GR3006697T3 - - Google Patents

Info

Publication number
GR3006697T3
GR3006697T3 GR920402443T GR920402443T GR3006697T3 GR 3006697 T3 GR3006697 T3 GR 3006697T3 GR 920402443 T GR920402443 T GR 920402443T GR 920402443 T GR920402443 T GR 920402443T GR 3006697 T3 GR3006697 T3 GR 3006697T3
Authority
GR
Greece
Prior art keywords
echo
step width
signal
echo canceller
measuring device
Prior art date
Application number
GR920402443T
Other languages
Greek (el)
English (en)
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 filed Critical
Publication of GR3006697T3 publication Critical patent/GR3006697T3/el

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
    • H04B3/234—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 using double talk detection
    • 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
    • H04B3/238—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 using initial training sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Primary Cells (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Radio Relay Systems (AREA)
GR920402443T 1987-07-29 1992-12-30 GR3006697T3 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3725190 1987-07-29

Publications (1)

Publication Number Publication Date
GR3006697T3 true GR3006697T3 (OSRAM) 1993-06-30

Family

ID=6332662

Family Applications (1)

Application Number Title Priority Date Filing Date
GR920402443T GR3006697T3 (OSRAM) 1987-07-29 1992-12-30

Country Status (8)

Country Link
EP (1) EP0303101B1 (OSRAM)
JP (1) JPH0695653B2 (OSRAM)
AT (1) ATE81239T1 (OSRAM)
AU (1) AU586959B2 (OSRAM)
DE (1) DE3875028D1 (OSRAM)
ES (1) ES2035186T3 (OSRAM)
GR (1) GR3006697T3 (OSRAM)
NO (1) NO175400C (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300427B1 (en) * 1987-07-20 1992-09-30 Nec Corporation Echo canceller
DE19816358C2 (de) * 1998-04-03 2000-04-27 Deutsche Telekom Ag Verfahren zur Steuerung der Schrittweite eines Echokompensators mit adaptivem Filter
EP1301018A1 (en) * 2001-10-02 2003-04-09 Alcatel Apparatus and method for modifying a digital signal in the coded domain

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3327467A1 (de) * 1983-07-29 1985-02-14 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zur kompensation von echosignalen
JPS6053336A (ja) * 1983-09-02 1985-03-27 Nec Corp 反響消去装置
FR2564667B1 (fr) * 1984-05-15 1986-09-19 Trt Telecom Radio Electr Dispositif de commande d'un annuleur d'echo et d'un ecreteur de centre
EP0231854B1 (de) * 1986-01-30 1991-04-03 Siemens Aktiengesellschaft Echokompensator

Also Published As

Publication number Publication date
NO175400B (no) 1994-06-27
EP0303101A1 (de) 1989-02-15
AU586959B2 (en) 1989-07-27
AU2011088A (en) 1989-02-16
DE3875028D1 (de) 1992-11-05
JPH0695653B2 (ja) 1994-11-24
ES2035186T3 (es) 1993-04-16
NO175400C (no) 1994-10-05
JPS6444636A (en) 1989-02-17
NO883355L (no) 1989-01-30
EP0303101B1 (de) 1992-09-30
ATE81239T1 (de) 1992-10-15
NO883355D0 (no) 1988-07-28

Similar Documents

Publication Publication Date Title
JPS5333520A (en) Signal transmission unit
DE59204477D1 (de) Steckverbindung für Computernetze im Hausbereich.
EP0333158A3 (en) Image data transmission apparatus
CA2171492A1 (en) Acoustic Echo Canceler
CA2307657A1 (en) Echo canceller employing dual-h architecture having variable adaptive gain settings
DE68916073D1 (de) Echokompensator.
GR3006697T3 (OSRAM)
EP0519498A3 (en) Terminal apparatus for full-duplex data transmission having an echo canceller
SE9201145D0 (sv) Metod foer att undvika sjaelvsvaengning i samband med ekoslaeckning
CA2307653A1 (en) Echo canceller employing dual-h architecture having improved double-talk detection
WO1998024261A3 (de) Messeinrichtung für die schnittstelle einer übertragungsstrecke mit einer vollduplex-übertragung im zweidrahtgleichlageverfahren
AU584020B2 (en) A test device for digital echo compensators
JPS5570169A (en) Control system for facsimile device
EP0322520A3 (en) Adding apparatus having a high accuracy
SE8103942L (sv) Forfarande for att inleda forbindelse vid tvaledningsoverforing
DE69523886D1 (de) Hybridschaltung eines Übertragungssystems
EP0776118A3 (OSRAM)
JPS57178468A (en) Character and voice transmission system
IT1248606B (it) Rivelatore di saturazione dell'aritmetica applicabile a cancellatore d'eco nei sistemi di trasmissione digitale
JPS6450644A (en) Fault processing system for loop network
JPS6398227A (ja) 適応形反響消去装置
JPS5422717A (en) Hue correction device
NO923610D0 (no) Fremgangsmaate og koblingsanordning til kompensasjon av ekkosignaler ved en digitalsignaloverfoering over et totraadssamband
JPS57125449A (en) Method for confirming function of package or unit
HK1012741A1 (en) Data processing system, method thereof and memory cassette