Automatic display illumination in a receiver

Details Automatic display illumination in a receiver Automatic display illumination in a receiver

1994-07-28

1996-08-20

Pham, Chi H.

Telecommunications

Receiver or analog modulated signal frequency converter

Measuring or testing of receiver

455 383, 455343, 34082544, H04B 116

Patent

active

055488323

ABSTRACT:
A receiver is disclosed which includes an automatic display illumination capability. Upon the receipt of a signal, the display is illuminated until either an interval timer expires, or the signal goes away. In the preferred embodiment, a portable scanning receiver employs a liquid crystal display and an incandescent light. The automatic display capability can be enabled and disabled to a manual display illumination mode of operation. Benefits include improved ease of use in low ambient light conditions and improved battery life.

REFERENCES:
patent: 4129869 (1978-12-01), Morineka
patent: 4198601 (1980-04-01), Ono et al.
patent: 4205270 (1980-05-01), Okatani
patent: 4455673 (1984-06-01), Topping
patent: 4536761 (1985-08-01), Tsunoda et al.
patent: 4713659 (1987-12-01), Oyagi et al.
patent: 4868563 (1989-09-01), Stair et al.
patent: 5198797 (1993-03-01), Daidoji
patent: 5398022 (1995-03-01), Lipp

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