JPS5512538A - Detection method for stylus skip - Google Patents
Detection method for stylus skipInfo
- Publication number
- JPS5512538A JPS5512538A JP8422878A JP8422878A JPS5512538A JP S5512538 A JPS5512538 A JP S5512538A JP 8422878 A JP8422878 A JP 8422878A JP 8422878 A JP8422878 A JP 8422878A JP S5512538 A JPS5512538 A JP S5512538A
- Authority
- JP
- Japan
- Prior art keywords
- skip
- stylus
- groove
- recording
- group
- 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 establish the stylus skip detection method in which continuous stylus skip can be detected with accurate detection, by providing the circuit that the stylus skip detection output can be obtained in response to the relative difference between the groove number read in just now and the groove number read in before.
CONSTITUTION: The group number Nn read out just now from the shift register 6 is stored at the latch, and the difference N with the group number Nn-1 once before stored in the memory 25 is obtained at the subtraction circuit 26. N=1 means normal tracking, N=O is the stylus skip by one groove in opposite direction as the recording, and N=2 is stylus skip by one groove the same direction as the recording. Further, when the locked group is defined that the stylus skip toward opposite to recording direction is continued twice or more, the counter 27 counts with S6, output for count, introduced from the subtraction circuit 26 at N=0, and the count reaches 2 or more, then the locked group detection signal S7 is outputted. Thus, continuous stylus skip can be detected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8422878A JPS5512538A (en) | 1978-07-10 | 1978-07-10 | Detection method for stylus skip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8422878A JPS5512538A (en) | 1978-07-10 | 1978-07-10 | Detection method for stylus skip |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5512538A true JPS5512538A (en) | 1980-01-29 |
JPS611820B2 JPS611820B2 (en) | 1986-01-20 |
Family
ID=13824609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8422878A Granted JPS5512538A (en) | 1978-07-10 | 1978-07-10 | Detection method for stylus skip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5512538A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55113172A (en) * | 1979-02-19 | 1980-09-01 | Matsushita Electric Ind Co Ltd | Detection system for abnormal reproduction state |
JPS57146279U (en) * | 1981-03-09 | 1982-09-14 | ||
JPS57197451A (en) * | 1982-05-12 | 1982-12-03 | Hitachi Ltd | Measuring device for cell fluorescent polarization degree |
-
1978
- 1978-07-10 JP JP8422878A patent/JPS5512538A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55113172A (en) * | 1979-02-19 | 1980-09-01 | Matsushita Electric Ind Co Ltd | Detection system for abnormal reproduction state |
JPS57146279U (en) * | 1981-03-09 | 1982-09-14 | ||
JPS57197451A (en) * | 1982-05-12 | 1982-12-03 | Hitachi Ltd | Measuring device for cell fluorescent polarization degree |
JPS608738B2 (en) * | 1982-05-12 | 1985-03-05 | 株式会社日立製作所 | Cell fluorescence polarization measuring device |
Also Published As
Publication number | Publication date |
---|---|
JPS611820B2 (en) | 1986-01-20 |
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