JPS55156442A - Information transmission system - Google Patents

Information transmission system

Info

Publication number
JPS55156442A
JPS55156442A JP6513779A JP6513779A JPS55156442A JP S55156442 A JPS55156442 A JP S55156442A JP 6513779 A JP6513779 A JP 6513779A JP 6513779 A JP6513779 A JP 6513779A JP S55156442 A JPS55156442 A JP S55156442A
Authority
JP
Japan
Prior art keywords
output
duplexed
parity
parts
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.)
Pending
Application number
JP6513779A
Other languages
Japanese (ja)
Inventor
Masao Hirashima
Takeo Sato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6513779A priority Critical patent/JPS55156442A/en
Publication of JPS55156442A publication Critical patent/JPS55156442A/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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To improve reliability by obtaining a reception output by selecting information free of a parity error while duplexing individual input-output parts. CONSTITUTION:Word data W1 are simultaneously applied to duplexed individual input parts IN1a and IN1b via parity adding circuit PG and then sent out to transmission line TL by way of scanning circuit SCN, parallel-series converter PSC and modulator MOD. The transmitted data are reproduced by demodulator DEM and series-parallel converter SPC on a reception side and reproduced data are distributed to duplexed individual output parts T1a and T1b via distributor DS. The outputs of output parts T1a and T1b are supplied to switch part SWC controlled by parity check circuits PCa and PCb to select the output of a side with no parity check, which is output as word data W1 with a parity bit. Word data W2 and W3 are transmitted and received via an individual input-output part, which is not duplexed, in the conventional method.
JP6513779A 1979-05-25 1979-05-25 Information transmission system Pending JPS55156442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6513779A JPS55156442A (en) 1979-05-25 1979-05-25 Information transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6513779A JPS55156442A (en) 1979-05-25 1979-05-25 Information transmission system

Publications (1)

Publication Number Publication Date
JPS55156442A true JPS55156442A (en) 1980-12-05

Family

ID=13278187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6513779A Pending JPS55156442A (en) 1979-05-25 1979-05-25 Information transmission system

Country Status (1)

Country Link
JP (1) JPS55156442A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163126A (en) * 1984-09-05 1986-04-01 Tokyo Electric Power Co Inc:The Carrier data transmission and reception system using distribution line
JPS62137933A (en) * 1985-12-12 1987-06-20 Fujitsu Ltd Radio system with error correction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52123118A (en) * 1976-04-08 1977-10-17 Nec Corp Digital communication unit completed into duplicated reducdant circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52123118A (en) * 1976-04-08 1977-10-17 Nec Corp Digital communication unit completed into duplicated reducdant circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163126A (en) * 1984-09-05 1986-04-01 Tokyo Electric Power Co Inc:The Carrier data transmission and reception system using distribution line
JPS62137933A (en) * 1985-12-12 1987-06-20 Fujitsu Ltd Radio system with error correction

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