JPS6327779B2 - - Google Patents
Info
- Publication number
- JPS6327779B2 JPS6327779B2 JP6863681A JP6863681A JPS6327779B2 JP S6327779 B2 JPS6327779 B2 JP S6327779B2 JP 6863681 A JP6863681 A JP 6863681A JP 6863681 A JP6863681 A JP 6863681A JP S6327779 B2 JPS6327779 B2 JP S6327779B2
- Authority
- JP
- Japan
- Prior art keywords
- dropout
- pulse
- detected
- information recording
- obtains
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 9
- 238000003908 quality control method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6863681A JPS57183645A (en) | 1981-05-07 | 1981-05-07 | Dropout counter of discoid information recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6863681A JPS57183645A (en) | 1981-05-07 | 1981-05-07 | Dropout counter of discoid information recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57183645A JPS57183645A (en) | 1982-11-12 |
JPS6327779B2 true JPS6327779B2 (enrdf_load_stackoverflow) | 1988-06-06 |
Family
ID=13379414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6863681A Granted JPS57183645A (en) | 1981-05-07 | 1981-05-07 | Dropout counter of discoid information recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57183645A (enrdf_load_stackoverflow) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59107729U (ja) * | 1982-12-02 | 1984-07-20 | 株式会社東芝 | デイスク欠陥修正装置 |
DE3341628A1 (de) * | 1983-11-17 | 1985-05-30 | Polygram Gmbh, 2000 Hamburg | Geraeteanordnung zur fehlerermittlung bei plattenfoermigen informationstraegern |
-
1981
- 1981-05-07 JP JP6863681A patent/JPS57183645A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57183645A (en) | 1982-11-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3686682A (en) | Method and apparatus for testing magnetic disc files | |
EP0168155B1 (en) | Method for testing components of a magnetic storage system | |
US4829249A (en) | Method of inspecting magnetic disks for surface defects | |
JPS6412029B2 (enrdf_load_stackoverflow) | ||
JPS6327779B2 (enrdf_load_stackoverflow) | ||
CA1279927C (en) | Information recording and reproducing apparatus | |
KR100282089B1 (ko) | 광학정보 매체의 에러 형태를 신호로 알리는 방법 및 장치 | |
JP2580634B2 (ja) | アライメントディスク | |
JP2717818B2 (ja) | 光学ディスク駆動装置 | |
JPS62212546A (ja) | デイスク計測装置 | |
JP2723913B2 (ja) | 光ディスクの欠陥検査装置 | |
JP2531293B2 (ja) | 円盤状情報記録媒体の欠陥検査装置 | |
JP2521790B2 (ja) | ビデオディスク検査装置 | |
US5966279A (en) | Rotary magnetic head inspection method | |
JP3494912B2 (ja) | 周波数誤差検出装置 | |
JPS6253118B2 (enrdf_load_stackoverflow) | ||
JP2552106B2 (ja) | デイスク型記録媒体検査装置 | |
JPH0916963A (ja) | 信号検査装置 | |
JPS6259385B2 (enrdf_load_stackoverflow) | ||
GB2239976A (en) | Method of inspecting pancake tape | |
JPS59144013A (ja) | マルチトラツク記録装置のエラ−測定装置 | |
JPS63229670A (ja) | デイスクサ−ボ方式 | |
JPS6157392U (enrdf_load_stackoverflow) | ||
JPS61187165A (ja) | ドロツプアウト検査装置 | |
JPH02240870A (ja) | クロックピット検出方法及びその実施に用いる回路 |