Data transmission method, data reception method, data...

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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C370S200000, C370S203000, C370S209000, C375S219000, C375S259000

Reexamination Certificate

active

10513620

ABSTRACT:
Input data is separated into a first data row and a second data row by a unit of a predetermined symbol. One of a plurality of orthogonal codes is selected in accordance with the separated second data row. The first data row is diffused using the selected code; and the diffused first data row is modulated and transmitted. When received, the signals are individually inversely diffused using the same plurality of orthogonal codes. An inversely diffused signal using a correct orthogonal code is selected and demodulated to obtain a first receiving data row. A second receiving data row corresponding to the correct orthogonal code is obtained; and the first and second receiving data rows are combined to obtain the received data.

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Bob Pearson, “Complementary Code Keying Made Simple”, Application Note 9850, [online]. May 2002.
“Nikkei NETWORK”, Dec. 19, 2001, 2002 Nen 1 Gatsugo, pp. 68 to 69.

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