JPS56153542A - Stabilizer of laser light flux in optical recorder - Google Patents

Stabilizer of laser light flux in optical recorder

Info

Publication number
JPS56153542A
JPS56153542A JP5724780A JP5724780A JPS56153542A JP S56153542 A JPS56153542 A JP S56153542A JP 5724780 A JP5724780 A JP 5724780A JP 5724780 A JP5724780 A JP 5724780A JP S56153542 A JPS56153542 A JP S56153542A
Authority
JP
Japan
Prior art keywords
light modulator
modulator
pmod1
subtractor
variable gain
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
Application number
JP5724780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6153774B2 (enrdf_load_stackoverflow
Inventor
Kanji Kayanuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP5724780A priority Critical patent/JPS56153542A/ja
Publication of JPS56153542A publication Critical patent/JPS56153542A/ja
Publication of JPS6153774B2 publication Critical patent/JPS6153774B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP5724780A 1980-04-30 1980-04-30 Stabilizer of laser light flux in optical recorder Granted JPS56153542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5724780A JPS56153542A (en) 1980-04-30 1980-04-30 Stabilizer of laser light flux in optical recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5724780A JPS56153542A (en) 1980-04-30 1980-04-30 Stabilizer of laser light flux in optical recorder

Publications (2)

Publication Number Publication Date
JPS56153542A true JPS56153542A (en) 1981-11-27
JPS6153774B2 JPS6153774B2 (enrdf_load_stackoverflow) 1986-11-19

Family

ID=13050194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5724780A Granted JPS56153542A (en) 1980-04-30 1980-04-30 Stabilizer of laser light flux in optical recorder

Country Status (1)

Country Link
JP (1) JPS56153542A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796250A (en) * 1986-08-13 1989-01-03 Sony Corporation Optical recording and reproducing apparatus including a disc extraction area for power setting a laser
US5586099A (en) * 1995-05-22 1996-12-17 International Business Machines Corporation Optimized laser read power based upon scan speed of optical medium and erasure characteristics of the medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796250A (en) * 1986-08-13 1989-01-03 Sony Corporation Optical recording and reproducing apparatus including a disc extraction area for power setting a laser
US5586099A (en) * 1995-05-22 1996-12-17 International Business Machines Corporation Optimized laser read power based upon scan speed of optical medium and erasure characteristics of the medium

Also Published As

Publication number Publication date
JPS6153774B2 (enrdf_load_stackoverflow) 1986-11-19

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