JPS55142466A - Stop position set unit for tone arm - Google Patents
Stop position set unit for tone armInfo
- Publication number
- JPS55142466A JPS55142466A JP5119079A JP5119079A JPS55142466A JP S55142466 A JPS55142466 A JP S55142466A JP 5119079 A JP5119079 A JP 5119079A JP 5119079 A JP5119079 A JP 5119079A JP S55142466 A JPS55142466 A JP S55142466A
- Authority
- JP
- Japan
- Prior art keywords
- response
- generating
- output
- tone arm
- reference 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.)
- Pending
Links
Abstract
PURPOSE: To obtain the unit with high reliability and simple construction, by generating the output in response to the difference between the position signal and reference signal after comparison, and correcting the amount of light of light emitting element in response to the output.
CONSTITUTION: The unit provides the first position detection means 10 generating the shift position of the tone arm 1 by means of the light emitting element 11 and photo detectors 13a, 13b, second position detection means detecting the specified position of the tone arm 1, reference signal generating means 18, 24 generating the reference signal in response to the specified position, comparison means 14, 17, 22 generating the output in response to the difference between the position signal and reference signal at the output generation of the second position detection means 23 after comparison, amount of light correction means 22 correcting the amount of light of the light emitting element 11 in response to the output of comparison means.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5119079A JPS55142466A (en) | 1979-04-24 | 1979-04-24 | Stop position set unit for tone arm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5119079A JPS55142466A (en) | 1979-04-24 | 1979-04-24 | Stop position set unit for tone arm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55142466A true JPS55142466A (en) | 1980-11-07 |
Family
ID=12879941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5119079A Pending JPS55142466A (en) | 1979-04-24 | 1979-04-24 | Stop position set unit for tone arm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55142466A (en) |
-
1979
- 1979-04-24 JP JP5119079A patent/JPS55142466A/en active Pending
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