Modem Algorithms

G.165 Detect

Calling Number Delivery Number Generate and Detect C55x

DESCRIPTION

In telecommunications systems, it is often necessary to detect the presence of a voice-band modem signal. In particular, when using a line echo canceller, it is desirable to disable certain aspects of echo cancellers or echo suppressors. Modems therefore precede their transmissions with a disable tone. These tones are described in ITU recommendations G.164 and G.165. The ADT G.165 Tone Detector .pdf detects both of the aforementioned disable tones.

FEATURES

AVAILABILITY

ADT G.165 Detect is available on the TMS320C5000™ DSP Platform C54x and C55x™DSP Generations

SPECIFICATIONS

G.165 Detect C55X

All Memory usage is given in units of bytes.

 
MIPS (Peak loading)
Program Mem
Data Mem
Per Channel Data Mem
Tone Disabler
0.08
1618
352
88

Last update: 07/12/2005

Functions

G165DET_ADT_initG165Detect(…) Initializes G165 Detector channel

G165DET_ADT_g165Detect (…) ExecutesG165 detector function

G165DET_ADT_g165ReleaseCheck(…) Executes G165 Release Check

 

Adaptive Digital Technologies, Inc.
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