JPS5654603A - Record player - Google Patents
Record playerInfo
- Publication number
- JPS5654603A JPS5654603A JP13028279A JP13028279A JPS5654603A JP S5654603 A JPS5654603 A JP S5654603A JP 13028279 A JP13028279 A JP 13028279A JP 13028279 A JP13028279 A JP 13028279A JP S5654603 A JPS5654603 A JP S5654603A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- frequency
- shaft
- distance
- reproduced signal
- 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
Landscapes
- Moving Of Heads (AREA)
Abstract
PURPOSE: To reduce greatly the noise contained in the reproduced signal, by increasing the antiresonance frequency higher than the audible frequency among the vibration transmitting properties of a tone arm.
CONSTITUTION: The tone arm resonance frequency (ωr) which controls the reproduction property of the tone arm is shown by the equation I, and the value by which the arm is made to follow the waves of the record is set to 10Hz or so. If the conditions can be satisfied to set the (ωr) at 10Hz or so, the inertia momemt J around the rotating shaft 8 of the arm 6, the full mass (m) of the arm 6, the distance Lc between the shaft 8 and the stylus 5 and the distance Lg between the shaft 8 and the center of gravity G of the arm can be altered freedly. In this connection, the antiresonance frequency (ωa) is set higher then the audible frequency. As a result, the noise in the reproduced signal can be eliminated substantially even though the shift base 9 may have an intermittent motion.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13028279A JPS5654603A (en) | 1979-10-09 | 1979-10-09 | Record player |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13028279A JPS5654603A (en) | 1979-10-09 | 1979-10-09 | Record player |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5654603A true JPS5654603A (en) | 1981-05-14 |
JPS6321241B2 JPS6321241B2 (en) | 1988-05-06 |
Family
ID=15030577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13028279A Granted JPS5654603A (en) | 1979-10-09 | 1979-10-09 | Record player |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654603A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5956240A (en) * | 1982-09-27 | 1984-03-31 | Canon Inc | Photomagnetic recording medium |
JPS5956241A (en) * | 1982-09-27 | 1984-03-31 | Canon Inc | Photomagnetic recording medium |
-
1979
- 1979-10-09 JP JP13028279A patent/JPS5654603A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5956240A (en) * | 1982-09-27 | 1984-03-31 | Canon Inc | Photomagnetic recording medium |
JPS5956241A (en) * | 1982-09-27 | 1984-03-31 | Canon Inc | Photomagnetic recording medium |
JPH0438056B2 (en) * | 1982-09-27 | 1992-06-23 | Canon Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6321241B2 (en) | 1988-05-06 |
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