Invention Grant
- Patent Title: Information recording device and method, information reproducing device and method, recording medium, program, and disc recording medium
- Patent Title (中): 信息记录装置和方法，信息再现装置和方法，记录介质，程序和盘记录介质
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Application No.: US11736758Application Date: 2007-04-18
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Publication No.: US07975206B2Publication Date: 2011-07-05
- Inventor: Shoei Kobayashi , Susumu Senshu , Tamotsu Yamagami , Makoto Usui , Hideshi Ishihara , Mitsurou Moriya , Cornelis Marinus Schep , Jakob Gerrit Nijboer , Aalbert Stek
- Applicant: Shoei Kobayashi , Susumu Senshu , Tamotsu Yamagami , Makoto Usui , Hideshi Ishihara , Mitsurou Moriya , Cornelis Marinus Schep , Jakob Gerrit Nijboer , Aalbert Stek
- Applicant Address: JP Tokyo JP Kadoma-shi NL Eindhoven
- Assignee: Sony Corporation,Panasonic Corporation,Koninklijke Philips Electronics, N.V.
- Current Assignee: Sony Corporation,Panasonic Corporation,Koninklijke Philips Electronics, N.V.
- Current Assignee Address: JP Tokyo JP Kadoma-shi NL Eindhoven
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2002-017247 20020125
- Main IPC: G11C29/00
- IPC: G11C29/00 ; H03M13/00
Abstract:
An ECC block is constituted by RS(248,216,33). Of a data length of 216 bytes (symbols), only 16 bytes are allocated to BCA data and the remaining 200 bytes are used for fixed data having a predetermined value. Using the fixed data of 200 bytes and the BCA data of 16 bytes, parities of 32 bytes (symbols) are calculated. Only the BCA data of 16 bytes and the parities of the former 16 bytes of the 32-byte parities, that is, a total of 32 bytes only, are recorded in a burst cutting area of an optical disc. In decoding, error correction processing is carried out by using the fixed data of 200 bytes. The unrecorded parities of 16 bytes are processed as having been erased. Thus, the error correction capability in a burst cutting area of an optical disc can be improved.
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