Electronic tuning device

Music – Accessories – Tuning devices

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

84 101, 84DIG18, 324 79D, G10G 702, G01R 2314

Patent

active

039526259

ABSTRACT:
An Electronic Tuning Device for tuning musical instruments employes a single radio frequency oscillator. Frequency dividers are used to divide the frequency of the radio frequency oscillator (clock) by various divisors so as to produce a series of notes that approximate a desired musical scale. A note selector selects a particular note for use as a reference frequency against which a musical instrument to be tuned can be compared. The note selector also controls means for shifting the frequency of the master oscillator slightly so as to place the frequency of the selected note exactly at its proper position in the desired musical scale. A vernier control is provided by means of which the master oscillator can be altered so as to cause all of the notes to be sharped and flated up to about a half semitone. The generated note, or a sub octave of same, can be used for direct audible comparison with an instrument to be tuned or the selected tone can be divided to a low frequency and used as a frequency reference for deriving a voltage to drive a synchronous motor which is in turn used to drive a stroboscopic disc. In this mode of operation an audio amplifier picks up a signal from the instrument to be tuned and causes a lamp to flash at the frequency that the instrument is sounding, and when the instrument is in exact tune with the selected note, the tone wheel will appear to be standing still.

REFERENCES:
patent: 2584277 (1952-02-01), Long
patent: 2806953 (1957-09-01), Krauss
patent: 3509454 (1970-04-01), Gossel
patent: 3861266 (1975-01-01), Whitaker
patent: 3879684 (1975-04-01), Sanderson

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electronic tuning device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic tuning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic tuning device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1994306

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.