JPS5117849B1 - - Google Patents

Info

Publication number
JPS5117849B1
JPS5117849B1 JP3533870A JP3533870A JPS5117849B1 JP S5117849 B1 JPS5117849 B1 JP S5117849B1 JP 3533870 A JP3533870 A JP 3533870A JP 3533870 A JP3533870 A JP 3533870A JP S5117849 B1 JPS5117849 B1 JP S5117849B1
Authority
JP
Japan
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
JP3533870A
Other languages
Japanese (ja)
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
Priority claimed from DE19691921018 external-priority patent/DE1921018B1/en
Priority claimed from DE19691921023 external-priority patent/DE1921023B2/en
Priority claimed from DE19691920961 external-priority patent/DE1920961B2/en
Priority claimed from DE19691920962 external-priority patent/DE1920962B1/en
Application filed filed Critical
Publication of JPS5117849B1 publication Critical patent/JPS5117849B1/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/21—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a set of bandfilters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP3533870A 1969-04-24 1970-04-24 Pending JPS5117849B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19691921018 DE1921018B1 (en) 1969-04-24 1969-04-24 Echo suppressor for a speech circuit on a four-wire transmission system
DE19691921023 DE1921023B2 (en) 1969-04-24 1969-04-24 FREQUENCY SELECTIVELY CONTROLLED ECHO LOCK
DE19691920961 DE1920961B2 (en) 1969-04-24 1969-04-24 Selective echo suppressor for a speech circuit on a four-wire transmission system
DE19691920962 DE1920962B1 (en) 1969-04-24 1969-04-24 Echo suppressor with two filter sets consisting of bandpasses working in parallel for a speech circuit on a four-wire transmission system

Publications (1)

Publication Number Publication Date
JPS5117849B1 true JPS5117849B1 (en) 1976-06-05

Family

ID=27430890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3533870A Pending JPS5117849B1 (en) 1969-04-24 1970-04-24

Country Status (4)

Country Link
JP (1) JPS5117849B1 (en)
FR (1) FR2039429A1 (en)
GB (1) GB1269864A (en)
NL (1) NL7005280A (en)

Also Published As

Publication number Publication date
GB1269864A (en) 1972-04-06
FR2039429A1 (en) 1971-01-15
NL7005280A (en) 1970-10-27

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