JPS5732159A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5732159A
JPS5732159A JP10854280A JP10854280A JPS5732159A JP S5732159 A JPS5732159 A JP S5732159A JP 10854280 A JP10854280 A JP 10854280A JP 10854280 A JP10854280 A JP 10854280A JP S5732159 A JPS5732159 A JP S5732159A
Authority
JP
Japan
Prior art keywords
station
data
radio wave
receiver
call
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
JP10854280A
Other languages
Japanese (ja)
Inventor
Akira Hiroo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10854280A priority Critical patent/JPS5732159A/en
Publication of JPS5732159A publication Critical patent/JPS5732159A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/14—Arrangements for detecting or preventing errors in the information received by using return channel in which the signals are sent back to the transmitter to be checked ; echo systems

Abstract

PURPOSE:To transmit data to a reception side securely by detecting a call from a different station at a base station or a mobile station side and by resending data when the call is detected. CONSTITUTION:A radio wave having a frequency f1 (radio wave f1), when transmitted as a call signal from a mobile station 3 while the radio wave f1 is being transmitted from a base station 1, is converted at a repeater station 2 into a radio wave f2, which is received by a monitoring data receiver 14 provided at the station 1. On receiving the radio wave f2, the receiver 14 sends a signal to an error correcting circuit 12 to instruct the resending of data from a data transmitter-receiver 13. Consequently, the data is resent from the receiver 13, so the transmission to the station 3 is secured.
JP10854280A 1980-08-04 1980-08-04 Data transmission system Pending JPS5732159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10854280A JPS5732159A (en) 1980-08-04 1980-08-04 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10854280A JPS5732159A (en) 1980-08-04 1980-08-04 Data transmission system

Publications (1)

Publication Number Publication Date
JPS5732159A true JPS5732159A (en) 1982-02-20

Family

ID=14487456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10854280A Pending JPS5732159A (en) 1980-08-04 1980-08-04 Data transmission system

Country Status (1)

Country Link
JP (1) JPS5732159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60246884A (en) * 1984-05-16 1985-12-06 工業技術院長 Dyeing of silk fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60246884A (en) * 1984-05-16 1985-12-06 工業技術院長 Dyeing of silk fiber

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