Infra-red secure remote controller

Details Infra-red secure remote controller Infra-red secure remote controller

1998-02-02

2000-10-03

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082572, 359140, 359142, G08C 1900

Patent

active

061279404

ABSTRACT:
An infra-red secure remote controller having a xenon gas discharge tube which is ignited and pulse modulated with a code impressed on the resultant xenon plasma arc. Each pulse modulated code represents a channel formed of a short pulse burst train of a plurality of high-energy optical pulses. The optical pulses are repeated about 10 to 15 times in a pulse burst train, so that the actual pulse burst train duration will comprise the pulses plus the dark interval time between pulses. Both the pulse length, the dark interval time, and the pulse burst train length are used by circuitry in a receiver for the controller to identify and distinguish an actual transmission from other interfering transmissions. The infra-red remote controller utilizes pulse burst length factors to enhance the reliability of the transmission and increase the possible number of separate codes available.

REFERENCES:
patent: 3633067 (1972-01-01), Dubois
patent: 4782895 (1988-11-01), Weinberg
patent: 4789801 (1988-12-01), Lee
patent: 5015432 (1991-05-01), Koloc
patent: 5041760 (1991-08-01), Koloc
patent: 5933090 (1999-08-01), Christenson
patent: 5952936 (1999-09-01), Enomoto

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