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:
May. 13, 2014
Filed:
Nov. 24, 2011
Neil Ardron, Georgetown, CA;
Paul Dwight Haist, Toronto, CA;
Jordan Varley, Mississauga, CA;
Psion Inc., Mississauga, Ontario, CA;
Abstract
A novel capacitive sensing keyboard allows for keypads to be easily changed for repair or reconfiguration purposes. The keypads can be made of a deformable and resilient material, such as an elastomer, which can provide tactile feedback to a user and which are relatively inexpensive to manufacture. An array of overlying pairs of driver elements and sense elements are located adjacent the keypad and changes in the dielectric value of materials about the driver/sense element pairs are detected when a key on the keypad is pressed by a user. These detected changes are processed in view of a defined key map to determine which key or keys have been pressed by the user.