Pager with message display function

Details Pager with message display function Pager with message display function

1996-12-16

1999-08-03

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

3403111, 455 384, 370313, 349 68, 345102, H04Q 718, G02F 113

Patent

active

059330899

ABSTRACT:
A pager having a notifier to notify the receipt of a call signal for itself, an LCD to display certain display messages, a light sensor to detect the light quantity of the light irradiated to the surface of the LCD, a control section to generate the contrast adjustment signal corresponding to the received light quantity of the LCD detected by the light sensor, a reference voltage generation section to generate the reference voltage according to the contrast adjustment signal generated by the control section, and an LCD driver to adjust the light intensity of the display message on the LCD according to the reference voltage supplied from the reference voltage generation section.

REFERENCES:
patent: 4713659 (1987-12-01), Oyagi et al.
patent: 4755816 (1988-07-01), DeLuca
patent: 4868563 (1989-09-01), Stair et all.
patent: 5153756 (1992-10-01), Ike
patent: 5157525 (1992-10-01), Eaton et al.
patent: 5398022 (1995-03-01), Lipp
patent: 5493280 (1996-02-01), Shibayama
patent: 5548271 (1996-08-01), Tsuchiyama et al.
patent: 5818553 (1998-10-01), Koenck et al.

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