JPS6214144B2 - - Google Patents

Info

Publication number
JPS6214144B2
JPS6214144B2 JP3135479A JP3135479A JPS6214144B2 JP S6214144 B2 JPS6214144 B2 JP S6214144B2 JP 3135479 A JP3135479 A JP 3135479A JP 3135479 A JP3135479 A JP 3135479A JP S6214144 B2 JPS6214144 B2 JP S6214144B2
Authority
JP
Japan
Prior art keywords
signal
receiving side
signals
transmitted
samples
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.)
Expired
Application number
JP3135479A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55123243A (en
Inventor
Takashi Usami
Kensaku Fujii
Masaharu Terauchi
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 JP3135479A priority Critical patent/JPS55123243A/ja
Publication of JPS55123243A publication Critical patent/JPS55123243A/ja
Publication of JPS6214144B2 publication Critical patent/JPS6214144B2/ja
Granted 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
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP3135479A 1979-03-16 1979-03-16 Echo canceler Granted JPS55123243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3135479A JPS55123243A (en) 1979-03-16 1979-03-16 Echo canceler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3135479A JPS55123243A (en) 1979-03-16 1979-03-16 Echo canceler

Publications (2)

Publication Number Publication Date
JPS55123243A JPS55123243A (en) 1980-09-22
JPS6214144B2 true JPS6214144B2 (enrdf_load_stackoverflow) 1987-03-31

Family

ID=12328886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3135479A Granted JPS55123243A (en) 1979-03-16 1979-03-16 Echo canceler

Country Status (1)

Country Link
JP (1) JPS55123243A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737937A (en) * 1980-08-15 1982-03-02 Hitachi Ltd Automatic hybrid circuit
DE3116863C2 (de) * 1981-04-28 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Digitalsignal-Echokompensation
DE3121545C2 (de) * 1981-05-29 1986-12-04 Siemens AG, 1000 Berlin und 8000 München Übersprech- u./o. Echo-Kompensationsschaltung

Also Published As

Publication number Publication date
JPS55123243A (en) 1980-09-22

Similar Documents

Publication Publication Date Title
US5721782A (en) Partitioned echo canceler utilizing decimation echo location
US4535206A (en) Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
US4362909A (en) Echo canceler with high-pass filter
DK170319B1 (da) Adaptivt digitalt filter med en ikke rekursiv del og en rekursiv del
EP0137508B1 (en) Method of and device for the digital cancellation of the echo generated in connections with time-varying characteristics
US5887034A (en) DS-CDMA multiple user serial interference canceler unit and method of transmitting interference replica signal of the same
JPS6046899B2 (ja) 反響消去装置
US4334128A (en) Echo canceler for homochronous data transmission systems
CA1175521A (en) Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
US4237463A (en) Directional coupler
JP2591764B2 (ja) アダプティブタイムディスクリートフィルタ
US4481385A (en) Arrangement for cancelling echo signals
JP2842345B2 (ja) エコーキャンセラ
US4272648A (en) Gain control apparatus for digital telephone line circuits
EP0303363A2 (en) Echo canceller
JPS6214144B2 (enrdf_load_stackoverflow)
JPH039655B2 (enrdf_load_stackoverflow)
EP0092569A1 (en) FIRM TYPE SYMMETRY FILTERS RECEIVED IN A TRANSMITTER / RECEIVER UNIT OF A TELECOMMUNICATION SYSTEM.
US4695998A (en) Method and circuit arrangement for the compensation of echo signals
US6891948B2 (en) Echo canceller
JP2001102973A (ja) デジタルエコー除去装置
JP3232091B2 (ja) 加入者回線回路のエコー除去の方法および装置
GB2065312A (en) Location of Cross-talk Faults by Correlation
JPH0611678Y2 (ja) 自動等化器
JP2594687B2 (ja) エコーキャンセラ