JPS5568764A - Emergency information system - Google Patents
Emergency information systemInfo
- Publication number
- JPS5568764A JPS5568764A JP14203378A JP14203378A JPS5568764A JP S5568764 A JPS5568764 A JP S5568764A JP 14203378 A JP14203378 A JP 14203378A JP 14203378 A JP14203378 A JP 14203378A JP S5568764 A JPS5568764 A JP S5568764A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- call
- terminal unit
- extension
- center unit
- 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
- 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)
Abstract
PURPOSE:To simplify the device constitution without installing any special circuit for generation of the warning tone by transmitting the warning tone through the terminal unit prior to opening of the call state and at the same time giving the control to the extension of the call state via the control of the center unit. CONSTITUTION:The emergency information system formed by providing the terminal unit containing start switch 1 and contact 2 of the sensor and the center unit containing call extension control circuit 32. Thus the center unit is called out by starting automatic dial circuit 6 through operation of contact 2 of the terminal unit or switch 1, and the talking is secured between the terminal unit and the center unit. Then the following circuits are provided to the terminal unit: timer circuit 14 which opens the call for a fixed time; signal transmission/reception circuit 10 which transmits the warning tone prior to opening of the call state; and control circuit 5 which controls the timing for the signal generation. At the same time, call transmission circuit 24 and call extension circuit 32 are provided to the center unit side. And timer circuit 14 is controlled via operation of switch 31 to secure the extension for the call state in a fixed time limit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14203378A JPS5831146B2 (en) | 1978-11-17 | 1978-11-17 | Emergency notification method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14203378A JPS5831146B2 (en) | 1978-11-17 | 1978-11-17 | Emergency notification method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5568764A true JPS5568764A (en) | 1980-05-23 |
JPS5831146B2 JPS5831146B2 (en) | 1983-07-04 |
Family
ID=15305794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14203378A Expired JPS5831146B2 (en) | 1978-11-17 | 1978-11-17 | Emergency notification method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5831146B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58204664A (en) * | 1982-05-24 | 1983-11-29 | Secom Co Ltd | Informing device of failure |
JPH0563838A (en) * | 1991-09-03 | 1993-03-12 | Rinnai Corp | Housing information notice system |
-
1978
- 1978-11-17 JP JP14203378A patent/JPS5831146B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58204664A (en) * | 1982-05-24 | 1983-11-29 | Secom Co Ltd | Informing device of failure |
JPS6337549B2 (en) * | 1982-05-24 | 1988-07-26 | Sekomu Kk | |
JPH0563838A (en) * | 1991-09-03 | 1993-03-12 | Rinnai Corp | Housing information notice system |
Also Published As
Publication number | Publication date |
---|---|
JPS5831146B2 (en) | 1983-07-04 |
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