CA1182916A - Record carrier having an optically readable information structure and apparatus for reading said record carrier - Google Patents
Record carrier having an optically readable information structure and apparatus for reading said record carrierInfo
- Publication number
- CA1182916A CA1182916A CA000388128A CA388128A CA1182916A CA 1182916 A CA1182916 A CA 1182916A CA 000388128 A CA000388128 A CA 000388128A CA 388128 A CA388128 A CA 388128A CA 1182916 A CA1182916 A CA 1182916A
- Authority
- CA
- Canada
- Prior art keywords
- phase
- information
- record carrier
- read
- signal
- 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
- 230000010363 phase shift Effects 0.000 claims abstract description 24
- 230000005855 radiation Effects 0.000 claims description 17
- 210000001747 pupil Anatomy 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011896 sensitive detection Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 30
- 230000006870 function Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 5
- 239000000969 carrier Substances 0.000 description 3
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- XUKUURHRXDUEBC-KAYWLYCHSA-N Atorvastatin Chemical compound C=1C=CC=CC=1C1=C(C=2C=CC(F)=CC=2)N(CC[C@@H](O)C[C@@H](O)CC(O)=O)C(C(C)C)=C1C(=O)NC1=CC=CC=C1 XUKUURHRXDUEBC-KAYWLYCHSA-N 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 101100504379 Mus musculus Gfral gene Proteins 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8103504A NL8103504A (nl) | 1981-07-24 | 1981-07-24 | Registratiedrager met een optisch uitleesbare informatiestructuur en inrichting voor het uitlezen daarvan. |
| NL8103504 | 1981-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1182916A true CA1182916A (en) | 1985-02-19 |
Family
ID=19837845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000388128A Expired CA1182916A (en) | 1981-07-24 | 1981-10-16 | Record carrier having an optically readable information structure and apparatus for reading said record carrier |
Country Status (11)
| Country | Link |
|---|---|
| JP (2) | JPS5819748A (en, 2012) |
| AT (1) | AT371621B (en, 2012) |
| BE (1) | BE890760A (en, 2012) |
| CA (1) | CA1182916A (en, 2012) |
| DD (1) | DD201625A5 (en, 2012) |
| DE (1) | DE3141103A1 (en, 2012) |
| ES (1) | ES8207370A1 (en, 2012) |
| GB (1) | GB2103409B (en, 2012) |
| IT (1) | IT1140225B (en, 2012) |
| NL (1) | NL8103504A (en, 2012) |
| SE (1) | SE453543B (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121505A1 (de) * | 1991-06-28 | 1993-01-07 | Sonopress Prod | Plattenfoermiger speicher fuer binaere informationen |
| AU661720B2 (en) * | 1992-02-14 | 1995-08-03 | Sony Corporation | Digital data recording medium, method and apparatus |
| US6760299B1 (en) * | 1999-06-30 | 2004-07-06 | Sharp Kabushiki Kaisha | Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction |
| US8693295B2 (en) | 2006-07-27 | 2014-04-08 | Mitsubishi Electric Corporation | Optical disc medium and optical disc device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7803517A (nl) * | 1978-04-03 | 1979-10-05 | Philips Nv | Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen. |
| NL7810462A (nl) * | 1978-10-19 | 1980-04-22 | Philips Nv | Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare stralingsreflekterende informatiestruktuur |
| CA1165871A (en) * | 1978-11-08 | 1984-04-17 | Kornelis Bulthuis | Optically inscribable record carrier |
-
1981
- 1981-07-24 NL NL8103504A patent/NL8103504A/nl not_active Application Discontinuation
- 1981-10-16 SE SE8106133A patent/SE453543B/sv not_active IP Right Cessation
- 1981-10-16 GB GB08131237A patent/GB2103409B/en not_active Expired
- 1981-10-16 DD DD81234162A patent/DD201625A5/de unknown
- 1981-10-16 AT AT0444881A patent/AT371621B/de not_active IP Right Cessation
- 1981-10-16 CA CA000388128A patent/CA1182916A/en not_active Expired
- 1981-10-16 JP JP56164382A patent/JPS5819748A/ja active Granted
- 1981-10-16 ES ES506292A patent/ES8207370A1/es not_active Expired
- 1981-10-16 IT IT24539/81A patent/IT1140225B/it active
- 1981-10-16 BE BE0/206263A patent/BE890760A/fr not_active IP Right Cessation
- 1981-10-16 DE DE19813141103 patent/DE3141103A1/de active Granted
-
1990
- 1990-08-20 JP JP2217238A patent/JPH03116456A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0366735B2 (en, 2012) | 1991-10-18 |
| IT8124539A0 (it) | 1981-10-16 |
| ES506292A0 (es) | 1982-09-01 |
| JPH03116456A (ja) | 1991-05-17 |
| DE3141103C2 (en, 2012) | 1991-05-29 |
| JPS5819748A (ja) | 1983-02-04 |
| NL8103504A (nl) | 1983-02-16 |
| DE3141103A1 (de) | 1983-02-10 |
| SE453543B (sv) | 1988-02-08 |
| AT371621B (de) | 1983-07-11 |
| GB2103409B (en) | 1986-04-23 |
| ATA444881A (de) | 1982-11-15 |
| JPH0421254B2 (en, 2012) | 1992-04-09 |
| SE8106133L (sv) | 1983-01-25 |
| IT1140225B (it) | 1986-09-24 |
| DD201625A5 (de) | 1983-07-27 |
| GB2103409A (en) | 1983-02-16 |
| BE890760A (fr) | 1982-04-16 |
| ES8207370A1 (es) | 1982-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |