JPS5730437A - Block data transmission system - Google Patents

Block data transmission system

Info

Publication number
JPS5730437A
JPS5730437A JP10356580A JP10356580A JPS5730437A JP S5730437 A JPS5730437 A JP S5730437A JP 10356580 A JP10356580 A JP 10356580A JP 10356580 A JP10356580 A JP 10356580A JP S5730437 A JPS5730437 A JP S5730437A
Authority
JP
Japan
Prior art keywords
synchronizing
block
frame
transmitted
data
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
JP10356580A
Other languages
Japanese (ja)
Other versions
JPS6228619B2 (en
Inventor
Hideo Hashimoto
Hiroshi Kodera
Hiroshi Yasuda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10356580A priority Critical patent/JPS5730437A/en
Publication of JPS5730437A publication Critical patent/JPS5730437A/en
Publication of JPS6228619B2 publication Critical patent/JPS6228619B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/044—Speed or phase control by synchronisation signals using special codes as synchronising signal using a single bit, e.g. start stop bit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L2007/045—Fill bit or bits, idle words

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To increase the degree of freedom of the selection of a synchronous pattern and to simplify a synchronous detecting method by transmitting a block-synchronizing flag and block data following it from a frame-synchronizing position successively. CONSTITUTION:Synchronizing flags of data blocks each consisting of (n) bits are transmitted from time slots in phase with a frame-synchronizing bit #1. One frame consists of (m) time slots, and n>m, so one block is transmitted by using more than one frame. When one-block data is transmitted and then there is no data block to be transmitted next, an idle pattern is sent to a transmission line and when transmitted data is generated, the next block is sent from the earliest frame-synchronizing position (#l-1). At a reception side, the detecting operation for the synchronizing flag is started at a frame-synchronizing position and when the synchronizing flag is detected, the synchronizing-flag detection operation is interrupted during the period of block data reception. Once the idle pattern is detected, the operation is restarted.
JP10356580A 1980-07-30 1980-07-30 Block data transmission system Granted JPS5730437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10356580A JPS5730437A (en) 1980-07-30 1980-07-30 Block data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10356580A JPS5730437A (en) 1980-07-30 1980-07-30 Block data transmission system

Publications (2)

Publication Number Publication Date
JPS5730437A true JPS5730437A (en) 1982-02-18
JPS6228619B2 JPS6228619B2 (en) 1987-06-22

Family

ID=14357321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10356580A Granted JPS5730437A (en) 1980-07-30 1980-07-30 Block data transmission system

Country Status (1)

Country Link
JP (1) JPS5730437A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125040A (en) * 1983-11-28 1985-07-04 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Communication system
JPS62281696A (en) * 1986-05-30 1987-12-07 Mitsubishi Electric Corp Digital remote control transmitter
JPS63313940A (en) * 1987-06-17 1988-12-22 Hitachi Ltd Communication control device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564445A (en) * 1978-11-08 1980-05-15 Nec Corp Code converter circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564445A (en) * 1978-11-08 1980-05-15 Nec Corp Code converter circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125040A (en) * 1983-11-28 1985-07-04 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Communication system
JPH0355065B2 (en) * 1983-11-28 1991-08-22
JPS62281696A (en) * 1986-05-30 1987-12-07 Mitsubishi Electric Corp Digital remote control transmitter
JPS63313940A (en) * 1987-06-17 1988-12-22 Hitachi Ltd Communication control device
JP2574796B2 (en) * 1987-06-17 1997-01-22 株式会社日立製作所 Communication control device

Also Published As

Publication number Publication date
JPS6228619B2 (en) 1987-06-22

Similar Documents

Publication Publication Date Title
DE3475370D1 (en) Method and apparatus for the detection and regeneration of a lost token in a token based data communications network
FI873405A0 (en) Method and circuitry for ensuring bit synchronization of a data block in a receiver
SE9202598L (en) TIME SYNCHRONIZATION OF A RECEIVER IN A DIGITAL RADIO PHONE SYSTEM
EP0380865A3 (en) Multiplexer frame sychronization technique
JPS5730437A (en) Block data transmission system
JPS5753163A (en) Preventing system for false acquisition of synchronization in start-stop synchronizing transmission system
GB1488558A (en) Reframing arrangement for receivers
JPS5718150A (en) Time-division data receiving and transferring method
JPS54149416A (en) Communication synchronous system
JPS5375707A (en) Fault detection system
JPS55161446A (en) Synchronous cooperation system of duplex cyclic data transmission unit
JPS5452905A (en) Data communication monitor
CA2072695A1 (en) Detecting location of time slot where data begins using pointer in justification or stuffing synchronous tdm
JPS5725748A (en) Start-stop synchronizing system
JPS54918A (en) Facsimile transmission system
JPS55115756A (en) Data transmission system
JPS53115120A (en) Intra-office phase synchronous system
JPS573447A (en) Time division multidimension connecting device
JPS5775091A (en) Signal reception system for time division electronic exchange
JPS6336587B2 (en)
JPS63131741A (en) Envelope form data transmission system
JPS52112204A (en) Data transmission control method and its unit
ATE1264T1 (en) CIRCUIT ARRANGEMENT FOR RECEIVING DIGITAL MESSAGE SIGNALS IN A DIGITAL EXCHANGE OF A PCM TIME-MULTIPLEX TELECOMMUNICATION NETWORK.
JPS5356909A (en) Synchronous transmission system of start-stop synchronous data
JPS5394737A (en) Synchronization system of loop data transmission system