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. 26, 1996
Filed:
Jun. 07, 1995
Marc Bidiville, Pully, CH;
Eric Raeber, Menlo Park, CA (US);
Javier Arreguit, Le Mont sur Lausanne, CH;
Harthmuth Buczek, Marin-Epagnier, CH;
Floris A Van Shaik, Chavannes, CH;
Francedilla.ois Bauduin, Chezard, CH;
Denis O'Keeffe, Newmarket, IE;
Logitech, Inc., Fremont, CA (US);
Abstract
A cursor control device for personal computers and workstations includes various embodiments, some of which include a patterned ball and some of which rely on other patterned surfaces, which recognizes changes in the position of the pattern relative to a sensor having an array of photosensitive elements. Circuitry associated with the sensor determines movement of the pattern across the array, and translates that movement into conventional cursor control signals supplied to a host system.