JPS5746558A - Automatic code detection system - Google Patents

Automatic code detection system

Info

Publication number
JPS5746558A
JPS5746558A JP55121968A JP12196880A JPS5746558A JP S5746558 A JPS5746558 A JP S5746558A JP 55121968 A JP55121968 A JP 55121968A JP 12196880 A JP12196880 A JP 12196880A JP S5746558 A JPS5746558 A JP S5746558A
Authority
JP
Japan
Prior art keywords
line
synchronizing
character
code
control device
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
JP55121968A
Other languages
Japanese (ja)
Other versions
JPS6126860B2 (en
Inventor
Takayuki Yui
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55121968A priority Critical patent/JPS5746558A/en
Publication of JPS5746558A publication Critical patent/JPS5746558A/en
Publication of JPS6126860B2 publication Critical patent/JPS6126860B2/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
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Computer And Data Communications (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To apply the automatic code detection function to a character synchronizing line also, by collating the bit pattern of the line synchronizing character from a terminal device with the bit pattern of the synchronizing character of every code to detect the code automatically. CONSTITUTION:In a character synchronizing line, a means to detect the bit pattern of the synchronizing character in every code is provided in a line control device LC to recognize the code used at the time point. For example, in case a terminal equipment T1 communicates with a central control device CT, transmission is requested from the terminal equipment T1 to a line concentrator CL, and the line concentrator CL is connected to a SYN synchronizing line L after checking the idle state of the SYN synchronizing line. The terminal equipment T1 transmits the SYN synchronizing character due to its own code, and this SYN synchronizing character is received by a receiving buffer RB in the line control device LC, and receiving is reported to a control device CNT. Then, the control device CNT collates the bit pattern in the receiving buffer RB with contents of a SYN character bit pattern table SYNBIT to detect the code of the terminal equipment T1.
JP55121968A 1980-09-03 1980-09-03 Automatic code detection system Granted JPS5746558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121968A JPS5746558A (en) 1980-09-03 1980-09-03 Automatic code detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121968A JPS5746558A (en) 1980-09-03 1980-09-03 Automatic code detection system

Publications (2)

Publication Number Publication Date
JPS5746558A true JPS5746558A (en) 1982-03-17
JPS6126860B2 JPS6126860B2 (en) 1986-06-23

Family

ID=14824328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121968A Granted JPS5746558A (en) 1980-09-03 1980-09-03 Automatic code detection system

Country Status (1)

Country Link
JP (1) JPS5746558A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001095593A1 (en) * 2000-06-06 2001-12-13 Mitsubishi Denki Kabushiki Kaisha Communication terminal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH035564U (en) * 1989-06-01 1991-01-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001095593A1 (en) * 2000-06-06 2001-12-13 Mitsubishi Denki Kabushiki Kaisha Communication terminal

Also Published As

Publication number Publication date
JPS6126860B2 (en) 1986-06-23

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