Method for suppressing quantization noises superimposed on a sin

Details Method for suppressing quantization noises superimposed on a sin Method for suppressing quantization noises superimposed on a sin

1989-06-14

1992-03-24

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

379361, H03K 3013

Patent

active

050994980

ABSTRACT:
A harmonic tone having an amplitude which is significantly lower than a fundamental audible tone is superimprosed on the audible tone to drown out quantization noises for audible tones transmitted in digital telecommunications exchange systems.

REFERENCES:
patent: 3999129 (1976-12-01), Kasson
patent: 4171466 (1979-10-01), Carbrey
patent: 4390754 (1983-06-01), Holberg
patent: 4399535 (1983-08-01), Southard
patent: 4476572 (1984-10-01), Horrall et al.

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