JPS541069A - Automatic judgement apparatus of frequencies - Google Patents
Automatic judgement apparatus of frequenciesInfo
- Publication number
- JPS541069A JPS541069A JP6611777A JP6611777A JPS541069A JP S541069 A JPS541069 A JP S541069A JP 6611777 A JP6611777 A JP 6611777A JP 6611777 A JP6611777 A JP 6611777A JP S541069 A JPS541069 A JP S541069A
- Authority
- JP
- Japan
- Prior art keywords
- frequencies
- voltage
- automatic judgement
- judgement apparatus
- power source
- 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
Abstract
PURPOSE: To cut the voltage above a fixed voltage by rectifying an a.c. power source, charge a time constant circuit with the rectified voltage thereof and enable the supply frequency to be automatically judged according to turning on of the power source from the level of the discharge voltage thereof.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6611777A JPS541069A (en) | 1977-06-03 | 1977-06-03 | Automatic judgement apparatus of frequencies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6611777A JPS541069A (en) | 1977-06-03 | 1977-06-03 | Automatic judgement apparatus of frequencies |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS541069A true JPS541069A (en) | 1979-01-06 |
Family
ID=13306608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6611777A Pending JPS541069A (en) | 1977-06-03 | 1977-06-03 | Automatic judgement apparatus of frequencies |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS541069A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56164952A (en) * | 1980-05-23 | 1981-12-18 | Nippon Steel Corp | Transmitting and receiving method for ultrasonic wave by laser beam |
JPH0523920B2 (en) * | 1989-09-08 | 1993-04-06 | Ikeshin Fuoomu Kk |
-
1977
- 1977-06-03 JP JP6611777A patent/JPS541069A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56164952A (en) * | 1980-05-23 | 1981-12-18 | Nippon Steel Corp | Transmitting and receiving method for ultrasonic wave by laser beam |
JPS6243497B2 (en) * | 1980-05-23 | 1987-09-14 | Nippon Steel Corp | |
JPH0523920B2 (en) * | 1989-09-08 | 1993-04-06 | Ikeshin Fuoomu Kk |
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