| Title of Invention | AN OPTICAL RECORDING MEDIUM AND A METHOD FOR READING INFORMATION |
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| Abstract | An optical recording medium has prepits or pregrooves on tracks in a BCA region (101) where BCA marks (104) or other barcode-shaped marks are recorded, and the track pitch of these tracks is greater than the track pitch of a track in a read-only area (102) or read/write area used to record the actual user data or disc information. Tracking in BCA is enabled by forming prepits or pregrooves in the BCA. By making the track pitch in the BCA sufficiently wider than the track pitch in the read-only area (102) and other areas in an optical disc it is difficult to uniformly modify all of the barcode-shaped BCA marks (104) in the BCA (101). A method of reading information from the medium is also disclosed. |
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1816-CHENP-2004 AMANDED CLAIMS 08-10-2009.pdf
1816-CHENP-2004 AMANDED PAGES OF SPECIFICATION 08-10-2009.pdf
1816-CHENP-2004 CORRESPONDENCE OTHERS 08-10-2009.pdf
1816-CHENP-2004 FORM-1 08-10-2009.pdf
1816-CHENP-2004 FORM-13 07-05-2009.pdf
1816-CHENP-2004 OTHER DOCUMENT 08-10-2009.pdf
1816-CHENP-2004 OTHER PCT FORM 08-10-2009.pdf
1816-chenp-2004 correspondence others.pdf
1816-chenp-2004 correspondence po.pdf
1816-chenp-2004 description (complete) granted.pdf
1816-chenp-2004 power of attorney.pdf
| Patent Number | 239353 | |||||||||||||||||||||
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| Indian Patent Application Number | 1816/CHENP/2004 | |||||||||||||||||||||
| PG Journal Number | 12/2010 | |||||||||||||||||||||
| Publication Date | 19-Mar-2010 | |||||||||||||||||||||
| Grant Date | 16-Mar-2010 | |||||||||||||||||||||
| Date of Filing | 13-Aug-2004 | |||||||||||||||||||||
| Name of Patentee | KONINKLIJKE PHILIPS ELECTRONICS N.V | |||||||||||||||||||||
| Applicant Address | GROENEWOUDSEWEG 1, NL-5621 BA EINDHOVEN | |||||||||||||||||||||
Inventors:
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| PCT International Classification Number | G11B7/005 | |||||||||||||||||||||
| PCT International Application Number | PCT/JP03/01367 | |||||||||||||||||||||
| PCT International Filing date | 2003-02-10 | |||||||||||||||||||||
PCT Conventions:
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