BR7308761D0 - Apparatus for reading a record holder in the form of a disc - Google Patents
Apparatus for reading a record holder in the form of a discInfo
- Publication number
- BR7308761D0 BR7308761D0 BR8761/73A BR876173A BR7308761D0 BR 7308761 D0 BR7308761 D0 BR 7308761D0 BR 8761/73 A BR8761/73 A BR 8761/73A BR 876173 A BR876173 A BR 876173A BR 7308761 D0 BR7308761 D0 BR 7308761D0
- Authority
- BR
- Brazil
- Prior art keywords
- disc
- reading
- record holder
- record
- holder
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Facsimile Scanning Arrangements (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
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 |
---|---|
BR7308761D0 true BR7308761D0 (en) | 1974-09-05 |
Family
ID=19817346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8761/73A BR7308761D0 (en) | 1972-11-11 | 1973-11-08 | Apparatus for reading a record holder in the form of a 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 AT AT939773A patent/AT330258B/en not_active IP Right Cessation
- 1973-11-08 CA CA185,306A patent/CA1005908A/en not_active Expired
- 1973-11-08 GB GB5185073A patent/GB1452330A/en not_active Expired
- 1973-11-08 NO NO4306/73A patent/NO141137C/en unknown
- 1973-11-08 IT IT70274/73A patent/IT999742B/en active
- 1973-11-08 BR BR8761/73A patent/BR7308761D0/en unknown
- 1973-11-08 CH CH1571273A patent/CH588123A5/xx not_active IP Right Cessation
- 1973-11-08 SE SE7315152A patent/SE395558B/en unknown
- 1973-11-08 DK DK604973AA patent/DK134875B/en unknown
- 1973-11-09 BE BE137614A patent/BE807159A/en unknown
- 1973-11-09 ES ES420411A patent/ES420411A1/en not_active Expired
- 1973-11-09 JP JP12555373A patent/JPS5531527B2/ja not_active Expired
- 1973-11-09 FR FR7339854A patent/FR2327607A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
NL7215306A (en) | 1974-05-14 |
DE2353673C2 (en) | 1982-05-27 |
NO141137C (en) | 1980-01-16 |
DK134875C (en) | 1977-06-20 |
DK134875B (en) | 1977-01-31 |
ATA939773A (en) | 1975-09-15 |
CH588123A5 (en) | 1977-05-31 |
FR2327607A1 (en) | 1977-05-06 |
ES420411A1 (en) | 1976-04-16 |
JPS5531527B2 (en) | 1980-08-19 |
DE2353673A1 (en) | 1974-05-16 |
AT330258B (en) | 1976-06-25 |
JPS50707A (en) | 1975-01-07 |
FR2327607B1 (en) | 1978-04-21 |
IT999742B (en) | 1976-03-10 |
GB1452330A (en) | 1976-10-13 |
ZA738175B (en) | 1975-05-28 |
SE395558B (en) | 1977-08-15 |
AU6231873A (en) | 1975-05-15 |
NO141137B (en) | 1979-10-08 |
CA1005908A (en) | 1977-02-22 |
BE807159A (en) | 1974-05-09 |
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