JPS53123602A - Data transmission unit - Google Patents

Data transmission unit

Info

Publication number
JPS53123602A
JPS53123602A JP3762877A JP3762877A JPS53123602A JP S53123602 A JPS53123602 A JP S53123602A JP 3762877 A JP3762877 A JP 3762877A JP 3762877 A JP3762877 A JP 3762877A JP S53123602 A JPS53123602 A JP S53123602A
Authority
JP
Japan
Prior art keywords
data transmission
transmission unit
answerback
successful
checking
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
JP3762877A
Other languages
Japanese (ja)
Other versions
JPS5746696B2 (en
Inventor
Kunio Suzuki
Seiichi Yasumoto
Takeshi Nakano
Masakazu Okada
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP3762877A priority Critical patent/JPS53123602A/en
Publication of JPS53123602A publication Critical patent/JPS53123602A/en
Publication of JPS5746696B2 publication Critical patent/JPS5746696B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE: To make it possible to transmit the mass data effectively with a high reliability by checking the answerback among equipments connected via stations in a loop line to become aware whether the transmission is successful or not.
COPYRIGHT: (C)1978,JPO&Japio
JP3762877A 1977-04-04 1977-04-04 Data transmission unit Granted JPS53123602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3762877A JPS53123602A (en) 1977-04-04 1977-04-04 Data transmission unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3762877A JPS53123602A (en) 1977-04-04 1977-04-04 Data transmission unit

Publications (2)

Publication Number Publication Date
JPS53123602A true JPS53123602A (en) 1978-10-28
JPS5746696B2 JPS5746696B2 (en) 1982-10-05

Family

ID=12502893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3762877A Granted JPS53123602A (en) 1977-04-04 1977-04-04 Data transmission unit

Country Status (1)

Country Link
JP (1) JPS53123602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769954A (en) * 1980-10-20 1982-04-30 Ricoh Co Ltd Loop type packet communication system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118996A (en) * 1982-12-27 1984-07-09 東京瓦斯株式会社 Method and apparatus for embedding pipe
JPS59122699A (en) * 1982-12-27 1984-07-16 東京瓦斯株式会社 Method and device for burying pipe through non-cut-and-covermethod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769954A (en) * 1980-10-20 1982-04-30 Ricoh Co Ltd Loop type packet communication system

Also Published As

Publication number Publication date
JPS5746696B2 (en) 1982-10-05

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