Excavating
Patent
1979-12-17
1984-06-19
Smith, Jerry
Excavating
364400, 371 29, G06F 1132
Patent
active
044556535
ABSTRACT:
An appliance comprising a programmed digital processor having an integral test procedure and input and output terminals for connection to further parts of the apparatus, including input means and display means. In order to test the input and output terminals of the signal processor and the connections to further parts of the apparatus, further connections are provided from input and/or output terminals of the signal processor, via a plurality of gates which are activated by the signal processor via a further terminal thereof, to other input and/or output terminals of the signal processor. When the test procedure is activated, an indicator indicates whether or not the tested terminal and/or connection is in good order.
REFERENCES:
patent: 4034194 (1977-07-01), Thomas et al.
patent: 4058316 (1977-11-01), Miller
patent: 4158431 (1979-06-01), Van Bavel et al.
patent: 4200224 (1980-04-01), Flint
Le Gars Jacques
Losset Martine
Remery Michel
Franzblau Bernard
Mayer Robert T.
Smith Jerry
U.S. Philips Corporation
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