JPS62173046U - - Google Patents
Info
- Publication number
- JPS62173046U JPS62173046U JP6160686U JP6160686U JPS62173046U JP S62173046 U JPS62173046 U JP S62173046U JP 6160686 U JP6160686 U JP 6160686U JP 6160686 U JP6160686 U JP 6160686U JP S62173046 U JPS62173046 U JP S62173046U
- Authority
- JP
- Japan
- Prior art keywords
- scratch
- optical disk
- measuring device
- reference level
- readout signal
- 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
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6160686U JPS62173046U (en]) | 1986-04-23 | 1986-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6160686U JPS62173046U (en]) | 1986-04-23 | 1986-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62173046U true JPS62173046U (en]) | 1987-11-04 |
Family
ID=30895093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6160686U Pending JPS62173046U (en]) | 1986-04-23 | 1986-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62173046U (en]) |
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1986
- 1986-04-23 JP JP6160686U patent/JPS62173046U/ja active Pending