Continuously variable pulsewidth waveform formation device emplo

Details Continuously variable pulsewidth waveform formation device emplo Continuously variable pulsewidth waveform formation device emplo

1990-07-12

1992-02-04

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Counting or dividing in incremental steps

Beam type tube

377 26, 307265, 328 58, 328 63, 328 74, H03K 3037, H03K 505

Patent

active

050862804

ABSTRACT:
A waveform formation device according to the present invention comprises a memory storing rise time data and fall time data related to an output waveform, a first timing generator for producing a set signal at a timing related to the rise time data, and a second timing generator for producing a reset signal at a timing related to the fall time data. A flip flop circuit of the device produces an output signal which rises in response to the set signal and falls in response to the reset signal.

REFERENCES:
patent: 3621403 (1971-11-01), Seiy
patent: 4330751 (1982-05-01), Swain
patent: 4415861 (1983-11-01), Palmquist et al.
patent: 4675546 (1987-06-01), Shaw

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