Digital transmitter with variable resolution as a function of sp

Details Digital transmitter with variable resolution as a function of sp Digital transmitter with variable resolution as a function of sp

1987-10-16

1989-09-12

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

Condition responsive

34087001, 34087039, 36472405, H04Q 902

Patent

active

048664359

ABSTRACT:
A digital transmitter with an analog sensor uses an integrating analog-to-digital (A/D) converter to digitize the analog signal from the sensor. The A/D converter produces a digital output which is a continuous, non-rezeroed integrated average of the analog signal, so that the integrated average of the digital output over time does not contain inherent quantization errors. A microcomputer system digitally filters the signal from the A/D converter, and then uses the digitally filtered signal to produce the transmitter output signal. By varying the response time of the digital filter, the response time and resolution of the transmitter can be varied.

REFERENCES:
patent: 3646538 (1972-02-01), Frick
patent: 4087796 (1978-05-01), Brown
patent: 4623800 (1986-11-01), Price

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