CA1156360A - Video disc apparatus for clearing foreign matter from the signal pickup stylus during playback - Google Patents
Video disc apparatus for clearing foreign matter from the signal pickup stylus during playbackInfo
- Publication number
- CA1156360A CA1156360A CA000371577A CA371577A CA1156360A CA 1156360 A CA1156360 A CA 1156360A CA 000371577 A CA000371577 A CA 000371577A CA 371577 A CA371577 A CA 371577A CA 1156360 A CA1156360 A CA 1156360A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- stylus
- pickup stylus
- recovered
- pulse sequence
- 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
- 241001422033 Thestylus Species 0.000 claims abstract description 21
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 230000015556 catabolic process Effects 0.000 claims description 14
- 238000006731 degradation reaction Methods 0.000 claims description 14
- 239000000872 buffer Substances 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 2
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 230000014616 translation Effects 0.000 claims 1
- 238000013519 translation Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 10
- 230000006870 function Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000002123 temporal effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101001006370 Actinobacillus suis Hemolysin Proteins 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
- G11B3/125—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using electric or magnetic means
- G11B3/127—Providing horizontal force, e.g. anti-skating force
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
- G11B9/07—Heads for reproducing capacitive information
- G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US128,234 | 1980-03-07 | ||
| US06/128,235 US4287587A (en) | 1980-03-07 | 1980-03-07 | Signal loss dectector for video disc |
| US06/128,234 US4330881A (en) | 1980-03-07 | 1980-03-07 | Video disc apparatus for clearing foreign matter from the signal pickup stylus during playback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1156360A true CA1156360A (en) | 1983-11-01 |
Family
ID=26826409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000371577A Expired CA1156360A (en) | 1980-03-07 | 1981-02-24 | Video disc apparatus for clearing foreign matter from the signal pickup stylus during playback |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US4330881A (enExample) |
| JP (1) | JPS56140508A (enExample) |
| AT (1) | AT372206B (enExample) |
| AU (1) | AU536374B2 (enExample) |
| CA (1) | CA1156360A (enExample) |
| DE (1) | DE3108597A1 (enExample) |
| FR (1) | FR2477817A1 (enExample) |
| GB (1) | GB2072921B (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60219679A (ja) * | 1984-04-13 | 1985-11-02 | Mitsubishi Electric Corp | 情報記録装置 |
| JP2974149B2 (ja) * | 1989-06-23 | 1999-11-08 | 株式会社日立製作所 | 光ピックアップによりデータの記録および再生の少なくとも一方を行う装置 |
| EP0517099A1 (de) * | 1991-06-07 | 1992-12-09 | Deutsche Thomson-Brandt Gmbh | Fehlerartsignalisation optischer Informationsträger |
| US5485444A (en) * | 1991-06-07 | 1996-01-16 | Deustsche Thomson-Brandt Gmbh | Signalization of types of defects of an optical information carrier |
| DE10019554A1 (de) * | 2000-04-18 | 2001-10-31 | Degussa | Abmischungen von mindestens einem Füllstoff und Organosiliciumverbindungen, Verfahren zu deren Herstellung und deren Verwendung |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1335352A (en) * | 1919-05-21 | 1920-03-30 | Thomas J Slowey | Record-cleaner |
| US2310275A (en) * | 1941-07-28 | 1943-02-09 | Edgar A Beebe | Phonographic chip remover |
| US2955825A (en) * | 1956-08-14 | 1960-10-11 | Staar Marcel Jules Helene | Movable tone arm rest |
| US3162445A (en) * | 1962-05-28 | 1964-12-22 | Lyell D Henry | Phonograph needle cleaning device |
| US3266807A (en) * | 1962-08-03 | 1966-08-16 | Vm Corp | Needle cleaning brush for record changers |
| US3609721A (en) * | 1969-03-03 | 1971-09-28 | Singer Co | Method of clearing dust from a magnetic record disc or the like |
| US3731317A (en) * | 1970-12-21 | 1973-05-01 | Rca Corp | Vibrating web transport apparatus |
| US3711641A (en) * | 1971-03-22 | 1973-01-16 | Rca Corp | Velocity adjusting system |
| US3731289A (en) * | 1972-02-11 | 1973-05-01 | Ibm | Cleaning apparatus and method in a magnetic tape unit |
| GB1427928A (en) * | 1972-04-19 | 1976-03-10 | Rca Corp | Control signal apparatus for detecting signal presence or absence |
| US3881734A (en) * | 1974-01-30 | 1975-05-06 | Rca Corp | Rotary stylus cleaner |
| US4001496A (en) * | 1974-06-06 | 1977-01-04 | Rca Corporation | Defect detection and compensation apparatus for use in an fm signal translating system |
| US3909518A (en) * | 1974-06-06 | 1975-09-30 | Rca Corp | Signal switching apparatus for compensating record defects |
| GB1536851A (en) * | 1975-03-10 | 1978-12-20 | Rca Corp | Video carrier wave defect detection and compensation |
| GB1574594A (en) * | 1975-11-21 | 1980-09-10 | Rca Corp | Pickup circuitry for a disc record player |
| JPS5369619A (en) * | 1976-12-02 | 1978-06-21 | Fujitsu Ltd | Magnetic recording apparatus |
| US4119812A (en) * | 1977-04-20 | 1978-10-10 | Rca Corporation | Signal defect detection and compensation with signal de-emphasis |
| US4166623A (en) * | 1978-01-17 | 1979-09-04 | Matsushita Electric Industries Co., Ltd. | Pickup needle cleaning device for record disc playback apparatus |
| US4173348A (en) * | 1978-04-20 | 1979-11-06 | Rca Corporation | Grooved record playback system |
-
1980
- 1980-03-07 US US06/128,234 patent/US4330881A/en not_active Expired - Lifetime
- 1980-03-07 US US06/128,235 patent/US4287587A/en not_active Expired - Lifetime
-
1981
- 1981-02-24 CA CA000371577A patent/CA1156360A/en not_active Expired
- 1981-02-27 AU AU67940/81A patent/AU536374B2/en not_active Ceased
- 1981-03-04 JP JP3191581A patent/JPS56140508A/ja active Pending
- 1981-03-04 GB GB8106805A patent/GB2072921B/en not_active Expired
- 1981-03-06 FR FR8104547A patent/FR2477817A1/fr active Granted
- 1981-03-06 AT AT0104281A patent/AT372206B/de not_active IP Right Cessation
- 1981-03-06 DE DE19813108597 patent/DE3108597A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2072921A (en) | 1981-10-07 |
| US4287587A (en) | 1981-09-01 |
| ATA104281A (de) | 1983-01-15 |
| JPS56140508A (en) | 1981-11-02 |
| FR2477817A1 (fr) | 1981-09-11 |
| AU536374B2 (en) | 1984-05-03 |
| US4330881A (en) | 1982-05-18 |
| AU6794081A (en) | 1981-09-10 |
| GB2072921B (en) | 1984-02-01 |
| DE3108597A1 (de) | 1982-02-18 |
| FR2477817B1 (enExample) | 1985-01-25 |
| AT372206B (de) | 1983-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |