ES8603131A1 - Un circuito de linea para telecomunicacion con circuito de inversion de polaridad asociado - Google Patents
Un circuito de linea para telecomunicacion con circuito de inversion de polaridad asociadoInfo
- Publication number
- ES8603131A1 ES8603131A1 ES536920A ES536920A ES8603131A1 ES 8603131 A1 ES8603131 A1 ES 8603131A1 ES 536920 A ES536920 A ES 536920A ES 536920 A ES536920 A ES 536920A ES 8603131 A1 ES8603131 A1 ES 8603131A1
- Authority
- ES
- Spain
- Prior art keywords
- circuit
- polarity reversal
- telecommunication line
- line circuit
- associated polarity
- 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
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/005—Feeding arrangements without the use of line transformers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
CIRCUITO DE LINEA PARA TELECOMUNICACION CON CIRCUITO DE INVERSION DE POLARIDAD ASOCIADO.COMPRENDE UN CIRCUITO DE CONTROL (DC) DEL AMPLIFICADOR DE LINEA (LADC) ADAPTADO PARA APLICAR LAS TENSIONES DE POLARIZACION (DC) APROPIADAS A LAS ENTRADAS DE NO-INVERSION (TDC) Y (RDC) DE LOS AMPLIFICADORES DE LINEA OPERACIONALES (LOAO) Y (LOAI), DONDE EL MISMO CIRCUITO DE INTERFAZ DE LINEA DE ABONADO FORMA PARTE DE UN CIRCUITO DE LINEA CONECTADO EN UNA CENTRAL DE TELECOMUNICACION ENTRE UNA RED DE CONMUTACION Y UN EXTREMO DE UNA LINEA TELEFONICA CON LOS CONDUCTORES (LIO) Y (LI1), CONECTANDO EL OTRO EXTREMO DE ESTA LINEA A UN APARATO DE ABONADO (TSS) QUE INCLUYE UN CONMUTADOR DE APERTURA POR GANCHO (HS).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2/60231A BE898051A (nl) | 1983-10-21 | 1983-10-21 | Telecommunicatielijnketen en bijbehorende polariteitsomkeerketen. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES536920A0 ES536920A0 (es) | 1985-11-16 |
ES8603131A1 true ES8603131A1 (es) | 1985-11-16 |
Family
ID=3865660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES536920A Expired ES8603131A1 (es) | 1983-10-21 | 1984-10-19 | Un circuito de linea para telecomunicacion con circuito de inversion de polaridad asociado |
Country Status (5)
Country | Link |
---|---|
US (1) | US4614840A (es) |
EP (1) | EP0145047A3 (es) |
AU (1) | AU3411184A (es) |
BE (1) | BE898051A (es) |
ES (1) | ES8603131A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU590809B2 (en) * | 1985-12-20 | 1989-11-16 | Alcatel N.V. | Polarity reversal circuit |
EP0637161B1 (en) * | 1993-07-29 | 1998-05-13 | STMicroelectronics S.r.l. | Integrated subscriber line interface circuit with smooth polarity-reversal |
US9984624B2 (en) * | 2015-12-28 | 2018-05-29 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, driver IC, and electronic device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063037A (en) * | 1976-06-14 | 1977-12-13 | Rochester Telephone Corporation | Telephone metering interface with reverse signal sensor |
US4431868A (en) * | 1981-07-09 | 1984-02-14 | International Telephone And Telegraph Corporation | Solid state telephone line interface circuit with ringing capability |
BE898049A (nl) * | 1983-10-21 | 1984-04-24 | Bell Telephone Mfg | Telecommunicatielijnketen en bijbehorende spanningsomzetter. |
BE898052A (nl) * | 1983-10-21 | 1984-04-24 | Bell Telephone Mfg Company N V | Spanning-naar-stroomomzetter en impedantiesyntheseketen waarin deze wordt gebruikt. |
-
1983
- 1983-10-21 BE BE2/60231A patent/BE898051A/nl not_active IP Right Cessation
-
1984
- 1984-10-11 AU AU34111/84A patent/AU3411184A/en not_active Abandoned
- 1984-10-19 ES ES536920A patent/ES8603131A1/es not_active Expired
- 1984-10-20 EP EP84201522A patent/EP0145047A3/en not_active Withdrawn
- 1984-10-22 US US06/663,273 patent/US4614840A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES536920A0 (es) | 1985-11-16 |
AU3411184A (en) | 1985-04-26 |
US4614840A (en) | 1986-09-30 |
EP0145047A3 (en) | 1988-01-20 |
EP0145047A2 (en) | 1985-06-19 |
BE898051A (nl) | 1984-04-24 |
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