Delta modulator/demodulator with improved tracking of rapidly va

Details Delta modulator/demodulator with improved tracking of rapidly va Delta modulator/demodulator with improved tracking of rapidly va

1985-04-18

1986-12-30

LaRoche, Eugene R.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

329104, 375 27, 375 94, H03K 700, H03K 900

Patent

active

046331964

ABSTRACT:
In a delta modulator/demodulator incorporating continuously variable slope circuitry (8, 9, 10), the current passed to an integrator (3) to increase its gain, is squared by a squaring circuit (13) in order to increase the sensitivity of the modulator/demodulator to fast rising and falling waveforms and high frequencies.

REFERENCES:
patent: 3706944 (1972-12-01), Tewksbury
patent: 3748586 (1973-07-01), Johnson et al.
Motorola data book, "Linear Interface Integrated Circuits", 1979--relating to a continuously variable slope delta modulator/demodulator integrated circuit (MC3417, MC3517, MC3418, MC3518).

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