There is provided an information processing apparatus, including a signal receiver that receives a signal encoded in such a way that a signal containing a first bit value and a second bit value, wherein the first bit value is represented by first amplitude values, the second value is represented by a second amplitude value, and polarity of the encoded signal amplitude value is reversed in each period, a conversion processor performs conversion to add a delayed signal that is delayed by delaying a signal received by the signal receiver by one period of the received signal, an inversion processor that performs inverse processing of the conversion on the signal output from the conversion processor, and an input data decoder that decodes an input data by determining the first and second values based on the amplitude value of the signal output from the inversion processor.