JPS5522254A - Record disk reproducing device - Google Patents
Record disk reproducing deviceInfo
- Publication number
- JPS5522254A JPS5522254A JP9433178A JP9433178A JPS5522254A JP S5522254 A JPS5522254 A JP S5522254A JP 9433178 A JP9433178 A JP 9433178A JP 9433178 A JP9433178 A JP 9433178A JP S5522254 A JPS5522254 A JP S5522254A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- needle
- disk
- resistance change
- gauge
- 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
Links
Abstract
PURPOSE: To obtain the signals of a fixed level by correcting the fluctuation of the reproduced signals caused by the drift of the pressure of the information detector needle with the resistance change of the distortion gauge.
CONSTITUTION: Distortion gauge 10 is stuck to spring 9 as spring 4 functioning as the needle pressure decision factor connected to information detector needle 3 to take out the information record and with contact to the groove of record disk 5. Otherwise spring 11 itself is formed with the distortion gauge. In this case, distance x between the disk varying the change of the groove unevenness and fulcrum of spring 4 is detected as the resistance change via gauge 10 when needle 3 slides on grooves of disk 5. Then the resistance change is amplified by amplifier 13 and through bridge circuit 12, and the unsteady reproduced signals due to the fluctuation of distance x and supplied from point (b) are controlled by amplifier 14. Thus the amplitude of the FM wave can be made constant.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9433178A JPS5522254A (en) | 1978-08-02 | 1978-08-02 | Record disk reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9433178A JPS5522254A (en) | 1978-08-02 | 1978-08-02 | Record disk reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5522254A true JPS5522254A (en) | 1980-02-16 |
Family
ID=14107293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9433178A Pending JPS5522254A (en) | 1978-08-02 | 1978-08-02 | Record disk reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5522254A (en) |
-
1978
- 1978-08-02 JP JP9433178A patent/JPS5522254A/en active Pending
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