Electronic tuning aid with digital readout

Details Electronic tuning aid with digital readout Electronic tuning aid with digital readout

1979-09-12

1981-11-03

Hix, L. T.

Music

Accessories

Tuning devices

84DIG18, 250231R, G10G 702

Patent

active

042979382

ABSTRACT:
An electronic tuning aid with luminous digital readout adapted by structural and functional features to be operational by placement on the body of string and musical instruments such as the guitar. A shiftable photoelectric probe constituting a unitized component of the device is of an optical character uniquely sensitive to both damped and undamped string vibration of slight amplitude to activate included solid-state counting and translating components affording a numeric display of the frequency of individually selected strings. Steel strings are automatically driven in sustained vibration by an electromagnetic drive system affecting only the selected string and timed by such string in a feedback circuit with the probe.

REFERENCES:
patent: 3144802 (1864-08-01), Faber
patent: 3565532 (1971-02-01), Heitmann
patent: 3722353 (1973-03-01), Westhauer
patent: 3766818 (1973-10-01), Prohofsky
patent: 4018124 (1977-04-01), Rosado
patent: 4023462 (1977-05-01), Denov
patent: 4028985 (1977-06-01), Merritt
patent: 4061071 (1977-12-01), Cameron

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