Patent ID: 8625639

Claim:
An information processing apparatus comprising: circuitry configured to multiplex a plurality of transmission signals, each in a different frequency band and not containing a DC component, and a power signal supplied from a DC power supply, and generating a multiplexed signal; and a signal cable through which the multiplexed signal, which includes the plurality of transmission signals and the power supply signal as a single, complex signal, is transmitted, wherein the circuitry is further configured to: separate the multiplexed signal transmitted through the signal cable into signals, each in a frequency band of one of the plurality of transmission signals, and a signal in a frequency band of the power signal; multiplex the plurality of transmission signals with the power signal, the plurality of transmission signals obtained by encoding input data that includes mutually different first and second bit values by expressing the first bit value in a form of a plurality of first amplitude values and the second bit value in a form of second amplitude values different from the first amplitude values such that a same amplitude value does not occur consecutively and a polarity of the amplitude value is inverted with each cycle, wherein the first bit value has a data value of one that is expressed by at least three different values of the plurality of first amplitude values and the second bit value has a data value of zero that is expressed by two different values of the second amplitude values; and compare amplitude values of the multiplexed signal with a plurality of threshold values to determine whether the plurality of first amplitude values correspond to the data value of one or the second amplitude values correspond to the data value of zero.