Portable transmitter which conserves transmitter power by storin

Details Portable transmitter which conserves transmitter power by storin Portable transmitter which conserves transmitter power by storin

1984-08-07

1986-12-23

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

307 44, 307 48, 307 66, 331174, 455127, 34082531, H02M 317

Patent

active

046317368

ABSTRACT:
A portable transmitter for transmitting a magnetic signal is disclosed. The transmitter is provided with a transmitting coil for generating a magnetic signal upon receiving an electric current from a dry cell through an intermittently operating electric current supplying transistor. The transmitter further comprises a capacitor, a charging line provided with a diode, and a switching transistor. The switching transistor makes the induced current which is generated in the transmitting coil, flow into the capacitor by way of the charging line when the electric current supply to the transmitting coil is stopped, and supplies the electric current stored by the capacitor to the transmitting coil when the electric current supply to the transmitting coil is started.

REFERENCES:
patent: 324621 (1885-08-01), Wheeler
patent: 2844712 (1958-07-01), Noizeux
patent: 3176229 (1965-03-01), Pierce
patent: 3980996 (1976-09-01), Greenspan et al.
patent: 4093877 (1978-06-01), Pollmeier

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