JPH0255408U - - Google Patents
Info
- Publication number
- JPH0255408U JPH0255408U JP13209088U JP13209088U JPH0255408U JP H0255408 U JPH0255408 U JP H0255408U JP 13209088 U JP13209088 U JP 13209088U JP 13209088 U JP13209088 U JP 13209088U JP H0255408 U JPH0255408 U JP H0255408U
- Authority
- JP
- Japan
- Prior art keywords
- information
- recording
- main beam
- checking
- comparing
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000012790 confirmation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は信号波形図を示す。
２……光ヘツド、８ａ……第１検出器、８ｂ…
…第２検出器、１１……記録信号発生回路、１３
……パルス比較回路、１４……記録制御回路。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 shows a signal waveform diagram. 2... Optical head, 8a... First detector, 8b...
... Second detector, 11 ... Recording signal generation circuit, 13
. . . Pulse comparison circuit, 14 . . . Recording control circuit.
Claims (1)
後行ビームとを用いて光デイスクに対して情報を
記録または再生する情報記録再生装置において、
上記先行ビームを用いて記録トラツクの情報信号
記録状態を確認する確認手段と、上記後行ビーム
を用いて上記主ビームにより記録された信号を直
ちに読み取る読取手段と、読み取られた信号と記
録信号とを比較する手段と、上記確認手段及び上
記比較手段の結果に基づいて記録動作を制御する
制御手段とを備えたことを特徴とする情報記録再
生装置。 In an information recording and reproducing device that records or reproduces information on an optical disk using a main beam and leading beams and trailing beams located before and after the main beam,
Confirmation means for checking the information signal recording state of the recording track using the preceding beam; reading means for immediately reading the signal recorded by the main beam using the trailing beam; 1. An information recording and reproducing apparatus comprising: means for comparing the information, and a control means for controlling a recording operation based on the results of the checking means and the comparing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988132090U JP2542077Y2 (en) | 1988-10-07 | 1988-10-07 | Information recording / reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988132090U JP2542077Y2 (en) | 1988-10-07 | 1988-10-07 | Information recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0255408U true JPH0255408U (en) | 1990-04-20 |
| JP2542077Y2 JP2542077Y2 (en) | 1997-07-23 |
Family
ID=31388739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988132090U Expired - Lifetime JP2542077Y2 (en) | 1988-10-07 | 1988-10-07 | Information recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2542077Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147944A (en) * | 1984-01-03 | 1985-08-05 | コントロール データ コーポレーシヨン | Switching laser beam unit for optical recording |
| JPS61206925A (en) * | 1985-03-08 | 1986-09-13 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing device |
-
1988
- 1988-10-07 JP JP1988132090U patent/JP2542077Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147944A (en) * | 1984-01-03 | 1985-08-05 | コントロール データ コーポレーシヨン | Switching laser beam unit for optical recording |
| JPS61206925A (en) * | 1985-03-08 | 1986-09-13 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2542077Y2 (en) | 1997-07-23 |
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