Finely adjustable signal wave forming circuit including compleme

Details Finely adjustable signal wave forming circuit including compleme Finely adjustable signal wave forming circuit including compleme

1993-06-21

1995-05-23

Malzahn, David H.

Boots, shoes, and leggings

G06F 102

Patent

active

054187346

ABSTRACT:
A variable wave forming circuit is provided which produces signals of various waveforms (e.g., sine, triangular or trapezoidal waves) and various frequencies. A random access memory (memory means) 121 to store wave formation information on waveform is provided. According to the wave formation information stored in the memory means, the updating or keeping of a digital value in an increment/decrement circuit 123 is controlled and the digital value is digital/analog-converted by a digital/analog (D/A) conversion circuit 124, which is controlled by a digital value control means that includes the increment/decrement circuit 123. By writing appropriate wave formation information into the memory means, it is possible to produce signals of desired waveforms.

REFERENCES:
patent: 4225936 (1980-09-01), Lesche
patent: 4342245 (1982-08-01), Gross
patent: 5220523 (1993-06-01), Yoshida et al.
patent: 5258937 (1993-11-01), Blackmon
Electronic Components, published by Seiko Instruments Inc., section of Tone Generator S-7116 A. (Provided in Japanese with English translation attached) pp. 1-6.
Travis, Tim E. "Incremental Lookup Tables Reduce Rom Size," The Electronic Engineer, vol. 31, No. 3, Mar. 1972, pp. 49-50 (English).
Cukier, M. "Programmable Digital Frequency Synthesizer," IBM Technical Disclosure Bulletin, vol. 24, No. 1B, Jun. 1981, pp. 512-513 (English).

Affiliated with

Also associated with

Rating

Finely adjustable signal wave forming circuit including compleme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Finely adjustable signal wave forming circuit including compleme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Finely adjustable signal wave forming circuit including compleme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2145275