FR2494883A1 - Systeme de stockage et de restitution d'information comportant un disque et une pointe de lecture - Google Patents
Systeme de stockage et de restitution d'information comportant un disque et une pointe de lecture Download PDFInfo
- Publication number
- FR2494883A1 FR2494883A1 FR8121006A FR8121006A FR2494883A1 FR 2494883 A1 FR2494883 A1 FR 2494883A1 FR 8121006 A FR8121006 A FR 8121006A FR 8121006 A FR8121006 A FR 8121006A FR 2494883 A1 FR2494883 A1 FR 2494883A1
- Authority
- FR
- France
- Prior art keywords
- disc
- style
- face
- electrode
- dielectric
- 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
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 3
- 239000000314 lubricant Substances 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/208,983 US4371961A (en) | 1980-11-21 | 1980-11-21 | Capacitive information system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2494883A1 true FR2494883A1 (fr) | 1982-05-28 |
| FR2494883B1 FR2494883B1 (enExample) | 1984-12-28 |
Family
ID=22776861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8121006A Granted FR2494883A1 (fr) | 1980-11-21 | 1981-11-10 | Systeme de stockage et de restitution d'information comportant un disque et une pointe de lecture |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4371961A (enExample) |
| JP (1) | JPS57113438A (enExample) |
| DE (1) | DE3145351A1 (enExample) |
| FR (1) | FR2494883A1 (enExample) |
| GB (1) | GB2089099A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489278A (en) * | 1982-06-03 | 1984-12-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Electrostatic voltage detecting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930117A (en) * | 1974-11-14 | 1975-12-30 | Rca Corp | Video capacitive disc playback apparatus and stylus with dielectric coating therefor |
| US3943276A (en) * | 1974-06-03 | 1976-03-09 | Zenith Radio Corporation | Record tracking pickup structure for a capacitive disc |
| FR2453462A1 (fr) * | 1976-11-17 | 1980-10-31 | Victor Company Of Japan | Pointe de lecture pour la reproduction de signaux enregistres sur un milieu d'enregistrement |
| US4296371A (en) * | 1980-03-17 | 1981-10-20 | Rca Corporation | System for measuring stylus shoe length |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842194A (en) * | 1971-03-22 | 1974-10-15 | Rca Corp | Information records and recording/playback systems therefor |
| US4273967A (en) * | 1976-11-17 | 1981-06-16 | Victor Company Of Japan, Limited | Stylus for reproducing capacitive videodisc |
| US4162510A (en) * | 1977-03-25 | 1979-07-24 | Rca Corporation | Keel-tipped stylus for video disc systems |
-
1980
- 1980-11-21 US US06/208,983 patent/US4371961A/en not_active Expired - Lifetime
-
1981
- 1981-11-10 FR FR8121006A patent/FR2494883A1/fr active Granted
- 1981-11-14 DE DE19813145351 patent/DE3145351A1/de not_active Withdrawn
- 1981-11-18 GB GB8134765A patent/GB2089099A/en not_active Withdrawn
- 1981-11-18 JP JP56186080A patent/JPS57113438A/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3943276A (en) * | 1974-06-03 | 1976-03-09 | Zenith Radio Corporation | Record tracking pickup structure for a capacitive disc |
| US3930117A (en) * | 1974-11-14 | 1975-12-30 | Rca Corp | Video capacitive disc playback apparatus and stylus with dielectric coating therefor |
| FR2453462A1 (fr) * | 1976-11-17 | 1980-10-31 | Victor Company Of Japan | Pointe de lecture pour la reproduction de signaux enregistres sur un milieu d'enregistrement |
| US4296371A (en) * | 1980-03-17 | 1981-10-20 | Rca Corporation | System for measuring stylus shoe length |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3145351A1 (de) | 1982-10-14 |
| US4371961A (en) | 1983-02-01 |
| GB2089099A (en) | 1982-06-16 |
| JPS57113438A (en) | 1982-07-14 |
| FR2494883B1 (enExample) | 1984-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2583561A1 (fr) | Dispositif d'enregistrement vertical a disque rigide. | |
| EP0420755A1 (fr) | Procédé de réalisation d'une tête d'enregistrement magnétique et tête obtenue par ce procédé | |
| EP0618568A2 (fr) | Tête magnetique d'enregistrement/lecture en couches minces et son procédé de réalisation | |
| US4031546A (en) | Disc player and stylus therefor | |
| FR2470414A1 (fr) | Systeme de connexion electrique et carte a memoire faisant application de ce systeme | |
| EP0188944A1 (fr) | Système pour enregistrement perpendiculaire et un procédé de fabrication d'un transducteur magnétique | |
| FR2494883A1 (fr) | Systeme de stockage et de restitution d'information comportant un disque et une pointe de lecture | |
| CA1058751A (en) | Video disc playback apparatus and stylus therefor | |
| EP0540385B1 (fr) | Procédé de lecture d'informations enregistrées et système de lecture | |
| EP0339070B1 (fr) | Tete magnetique d'enregistrement-lecture a couche anti-abrasion et procede de realisation | |
| FR2741470A1 (fr) | Procede de realisation d'une tete magnetique planaire et tete obtenue par ce procede | |
| EP0671724B1 (fr) | Tête magnétique verticale et son procédé de réalisation | |
| US4124867A (en) | Narrowed-electrode pickup stylus for video disc systems | |
| EP0310467B1 (fr) | Dispositifs de mesure comprenant un transducteur du type rhéostat | |
| FR2468181A1 (fr) | Dispositif pour explorer l'information, sur un videodisque, a une allure differente de la lecture normale, et mecanisme de pre-visualisation de l'information | |
| FR2475265A1 (fr) | Ensemble d'une aiguille de videodisque et son conducteur formant contrepoids | |
| FR2585495A1 (fr) | Dispositif d'enregistrement magnetique a tete tournante | |
| JP2856151B2 (ja) | 接触式磁気ディスク装置 | |
| EP1955374A1 (fr) | Module electronique 3d | |
| US4488281A (en) | Capacitance detection type record stylus having a conductive shank | |
| FR2479633A1 (fr) | Pointe de lecture pour disque contenant de l'information, notamment video | |
| FR2579003A1 (fr) | Element stabilisateur de la tete d'un appareil d'enregistrement ou de reproduction | |
| FR2831756A1 (fr) | Procede et dispositif de synchronisation d'un signal de reference sur un signal video | |
| FR2461325A1 (fr) | Systeme de restitution de signaux pre-enregistres sur un disque avec dispositif de detection de la position de l'aiguille | |
| FR2543346A1 (fr) | Tourne-videodisque ayant des modes de fonctionnement avec effets speciaux |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |