Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1986-12-01
1989-09-12
Miller, Stanley D.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
350331R, 350332, 340811, 340702, 340703, G02F 113, G09G 128, G09G 300
Patent
active
048654256
ABSTRACT:
A power source device for driving a liquid crystal device comprises an inverter for powering a back-light discharge lamp and a negative voltage power source generator for driving the liquid crystal device. The negative voltage generator is provided as part of the inverter. A step-up transformer of the inverter is commonly used as part of the negative voltage power source generator.
REFERENCES:
patent: 3986022 (1976-10-01), Hyatt
patent: 4037931 (1977-07-01), Ito et al.
patent: 4139278 (1979-02-01), Matsumoto et al.
patent: 4205311 (1980-05-01), Kutaragi
patent: 4698668 (1987-10-01), Milgram
Kawano Katsunori
Kobayashi Uruo
Oki Youji
Miller Stanley D.
Phan Trong Quang
Stanley Electric Co. Ltd.
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