TWI343564B - Information carrier comprising access information - Google Patents

Information carrier comprising access information Download PDF

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Publication number
TWI343564B
TWI343564B TW093103755A TW93103755A TWI343564B TW I343564 B TWI343564 B TW I343564B TW 093103755 A TW093103755 A TW 093103755A TW 93103755 A TW93103755 A TW 93103755A TW I343564 B TWI343564 B TW I343564B
Authority
TW
Taiwan
Prior art keywords
information
carrier
access
information carrier
area
Prior art date
Application number
TW093103755A
Other languages
English (en)
Other versions
TW200428364A (en
Inventor
Aalbert Stek
Martinus Wilhelmus Blum
Rompaey Bart Van
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200428364A publication Critical patent/TW200428364A/zh
Application granted granted Critical
Publication of TWI343564B publication Critical patent/TWI343564B/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • 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
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    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G—PHYSICS
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    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G—PHYSICS
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    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
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    • G06F3/0673—Single storage device
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    • G11B20/0013—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the measure concerns not the entire record carrier, but a specific physical or logical area of one or more record carriers
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    • G11B20/00405—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track
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    • G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
    • G11B20/00695—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are read from the recording medium
    • G—PHYSICS
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    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
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    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
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    • G11B2020/1279—Permanent information and control data stored in the PIC zone of a Blu-Ray disc
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    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • G11B2020/1461—8 to 14 modulation, e.g. the EFM code used on CDs or mini-discs
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    • G11B2020/184—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information using a Reed Solomon [RS] code using a cross-interleaved Reed Solomon [CIRC]
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    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

1343564 九、發明說明： 【發明所屬之技術領域】 本發明有關-種用㈣持使用者資訊的資訊載體，該資 訊載體包含用於存取該使用者資訊的存取資訊，該存取資 訊係储存在該資訊載體之—預定的第一區域中。本發明進 一步有關用於讀取該資訊載體之資訊的裝置。 【先前技術】 在保持使用者資訊之資訊載體上隱藏存取資訊的技術事 實在於轉移他人（駭客）對所要隱藏之存取資訊的注意力。使 用此存取資訊，即可存取資訊載體上的使用者資訊。為了 複製保護的目的，有時需要隱藏此存取資訊；此存取資訊 可以隱藏在，例如，所要保護的使用者資訊令或是此存 取貝讯可以隱藏在資訊載體上的側面通道中。例如，在諸 如CD或DVD等光學資訊載體中，[知可將存取資訊寫入所 謂的「擺動通道（wobb丨echanne丨）」中（有時又稱為「徑向錯 誤通道（radial error channel)」）。 【發明内容】 本發明的目的在於實現一種包含存取資訊以進一步防止 非法擷取該使用者資訊的資訊載體。 根據本發明，利用其特徵為該資訊載體進一步包含至少 一與該第一區域不同的另一區域且該另一區域包含儲存在 該負Λ載體中之虛擬資訊的資訊載體，即可達到此目的。 本發明係根據讀取信號的雜訊等級在隱藏存取資訊的區 域中會稍微增加的覲點。心懷不執的人士可觀察到此雜訊 9! I41.doc 1343564 等級，因而判定存取資訊所在的區域。使用此區域的位置 可進一步用來嘗試非法擷取該存取資訊，為了避免含有存 取資訊與不含存取資訊之區域間雜訊等級的差異，僅指定 貝訊載體中特定區域的存取資訊，但也在其他區域中寫入 虛擬資訊。此資訊稱為虛擬資訊，因其不包含任何有關存 取資訊的資訊。觀察資訊載體的信號時，將無法察覺存取 貢訊或虛擬資訊間的差異’ 0為只有預知存取資訊的確切 位置，才能擷取此存取資訊。因此，即可實現防止非法讀 取資訊載體上所具有或將要具有之使用者資訊之一改良複 製保護系統。 < 在根據本發明之資訊載體的一項具體實施例中，其中存 取資訊係儲存在根據預定格式的資訊載體中，該資訊載體 的特徵為虛擬資訊係儲存在根據該相同或相似格式的資訊 載體中。用語「格式」代表資訊(此例中為存取資訊與使用 者資訊）在資訊載體中儲存的方式。每一資訊必須根據特定 格式來轉換以使其適於記錄在資訊載體中。虛擬資訊在資 讯載體中儲存的格式係根據存取資訊所用的相同或相似格 式，如此，虛擬資訊之讀取信號雜訊等級的變更便會與存 取資訊之讀取信號雜訊等級的變更相似。這有助於使存取 資訊的確切位置更難判定。 在根據本發明之資訊載體的另一項具體實施例中，該資 訊載體的特徵為：該預定的第一區域係為由用於播放與/或 記錄資訊載體的裝i最初存取資訊載體時所存取的區域。 為了保持存取資訊的完整性，必須儘可能限制知道資訊載 9! I41.doc 1343564 體上存取貝Λ位置的人數。然而’要擷取該存取資訊，必 須預知該存取資訊的確切位置…防止將此有關位置镇 測的：貝λ洩路給製造播放根據本發明之資訊載體之裝置中 所用ic的半導體公司，可利用—定義良好的介面（可加入他 們自己的1C設計中並處理存取資訊的_)，將存取資訊的 位置按VERILOG程式碼的片斷供應給這些半導體公司。依 此方式’則不必通知半導體公司有關存取f訊的確切位 置。不必通知光碟機設計公司設計必須先存取此確切位置 一特疋時間然後再次繼續進行正常程序的光碟機會很有 利，因為通知就會洩露存取資訊的位置。為了能夠保密存 取資訊的位置，包含該存取資訊之預定的第一區域係為由 用於播放與/或記錄資訊載體的裝置最初存取資訊載體時 所存取的區域。因此，藉由處理存取資訊寫入播放裝置最 初存取資訊載體時無論如何必須存在的區域中，不用通知 1C或光碟機製造商即可讀取該存取資訊。這可進一步有助 於不必在說明根據本發明之資訊載體的標準規格中提及存 取資訊的位置。此位置資訊只會保留在VERIL0G程式碼 中。可就這點所使用的區域類型如：TOC(目錄）區域、DI(光 碟資訊）區域、MKB(媒體鍵方塊）區域或可儲存其他存取或 複製控制資訊的其他位置》 在根據本發明之資訊載體的另一項具體實施例中，該資 訊載體的特徵為該資訊載體包含使用者資訊、埋入該使用 者資afl中的存取資訊。將存取資訊埋入使用者資訊中，< 打消竄改存取資訊的念頭’因為修訂（部分）存取資訊可能會 9lHl.doc 1343564 意外移除或毀損使用者資訊。數種用於埋入資料的技術係 為本技術中已知，例如，Ken C. Pohlmann所著「數位聲訊 原理（Princ 丨 pies of Digital Audio)」，第四版，2000年，第 67 8-680頁。在這些技術中，係在資料信號中應用顫化與雜 訊成型以使用埋入資料替換數個最低有效位元。 在根據本發明之資訊載體的另一項具體實施例中，該資 訊載體的特徵為存取資訊係儲存在該資訊載體的側面通道 中。將存取資訊儲存在側面通道中，可進一步阻撓擷取此 資訊。可就這點所使用的側面通道如：資訊係儲存在擺動 磁軌中按徑向位置調變之凹洞/標記中的「擺動通道」，如 CD-R與CD-RW光碟中所使用的；資訊係儲存在擺動磁軌中 按正切位置調變之凹洞/標記中的「擺動通道」，如藉由時 基調變或凹洞偏移；藉由調變凹洞形狀所建立的側面通 道’如所謂「有限多層（Limited Multilevel)」技術中所使用 的’如國際專利申請WO 00/57416 A1(PHN 17.369)中所述 此凹’同开> 狀可以不同的方式調變，例如藉由調變凹洞深度 或凹洞寬度，但也可以藉由建立梨形凹洞或狗骨頭形狀位 元；使用特殊位元串所建立的側面通道。原則上，與實體 參數的每一個誤差（會造成可偵測的類比信號）都可以用來 建立類比側面通道。另外，採用數位側面通道時，還可以 使用通道調變。 在另一項具體實施例中，資訊載體進一步包含「永久資 訊與控制（Permanent Informati〇n & c〇ntr〇1)」資料⑼c) 帶，存取資訊係儲存在該PIC帶中。在此pic帶中，儲存了 9ll41.doc 1343564 有關資sfl載體的一般資訊與其他各種資訊。這所謂的pIC資 讯可儲存在預先記錄的凹洞/平面（或標記/平面）中，但此資 汛也可以儲存在以頗高的頻寬信號按徑向調變之預先記錄 的高頻調變（HFM)溝槽中。此PIC帶可用在稱為藍光（BluRay) 光碟的新型光學資訊載體中。在另一項具體實施例中，該 資訊載體係為唯讀光學資訊載體，如DVd_r〇m光碟或 BluRay-ROM光碟。存取資訊可以儲存在，例如，pic帶的 預定區域中，虛擬資訊則可儲存在pic帶的其他區域中。 在另-項具體實施例中’預定的第一區域位置係隱藏在 · 資訊載體中。此位置在例如包含擺動之預製溝槽的資訊載 體中，可以隱藏在擺動之預製溝槽的徑向偏轉中。 在另一項具體實施例中，該資訊載體進一步包含一包含 代表該預定第一區域位置之位置位元的特別區域。該位置 位元可以按參數變化且其變化可利用積分债測來制而儲 存在，例如’該資訊載體中。例如’纟包含pic帶之資訊載 體的例子中，HC帶令存取資訊的位置參考係儲存在該資訊鲁 載體中。在該HC帶中，具有含位址單元號碼（A·)的主要 資料通心這些细可用來代表PIC帶中存取資訊的開始位 置。為了阻撓非法掏取存取資訊，具有可將存取資訊隱藏 於此通道㈣中的方法。例如’可就這點而使用展頻技術。 在技術中’可以藉由特殊的方式求取讀取信號的積分 而賴隱藏的存取資訊。有關展頻技術，請參考，例如，·謂 : 所著「數位調變與編碼(Digitai M〇duiati〇n —㈤㈣」，第 頁及其中參考f料。有關積分頂測請參考例如， 9114 丨.doc 1343564
Jan W.M. Bergmans所著「數位基頻傳輸與記錄⑴丨以⑷ Baseband Transmission and Recording)」，第 122-129 頁 ° 在 展頻技術中’會使用展頻調變故意使信號頻寬比較大。該 調變信號可以使用積分偵測方法來偵測，例如使用假設極 大機率接收器。 本發明進一步有關一種用於讀取根據本發明之資訊載體 資訊的裝置，該裝置包含：一用於讀取該資訊載體之使用 者資訊與存取資訊的讀取單元，及用於按照該存取資訊來 存取該使用者資訊的存取控制裝置。 【實施方式】 圖1顯示根據本發明之資訊載體的第一具體實施例。資訊 載體1呈現包含具有徑向擺動之固^寬度螺旋溝槽2的磁軌 圖案這些5兒明内谷尤其係用於眾所皆知的標準化匚〇_艮光 碟中。為了清楚明瞭之故’螺旋間距與徑向擺動均已明顯 誇，。—般而t，螺旋路徑的連續f曲間距-般在 的等級之間。在此圖中，顯示此資訊的兩個可能具體實施 例，其中存取資訊係儲存在擺動的通道中’如放大的盒3 中。在這些實施中，該資訊或實趙參數係健存在資訊載體 的引入區⑽d_ln)卜資訊載體的引人區是資訊載體上位於 包含使用者資訊之區域前的一個區域。磁軌U顯示以磁軌 的寬度變化來儲存存取資訊的溝槽β此變化具有以參考號 :二表的特定長度。'吏用標準裝置中用於讀取記錄載體 (如CD或DVD光碟機）的追蹤信號可以 π。私缸， 錢取3己錄載體的資 。 .2顯示以磁轨和平均令線5的偏向形式儲存存取 9ll41.doc 1343564 :貝Λ的磁軌。此類偏向磁軌’ 一般稱為擺動，係用於不同 的枯準化光學記錄載體’如CD-R光碟與DVD+RW光碟。其 他:貝讯請見美國專利4,972,40 1(=ΡΗΝ 9666)。 在此具體實施例中，定義了引入區中用於保持存取資訊 的預定區域與另一個用於保持虛擬資訊的區域。此存取資 訊可用來，例如’解密資訊載體中儲存的使用者資訊。 另—項具體實施例如圖2所示，其中存取資訊與虛擬資訊 係儲存在資訊載體的PIC帶中。在此具體實施例中，資訊載 體包含所謂的「永久資訊與控制（Pernianent
Information &
Control)」資料（!>1(：)帶„在此pic：帶中，儲存了有關資訊載 體的一般資訊與其他各種資訊。依此方式，即可建立具有 足夠容量與資料速率之預先記錄資訊的資料通道。在此具 體貫施例中，PIC資訊係儲存在預先記錄的凹洞/平面（或標 s己/平面）中’但此資訊也可以儲存在以頗高的頻寬信號按徑 向》周隻之預先記錄的咼頻調變（HFM)溝槽中。由於資訊係 健存在擺動通道的事實，因此可以建立一埋入通道。圖2 顯示包含PIC帶之資訊載體的配置。最接近載體中心的資訊 載體區域稱為内部區域（ΙΑ)6 »内部區域旁邊是夾住資訊載 體以穩定旋轉之播放裝置所使用的夾合區域（CA)7。夹合區 域旁邊是轉變區域（TA)8。夹合區域之後是資訊區域（IA)所 在。此資訊區域包含資訊帶（IZ)與叢發切割區域（BCa)9。 叢發切割區域可用來在完成製裎後新增資訊載體的資訊。 如果是可再寫光碟’則可利用高功率雷射系統或初始器寫 入BCA-程式碼。資訊帶（ιζ)包含引入帶（LI)、資料區域丨2、 9114l.doc 1343564 及引出帶（L0)13。引入帶包含PIC帶10及其餘的引入帶η。 在此具體實施例申，存取資訊儲存在PIC帶的預定區域 中；PIC帶的其他區域包含虛擬資訊。此虛擬資訊的寫入格 式與存取資訊相同。 為了能夠讀取存取資訊’可以利用特定方法擷取PIC帶中. 存取資訊的位置參考。在此具體實施例中，此方法如下。 PIC帶包含具有位址單元號碼（Aun)的主要資料通道。這些 AUN可用來代表PIC帶中存取資訊的開始位置。這在擺動通 道t號對料k號（HF -通道）鎖定時是可行的。一個位址是 4位元組（不含ECC位元組^由於PIC帶只位於資訊載體的一 小部分’因此只有有限數量的32位元最低有效位元（lsb)會 在pic帶之内變更（一般只有最前面的16個lsb)e這16個位元 足夠決定PIC帶之内的位置。PIC帶可延伸超過約2000個磁 轨；假設存取資訊只存在於20個連續磁轨，則此存取資訊 的開始位置可由使用者資訊的AUN來決定。然後，例如，· 使用未拌碼的調變’可將此Aun最前面的16個lsb定位在整 個pic帶上◊因此，在到達PIC帶中的隨機位置時，即可讀 取AUN最前面的丨6位元、跳到存取資訊的開始位置、及讀 取存取資訊。依此方式，可進一步在pic帶中隱藏存取資訊 的確切位置，因其只位於此頻帶中的特定位置，而非遍及 整個頻帶。 圖3顯示根據本發明之資訊載體的另一項具體實施例，其 中才曰出存取資訊在ρΙ(：帶中的確切位置。在此具體實施例 中，資訊載體包含四個鍵框14。在這些鍵框令，存在著31 9U4l.doc •13· 1343564 個同步框，編號為0到30。在同步框第3、7、1 1、15、19、 23及27號（以參考號碼1 5代表）中，會儲存代表存取資訊確切 位置的8位元數字。在存取資訊係按參數變化且其變化可以 利用積分偵測來偵測而储存在資訊載體的例子中，可以使 用此8位元數字變更存取資訊的確切位置。然後，例如，此 8位元數字可以代表偵測組成存取資訊的位元所應該使用 的種值與置換。 圖4顯示用於讀取資訊載體存取資訊之裝置的具體實施 例。該裝置包含可讀取記錄載體丨之使用者資訊與存取資訊 的讀取單元。該讀取單元包含：可掃描磁轨及產生對應於 記錄載體實體標記之讀取信號的讀取頭4丨；及可將讀取信 號翻澤為位元序列的翻譯單元42 ,如可在CD系統中解碼的 EFM解碼器。此位元序列輕合至可恢復資訊及校正可能錯 誤的錯誤校正單元43，如CD系統中的CIRC校正器，此恢復 的：貝Λ耦合至可控制資訊存取的存取控制裝置47。讀取存 取資訊可供存取控制裝置47的輸出48進行進一步處理之 用°在讀取期間’可由—般類型的词服單元44將讀取頭41 定位在磁軌上，記錄載體則由馬達單元45來轉動^資訊讀 取係經由控制器46來控制，該控制器可控制馬達單元45、 伺服早tl 44及錯誤校正單元43，並可配置以接收如經由一 介面至存取控制裝置47的讀取指令。 存取資訊的讀取進行如下。存取控制裝置會tf取包含存 取資訊的預定第1域，如PIC帶。使用存取資訊，例如可 解密已加密之使用者資訊的解㈣，即可存取使用者資 9U41.doc •14- 1343564 訊。在資訊栽體並不包含存取資訊或裝置並無法讀取存取 資訊的例子中，會拒絕資訊載體且會禁止使用者資訊的存 取0 圖5顯示使用存取資訊以存取使用者資訊的具體實施 例。圖中顯示使用’例如，圖4所示的裝置從資訊載體丨中 讀取使用者資訊。在谓測模組18中會偵測存取資訊η。谓 測模組知道存取資訊的仙位置，或_模組能夠㈣此 位置因其熟悉哪裡是表示資訊載體上具有存取資訊的位 置位元。這些位置位元可以使用，例如積㈣測來债測。 使用此偵測的存取資訊，可在模組19中計算解密鑰。可以 使用隨機數字2〇作為此計算的額外輸人。此數字可以是隱 藏在資訊載體中的數字，不過也可以由裝置的使用者輸 入。在解岔杈組21中會使用此計算的解密鑰來解密使用者 資訊。在解密使用者資訊後，會進一步處理或輸出此資訊。 這可以使用正確存取資訊的偵測為條件，模組丨8、^及以 可供應給VERILOG程式碼的ic製造商。因此，不必公開存 取資訊偵測或解密鑰計算的資訊.，因這都發生在veril〇g 方塊2 2之内。 儘官本發明已參考上述的具體實施例來說明，但應明 白，為了達成相同目的，也可以選擇使用其他具體實施例。 因此’本發明的範疇並不限於上述的具體實施例，而是也 可以適用於所有種類的資訊載體、唯讀、寫入一次或可再 寫類型的載體。本發明的範疇另外還不限於特定種類的存 取資訊。所有是存取資訊或可作為存取資訊的資訊，即用 9II41.doc 1343564 儲存在或將要健存在根據本發明之資訊載體資訊中 的使用者資訊的資均在本發明的範脅内。本發明的範 4另外還不限於特定的埋 通道技術或特定的（隱藏）側面 广。所有可μ來_=#訊的技術與通道均在本發明的 範嘴内。
此外’請注意，用語「包含」在本說明書（含申請專利裹 圍）中使用時’在於具體說明所具有的指定特色、整數、歩 驟或元件，但並不排除可具有或附加一或多個其他特色: 整數、步驟、元件或其中群組。還有，也請注意申请專 利範圍中元件前的料「―」並不排除具有複數個此類元 件。此外’任何參考符號並不會限制申請專利範圍的範脅； 本發明可以利用硬體與軟體來實施，且 硬體的相同項目來代表。此外，本發明存在於::與： 新穎特色或特色組合。
本發明可以總結如下：本發明有關用於保持使用者資訊 的資訊載體，#資訊賴包含用於存取使用者資訊的存取 資訊’該存取資訊係儲存在該f喊體之職的第一區域 中。該資訊載體進-步包含至少—與該第一區域不同的另 -個區域，該另一個區域包含虛擬資訊。本發明係根據讀 取信號的雜訊等級在隱藏存取資訊的區域中會稍微增加的 觀點。為了避免含有存取資訊與不含存取資訊之區域間雜 訊等級的差異，僅指定資訊載體中特定區域的存取資訊， 但也在其他區域中寫入虛擬資訊。因此，即可實現防止非 法讀取資訊載體上所具有或將要具有之使用者資訊的改良 91141.doc 16 1343564 複製保護系統。 【圖式簡單說明】 參考下文中詳細說明的具體實施例即可明白本發明 些及其他觀點。 的咬 圖式中： 圖1顯示根據本發明之資訊載體的第—具體實施例， 圖2顯示根據本發明之資訊載體的第二具體實施例，其中 存取資訊與虛擬資訊係儲存在PIC帶中，
匕圖3顯示根據本發明之資訊載體的第三具體實施例，其中 指出存取資訊在PIC帶中的確切位置， 圖4顯示用於讀取資訊恭雜在敌杳 只私貞Λ戟涠仔取貝讯之裝置的具體實施 例， 圖5顯示使用存取資訊以存取使用者資訊的具體實施例。 【主要元件符號說明】 1 資訊載體
Μ、1.2 磁轨 2 螺旋溝槽 3 盒 6 内部區域 7 夹合區域 8 轉變區域 9 叢發切割區域 10 PIC帶 11 引入帶 9114j.doc -17- 貧料區域 引出帶 鍵框 同步框 存取資訊 偵測模組 模組 隨機數字 解密模組 VERILOG 方塊 讀取頭 翻譯單元 錯誤校正單元 伺服單元 馬達單元 控制器 存取控制裝置 輸出 -18-

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1343564 第093103755號專利申請案 中文申請專利範圍替換本(99年9月）, 十、申請專利範圍： 1. 一種用於保持使用者資訊（16)的資訊裁體⑴，該資訊載 體包含用於存取該使用者資訊的存取資訊（1 ^，該存取資 汛係儲存在該資訊載體之一預定的第一區域中，其特徵 為，該貧訊載體進一步包含至少一與該第一區域不同的 另一區域，該另一區域包含虛擬資訊，其特徵為·· 。亥存取寅汛（1 7)係按參數變化而儲存在該資訊載體（J) 中，且其變化可利用積分偵測來偵測。 2. 如申請專利範圍第！項之資訊載體，其中該存取資訊（⑺ 係儲存在根據一預定格式之該資訊載體十，其特徵為， 該虛擬資訊係儲存在根據該相同或相似格式之該資訊載 體中。 3. ^申請專利範圍第_項之f訊載體，其特徵為，該預 疋的第-區域係為由一用於播放與/或記錄該資訊載體⑴ 的裝置最初存取該資訊載體時所存取的區域。 4. 如申請專利範圍第3項之資訊載體，其特徵為該預定的 第-區域係為目錄區域、光碟資訊區域或媒體鍵方塊區 域。 5. 如申請專利範圍第_項之f訊載體，其特徵為，該資 載組包έ 6亥使用者資訊（16)，該存取資訊（1 7)係埋入該 使用者資訊中β 6. 如申請專利範圍第！或2項之資訊載體，其特徵$，該存 取資。fl (1 7)係儲存在該資訊載體之—側面通道中。 7. 如申請專利範圍第6項之資訊載體，其特徵為，該側面通 91141-990909.doc 1343564 道係為一實體側面通道，例如一擺動的預製溝槽 8. 如申請專利範圍第5項之資訊载體，其特徵為，該資訊載 - 體進一步包含一永久資訊與控制（pic)資料帶（10)，該存 取資訊（17)係儲存在該PIC帶t。 9. 如申請專利範圍第8項之資訊载體，纟特徵為該存取資 訊（17)係儲存在該PIC帶（1〇)中預先記錄的凹洞-平面或預 先記錄的高頻調變溝槽中。 10. 如中請專利範圍第8項之資訊載體，其特徵為，該存取資 讯（17)係儲存在該PIC帶（1〇)之一預定區域中該虛擬資 訊係儲存在該PIC帶之其他區域中。 11. 如申請專利範圍第9項之資訊載體，其特徵為，該存取資 訊係儲存在該PIC帶之一預定區域中，該虛擬資訊係儲存 在該PIC帶之其他區域中。 12. 如申請專利範圍第1或2項之資訊載體，其特徵為，該資 喊體包含該使用者資訊⑽’該光學資訊载體係為一唯 • 讀光學資訊載體，如一 DVD-R〇M光碟或一BluRay-R〇M 光碟。 13. 如申請專利範圍第丨項之資訊載體，其特徵為該預定之 第一區域的位置係隱藏在該資訊載體中。 14. 如申請專利範圍第13項之資訊載體，其特徵為，該資訊 載體（1)進一步包含一擺動的預製溝槽（2)，該預定之第一 區域的位置係隱藏在該擺動之預製溝槽的徑向偏轉中。 15. 如申請專利範圍第13或14項之資訊載體，其特徵為，該 資訊載體進一步包含一包含代表該預定第—區域位置之 9H41-990909.doc -2· 1343564 位置位元的特別區域。 種用於4取如申請專利範圍第1或2項之資訊載體⑴之 :汛的裝置’其中’該裝置包含：-用於從該資訊載體 只取使用者貧訊與存取使用者資訊（⑺的存取資訊（】7) 之°賣取早疋⑷、47)，該存取資訊（17)儲存於在該資訊載 體預定的第一區域，該資訊載體包括至少一與該第 區域不同之深層區域，該深層區域包括虛擬資訊’及 用於按照該存取資訊（17)來存取該使用者f訊⑽的存 取&制裝置（47)，其特徵為，一須側裝置（18)，其積分伯 測參數變化，其用於儲#在& % π 1 q、 、 ^ 於储存存取貧讯（〗7)以獲得該存取資 讯〇 丨7.如申請專利範圍第16項之裝置，其特徵為，該摘測裝置⑽ 適用於偵測代表該預；t第—區域位置之位置位元。 專利範圍第17項之裝置’其特徵為，該存取控制 、置（丨9、47)與該偵測裝置（1 8)係實施於—Verii^ 碼中。 91141-990909.doc
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CN1751346B (zh) 2010-06-09
US20060064601A1 (en) 2006-03-23
TW200428364A (en) 2004-12-16
ES2383297T3 (es) 2012-06-20
KR20050106012A (ko) 2005-11-08
SI1597728T1 (sl) 2012-07-31
JP4415055B2 (ja) 2010-02-17
PT1597728E (pt) 2012-05-07
CN101266816B (zh) 2011-01-12
AR043198A1 (es) 2005-07-20
US8351313B2 (en) 2013-01-08
DK1597728T3 (da) 2012-06-11
US20140149661A1 (en) 2014-05-29
US20130100784A1 (en) 2013-04-25
WO2004075188A1 (en) 2004-09-02
EP1597728B1 (en) 2012-02-29
US20120113788A1 (en) 2012-05-10
MY150127A (en) 2013-11-29
JP2006518526A (ja) 2006-08-10
US9720622B2 (en) 2017-08-01
CN1751346A (zh) 2006-03-22
JP2009016036A (ja) 2009-01-22
EP1597728A1 (en) 2005-11-23
US8320224B2 (en) 2012-11-27
ATE547791T1 (de) 2012-03-15
KR101120554B1 (ko) 2012-03-09
US8644118B2 (en) 2014-02-04
JP4415007B2 (ja) 2010-02-17
US20110107111A1 (en) 2011-05-05
CY1113189T1 (el) 2016-04-13
US7889612B2 (en) 2011-02-15
CN101266816A (zh) 2008-09-17

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