JP2000293932A5 - Optical carrier discrimination device, optical carrier discrimination method, optical recording medium discrimination device and optical recording medium discrimination method - Google Patents
Optical carrier discrimination device, optical carrier discrimination method, optical recording medium discrimination device and optical recording medium discrimination method Download PDFInfo
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- JP2000293932A5 JP2000293932A5 JP1999100355A JP10035599A JP2000293932A5 JP 2000293932 A5 JP2000293932 A5 JP 2000293932A5 JP 1999100355 A JP1999100355 A JP 1999100355A JP 10035599 A JP10035599 A JP 10035599A JP 2000293932 A5 JP2000293932 A5 JP 2000293932A5
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- recording medium
- optical recording
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- optical carrier
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- 230000003287 optical Effects 0.000 title description 24
- 239000000969 carrier Substances 0.000 title description 7
- 238000005259 measurement Methods 0.000 description 1
Description
【特許請求の範囲】
【請求項１】 １つの信号面を有する第１の光担体と、２つの信号面を有する第２の光担体との夫々の表面と信号面に合焦したレーザの反射光の時間情報を用いて複数の光担体の種類を判別する様に成した光担体判別装置に於いて、
上記光担体の表面と上記信号面で生ずる反射光の数を計数する計数手段を具備し、
上記計数手段によって上記２つの信号面を有する複数種類の光担体を判別して成ることを特徴とする光担体判別装置。
【請求項２】 １つの信号面を有する第１の光担体と、２つの信号面を有する第２の光担体との夫々の表面と信号面に合焦したレーザの反射光の時間タイミング差を用いて複数の光担体の種類を判別する様に成した光担体判別方法に於いて、
上記光担体の表面と上記信号面で生ずる反射光の数を計数する計数ステップを具備し、
上記計数ステップによって上記２つの信号面を有する複数種類の光担体を判別して成ることを特徴とする光担体判別方法。
【請求項３】 信号面を有する光記録媒体の判別を可能とする光記録媒体判別装置において、
上記信号面、及び光記録媒体表面からの反射光を検出し、該反射光がそれぞれの面でジャストフォーカスとなるタイミングの時間差から複数種類の光記録媒体を判別できる判別手段を有することを特徴とする光記録媒体判別装置。
【請求項４】 上記判別手段は、反射光の振幅を用いて判別することを特徴とする請求項３に記載の光記録媒体判別装置。
【請求項５】 上記判別手段は、プルイン信号を用いて判別することを特徴とする請求項４に記載の光記録媒体判別装置。
【請求項６】 上記判別手段は、フォーカスエラー信号を用いて判別することを特徴とする請求項４に記載の光記録媒体判別装置。
【請求項７】 上記判別手段は、光記録媒体の種類ごとに判別するまでの測定回数を異ならせることを特徴とする請求項４に記載の光記録媒体判別装置。
【請求項８】 信号面を有する光記録媒体の判別を可能とする光記録媒体判別方法において、
上記信号面、及び光記録媒体表面からの反射光を検出し、該反射光がそれぞれの面でジャストフォーカスとなるタイミングの時間差から複数種類の光記録媒体を判別することを特徴とする光記録媒体判別方法。
[Claims]
1. Using the time information of the reflected light of the laser focused on the respective surfaces and signal surfaces of the first optical carrier having one signal surface and the second optical carrier having two signal surfaces. In a photocarrier discriminator designed to discriminate the types of a plurality of photocarriers.
A counting means for counting the number of reflected light generated on the surface of the photocarrier and the signal surface is provided.
An optical carrier discriminating device comprising discriminating a plurality of types of photocarriers having the two signal surfaces by the counting means.
2. The time timing difference between the respective surfaces of the first optical carrier having one signal surface and the second optical carrier having two signal surfaces and the reflected light of the laser focused on the signal surface. In the photocarrier discrimination method, which is used to discriminate the types of a plurality of photocarriers.
A counting step for counting the number of reflected light generated on the surface of the photocarrier and the signal surface is provided.
A method for discriminating photocarriers, which comprises discriminating a plurality of types of photocarriers having the above two signal surfaces by the counting step.
3. In an optical recording medium discriminating device capable of discriminating an optical recording medium having a signal surface,
It is characterized by having a discriminating means capable of detecting the reflected light from the signal surface and the surface of the optical recording medium and discriminating a plurality of types of optical recording media from the time difference of the timing at which the reflected light becomes just focus on each surface. Optical recording medium discrimination device.
4. The optical recording medium discriminating device according to claim 3, wherein the discriminating means discriminates using the amplitude of the reflected light.
5. The optical recording medium discriminating device according to claim 4, wherein the discriminating means uses a pull-in signal for discriminating.
6. The optical recording medium discriminating device according to claim 4, wherein the discriminating means uses a focus error signal for discriminating.
7. The optical recording medium discriminating device according to claim 4, wherein the discriminating means has a different number of measurements until discrimination is performed for each type of optical recording medium.
8. In an optical recording medium discrimination method that enables discrimination of an optical recording medium having a signal surface,
An optical recording medium characterized in that the reflected light from the signal surface and the surface of the optical recording medium is detected, and a plurality of types of optical recording media are discriminated from the time difference of the timing at which the reflected light becomes just focus on each surface. Discrimination method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11100355A JP2000293932A (en) | 1999-04-07 | 1999-04-07 | Device and method for discriminating optical carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11100355A JP2000293932A (en) | 1999-04-07 | 1999-04-07 | Device and method for discriminating optical carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000293932A JP2000293932A (en) | 2000-10-20 |
| JP2000293932A5 true JP2000293932A5 (en) | 2006-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11100355A Pending JP2000293932A (en) | 1999-04-07 | 1999-04-07 | Device and method for discriminating optical carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000293932A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3975953B2 (en) * | 2003-03-20 | 2007-09-12 | 日本ビクター株式会社 | Optical disc type discrimination method and optical disc apparatus |
| JP2004288292A (en) | 2003-03-20 | 2004-10-14 | Victor Co Of Japan Ltd | Focus searching method and optical disk device |
| KR20060046848A (en) * | 2004-11-12 | 2006-05-18 | 삼성전자주식회사 | Method of determining a type of an optical disc, and data recording and/or reproducing apparatus therefor |
| JP2005116176A (en) * | 2005-01-14 | 2005-04-28 | Pioneer Electronic Corp | Multilayer information recording medium and information reproducing device |
| JP2009070431A (en) * | 2007-09-10 | 2009-04-02 | Sony Nec Optiarc Inc | Optical disk device, and method and program for discriminating kind of disk |
-
1999
- 1999-04-07 JP JP11100355A patent/JP2000293932A/en active Pending
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