Robert Gustavson resumes & CV records
Resumes
Robert Gustavson
Robert Alan Gustavson, 74Haleiwa, HI
Robert Gustavson Phones & Addresses
Haleiwa, HI
Corona del Mar, CA
4038 Keanu St, Honolulu, HI 96816
Petaluma, CA
La Quinta, CA
Newport Beach, CA
Costa Mesa, CA
El Toro, CA
Mentions for Robert Alan Gustavson
Publications & IP owners
Us Patents
Ambient Light Monitoring System
US Patent:
5821853, Oct 13, 1998
Filed:
Nov 5, 1996
Appl. No.:
8/744185
Inventors:
Robert Gustavson - Newport Beach CA
Frank A. Rose - Lake Forest CA
Frank A. Rose - Lake Forest CA
International Classification:
B60Q 126
H05B 3702
H05B 3702
US Classification:
340468
Abstract:
This invention includes a sensor, a time delay trigger circuit, and a power source. The sensor monitors an ambient light level and produces a sensed signal related to the ambient light level. The time delay trigger circuit is in electrical communication with the sensor for determining whether the ambient light level remains reduced below a predetermined level for a specified time. The time delay trigger circuit includes a counter/timer circuit, a comparator circuit, a timing gate circuit, and an output driver. The counter/timer circuit receives the sensed signal from the sensor and initiates a count sequence when the ambient light level is below a predetermined level. The counter/timer circuit provides a count value output representing elapsed time. The comparator circuit includes a plurality of switches used to set the specified time delay. The comparator circuit compares the count value output from the counter/timer circuit with the switches.
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