JPH0213373B2 - - Google Patents
Info
- Publication number
- JPH0213373B2 JPH0213373B2 JP57128396A JP12839682A JPH0213373B2 JP H0213373 B2 JPH0213373 B2 JP H0213373B2 JP 57128396 A JP57128396 A JP 57128396A JP 12839682 A JP12839682 A JP 12839682A JP H0213373 B2 JPH0213373 B2 JP H0213373B2
- Authority
- JP
- Japan
- Prior art keywords
- index mark
- optical disk
- signal
- output
- index
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12839682A JPS5919242A (ja) | 1982-07-22 | 1982-07-22 | 光デイスクインデツクスマ−ク検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12839682A JPS5919242A (ja) | 1982-07-22 | 1982-07-22 | 光デイスクインデツクスマ−ク検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5919242A JPS5919242A (ja) | 1984-01-31 |
| JPH0213373B2 true JPH0213373B2 (enrdf_load_html_response) | 1990-04-04 |
Family
ID=14983765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12839682A Granted JPS5919242A (ja) | 1982-07-22 | 1982-07-22 | 光デイスクインデツクスマ−ク検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919242A (enrdf_load_html_response) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61107539A (ja) * | 1984-10-31 | 1986-05-26 | Hitachi Ltd | 光学デイスク装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54138606U (enrdf_load_html_response) * | 1978-03-20 | 1979-09-26 |
-
1982
- 1982-07-22 JP JP12839682A patent/JPS5919242A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5919242A (ja) | 1984-01-31 |