JPS5718061A - Information recorder and reproducer using disc recording medium - Google Patents

Information recorder and reproducer using disc recording medium

Info

Publication number
JPS5718061A
JPS5718061A JP9165280A JP9165280A JPS5718061A JP S5718061 A JPS5718061 A JP S5718061A JP 9165280 A JP9165280 A JP 9165280A JP 9165280 A JP9165280 A JP 9165280A JP S5718061 A JPS5718061 A JP S5718061A
Authority
JP
Japan
Prior art keywords
disc
reproducer
recording medium
speed
disc recording
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
JP9165280A
Other languages
Japanese (ja)
Inventor
Kunio Yamamiya
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP9165280A priority Critical patent/JPS5718061A/en
Publication of JPS5718061A publication Critical patent/JPS5718061A/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/04—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw

Landscapes

  • Moving Of Heads (AREA)

Abstract

PURPOSE:To eliminate oscillation, by a straight line movement of a stage toward the radial direction of information disc, through the rotation of a sector disc formed with spiral grooves. CONSTITUTION:On a sector disc 17, a spiral groove 20 is made, and a roller 16 fitted freely rotatably to a shaft 14 implanted on a stage 13 is inserted in the groove 20. A lower projection rim 21 is incroporatedly formed to the external circumference of the disc 17, a high-speed capstan 23 driven with a high-speed driving motor 22 is in contact with the inner circumference of the rim 21 and a low-speed capstan 25 driven with a low-speed driving motor 24 is brought into contact with the external circumference. Clutches 26, 27 are inserted among the motors 22, 24 and the capstans 23, 25 so that one clutch is disconnected while the other is connected.
JP9165280A 1980-07-07 1980-07-07 Information recorder and reproducer using disc recording medium Pending JPS5718061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9165280A JPS5718061A (en) 1980-07-07 1980-07-07 Information recorder and reproducer using disc recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9165280A JPS5718061A (en) 1980-07-07 1980-07-07 Information recorder and reproducer using disc recording medium

Publications (1)

Publication Number Publication Date
JPS5718061A true JPS5718061A (en) 1982-01-29

Family

ID=14032437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9165280A Pending JPS5718061A (en) 1980-07-07 1980-07-07 Information recorder and reproducer using disc recording medium

Country Status (1)

Country Link
JP (1) JPS5718061A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7076947B2 (en) 2001-02-19 2006-07-18 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit of construction machinery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7076947B2 (en) 2001-02-19 2006-07-18 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit of construction machinery
US7272928B2 (en) 2001-02-19 2007-09-25 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit of construction machinery

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