JPS5552614A - Digital level variable unit - Google Patents
Digital level variable unitInfo
- Publication number
- JPS5552614A JPS5552614A JP12657278A JP12657278A JPS5552614A JP S5552614 A JPS5552614 A JP S5552614A JP 12657278 A JP12657278 A JP 12657278A JP 12657278 A JP12657278 A JP 12657278A JP S5552614 A JPS5552614 A JP S5552614A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- pcm
- recording medium
- recorder
- sound recorder
- 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
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/002—Control of digital or coded signals
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
PURPOSE:To make it possible to change PCM signals arbitrarily correspondingly to the level of original analogue signals equivalently. CONSTITUTION:In case that PCM signals recorded on recording medium 14 of one PCM sound recorder 1 are transferred to the other PCM sound recorder and are recorded again on recording medium 24 of recorder 2, PCM signals led out from demodulator circuit 15 and digital signals having weight corresponding to the voltage outputted from variable voltage generator 30 are multiplied by multiplier circuit 32 to output PCM signals which are changed according to magnitude of these weight signals, and these multiplied PCM signals are transferred to recording medium 24 through modulator circuit 23 of PCM sound recorder 2, thus recording signals again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12657278A JPS5552614A (en) | 1978-10-13 | 1978-10-13 | Digital level variable unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12657278A JPS5552614A (en) | 1978-10-13 | 1978-10-13 | Digital level variable unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5552614A true JPS5552614A (en) | 1980-04-17 |
Family
ID=14938476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12657278A Pending JPS5552614A (en) | 1978-10-13 | 1978-10-13 | Digital level variable unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5552614A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0430236A2 (en) * | 1989-11-30 | 1991-06-05 | Kabushiki Kaisha Toshiba | Power amplifier |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5224914B2 (en) * | 1972-10-16 | 1977-07-04 | ||
JPS5360130A (en) * | 1976-11-10 | 1978-05-30 | Nippon Hoso Kyokai <Nhk> | Level control circuit for digital signal |
-
1978
- 1978-10-13 JP JP12657278A patent/JPS5552614A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5224914B2 (en) * | 1972-10-16 | 1977-07-04 | ||
JPS5360130A (en) * | 1976-11-10 | 1978-05-30 | Nippon Hoso Kyokai <Nhk> | Level control circuit for digital signal |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0430236A2 (en) * | 1989-11-30 | 1991-06-05 | Kabushiki Kaisha Toshiba | Power amplifier |
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