JPS5764333A - Optical recording and reproducing system - Google Patents

Optical recording and reproducing system

Info

Publication number
JPS5764333A
JPS5764333A JP13578780A JP13578780A JPS5764333A JP S5764333 A JPS5764333 A JP S5764333A JP 13578780 A JP13578780 A JP 13578780A JP 13578780 A JP13578780 A JP 13578780A JP S5764333 A JPS5764333 A JP S5764333A
Authority
JP
Japan
Prior art keywords
tape
circumferential surface
rotary drum
cylindrical ring
drum
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
JP13578780A
Other languages
Japanese (ja)
Inventor
Kazuo Takahashi
Shiro Nakagawa
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP13578780A priority Critical patent/JPS5764333A/en
Publication of JPS5764333A publication Critical patent/JPS5764333A/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
    • G11B7/0031—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 using a rotating head, e.g. helicoidal recording

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To utilize the recording surface of a tape effectively, by winding a tape arround the outside circumferential surface of a rotary drum having an optical pickup, so as to be diagonal against the drum shaft, and making it run, in the system for execating the optical recording and reproduction on the tape. CONSTITUTION:On the circumferential surface of a ratary drum 30, a pair of optical pickups 20a, 20b are provided so as to be symmetrical to a shaft 30a, on the outside circumference of the rotary drum 30, a cylindrical ring 31 is provided, and between the outside circumferential surface of the rotary drum 30 and the inside circumferential surface of the cylindrical ring 31, an equal space decided relating to a focal length of the optical pickups 20a, 20b is formed. A tape 15 is wound around the outside circumferential surface of the cylindrical ring 31 by a prescribed winding angle THETA decided by relation to width of the tape against the shaft 30a of the rotary drum, and running speed is controlled by a pinch roller 40 and a capstan 41. In this way, the tape 15 and the rotary drum 30 are driven in the reverse direction to each other, and the cylindrical ring 31 is rotated in the tape running direction by friction force against the tape.
JP13578780A 1980-10-01 1980-10-01 Optical recording and reproducing system Pending JPS5764333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13578780A JPS5764333A (en) 1980-10-01 1980-10-01 Optical recording and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13578780A JPS5764333A (en) 1980-10-01 1980-10-01 Optical recording and reproducing system

Publications (1)

Publication Number Publication Date
JPS5764333A true JPS5764333A (en) 1982-04-19

Family

ID=15159824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13578780A Pending JPS5764333A (en) 1980-10-01 1980-10-01 Optical recording and reproducing system

Country Status (1)

Country Link
JP (1) JPS5764333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602364A1 (en) * 1986-07-31 1988-02-05 Michel Maksymowicz Method of recording and reading information on a medium, and information medium for implementing this method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602364A1 (en) * 1986-07-31 1988-02-05 Michel Maksymowicz Method of recording and reading information on a medium, and information medium for implementing this method

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