Electronic device, transmission system, and method for...

Details Electronic device, transmission system, and method for... Electronic device, transmission system, and method for...

2007-09-18

2007-09-18

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S066000, C324S527000, C324S522000, C340S425200, C340S538000

Reexamination Certificate

active

11551898

ABSTRACT:
An electronic device has a first signal path, a first power supply path, and a connector that transmits to an external device the input signal on which the voltage has been superposed. The device also has a first power supply switch inserted into the first power supply path and an amplitude detector that detects at the connector an amplitude of the input signal, a control section that determines, based on a detection output from the amplitude detector, which a connection condition of the external device to the connector is a first condition in which the external device is not connected to the connector or a second condition in which the external device is connected to the connector. Based on the connection condition, the control section turns on or off the first power supply switch.

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patent: 6104198 (2000-08-01), Brooks
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patent: 2002/0118023 (2002-08-01), Ewalt et al.
patent: 2003/0141878 (2003-07-01), Shinzou et al.
patent: 2006/0145833 (2006-07-01), Brandt et al.
patent: 1 372 270 (2003-12-01), None
patent: 2259992 (1993-03-01), None
patent: 8-288909 (1996-11-01), None

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