JPS5643849A - Check code transmission system of data transmission using push-button dial signal - Google Patents

Check code transmission system of data transmission using push-button dial signal

Info

Publication number
JPS5643849A
JPS5643849A JP11992979A JP11992979A JPS5643849A JP S5643849 A JPS5643849 A JP S5643849A JP 11992979 A JP11992979 A JP 11992979A JP 11992979 A JP11992979 A JP 11992979A JP S5643849 A JPS5643849 A JP S5643849A
Authority
JP
Japan
Prior art keywords
outputs
check
check code
push
ceck1
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
JP11992979A
Other languages
Japanese (ja)
Other versions
JPS6228901B2 (en
Inventor
Hidetoshi Komatsu
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.)
Taiko Electric Works Ltd
Original Assignee
Taiko Electric Works 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 Taiko Electric Works Ltd filed Critical Taiko Electric Works Ltd
Priority to JP11992979A priority Critical patent/JPS5643849A/en
Publication of JPS5643849A publication Critical patent/JPS5643849A/en
Publication of JPS6228901B2 publication Critical patent/JPS6228901B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To make it possible to send out a check code in every case, by sending out a binary code as a check code to be sent out after data transmission by dividing it into the high-order two bits and low-order two bits in terms of time. CONSTITUTION:Input data are inputted to checking circuit 4 for a bit check to obtain outputs (CECK1-CECK8). Multiplexer 6 receives check outputs CECK1 and CECK2 connected to channel A among check outputs CECK1-CECK8 sent out of checking circuit 4 with data timing pulse output END and check outputs CHCK4 and CHCK8 connected to channel B when outputs TIMG B is sent out respectively and then sends them outputs Q<1> and Q<2>, thereby sending out a push-button dial signal, which corresponds to a check code, as the check code.
JP11992979A 1979-09-17 1979-09-17 Check code transmission system of data transmission using push-button dial signal Granted JPS5643849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11992979A JPS5643849A (en) 1979-09-17 1979-09-17 Check code transmission system of data transmission using push-button dial signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11992979A JPS5643849A (en) 1979-09-17 1979-09-17 Check code transmission system of data transmission using push-button dial signal

Publications (2)

Publication Number Publication Date
JPS5643849A true JPS5643849A (en) 1981-04-22
JPS6228901B2 JPS6228901B2 (en) 1987-06-23

Family

ID=14773656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11992979A Granted JPS5643849A (en) 1979-09-17 1979-09-17 Check code transmission system of data transmission using push-button dial signal

Country Status (1)

Country Link
JP (1) JPS5643849A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109035A (en) * 1981-12-21 1983-06-29 三菱レイヨン株式会社 Pressing cylinder for x-ray diagnosis
JPS5895807U (en) * 1981-12-21 1983-06-29 三菱レイヨン株式会社 Compression cylinder for X-ray diagnosis
JPS63240163A (en) * 1987-03-27 1988-10-05 Fuji Facom Corp Data transmission system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988410A (en) * 1972-12-25 1974-08-23
JPS52144904A (en) * 1975-09-29 1977-12-02 Mostek Corp Signal generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988410A (en) * 1972-12-25 1974-08-23
JPS52144904A (en) * 1975-09-29 1977-12-02 Mostek Corp Signal generator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109035A (en) * 1981-12-21 1983-06-29 三菱レイヨン株式会社 Pressing cylinder for x-ray diagnosis
JPS5895807U (en) * 1981-12-21 1983-06-29 三菱レイヨン株式会社 Compression cylinder for X-ray diagnosis
JPS6351696B2 (en) * 1981-12-21 1988-10-14 Mitsubishi Rayon Co
JPH0115370Y2 (en) * 1981-12-21 1989-05-09
JPS63240163A (en) * 1987-03-27 1988-10-05 Fuji Facom Corp Data transmission system

Also Published As

Publication number Publication date
JPS6228901B2 (en) 1987-06-23

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