Pulse generator for producing the harmonic equivalent of a sawto

Music – Instruments

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

84 121, 84DIG9, 307261, 307266, 307295, 328167, G10H 112, G10H 512

Patent

active

042481210

ABSTRACT:
An electronic organ tone generating technique produces a harmonic equivalent of a sawtooth wave. In one embodiment square waves generated by a conventional tone generator are applied to a one shot multivibrator, the output of which is a series of narrow rectangular pulses having a flat harmonic spectrum with both even and odd harmonics present. The narrow rectangular pulses are applied to a 3db per octave filter to produce a waveform, the harmonic content of which is equivalent to that of a sawtooth wave. In this embodiment, the pulse width remains constant regardless of the frequency of the pulse train. In a second embodiment, the duty cycle at each octave when moving up the keyboard is doubled to compensate for amplitude falloff which may occur in the filtered signal.

REFERENCES:
patent: 3443463 (1969-05-01), Campbell
patent: 3505461 (1970-04-01), Omura et al.
patent: 3532799 (1970-10-01), Kameoka et al.
patent: 3885489 (1975-05-01), Sasaki
patent: 3930429 (1976-01-01), Hill
patent: 3992973 (1976-11-01), Howell
patent: 4002095 (1977-01-01), Mantani
patent: 4104946 (1978-08-01), Peterson
patent: 4189970 (1980-02-01), Woron

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

Pulse generator for producing the harmonic equivalent of a sawto does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulse generator for producing the harmonic equivalent of a sawto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse generator for producing the harmonic equivalent of a sawto will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-545899

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