JPS6422150A - Code error correcting communications system - Google Patents

Code error correcting communications system

Info

Publication number
JPS6422150A
JPS6422150A JP62178363A JP17836387A JPS6422150A JP S6422150 A JPS6422150 A JP S6422150A JP 62178363 A JP62178363 A JP 62178363A JP 17836387 A JP17836387 A JP 17836387A JP S6422150 A JPS6422150 A JP S6422150A
Authority
JP
Japan
Prior art keywords
error correcting
circuit
phase
phase discrimination
discrimination signal
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
JP62178363A
Other languages
Japanese (ja)
Inventor
Seiichi Noda
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
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 filed Critical NEC Corp
Priority to JP62178363A priority Critical patent/JPS6422150A/en
Publication of JPS6422150A publication Critical patent/JPS6422150A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To reduce code errors by multiplexing-modulating and transmitting a phase discrimination signal for respective blocks of error correcting codes and removing the phase uncertainty of a regeneration carrier based on the phase discrimination signal at a receiving side. CONSTITUTION:In a transmission picture, the phase discrimination signal is multiplexed to the error correcting code by a phase discrimination signal multiplexing circuit 10, and the output is sent through a code error correcting coding circuit 11 and a modulator 12. At the receiving side, a modulated wave sent from a transmission side is demodulated by a demodulator 22, and the output is supplied to a code error correcting demodulating circuit 21 and a phase discrimination circuit 22. A phase uncertainty removing circuit 23 inputs the output of the code error correcting demodulating circuit 21 and removes the phase uncertainty based on the phase discrimination signal from the phase discrimination circuit 22.
JP62178363A 1987-07-17 1987-07-17 Code error correcting communications system Pending JPS6422150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62178363A JPS6422150A (en) 1987-07-17 1987-07-17 Code error correcting communications system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178363A JPS6422150A (en) 1987-07-17 1987-07-17 Code error correcting communications system

Publications (1)

Publication Number Publication Date
JPS6422150A true JPS6422150A (en) 1989-01-25

Family

ID=16047183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62178363A Pending JPS6422150A (en) 1987-07-17 1987-07-17 Code error correcting communications system

Country Status (1)

Country Link
JP (1) JPS6422150A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951645A (en) * 1982-09-17 1984-03-26 Nec Corp System and apparatus for coding and decoding of error correction multi-value
JPS6268349A (en) * 1985-09-20 1987-03-28 Fujitsu Ltd Multivalue orthogonal amplitude modulation and demodulation system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951645A (en) * 1982-09-17 1984-03-26 Nec Corp System and apparatus for coding and decoding of error correction multi-value
JPS6268349A (en) * 1985-09-20 1987-03-28 Fujitsu Ltd Multivalue orthogonal amplitude modulation and demodulation system

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