发明名称 |
TDMA TRANSMISSION BURST CONTROL SYSTEM |
摘要 |
PURPOSE:To obtain an economical control system by superimposing a DC voltage on a transmission burst signal from a line terminator, transmitting the result and allowing a radio transmission/reception device to detect to prevent interference/disturbance due to mis-transmission with a simple circuit while using a high frequency. CONSTITUTION:A base band signal received and demodulated by a reception section 21 of a radio transmitting/receiving device 20 is transmitted to a reception rerminating section 11 of a line terminator 10 via a transmission line, a reference pulse included in a reception signal is extracted and fed to a timing generating section 13. A DC superimposing section 16 superimposes a DC voltage on a transmission burst control signal 100 from a generating section 13 and transmits the result to a DC separating section 28. A DC detecting section 29 separates/detects respectively the DC component superimposed. A switch control section 26 transmits a control pulse 103 based on a confirming signal 101 from the detection section 29, controls a transmission switch 23 to pass an output of a transmission section 22 only for the period of a timing pulse to transmit a radio wave. |
申请公布号 |
JPS613541(A) |
申请公布日期 |
1986.01.09 |
申请号 |
JP19840123431 |
申请日期 |
1984.06.15 |
申请人 |
NIPPON DENKI KK;NIPPON DENSHIN DENWA KOSHA |
发明人 |
YANAGIUCHI YOUICHI;TANAKA KAZUNORI |
分类号 |
H04J1/16;H04J3/00;H04J99/00;(IPC1-7):H04J1/16 |
主分类号 |
H04J1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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