ES8601608A1 - Un circuito de adaptacion de impedancias de un aparato de abonado telefonico - Google Patents
Un circuito de adaptacion de impedancias de un aparato de abonado telefonicoInfo
- Publication number
- ES8601608A1 ES8601608A1 ES534300A ES534300A ES8601608A1 ES 8601608 A1 ES8601608 A1 ES 8601608A1 ES 534300 A ES534300 A ES 534300A ES 534300 A ES534300 A ES 534300A ES 8601608 A1 ES8601608 A1 ES 8601608A1
- Authority
- ES
- Spain
- Prior art keywords
- impedance
- line
- instrument
- impedance matching
- matching circuit
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/76—Compensating for differences in line impedance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/28—Impedance matching networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Networks Using Active Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephone Function (AREA)
- Amplifiers (AREA)
Abstract
CIRCUITO PARA LA ADAPTACION DE IMPEDANCIA DE UN APARATO DE ABONADO TELEFONICO. CONSTA DE UN PAR DE TERMINALES DE SALIDA PARA LA CONEXION AL BUCLE DE ABONADO; DE UNA PRIMERA IMPEDANCIA CONECTADA A TRAVES DE LOS TERMINALES DE SALIDA; Y DE ELEMENTOS CON LOS QUE UNA SEGUNDA IMPEDANCIA DE SIGNO OPUESTO A LA PRIMERA SE CONECTA EN PARALELO CON LA PRIMERA IMPEDANCIA PROPORCIONANDO LA COMBINACION PARALELO DE LAS DOS IMPEDANCIAS UNA ADAPTACION DE IMPEDANCIA DEL APARATO AL BUCLE DE ABONADO. LA SALIDA DE LINEA INCLUYE UN BUCLE DE REALIMENTACION QUE COMPRENDE UNA CONFIGURACION SERIE DE UNA IMPEDANCIA POSITIVA Y UN AMPLIFICADOR DC ENTRE LA LINEA Y LA ENTRADA DEL AMPLIFICADOR EXCITADOR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08319222A GB2154831B (en) | 1983-06-29 | 1983-07-15 | Impedance matching circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
ES534300A0 ES534300A0 (es) | 1985-10-16 |
ES8601608A1 true ES8601608A1 (es) | 1985-10-16 |
Family
ID=10545801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES534300A Expired ES8601608A1 (es) | 1983-07-15 | 1984-07-13 | Un circuito de adaptacion de impedancias de un aparato de abonado telefonico |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS6074732A (es) |
KR (1) | KR850005046A (es) |
AU (1) | AU3044284A (es) |
ES (1) | ES8601608A1 (es) |
FR (1) | FR2549325A1 (es) |
GB (1) | GB2146505B (es) |
IT (1) | IT1174568B (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6243944A (ja) * | 1985-08-21 | 1987-02-25 | Toshiba Corp | 電話機回路 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1233955A (es) * | 1967-10-23 | 1971-06-03 | ||
JPS5679551A (en) * | 1979-12-04 | 1981-06-30 | Hitachi Ltd | Bus line termination system |
-
1984
- 1984-07-06 IT IT21777/84A patent/IT1174568B/it active
- 1984-07-10 AU AU30442/84A patent/AU3044284A/en not_active Abandoned
- 1984-07-11 KR KR1019840004026A patent/KR850005046A/ko not_active Application Discontinuation
- 1984-07-12 GB GB08417828A patent/GB2146505B/en not_active Expired
- 1984-07-13 ES ES534300A patent/ES8601608A1/es not_active Expired
- 1984-07-13 JP JP59144510A patent/JPS6074732A/ja active Pending
- 1984-07-13 FR FR8411150A patent/FR2549325A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JPS6074732A (ja) | 1985-04-27 |
GB2146505B (en) | 1987-04-15 |
FR2549325A1 (fr) | 1985-01-18 |
GB2146505A (en) | 1985-04-17 |
GB8417828D0 (en) | 1984-08-15 |
ES534300A0 (es) | 1985-10-16 |
IT8421777A0 (it) | 1984-07-06 |
KR850005046A (ko) | 1985-08-19 |
AU3044284A (en) | 1985-01-17 |
IT8421777A1 (it) | 1986-01-06 |
IT1174568B (it) | 1987-07-01 |
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