JPS5767336A - Adjusting circuit for sound volume - Google Patents
Adjusting circuit for sound volumeInfo
- Publication number
- JPS5767336A JPS5767336A JP14379280A JP14379280A JPS5767336A JP S5767336 A JPS5767336 A JP S5767336A JP 14379280 A JP14379280 A JP 14379280A JP 14379280 A JP14379280 A JP 14379280A JP S5767336 A JPS5767336 A JP S5767336A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- sound volume
- switching
- data signal
- microprocessor
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/08—Limiting rate of change of amplitude
Landscapes
- Noise Elimination (AREA)
Abstract
PURPOSE:To switch channels naturally at the channel selection time, by providing a data latch means where a function switching data signal and a sound volume controlling data signal are stored and by not only switching functions but also controlling the sound volume by the output of this data latch means. CONSTITUTION:A microprocessor to which the switching signal is inputted from a function switching operation part at the channel selection time of a synthesizer receiver is provided. The microprocessor gives a clock, a strobe, and a programmed data signal to a control signal generating circuit 16. The control signal generating circuit 16 consists of a shift register 17, a latch circuit 18, a decoder 19, and a drive circuit 20, and the data signal from the microprocessor is stored in the latch circuit 18 through the register 17. The output of the latch circuit 18 is given to the drive circuit 20 through the cecoder 19, and a sound volume control circuit is controlled to fade in and fade out at the function switching time, thereby switching channels naturally.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14379280A JPS5767336A (en) | 1980-10-15 | 1980-10-15 | Adjusting circuit for sound volume |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14379280A JPS5767336A (en) | 1980-10-15 | 1980-10-15 | Adjusting circuit for sound volume |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5767336A true JPS5767336A (en) | 1982-04-23 |
Family
ID=15347088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14379280A Pending JPS5767336A (en) | 1980-10-15 | 1980-10-15 | Adjusting circuit for sound volume |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5767336A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61128844U (en) * | 1985-01-31 | 1986-08-12 | ||
JPS63267023A (en) * | 1987-04-24 | 1988-11-04 | Matsushita Electric Ind Co Ltd | Sound volume attenuating equipment |
EP0727780A2 (en) * | 1995-02-16 | 1996-08-21 | Kabushiki Kaisha Toshiba | Output control system for switchable audio channels |
-
1980
- 1980-10-15 JP JP14379280A patent/JPS5767336A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61128844U (en) * | 1985-01-31 | 1986-08-12 | ||
JPS63267023A (en) * | 1987-04-24 | 1988-11-04 | Matsushita Electric Ind Co Ltd | Sound volume attenuating equipment |
JPH0648788B2 (en) * | 1987-04-24 | 1994-06-22 | 松下電器産業株式会社 | Volume attenuator |
EP0727780A2 (en) * | 1995-02-16 | 1996-08-21 | Kabushiki Kaisha Toshiba | Output control system for switchable audio channels |
EP0727780A3 (en) * | 1995-02-16 | 1996-11-27 | Toshiba Kk | Output control system for switchable audio channels |
US5915066A (en) * | 1995-02-16 | 1999-06-22 | Kabushiki Kaisha Toshiba | Output control system for switchable audio channels |
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