JPS6460825A - Optical information processor - Google Patents
Optical information processorInfo
- Publication number
- JPS6460825A JPS6460825A JP21746087A JP21746087A JPS6460825A JP S6460825 A JPS6460825 A JP S6460825A JP 21746087 A JP21746087 A JP 21746087A JP 21746087 A JP21746087 A JP 21746087A JP S6460825 A JPS6460825 A JP S6460825A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- optical recording
- optical
- light beam
- scanning
- 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
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To effectively use a space on an optical recording medium, by obtaining tracking error information by using an unstable optical spot converged on the outside of a recording track. CONSTITUTION:Tracking patterns PTTR1 and PTTR2 representing the position of the recording track TR are formed at a part where a scanning light beam LB3 scans the optical recording medium 1 out of the optical recording medium 1 at a timing in which the frequency of a driving signal SI changes between an upper limit value and a lower limit value. And at the time of scanning the tracking patterns PTTR1 and PTTR2 by the scanning light beam LB3, the tracking control of the scanning position of the scanning light beam LB for the optical recording medium 1 is performed based on obtained tracking error information. In such a way, it is possible to obtain an optical information processor capable of using the space on the optical recording medium 1 effectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21746087A JPS6460825A (en) | 1987-08-31 | 1987-08-31 | Optical information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21746087A JPS6460825A (en) | 1987-08-31 | 1987-08-31 | Optical information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6460825A true JPS6460825A (en) | 1989-03-07 |
Family
ID=16704576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21746087A Pending JPS6460825A (en) | 1987-08-31 | 1987-08-31 | Optical information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6460825A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232907A (en) * | 1988-08-12 | 1993-08-03 | Ngk Insulators, Ltd. | Yttrium-barrium-copper oxide powder and process for manufacturing yttrium-barrium-copper oxide superconducting sintered body |
-
1987
- 1987-08-31 JP JP21746087A patent/JPS6460825A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232907A (en) * | 1988-08-12 | 1993-08-03 | Ngk Insulators, Ltd. | Yttrium-barrium-copper oxide powder and process for manufacturing yttrium-barrium-copper oxide superconducting sintered body |
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