JPS5680857A - Player - Google Patents
PlayerInfo
- Publication number
- JPS5680857A JPS5680857A JP15860979A JP15860979A JPS5680857A JP S5680857 A JPS5680857 A JP S5680857A JP 15860979 A JP15860979 A JP 15860979A JP 15860979 A JP15860979 A JP 15860979A JP S5680857 A JPS5680857 A JP S5680857A
- Authority
- JP
- Japan
- Prior art keywords
- pickup
- correct position
- regeneration
- electro
- lowered
- 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
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
Abstract
PURPOSE: To maintain a correct position by swinging a pickup which is running relatively to an extending direction of a recording track up and down or in right and left direction periodically with respect to the base of a recording center line and detecting the fluctuation of the regeneration signal.
CONSTITUTION: The pickup 1 is provided with a head 4 through an electro-mechanical converter 3 at an end portion of the arm 2. By applying a swinging signal to terminals 3a, 3b of the converter 3, the head 4 is so composed as to be swung in the right and left direction with respect to the recording center line. When the pickup 1 traces a correct position, the peak value of the regeneration signal scarcely changes. However, when the pickup shifts upward, the regeneration output is lowered and when it is shifted downward, the regeneration output is lowered. When the pickup position is controlled so as to return to a correct position by detecting this change through the electro-mechanical converter 9, a correct trace is constantly performed. Accordingly, by composing the pickup in this manner, the correct position of the pickup is maintained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15860979A JPS5680857A (en) | 1979-12-05 | 1979-12-05 | Player |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15860979A JPS5680857A (en) | 1979-12-05 | 1979-12-05 | Player |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680857A true JPS5680857A (en) | 1981-07-02 |
Family
ID=15675438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15860979A Pending JPS5680857A (en) | 1979-12-05 | 1979-12-05 | Player |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680857A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0441399A2 (en) * | 1990-02-09 | 1991-08-14 | Canon Kabushiki Kaisha | Position displacement detecting apparatus |
US5404349A (en) * | 1990-02-09 | 1995-04-04 | Canon Kabushiki Kaisha | Position displacement detecting apparatus |
-
1979
- 1979-12-05 JP JP15860979A patent/JPS5680857A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0441399A2 (en) * | 1990-02-09 | 1991-08-14 | Canon Kabushiki Kaisha | Position displacement detecting apparatus |
US5404349A (en) * | 1990-02-09 | 1995-04-04 | Canon Kabushiki Kaisha | Position displacement detecting apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52143790A (en) | Driving system of light emitting elements | |
JPS5369617A (en) | Automatic tracking apparatus | |
ZA777684B (en) | 7 e-(alkoxycarbonyl)-6e-alkyl/halo-17-hydroxy-3-oxo-17a-pregn-4-ene-21-carboxylic acid gamma-lactones and corresponding 21-carboxylic acids,their salts and esters | |
JPS5680857A (en) | Player | |
JPS5280007A (en) | Video disc | |
JPS5419718A (en) | Locating system of high accuracy | |
JPS53110502A (en) | Record player | |
JPS5469026A (en) | Control system for ink-jet type nc drawing machine | |
JPS53149007A (en) | Magnetic tape running deive system for magnetic recording and reproducing apparatus | |
JPS5345212A (en) | Corrector for tracking | |
JPS5225489A (en) | Head light automatic controller | |
JPS5417807A (en) | Lead-out controller of record players | |
JPS5373113A (en) | Recording and reproducing apparatus | |
JPS52106631A (en) | Ink jet recording unit | |
JPS5327418A (en) | Head position adjustment for magnetic recording and reproducing system and magnetic recording medium therefor | |
JPS52128110A (en) | Magnetic disk unit | |
JPS52104907A (en) | Information signal reproducing system | |
JPS5333106A (en) | Magnetic | |
JPS53145685A (en) | Running condition recording system | |
JPS52113709A (en) | Track switching control circuit | |
JPS5347842A (en) | Thermal head | |
JPS5374006A (en) | Scanning controller for video head | |
JPS528804A (en) | Magnetic recording body | |
JPS5229702A (en) | Signal record/play method | |
JPS5217803A (en) | Specific signal recording device |