JPS6460825A - Optical information processor - Google Patents

Optical information processor

Info

Publication number
JPS6460825A
JPS6460825A JP21746087A JP21746087A JPS6460825A JP S6460825 A JPS6460825 A JP S6460825A JP 21746087 A JP21746087 A JP 21746087A JP 21746087 A JP21746087 A JP 21746087A JP S6460825 A JPS6460825 A JP S6460825A
Authority
JP
Japan
Prior art keywords
recording medium
optical recording
optical
light beam
scanning
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
Application number
JP21746087A
Other languages
Japanese (ja)
Inventor
Tatsuya Narahara
Masahiko Chatani
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP21746087A priority Critical patent/JPS6460825A/en
Publication of JPS6460825A publication Critical patent/JPS6460825A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To effectively use a space on an optical recording medium, by obtaining tracking error information by using an unstable optical spot converged on the outside of a recording track. CONSTITUTION:Tracking patterns PTTR1 and PTTR2 representing the position of the recording track TR are formed at a part where a scanning light beam LB3 scans the optical recording medium 1 out of the optical recording medium 1 at a timing in which the frequency of a driving signal SI changes between an upper limit value and a lower limit value. And at the time of scanning the tracking patterns PTTR1 and PTTR2 by the scanning light beam LB3, the tracking control of the scanning position of the scanning light beam LB for the optical recording medium 1 is performed based on obtained tracking error information. In such a way, it is possible to obtain an optical information processor capable of using the space on the optical recording medium 1 effectively.
JP21746087A 1987-08-31 1987-08-31 Optical information processor Pending JPS6460825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21746087A JPS6460825A (en) 1987-08-31 1987-08-31 Optical information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21746087A JPS6460825A (en) 1987-08-31 1987-08-31 Optical information processor

Publications (1)

Publication Number Publication Date
JPS6460825A true JPS6460825A (en) 1989-03-07

Family

ID=16704576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21746087A Pending JPS6460825A (en) 1987-08-31 1987-08-31 Optical information processor

Country Status (1)

Country Link
JP (1) JPS6460825A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232907A (en) * 1988-08-12 1993-08-03 Ngk Insulators, Ltd. Yttrium-barrium-copper oxide powder and process for manufacturing yttrium-barrium-copper oxide superconducting sintered body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232907A (en) * 1988-08-12 1993-08-03 Ngk Insulators, Ltd. Yttrium-barrium-copper oxide powder and process for manufacturing yttrium-barrium-copper oxide superconducting sintered body

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