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:
Mar. 21, 2000
Filed:
Dec. 02, 1997
Applicant:
Inventors:
Lewis L Seffernick, Adams, IN (US);
David L Poole, Portland, IN (US);
Assignee:
CTS, Elkhatt, IN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ; G09G / ; H03K / ;
U.S. Cl.
CPC ...
345168 ; 345161 ; 341 34 ;
Abstract
A computer keyboard has a pointing stick integrally molded into and projecting from a surface of a plastic housing. Keyboard keys extend through holes in the same plastic housing. Strain-sensitive resistors are formed in a small location onto a circuit substrate. The same circuit substrate that carries the strain-sensitive resistors also carries conductive pads for the key switches. The strain-sensitive resistor location is bonded to the housing adjacent the pointing stick, but on an opposite surface of the housing from the pointing stick protrusion.