JPH01165916U - - Google Patents
Info
- Publication number
- JPH01165916U JPH01165916U JP6175788U JP6175788U JPH01165916U JP H01165916 U JPH01165916 U JP H01165916U JP 6175788 U JP6175788 U JP 6175788U JP 6175788 U JP6175788 U JP 6175788U JP H01165916 U JPH01165916 U JP H01165916U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- recording
- recording light
- disk device
- light
- 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
- 230000003287 optical effect Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示すブロツク図、
第２図はその各部波形図である。
１……駆動アンプ、２……レーザピツクアツプ
、２′……レーザ出力、３……サンプル回路、４
……遅延回路、５……インバータ、６……アンド
回路、７……コンパレータ、８……制御回路、９
……スイツチ。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a waveform diagram of each part. 1...Drive amplifier, 2...Laser pickup, 2'...Laser output, 3...Sample circuit, 4
... Delay circuit, 5 ... Inverter, 6 ... AND circuit, 7 ... Comparator, 8 ... Control circuit, 9
...Switch.
Claims (1)
によつて情報を記録する光デイスク装置において
、上記記録光に対する上記光デイスクからの反射
光を検出して検出出力を得る手段と、該検出出力
のうち上記記録光が低レベルのときに得られたも
のを選択して選択出力を得る手段とを有し、該選
択出力のレベル変化に応じて書き込みを停止させ
る様にしたことを特徴とする光デイスク装置。 An optical disk device that records information by irradiating a recordable optical disk with recording light, comprising: means for detecting reflected light from the optical disk with respect to the recording light to obtain a detection output; and means for obtaining a selected output by selecting one of the recording lights obtained when the recording light is at a low level, and stopping writing according to a change in the level of the selected output. disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6175788U JPH01165916U (en) | 1988-05-11 | 1988-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6175788U JPH01165916U (en) | 1988-05-11 | 1988-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01165916U true JPH01165916U (en) | 1989-11-21 |
Family
ID=31287405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6175788U Pending JPH01165916U (en) | 1988-05-11 | 1988-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01165916U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158038A (en) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | Optical disc device |
-
1988
- 1988-05-11 JP JP6175788U patent/JPH01165916U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158038A (en) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | Optical disc device |
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