JPS5758266A - Automatic music selecting device - Google Patents

Automatic music selecting device

Info

Publication number
JPS5758266A
JPS5758266A JP13149980A JP13149980A JPS5758266A JP S5758266 A JPS5758266 A JP S5758266A JP 13149980 A JP13149980 A JP 13149980A JP 13149980 A JP13149980 A JP 13149980A JP S5758266 A JPS5758266 A JP S5758266A
Authority
JP
Japan
Prior art keywords
intermusic
output
level
arm
sensor
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
JP13149980A
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 JP13149980A priority Critical patent/JPS5758266A/en
Priority to US06/283,855 priority patent/US4375092A/en
Publication of JPS5758266A publication Critical patent/JPS5758266A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To easily correct a shift of position between the end point of the stylus of the carridge and the intermusic sensor, by level shifting one output level when the output level of the intermusic sensor when the arm is stopped and the intermusic output level thereafter are compared.
CONSTITUTION: Since the holding voltage of a voltage holding section 5b is applied at the time of inversional input of an operational amplifier OP3 of a differential amplifier 5c and the output level of an intermusic sensor after an arm is stopped is applied through a level shift section 5d at the time of noninversional input, a differential voltage of both the inputs is generated to the output of the amplifier 5c. When an eccentricity or a warp exists in a disk, the output of the intermusic sensor changes and the signals having a size and polarity corresponding to the difference are generated to the output of the amplifier 5c. Then, an arm driving section makes fine adjustment to silghtly move the arm in the direction which corresponds to the signal, and, when the difference level becomes larger than a fixed a pulse-like signal is generated to the output and thus detections of intermusic are informed.
COPYRIGHT: (C)1982,JPO&Japio
JP13149980A 1980-07-17 1980-09-24 Automatic music selecting device Pending JPS5758266A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP13149980A JPS5758266A (en) 1980-09-24 1980-09-24 Automatic music selecting device
US06/283,855 US4375092A (en) 1980-07-17 1981-07-16 Automatic music selecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13149980A JPS5758266A (en) 1980-09-24 1980-09-24 Automatic music selecting device

Publications (1)

Publication Number Publication Date
JPS5758266A true JPS5758266A (en) 1982-04-07

Family

ID=15059432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13149980A Pending JPS5758266A (en) 1980-07-17 1980-09-24 Automatic music selecting device

Country Status (1)

Country Link
JP (1) JPS5758266A (en)

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