JPS55118093A - Volume control system in sound annunciator - Google Patents
Volume control system in sound annunciatorInfo
- Publication number
- JPS55118093A JPS55118093A JP2640979A JP2640979A JPS55118093A JP S55118093 A JPS55118093 A JP S55118093A JP 2640979 A JP2640979 A JP 2640979A JP 2640979 A JP2640979 A JP 2640979A JP S55118093 A JPS55118093 A JP S55118093A
- Authority
- JP
- Japan
- Prior art keywords
- control system
- volume control
- sound annunciator
- annunciator
- sound
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2640979A JPS55118093A (en) | 1979-03-07 | 1979-03-07 | Volume control system in sound annunciator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2640979A JPS55118093A (en) | 1979-03-07 | 1979-03-07 | Volume control system in sound annunciator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55118093A true JPS55118093A (en) | 1980-09-10 |
Family
ID=12192744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2640979A Pending JPS55118093A (en) | 1979-03-07 | 1979-03-07 | Volume control system in sound annunciator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55118093A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5790697A (en) * | 1980-11-28 | 1982-06-05 | Tokyo Shibaura Electric Co | Notifying device |
JPS60120499U (en) * | 1984-01-25 | 1985-08-14 | 松下電工株式会社 | Variable duty ratio circuit for sound output circuit |
-
1979
- 1979-03-07 JP JP2640979A patent/JPS55118093A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5790697A (en) * | 1980-11-28 | 1982-06-05 | Tokyo Shibaura Electric Co | Notifying device |
JPS60120499U (en) * | 1984-01-25 | 1985-08-14 | 松下電工株式会社 | Variable duty ratio circuit for sound output circuit |
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