JPH03121511U - - Google Patents
Info
- Publication number
- JPH03121511U JPH03121511U JP2806990U JP2806990U JPH03121511U JP H03121511 U JPH03121511 U JP H03121511U JP 2806990 U JP2806990 U JP 2806990U JP 2806990 U JP2806990 U JP 2806990U JP H03121511 U JPH03121511 U JP H03121511U
- Authority
- JP
- Japan
- Prior art keywords
- disc
- recording medium
- shaped recording
- track
- continuous spiral
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2806990U JPH03121511U (hu) | 1990-03-19 | 1990-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2806990U JPH03121511U (hu) | 1990-03-19 | 1990-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03121511U true JPH03121511U (hu) | 1991-12-12 |
Family
ID=31530893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2806990U Pending JPH03121511U (hu) | 1990-03-19 | 1990-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03121511U (hu) |
-
1990
- 1990-03-19 JP JP2806990U patent/JPH03121511U/ja active Pending