| 摘要 |
PCT No. PCT/JP85/00035 Sec. 371 Date Sep. 23, 1985 Sec. 102(e) Date Sep. 23, 1985 PCT Filed Jan. 29, 1985 PCT Pub. No. WO85/03396 PCT Pub. Date Aug. 1, 1985.The present invention provides a data transmission method for sending parallel data from a transmitting side to a receiving side. After transmitting an i-th item of data (DTi), the transmitting side sends a high-level data transmission signal (DS) to the receiving side at the expiration of a predetermined period of time (t1). In response to receipt of the high-level data transmission signal (DS), the receiving side reads the i-th item of data (DTi) and sends a high-level data reception signal (DR) to the transmitting side. The transmitting side ends the transmission cycle for the i-th item of data upon receiving the high-level data reception signal (DR). After transmitting the next or (i+1)th item of data (DTi+1), the transmitting side sends a low-level data transmission signal (DS) at the expiration of the predetermined period of time (t1). In response to receipt of the low-level data transmission signal (DS), the receiving side reads the (i+1)th item of data (DTi+1) and sends a low-level data reception signal (DR) to the transmitting side. The transmitting side ends the transmission cycle for the (i+1)th item of data upon receiving the low-level data reception signal (DR). In subsequent data transmission, data are successively transmitted by repeating th i-th and (i+1)th data transmission cycles.
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