| 摘要 |
An improved modulation circuit and method for TDMA are provided, wherein the transmission data TD in odd-numbered time-slots are processed based on the transmission-window signal TWe with a differential encoder 10o, a timing generator 20o, a filter 30o, an amplitude data generator 40o, a multiplier 50o and an I/Q-discriminator 60o, which are configured as odd-dedicated units, and is output from an adder 71 as transmission signal data IT and QT. The transmission data TD in even-numbered time-slots is processed with a differential encoder 10e and other components, which are configured as even-dedicated units, and is output from the adder 71 in common. Thereby, the appropriate data transmission can be achieved in spite of the decrease of guard bits between a couple of time-slots.
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