JPS60123725U - Semiconductor laser control device in optical recording and playback equipment - Google Patents
Semiconductor laser control device in optical recording and playback equipmentInfo
- Publication number
- JPS60123725U JPS60123725U JP978884U JP978884U JPS60123725U JP S60123725 U JPS60123725 U JP S60123725U JP 978884 U JP978884 U JP 978884U JP 978884 U JP978884 U JP 978884U JP S60123725 U JPS60123725 U JP S60123725U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor laser
- control device
- optical recording
- information
- laser control
- 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
- Optical Head (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案による光学的録音再生装置に於ける半導体
レーザー制御装置のブロック図である。
−゛１・・・操作キー群（情報を読み取為必要のある操
作モード設定手段）、２・・・停止操作キー（情報を、
読み取る必要のない操作モード設定手段）、４・・・遅
延パルス発生回路、゛７・・・半導体レーザー、８・・
・レーザー一動回路。The drawing is a block diagram of a semiconductor laser control device in an optical recording/playback device according to the present invention. −゛1... Operation key group (operation mode setting means necessary to read information), 2... Stop operation key (to read information,
(operation mode setting means that does not require reading), 4... Delayed pulse generation circuit, ゛7... Semiconductor laser, 8...
・Laser single movement circuit.
Claims (1)
ーザーで読み取るようにした光学的録音再生装置に於け
る半導体レーザー制御装置に於いて、前記情報記録媒体
から前記半導体レーザーにて情報を読み取る必要のない
操作モード設定手段と、該操作ｙ−ド設定手段が実行さ
れた後、所定期間内に前記情叩記録媒体かう前記半導体
レーザーにて情報を読み取，る必要のある操作モード設
定手段が実行されないと自動的に半導体レーザーの電源
を切る手段とを設けたこと特徴とする光学的録音再生装
置に於ける半導体レーザーの制御装置。In a semiconductor laser control device in an optical recording/playback device that uses a semiconductor laser to read an information recording medium on which information such as an audio signal is recorded, the semiconductor laser reads information from the information recording medium. An unnecessary operation mode setting means, and an operation mode setting means that requires the semiconductor laser to read information from the emotional recording medium within a predetermined period after the operation mode setting means is executed. 1. A control device for a semiconductor laser in an optical recording/reproducing device, characterized in that the device is provided with means for automatically turning off the power to the semiconductor laser if the operation is not performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP978884U JPS60123725U (en) | 1984-01-26 | 1984-01-26 | Semiconductor laser control device in optical recording and playback equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP978884U JPS60123725U (en) | 1984-01-26 | 1984-01-26 | Semiconductor laser control device in optical recording and playback equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60123725U true JPS60123725U (en) | 1985-08-21 |
Family
ID=30490339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP978884U Pending JPS60123725U (en) | 1984-01-26 | 1984-01-26 | Semiconductor laser control device in optical recording and playback equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60123725U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5279651A (en) * | 1975-12-25 | 1977-07-04 | Noguchi Kiden Kk | Time limiter |
| JPS5789118A (en) * | 1980-11-21 | 1982-06-03 | Fujitsu Ltd | Control system of power supply |
| JPS58133644A (en) * | 1982-02-03 | 1983-08-09 | Pioneer Electronic Corp | Optical disc player |
| JPS5940376A (en) * | 1982-08-31 | 1984-03-06 | Toshiba Corp | Disk record reproducer |
-
1984
- 1984-01-26 JP JP978884U patent/JPS60123725U/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5279651A (en) * | 1975-12-25 | 1977-07-04 | Noguchi Kiden Kk | Time limiter |
| JPS5789118A (en) * | 1980-11-21 | 1982-06-03 | Fujitsu Ltd | Control system of power supply |
| JPS58133644A (en) * | 1982-02-03 | 1983-08-09 | Pioneer Electronic Corp | Optical disc player |
| JPS5940376A (en) * | 1982-08-31 | 1984-03-06 | Toshiba Corp | Disk record reproducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5848073U (en) | disc playback device | |
| JPS60123725U (en) | Semiconductor laser control device in optical recording and playback equipment | |
| JPS6145723U (en) | Laser disk playback device | |
| JPS58140592U (en) | automatic editing device | |
| JPS6362961U (en) | ||
| JPS61167055U (en) | ||
| JPS6098106U (en) | magnetic recording and playback device | |
| JPS6098191U (en) | Recording disc playback device | |
| JPS59149296U (en) | data recorder | |
| JPS60127626U (en) | tape dubbing system | |
| JPS60123706U (en) | data recorder | |
| JPS61382U (en) | automatic editing device | |
| JPS59177029U (en) | Digital audio disc playback device | |
| JPS58192696U (en) | automatic performance device | |
| JPS60102764U (en) | magnetic recording and reproducing device | |
| JPS61118192U (en) | ||
| JPS58148793U (en) | Magnetic recording and playback device control circuit | |
| JPS6040028U (en) | Information recording and reproducing device | |
| JPS5971411U (en) | Storage medium defect detection circuit | |
| JPS60158377U (en) | dropout compensator | |
| JPS6124827U (en) | Recording/playback device | |
| JPS5881736U (en) | Tape recorder control circuit | |
| JPS5849313U (en) | recorder | |
| JPH02110087U (en) | ||
| JPS60112848U (en) | Interface circuit for cassette tape recorder |