JPS57150101A - Detecting method for eccentricity of record disc - Google Patents
Detecting method for eccentricity of record discInfo
- Publication number
- JPS57150101A JPS57150101A JP3421381A JP3421381A JPS57150101A JP S57150101 A JPS57150101 A JP S57150101A JP 3421381 A JP3421381 A JP 3421381A JP 3421381 A JP3421381 A JP 3421381A JP S57150101 A JPS57150101 A JP S57150101A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- eccentricity
- record disc
- rotating angle
- sensors
- 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
Landscapes
- Rotational Drive Of Disk (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3421381A JPS57150101A (en) | 1981-03-10 | 1981-03-10 | Detecting method for eccentricity of record disc |
US06/343,878 US4441178A (en) | 1981-02-02 | 1982-01-29 | Method of correcting a position of a disk record on a turntable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3421381A JPS57150101A (en) | 1981-03-10 | 1981-03-10 | Detecting method for eccentricity of record disc |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57150101A true JPS57150101A (en) | 1982-09-16 |
JPS645361B2 JPS645361B2 (ja) | 1989-01-30 |
Family
ID=12407874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3421381A Granted JPS57150101A (en) | 1981-02-02 | 1981-03-10 | Detecting method for eccentricity of record disc |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57150101A (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5081305A (ja) * | 1973-11-17 | 1975-07-02 |
-
1981
- 1981-03-10 JP JP3421381A patent/JPS57150101A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5081305A (ja) * | 1973-11-17 | 1975-07-02 |
Also Published As
Publication number | Publication date |
---|---|
JPS645361B2 (ja) | 1989-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TR199701715T2 (xx) | Elde tutulan d�ner konumlu dedekt�re sahip skanner. | |
JPS5651045A (en) | Detector for part between data of record player | |
JPS57181436A (en) | Optical disc device | |
US4754288A (en) | Pen carousel, pen sensing and indexing | |
JPS56117326A (en) | Rotary head type magnetic recording and reproducing device | |
FR2352367A1 (fr) | Appareil de detection optique de signaux d'information sur un support de signaux | |
JPS57150101A (en) | Detecting method for eccentricity of record disc | |
JPS54102150A (en) | Position detecting device | |
JPS57203905A (en) | Optical position detector | |
JPS57172550A (en) | Optical disk | |
ATE187558T1 (de) | Vorrichtung zur optischen messung der drehgeschwindigkeit eines objekts | |
DE60031058D1 (de) | Gerät zum Messen der Exzentrizität einer Scheibe | |
DE68914097D1 (de) | Gerät zum Nachweisen eines koherenten optischen Signals. | |
JPS57130201A (en) | Detecting method for eccentricity of record | |
JPS5764101A (en) | Detection of key way | |
JPS52108801A (en) | Size detector for records | |
JPS6448230A (en) | Optical disk drive device | |
JPS6411752A (en) | Machining size control device | |
JPS57181464A (en) | Intermusic detector for record player | |
JPS54130004A (en) | Cylinder position detecting method of magnetic disc apparatus | |
JPS57203255A (en) | Intermusic detector of record player | |
JPS5648504A (en) | Length measuring device | |
JPS57130273A (en) | Automatic positioning method for record | |
JPS6459685A (en) | Disk for measuring jitter | |
JPS5344A (en) | Information position detecting method |