Pulse width modulation decoder

Details Pulse width modulation decoder Pulse width modulation decoder

1991-07-15

1992-12-29

Hoff, Marc

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341144, H03M 182

Patent

active

051755491

ABSTRACT:
The present invention relates to a pulse width modulation (PWM) decoder, and more particularly to a PWM decoder which demodulates a pulse width modulated signal for proper interface with the operational characteristics of an object to be controlled. The present invention includes a PWM input terminal for receiving a PWM signal, an integrator for converting the PWM signal to a linear analog signal, and a transfer characteristic converter for changing the slope of the transfer characteristic of the integrator, so that a microcomputer can be interfaced with a signal processor without changing the microcomputer's internal design.

REFERENCES:
patent: 4233591 (1980-11-01), Murata et al.
patent: 4573039 (1986-02-01), Suzuki et al.

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