JPS5512587A - Control unit for reproducing speed of recording media - Google Patents
Control unit for reproducing speed of recording mediaInfo
- Publication number
- JPS5512587A JPS5512587A JP8559778A JP8559778A JPS5512587A JP S5512587 A JPS5512587 A JP S5512587A JP 8559778 A JP8559778 A JP 8559778A JP 8559778 A JP8559778 A JP 8559778A JP S5512587 A JPS5512587 A JP S5512587A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- output voltage
- recording media
- revolutions
- reproducing
- 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.)
- Granted
Links
Abstract
PURPOSE: To automatically and correctly enable to set the reproducing moving speed, by controlling the rotary speed of the drive source and by making agreement the reproducing speed of the recording media with the moving speed at recording.
CONSTITUTION: The capstan motor 2 is a DC motor and it is driven with the output voltage of the amplifier 15, and the output voltage 16 of the tachogenerator built in the motor is DC and given to one input of the differential amplifier 14. Further, the output voltage 17 of the Schmitt trigger circuit 13 is given as another input, and the number of revolutions of the capstan motor 2, that is the carrying speed of the recording media 1 is determined so that the both input voltages can be equal. Thus, the output voltage related to the number of revolutions picked up from the drive source and the output voltage of the trigger circuit 13 control the number of revolutions to make agreement the reproducing speed of the recording media with the carrying speed at recording, allowing to set the reproduction carrying speed automatically and correctly.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53085597A JPS6025812B2 (en) | 1978-07-12 | 1978-07-12 | Recording media playback speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53085597A JPS6025812B2 (en) | 1978-07-12 | 1978-07-12 | Recording media playback speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5512587A true JPS5512587A (en) | 1980-01-29 |
| JPS6025812B2 JPS6025812B2 (en) | 1985-06-20 |
Family
ID=13863224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53085597A Expired JPS6025812B2 (en) | 1978-07-12 | 1978-07-12 | Recording media playback speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025812B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214152A (en) * | 1982-06-05 | 1983-12-13 | Konishiroku Photo Ind Co Ltd | Color photographic sensitive material |
| JPS63264748A (en) * | 1987-04-22 | 1988-11-01 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
| JPS63311354A (en) * | 1987-06-15 | 1988-12-20 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
| JPH04298743A (en) * | 1990-11-27 | 1992-10-22 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
-
1978
- 1978-07-12 JP JP53085597A patent/JPS6025812B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214152A (en) * | 1982-06-05 | 1983-12-13 | Konishiroku Photo Ind Co Ltd | Color photographic sensitive material |
| JPH0141975B2 (en) * | 1982-06-05 | 1989-09-08 | Konishiroku Photo Ind | |
| JPS63264748A (en) * | 1987-04-22 | 1988-11-01 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
| JPS63311354A (en) * | 1987-06-15 | 1988-12-20 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
| JPH04298743A (en) * | 1990-11-27 | 1992-10-22 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6025812B2 (en) | 1985-06-20 |
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