IE35265B1 - Improvements in pick-up systems - Google Patents
Improvements in pick-up systemsInfo
- Publication number
- IE35265B1 IE35265B1 IE603/71A IE60371A IE35265B1 IE 35265 B1 IE35265 B1 IE 35265B1 IE 603/71 A IE603/71 A IE 603/71A IE 60371 A IE60371 A IE 60371A IE 35265 B1 IE35265 B1 IE 35265B1
- Authority
- IE
- Ireland
- Prior art keywords
- pick
- pass filter
- record
- wavelength
- differentiator
- Prior art date
Links
Classifications
-
- 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
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/445—Styli particularly adapted for sensing video discs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optical Recording Or Reproduction (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Facsimile Scanning Arrangements (AREA)
- Circuit For Audible Band Transducer (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Discharge Of Articles From Conveyors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702024539 DE2024539C (de) | 1970-05-13 | Druckempfänger zur Abtastung von Verformungen eines relativ zu ihm bewegten Aufzeichnungsträgers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE35265L IE35265L (en) | 1971-11-13 |
| IE35265B1 true IE35265B1 (en) | 1975-12-24 |
Family
ID=5771544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE603/71A IE35265B1 (en) | 1970-05-13 | 1971-05-12 | Improvements in pick-up systems |
Country Status (26)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2133130B2 (de) * | 1971-07-03 | 1973-12-06 | Ted Bildplatten Ag Aeg-Telefunkenteldec, Zug (Schweiz) | System zur gleichzeitigen Wie dergabe zweier unabhängiger Signal verlaufe |
| NL7312139A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-09-08 | 1974-03-12 | ||
| US3872241A (en) * | 1973-07-12 | 1975-03-18 | Zenith Radio Corp | Video disc pickup with capacitive tracking |
| US3897955A (en) * | 1974-10-24 | 1975-08-05 | Zenith Radio Corp | Adjustable stylus assembly |
| US9948213B2 (en) | 2011-03-10 | 2018-04-17 | Halliburton Energy Services, Inc. | Magnetostrictive power supply for bottom hole assembly with rotation-resistant housing |
-
1971
- 1971-04-26 EG EG172/71A patent/EG11450A/xx active
- 1971-05-03 CH CH648871A patent/CH538173A/de not_active IP Right Cessation
- 1971-05-05 GB GB1324071*[A patent/GB1359854A/en not_active Expired
- 1971-05-05 NO NO1682/71A patent/NO139067C/no unknown
- 1971-05-06 RO RO7166812A patent/RO82694A/ro unknown
- 1971-05-06 FI FI1264/71A patent/FI56909C/fi active
- 1971-05-06 RO RO66812D patent/RO82694B1/ro unknown
- 1971-05-10 LU LU63137D patent/LU63137A1/xx unknown
- 1971-05-10 PL PL1971148060A patent/PL84704B1/pl unknown
- 1971-05-11 US US142237A patent/US3691317A/en not_active Expired - Lifetime
- 1971-05-11 ES ES391046A patent/ES391046A1/es not_active Expired
- 1971-05-12 NL NL7106525A patent/NL7106525A/xx not_active Application Discontinuation
- 1971-05-12 TR TR17540A patent/TR17540A/xx unknown
- 1971-05-12 DK DK230371A patent/DK137410C/da active
- 1971-05-12 HU HULI220A patent/HU165216B/hu unknown
- 1971-05-12 FR FR7117217A patent/FR2091523A5/fr not_active Expired
- 1971-05-12 IL IL36841A patent/IL36841A/xx unknown
- 1971-05-12 IE IE603/71A patent/IE35265B1/xx unknown
- 1971-05-13 CA CA112897A patent/CA925799A/en not_active Expired
- 1971-05-13 ZA ZA713125A patent/ZA713125B/xx unknown
- 1971-05-13 AT AT416871A patent/AT324727B/de not_active IP Right Cessation
- 1971-05-13 SE SE7106278A patent/SE374635B/xx unknown
- 1971-05-13 BE BE767131A patent/BE767131A/xx unknown
- 1971-05-13 JP JP46032187A patent/JPS4914244B1/ja active Pending
- 1971-05-19 BR BR3033/71A patent/BR7103033D0/pt unknown
-
1976
- 1976-12-16 HK HK803/76*UA patent/HK80376A/xx unknown
-
1977
- 1977-12-30 MY MY125/77A patent/MY7700125A/xx unknown
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