Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1995-08-03
1997-07-29
O'Shea, Sandra L.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
324171, 324156, 361752, G01R 104, G01P 348, G01P 354
Patent
active
056525087
ABSTRACT:
A collective drive IC having a drive circuit for driving an electronic integrated distance indicator that indicates distance travelled by a vehicle is mounted on a wiring board together with the electronic integrated distance indicator. Drive circuits for driving a speedometer for indicating travel speed of the vehicle and a tachometer for indicating the number of revolutions of an engine are incorporated in the collective drive IC. The wiring board that has the collective drive IC and the electronic integrated distance indicator is accommodated in a single case to form an odometer unit. The odometer unit is releasably mounted on a meter case to which a main wiring board is fixed.
REFERENCES:
patent: 4954807 (1990-09-01), Fleischer et al.
patent: 5406303 (1995-04-01), Salmon et al.
O'Shea Sandra L.
Patidar Jay M.
Yazaki -Corporation
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