JPS5260603A - Optical information recording reproduction device - Google Patents

Optical information recording reproduction device

Info

Publication number
JPS5260603A
JPS5260603A JP50137432A JP13743275A JPS5260603A JP S5260603 A JPS5260603 A JP S5260603A JP 50137432 A JP50137432 A JP 50137432A JP 13743275 A JP13743275 A JP 13743275A JP S5260603 A JPS5260603 A JP S5260603A
Authority
JP
Japan
Prior art keywords
information recording
optical information
reproduction device
recording
recording reproduction
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
JP50137432A
Other languages
Japanese (ja)
Inventor
Toshio Sato
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50137432A priority Critical patent/JPS5260603A/en
Publication of JPS5260603A publication Critical patent/JPS5260603A/en
Pending 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • 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
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces

Abstract

PURPOSE:To increase bit number and improve density of recording by recording positional information and recording information on optical recording media like a tape with scanning zero order polarized and the first order polarized laser light in normal to the transit direction.
JP50137432A 1975-11-14 1975-11-14 Optical information recording reproduction device Pending JPS5260603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50137432A JPS5260603A (en) 1975-11-14 1975-11-14 Optical information recording reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50137432A JPS5260603A (en) 1975-11-14 1975-11-14 Optical information recording reproduction device

Publications (1)

Publication Number Publication Date
JPS5260603A true JPS5260603A (en) 1977-05-19

Family

ID=15198476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50137432A Pending JPS5260603A (en) 1975-11-14 1975-11-14 Optical information recording reproduction device

Country Status (1)

Country Link
JP (1) JPS5260603A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2917911A1 (en) * 2012-11-09 2015-09-16 Oracle International Corporation Apparatus and method for providing longitudinal position marks on an optical tape

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2917911A1 (en) * 2012-11-09 2015-09-16 Oracle International Corporation Apparatus and method for providing longitudinal position marks on an optical tape
JP2016502221A (en) * 2012-11-09 2016-01-21 オラクル・インターナショナル・コーポレイション Apparatus and method for providing longitudinal position marks on an optical tape

Similar Documents

Publication Publication Date Title
JPS5363002A (en) Signal recording system and disk type medium for recording signal
IT986164B (en) EQUIPMENT FOR RECORDING AND REPRODUCTION WITH MAGNE TAPE
JPS5260603A (en) Optical information recording reproduction device
CH458445A (en) Transducer device for reading and writing data on magnetic recording discs
JPS5331105A (en) Information recording member
JPS52135613A (en) Information recording media
JPS5589928A (en) Vertical magnetic recorder and its reproduction system
ATE15166T1 (en) OPTICAL RECORDING CARRIER.
JPS5250702A (en) Optical information recording and reproduction apparatus
JPS5373138A (en) Sound cine projector
JPS5233505A (en) Magnetic tape recording reproduction device
JPS5331104A (en) Information recording member
JPS5299804A (en) Production of orginal disc for information recording medium
JPS5217717A (en) Disk recording reproduction apparatus
JPS5236011A (en) Magnetic recording and playback method
JPS5380208A (en) Magnetic recording/reproducing system
JPS5348504A (en) Optical recorder/reproducer
JPS533805A (en) Magnetic recording medium
JPS52152712A (en) Magnetic recording and reproducing apparatus
JPS527203A (en) Optical signal recording and reproducing apparatus
JPS5413316A (en) Method for recording information signals in original of grooveless information recording medium disc
JPS5274306A (en) Optical recording and reproduction apparatus
JPS5240312A (en) Magnetic recording method
JPS55139645A (en) Transfer speed converter
JPS5223308A (en) Data recording medium manufacturing process