JPS57203255A - Intermusic detector of record player - Google Patents

Intermusic detector of record player

Info

Publication number
JPS57203255A
JPS57203255A JP8783381A JP8783381A JPS57203255A JP S57203255 A JPS57203255 A JP S57203255A JP 8783381 A JP8783381 A JP 8783381A JP 8783381 A JP8783381 A JP 8783381A JP S57203255 A JPS57203255 A JP S57203255A
Authority
JP
Japan
Prior art keywords
intermusic
reflected light
elements
single photodetector
photodetector
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
JP8783381A
Other languages
Japanese (ja)
Inventor
Takashi Kikuchi
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP8783381A priority Critical patent/JPS57203255A/en
Publication of JPS57203255A publication Critical patent/JPS57203255A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/095—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record
    • G11B3/0952—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record using automatic means
    • G11B3/0957—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record using automatic means using optical means for detecting the end of the recording or the desired point thereof

Abstract

PURPOSE:To reduce the number of components and to suppress the cost increase, by receiving a reflected light from a record disc based on irradiated lights of a plurality of light emitting elements with a single photodetector and detecting the inter-recording based on a plurality of information signals. CONSTITUTION:An inter-recording sensor 1 provided at the tip of a pickup cartridge consists of a single photodetector 4 located in a plane of a cartridge 2 including stylus tip 3 and, e.g., two light emitting elements 5a and 5b arranged along the turning direction of a pickup arm, and each reflected light from a record disc 6 surface based on the irradiated lights of the elements 5a and 5b is made incident to the single photodetector 4. Based on the two information signals corresponding to the reflected light of the irradiated lights of the elements 5a and 5b detected at the photodetector 4, the intermusic center can be detected or the intermusic servo of the pickup arm can be made.
JP8783381A 1981-06-08 1981-06-08 Intermusic detector of record player Pending JPS57203255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8783381A JPS57203255A (en) 1981-06-08 1981-06-08 Intermusic detector of record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8783381A JPS57203255A (en) 1981-06-08 1981-06-08 Intermusic detector of record player

Publications (1)

Publication Number Publication Date
JPS57203255A true JPS57203255A (en) 1982-12-13

Family

ID=13925931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8783381A Pending JPS57203255A (en) 1981-06-08 1981-06-08 Intermusic detector of record player

Country Status (1)

Country Link
JP (1) JPS57203255A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517825A (en) * 1978-07-20 1980-02-07 Pioneer Electronic Corp Music-interval detector for record player

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517825A (en) * 1978-07-20 1980-02-07 Pioneer Electronic Corp Music-interval detector for record player

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