JPS5611650A - Record player - Google Patents

Record player

Info

Publication number
JPS5611650A
JPS5611650A JP8643979A JP8643979A JPS5611650A JP S5611650 A JPS5611650 A JP S5611650A JP 8643979 A JP8643979 A JP 8643979A JP 8643979 A JP8643979 A JP 8643979A JP S5611650 A JPS5611650 A JP S5611650A
Authority
JP
Japan
Prior art keywords
proportional type
tone arm
servo control
speed proportional
speed
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.)
Granted
Application number
JP8643979A
Other languages
Japanese (ja)
Other versions
JPS6238763B2 (en
Inventor
Shuichi Kimura
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8643979A priority Critical patent/JPS5611650A/en
Publication of JPS5611650A publication Critical patent/JPS5611650A/en
Publication of JPS6238763B2 publication Critical patent/JPS6238763B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the deterioration of reproduction characteristics due to external disturbance during playing and to correctly stop the tone arm to the objective position, by commonly using the servo control of speed proportional type and acceleration proportional type and controlling the drive motor (linear motor etc.) of the tone arm through the use of the speed proportional type servo control at nonplaying.
CONSTITUTION: The servo amplifier 14 feeds the output voltage e0 amplifying the difference voltage between the speed detection signal e1 from the detection coil 4A fed via the high-pass filter means (resistor 15 and capacitor 16) having the cut- off frequency slightly lower than the resonance frequency of the tone arm and the set signal e2 indicating the operating target value of the tone arm, to the drive coil 4B, to drive the horizontal drive motor of the tone arm. Thus, the switch 18 which is open at playing is closed at nonplaying, to achieve the transition from the common use servo control of speed proportional type and acceleration proportional type to the speed proportional type servo control over the entire frequency band.
COPYRIGHT: (C)1981,JPO&Japio
JP8643979A 1979-07-10 1979-07-10 Record player Granted JPS5611650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8643979A JPS5611650A (en) 1979-07-10 1979-07-10 Record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8643979A JPS5611650A (en) 1979-07-10 1979-07-10 Record player

Publications (2)

Publication Number Publication Date
JPS5611650A true JPS5611650A (en) 1981-02-05
JPS6238763B2 JPS6238763B2 (en) 1987-08-19

Family

ID=13886942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8643979A Granted JPS5611650A (en) 1979-07-10 1979-07-10 Record player

Country Status (1)

Country Link
JP (1) JPS5611650A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021229841A1 (en) * 2020-05-11 2021-11-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021229841A1 (en) * 2020-05-11 2021-11-18
WO2021229841A1 (en) * 2020-05-11 2021-11-18 パナソニックＩｐマネジメント株式会社 Measurement device, measurement method, program, and phonograph record

Also Published As

Publication number Publication date
JPS6238763B2 (en) 1987-08-19

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