Test system for electronic devices with radio frequency signatur

Details Test system for electronic devices with radio frequency signatur Test system for electronic devices with radio frequency signatur

1987-01-28

1989-03-21

Atkinson, Charles E.

Excavating

G01R 328

Patent

active

048150770

ABSTRACT:
A test system for comparatively analyzing a complex signal indicative of the operational status of an electronic device to be tested includes means for sampling a signal whose characteristics are indicative of the unknown operational status of the electronic device to produce a comparison data base. The comparison data base is processed to produce comparison transform coefficients. These transform coefficients are compared with a set of reference transform coefficients, representative of a desired operational status of the device, to determine the actual operational status of the device. The sampling means includes a conductive element capacitively coupled to the device and permanently mounted in a fixed spatial relationship with the device.

REFERENCES:
patent: 3975680 (1976-08-01), Webb
patent: 4176780 (1979-12-01), Sacher et al.
patent: 4488301 (1984-12-01), Nasuta et al.
patent: 4510572 (1985-04-01), Reece et al.
patent: 4583042 (1986-04-01), Riemer
patent: 4622652 (1986-11-01), Zumchak et al.
patent: 4709366 (1987-11-01), Scott et al.

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