JPS5032000A - - Google Patents
Info
- Publication number
- JPS5032000A JPS5032000A JP49064156A JP6415674A JPS5032000A JP S5032000 A JPS5032000 A JP S5032000A JP 49064156 A JP49064156 A JP 49064156A JP 6415674 A JP6415674 A JP 6415674A JP S5032000 A JPS5032000 A JP S5032000A
- Authority
- JP
- Japan
- 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
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
- H04M11/025—Door telephones
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Lock And Its Accessories (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephonic Communication Services (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7308086A SE373474B (ja) | 1973-06-07 | 1973-06-07 | |
| SE7308086 | 1973-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5032000A true JPS5032000A (ja) | 1975-03-28 |
| JPS5925064B2 JPS5925064B2 (ja) | 1984-06-14 |
Family
ID=20317703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49064156A Expired JPS5925064B2 (ja) | 1973-06-07 | 1974-06-07 | 公衆加入電話回線網の利用方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3947641A (ja) |
| JP (1) | JPS5925064B2 (ja) |
| DE (1) | DE2426909B2 (ja) |
| GB (1) | GB1474737A (ja) |
| SE (1) | SE373474B (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266355B1 (en) * | 1985-06-27 | 1992-03-18 | TRELL, Anders, Edvard | Entrance telephone system utilizing the public subscriber telephone network |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113986A (en) * | 1977-10-21 | 1978-09-12 | Bell Telephone Laboratories, Incorporated | Telephone controlled lock release arrangement |
| US4436958A (en) | 1982-06-30 | 1984-03-13 | Western Electric Company, Inc. | System using the telephone network to control locks at a number of remote locations |
| WO1985001169A1 (en) * | 1983-08-23 | 1985-03-14 | Anders Edvard Trell | Method for transmission of alarm signals |
| US4872194A (en) * | 1983-08-23 | 1989-10-03 | Trell Anders E | Method for transmission of alarm signals utilizing an entrance telephone system |
| US4715060A (en) * | 1985-07-15 | 1987-12-22 | Lipscher Bernard N | Door message apparatus with telephone answering device |
| US4937855A (en) * | 1988-02-09 | 1990-06-26 | Viscount Industries Limited | Building security system |
| US5321742A (en) * | 1992-07-06 | 1994-06-14 | Stevens Clarke J | Entry door answering telephone system |
| AU7172194A (en) * | 1993-06-23 | 1995-01-17 | David H. Feinberg | An integrated telephone, intercom, security and control system for a multi-unit building |
| US6208727B1 (en) * | 1998-04-17 | 2001-03-27 | Nortel Networks Corporation | Method of alerting apartment residents to the arrival of visitors |
| US6993123B1 (en) * | 2000-03-10 | 2006-01-31 | Verizon Services Corp. | Intelligent access control system |
| US6885738B2 (en) * | 2003-02-25 | 2005-04-26 | Bellsouth Intellectual Property Corporation | Activation of electronic lock using telecommunications network |
| SE0401035L (sv) * | 2004-04-21 | 2005-10-22 | Anders Trell Trust | Förfarande och anordning för kommunikation/kontroll vid access |
| IT201600116295A1 (it) * | 2016-11-17 | 2018-05-17 | Giacomo Bonanno | Apertura ad impulsi programmati di piu' accessi condominiali |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3322904A (en) * | 1963-12-23 | 1967-05-30 | Avo Corp | Telephone dialing device |
| US3484561A (en) * | 1966-07-11 | 1969-12-16 | Automatic Elect Lab | Apartment telephone-intercom and door release system |
| US3557318A (en) * | 1966-09-29 | 1971-01-19 | American Telephone & Telegraph | Apartment house telephone system |
| CA917327A (en) * | 1969-11-19 | 1972-12-19 | Commercial Communications Ltd. | Telephone security device |
| CH541263A (it) * | 1970-11-09 | 1973-08-31 | Sits Soc It Telecom Siemens | Dispositivo di blocco alla teleselezione e ai servizi tassati per apparecchi telefonici allacciati a centralini telefonici privati |
| US3784757A (en) * | 1971-06-14 | 1974-01-08 | Information Flow Inc | Limited access dialing system |
| US3816662A (en) * | 1972-11-13 | 1974-06-11 | Gte Automatic Electric Lab Inc | Combination telephone and video communication system |
-
1973
- 1973-06-07 SE SE7308086A patent/SE373474B/xx unknown
-
1974
- 1974-06-03 US US05/475,646 patent/US3947641A/en not_active Expired - Lifetime
- 1974-06-04 DE DE2426909A patent/DE2426909B2/de active Granted
- 1974-06-06 GB GB2506874A patent/GB1474737A/en not_active Expired
- 1974-06-07 JP JP49064156A patent/JPS5925064B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266355B1 (en) * | 1985-06-27 | 1992-03-18 | TRELL, Anders, Edvard | Entrance telephone system utilizing the public subscriber telephone network |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2426909B2 (de) | 1978-11-02 |
| SE7308086L (ja) | 1974-12-09 |
| DE2426909C3 (ja) | 1979-06-21 |
| DE2426909A1 (de) | 1975-01-02 |
| SE373474B (ja) | 1975-02-03 |
| JPS5925064B2 (ja) | 1984-06-14 |
| GB1474737A (en) | 1977-05-25 |
| US3947641A (en) | 1976-03-30 |