A line powered coder/decoder (codec)

Details A line powered coder/decoder (codec) A line powered coder/decoder (codec)

H - Electricity

04

M

H04M 19/00 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2469329

The present invention relates to a line powered COder/DECoder (codec). The codec is comprised of a fine powered analog-to-digital converter and a line powered digital-to-analog converter. A DC current measurement module is provided to determine an amount of current available for use from a telephone line in an off-hook condition. The analog-to-digital converter and the digital-to-analog converter are each adapted to be maintained in a reset condition when the DC current measurement module determines that insufficient current is available from the telephone line in the off-hook condition.

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