JPS566173A - Distress-signal receiving information unit - Google Patents
Distress-signal receiving information unitInfo
- Publication number
- JPS566173A JPS566173A JP8232879A JP8232879A JPS566173A JP S566173 A JPS566173 A JP S566173A JP 8232879 A JP8232879 A JP 8232879A JP 8232879 A JP8232879 A JP 8232879A JP S566173 A JPS566173 A JP S566173A
- Authority
- JP
- Japan
- Prior art keywords
- distress
- circuit
- gate
- information unit
- signal receiving
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To make it possible to find victims of a distress at sea securely by making a report by an information unit when a distress signal is received. CONSTITUTION:A distress signal, once applied to input terminal 1, is filtered by filter 2 and then applied to gate signal generator 3 and gate circuit 4. Gate signal generator 3 releases gate circuit 4 for a certain time and counting circuit 5 counts the number of pulses of the distress signal. When the count value of counting circuit 5 exceeds the reference value of reference pulse generator 7, comparing circuit 6 generates an output, and consequently switch circuit 8 is driven to put timer 9 into operation, activating display unit 10 for a certain time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8232879A JPS566173A (en) | 1979-06-26 | 1979-06-26 | Distress-signal receiving information unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8232879A JPS566173A (en) | 1979-06-26 | 1979-06-26 | Distress-signal receiving information unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS566173A true JPS566173A (en) | 1981-01-22 |
Family
ID=13771480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8232879A Pending JPS566173A (en) | 1979-06-26 | 1979-06-26 | Distress-signal receiving information unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS566173A (en) |
-
1979
- 1979-06-26 JP JP8232879A patent/JPS566173A/en active Pending
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