JPS56110317A - Sound volume controller - Google Patents
Sound volume controllerInfo
- Publication number
- JPS56110317A JPS56110317A JP1328080A JP1328080A JPS56110317A JP S56110317 A JPS56110317 A JP S56110317A JP 1328080 A JP1328080 A JP 1328080A JP 1328080 A JP1328080 A JP 1328080A JP S56110317 A JPS56110317 A JP S56110317A
- Authority
- JP
- Japan
- Prior art keywords
- level
- sound volume
- voice signal
- prescribed
- sets
- 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
- 230000003321 amplification Effects 0.000 abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
PURPOSE:To facilitate an easy hearing, by increasing the amplification factor as the level of the voice signal is lowered in cas when the voice signal has a level lower than the prescribed value. CONSTITUTION:The voice of the TV signal received by the antenna 1 is delivered through the speaker 10 via the frequency discriminator 8 and the low frequency amplifying part 9. The switch S1 is set at the side of resistane R when the variable resistor 11 sets the sound volume over the prescribed level. While in case when the resistor 11 sets the sound volume under the prescribed level, the switch S1 is switched to the side of transmission line 14. In this case, the level detection circuit 16 increases the amplification factor of the amplifier 15 as the level of the detected voice signal reduces. Accordingly the voice signal of a low level can be heard even when the sound volume is lowered greatly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1328080A JPS56110317A (en) | 1980-02-06 | 1980-02-06 | Sound volume controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1328080A JPS56110317A (en) | 1980-02-06 | 1980-02-06 | Sound volume controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56110317A true JPS56110317A (en) | 1981-09-01 |
Family
ID=11828781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1328080A Pending JPS56110317A (en) | 1980-02-06 | 1980-02-06 | Sound volume controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56110317A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5817477U (en) * | 1981-07-27 | 1983-02-03 | ミサワホ−ム株式会社 | opening frame |
WO2010032327A1 (en) * | 2008-09-22 | 2010-03-25 | パイオニア株式会社 | Content reproduction controlling apparatus |
-
1980
- 1980-02-06 JP JP1328080A patent/JPS56110317A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5817477U (en) * | 1981-07-27 | 1983-02-03 | ミサワホ−ム株式会社 | opening frame |
JPS6212060Y2 (en) * | 1981-07-27 | 1987-03-25 | ||
WO2010032327A1 (en) * | 2008-09-22 | 2010-03-25 | パイオニア株式会社 | Content reproduction controlling apparatus |
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