NL7005280A - - Google Patents

Info

Publication number
NL7005280A
NL7005280A NL7005280A NL7005280A NL7005280A NL 7005280 A NL7005280 A NL 7005280A NL 7005280 A NL7005280 A NL 7005280A NL 7005280 A NL7005280 A NL 7005280A NL 7005280 A NL7005280 A NL 7005280A
Authority
NL
Netherlands
Application number
NL7005280A
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 NL7005280A publication Critical patent/NL7005280A/xx

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
NL7005280A 1969-04-24 1970-04-13 NL7005280A (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
NL7005280A true NL7005280A (en) 1970-10-27

Family

ID=27430890

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7005280A NL7005280A (en) 1969-04-24 1970-04-13

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
JPS5117849B1 (en) 1976-06-05

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