Cellular phone, and codec circuit and receiving call sound...

Telecommunications – Wireless distribution system – Combined with diverse art device

Reexamination Certificate

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Reexamination Certificate

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07933548

ABSTRACT:
Provided is a cellular phone enabling improvement of the level of a sense of hearing of a pseudo noise which is generated when there exists no voice signal. In the cellular phone, frame type information included in a baseband signal “in” is identified by the frame type identification unit71and when the frame type information represents pseudo noise information, a pseudo noise signal generated by the AMR (Adaptive Multi-Rate) decoder72with an internal pseudo noise generator is output to the call receiver unit43with its level reduced by a predetermined amount by the signal level change amount calculation unit74and the signal level change unit73, while when the frame type information represents a voice signal, the voice signal decoded by the AMR (Adaptive Multi-Rate) decoder72with an internal pseudo noise generator is output to the call receiver43with its level unchanged.

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Japanese Official Action dated May 7, 2010, together with English-language translation.

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