ES2021285B3 - Compensador de eco - Google Patents
Compensador de ecoInfo
- Publication number
- ES2021285B3 ES2021285B3 ES87101065T ES87101065T ES2021285B3 ES 2021285 B3 ES2021285 B3 ES 2021285B3 ES 87101065 T ES87101065 T ES 87101065T ES 87101065 T ES87101065 T ES 87101065T ES 2021285 B3 ES2021285 B3 ES 2021285B3
- Authority
- ES
- Spain
- Prior art keywords
- digital
- circuit
- analog
- khz
- trunk
- 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 - Lifetime
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
-
- 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)
- Optical Communication System (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
- Electrophotography Configuration And Component (AREA)
- Lock And Its Accessories (AREA)
- Primary Cells (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3602803 | 1986-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2021285B3 true ES2021285B3 (es) | 1991-11-01 |
Family
ID=6292977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES87101065T Expired - Lifetime ES2021285B3 (es) | 1986-01-30 | 1987-01-27 | Compensador de eco |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0231854B1 (es) |
JP (1) | JPH06101668B2 (es) |
AT (1) | ATE62365T1 (es) |
AU (1) | AU574282B2 (es) |
CA (1) | CA1332449C (es) |
DE (1) | DE3768975D1 (es) |
ES (1) | ES2021285B3 (es) |
GR (1) | GR3001866T3 (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0300427B1 (en) * | 1987-07-20 | 1992-09-30 | Nec Corporation | Echo canceller |
ATE81239T1 (de) * | 1987-07-29 | 1992-10-15 | Siemens Ag | Echokompensator. |
AT391784B (de) * | 1987-11-25 | 1990-11-26 | Siemens Ag Oesterreich | Verfahren zur adaptiven kompensation eines echos in einer kommunikationseinrichtung |
DE4202206C2 (de) * | 1992-01-28 | 1998-06-10 | Bosch Gmbh Robert | Analog/digitaler Kompensator mit Pegelregelung für eine Gabelschaltung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2496364A1 (fr) * | 1980-12-17 | 1982-06-18 | Trt Telecom Radio Electr | Annuleur d'echo pour transmission telephonique par voies numeriques mettant en oeuvre une loi de codage pseudo-logarithmique |
FR2556530B1 (fr) * | 1983-10-28 | 1986-04-04 | Telediffusion Fse | Dispositif de correction d'echos, notamment pour systeme de diffusion de donnees |
FR2569322B1 (fr) * | 1984-08-17 | 1986-12-05 | Trt Telecom Radio Electr | Annuleur d'echo utilisant la modulation delta |
US4769808A (en) * | 1984-09-19 | 1988-09-06 | Nec Corporation | Method of cancelling echoes in full-duplex data transmission system |
AU4695485A (en) * | 1984-09-21 | 1986-03-27 | Alcatel N.V. | Digital hybrid |
-
1987
- 1987-01-27 DE DE8787101065T patent/DE3768975D1/de not_active Expired - Fee Related
- 1987-01-27 AT AT87101065T patent/ATE62365T1/de not_active IP Right Cessation
- 1987-01-27 ES ES87101065T patent/ES2021285B3/es not_active Expired - Lifetime
- 1987-01-27 EP EP87101065A patent/EP0231854B1/de not_active Expired - Lifetime
- 1987-01-28 CA CA000528336A patent/CA1332449C/en not_active Expired - Fee Related
- 1987-01-29 AU AU68095/87A patent/AU574282B2/en not_active Ceased
- 1987-01-30 JP JP62018803A patent/JPH06101668B2/ja not_active Expired - Lifetime
-
1991
- 1991-04-26 GR GR90401175T patent/GR3001866T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
JPS62183230A (ja) | 1987-08-11 |
AU6809587A (en) | 1987-08-13 |
DE3768975D1 (de) | 1991-05-08 |
CA1332449C (en) | 1994-10-11 |
AU574282B2 (en) | 1988-06-30 |
EP0231854B1 (de) | 1991-04-03 |
ATE62365T1 (de) | 1991-04-15 |
EP0231854A1 (de) | 1987-08-12 |
GR3001866T3 (en) | 1992-11-23 |
JPH06101668B2 (ja) | 1994-12-12 |
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