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:
Nov. 30, 1999
Filed:
Mar. 14, 1997
Applicant:
Inventors:
Tony S Partow, Colorado Springs, CO (US);
Carl M Stanchak, Colorado Springs, CO (US);
Assignees:
Hyundai Electronics America, San Jose, CA (US);
NCR Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
178 1801 ; 178 1802 ; 178 1803 ; 178 1804 ; 178 1901 ; 178 1903 ;
Abstract
The invention concerns a stylus for producing a high-voltage, sinusoidal signal for an electrostatic digitizing pad. The high voltage is obtained by applying a sine wave to one lead of the primary of a transformer, and applying the inverse of the sine wave to the other lead of the primary. The secondary of the transformer produces the high voltage, which is developed into a signal which is applied to the digitizing pad.
Partow, Tony. (1999). High voltage stylus for portable computers (U.S. Patent No. 5994651). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5994651
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile