JPS57123747A - Loop transmitting method - Google Patents

Loop transmitting method

Info

Publication number
JPS57123747A
JPS57123747A JP923881A JP923881A JPS57123747A JP S57123747 A JPS57123747 A JP S57123747A JP 923881 A JP923881 A JP 923881A JP 923881 A JP923881 A JP 923881A JP S57123747 A JPS57123747 A JP S57123747A
Authority
JP
Japan
Prior art keywords
bit pattern
outputs
signal
circuit
pix
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
JP923881A
Other languages
Japanese (ja)
Inventor
Masahiro Matsumoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP923881A priority Critical patent/JPS57123747A/en
Publication of JPS57123747A publication Critical patent/JPS57123747A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes

Landscapes

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

Abstract

PURPOSE:To improve transmission efficiency in a system which uses CRCC for code error control over a transmission frame by enabling to transmit answer data from a reception side even when the answer data is removed from the transmission frame. CONSTITUTION:In case of EX=0 where no error occurs on a forward line 10a, respective bits of a bit pattern R'X inputted directly from the forward line 10a are coincident with the bits of an excessive bit pattern R''X from a dividing circuit 11; a comparing circuit 12 outputs a coincidence signal, and a bit pattern generating circuit 14 outputs a signal with the 1st bit pattern P0X. In case of EXnot equal to 0 where an error occurs, the bit pattern R'X and R''X are not coincident; the comparing circuit 12 outputs an anticoincidence signal, and the bit pattern generating circuit 14 outputs a signal with the 2nd bit pattern P1X. By making a check part for frames of a reception side provided with ''or else'' exclusive ''or'' between the normal check bit pattern R''X and a specific bit pattern PiX, the state information which corresponds to the PiX is returned.
JP923881A 1981-01-24 1981-01-24 Loop transmitting method Pending JPS57123747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP923881A JPS57123747A (en) 1981-01-24 1981-01-24 Loop transmitting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP923881A JPS57123747A (en) 1981-01-24 1981-01-24 Loop transmitting method

Publications (1)

Publication Number Publication Date
JPS57123747A true JPS57123747A (en) 1982-08-02

Family

ID=11714816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP923881A Pending JPS57123747A (en) 1981-01-24 1981-01-24 Loop transmitting method

Country Status (1)

Country Link
JP (1) JPS57123747A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334651U (en) * 1989-08-08 1991-04-04
US5517511A (en) * 1992-11-30 1996-05-14 Digital Voice Systems, Inc. Digital transmission of acoustic signals over a noisy communication channel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334651U (en) * 1989-08-08 1991-04-04
US5517511A (en) * 1992-11-30 1996-05-14 Digital Voice Systems, Inc. Digital transmission of acoustic signals over a noisy communication channel
US5870405A (en) * 1992-11-30 1999-02-09 Digital Voice Systems, Inc. Digital transmission of acoustic signals over a noisy communication channel

Similar Documents

Publication Publication Date Title
AU1614299A (en) Method and apparatus for providing ternary power control in a communication system
ES8304333A1 (en) Industrial control system
MY114135A (en) Method and apparatus for the transmission of variable rate digital data
EP1198105A3 (en) High speed transmission line interface
DE3479854D1 (en) Method and circuit arrangement for the transmission of data signals between subscriber's stations of a data network
EP0132401A3 (en) Information transmission system
JPS57123747A (en) Loop transmitting method
SG37893G (en) Method and arrangement for the synchronisation of digital information signals
CA2048939C (en) Zero-sync-time apparatus for encoding and decoding
GB1477614A (en) Transmitting station and receiving station for operating with a systematic recurrent code
EP0683618A4 (en) Mobile communication method.
CA2016344A1 (en) Embedded control technique for distributed control apparatus
IE842334L (en) Data and signalling time slot transfer
JPS5632852A (en) Composite transmission system for data and sound
JPH0734559B2 (en) Digital transmission system
JPS5665564A (en) Facsimile transmission method
JPS5623053A (en) Communication system of loop shape
JPS5513536A (en) Picture signal transmission control system
EP0302622A3 (en) Method of communicating stuffing indications in a multi-level communications system
JPS5631264A (en) Composite transmission system of data and sound
JPS5764842A (en) Data transfer system
JPS60260255A (en) Envelope transmission system
JPS62291227A (en) Digital data transmission system
JPS59178035A (en) Communication system
JPS54147706A (en) Control system for data transfer