JPS6439655A - Tracking controller for magnetic recording and reproducing device - Google Patents
Tracking controller for magnetic recording and reproducing deviceInfo
- Publication number
- JPS6439655A JPS6439655A JP62195703A JP19570387A JPS6439655A JP S6439655 A JPS6439655 A JP S6439655A JP 62195703 A JP62195703 A JP 62195703A JP 19570387 A JP19570387 A JP 19570387A JP S6439655 A JPS6439655 A JP S6439655A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- tracking
- rotary
- circuit
- converted
- 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 make a VTR of surface and deep layer recording perform optimum control, by controlling tracking by adding digital signals in which the reproducing signals of a rotary video head and a rotary HIFI audio head are envelope- detected and converted, respectively. CONSTITUTION:A signal reproduced by the rotary video heads 4a and 4b is detected at a video signal envelope detection circuit 43, and after being converted to the digital signal at an A/D conversion circuit 45, is stored in a memory circuit 47. Also, the signal reproduced by the rotary HIFI audio head 40a and 40b is detected at an HIFI audio signal envelope detection circuit 44, and after being converted to the digital signal at an A/D conversion circuit 46, is stored in a memory circuit 48. The voltage values of the circuits 47 and 48 are impressed on a microcomputer 49, then, added. A tracking control signal generation circuit in the microcomputer 49 generates a tracking control signal which represents an amount of tracking in which an added synthesis envelope value becomes the maximum, and the speed of a capstan motor 9 and the amount of tracking are controlled based on the signal.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195703A JPH0687332B2 (en) | 1987-08-04 | 1987-08-04 | Tracking control device for magnetic recording / reproducing device |
DE3889995T DE3889995T2 (en) | 1987-08-04 | 1988-08-02 | Track control for magnetic recording and / or playback device. |
EP88307117A EP0302696B1 (en) | 1987-08-04 | 1988-08-02 | Tracking control for magnetic recording and/or reproducing apparatus |
US07/228,166 US5107381A (en) | 1987-08-04 | 1988-08-04 | Automatic tracking control for magnetic recording and/or reproducing apparatus with reference phase setting capability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195703A JPH0687332B2 (en) | 1987-08-04 | 1987-08-04 | Tracking control device for magnetic recording / reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6439655A true JPS6439655A (en) | 1989-02-09 |
JPH0687332B2 JPH0687332B2 (en) | 1994-11-02 |
Family
ID=16345574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62195703A Expired - Fee Related JPH0687332B2 (en) | 1987-08-04 | 1987-08-04 | Tracking control device for magnetic recording / reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0687332B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03141064A (en) * | 1989-10-26 | 1991-06-17 | Mitsubishi Electric Corp | Tracking controller of magnetic recording/reproducing device |
JPH0737297A (en) * | 1993-05-17 | 1995-02-07 | Victor Co Of Japan Ltd | Signal reproducing device |
-
1987
- 1987-08-04 JP JP62195703A patent/JPH0687332B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03141064A (en) * | 1989-10-26 | 1991-06-17 | Mitsubishi Electric Corp | Tracking controller of magnetic recording/reproducing device |
JPH0737297A (en) * | 1993-05-17 | 1995-02-07 | Victor Co Of Japan Ltd | Signal reproducing device |
Also Published As
Publication number | Publication date |
---|---|
JPH0687332B2 (en) | 1994-11-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |