BE707768A - - Google Patents
Info
- Publication number
- BE707768A BE707768A BE707768DA BE707768A BE 707768 A BE707768 A BE 707768A BE 707768D A BE707768D A BE 707768DA BE 707768 A BE707768 A BE 707768A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6617451A NL6617451A (de) | 1966-12-12 | 1966-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE707768A true BE707768A (de) | 1968-06-11 |
Family
ID=19798430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE707768D BE707768A (de) | 1966-12-12 | 1967-12-11 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3598917A (de) |
| BE (1) | BE707768A (de) |
| DE (1) | DE1537776A1 (de) |
| FR (1) | FR1559686A (de) |
| GB (1) | GB1180140A (de) |
| NL (1) | NL6617451A (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2088881A5 (de) * | 1970-04-28 | 1972-01-07 | Fichet Bauche | |
| US3950618A (en) * | 1971-03-25 | 1976-04-13 | Bloisi Albertoni De Lemos | System for public opinion research |
| US3700823A (en) * | 1971-09-02 | 1972-10-24 | Northern Electric Co | Combined alarm transmission and service call system |
| BE789388A (fr) * | 1971-11-22 | 1973-01-15 | Telecomunicazioni Soc It | Systeme de tele-surveillance utilisant le reseau telephonique pour la transmission des informations |
| DE2158278C3 (de) * | 1971-11-24 | 1985-12-12 | Keidel, Kurt, 8000 München | Verfahren und Schaltungsanordnung zum Verbinden von beliebigen Teilnehmerstellen, die an einer Fernsprechvermittlungsanlage angeschlossen sind, mit einer von mehreren Abfragestellen in einer Datenzentrale |
| US3937889A (en) * | 1973-01-15 | 1976-02-10 | Sperry Rand Corporation | Data communication apparatus for use in a telephone system |
| FR2430146B1 (fr) * | 1978-06-29 | 1986-05-09 | Stratel Sa | Dispositif telephonique d'appel automatique |
| FR2446569B2 (fr) * | 1978-12-13 | 1987-01-23 | Stratel | Dispositif telephonique d'appel automatique |
| FR2446519A1 (fr) * | 1979-01-11 | 1980-08-08 | Thomson Csf | Systeme de signalisation sur ligne de raccordement d'utilisation d'un reseau telephonique et reseau telephonique comportant de tels systemes |
| DE2913012A1 (de) * | 1979-03-31 | 1980-10-09 | Vierling Oskar | Anordnung zur uebertragung von notrufen ueber fernsprechleitungen |
| EP0047267A4 (de) * | 1980-03-10 | 1982-07-12 | Denis James Morgan | Fernmeldesystem. |
| US5708548A (en) * | 1996-05-24 | 1998-01-13 | Cascade Systems Inc. | Protection device for a spa pack |
| US5937036A (en) * | 1996-12-20 | 1999-08-10 | Siemens Information And Communication Networks, Inc. | Method and apparatus for sensing external alarms using a standard telephony interface |
| US6628779B1 (en) * | 1998-05-11 | 2003-09-30 | Telcordia Technologies, Inc. | Method and system for scaleable near-end speech cancellation for tip and ring tone signal detectors |
| CN112540945B (zh) * | 2021-02-01 | 2022-04-12 | 郑蕊蕊 | 带有新型键盘的会计专用计算机 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2911474A (en) * | 1957-11-01 | 1959-11-03 | Bell Telephone Labor Inc | Telephone alarm system |
| US3492426A (en) * | 1965-03-18 | 1970-01-27 | Davis Sidney Foreman | Telephone alarm system where a central station alerts a preselected agency in response to a received pulse coded frequency signal identifying a particular alarm condition at a particular subscriber station |
| US3401234A (en) * | 1965-04-16 | 1968-09-10 | Rimac Ltd | Combined audio program and alarm signaling system with line supervision |
| US3484553A (en) * | 1966-04-26 | 1969-12-16 | Clarence Anding Lovell | Alarm system connected to a telephone subscriber's circuit so as to transmit an alarm through the central office without interfering with normal telephone operation |
-
1966
- 1966-12-12 NL NL6617451A patent/NL6617451A/xx unknown
-
1967
- 1967-12-05 DE DE19671537776 patent/DE1537776A1/de active Pending
- 1967-12-07 GB GB55744/67A patent/GB1180140A/en not_active Expired
- 1967-12-11 BE BE707768D patent/BE707768A/xx unknown
- 1967-12-12 FR FR1559686D patent/FR1559686A/fr not_active Expired
- 1967-12-12 US US689899A patent/US3598917A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1180140A (en) | 1970-02-04 |
| FR1559686A (de) | 1969-03-14 |
| DE1537776A1 (de) | 1969-12-18 |
| NL6617451A (de) | 1968-06-13 |
| US3598917A (en) | 1971-08-10 |