| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission circuit, a transmission method and a transmission system using the transmission circuit (transmission method) capable of reducing radiation of carrier component without reducing transmission power to satisfy the EMI requirements.SOLUTION: In the transmission circuit or the transmission system using the transmission circuit that transmits a transmission data by using an amplitude transition modulation system (ASK modulation system) for changing amplitude of the carrier wave based on the transmission data, the radiation of the carrier component is reduced by changing the phase of the carrier wave based on the transmission data. |
