Error processing method of ADPCM voice transmission system and a

Details Error processing method of ADPCM voice transmission system and a Error processing method of ADPCM voice transmission system and a

1996-04-10

1998-07-14

Baker, Stephen M.

Excavating

371 572, 375254, H04L 100, H04L 120

Patent

active

057815704

ABSTRACT:
Reception signal strength of ADPCM voice data in a transmission frame is detected every ADPCM voice data in an RSSI detecting section (2), and when a base band processing section (3) effects decision of existence of error regarding ADPCM voice data of a reception frame, only for the ADPCM voice data with the reception signal strength less than the predetermined value, the difference value is made small or made zero in an ADPCM voice data conversion processing unit (7) and then the value is decoded in an ADPCM decoding processing unit (8). ADPCM data without error are decoded as it is.

REFERENCES:
patent: 4967413 (1990-10-01), Otani
patent: 5309443 (1994-05-01), Schorman
patent: 5383202 (1995-01-01), Edgar et al.

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