JPS5570723A - Listening monitor - Google Patents
Listening monitorInfo
- Publication number
- JPS5570723A JPS5570723A JP14447478A JP14447478A JPS5570723A JP S5570723 A JPS5570723 A JP S5570723A JP 14447478 A JP14447478 A JP 14447478A JP 14447478 A JP14447478 A JP 14447478A JP S5570723 A JPS5570723 A JP S5570723A
- Authority
- JP
- Japan
- Prior art keywords
- control section
- abnormal sound
- unit
- signal
- wire
- 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
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To avoid noise from the speaker at all times and useless use of recording paper, by adding the part detecting abnormal sound and the part controlling it to the listening monitor.
CONSTITUTION: The sound made from the unit 1 is converted into electric signal with the microphone 2 and this is delivered to the amplifier 4 through the wire 3. After this signal is amplified with the amplifier 4, the signal of respective waveform is fed to the failure detection section 10 via the wire 9 and the waveform are converted into rectangular wave signals. Only when the rectangular waveform of abnormal sound is detected other than the rectangular waveforms of normal tone, the detection signal is fed to the control section 11 via the wire 14 from the abnormal tone detection section 10 and the control section 11 starts operation with this. With the operation of the control section 11, the speaker 7 broadcasts abnormal sound, the recorder 8 records abnormal sound, and the listenging objective unit control section 13 outputs the display of unit stop to tell the operator the failure of the unit 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14447478A JPS5570723A (en) | 1978-11-21 | 1978-11-21 | Listening monitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14447478A JPS5570723A (en) | 1978-11-21 | 1978-11-21 | Listening monitor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5570723A true JPS5570723A (en) | 1980-05-28 |
Family
ID=15363129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14447478A Pending JPS5570723A (en) | 1978-11-21 | 1978-11-21 | Listening monitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570723A (en) |
-
1978
- 1978-11-21 JP JP14447478A patent/JPS5570723A/en active Pending
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