JPS57162821A - Data mode converging system - Google Patents

Data mode converging system

Info

Publication number
JPS57162821A
JPS57162821A JP4825081A JP4825081A JPS57162821A JP S57162821 A JPS57162821 A JP S57162821A JP 4825081 A JP4825081 A JP 4825081A JP 4825081 A JP4825081 A JP 4825081A JP S57162821 A JPS57162821 A JP S57162821A
Authority
JP
Japan
Prior art keywords
adder
data mode
signal
codes
output
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
JP4825081A
Other languages
Japanese (ja)
Other versions
JPH0136284B2 (en
Inventor
Takashi Kaku
Shigeyuki Umigami
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 JP4825081A priority Critical patent/JPS57162821A/en
Publication of JPS57162821A publication Critical patent/JPS57162821A/en
Publication of JPH0136284B2 publication Critical patent/JPH0136284B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To speed up the convergency of data mode, by controlling a transversal type automatic equalizer based on an interruption signal between codes. CONSTITUTION:A transversal type automatic equalizer 10' makes control based on the amplitude difference between an equivalent output signal and a reference signal to converge the data mode and picks up the interruption signal between codes from a tap coefficient operating circuit 11'. After the interruption signal between picked up codes is multiplied by r1 at a multiplier 14, the signal is added to an adder 15. On the other hand, the output difference between equalizing output operation section 2 and a reference power operating section 3 outputted from the adder 4 is applied to the adder 15. The output of the adder 15 is integrated at an integral network 8 and given as a central tape coefficient C0 of the automatic equalizer 10' via a limiter 9, allowing to speed up the convergion of the data mode.
JP4825081A 1981-03-31 1981-03-31 Data mode converging system Granted JPS57162821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4825081A JPS57162821A (en) 1981-03-31 1981-03-31 Data mode converging system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4825081A JPS57162821A (en) 1981-03-31 1981-03-31 Data mode converging system

Publications (2)

Publication Number Publication Date
JPS57162821A true JPS57162821A (en) 1982-10-06
JPH0136284B2 JPH0136284B2 (en) 1989-07-31

Family

ID=12798186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4825081A Granted JPS57162821A (en) 1981-03-31 1981-03-31 Data mode converging system

Country Status (1)

Country Link
JP (1) JPS57162821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554120A2 (en) * 1992-01-31 1993-08-04 Fujitsu Limited Adaptive transversal equalizer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137730A (en) * 1974-09-25 1976-03-30 Teizo Murakawa SUPUREESHIKISHUJISHUSEIEKI
JPS5289407A (en) * 1976-01-21 1977-07-27 Nec Corp Transmitter/receiver for data transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137730A (en) * 1974-09-25 1976-03-30 Teizo Murakawa SUPUREESHIKISHUJISHUSEIEKI
JPS5289407A (en) * 1976-01-21 1977-07-27 Nec Corp Transmitter/receiver for data transmission

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554120A2 (en) * 1992-01-31 1993-08-04 Fujitsu Limited Adaptive transversal equalizer
EP0554120A3 (en) * 1992-01-31 1994-01-19 Fujitsu Ltd
US5598433A (en) * 1992-01-31 1997-01-28 Fujitsu Limited Automatic equalizer and data mode convergence method

Also Published As

Publication number Publication date
JPH0136284B2 (en) 1989-07-31

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