JPS6448256A - Motor servo circuit for recording and reproducing device - Google Patents
Motor servo circuit for recording and reproducing deviceInfo
- Publication number
- JPS6448256A JPS6448256A JP62204358A JP20435887A JPS6448256A JP S6448256 A JPS6448256 A JP S6448256A JP 62204358 A JP62204358 A JP 62204358A JP 20435887 A JP20435887 A JP 20435887A JP S6448256 A JPS6448256 A JP S6448256A
- Authority
- JP
- Japan
- Prior art keywords
- reproduced
- information signal
- rotation speed
- rotating magnetic
- magnetic head
- 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
Abstract
PURPOSE:To ensure the head searching of a music in a high-speed search by controlling the rotation speed of a rotating magnetic head in a first servo system when a reproducing information signal exists, and controlling the rotation speed of the rotating magnetic head in a second servo system when the reproducing information signal does not exist. CONSTITUTION:While the information signal is reproduced from a recording medium, that is, while the recording part of a tape is reproduced, the rotation speed of a rotating magnetic head 2 controlled by the first servo system so that the reproduced frequencies of the information signal may conform to the reproduced frequencies at the time of the ordinary reproduction. When the reproducing information signal from the recording medium does not exist, that is, when the non-recording part of the tape is reproduced, the rotation speed of the rotating magnetic head 2 is calculated from the number of the rotations (or frequencies) of a rotation driving system (for example, reels 15 and 17) by the second servo system, and the rotation speed is controlled based on a calculated tape scanning speed. Thus, the head searching of the music in the high-speed search is assured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62204358A JPS6448256A (en) | 1987-08-18 | 1987-08-18 | Motor servo circuit for recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62204358A JPS6448256A (en) | 1987-08-18 | 1987-08-18 | Motor servo circuit for recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448256A true JPS6448256A (en) | 1989-02-22 |
Family
ID=16489188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62204358A Pending JPS6448256A (en) | 1987-08-18 | 1987-08-18 | Motor servo circuit for recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448256A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296556A (en) * | 1985-06-24 | 1986-12-27 | Sharp Corp | Head speed controller of rotary head type magnetic recording and reproducing device |
JPS6231283A (en) * | 1985-08-02 | 1987-02-10 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
-
1987
- 1987-08-18 JP JP62204358A patent/JPS6448256A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296556A (en) * | 1985-06-24 | 1986-12-27 | Sharp Corp | Head speed controller of rotary head type magnetic recording and reproducing device |
JPS6231283A (en) * | 1985-08-02 | 1987-02-10 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
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