Boots – shoes – and leggings
Patent
1984-09-07
1987-10-20
Krass, Errol A.
Boots, shoes, and leggings
324 73AT, 340515, 364578, 364580, 371 25, G06G 748, G01R 1512
Patent
active
047018674
ABSTRACT:
An electric testing device is provided for the final testing of vehicle combination instruments. The vehicle combination instruments comprise display means (1-7) consisting of segments, a display control in a microcomputer (8) for activating the segments as a function of measured values, for analog measured values an analog-digital converter (14) arranged in front of the display control, and possibly an input network (13) arranged in front of said converter. The testing device and combination instruments are intended for final testing in a plurality of final test phases. Tolerance values of a critical display value are stored for each measurement value in the microcomputer (8). These tolerance values can be compared, in a first final test phase of a manually actuatable final-test operating mode, with a simulated measurement value which is fed into the microcomputer via the analog-digital converter and possibly the resistance network. A display value which represents the result of the comparison and is also fed into the microcomputer is transmitted, as a function of the result of the comparison, to the display means (3). Predetermined segment combinations can then be activated in succession by the display control in further final-test phases by operating a switch of the testing device. In the latter, there are provided equivalent resistors (35-37) which simulate the measurement value, as well as switches (33, 34) for calling up the final-test operating mode and for the further switching of the final-test phases.
REFERENCES:
patent: 4055801 (1977-10-01), Pike et al.
patent: 4118688 (1978-10-01), Glennon
patent: 4207610 (1980-06-01), Gordon
patent: 4300205 (1981-11-01), Tansuwan
patent: 4339801 (1982-07-01), Hosaka et al.
patent: 4433413 (1984-02-01), Fasang
patent: 4517839 (1985-05-01), Van Dyke
patent: 4539641 (1985-09-01), Kawashimo et al.
patent: 4554636 (1985-11-01), Maggi et al.
Farber Martin A.
Krass Errol A.
Teska Kevin J.
VDO Adolf Schindling AG
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