AU5370873A - Apparatus for reading a record carrier in which information, for example, video and/or audio information, is recorded in at least one track - Google Patents
Apparatus for reading a record carrier in which information, for example, video and/or audio information, is recorded in at least one trackInfo
- Publication number
- AU5370873A AU5370873A AU53708/73A AU5370873A AU5370873A AU 5370873 A AU5370873 A AU 5370873A AU 53708/73 A AU53708/73 A AU 53708/73A AU 5370873 A AU5370873 A AU 5370873A AU 5370873 A AU5370873 A AU 5370873A
- Authority
- AU
- Australia
- Prior art keywords
- information
- track
- video
- recorded
- reading
- 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
Classifications
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
- G11B7/0901—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 for track following only
-
- 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
- G11B7/0908—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 for focusing only
-
- 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
- G11B7/0908—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 for focusing only
- G11B7/0916—Foucault or knife-edge methods
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7204204,A NL171516C (en) | 1972-03-29 | 1972-03-29 | DEVICE FOR READING A REGISTRATION CARRIER ALONG OPTICAL ROAD AND PLATFORM REGISTRATION CARRIERS INTENDED FOR READING WITH THIS DEVICE. |
Publications (2)
Publication Number | Publication Date |
---|---|
AU5370873A true AU5370873A (en) | 1974-09-26 |
AU479798B2 AU479798B2 (en) | 1974-09-26 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
AT328001B (en) | 1976-02-25 |
FR2178106B1 (en) | 1978-09-08 |
JPS4910057A (en) | 1974-01-29 |
CA1022676A (en) | 1977-12-13 |
ES413062A1 (en) | 1976-06-16 |
DE2313741B2 (en) | 1976-02-26 |
FR2178106A1 (en) | 1973-11-09 |
DE2313741A1 (en) | 1973-10-11 |
NL171516C (en) | 1983-04-05 |
JPS5313122B2 (en) | 1978-05-08 |
DK133212B (en) | 1976-04-05 |
DK133212C (en) | 1977-03-28 |
SE388957B (en) | 1976-10-18 |
IT983615B (en) | 1974-11-11 |
NO141389B (en) | 1979-11-19 |
GB1428731A (en) | 1976-03-17 |
CH562492A5 (en) | 1975-05-30 |
ATA263273A (en) | 1975-05-15 |
NO141389C (en) | 1980-02-27 |
NL7204204A (en) | 1973-10-02 |
ZA731525B (en) | 1974-10-30 |
NL171516B (en) | 1982-11-01 |
BE797398A (en) | 1973-09-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1033834A (en) | Data record tracking using track identifying information in the gaps between recorded data groups | |
CA1019833A (en) | Information records and recording/playback systems therefor | |
NL177168C (en) | METHOD FOR RECORDING A VIDEO SIGNAL AND RECORD CARRIER WITH VIDEO INFORMATION RECORDED ACCORDING TO THE METHOD AND AN APPARATUS FOR READING A RECORD CARRIER. | |
NO141772C (en) | DEVICE FOR READING A PLATFORM RECORDING CARRIER IN WHICH RECORD SIGNALS, PARTICULAR VIDEO AND / OR AUDIO SIGNALS | |
ZA7710B (en) | Apparatus for reading a record carrier on which information,for example video and/or audio information if stored | |
CA1010569A (en) | Method and apparatus for recording and/or reproducing a signal on a record disc | |
JPS56107677A (en) | Method and device for reproducing video information for video disk | |
CA968277A (en) | High density information records and playback apparatus therefor | |
CA1026461A (en) | Apparatus for recording and/or reproducing information signals | |
CA1015059A (en) | Apparatus and method for recording and reproducing a video signal in successive record tracks on a record sheet without guard bands between adjacent tracks | |
CA1029130A (en) | Record carrier on which information is recorded in an optical structure | |
CA1012523A (en) | Video tape recording and/or reproducing apparatus | |
DK131589B (en) | Method for recording a video signal and an audio signal in the same track on a record carrier. | |
CA1023467A (en) | Tape recording and/or reproducing apparatus | |
CA1005907A (en) | Apparatus for reading a record carrier on which information is recorded in at least one track | |
CA1022676A (en) | Apparatus for reading a record carrier in which information, for example, video and/or audio information, is recorded in at least one track | |
CA919208A (en) | Apparatus for recording and/or playing back magnetic recordings on or from a flexible, in particular tape-shaped, record carrier | |
AU451838B2 (en) | Tape recording and reproducing apparatus | |
AU479798B2 (en) | Apparatus for reading a record carrier in which information, for example, video and/or audio information, is recorded in at least one track | |
CA956028A (en) | Apparatus for reproducing information recorded on a magnetic recording sheet | |
CA1021058A (en) | Apparatus for recording and playing back video information | |
AU1673770A (en) | Apparatus for recording and for reproducing magnetic high-frequency recordings, in particular video signals, on or from a tape shaped record carrier, and cassette for use with the apparatus | |
AU479735B2 (en) | High density information records and playback apparatus therefor | |
AU485226B2 (en) | Apparatus for reading a record carrier on which information is recorded inat least one track | |
ZA734634B (en) | Apparatus for reading a record carrier on which information is recorded in at least one track |