Mojaradi, Los Angeles, CA (US);
Guillermo Lao, Hawthorne, CA (US);
Dale Sumida, Los Angeles, CA (US);
Mostafa R Yazdy, Los Angeles, CA (US);
Harry J McIntyre, Los Angeles, CA (US);
Mehrdad Zomorrodi, Thousand Oaks, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An electrostatic measurement apparatus for generating a modified electrical signal in proportion to an electrostatic potential present on a surface. The apparatus includes a sensor for producing a signal representative of the electrostatic potential on the surface. The apparatus also includes high-voltage and low-voltage devices combined to produce an amplifier which transforms the sensor signal into a low-voltage signal indicative the surface potential. The electrostatic measurement apparatus is implemented using high-voltage and low-voltage integrated circuit technology.