Detection circuit for measurement of test lead and using the...

Details Detection circuit for measurement of test lead and using the... Detection circuit for measurement of test lead and using the...

2006-10-13

2008-08-05

Nguyen, Vincent Q. (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S538000

Reexamination Certificate

active

07408361

ABSTRACT:
A detecting method of a detecting circuit with a plugged test lead. The method includes setting an operation mode of the detecting circuit by a recognizing unit, transmitting a signal to the recognizing unit by an oscillating unit when the test lead plugs or unplugs into a split contact jack, receiving the signal from the oscillating unit by the recognizing unit, and determining a condition of the detecting circuit, and sending a message to a user in accordance with the determining result of the recognizing unit. Further, the oscillating unit is stopped from oscillating and outputs a quiescent state voltage to the recognizing unit when the plugged test lead is inserted into the split contact jack.

REFERENCES:
patent: 3775677 (1973-11-01), Garrett et al.
patent: 3927404 (1975-12-01), Cooper
patent: 5477152 (1995-12-01), Hayhurst
patent: 6188560 (2001-02-01), Waas
patent: 2003/0141878 (2003-07-01), Shinzou et al.
patent: 05060799 (1993-03-01), None

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