JPS57105855A - Driving device for pickup arm - Google Patents
Driving device for pickup armInfo
- Publication number
- JPS57105855A JPS57105855A JP18081580A JP18081580A JPS57105855A JP S57105855 A JPS57105855 A JP S57105855A JP 18081580 A JP18081580 A JP 18081580A JP 18081580 A JP18081580 A JP 18081580A JP S57105855 A JPS57105855 A JP S57105855A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- intra
- arm
- music
- 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 enable to adjust a stylus tip falling down reference position, by outputs operating the output of two intra-music detectors located near the stylus tip and of adjustable reference voltage.
CONSTITUTION: Intra-music sensors 1 and 2 provided at the tip of a pickup arm 3 are constituted with two photo detectos 6a and 6b arranged along the direction of rotation of the arm. The photo detectors 6a, 6b produce an output shown in Figs. A (a) and (b) in response to the lead-in or return and apply them to an operation processing circuit 7 and a waveform processing circuit 8. A horizontal drive control circuit 9 controls a horizontal drive section 10 with an output adjusted at the circuit 7 at an intra-music location to control the falling down position of a stylus tip 4, and controls the direction of rotation of the arm and the speed with the output of a position/speed reference voltage generating section 11 and an am speed detection section 12 via the horizontal drive section 10 at the lead-in or return. The drive timing of the circuit 9 is based on a control signal from a system controller 13.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18081580A JPS57105855A (en) | 1980-12-20 | 1980-12-20 | Driving device for pickup arm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18081580A JPS57105855A (en) | 1980-12-20 | 1980-12-20 | Driving device for pickup arm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57105855A true JPS57105855A (en) | 1982-07-01 |
Family
ID=16089831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18081580A Pending JPS57105855A (en) | 1980-12-20 | 1980-12-20 | Driving device for pickup arm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57105855A (en) |
-
1980
- 1980-12-20 JP JP18081580A patent/JPS57105855A/en active Pending
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