Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-09-23
2000-12-12
Wu, Daniel J.
Communications: electrical
Condition responsive indicating system
Specific condition
340636, 3406931, 3406935, G08B 1710
Patent
active
061604836
ABSTRACT:
A composite battery-transmitter for use in powering an electronic device has a set of terminals, a battery, a radio transmitter, and current sensing circuitry housed within a casing which is in the shape of a conventional battery. The electronic device can be attached to the terminals. When the electronic device draws a load current, that current is sensed and the radio transmitter transmits a signal.
REFERENCES:
patent: 4335375 (1982-06-01), Schaeffer
patent: 4581606 (1986-04-01), Mallory
patent: 5235320 (1993-08-01), Romano
patent: 5455566 (1995-10-01), Conway
patent: 5654692 (1997-08-01), Baxter, Jr. et al.
Pham Toan
Wu Daniel J.
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