JPS57112154A - Broadcasting system for loop switching network - Google Patents

Broadcasting system for loop switching network

Info

Publication number
JPS57112154A
JPS57112154A JP18731880A JP18731880A JPS57112154A JP S57112154 A JPS57112154 A JP S57112154A JP 18731880 A JP18731880 A JP 18731880A JP 18731880 A JP18731880 A JP 18731880A JP S57112154 A JPS57112154 A JP S57112154A
Authority
JP
Japan
Prior art keywords
data
transmission line
broadcasting communication
communication
transmitted
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
JP18731880A
Other languages
Japanese (ja)
Inventor
Takashi Suzuki
Yosuke Honda
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
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18731880A priority Critical patent/JPS57112154A/en
Publication of JPS57112154A publication Critical patent/JPS57112154A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To use effectively communication channels of a loop transmission line, by using a single channel to realize broadcasting communication. CONSTITUTION:In the normal communication, receiving data DR is received by a receiving buffer 51 and is led into a terminal 2. Transmission data DS is transmitted onto the transmission line after stored in a transmission buffer 52 from the terminal 2. Meanwhile, in the broadcasting communication, a broadcasting communication control signal S becomes high to take receiving data DR into the receiving buffer 51, and a gate 41 is opened to transmit data as transmission data DS onto the transmission line. At this time, a gate 43 is closed, and therefore, information from terminals is not transmitted. Thus, data transmitted from a broadcasting communication request terminal is transferred on the loop transmission line without disappearing in each exchange, and thus, the broadcasting communication on a signal channel is possible.
JP18731880A 1980-12-29 1980-12-29 Broadcasting system for loop switching network Pending JPS57112154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18731880A JPS57112154A (en) 1980-12-29 1980-12-29 Broadcasting system for loop switching network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18731880A JPS57112154A (en) 1980-12-29 1980-12-29 Broadcasting system for loop switching network

Publications (1)

Publication Number Publication Date
JPS57112154A true JPS57112154A (en) 1982-07-13

Family

ID=16203900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18731880A Pending JPS57112154A (en) 1980-12-29 1980-12-29 Broadcasting system for loop switching network

Country Status (1)

Country Link
JP (1) JPS57112154A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228444A (en) * 1983-06-10 1984-12-21 Canon Inc Communication system
JPS6198047A (en) * 1984-10-18 1986-05-16 Sanyo Electric Co Ltd Data transmission system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228444A (en) * 1983-06-10 1984-12-21 Canon Inc Communication system
JPS6198047A (en) * 1984-10-18 1986-05-16 Sanyo Electric Co Ltd Data transmission system

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