IT999742B - DEVICE FOR READING A RECORDING MEDIA IN THE FORM OF DISC - Google Patents
DEVICE FOR READING A RECORDING MEDIA IN THE FORM OF DISCInfo
- Publication number
- IT999742B IT999742B IT70274/73A IT7027473A IT999742B IT 999742 B IT999742 B IT 999742B IT 70274/73 A IT70274/73 A IT 70274/73A IT 7027473 A IT7027473 A IT 7027473A IT 999742 B IT999742 B IT 999742B
- Authority
- IT
- Italy
- Prior art keywords
- disc
- reading
- recording media
- recording
- media
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/7605—Television signal recording on discs or drums
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0953—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7215306A NL7215306A (en) | 1972-11-11 | 1972-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT999742B true IT999742B (en) | 1976-03-10 |
Family
ID=19817346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT70274/73A IT999742B (en) | 1972-11-11 | 1973-11-08 | DEVICE FOR READING A RECORDING MEDIA IN THE FORM OF DISC |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPS5531527B2 (en) |
AT (1) | AT330258B (en) |
BE (1) | BE807159A (en) |
BR (1) | BR7308761D0 (en) |
CA (1) | CA1005908A (en) |
CH (1) | CH588123A5 (en) |
DE (1) | DE2353673C2 (en) |
DK (1) | DK134875B (en) |
ES (1) | ES420411A1 (en) |
FR (1) | FR2327607A1 (en) |
GB (1) | GB1452330A (en) |
IT (1) | IT999742B (en) |
NL (1) | NL7215306A (en) |
NO (1) | NO141137C (en) |
SE (1) | SE395558B (en) |
ZA (1) | ZA738175B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1577132A (en) * | 1976-03-19 | 1980-10-22 | Rca Corp | Compensation apparatus for a servo system with periodic command signals |
JPS52120805A (en) * | 1976-04-02 | 1977-10-11 | Sony Corp | Servo apparatus |
CA1198766A (en) * | 1981-04-20 | 1985-12-31 | Atsuo Tanaka | Magnetic rolls and a method of making the same |
JPS5940241U (en) * | 1982-09-04 | 1984-03-14 | 大豊工業株式会社 | Axis of rotation |
DE8322639U1 (en) * | 1983-08-05 | 1983-12-01 | Uranit GmbH, 5170 Jülich | Guide rollers for paper, foil finishing and printing machines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3381086A (en) * | 1962-08-16 | 1968-04-30 | Minnesota Mining & Mfg | Reproduction of television signals from photographic disc recordings |
US3673412A (en) * | 1970-03-02 | 1972-06-27 | Trw Inc | Radiant energy beam scanning method and apparatus |
US3711641A (en) * | 1971-03-22 | 1973-01-16 | Rca Corp | Velocity adjusting system |
-
1972
- 1972-11-11 NL NL7215306A patent/NL7215306A/xx not_active Application Discontinuation
-
1973
- 1973-10-22 ZA ZA00738175A patent/ZA738175B/en unknown
- 1973-10-26 DE DE2353673A patent/DE2353673C2/en not_active Expired
- 1973-11-08 GB GB5185073A patent/GB1452330A/en not_active Expired
- 1973-11-08 DK DK604973AA patent/DK134875B/en unknown
- 1973-11-08 CH CH1571273A patent/CH588123A5/xx not_active IP Right Cessation
- 1973-11-08 IT IT70274/73A patent/IT999742B/en active
- 1973-11-08 AT AT939773A patent/AT330258B/en not_active IP Right Cessation
- 1973-11-08 SE SE7315152A patent/SE395558B/en unknown
- 1973-11-08 BR BR8761/73A patent/BR7308761D0/en unknown
- 1973-11-08 CA CA185,306A patent/CA1005908A/en not_active Expired
- 1973-11-08 NO NO4306/73A patent/NO141137C/en unknown
- 1973-11-09 JP JP12555373A patent/JPS5531527B2/ja not_active Expired
- 1973-11-09 FR FR7339854A patent/FR2327607A1/en active Granted
- 1973-11-09 ES ES420411A patent/ES420411A1/en not_active Expired
- 1973-11-09 BE BE137614A patent/BE807159A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE807159A (en) | 1974-05-09 |
DE2353673A1 (en) | 1974-05-16 |
ATA939773A (en) | 1975-09-15 |
DE2353673C2 (en) | 1982-05-27 |
JPS50707A (en) | 1975-01-07 |
NL7215306A (en) | 1974-05-14 |
NO141137B (en) | 1979-10-08 |
FR2327607A1 (en) | 1977-05-06 |
AT330258B (en) | 1976-06-25 |
CH588123A5 (en) | 1977-05-31 |
AU6231873A (en) | 1975-05-15 |
ZA738175B (en) | 1975-05-28 |
DK134875B (en) | 1977-01-31 |
NO141137C (en) | 1980-01-16 |
BR7308761D0 (en) | 1974-09-05 |
FR2327607B1 (en) | 1978-04-21 |
JPS5531527B2 (en) | 1980-08-19 |
DK134875C (en) | 1977-06-20 |
ES420411A1 (en) | 1976-04-16 |
CA1005908A (en) | 1977-02-22 |
SE395558B (en) | 1977-08-15 |
GB1452330A (en) | 1976-10-13 |
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