Portable power source and RF tag utilizing same

Details Portable power source and RF tag utilizing same Portable power source and RF tag utilizing same

1993-03-31

1995-10-10

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

323906, 322 2R, 320 20, H04Q 100

Patent

active

054574471

ABSTRACT:
An RF tag (10) includes an RF receiver (16) and an RF transmitter (18). A power source (12) provides power to the receiver and transmitter. The power source includes a plurality of energy converters (22, 24, 26, 28, 30, and 32). Each energy converter is responsive to a predetermined form of incident energy for converting its respective predetermined form of incident energy to electrical current. At least two of the energy converters are responsive to respective different predetermined forms of incident energy for providing electrical current. A storage capacitor (54) stores the electrical current provided by the energy converters and is coupled to the RF receiver and RF transmitter. A plurality of RF tags (10, 110, 140, 160) utilizing the power source 12 are also described.

REFERENCES:
patent: 4827395 (1989-05-01), Anders
patent: 4955038 (1990-09-01), Lee
patent: 5300875 (1994-04-01), Tuttle

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