JPS6461153A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS6461153A
JPS6461153A JP62216460A JP21646087A JPS6461153A JP S6461153 A JPS6461153 A JP S6461153A JP 62216460 A JP62216460 A JP 62216460A JP 21646087 A JP21646087 A JP 21646087A JP S6461153 A JPS6461153 A JP S6461153A
Authority
JP
Japan
Prior art keywords
transmission
speed
data
enable signal
equipment
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
JP62216460A
Other languages
Japanese (ja)
Inventor
Shigeru Watabe
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.)
Hitachi Information Systems Ltd
Original Assignee
Hitachi Information Systems Ltd
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 Hitachi Information Systems Ltd filed Critical Hitachi Information Systems Ltd
Priority to JP62216460A priority Critical patent/JPS6461153A/en
Publication of JPS6461153A publication Critical patent/JPS6461153A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To suppress the occurrence of an error due to the difference from data transmission/reception speed, by adding a digital signal to set the transmission speed setting to the transmission enable signal in a proper form in returning the transmission enable signal from the reception side as a response to the transmission request signal from the transmission side. CONSTITUTION:A transmission request signal is transmitted from a communication controller 1 prior to the transmission of data to a data transmitter 2 via a transmission request line 101. The data transmission equipment 2 adds a clock pulse to a transmission enable signal in response to the transmission speed of its own equipment and transmits the result to the communication controller 1 via the transmission enable signal line 102. The communication controller 1 counts the number of clock pulses added to the transmission enable signal within a prescribed time T after the transmission request signal transmission. Then the data is transmitted after the same speed as the reception speed of the data transmission equipment 2 is transmitted to its own equipment as the transmission speed based on the result of counting. Thus, the data transmission speed at the transmission side is set surely to the reception speed at the reception side.
JP62216460A 1987-09-01 1987-09-01 Data transmission system Pending JPS6461153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62216460A JPS6461153A (en) 1987-09-01 1987-09-01 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62216460A JPS6461153A (en) 1987-09-01 1987-09-01 Data transmission system

Publications (1)

Publication Number Publication Date
JPS6461153A true JPS6461153A (en) 1989-03-08

Family

ID=16688838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62216460A Pending JPS6461153A (en) 1987-09-01 1987-09-01 Data transmission system

Country Status (1)

Country Link
JP (1) JPS6461153A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03224987A (en) * 1990-01-31 1991-10-03 Nichibei Co Ltd Electric blind

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03224987A (en) * 1990-01-31 1991-10-03 Nichibei Co Ltd Electric blind

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