JP4000543B2 - 信号処理装置及び信号処理方法 - Google Patents

信号処理装置及び信号処理方法 Download PDF

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Publication number
JP4000543B2
JP4000543B2 JP21878298A JP21878298A JP4000543B2 JP 4000543 B2 JP4000543 B2 JP 4000543B2 JP 21878298 A JP21878298 A JP 21878298A JP 21878298 A JP21878298 A JP 21878298A JP 4000543 B2 JP4000543 B2 JP 4000543B2
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Japan
Prior art keywords
data
frequency spectrum
logical value
signal
input
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Expired - Fee Related
Application number
JP21878298A
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English (en)
Japanese (ja)
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JP2000049615A5 (enExample
JP2000049615A (ja
Inventor
英雄 佐藤
祐樹 松村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
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Sony Corp
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Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP21878298A priority Critical patent/JP4000543B2/ja
Priority to US09/365,945 priority patent/US6359849B1/en
Publication of JP2000049615A publication Critical patent/JP2000049615A/ja
Publication of JP2000049615A5 publication Critical patent/JP2000049615A5/ja
Application granted granted Critical
Publication of JP4000543B2 publication Critical patent/JP4000543B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP21878298A 1998-08-03 1998-08-03 信号処理装置及び信号処理方法 Expired - Fee Related JP4000543B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP21878298A JP4000543B2 (ja) 1998-08-03 1998-08-03 信号処理装置及び信号処理方法
US09/365,945 US6359849B1 (en) 1998-08-03 1999-08-02 Signal processing apparatus, recording medium, and signal processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21878298A JP4000543B2 (ja) 1998-08-03 1998-08-03 信号処理装置及び信号処理方法

Publications (3)

Publication Number Publication Date
JP2000049615A JP2000049615A (ja) 2000-02-18
JP2000049615A5 JP2000049615A5 (enExample) 2005-09-02
JP4000543B2 true JP4000543B2 (ja) 2007-10-31

Family

ID=16725302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21878298A Expired - Fee Related JP4000543B2 (ja) 1998-08-03 1998-08-03 信号処理装置及び信号処理方法

Country Status (2)

Country Link
US (1) US6359849B1 (enExample)
JP (1) JP4000543B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1087377B1 (en) * 1999-03-19 2007-04-25 Sony Corporation Additional information embedding method and its device, and additional information decoding method and its decoding device
JPWO2005038802A1 (ja) * 2003-10-21 2007-01-25 コニカミノルタフォトイメージング株式会社 情報記録装置及び記録プログラム並びに記録媒体
JP4888726B2 (ja) * 2007-11-29 2012-02-29 Ｋｄｄｉ株式会社 電子透かしの埋込装置および抽出装置
RU2531846C2 (ru) * 2009-03-13 2014-10-27 Конинклейке Филипс Электроникс Н.В. Встраивание и извлечение служебных данных

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2828997B2 (ja) * 1988-07-22 1998-11-25 株式会社日立製作所 適応型変換符号化装置
US5845041A (en) * 1991-11-12 1998-12-01 Mitsubishi Denki Kabushiki Kaisha Video signal recording and reproducing apparatus with high efficiency encoding
JP4215835B2 (ja) * 1996-12-24 2009-01-28 ソニー株式会社 画像記録再生装置及び画像記録再生方法

Also Published As

Publication number Publication date
US6359849B1 (en) 2002-03-19
JP2000049615A (ja) 2000-02-18

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