Codec apparatus

Details Codec apparatus Codec apparatus

1994-05-19

1997-05-27

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

Data rate conversion

341122, H03M 700

Patent

active

056336330

ABSTRACT:
A codec apparatus is for converting an analog signal to a digital signal, and for decoding the digital signal to an analog signal. The codec apparatus includes a detection device for discriminating a frequency bandwidth of the analog signal, and a changing device for changing a sampling frequency of the digital signal based upon a signal from the detection device. The sampling frequency of a digital signal can be changed according to a frequency bandwidth of an analog signal. This arrangement can prevent the sampling frequency from being set excessively high.

REFERENCES:
patent: 4630300 (1986-12-01), Kang et al.
patent: 4755795 (1988-07-01), Page
patent: 4855743 (1989-08-01), Hester
patent: 5300894 (1994-04-01), Myer et al.

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