BE885718A - Dispositif de mesure de l'attenuation d'un trajet de transmission - Google Patents
Dispositif de mesure de l'attenuation d'un trajet de transmissionInfo
- Publication number
- BE885718A BE885718A BE1/9990A BE1009990A BE885718A BE 885718 A BE885718 A BE 885718A BE 1/9990 A BE1/9990 A BE 1/9990A BE 1009990 A BE1009990 A BE 1009990A BE 885718 A BE885718 A BE 885718A
- Authority
- BE
- Belgium
- Prior art keywords
- attenuation
- measuring
- transmission path
- path
- transmission
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
- Radio Relay Systems (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7927010A FR2469054A1 (fr) | 1979-10-31 | 1979-10-31 | Dispositif de mesure de l'attenuation d'un trajet de transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
BE885718A true BE885718A (fr) | 1981-04-15 |
Family
ID=9231232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE1/9990A BE885718A (fr) | 1979-10-31 | 1980-10-15 | Dispositif de mesure de l'attenuation d'un trajet de transmission |
Country Status (11)
Country | Link |
---|---|
US (1) | US4349707A (fr) |
JP (1) | JPS5675734A (fr) |
BE (1) | BE885718A (fr) |
CA (1) | CA1165917A (fr) |
DE (1) | DE3040241A1 (fr) |
FR (1) | FR2469054A1 (fr) |
GB (1) | GB2063491B (fr) |
IE (1) | IE50947B1 (fr) |
IT (1) | IT1167301B (fr) |
LU (1) | LU82894A1 (fr) |
NL (1) | NL188004B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61237065A (ja) * | 1985-04-13 | 1986-10-22 | Anritsu Corp | 2チヤンネル伝送反射特性解析装置 |
US4887289A (en) * | 1988-08-29 | 1989-12-12 | New York Telephone Company | Remote testing of a trunk leading to an automatic call distributor |
DE59914920D1 (de) | 1998-01-15 | 2009-01-15 | Siemens Schweiz Ag | Verfahren zum bereitstellen von einrichtungen zur echounterdrückung in kommunikationsverbindungen mit automaten |
DE19825196A1 (de) * | 1998-06-05 | 1999-12-09 | Alcatel Sa | Verfahren zur Kopplungsbestimmung zwischen zwei Telekommunikations(=TK)-Wegen |
US6952472B2 (en) * | 2001-12-31 | 2005-10-04 | Texas Instruments Incorporated | Dynamically estimating echo return loss in a communication link |
WO2020171170A1 (fr) | 2019-02-20 | 2020-08-27 | 本田技研工業株式会社 | Dispositif de traitement d'informations, procédé de traitement d'informations, système de service, programme et support d'informations |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3637954A (en) * | 1969-05-22 | 1972-01-25 | Bell Telephone Labor Inc | Method and apparatus for dynamic testing of echo suppressors in telephone trunk systems |
US4012603A (en) * | 1974-08-27 | 1977-03-15 | Nippon Electric Company, Ltd. | Echo suppressor having self-adaptive means |
GB1457067A (en) * | 1974-12-03 | 1976-12-01 | Standard Telephones Cables Ltd | Arrangement for testing telecommunication repeaters |
FR2379820A1 (fr) * | 1977-02-02 | 1978-09-01 | Cit Alcatel | Indicateur de puissance d'un signal |
-
1979
- 1979-10-31 FR FR7927010A patent/FR2469054A1/fr active Granted
-
1980
- 1980-10-15 BE BE1/9990A patent/BE885718A/fr not_active IP Right Cessation
- 1980-10-17 GB GB8033559A patent/GB2063491B/en not_active Expired
- 1980-10-24 DE DE19803040241 patent/DE3040241A1/de active Granted
- 1980-10-29 LU LU82894A patent/LU82894A1/fr unknown
- 1980-10-29 NL NLAANVRAGE8005941,A patent/NL188004B/xx not_active IP Right Cessation
- 1980-10-29 US US06/201,690 patent/US4349707A/en not_active Expired - Lifetime
- 1980-10-30 CA CA000363597A patent/CA1165917A/fr not_active Expired
- 1980-10-30 IT IT68655/80A patent/IT1167301B/it active
- 1980-10-30 JP JP15295380A patent/JPS5675734A/ja active Granted
- 1980-10-30 IE IE2248/80A patent/IE50947B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT8068655A0 (it) | 1980-10-30 |
NL188004B (nl) | 1991-10-01 |
GB2063491A (en) | 1981-06-03 |
GB2063491B (en) | 1984-01-25 |
FR2469054A1 (fr) | 1981-05-08 |
IE50947B1 (en) | 1986-08-20 |
JPS6360935B2 (fr) | 1988-11-25 |
US4349707A (en) | 1982-09-14 |
JPS5675734A (en) | 1981-06-23 |
DE3040241A1 (de) | 1981-05-14 |
FR2469054B1 (fr) | 1982-09-03 |
NL8005941A (nl) | 1981-06-01 |
IT1167301B (it) | 1987-05-13 |
IE802248L (en) | 1981-04-30 |
CA1165917A (fr) | 1984-04-17 |
LU82894A1 (fr) | 1981-06-04 |
DE3040241C2 (fr) | 1989-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2034460B (en) | Optical measuring device | |
JPS55140111A (en) | Optical fiber measurement device | |
JPS54158954A (en) | Device for measuring fiber optical | |
FR2483649B1 (fr) | Dispositif de transmission du couple | |
FR2573267B1 (fr) | Dispositif de mesure d'indice d'ecoute | |
ES495897A0 (es) | Un dispositivo de acoplamiento o empalme | |
BE881202A (fr) | Dispositif sono-actinique de nettoyage et d'aseptisation | |
JPS5729009A (en) | Device for coupling and measuring optical fiber | |
JPS5626275A (en) | Relative velocity measuring device | |
FR2445908B1 (fr) | Dispositif d'accouplement a baionnette | |
JPS5666810A (en) | Distance meter for optical device | |
FR2351386A1 (fr) | Dispositif de mesure d'excentricite | |
RO86519A (fr) | Dispositif pour ruminants | |
JPS567004A (en) | Optical device for measuring very small quantity | |
BE881359A (fr) | Dispositif a episser | |
JPS5787000A (en) | Optical fiber measuring device | |
FR2544424B1 (fr) | Dispositif d'accouplement | |
JPS54128361A (en) | Optical measuring device | |
JPS5724832A (en) | Optical fiber measuring device | |
BE885718A (fr) | Dispositif de mesure de l'attenuation d'un trajet de transmission | |
JPS55119037A (en) | Device for measuring transfer function of optical fibers | |
BE886205A (fr) | Dispositif compensateur | |
FR2452029B1 (fr) | Dispositif d'embrayage | |
FR2436969B1 (fr) | Dispositif de mesure pour surfaces interrompues | |
JPS54128756A (en) | Optical measuring device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: CIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCAT Effective date: 19941031 |