Transmitting apparatus

Details Transmitting apparatus Transmitting apparatus

2006-02-14

2006-02-14

Nguyen, Duc M. (Department: 2685)

Telecommunications

Transmitter

With electrical protection of transmitter circuit or operator

C455S127100, C455S127500, C455S572000, C455S343100, C455S127500, C323S299000

Reexamination Certificate

active

06999736

ABSTRACT:
A DC voltage input through an input terminal is applied through an inductor, to a power supply circuit unit and an input voltage detecting circuit. The input voltage detecting circuit detects the input DC voltage and when it is detected that the input voltage value may possibly cause malfunction, a control circuit turns off a switch circuit based on the detection output, whereby power supply from the power supply circuit to a transmission circuit is stopped, and malfunction of the transmission circuit is prevented.

REFERENCES:
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patent: 5287014 (1994-02-01), Kinoshita
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patent: 6137696 (2000-10-01), Hall et al.
patent: 6215286 (2001-04-01), Scoones et al.
patent: 6256520 (2001-07-01), Suzuki
patent: 6643527 (2003-11-01), Satoh et al.
patent: 10-326116 (1998-12-01), None
patent: 11-346182 (1999-12-01), None
patent: 2000-209848 (2000-07-01), None

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