Electric lamp and discharge devices: systems – Plural load device systems – Sequential starting
Patent
1991-10-07
1994-05-31
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural load device systems
Sequential starting
315360, 315200A, 315161, 315320, 315210, 362800, H05B 3700
Patent
active
053172388
ABSTRACT:
An electronic display for amusement or ornamentation includes a CMOS counter chip connected to a low voltage DC source, with each counter output connected directly to one of a plurality of LEDs. An antenna wire, which can be a short length of wire or a wire hook is connected directly to the trigger input of the chip, and the ambient field-induced AC voltage on the antenna is sufficient to actuate the counter chip and cause the LEDs to flicker sequentially as the counter outputs are incremented. The LEDs may be embodied in a wide variety of decorative arrays to represent objects, images, and icons. The visual effect is not monotonous, due to the natural variations of the ambient field about the ornament. The invention also comprises a Christmas tree light assembly, including a plurality of ornaments, each constructed as described and including a hook-shaped antenna wire for hanging on a Christmas tree. Each ornament may be powered by an individual battery included therein. Alternatively, the invention provides a transformer/rectifier power supply with an input connected to utility power and 3-9 VDC output connected to a cable which is hung about the Christmas tree. Each ornament may be wired or plug-connected to the cable, and the individual batteries for each ornament may be eliminated. The antennae of the ornaments may be triggered by ambient electromagnetic fields; alternatively, the power cable may be provided with a trigger wire that carries a low voltage, induction-coupled signal trigger signal to all the ornaments.
REFERENCES:
patent: 2268870 (1942-01-01), Greenlee
patent: 3911423 (1975-10-01), Arndt et al.
patent: 4264845 (1981-04-01), Bednarz
patent: 4445132 (1984-04-01), Ichikawa et al.
patent: 4686425 (1987-08-01), Havel
patent: 4870325 (1989-09-01), Kazar
patent: 5008595 (1991-04-01), Kazar
Cohen Howard
Pascal Robert J.
Shingleton Michael B.
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