| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost transmitter receiver capable of achieving high-quality data transmission when transmitting data via a transmission path, without evaluating a state of the transmission path or executing a special process according to the evaluation results. <P>SOLUTION: A transmitter receiver has a transmitting part 1 and a receiving part 2. The transmitting part 1 consists of a modulator 10 that modulates a bit sequence, and frequency component inverting means 11 and 13 that acquires a signal obtained by reversing a frequency component of a first modulation signal α, which is generated from an output signal of the modulator 10, on a frequency axis as a second modulation signal β. The transmitting part 1 outputs the first modulation signal α and the second modulation signal β time-sequentially. The receiving part 2 consists of a separation part 23 that separates a first received signal corresponding to the first modulation signal α and a second received signal corresponding to the second modulation signal β from a received signal, frequency reverse inverting means 24 and 26 that acquires a signal xri' obtained by inverting a frequency component of the second received signal on the frequency axis as a reversed inverted signal, an average signal acquisition part 29 that acquires an average signal that is an average of the first received signal and the reversed inverted signal, and a demodulator 31 that demodulates the bit sequence from the average signal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
