Electronic metronome

Details Electronic metronome Electronic metronome

1976-09-17

1978-05-23

Jackmon, Edith S.

Communications: electrical

Land vehicle alarms or indicators

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

84484, 340366D, G04F 502, G10B 1500

Patent

active

040903559

ABSTRACT:
An electronic metronome has a visual indicator consisting of a package in which a plurality of different light color LED chips are mounted close to each other. Down-beat and up-beat are indicated as different color emissions from a single spot.

REFERENCES:
patent: 3818693 (1974-06-01), Allard
patent: 3898790 (1975-08-01), Takamune et al.
patent: 3901121 (1975-08-01), Kleiner
patent: 4014167 (1977-03-01), Hasegawa et al.

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