Digital/analog indication unit

Details Digital/analog indication unit Digital/analog indication unit

1993-09-02

1995-11-21

Peng, John K.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340441, 340525, G09F 935

Patent

active

054691370

ABSTRACT:
A digital/analog indication unit which is capable of performing both digital and analog indications of detected value such as vehicle speed or the like, respectively by displaying numerals and rotating an indication needle to a scale, wherein there is no discrepancy between the digital indication and analog indication. The digital/analog indication unit of the present invention includes; a digital indicator having a display device for indicating numerals corresponding to a detected value, an analog indicator having a dial plate with scales provided on the surface thereof, an indication needle, and a pulse motor connected to the indication needle, wherein the indication needle is rotated by the pulse motor to point to one of the scales, and an indication control means which updates the numerals displayed by the digital indicator in accordance with a newly detected value, and activates the pulse motor following the updating operation of the digital indicator to rotate the indication needle to point to a scale of the analog indicator, the scale corresponding to the updated indication of the digital indicator.

REFERENCES:
patent: 4012948 (1977-03-01), Kano et al.
patent: 4250572 (1981-02-01), Yoshida
patent: 4371864 (1983-02-01), Kawasaki et al.
patent: 4392216 (1983-07-01), Tsuji
patent: 4584527 (1986-04-01), Amigo
patent: 4711034 (1987-12-01), Koizumi
patent: 5136516 (1992-08-01), Twombly

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