Communications: electrical – Land vehicle alarms or indicators – External signal light system
Patent
1990-12-14
1994-10-11
Yusko, Donald J.
Communications: electrical
Land vehicle alarms or indicators
External signal light system
340471, 340472, 340331, G08B 500
Patent
active
053551192
ABSTRACT:
Apparatus and method for controlling a signal device for energization by an electrical source. The apparatus includes circuitry for producing digital cycles on an output line wherein each digital cycle includes a sequence of pulses and spaces, each cycle having at least two pulses that differ in duration and at least two spaces that differ in duration. The apparatus also includes circuitry connected to the output line and responsive to the circuitry for producing the digital cycles for applying electrical energization from the electrical source to the signal device in accordance with the pulses in the digital cycles.
REFERENCES:
patent: 2891195 (1959-06-01), Smyth
patent: 3130349 (1964-04-01), Mallory
patent: 3247402 (1966-04-01), Hayden
patent: 3474410 (1969-10-01), Ivec
patent: 3584257 (1971-06-01), Adams
patent: 3618011 (1971-11-01), Leeder, Jr.
patent: 3631359 (1971-12-01), Jones
patent: 3660674 (1972-05-01), Bolinger
patent: 3710185 (1973-01-01), Switsen
patent: 3801866 (1974-04-01), Schmidgall
patent: 3893041 (1975-07-01), Foster et al.
patent: 3908179 (1975-09-01), Heehler et al.
patent: 4114071 (1978-09-01), Thrower, Jr. et al.
patent: 4149113 (1979-04-01), Sammis
patent: 4232305 (1980-11-01), Lelaidier et al.
patent: 4249160 (1981-02-01), Chilvers
patent: 4255749 (1981-03-01), Henry
patent: 4270074 (1981-05-01), Duckworth et al.
patent: 4280123 (1981-07-01), Right et al.
patent: 4284974 (1981-08-01), Ishida et al.
patent: 4309639 (1982-01-01), Thrower, Jr. et al.
patent: 4388614 (1983-06-01), Pezzillo et al.
patent: 4417189 (1983-11-01), Overfield
patent: 4555690 (1985-11-01), Fukushima et al.
patent: 4556862 (1985-12-01), Meinershagen
patent: 4595978 (1986-06-01), Sheffield
patent: 4663609 (1987-05-01), Rosario
patent: 4712044 (1987-12-01), Phillips
patent: 4791402 (1988-12-01), Vaugn
patent: 4831357 (1989-05-01), Miller
Unitrol Quadra-Speed Flashers, Modulting Patterns, 2 pgs.
Unitrol Emergency Vehicle Electronic Products, System 80K-System Pricing, Dunbar-Nunn Corporation, 2 pgs.
Installation Instructions, Unitrol Quadra-Speed Flashers, Dunbar-Nunn Corporation, 4 pgs.
Sound Off, Inc., Emergency Technology, Inc., Suggested Retail Price Sheet, Jul. 1, 1987, 4 pgs.
Unitrol Quadra-Speed Flashers, A High-Powered, Low-Cost Warning System for Emergency Vehicles, catalog, 4 pgs.
"Emergency Vehicle Lighting and Electronics", product catalog ATI Approved Technology, Inc., 6 pgs.
ETM Electronic Modulating System, product catalog, Sound Off, Inc. Emergency Technology, Inc., 2 pgs.
Giust John
Public Safety Equipment, Inc.
Yusko Donald J.
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