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:
Aug. 11, 1998
Filed:
Jun. 20, 1996
Kuniaki Koga, Shizuoka, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a radio display pager, the display panel is overlaid with a touch sensitive film and a scan pulse generator is provided. When receiving a paging signal and storing a received message, the scan pulse generator is inactive to avoid interference. The scan pulse generator is activated when a physical key is manually operated for displaying virtual keys by applying a first scan pulse to one end of each horizontal path of the touch sensitive film and a second scan pulse to one end of each vertical path of the film. A pair of coordinate signals is derived from the scan pulse outputs from the other ends of the horizontal and vertical paths. When one of the virtual keys is operated, coordinate signals representing its position are produced and, in response, a corresponding message in the memory is displayed. The scan pulse generator is deactivated when the physical key is operated again.