Boots – shoes – and leggings
Patent
1979-08-07
1981-06-16
Gruber, Felix D.
Boots, shoes, and leggings
324166, 324169, G01P 3488, G01R 2302
Patent
active
042741424
ABSTRACT:
In a detecting apparatus for indicating engine revolutions or vehicle speed, a counter is provided to count up, for a predetermined period of time, the number of pulses produced by an angle sensor. To improve the accuracy of the measurement, the time width during which the pulses are counted can be varied in accordance with a rotational speed of the engine. In this way, a larger measurement time period is provided at lower speeds than at higher speeds.
REFERENCES:
patent: 3525044 (1970-08-01), Richmond
patent: 3553728 (1971-01-01), Frank
patent: 3917927 (1975-11-01), Minton
patent: 3968434 (1976-07-01), Dixon et al.
patent: 4107600 (1978-08-01), McMannis
patent: 4190823 (1980-02-01), Leichle
Binder et al., Car Control by a Central Electronic System, SAE Paper 770001 (1977), pp. 1-7.
Abe Osamu
Furuhashi Toshio
Hirasawa Kotaro
Imai Masumi
Gruber Felix D.
Hitachi , Ltd.
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