A PORTABLE TERMINAL FOR THE PERSONAL DIGITAL CELLULAR (PDC) TELEPHONE SYSTEM

被引：0
|
作者：
NAKAMURA, T
FUKUDA, E
TODA, Y
机构：
来源：
FUJITSU SCIENTIFIC & TECHNICAL JOURNAL | 1994年 / 30卷 / 01期
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D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have developed a new portable telephone terminal for personal digital cellular (PDC) systems. This compact, high-quality digital telephone incorporates many new techniques, including pi/4-shifted QPSK modulation with 3-slot TDMA and 11.2-kbps VSELP voice coding. We kept the power consumption low by using burst-shaped modulation with a high-efficiency linear power amplifier, a direct phase quantizing demodulator, and intermittent control in the baseband timing control circuit. The terminal also uses state-of-the-art packaging and mounting technologies.
引用
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页码：84 / 90
页数：7
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