Title:
変調装置および方法、DSV制御ビット生成方法、記録媒体、並びにプログラム
Document Type and Number:
Japanese Patent JP4178795
Kind Code:
B2
Abstract:
The present invention relates to a modulation apparatus and method for more accurately determining a value of a control bit to be inserted into a data sequence, and to a DSV-control-bit generating method. A 1-7 PP data conversion unit 52 supplies modulation-delimiter information including information regarding delimiters of modulation of a data sequence based on a conversion table based on Table 3 to a modulation-delimiter detecting unit 81, and supplies to a valid-delimiter detecting unit 81 a DSV-segment-delimiter. signal including information regarding a delimiter position of a DSV segment of the data sequence including the DSV control bit inserted. The modulation-delimiter detecting unit 81 detects modulation-delimiter positions based on the modulation-delimiter information supplied thereto, and supplies a modulation-delimiter signal to the valid-delimiter detecting unit 82. The valid-delimiter detecting unit 82, based on the DSV-segment-delimiter signal supplied thereto, detects a valid-delimiter position for controlling timing for determining a DSV control bit of the relevant DSV segment from the modulation-delimiter positions represented by the modulation-delimiter signal supplied thereto.
Inventors:
Toshiyuki Nakagawa
Tobita Minoru
Okamura completed
Tobita Minoru
Okamura completed
Application Number:
JP2002013776A
Publication Date:
November 12, 2008
Filing Date:
January 23, 2002
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G11B20/14; H03M5/14; H03M7/14
Domestic Patent References:
| JP11177431A | ||||
| JP2000068846A | ||||
| JP2000068847A | ||||
| JP2003179497A |
Attorney, Agent or Firm:
Yoshio Inamoto
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