DIGITAL DATA MODULATOR, TRANSMITTER, RECEIVER AND THEIR METHOD

摘要

PROBLEM TO BE SOLVED: To realize an ASK modulation wave which can be demodulated easily and can supply power stably. SOLUTION: The digital data modulator (30) comprises a circuit (31) for mirror code modulating digital data, a circuit (32) for differentiating digital data modulated by the modulation circuit (31), and a circuit (33) for inverting digital data differentiated by the differentiating circuit (32).