JPS6127835B2 - - Google Patents

Info

Publication number
JPS6127835B2
JPS6127835B2 JP16180579A JP16180579A JPS6127835B2 JP S6127835 B2 JPS6127835 B2 JP S6127835B2 JP 16180579 A JP16180579 A JP 16180579A JP 16180579 A JP16180579 A JP 16180579A JP S6127835 B2 JPS6127835 B2 JP S6127835B2
Authority
JP
Japan
Prior art keywords
record
turntable
sensor
output
phototransistor
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
JP16180579A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5683872A (en
Inventor
Takeshi Mayumi
Yutaka Okamura
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP16180579A priority Critical patent/JPS5683872A/ja
Publication of JPS5683872A publication Critical patent/JPS5683872A/ja
Publication of JPS6127835B2 publication Critical patent/JPS6127835B2/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

Landscapes

  • Feeding And Guiding Record Carriers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
JP16180579A 1979-12-12 1979-12-12 Record detecting device of player Granted JPS5683872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16180579A JPS5683872A (en) 1979-12-12 1979-12-12 Record detecting device of player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16180579A JPS5683872A (en) 1979-12-12 1979-12-12 Record detecting device of player

Publications (2)

Publication Number Publication Date
JPS5683872A JPS5683872A (en) 1981-07-08
JPS6127835B2 true JPS6127835B2 (enExample) 1986-06-27

Family

ID=15742241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16180579A Granted JPS5683872A (en) 1979-12-12 1979-12-12 Record detecting device of player

Country Status (1)

Country Link
JP (1) JPS5683872A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200366U (enExample) * 1985-06-04 1986-12-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200366U (enExample) * 1985-06-04 1986-12-15

Also Published As

Publication number Publication date
JPS5683872A (en) 1981-07-08

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