JPH0416250Y2 - - Google Patents
Info
- Publication number
- JPH0416250Y2 JPH0416250Y2 JP1984083365U JP8336584U JPH0416250Y2 JP H0416250 Y2 JPH0416250 Y2 JP H0416250Y2 JP 1984083365 U JP1984083365 U JP 1984083365U JP 8336584 U JP8336584 U JP 8336584U JP H0416250 Y2 JPH0416250 Y2 JP H0416250Y2
- Authority
- JP
- Japan
- Prior art keywords
- turned
- switch section
- state
- focus
- switch
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 12
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8336584U JPS60194717U (ja) | 1984-06-05 | 1984-06-05 | 光学式デイスクプレ−ヤ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8336584U JPS60194717U (ja) | 1984-06-05 | 1984-06-05 | 光学式デイスクプレ−ヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60194717U JPS60194717U (ja) | 1985-12-25 |
JPH0416250Y2 true JPH0416250Y2 (fr) | 1992-04-13 |
Family
ID=30631929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8336584U Granted JPS60194717U (ja) | 1984-06-05 | 1984-06-05 | 光学式デイスクプレ−ヤ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60194717U (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0722741Y2 (ja) * | 1989-11-15 | 1995-05-24 | シャープ株式会社 | オーディオ装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5917044B2 (ja) * | 1981-06-01 | 1984-04-19 | 興亜石油株式会社 | 晶質化物質の製造方法および装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5917044U (ja) * | 1982-07-23 | 1984-02-01 | 三洋電機株式会社 | デイスク保護回路 |
-
1984
- 1984-06-05 JP JP8336584U patent/JPS60194717U/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5917044B2 (ja) * | 1981-06-01 | 1984-04-19 | 興亜石油株式会社 | 晶質化物質の製造方法および装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS60194717U (ja) | 1985-12-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0088441B1 (fr) | Système d'asservissement de focalisation verticale pour un lecteur de disque optique | |
US6445670B1 (en) | Laser power control device, optical head and optical recording and/or reproducing apparatus | |
US4918681A (en) | Data reproducing apparatus using idling current | |
JPH0416250Y2 (fr) | ||
JPH0526253B2 (fr) | ||
KR960013487B1 (ko) | 데이타 재생장치 | |
JP4114274B2 (ja) | データ又は情報の再生又は記録のための装置 | |
JP2731237B2 (ja) | 光学式情報記録再生装置 | |
US4718054A (en) | Servo error write blanking circuit for an optical recording disk | |
US4569039A (en) | Optical information output device | |
JPH0731815B2 (ja) | 光学的に読取り可能な記録媒体上に光ビームを投射する装置 | |
JPH0353697B2 (fr) | ||
JPH0444808B2 (fr) | ||
JPH01113923A (ja) | データ再生装置 | |
JPS6334103Y2 (fr) | ||
JPS6089836A (ja) | デイスクレコ−ド再生装置のトラツキング制御回路 | |
CN1114771A (zh) | 光学拾取装置操作机构的聚焦伺服电路 | |
JPH01100744A (ja) | 半導体レーザ素子の駆動制御方法 | |
JPH0510247Y2 (fr) | ||
KR930007025B1 (ko) | 광학적 정보기록 재생장치의 포커스 인입장치 | |
JPH03165324A (ja) | フォーカスサーボ装置 | |
KR870000697Y1 (ko) | 광 재생 장치의 포커스 서보회로 | |
KR880001812Y1 (ko) | 광학식 픽업의 촛점 제어회로 | |
JPH0379768B2 (fr) | ||
JP3406697B2 (ja) | 光学的情報記録再生装置 |