GROUPED BIDIRECTIONAL COMMUNICATION SYSTEM
PURPOSE:To attain economical constitution of devices, by selecting the frequency allocation so as to take one carrier wave as an integer multiple of the other carrier wave, in the system transmitting signals of each group in different directions, respectively. CONSTITUTION:The frequency allocation i...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To attain economical constitution of devices, by selecting the frequency allocation so as to take one carrier wave as an integer multiple of the other carrier wave, in the system transmitting signals of each group in different directions, respectively. CONSTITUTION:The frequency allocation is selected so that the carrier wave of high frequency groups are taken as an integer multiple to the carrier wave of low frequency groups in advance. In transmitter/receiver 1 is provided with a carrier wave oscillator 12, and the other transmitter/receiver 2 obtains the carrier wave to multiply or divide the carriers from the device 1. Thus, the entire device is economized by using only one expensive carrier oscillator. |
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