| 摘要 |
In a method and an apparatus for a data transmission in transmission media which vary depending on noises from outside, connected apparatuses, connection methods such as multi-path, or the like, a Hadamard multiplexing/distribution, or a quadrature mirror filter multiplexing/distribution is performed. Also, data is multiplexed by using an orthogonal sequence, the multiplexed data is transmitted to a transparent transmission line, and the data received from the transparent transmission line is distributed by using the orthogonal sequence. Also, data is multiplexed by using the orthogonal sequence, the multiplexed data is interleaved on a frequency axis and a time axis, the interleaved multiplexed data is multiplexed by using the orthogonal sequence, the multiplexed data is distributed by using the orthogonal sequence, the distributed data is deinterleaved on the frequency axis and the time axis, and the deinterleaved data is distributed by using an orthogonal transform.
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