Title:
【発明の名称】デ-タ通信方法
Document Type and Number:
Japanese Patent JP2579464
Kind Code:
B2
Abstract:
PURPOSE:To improve transmitting efficiency by transmitting the transmission data composed of plural data frames, and when the transmittion error occurs, discriminating a transmission line defect based upon the receiving condition of a demodulator and controlling the number of pieces of the data frame. CONSTITUTION:A receiving data analyzing part 23 in a communicating control part 20 of a receiver RX detects that an error occurs at reception data based upon a cyclic redundancy check code CRC. A transmitter TX transmits an (n) number of the data frame continuously as one time of the transmission data, and frame number data to show the number of pieces of the frame to be transmitted are included in the first frame. When the transmission of the first data is completed, a response signal to set the occurring condition and error power data for the frame of the then reception error is responded from the receiving device RX to the transmitter TX. When the data error due to the dynamic factor occurs, the transmitter TX decreases the above-mentioned number of the frame. When it is responded that all data frames are received without an error at the prescribed number of times or above, the transmitter TX increases the number of the data frame.
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Inventors:
KUDO SHOZO
Application Number:
JP12124486A
Publication Date:
February 05, 1997
Filing Date:
May 28, 1986
Export Citation:
Assignee:
RICOH KK
International Classes:
H04L1/00; H04L1/16; (IPC1-7): H04L1/00; H04L1/16
Domestic Patent References:
| JP6172432A | ||||
| JP5324718A |
Attorney, Agent or Firm:
Monda Makoto