Electronic digital speedometer for a multi-measurand data commun

Details Electronic digital speedometer for a multi-measurand data commun Electronic digital speedometer for a multi-measurand data commun

1987-05-27

1988-10-18

Miska, Vit W.

Boots, shoes, and leggings

324166, 377 20, G01P 348

Patent

active

047792132

ABSTRACT:
A firmware/hardware electronic digital speedometer connected to a vehicle multi-measurand data communications system maintains virtually no flicker in the display of digital numbers in a digital display unit such as a vacuum fluorescent display during movement of a vehicle when no change in speed is apparent. A speed sensor supplies speed information to a first computing unit which establishes an accumulated count of speed during a first interval. Then the first computing unit supplies over a communications link the speed count to a second computing unit at a rate that approximates the update rate of the display unit. The second computing unit processes the speed data in a particular manner to effect the virtually flicker-free updating of the display and improved accuracy.

REFERENCES:
patent: 3936663 (1976-02-01), Taylor et al.
patent: 4257005 (1981-03-01), Hall
patent: 4430612 (1984-02-01), Onitsuka et al.
patent: 4485452 (1984-11-01), Cording et al.
patent: 4648104 (1987-03-01), Yachida et al.
patent: 4667297 (1987-05-01), Kawai

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