JPS56129457A - Communication system of full duplex data - Google Patents

Communication system of full duplex data

Info

Publication number
JPS56129457A
JPS56129457A JP3365380A JP3365380A JPS56129457A JP S56129457 A JPS56129457 A JP S56129457A JP 3365380 A JP3365380 A JP 3365380A JP 3365380 A JP3365380 A JP 3365380A JP S56129457 A JPS56129457 A JP S56129457A
Authority
JP
Japan
Prior art keywords
data
data communication
communication devices
full duplex
communication system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3365380A
Other languages
Japanese (ja)
Inventor
Masao Higuchi
Katsuharu Tsukamoto
Yoshikazu Tanaka
Kazuyuki Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd, Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP3365380A priority Critical patent/JPS56129457A/en
Publication of JPS56129457A publication Critical patent/JPS56129457A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1423—Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals

Abstract

PURPOSE:To increase an efficiency in use of communication path, by returning the permissible signal to the line exchange network if the calling data communication device has the data to be transmitted and returning the signal rejecting the connection, if the data is absent. CONSTITUTION:The full duplex communication path set between data communication devices in a data communication system is first set, when both the data communication devices 1, 2 have the data to be transmitted to the opposed data communication devices 2 and 1. After set, since the data communication devices 1 and 2 transmit the data to the opposing data communication devices 2 and 1 at the same time via the entire duplex communication paths, the full duplex communication function is sufficiently utilized and the holding time is reduced.
JP3365380A 1980-03-17 1980-03-17 Communication system of full duplex data Pending JPS56129457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3365380A JPS56129457A (en) 1980-03-17 1980-03-17 Communication system of full duplex data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3365380A JPS56129457A (en) 1980-03-17 1980-03-17 Communication system of full duplex data

Publications (1)

Publication Number Publication Date
JPS56129457A true JPS56129457A (en) 1981-10-09

Family

ID=12392398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3365380A Pending JPS56129457A (en) 1980-03-17 1980-03-17 Communication system of full duplex data

Country Status (1)

Country Link
JP (1) JPS56129457A (en)

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