| 摘要 |
Larger data transmission capacities and higher-rate data transmission are accompanied by increased power consumptions, characteristic degradations due to signal distortions, degradations of reliability of cables and connectors, increased costs, and by tightened limitations, such as those of positioning of components to be mounted. Such various problems are solved. There are included wireless communication means for transmitting first category information, and wire communication means for transmitting second category information. The first and second category information are transmitted in parallel by the wireless and wire communication means.
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