Radio pager with touch sensitive display panel inactive during m

Details Radio pager with touch sensitive display panel inactive during m Radio pager with touch sensitive display panel inactive during m

1996-06-20

1998-08-11

Holloway, III, Edwin C.

Communications: electrical

Continuously variable indicating

With meter reading

455 312, 455 384, 345173, G08B 522

Patent

active

057933030

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.

REFERENCES:
patent: 5543588 (1996-08-01), Bissett et al.

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