FIELD: information technology.
SUBSTANCE: adaptive differential pulse-code modulator comprises an analogue speech signal source, a time sampling circuit, a sample converter, a subtractor, an adaptive predictor, a short periodic pulse generator, a univibrator, two time differentiators with an inverting output, an analogue frequency modulator, an analogue signal multiplier, a signal amplitude limiting amplifier, a pulse counter, a shift register, a clock pulse generator, a digital inverter and an integrator.
EFFECT: high quality of reconstructed speech owing to elimination of quantisation noise.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DELTA MODULATOR | 2016 |
|
RU2625394C1 |
| MULTIPLE-CHANNEL DEVICE FOR VOICE SIGNALS TRANSMISSION | 1998 |
|
RU2132593C1 |
| CORRECTING DEVICE | 0 |
|
SU1499507A1 |
| ADAPTIVE ECHO COMPENSATOR | 0 |
|
SU1665520A1 |
| ADAPTIVE DIGITAL FREQUENCY DISCRIMINATOR | 2000 |
|
RU2166773C1 |
| ADAPTIVE DIGITAL CORRECTOR | 0 |
|
SU1083379A1 |
| ADAPTIVE DISCRETE MATCHED FILTER | 0 |
|
SU995284A1 |
| ANALOGUE SIGNAL CODER | 0 |
|
SU1624696A1 |
| ADAPTIVE CORRECTOR OF MULTICHANNEL SIGNAL HAVING ORTHOGONAL CONSTITUENTS | 0 |
|
SU1807571A1 |
| SYSTEM FOR TRANSMITTING AND RECEIVING SIGNALS WITH ADAPTIVE DIFFERENTIAL PULSE-CODDE MODULATION | 0 |
|
SU1058082A1 |
