JPS5516572A - Automatic waveform equalizer - Google Patents

Automatic waveform equalizer

Info

Publication number
JPS5516572A
JPS5516572A JP8956778A JP8956778A JPS5516572A JP S5516572 A JPS5516572 A JP S5516572A JP 8956778 A JP8956778 A JP 8956778A JP 8956778 A JP8956778 A JP 8956778A JP S5516572 A JPS5516572 A JP S5516572A
Authority
JP
Japan
Prior art keywords
equalizer
controller
equalization
equalizers
contacts
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
JP8956778A
Other languages
Japanese (ja)
Inventor
Yoshiji Furuya
Yuzo Fukushi
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
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8956778A priority Critical patent/JPS5516572A/en
Publication of JPS5516572A publication Critical patent/JPS5516572A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To reduce the cost of facility by improving the efficiency of utilization of a controller, by allowing wave-form equalizers, connected to independent transmission line, to perform automatically equalization under the control of one controller. CONSTITUTION:While a group of contacts of switch 16 are at position 1, controller 15 is connected to equalizer 14, thereby performing the qualization of equalizer 14-1. Next, although the group of contacts of switch 16 are shifted to position 2 by a switching control signal, equalizer 14-1 is being controlled by a voltage stored in a memory circuit (not shown in the figure), so that the equalization end state will be maintained. In the same method, equalizers 14-2 to 14-N are sequentially equalized and then, equalizer 14-1 is equalized again. The time required for equalization is short and its intervals are sufficiently long, so that one controller can perform equalization control of extremely-many equalizers.
JP8956778A 1978-07-21 1978-07-21 Automatic waveform equalizer Pending JPS5516572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8956778A JPS5516572A (en) 1978-07-21 1978-07-21 Automatic waveform equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8956778A JPS5516572A (en) 1978-07-21 1978-07-21 Automatic waveform equalizer

Publications (1)

Publication Number Publication Date
JPS5516572A true JPS5516572A (en) 1980-02-05

Family

ID=13974382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8956778A Pending JPS5516572A (en) 1978-07-21 1978-07-21 Automatic waveform equalizer

Country Status (1)

Country Link
JP (1) JPS5516572A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS596633A (en) * 1982-07-02 1984-01-13 Fujitsu Ltd Time division processing type integrator
JPS596632A (en) * 1982-07-02 1984-01-13 Fujitsu Ltd Time division processing type controlling circuit of tap factor
JPS6075135A (en) * 1983-09-30 1985-04-27 Fujitsu Ltd Automatic setting system of transmission and reception line equalizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS596633A (en) * 1982-07-02 1984-01-13 Fujitsu Ltd Time division processing type integrator
JPS596632A (en) * 1982-07-02 1984-01-13 Fujitsu Ltd Time division processing type controlling circuit of tap factor
JPS6075135A (en) * 1983-09-30 1985-04-27 Fujitsu Ltd Automatic setting system of transmission and reception line equalizer

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