JPS5455109A - Controller for signal level - Google Patents
Controller for signal levelInfo
- Publication number
- JPS5455109A JPS5455109A JP12204777A JP12204777A JPS5455109A JP S5455109 A JPS5455109 A JP S5455109A JP 12204777 A JP12204777 A JP 12204777A JP 12204777 A JP12204777 A JP 12204777A JP S5455109 A JPS5455109 A JP S5455109A
- Authority
- JP
- Japan
- Prior art keywords
- signal level
- gain
- input signal
- output
- transmission line
- 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
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
PURPOSE: To control and set an output signal level to a certain value by controlling the gain of the amplifier on a signal transmission line corresponding to an input signal level.
CONSTITUTION: Input signal (vi) from transmission line 11 is supplied to both variable gain circuit 12 and level sensor 13, where the effective value of the signal is detected to generate a DC voltage equivalent to the input signal level, and its output is supplied via gain circuit 14 with a gain of "-1" to circuit 12 so as to control its gain, so that the output will be sent out to transmission line 16. Consequently, an output signal level of a fixed value can be obtained regardless of the variation in input signal level
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12204777A JPS5455109A (en) | 1977-10-12 | 1977-10-12 | Controller for signal level |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12204777A JPS5455109A (en) | 1977-10-12 | 1977-10-12 | Controller for signal level |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455109A true JPS5455109A (en) | 1979-05-02 |
Family
ID=14826283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12204777A Pending JPS5455109A (en) | 1977-10-12 | 1977-10-12 | Controller for signal level |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455109A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07307633A (en) * | 1980-03-31 | 1995-11-21 | Hewlett Packard Co <Hp> | Signal attenuator |
JP2009108565A (en) * | 2007-10-30 | 2009-05-21 | Sumikei-Nikkei Engineering Co Ltd | Wave overtopping prevention structure |
-
1977
- 1977-10-12 JP JP12204777A patent/JPS5455109A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07307633A (en) * | 1980-03-31 | 1995-11-21 | Hewlett Packard Co <Hp> | Signal attenuator |
JP2009108565A (en) * | 2007-10-30 | 2009-05-21 | Sumikei-Nikkei Engineering Co Ltd | Wave overtopping prevention structure |
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