Source: http://www.google.com/patents/US7843798?dq=7181427
Timestamp: 2014-03-15 12:44:56
Document Index: 13851935

Matched Legal Cases: ['Application No. 2003', 'Application No. 2507829', 'Application No. 04706884', 'Application No. 04', 'Application No. 2006', 'Application No. 93102103', 'Application No. 2003', 'Application No. 04706884']

Patent US7843798 - Optical information storage medium having a transition area - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn optical information storage medium includes a plurality of areas and at least one transition area. Each transition area is located between two adjacent areas. The transition area allows data to be smoothly reproduced from the optical information storage medium at a low error generation rate. Also,...http://www.google.com/patents/US7843798?utm_source=gb-gplus-sharePatent US7843798 - Optical information storage medium having a transition areaAdvanced Patent SearchPublication numberUS7843798 B2Publication typeGrantApplication numberUS 12/144,754Publication dateNov 30, 2010Filing dateJun 24, 2008Priority dateJan 30, 2003Also published asCA2507829A1, CA2507829C, CN1717725A, CN100550143C, CN101042896A, CN101042896B, EP1588361A1, EP1588361A4, EP1903563A2, EP1903563A3, EP1903564A2, EP1903564A3, EP1903565A2, EP1903565A3, EP1906392A2, EP1906392A3, EP1906393A2, EP1906393A3, US7339880, US7382714, US7408870, US7542392, US7551543, US8427931, US20040196758, US20040228254, US20050002307, US20070019531, US20080117802, US20080151741, US20080186825, US20080259780, WO2004068478A1Publication number12144754, 144754, US 7843798 B2, US 7843798B2, US-B2-7843798, US7843798 B2, US7843798B2InventorsKyung-geun LeeOriginal AssigneeSamsung Electronics Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (34), Non-Patent Citations (14), Classifications (14) External Links: USPTO, USPTO Assignment, EspacenetOptical information storage medium having a transition areaUS 7843798 B2Abstract An optical information storage medium includes a plurality of areas and at least one transition area. Each transition area is located between two adjacent areas. The transition area allows data to be smoothly reproduced from the optical information storage medium at a low error generation rate. Also, since the optical information storage medium provides standards for the transition area, it is compatible with existing optical information storage media.
a lead-in area comprising a first sub-area having a first track pitch and a second sub-area having a second track pitch different from the first track pitch;
a user data area having the second track pitch; and
wherein a first transition area is provided between the burst cutting area and the lead-in area, a second transition area is provided between the first sub-area and the second sub-area, and the burst cutting area has a third track pitch different from the first track pitch and the second track pitch.
3. The optical information storage medium of claim 2, wherein the disc-related information comprises information about a type of the information storage medium, information about a number of recording layers, information about a recording speed, and information about a disc size.
4. An apparatus to reproduce information stored in an optical information storage medium having a burst cutting area (BCA), a lead-in area which comprises a first sub-area having a first track pitch and a second sub-area having a second track pitch different from the first track pitch, and a user data area having the second track pitch, the apparatus comprising:
5. The apparatus of claim 4, wherein disc-related information is recorded in the first sub-area.
6. The apparatus of claim 5, wherein the disc-related information comprises information about a type of the information storage medium, information about a number of recording layers, information about a recording speed, and information about a disc size. Description
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of application Ser. No. 10/766,889 filed on Jan. 30, 2004, now U.S. Pat. No. 7,408,870, which claims the benefit of Korean Patent Application No. 2003-6286 filed on Jan. 30, 2003, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference.
The present invention relates to a reproduction-only information storage medium, and more particularly, to an optical information storage medium including a transition area for transitioning between two adjacent areas among the areas forming the storage medium.
According to an aspect of the present invention, there is provided a reproduction-only optical information storage medium including comprising: a plurality of areas; and at least one transition area. Each transition area is located between two adjacent areas.
According to another aspect of the present invention, there is provided a reproduction-only optical information storage medium comprising: a burst cutting area (BCA); a lead-in area; a user data area; a lead-out area; and a transition area located in at least one of an area between the BCA and the lead-in area, an area between the lead-in area and the user data area, and an area between the user data area and the lead-out area. The BCA, the lead-in area, the user data area, and the lead-out area are formed of pits.
According to still another aspect of the present invention, there is provided a reproduction-only optical information storage medium comprises: a burst cutting area (BCA); a lead-in area; a user data area; a lead-in area; and a transition area. At least one of the BCA, the lead-in area, the user data area, and the lead-out area is divided into a plurality of sub-areas. The transition area is located between two adjacent sub-areas.
FIGS. 2A through 2E show examples of a pit pattern for a transition area between a burst cutting area (BCA) and a lead-in area of an optical information storage medium according to a first embodiment of the present invention when pits for the BCA are formed in a single pattern and pits for the lead-in area are formed in a straight random pattern;
FIG. 11A shows a physical structure of an optical information storage medium according to a third embodiment of the present invention, and FIGS. 11B through 11E show physical structures of optical information storage media according to embodiments of the present invention; and
The BCA 10 stores the serial number of an optical information storage medium, for example, an optical disk, or data identifying the BCA. The lead-in area 20 stores disk-related information, copy protection information, and the like. Examples of the disk-related information are information about the type of information storage medium, such as a recordable disk, a write-once disk, or a reproduction-only disk, information about the number of recording layers, information about a recording speed, information about the disk size, and the like.
Referring to FIGS. 2A through 2E, an optical information storage medium according to a first embodiment of the present invention includes a first transition zone 15 between the BCA 10 and the lead-in area 20.
The BCA 10, the first transition area 15, and the lead-in area 20 may have either an identical track pitch or different track pitches. For example, the BCA 10 and the first transition area 15 have the same track pitch, and only the lead-in area 20 has a different track pitch. Alternatively, the first transition area 15 and the lead-in area 20 may have the same track pitch, and only the BCA 10 has a different track pitch, or the BCA 10, the first transition area 15, and the lead-in area 20 may all have different track pitches. When the BCA 10 and the lead-in area 20 have different track pitches, the first transition area 15 is formable so that its track pitch can gradually increase or decrease. For example, when a track pitch for the BCA 10 is �a� and a track pitch for the lead-in area 20 is �b� (b>a), the first transition area 15 is formed so that its track pitch can gradually increase from �a� to �b�.
The lead-in area 20, the second transition area 25, and the user data area 30 may have either an identical track pitch or different track pitches. For example, the lead-in area 20 and the second transition area 25 have the same track pitch, and only the user data area 30 has a different track pitch, or the lead-in area 20, the second transition area 25, and the user data area 30 may all have different track pitches. Alternatively, the second transition area 25 and the user data area 30 may have the same track pitch, and only the lead-in area 20 has a different track pitch. When the lead-in area 20 and the user data area 30 have different track pitches, the second transition area 25 is formable so that its track pitch can gradually increase or decrease. For example, when a track pitch for the lead-in area 20 is �c� and a track pitch for the user data area 30 is �d� (d>c), the second transition area 25 is formed so that its track pitch can gradually increase from �c� to �d�.
The case where only the lead-in area 20 is divided into two sub-areas has been described above. However, the BCA 10, the user data area 30, or the lead-out area 40 may also be divided into a plurality of sub-areas. In these cases, a transition area may be formed between two adjacent sub-areas. For example, the BCA 10 includes first and second sub-areas 10 a and 10 b, respectively, and a transition area 17, as shown in FIG. 11B. Also, the user data area 30 includes first and second sub-areas 30 a and 30 b, respectively, and a transition area 37, as shown in FIG. 11C. Finally, lead-out area 40 includes first and second sub-areas 40 a and 40 b, respectively, and a transition area 47, as shown in FIG. 11D. Also, as described above, a first transition area 15 may be included between the BCA 10 and the lead-in area 20; and the BCA 10, the first transition area 15, and the lead-in area 20 may all have the same track pitch, or may all have different track pitches; or the BCA 10 and the first transition area 15 may have the same track pitch and the lead-in area 20 may have a different track pitch; or the first transition area 15 and the lead-in area 20 may have the same track pitch and the BCA 10 may have a different track pitch. Also, as described above, a second transition area 25 may be included between the lead-in area 20 and the user data area 30, and the lead-in area 20, the second transition area 25, and the user data area 30 may all have the same track pitch, or may all have different track pitches; or the lead-in area 20 and the second transition area 25 may have the same track pitch and the user data area 30 may have a different track pitch; or the second transition area 25 and the user data area 30 may have the same track pitch and the lead-in area 20 may have a different track pitch. For example, the first transition area 15 is included between the BCA 10 and the lead-in area 20; the lead-in area 20 includes the first and second sub-areas 20 a and 20 b, respectively, and the transition area 17; and the first sub-area 20 a has a first track pitch, the second sub-area 20 b and the user data area 30 have a second track pitch, and the BCA 10 has a third track pitch, as shown in FIG. 11E.
As described above, an optical information storage medium according to the present invention includes a plurality of areas, and a transition area is included in at least one of boundary areas formed by the areas. For example, a transition area is included in at least one of an area between the BCA 10 and the lead-in area 20, an area between the lead-in area 20 and the user data area 30, and an area between the first and second sub-areas 20 a and 20 b. A pit pattern formed in the transition area may be the same as that formed in the area that is in front of or at the rear of the transition area. The area in front of the transition area denotes an area that is closer to the center of the storage medium than the transition area in the radial direction of the storage medium. The area at the rear of the transition area denotes an area that is farther away from the center of the storage medium than the transition area in the radial direction of the storage medium.
The optical information storage medium according to the present invention may be constituted with a single layer or a plurality of layers.
As described above, the optical information storage medium according to the present invention is divided into a plurality of areas according to function or purpose, and a transition area is included between two adjacent areas. Thus, data is smoothly reproduced at a low error generation rate. Also, since the optical information storage medium according to the present invention provides standards for the transition area, it is compatible with existing optical information storage media.
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No. 10/433,889, filed Jan. 30, 2004, Kyung-geun Lee, Samsung Electronics Co., Ltd.11U.S. Appl. No. 10/766,958, filed Jan. 30, 2004, Kyung-geun Lee, Samsung Electronics Co., Ltd.12U.S. Appl. No. 10/766,959, filed Jan. 30, 2004, Kyung-geun Lee, Samsung Electronics Co., Ltd.13U.S. Appl. No. 11/527,685, filed Sep. 27, 2006, Kyung-geun Lee, Samsung Electronics Co., Ltd.14U.S. Appl. No. 12/061,759, filed Apr. 3, 2008, Kyung-geun Lee, Samsung Electronics Co., Ltd.Classifications U.S. Classification369/275.4, 369/275.3International ClassificationG11B7/007, G11B7/00, G11B7/005, G11B5/09, G11B7/24Cooperative ClassificationG11B7/005, G11B7/0079, G11B7/24079, G11B7/00736European ClassificationG11B7/007R, G11B7/007Z, G11B7/24079RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google