JPS6477227A - Receiver of control signal for emergency information broadcast - Google Patents
Receiver of control signal for emergency information broadcastInfo
- Publication number
- JPS6477227A JPS6477227A JP20011488A JP20011488A JPS6477227A JP S6477227 A JPS6477227 A JP S6477227A JP 20011488 A JP20011488 A JP 20011488A JP 20011488 A JP20011488 A JP 20011488A JP S6477227 A JPS6477227 A JP S6477227A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- code
- control signal
- outputted
- time
- 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.)
- Pending
Links
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
PURPOSE:To surely receive an emergency broadcast in a short time by using an N-unit frequency shift keying signal of an n-bit code, which is obtained by encoding two specific frequencies in time series in accordance with control information, as a control signal for emergency information broadcast. CONSTITUTION:In a transmission station, a program signal break switch 4 and a control signal insertion switch 5 are operated at the time of necessity, and a program signal is interrupted during this time to transmit the Nunit frequency shift keying signal of the n-bit code as the emergency information control signal. In the reception side, a coincidence signal is outputted from a decoder 109 when the n-bit input signal coincides with a specific code. When the number of times of this coincidence signal output exceeds a constant, it is judged that a fundamental unit of the code is received, and a decision pulse is outputted from a counter 113. This output is counted by a counter 115; and when the counted value reaches a constant, a confirmation pulse is outputted and the interrupted time series of the code is decided by a secondary code discriminating circuit 117.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20011488A JPS6477227A (en) | 1988-08-12 | 1988-08-12 | Receiver of control signal for emergency information broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20011488A JPS6477227A (en) | 1988-08-12 | 1988-08-12 | Receiver of control signal for emergency information broadcast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6477227A true JPS6477227A (en) | 1989-03-23 |
Family
ID=16419062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20011488A Pending JPS6477227A (en) | 1988-08-12 | 1988-08-12 | Receiver of control signal for emergency information broadcast |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6477227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749050A (en) * | 1996-10-07 | 1998-05-05 | Kim; Jae Sung | Automatic emergency alarm reception apparatus using specific frequency |
| JP2012182686A (en) * | 2011-03-02 | 2012-09-20 | Taiyo Denshi Kk | Emergency broadcasting radio receiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643383A (en) * | 1987-06-25 | 1989-01-09 | Toshiba Corp | Diagnostic device for motor-operated valve |
-
1988
- 1988-08-12 JP JP20011488A patent/JPS6477227A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643383A (en) * | 1987-06-25 | 1989-01-09 | Toshiba Corp | Diagnostic device for motor-operated valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749050A (en) * | 1996-10-07 | 1998-05-05 | Kim; Jae Sung | Automatic emergency alarm reception apparatus using specific frequency |
| JP2012182686A (en) * | 2011-03-02 | 2012-09-20 | Taiyo Denshi Kk | Emergency broadcasting radio receiver |
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