JPS54111207A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS54111207A
JPS54111207A JP1894778A JP1894778A JPS54111207A JP S54111207 A JPS54111207 A JP S54111207A JP 1894778 A JP1894778 A JP 1894778A JP 1894778 A JP1894778 A JP 1894778A JP S54111207 A JPS54111207 A JP S54111207A
Authority
JP
Japan
Prior art keywords
data
volume
transmission
synchronous
data transmission
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.)
Granted
Application number
JP1894778A
Other languages
Japanese (ja)
Other versions
JPS5750380B2 (en
Inventor
Kenzo Ono
Hirokazu Yoshino
Tsutomu Asabe
Tatsuo Fujita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1894778A priority Critical patent/JPS54111207A/en
Publication of JPS54111207A publication Critical patent/JPS54111207A/en
Publication of JPS5750380B2 publication Critical patent/JPS5750380B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/05—Electric or magnetic storage of signals before transmitting or retransmitting for changing the transmission rate

Abstract

PURPOSE:To adapt a data transmission system to data volume to make an efficient data transmission possible by transmitting data in the start-stop system and the synchronous system in case of small and large data generation volume from the external respectively. CONSTITUTION:In the transmission side, data is transmitted in the start-stop system in case of small data generation volume from the exteranl; and when control part 3 detects that data is increased, a control code which indicates the start of the synchronous transmission is transmitted. Meanwhile, in the receiving side, control part 12 detects the control code and a data volume code, and AND gate 21 is opened for data, which is received continuously, by decoded data volume to receive data dependent upon the synchronous transmission system; and when data receiving in the synchronous system is completed, the recieving mode is automatically returned to the start-stop system mode. As a result, data transmission can be efficiently performed suitably to the change of data volume.
JP1894778A 1978-02-20 1978-02-20 Data transmission system Granted JPS54111207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1894778A JPS54111207A (en) 1978-02-20 1978-02-20 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1894778A JPS54111207A (en) 1978-02-20 1978-02-20 Data transmission system

Publications (2)

Publication Number Publication Date
JPS54111207A true JPS54111207A (en) 1979-08-31
JPS5750380B2 JPS5750380B2 (en) 1982-10-27

Family

ID=11985833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1894778A Granted JPS54111207A (en) 1978-02-20 1978-02-20 Data transmission system

Country Status (1)

Country Link
JP (1) JPS54111207A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6212240A (en) * 1985-06-28 1987-01-21 ノ−ザン・テレコム・リミテツド Data unit and method for non-synchronous data of digital network
JPH0646067A (en) * 1983-02-15 1994-02-18 Unisys Corp Transmission system of serial data

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646067A (en) * 1983-02-15 1994-02-18 Unisys Corp Transmission system of serial data
JPH0646066A (en) * 1983-02-15 1994-02-18 Unisys Corp Encoding system for serial data transmission
JPS6212240A (en) * 1985-06-28 1987-01-21 ノ−ザン・テレコム・リミテツド Data unit and method for non-synchronous data of digital network

Also Published As

Publication number Publication date
JPS5750380B2 (en) 1982-10-27

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