ES554358A0 - Sistema de comunicacion telefonica de linea unica - Google Patents
Sistema de comunicacion telefonica de linea unicaInfo
- Publication number
- ES554358A0 ES554358A0 ES554358A ES554358A ES554358A0 ES 554358 A0 ES554358 A0 ES 554358A0 ES 554358 A ES554358 A ES 554358A ES 554358 A ES554358 A ES 554358A ES 554358 A0 ES554358 A0 ES 554358A0
- Authority
- ES
- Spain
- Prior art keywords
- communication system
- single line
- telephone communication
- line telephone
- telephone
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
- H04M1/715—Substation extension arrangements using two or more extensions per line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72673385A | 1985-04-25 | 1985-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8707060A1 ES8707060A1 (es) | 1987-07-16 |
| ES554358A0 true ES554358A0 (es) | 1987-07-16 |
Family
ID=24919783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES554358A Expired ES8707060A1 (es) | 1985-04-25 | 1986-04-25 | Sistema de comunicacion telefonica de linea unica |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0221090A1 (es) |
| JP (1) | JPS62502579A (es) |
| KR (1) | KR880700581A (es) |
| AU (1) | AU588305B2 (es) |
| CA (1) | CA1244978A (es) |
| ES (1) | ES8707060A1 (es) |
| MX (1) | MX161903A (es) |
| WO (1) | WO1986006570A1 (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4893334A (en) * | 1987-08-28 | 1990-01-09 | Power Play | Intercommunication system for telephones |
| GB2213351B (en) * | 1987-12-04 | 1992-06-17 | Roy Musselbrook | Telephone, extention-to-intercom module |
| IT1226312B (it) * | 1988-07-26 | 1990-12-27 | Italtel Telematica | Sistema di telefoni intercomunicanti su linea bifilare. |
| IT1236823B (it) * | 1989-11-23 | 1993-04-02 | Alcatel Dial Face Spa | Dispositivo per la trasmissione su un'unica coppia di conduttori del segnale fonico, della segnalazione e dell'alimentazione in apparecchiature intercomunicanti. |
| NL9400239A (nl) * | 1994-02-17 | 1995-10-02 | Grid Telecom Systems Bv | Huistelefoonsysteem. |
| GB9407696D0 (en) * | 1994-04-19 | 1994-06-15 | Marikon Resources Inc | A telephone exchange system |
| US5920615A (en) * | 1995-10-19 | 1999-07-06 | British Telecommunications Public Limited Company | Telecommunications switch |
| FI962312A7 (fi) * | 1996-05-31 | 1997-12-01 | Teleste Viestintae Oy | Puhelinjärjestelmä |
| US5978469A (en) * | 1997-01-21 | 1999-11-02 | U S West, Inc. | Apparatus for telephone extension control |
| DK1227545T3 (da) | 1999-10-26 | 2003-10-27 | Fractus Sa | Interlacede flerbåndsantennearrangementer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092501A (en) * | 1973-12-05 | 1978-05-30 | Iwasaki Tsushinki Kabushiki Kaisha | Key telephone system |
| JPS519306A (ja) * | 1974-07-11 | 1976-01-26 | Fujitsu Ltd | Nikyodokanyushashuyohoshiki |
| US4000376A (en) * | 1975-03-31 | 1976-12-28 | Viking Electronics, Inc. | Telephone privacy device |
| JPS5341111A (en) * | 1976-09-28 | 1978-04-14 | Toshiba Corp | Dial signal sending device |
| PT68279A (en) * | 1977-08-15 | 1978-08-01 | Goodyear Tire & Rubber | Pneumatic tire and pneumatic tire mounted on a rim |
| JPS56112194A (en) * | 1980-02-12 | 1981-09-04 | Nec Corp | Omnibus circuit device |
| CA1166777A (en) * | 1981-03-23 | 1984-05-01 | Gordon D. Benning | Home telephone exchange |
| CA1169597A (en) * | 1981-09-11 | 1984-06-19 | Gordon D. Benning | Home communications and control system |
-
1986
- 1986-02-25 CA CA000502609A patent/CA1244978A/en not_active Expired
- 1986-03-06 WO PCT/US1986/000477 patent/WO1986006570A1/en not_active Ceased
- 1986-03-06 KR KR860700931A patent/KR880700581A/ko not_active Ceased
- 1986-03-06 JP JP61501722A patent/JPS62502579A/ja active Pending
- 1986-03-06 EP EP86902134A patent/EP0221090A1/en not_active Ceased
- 1986-04-16 AU AU56147/86A patent/AU588305B2/en not_active Ceased
- 1986-04-25 ES ES554358A patent/ES8707060A1/es not_active Expired
- 1986-04-25 MX MX2317A patent/MX161903A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR880700581A (ko) | 1988-03-15 |
| JPS62502579A (ja) | 1987-10-01 |
| AU588305B2 (en) | 1989-09-14 |
| WO1986006570A1 (en) | 1986-11-06 |
| MX161903A (es) | 1991-03-01 |
| ES8707060A1 (es) | 1987-07-16 |
| CA1244978A (en) | 1988-11-15 |
| AU5614786A (en) | 1986-10-30 |
| EP0221090A1 (en) | 1987-05-13 |
Similar Documents
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|---|---|---|
| NO854602L (no) | Modem for telefonsystemer. | |
| DE3688351D1 (de) | Fernsprecher. | |
| DE3650344D1 (de) | Übertragungsendgerät. | |
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| DE3668579D1 (de) | Schmelzrohrverbindungssystem. | |
| DE3689457D1 (de) | Radiofernsprechsystem. | |
| DE3786222D1 (de) | Fernsprechsystem. | |
| FI862576A0 (fi) | Telekommunikationssystem. | |
| NO870449L (no) | Digitalt kommunikasjonssystem. | |
| DE3689010D1 (de) | Schnurloses Fernsprechsystem. | |
| IT1205753B (it) | Sistema di trasmissione via telefono | |
| DE3686356D1 (de) | Verbindungsklemmensysteme. | |
| DE3788520D1 (de) | Leitungsklemme. | |
| ES554358A0 (es) | Sistema de comunicacion telefonica de linea unica | |
| BR8701012A (pt) | Sistema de comunicacao | |
| ES536153A0 (es) | Sistema de telecomunicaciones | |
| BR8605552A (pt) | Instalacao telefonica | |
| DK416987D0 (da) | Telefonliniegraenseflademodul | |
| ATE106992T1 (de) | Verbindungssystem. | |
| FI854853L (fi) | Biltelefonsystem. | |
| NL193041B (nl) | Microfoonstelsel. | |
| NO853552L (no) | Digitalt kommunikasjonssystem. | |
| IT8423103A0 (it) | Sistema di segreteria telefonica. | |
| ES532674A0 (es) | Sistema de interfonia | |
| FI863053A7 (fi) | Viestintälaitteita varten tarkoitettu liitäntälista. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |
Effective date: 19960506 |