Microcomputer-controlled light switch

Details Microcomputer-controlled light switch Microcomputer-controlled light switch

1985-04-17

1987-03-10

Dixon, Harold

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315292, 315293, 315362, H05B 3702

Patent

active

046493239

ABSTRACT:
A light level controller includes a microcomputer controlled light switch which responds to a manual tap or a longer manual depression of the switch in order to initiate various control modes for a light source. Preset levels of light intensity may be stored in the microcomputer's memory and an automatic fade mode may be initiated to cause the level of light intensity to fade from a current level to a preset level at a pre-established rate. The controller may respond to the momentary depression of the switch to initiate the automatic fade mode or if tapped while a fade is in progress it may cause the light source to make an abrupt transition to either full on or full off, depending on whether a higher or lower level of light intensity is desired. A depression of the switch for a period longer than a tap will cause the level of light intensity to continue to change until the switch is released, and simultaneously this level will be stored in memory.

REFERENCES:
patent: 3668467 (1972-06-01), Isaac
patent: 3706914 (1972-12-01), Van Buren
patent: 3766431 (1973-10-01), Isaacs
patent: 3805096 (1974-04-01), Hamilton
patent: 3968401 (1976-07-01), Bryant
patent: 4240011 (1980-12-01), Dinges
patent: 4241295 (1980-12-01), Williams
patent: 4287468 (1981-09-01), Sherman
patent: 4289972 (1981-09-01), Wern
patent: 4359670 (1982-11-01), Hosaka et al.

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