JPS55117702A - Record reproducing device - Google Patents
Record reproducing deviceInfo
- Publication number
- JPS55117702A JPS55117702A JP2399279A JP2399279A JPS55117702A JP S55117702 A JPS55117702 A JP S55117702A JP 2399279 A JP2399279 A JP 2399279A JP 2399279 A JP2399279 A JP 2399279A JP S55117702 A JPS55117702 A JP S55117702A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- wow
- cartridge
- displacement detecting
- detecting method
- 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 reduce a wow effectively by providing a trace arm displacement detecting method and eccentric wow correcting method.
CONSTITUTION: Arm-base displacement detecting method 24 consisting of plate resistor 25, conductive brush 26 fixed to arm base 12, and DC power supply 27 is provided and connected to driving part 14 which puts tone arm 2 into y-directional motion through filter 28, phase shifter 29 and power amplifier 30. Consequently, eccentricity of record disk 1 moves cartridge 3 in the x direction according to the movement of a record sound groove to deflect tone arm 2 to the left and right, and motor 16 turns by the output of angle detector 15 to move arm base 12 nearly in phase with cartridge 3. At this time, the output of displacement detecting method 24 is converted into an AC signal, which is phase-shifted and amplified before being inputted to driving part 14, and consequently tone-arm cartridge 3 is brought under y-directional movement control to eliminate substantially movement caused by the frequency deviation of a reproduced signal, so that a wow will be canceled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2399279A JPS55117702A (en) | 1979-02-28 | 1979-02-28 | Record reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2399279A JPS55117702A (en) | 1979-02-28 | 1979-02-28 | Record reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55117702A true JPS55117702A (en) | 1980-09-10 |
Family
ID=12126067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2399279A Pending JPS55117702A (en) | 1979-02-28 | 1979-02-28 | Record reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55117702A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075923A2 (en) * | 1981-09-28 | 1983-04-06 | Matsushita Electric Industrial Co., Ltd. | Apparatus for controlling linear tracking arm in record player |
-
1979
- 1979-02-28 JP JP2399279A patent/JPS55117702A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075923A2 (en) * | 1981-09-28 | 1983-04-06 | Matsushita Electric Industrial Co., Ltd. | Apparatus for controlling linear tracking arm in record player |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5553981A (en) | Magnetic reproducer | |
JPS57167172A (en) | High density information recording and reproducing system | |
JPS6213872B2 (en) | ||
GB1435969A (en) | Reproducing apparatus for a disc type record medium | |
GB2055237A (en) | High-speed reproducing system in apparatus for reproducinginformation signals recorded on a rotary recording medium | |
JPS55117702A (en) | Record reproducing device | |
JPS56157182A (en) | Tracking system | |
JPS55125532A (en) | Magnetic recorder/reproducer | |
JPS5517873A (en) | Support unit of cutter head in record original disc recording device | |
JPS57164475A (en) | Head positioning system | |
JPS5542372A (en) | Magnetic recording and reproducing device | |
JPS5755567A (en) | Tracking controller | |
JPS5528548A (en) | Tone arm device | |
JPS5528551A (en) | Tone arm device | |
JPS57120269A (en) | Disk recording and reproducing device | |
JPS5362509A (en) | Recording-reproducing method for rotary magnetic disk | |
JPS5718024A (en) | Head height position controller of magnetic recording and reproducing device | |
JPS57141180A (en) | Recording and reproducing device | |
JPS5542319A (en) | Tracking system of recording reproducing device for information signal | |
GB765861A (en) | Improvements in or relating to magnetic reproducing apparatus | |
JPS5755530A (en) | Head tracking controller | |
JPS5262408A (en) | Revolving object control system in magnetic recording reproducer | |
JPS5647944A (en) | Magnetic tape feed controlling system | |
JPS55135331A (en) | Magnetic recording and reproducing device | |
JPS5750323A (en) | Video signal recording and reproducing device |