JPS5611650A - Record player - Google Patents
Record playerInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1979
- 1979-07-10 JP JP8643979A patent/JPS5611650A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPWO2021229841A1 (en) * | 2020-05-11 | 2021-11-18 |
Also Published As
Publication number | Publication date |
---|---|
JPS6238763B2 (en) | 1987-08-19 |
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