JPS57127962A - Drive device for pickup arm - Google Patents

Drive device for pickup arm

Info

Publication number
JPS57127962A
JPS57127962A JP1229981A JP1229981A JPS57127962A JP S57127962 A JPS57127962 A JP S57127962A JP 1229981 A JP1229981 A JP 1229981A JP 1229981 A JP1229981 A JP 1229981A JP S57127962 A JPS57127962 A JP S57127962A
Authority
JP
Japan
Prior art keywords
pickup arm
inter
detector
precedence over
takes precedence
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
JP1229981A
Other languages
Japanese (ja)
Inventor
Junichi Yoshio
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 JP1229981A priority Critical patent/JPS57127962A/en
Priority to US06/339,817 priority patent/US4471476A/en
Priority to DE19823201150 priority patent/DE3201150A1/en
Priority to GB8201258A priority patent/GB2093626B/en
Publication of JPS57127962A publication Critical patent/JPS57127962A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To fall down a stylus on inter-recordings of a record disc, by providing two inter-recording detecting means so that one takes precedence over another on its moving and starting the drive control of a pickup arm in response to a detection signal.
CONSTITUTION: The first and second inter-recording sensors 1, 2 provided at the tip of a pickup cartridge 3 take a light source 5 located in a vertical plane including a stylus tip 4 as common light source. A photo detector 6a of the sensor 1 takes precedence over a photo detector 6b of the sensor 2 at the rotation of the pickup arm toward lead-in, reflected light from a record disc 21 is received and an output according to the amount of light is generated. On the other hand, the detector 6b takes precedence over the detector 6a at the rotation of pickup arm toward the return, and an output according to the amount of reflected light from the disc 21 is generated. An output at an inter-recording 21a of the detectors 6a, 6b is applied to an operation processing circuit 7 and a signal generating circuit 8, to control the drive of pickup arm.
COPYRIGHT: (C)1982,JPO&Japio
JP1229981A 1981-01-17 1981-01-30 Drive device for pickup arm Pending JPS57127962A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1229981A JPS57127962A (en) 1981-01-30 1981-01-30 Drive device for pickup arm
US06/339,817 US4471476A (en) 1981-01-17 1982-01-15 Pickup arm drive device
DE19823201150 DE3201150A1 (en) 1981-01-17 1982-01-15 DRIVE DEVICE FOR THE TONE ARM OF A TURNTABLE
GB8201258A GB2093626B (en) 1981-01-17 1982-01-18 Pick-up arm drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1229981A JPS57127962A (en) 1981-01-30 1981-01-30 Drive device for pickup arm

Publications (1)

Publication Number Publication Date
JPS57127962A true JPS57127962A (en) 1982-08-09

Family

ID=11801441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1229981A Pending JPS57127962A (en) 1981-01-17 1981-01-30 Drive device for pickup arm

Country Status (1)

Country Link
JP (1) JPS57127962A (en)

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