JPS58163030U - information reproducing device - Google Patents
information reproducing deviceInfo
- Publication number
- JPS58163030U JPS58163030U JP5996982U JP5996982U JPS58163030U JP S58163030 U JPS58163030 U JP S58163030U JP 5996982 U JP5996982 U JP 5996982U JP 5996982 U JP5996982 U JP 5996982U JP S58163030 U JPS58163030 U JP S58163030U
- Authority
- JP
- Japan
- Prior art keywords
- reproducing device
- information reproducing
- recording medium
- radiation source
- information
- 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
第１図は本考案のブロック図、第２図は第１図の要部を
説明する図、第３図は第２図の各部波形図を示す。
１・・・・・・記録媒体、２・・・・・・ピックアップ
、３，５・・・・・・放射線源、４・・・・・・光検出
器、７・・・・・・レーザ電源制御回路。FIG. 1 is a block diagram of the present invention, FIG. 2 is a diagram explaining the main parts of FIG. 1, and FIG. 3 is a waveform diagram of each part of FIG. 2. 1...Recording medium, 2...Pickup, 3, 5...Radiation source, 4...Photodetector, 7...Laser Power control circuit.
Claims (3)
た情報媒体より情報を読取り、再生する情報再生装置に
於いて、記録媒体の有・無を光学的手段により検出し、
前記放射線源をオン・オフ１０御するよう構成したこと
を特徴とする情報再生装置。(1) In an information reproducing device that uses radiation such as a laser beam to read and reproduce information from a PCM recorded information medium, the presence or absence of a recording medium is detected by optical means,
An information reproducing device characterized in that the radiation source is configured to be controlled on and off.
前記放射線源以外の第２の放射線源の記録媒体からの反
射光を光検出器により検出するよう構成したことを特徴
とする実用新案登録請求の範囲第１項記載の情報再生装
置。(2) The information reproducing device is characterized in that the presence or absence of a recording medium is determined by detecting the reflected light from the recording medium of a second radiation source other than the radiation source using a photodetector. An information reproducing device according to claim 1 of the utility model registration claim.
前記放射線源からの光検出器への入射光により、検出す
るよう構成したことを特徴とする実用新案登録請求の範
囲第１項記載の情報再生装置。(3) The information reproducing device is configured to detect the presence or absence of a recording medium based on light incident on a photodetector from the radiation source. The information reproducing device described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5996982U JPS58163030U (en) | 1982-04-23 | 1982-04-23 | information reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5996982U JPS58163030U (en) | 1982-04-23 | 1982-04-23 | information reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58163030U true JPS58163030U (en) | 1983-10-29 |
Family
ID=30070237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5996982U Pending JPS58163030U (en) | 1982-04-23 | 1982-04-23 | information reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163030U (en) |
-
1982
- 1982-04-23 JP JP5996982U patent/JPS58163030U/en active Pending
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