System for the quantization of signals

Details System for the quantization of signals System for the quantization of signals

1982-02-16

1984-08-28

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

333 14, 375 33, H04B 1204

Patent

active

044687907

ABSTRACT:
A system for quantizing signals having a transmitter section and a receiver section interconnected by a transmission path. The transmitter section includes a quantizer, a difference producer, and a filter. An input signal is differenced with a feedback signal, filtered and quantized to produce a first quantized output signal. The first quantized output signal is filtered to produce the feedback signal. The filtered difference signal is further differenced with the quantized output signal to produce a second difference signal which is quantized to produce a second quantized output signal containing the quantizing noise of the first quantized output signal. In the receiver section a first received signal (proportional to the first quantized output signal) is summed with a second received signal (proportional to the second quantized output signal) to produce a sum signal. The first received signal and the sum signal are each filtered and summed to produce a receiver output signal substantially free of quantizing noise.

REFERENCES:
patent: 3573364 (1971-04-01), Shimamura
patent: 4099122 (1978-07-01), Buul

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