Boots – shoes – and leggings
Patent
1985-03-07
1988-05-17
Harkcom, Gary V.
Boots, shoes, and leggings
375 44, 375 46, 332 9R, 332 16R, G06F 102, H03C 300, H03K 700
Patent
active
047455667
ABSTRACT:
An angle modulated periodic waveform is synthesized by generating three digital number sequences. In a first number sequence, one number thereof is generated on each occurrence of a periodic clock signal and has a magnitude which is a selected first periodic function of the number of prior occurring clock signals. In a second number sequence, one number thereof is generated on each occurrence of the clock signal and has a magnitude which is a selected second function of prior occurring numbers of the first number sequence and an applied constant carrier waveform frequency parameter. Each number of the second number sequence is added as it is generated to a stored second address number. In the third number sequence, one number thereof is generated on each occurrence of the clock signal and has a magnitude which is a selected third periodic function of the stored second address number. Each number of the third number sequence is converted to a voltage of proportional magnitude by a digital-to-analog converter, the output of which includes the synthesized angle modulated waveform. The second function may be selectively adjusted by application of an external control signal such that the output waveform may exhibit either frequency or phase modulation.
REFERENCES:
patent: 4114189 (1978-09-01), Davis
patent: 4134072 (1979-01-01), Bolger
patent: 4249447 (1981-02-01), Tomisawa
patent: 4342245 (1982-08-01), Gross
patent: 4438503 (1984-03-01), White et al.
patent: 4558282 (1985-12-01), Lowenschuss
patent: 4625318 (1986-11-01), Snyder
patent: 4628286 (1986-12-01), Nossen
T. S. Kinsel et al., "A Digital Signal Generator", IEEE Micro, vol. 1, No. 4, Nov. 1981, pp. 6-15.
Dellett John P.
Harkcom Gary V.
Hulse Robert S.
Nguyen Long Thanh
Tektronix Inc.
LandOfFree
Angle modulated waveform synthesizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Angle modulated waveform synthesizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Angle modulated waveform synthesizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1885966