Patent ID: 7962334

Claim:
A receiving device for receiving a transmission unit signal that is sent from a communication terminal and accommodates a result of dividing, the result of dividing being obtained by quantizing a value based on relative differences between a plurality of sampling values having temporal prior-posterior relationship therebetween, and dividing data produced in a time series in accordance with a result of the quantizing, at the communication terminal, the receiving device comprising: a loss determining device which determines whether or not an amplitude adjustment needs to be made in accordance with a value of an amplitude of a signal waveform indicated by a decoding result of the produced data accommodated in the transmission unit signal; and an adjuster which transparently passes the signal waveform when the loss determining device determines that the amplitude adjustment does not need to be made, and performs the amplitude adjustment to pass the signal waveform when the loss determining device determines that the amplitude adjustment needs to be made, wherein the adjuster includes one of: a first amplitude adjustment executing section that makes the amplitude adjustment by shifting a waveform axis of the signal waveform; a second amplitude adjustment executing section that makes the amplitude adjustment by making an absolute value of the amplitude of the signal waveform smaller than a predetermined reference amplitude; and a third amplitude adjustment executing section that makes the amplitude adjustment by attenuating the amplitude of the signal waveform at a given rate of attenuation.