Sensor for detecting the presence of a peripheral device

Details Sensor for detecting the presence of a peripheral device Sensor for detecting the presence of a peripheral device

1995-08-07

1999-07-06

Ballato, Josie

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324415, 324126, H01H 3104

Patent

active

059201975

ABSTRACT:
A sensor is provided for automatically detecting the presence or absence of an electronic device which interfaces with other devices via an information signal. The sensor comprises a receiving connector which receives a mating connector associated with the electronic device to electrically and physically connect the device to the sensor and to another device. The receiving connector includes a terminal to which the information signal is applied. The sensor also comprises a sensing circuit connected to the terminal of the receiving connector for detecting whether the information signal is present at the terminal. The sensing circuit generates an output signal which indicates when a mating connector is received within the receiving connector, and thus whether the electronic device is present, in dependence upon whether the information signal is detected at the terminal. In one embodiment, the sensing circuit comprises a low-pass analog filter connected to a switching transistor for generating a signal at two logic levels. The two logic levels respectively indicate whether or not a mating connector is received within the receiving connector, and thus whether or not the electronic device is present.

REFERENCES:
Switchcraft product reprint, from MCM Electronics, 650 Congress Park Dr., Centerville, OH 45459, catalog 29, p. 169, Jul. 1992.

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