1-bit digital signal processing device, recording device, and re

Adaptive predictive coding with transform domain quantization ba

ADPCM decoder

ADPCM encoding apparatus, ADPCM decoding apparatus and delay...

ADPCM synthesizer without look-up table

ADPCM transcoder

ADSL encoder and decoder

Analog service channel port for digital interface

Apparatus and method for decoding a sequence of digitally encode

Apparatus and method for digital data transmission

Apparatus and method for extending the dynamic range of a...

Apparatus and method for quantizing a digital signal based on qu

Apparatus and method for transmitting punctured or repeated...

Apparatus and method to reduce quantization error

Apparatus and method to reduce quantization error

Apparatus and methods for decoding a predictively encoded...

Apparatus and methods for digital-to-analog conversion

Apparatus and methods for use in transmitting and relieving a di

Apparatus for and method of speech digitizing

Apparatus for converting PCM signal