JPS55104155A - Data transmission and reception system using circurating code - Google Patents

Data transmission and reception system using circurating code

Info

Publication number
JPS55104155A
JPS55104155A JP1130679A JP1130679A JPS55104155A JP S55104155 A JPS55104155 A JP S55104155A JP 1130679 A JP1130679 A JP 1130679A JP 1130679 A JP1130679 A JP 1130679A JP S55104155 A JPS55104155 A JP S55104155A
Authority
JP
Japan
Prior art keywords
synchronism
bit
circuit
fixed pattern
fixed
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
JP1130679A
Other languages
Japanese (ja)
Inventor
Akihiko Hayashi
Masaaki Nakajima
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP1130679A priority Critical patent/JPS55104155A/en
Publication of JPS55104155A publication Critical patent/JPS55104155A/en
Pending 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

Landscapes

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

Abstract

PURPOSE:To surely and quickly perform the judgement of synchronizing position, by inserting fixed bit for synchronism in the hole length bit of specific pattern so that the circulating code can detect the error to the out of synchronism. CONSTITUTION:The data in l-bit inputted from the data signal input terminal 1 is in circulating code into n-bit with the circulating code circuit 2, and the coded signal added with the fixed bit for synchronism produced from the fixed pattern generating circuit 5 is outputted from the output terminal 7. Next, the reception data input is decoded at the composite circuit 11 and outputs the composite data to the output terminal 12. On the other hand, the reception signal enters the shift register 15. The register 15 has the output of m-sets at the position corresponding to the fixed pattern for synchronism, and the fixed pattern detection circuit 16 detects the fixed pattern for synchronism by using it. Further, the judgement circuit 14 is not detected at the detection circuit 16 for the fixed pattern and if the content of the register 15 is in error, the display of out of synchronism is outputted to the output terminal 18.
JP1130679A 1979-02-02 1979-02-02 Data transmission and reception system using circurating code Pending JPS55104155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1130679A JPS55104155A (en) 1979-02-02 1979-02-02 Data transmission and reception system using circurating code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1130679A JPS55104155A (en) 1979-02-02 1979-02-02 Data transmission and reception system using circurating code

Publications (1)

Publication Number Publication Date
JPS55104155A true JPS55104155A (en) 1980-08-09

Family

ID=11774312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1130679A Pending JPS55104155A (en) 1979-02-02 1979-02-02 Data transmission and reception system using circurating code

Country Status (1)

Country Link
JP (1) JPS55104155A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912653A (en) * 1982-07-13 1984-01-23 Nec Corp Synchronizing circuit of error correcting decoder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912653A (en) * 1982-07-13 1984-01-23 Nec Corp Synchronizing circuit of error correcting decoder

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