Source: http://www.google.com/patents/US7917958?dq=4316055
Timestamp: 2016-09-01 05:54:50
Document Index: 630790767

Matched Legal Cases: ['Application No. 2003', 'Application No. 2003', 'Application No. 200480000399', 'Application No. 06001614', 'Application No. 2006', 'Application No. 2008', 'Application No. 2007', 'Application No. 200480000399', 'Application No. 093101544', 'Application No. 095114984']

Patent US7917958 - Recording medium with copy protection indicating information and apparatus ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which includes copy protection indicating information, which can identify whether copy protection information is needed or not for the playback of contents stored on the recording medium, and to methods and...http://www.google.com/patents/US7917958?utm_source=gb-gplus-sharePatent US7917958 - Recording medium with copy protection indicating information and apparatus and methods for forming, recording, reproducing and restricting reproduction of the recording mediumAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7917958 B2Publication typeGrantApplication numberUS 11/367,599Publication dateMar 29, 2011Filing dateMar 6, 2006Priority dateJan 23, 2003Fee statusPaidAlso published asCA2487404A1, CA2487404C, CN1698101A, CN1698102A, CN1819044A, CN1819044B, CN101188116A, DE602004020317D1, EP1586087A1, EP1586087A4, EP1586087B1, EP1586089A1, EP1586089A4, EP1586089B1, EP1677299A2, EP1677299A3, EP1677299B1, EP1863030A2, EP1863030A3, EP1863030B1, US7733755, US7733756, US8006308, US20040168075, US20040252603, US20060156038, US20090052314, WO2004066283A1, WO2004066287A1Publication number11367599, 367599, US 7917958 B2, US 7917958B2, US-B2-7917958, US7917958 B2, US7917958B2InventorsSang Woon Suh, Jin Yong KimOriginal AssigneeLg Electronics Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (108), Non-Patent Citations (36), Referenced by (2), Classifications (53), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetRecording medium with copy protection indicating information and apparatus and methods for forming, recording, reproducing and restricting reproduction of the recording medium
US 7917958 B2Abstract
A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which includes copy protection indicating information, which can identify whether copy protection information is needed or not for the playback of contents stored on the recording medium, and to methods and apparatuses for forming, recording, and reproducing data on the recording medium.
a lead-in zone storing a control information unit configured to control recording or reproducing main data on the recording medium, the control information unit including an identifier indicating whether or not the recording medium contains copy protection information for use in decrypting or encrypting main data, the control information unit further including at least medium size information, medium structure information, and data zone allocation information, a plurality of the control information units being repeated in the lead-in zone, the repeated control information units and/or the copy protection information being formed as a wobbled pattern on an area of the recording medium, the repeated control information units and the copy protection information being recorded in different areas of the recording medium from each other; and
a data zone configured to store the main data; wherein each control information unit of the plurality of control information units includes identical information as each other control information unit.
2. The recording medium according to claim 1, wherein the main data is reproduced utilizing the copy protection information if the recording medium contains copy protection information for use in decrypting the main data, or the main data is reproduced directly without utilizing the copy protection information, if the recording medium does not contain copy protection information for use in decrypting the main data.
3. The recording medium according to claim 2, wherein the recording medium does not contain copy protection information for use in decrypting the data if the identifier indicates the recording medium does not contain copy protection information.
4. The recording medium of claim 1, wherein the copy protection information includes a key value for encrypting/decrypting the main data.
5. The recording medium of claim 4, wherein the copy protection information is selectively or repeatedly recorded on the recording medium.
6. The recording medium of claim 1, wherein the identifier and the copy protection information are recorded in a lead-in area, of the recording medium, and wherein the identifier is followed by the copy protection information.
7. A method of forming a recording medium, comprising:
generating a control information unit to control a recording or reproducing of main data to be recorded or recorded on the recording medium, the control information unit including an identifier indicating if the recording medium is configured to contain copy protection information required for decrypting and encrypting the main data, the control information unit further including at least medium size information, medium structure information, and data zone allocation information;
forming a first area in the recording medium, a plurality of the control information units being repeated in the first area, the copy protection information not being formed in the first area, the repeated control information units and/or the copy protection information being formed as a wobbled pattern on an area of the recording medium; and
forming a second area in the recording medium, the second area configured to store the main data; wherein each control information unit of the plurality of control information units includes identical information as each other control information unit.
8. The method of claim 7, wherein the first area is a lead-in area of the recording medium.
9. The method of claim 7, wherein the copy protection information is recorded repeatedly.
10. A method for reproducing data from a recording medium, the method comprising:
detecting an identifier indicating if the recording medium contains copy protection information for use in decrypting main data, the identifier being stored in a control information unit, the control information unit including information for controlling reproduction of the main data, the control information unit further including at least medium size information, medium structure information, and data zone allocation information, a plurality of the control information units being repeated on the recording medium, the plurality of repeated control information units and/or the copy protection information being formed as a wobbled pattern, the plurality of repeated control information units and the copy protection information being recorded in different areas of the recording medium from each other; and
reproducing the main data using the copy protection information if the identifier indicates that the recording medium contains the copy protection information, or reproducing the main data directly if the identifier indicates that the recording medium does not contain the copy protection information; wherein each control information unit of the plurality of control information units includes identical information as each other control information unit.
11. The method of claim 10, wherein the detecting includes extracting the identifier from at least one of the plurality of repeated control information units.
12. The method of claim 10, wherein the copy protection information includes a key value for encrypting/decrypting the main data, and wherein the reproducing includes processing the main data using the key value.
13. The method of claim 12, wherein the copy protection information is repeatedly recorded in the recording medium, and wherein the reproducing includes detecting at least one repetition of the repeatedly-recorded copy protection information.
14. An apparatus for reproducing data from a recording medium, the apparatus comprising:
a signal detector configured to detect data from the recording medium by converting a beam reflected from the recording medium into electric signals corresponding to the data, the data including main data and a control information unit for controlling reproduction of the main data recorded on the recording medium, the control information unit including an identifier indicating if the recording medium contains copy protection information for use in decrypting the main data, the control information unit further including at least medium size information, medium structure information, and data zone allocation information, a plurality of the control information units being repeated on the recording medium, a plurality of the control information units being repeatedly recorded on the recording medium, the plurality of repeated control information units and/or the copy protection information being formed as a wobbled pattern, and the signal detector being configured to detect the copy protection information and at least one of the plurality of the repeated control information units in different areas of the recording medium from each other; and
a signal processor configured to process the main data using the copy protection information if the identifier indicates that the recording medium contains the copy protection information, or reproduce the main data directly if the identifier indicates that the recording medium does not contain the copy protection information; wherein each control information unit of the plurality of control information units includes identical information as each other control information unit.
15. The apparatus of claim 14, wherein the copy protection information includes a key for encrypting/decrypting the main data, and wherein the signal processor is configured to process the main data using the key.
16. The apparatus of claim 15, wherein the copy protection information is repeatedly recorded in the recording medium, and the signal detector is configured to detect at least one repetition of the repeatedly-recorded copy protection information.
This is a divisional application of, and claims priority under 35 U.S.C. �120 on, U.S. application Ser. No. 10/762,536, filed Jan. 23, 2004, the entire contents of which are incorporated by reference, which claims priority of Korean Patent Application No. 2003-004488, filed on Jan. 23, 2003; and Korean Patent Application No. 2003-008317, filed on Feb. 10, 2003, both in the Korean Intellectual Property Office, the entire contents of which are hereby incorporated by reference.
As illustrated in FIG. 1, a BD-RE has an inner hole; clamping area, transition area, BCA (Burst Cutting Area) area, and lead-in area, located in sequential order along radial direction. A data area and lead-out area reside in the center and outermost annulus of the disc, respectively.
In this modulation method, a bit with value 0 may be represented by a transition at the start of the bit cell and a bit with value 1 may be represented by a transition at the start and in the middle of the bit cell. The modulated bits may be recorded on the disc by a deviation of the groove from its average centerline as indicated in FIG. 2. The length of each bit cell may be 36 T, where T corresponds to the length of a channel bit in the rewritable data areas.
In exemplary embodiments, the present invention is directed to a recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which includes copy protection indicating information, which can identify whether copy protection information is needed or not for the playback of contents stored on the recording medium, and to methods and apparatuses for forming, recording, and reproducing data on the recording medium.
In exemplary embodiments, the present invention is directed to a recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which includes copy protection indicating information indicating whether or not the recording medium contains copy protection information for use in decrypting the recorded data, wherein the copy protection indicating information and/or the copy protection information are recorded in wobbled pre-pit pattern on an area of the recording medium.
In exemplary embodiments, the present invention is directed to a method for copy protection, which includes utilizing copy protection indicating information to indicate whether or not the recording medium contains copy protection information for use in decrypting the data, to reproduce the data, wherein the copy protection indicating information and/or the copy protection information are recorded in wobbled pre-pit pattern on an area of the recording medium.
In exemplary embodiments, the present invention is directed to a method for copy protection, which includes detecting copy protection indicating information indicating whether or not the recording medium contains copy protection information for use in decrypting the data, wherein the copy protection indicating information and/or the copy protection information are recorded in wobbled pre-pit pattern on an area of the recording medium; and playing the data utilizing the copy protection information if the recording medium contains copy protection information for use in decrypting the data, or playing the data directly without utilizing the copy protection information, if the recording medium does not contain copy protection information for use in decrypting the data, based on the detected copy protection indicating information.
In exemplary embodiments, the present invention is directed to a method for copy protection, which includes utilizing copy protection indicating information to indicate whether or not the recording medium contains copy protection information for use in decrypting the data, wherein the copy protection indicating information and/or the copy protection information are recorded in wobbled pre-pit pattern on an area of the recording medium.
In exemplary embodiments, the present invention is directed to an apparatus for copy protection, wherein said apparatus utilizes copy protection indicating information to determine whether or not the recording medium contains copy protection information for use in decrypting the data, to reproduce the data based on the copy protection indicating information and the copy protection information, wherein the copy protection indicating information and/or the copy protection information are recorded in wobbled pre-pit pattern on an area of the recording medium.
In exemplary embodiments, the present invention is directed to an apparatus for copy protection, which includes a detector detecting signals recorded on the recording medium, the signal including copy protection indicating information to determine whether or not the recording medium contains copy protection information for use in decrypting the data, wherein the copy protection indicating information and/or the copy protection information are recorded in wobbled pre-pit pattern on an area of the recording medium; and a signal processor for playing the data utilizing the copy protection information if the recording medium contains copy protection information for use in decrypting the data, or playing the data directly without utilizing the copy protection information, if the recording medium does not contain copy protection information for use in decrypting the data based on the copy protection indicating information.
FIG. 7 is a diagram illustrating an example where data is encoded in wobbled pits by bi-phase modulation, whereby data are detected. In FIG. 7, the value of ‘0101’ is encoded in bi-phase modulated form, e.g., bi-phase modulated HFM Groove, along with wobbled pattern of wobbled pits. The recording example of wobbled pits in FIG. 7 comprises 36 Ts (including marks and spaces) where six 3 T signals (mark) make up of the value of one bit. In the example, left and right transition of a sequence of six pits denoting ‘1’ and a sequence of six pits denoting ‘0’ are provided in opposite directions.
When information is recorded in pits, identical pits need not be repeated but modulated varying pits (2 T-8 T) in accordance with input information may be recorded. In this case, too, however, the position of a pit sequence (namely, phase) is shifted approximately by every 18 Ts in order to encode data into wobbled pattern of wobbled pits.
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No. 11/357,059.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8576679 *Mar 25, 2011Nov 5, 2013Panasonic CorporationApparatus and method for using content on an optical disc having plural partial areas for recording control information indicating that the use of the content is not permittedUS20120051203 *Mar 25, 2011Mar 1, 2012Masao NonakaApparatus for using content, usage method of the content, computer program, recording medium and integrated circuit* Cited by examinerClassifications U.S. Classification726/26, 726/27, 726/33, 726/31, 713/189, 726/32International ClassificationG06F12/14, G11B20/18, G11B7/005, G11B7/007, G11B19/12, G11B23/28, G06F17/30, G06F7/04, G11B20/12, G11B20/00, G11B7/013Cooperative ClassificationG11B7/0053, G11B20/00326, G11B20/00268, G11B2020/1279, G11B20/00601, G11B20/00376, G11B23/281, G11B7/24085, G11B20/0021, G11B7/24082, G11B7/00736, G11B20/00753, G11B20/1217, G11B2220/2541, G11B19/122, G11B20/00492, G11B2020/1288, G11B20/00304, G11B2020/122, G11B20/00086, G11B20/00405European ClassificationG11B7/007R, G11B20/00P, G11B20/12D, G11B7/005W, G11B19/12C, G11B20/00P5A6D1, G11B20/00P5, G11B20/00P6B2, G11B20/00P11B1, G11B20/00P5G1, G11B20/00P5A6E, G11B20/00P5A6A1, G11B20/00P5A6P, G11B7/24082, G11B20/00P5A6LLegal EventsDateCodeEventDescriptionSep 16, 2014FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services