Music – Accessories – Tuning devices
Patent
1980-06-11
1983-01-25
Witkowski, Stanley J.
Music
Accessories
Tuning devices
84DIG18, 324 79D, G01R 2314, G10G 702
Patent
active
043696872
ABSTRACT:
A pitch sensor for facilitating more accurate tuning of instruments comprises: a reference pitch pulse generator, a saw-tooth generator, a sensing probe, a probe output amplifier, a modulator, and ouput means. The reference pitch pulse generator further comprises an oscillator, a divider chain, gates, and first and second pulse drivers. According to a specific embodiment of the present invention, the sensing probe is a magnetic probe, the oscillator is a crystal oscillator, the divider chain is a decimal divider chain, and the output means is a speaker. Accordingly, the saw-tooth generator is responsive to the reference pitch pulse generator; the probe output amplifier is responsive to the magnetic probe; the modulator is jointly responsive to the saw-tooth generator and to the probe output amplifier; and the speaker is responsive to the modulator. A feature of the present invention is the use of the saw-tooth generator to drive the modulator.
REFERENCES:
patent: 2584277 (1952-02-01), Long
patent: 2806953 (1957-09-01), Krauss
patent: 2924776 (1960-02-01), Peterson
patent: 2958250 (1960-11-01), Poehler
patent: 3472116 (1969-10-01), Schott
patent: 3585898 (1971-06-01), Davidson
patent: 3675529 (1972-07-01), Van der Woerd
patent: 3688010 (1972-08-01), Freeman
patent: 3722352 (1973-03-01), Ihrke et al.
patent: 3879684 (1975-04-01), Sanderson
patent: 3952625 (1976-04-01), Peterson
patent: 3968719 (1976-07-01), Sanderson
patent: 3991645 (1976-11-01), Luce et al.
patent: 4019419 (1977-04-01), Yoshikawa et al.
patent: 4023462 (1977-05-01), Denov et al.
patent: 4028985 (1977-06-01), Merritt
patent: 4058044 (1977-11-01), Murakami
patent: 4077298 (1978-03-01), Kondo
patent: 4122751 (1978-10-01), Calvin
patent: 4142434 (1979-03-01), Gross
Oliveras R. Martin
Witkowski Stanley J.
LandOfFree
Pitch sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pitch sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pitch sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1619261