Method and apparatus for transmitting sigma delta modulated audi

Details Method and apparatus for transmitting sigma delta modulated audi Method and apparatus for transmitting sigma delta modulated audi

1997-01-30

1998-12-01

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

381 2, H03M 732

Patent

active

058445137

ABSTRACT:
When transmitting a sigma-delta modulated signal produced from plural channel signals through a sigma-delta modulator, the main channel is made to have a different sampling frequency from the sub channel, for enhancing transmission efficiency.

REFERENCES:
patent: 4016370 (1977-04-01), Laoteppitaks et al.
patent: 5359463 (1994-10-01), Shirochi et al.
patent: 5363101 (1994-11-01), Ueki
patent: 5390043 (1995-02-01), O'Byrne
patent: 5422913 (1995-06-01), Wilkinson
patent: 5506907 (1996-04-01), Ueno et al.

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