发明名称 DATA COMMUNICATION APPARATUS AND FACSIMILE
摘要 PROBLEM TO BE SOLVED: To correct a communication error, if any, without starting the retrain procedure, the primary procedure and the control channel synchronizing procedure, thereby reducing the communication time and hence the communication cost. SOLUTION: A transmit side facsimile 1 based on the G3 facsimile transmission procedure ITU-T Recommendation T.30 Appendix F, using the ITU-T Recommendation V.34 semi-duplex modulation system, has a means for detecting a partial page request signal (PPR) sent at a specified intervals from a receive side facsimile 2 based on the same recommendation and for deciding whether the correction of facsimile picture data continues after detecting the signal PPR at the specified intervals, and a means transmitting a correction continue signal (CTC) having information showing the data signaling rate for retransmitting the facsimile information data on a primary channel.
申请公布号 JP2003134316(A) 申请公布日期 2003.05.09
申请号 JP20010327794 申请日期 2001.10.25
申请人 RICOH CO LTD 发明人 ITO MASANORI
分类号 H04N1/32;H04L29/08;(IPC1-7):H04N1/32 主分类号 H04N1/32
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