JPS6216462B2 - - Google Patents

Info

Publication number
JPS6216462B2
JPS6216462B2 JP18528683A JP18528683A JPS6216462B2 JP S6216462 B2 JPS6216462 B2 JP S6216462B2 JP 18528683 A JP18528683 A JP 18528683A JP 18528683 A JP18528683 A JP 18528683A JP S6216462 B2 JPS6216462 B2 JP S6216462B2
Authority
JP
Japan
Prior art keywords
record
turntable
light
post
size
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.)
Expired
Application number
JP18528683A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5987661A (ja
Inventor
Seigi Doi
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 JP58185286A priority Critical patent/JPS5987661A/ja
Publication of JPS5987661A publication Critical patent/JPS5987661A/ja
Publication of JPS6216462B2 publication Critical patent/JPS6216462B2/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/124—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of diameter of disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/10—Control of operating function, e.g. switching from recording to reproducing by sensing presence or absence of record in accessible stored position or on turntable

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Optical Recording Or Reproduction (AREA)
JP58185286A 1983-10-03 1983-10-03 レコ−ド盤検出装置 Granted JPS5987661A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58185286A JPS5987661A (ja) 1983-10-03 1983-10-03 レコ−ド盤検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58185286A JPS5987661A (ja) 1983-10-03 1983-10-03 レコ−ド盤検出装置

Publications (2)

Publication Number Publication Date
JPS5987661A JPS5987661A (ja) 1984-05-21
JPS6216462B2 true JPS6216462B2 (enExample) 1987-04-13

Family

ID=16168181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58185286A Granted JPS5987661A (ja) 1983-10-03 1983-10-03 レコ−ド盤検出装置

Country Status (1)

Country Link
JP (1) JPS5987661A (enExample)

Also Published As

Publication number Publication date
JPS5987661A (ja) 1984-05-21

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