TW200529211A - Information access control for optical media - Google Patents

Information access control for optical media Download PDF

Info

Publication number
TW200529211A
TW200529211A TW094103029A TW94103029A TW200529211A TW 200529211 A TW200529211 A TW 200529211A TW 094103029 A TW094103029 A TW 094103029A TW 94103029 A TW94103029 A TW 94103029A TW 200529211 A TW200529211 A TW 200529211A
Authority
TW
Taiwan
Prior art keywords
information
data
patent application
scope
optical
Prior art date
Application number
TW094103029A
Other languages
English (en)
Inventor
Charles R Weirauch
Edward S Beeman
Christiaan Steenbergen
Dirk Erickson
Thomas L Pratt
Original Assignee
Hewlett Packard Development Co
Dell Products Lp
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 Hewlett Packard Development Co, Dell Products Lp filed Critical Hewlett Packard Development Co
Publication of TW200529211A publication Critical patent/TW200529211A/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • 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
    • 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00115—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the record carrier stores a unique medium identifier
    • 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
    • G11B20/0021—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
    • G11B20/00217—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
    • G11B20/00253—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
    • G11B20/0026—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 as a barcode
    • 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
    • G11B20/0021—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
    • G11B20/00217—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
    • G11B20/00253—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
    • G11B20/0026—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 as a barcode
    • G11B20/00268—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 as a barcode said barcode being recorded in a burst cutting area [BCA]
    • 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
    • G11B20/0021—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
    • G11B20/00217—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
    • G11B20/00253—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
    • G11B20/00347—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 wherein the medium identifier is used as a key
    • 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
    • G11B20/0021—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
    • G11B20/00217—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
    • G11B20/00253—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
    • G11B20/00355—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 record carrier having a label that provides the key
    • 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
    • G11B20/0021—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
    • G11B20/00217—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
    • G11B20/00253—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
    • 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
    • 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
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00739—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction is associated with a specific geographical region
    • 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
    • G11B20/00876—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy wherein physical copy protection means are attached to the medium, e.g. holograms, sensors, or additional semiconductor circuitry
    • 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
    • G11B23/30—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 with provision for auxiliary signals
    • G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/17—Card-like record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
    • G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Description

200529211 九、發明說明： 【韻^明戶斤屬泛_ 4支彳标$員】 發明的技術領％ 本發明係大致有關用於資訊儲存的光學媒體，且更確切 5來說，本發明係有關用以讀取用於資訊儲存之光學媒體的 驅動機。 、
10 15
C先前技系餘]j 曼懇的技術背景 隹杲些信況中 Μ々、〜于 肪尤哚或光學卡）的。 動機係設計為拒絕對不相容光學媒體上的資料進行疒取·、、區 例如，某些具有娛樂内容的光碟具有地區限制，且子Q 地理區域販售的驅動機可拒絕讀取並非在該特定+特疋 販售的媒體。舉另-個實例來說，為了防止盜拷^理區域 動機可拒絕讀取不適當媒體上的資料。例如I °題，驅 資料僅能合法地儲存在唯讀媒體上，且如果哼=些頬型的 在可寫人媒體Jl的話，驅動機便拒絕進行存取；4係餘存 因此，需要能控制對儲存在光學媒體 的動作。 、貝矾進行存取 t發明内容】 0 概要說明 一驅動機拒絕從一光學媒體的一第一 非所需資訊存在於該媒體的—第二表面上i傳輪資訊，除 々簡要說明 第1圖展示出當中可實行本發明的一種例示系、 200529211 第20為展示於第丄圖中之光碟的平面圖，而在該光碟的 一外部表面上有二種資料實例。 第3圖為一種例示方法的流程圖。 C實施方式】 5 致隹實施例的1羡>說明 第1圖以及第2圖係使用光碟作為實例。本發明可同樣地 應用在其他光學媒體中，例如光學卡。在第i圖中，驅動機 100包括驅動機控制器102、光感測器陣列1〇4、物鏡1〇6、 以及光碟媒體108。該物鏡把自該光碟之一表面反射的雷射 10光聚集到該光感測器陣列上。該驅動機控制器接收來自該 光感測器陣列的信號，並控制物鏡1()6的焦點。主機116把 貝料傳送到該驅動機控制器，並接收來自該驅動機控制器 的貝料。該驅動機可為該主機的一部分，例如電腦系統或 娛樂系統中的内部驅動機。替代地，該驅動機可為該主機 15的週邊設備，並透過纜線與網路、或以無線方式傳輸資訊。 第1圖中光碟媒體的外部表面110具有一保護外層，以及 至少一内部資料表面（112、114)。如果有多個資料表面的 話’那麼最靠近該物鏡的内部資料表面便具有部分反射 性。在第1圖中，係把物鏡106說明為在内部資料表面112 20 上具有一焦點。元件編號106A以及106B代表物鏡106係設 置在二個替代位置中，因而分別地使該焦點設置在内部資 料表面114上或者（選擇性地)設置在該外部表面110上。 對某些媒體來說，需要有輔助資訊，且可由驅動機來讀 取此輔助資訊，以便能從該媒體讀取至少一資料表面上的 200529211 資料，並且把該資料傳送到一主機。當主機116對要求輔助 資訊存在的光碟媒體要求至少一内部資料表面（112、114) 的資料時’驅動機控制器1 〇 2便拒絕對該主機提供其要求的 肓料，除非該驅動機可讀取另一個表面（110、112、114) 5上的所需輔助資訊。例如，該驅動機拒絕從資料表面114 外部傳輸資料’除非所需資訊存在並且可在資料表面112 上讀取該資料。 該驅動機可先驗地(a piori)知道輔助資訊是需要的，或 者該驅動機可從該媒體判定是否需要輔助資訊。例如，可 ίο把輔助資訊需要指定為一種標準的一部分，或者可由該驅 動機控制器中的韌體來判定，或者可由該媒體之至少一表 面上的資訊來指定。另一種替代方案是，可編程該驅動機 以便當它正在讀取特定媒體時，能經常檢查所需資訊。例 如，每當正在讀取可寫入媒體時，該驅動機可自動地判定 15所需的輔助資訊是否存在。替代地，至少一内部資料表面 (112、114)上的資訊包括指出需要輔助資訊出現在至少一 其他表面且該輔助資訊必須由該驅動機讀取的一項指示。 例如’内部資料表面112上的資訊可指出需要輔助資訊出現 在忒外部表面11〇上且該外部表面上的該輔助資訊必須要 20由，亥驅動機來讀*。例如，替代地，内部資料表面山上的 貝汛可指出需要輔助資訊出現在内部資料表面114上，且該 外邛表面114上的該輔助資訊必須要由該驅動機來讀取。 輔助貧訊可為-單_符號、或多個符號、或可為資料。 5 ;也如果係由δ亥媒體表面上的資訊來判定輔助資訊需 200529211 求的居，指出輔助⑥ 細哼％ 孔而未的資訊可為一單一符铐、七夕 個付唬、或可為 早付唬、或多 域的―符號n 力資訊可例如為代表-地理區 碟片所有巧太:可例如為指出複製控制資訊的資料。一 可變化=:辅助f訊可均相同，或者該輔助資訊可為 序號。為各補__ 一獨特 的芊此特竹广貝岭貧訊可或不可指定該輔助資訊 旧示二特倣。例如，一 未指定資訊必句山*唬出現在-表面上的狀況可指出 現可觸料#/、？見在另—個表面上。例如，—符號的出 10 15 控制％ = Γ制器域找尋_資訊，其具有驅動機 喊中界定的格式與位置。例如，替代地，内部表 二：貝Λ可指定必須要出現一特定符號(例如一商標或 5 丁早）或者可指定必須要出現具有特定特徵的資料 (例如具有指定位元或數字數目的—序號，或者資料表面上 之資料的特定核對合）。 囡另展示出弟1圖的光碟108，並且展示出外部表面 110上的二種輔助資料實例。該碟片具有安裝孔2〇〇以及外 、、彖202。内部表面（第丄圖，112、114)上的資料係常駐在内 徑204以及外徑2〇6之間的一區域中。第2圖展示出呈條碼 形式的二種輔助資訊實例··外部表面110上的資料（208、 21〇)。條碼資料208係位於一内部表面上之資料的外徑206 之外。條碼資料210則位於一内部表面上之資料的内徑204 中。條碼資料（208、210)的格式並不重要。條碼資料208 係說明編碼在條狀物寬度中的資訊實例。條碼資料21〇則說 明編碼在條狀物間隔中的資訊實例。 20 200529211 第2圖展示出呈條碼方式編碼的輔助資訊，但大致上來 說，唯一的需求是可由驅動機來讀取該資訊。任擇地，可 利用多種不同方式來實現可檢測的標示或符號。例如，針 對外部表面來說，可把標示或符號附貼在該外部表面上， 5 例如利用可直接印製在該外部表面上的一標籤（例如利用 喷墨印表機或利用絲網印刷方式）、可蝕刻在該外部表面上 (利用化學方式或者利用高功率雷射），或者可在該外部表 面的一部分上塗敷隨後可在暴露於界定標示或符號的型樣 下利用化學方式顯影出來的一種光感應材質，或者可在該 10 外部表面的一部分上塗敷一種不透明或反射性的材質，且 可移除該塗敷層的部分（利用化學方式或者利用高功率雷 射使其脫落）。於2003年7月10提申的美國專利申請案號 10/618,115揭露了用於光學儲存媒體上光學可檢測標示的 各種不同替代方案，該美國專利申請案係以參考方式併入 15 本發明中說明。 要注意的是，以讀取該外部表面上的輔助資訊來說，可 能不必使該物鏡聚焦在該外部表面上。該外部表面上的輔 助資訊（符號或資料標示）可能比内部資料表面上的資料標 示大上許多，因此即便是處於失焦狀態，也可能可以讀取 20 該外部表面上的資訊。 輔助資訊或指明輔助資訊需求的資料亦可出現在一内 部資料表面上。輔助資訊或指明輔助資訊需求的資料可為 已錄製或浮雕式使用者資料的部分，或者可在該已錄製或 浮雕式使用者資料中編碼，或者可常駐在控制資料結構 200529211 中’或者可編碼到該媒體之内部表面的物理性質中，例如 溝槽擺動（groove wobble)。例如，把第一資料編碼在第二 資料中的一種方法是把資料編碼在錯誤校正區塊的性質 中°例如’請參見美國專利證號6,064,748以及6,278,386, 5該等二案係以參考方式併入本發明中說明。可常駐在控制 貝料結構中之資料的一種例示方式是控制區塊中的資料。 請參見美國專利證號6,33〇,no,其係以參考方式併入本發 明中說明。-控制區塊中的二位元欄位可用來指明辅助資 料需求。例如，替代地，某些光碟媒體具有溝槽與地塊 1〇 (lands)’而資料係編碼到該等溝槽的正弦曲線放射狀變化 部分中。例如，某些浮雕式DVD媒體可編碼溝槽擺動中的 資料區塊位址’其稱為預凹槽地址（Address h Pre-g雜e、ADIP)。内部資料表面中的資料可指定在不同 内部資料表面之溝槽擺動中編碼的輔助資料。例如，内部 15資料表面上的資料可此可以指定在溝槽擺動中編碼的輔助 資料’其僅出現在娛樂内容提供者的浮雕式資料層中。可 寫入媒體無法使所需的輔助資料在溝槽擺動中編碼，且因 此無法從可寫入媒體讀取該娱樂資料。 第3圖展示出一種例示方法。在步驟3〇〇中，在可從— 2〇定表面傳輸資訊之％，一驅動機將判定是否需要輔助資 訊。可能不需要使用步驟300作為一種明確的方法步驟，因 為輔助資訊需求可能來自媒體以外的其他事物。例如，可 把輔助資訊需求指定為用於所有媒體的一種標準部分。在 步驟302中，如果係由該驅動機讀取所需輔助資訊的話，那 10 200529211 麼在步‘3(M中，該驅動機將在該驅動機外部從—碟力表面 專矜資料在步驟3〇2中，如果無法由該驅動機讀取所需輔 助貧訊的話，那麼在步驟306中，該驅動機便拒絕在該驅動 機外邛k该碟片表面傳輸資料。 要主的疋’從該_動機向外傳輸的資料可為類比資 Λ例如以一種消費性娛樂媒體來說，該驅動機輸出信 號可為頒比g汛或視訊。以此種媒體來說，該驅動機可拒 &提供-類比輸出信號’除非可從該媒體的_表面讀取所 需的輔助資訊。 1〇 【圖式簡單說明】 第1圖展示出當中可實行本發明的一種例示系統。 第2圖為展示於第1圖中之光碟的平面圖，而在該光碟的 一外部表面上有二種資料實例。 15 【主要元件符號說明】 第3圖為一種例示方法的流程圖。 100 驅動機 114 内部貧料表面 102 驅動機控制器 116 主機 104 光感測器陣列 200 安裝孔 106 物鏡 202 外緣 106A 物鏡 204 内徑 106B 物鏡 206 外徑 108 光碟媒體 208 條碼貢料 110 外部表面 210 條碼貧料 112 内部資料表面 300- 」306 步驟 11

Claims (1)

  1. 200529211 十、申請專利範圍： 1 · 一種方法，其包含： 當一光學媒體之一第二表面上的所需資料無法讀取 時，由一驅動機拒絕從該光學媒體的一第一表面提供資 5 訊。 2_如申請專利範圍第1項之方法，其另包含： 從該第一表面讀取指出該第二表面上之資訊是需要的 B 資訊。 3_如申請專利範圍第1項之方法，其另包含： 10 4該光學媒體之一外部表面上的所需資料無法讀取 時，由該驅動機拒絕從該光學媒體的一資料表面提供資 訊。 4_如申請專利範圍第1項之方法，其另包含： 15 當該光學媒體之一第二表面上的所需資料無法讀取 時，由該驅動機拒絕從該光學媒體的一第一表面提供資 鲁訊。 ”貝 5_ 一種光學媒體，其包含： —第一表面，該第一表面具有指出一第二表面上的資訊 為需要的一項指示；以及 2〇 對應於該第-表面上該項指示之該第二表面上的資訊。 .如申請專利範圍第5項之光學媒體，其另包含： °亥第一表面為一内部資料表面；以及 5亥第二表面為一外部表面。 •如申請專利範圍第5項之光學媒體，其另包含： 12 200529211 該第一表面為一外部表面；以及 该第二表面為一内部資料表面。 8_如申請專利範圍第5項之光學媒體，其另包含： 口個忒等第一表面與第二表面為一内部資料表面。 5 9·如申請專利範圍第5項之光學媒體，其另包含： 該第二表面上的該資訊包含一條碼。 1〇.如申請專利範圍第5項之光學媒體，其另包含： • 财第-表面與第二表面中之至少_表面上的該資訊 包含一控制區塊中的資料。 11·如申請專利範圍第5項之光學媒體，其另包含： /等第纟面與第二表面中之至少一表面上的該資訊 包含編碼於溝槽擺動中的資料。 12.如申請專利範圍第5項之光學媒體，其另包含： 15 1 亥等第-表面與第二表面令之至少-表面上的該資訊 包含嵌入在其他資料中的資料。 鲁 13·如申請專利範圍第5項之光學媒體，其另包含： 該第二表面上的該資訊包含可變資訊。 14·如申請專利範圍第13項之光學媒體，其另包含： 2〇 科"表面上_資訊包含該光學㈣的-獨特識別 符。 I5·—種用於光學媒體的驅動機，其包含·· 二控制器，只有在可以—光學媒體之_第二表面上的所 需資料時’該控制器才於該驅動機的外部從該光學媒體 的一第一表面傳輸資訊。 丑 13
TW094103029A 2004-02-19 2005-02-01 Information access control for optical media TW200529211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/784,075 US20050185548A1 (en) 2004-02-19 2004-02-19 Information access control for optical media

Publications (1)

Publication Number Publication Date
TW200529211A true TW200529211A (en) 2005-09-01

Family

ID=34861400

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094103029A TW200529211A (en) 2004-02-19 2005-02-01 Information access control for optical media

Country Status (6)

Country Link
US (1) US20050185548A1 (zh)
JP (2) JP2005235381A (zh)
KR (1) KR20060042050A (zh)
CN (1) CN1658292A (zh)
NL (1) NL1028347C2 (zh)
TW (1) TW200529211A (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060072404A1 (en) * 2004-09-07 2006-04-06 Gage Donald B Method and system for managing data storage on optical media using scan-before-burn techniques
US7746746B2 (en) * 2004-11-16 2010-06-29 Hewlett-Packard Development Company, L.P. Optical media with control data in wobble
JP2007042152A (ja) 2005-07-29 2007-02-15 Toshiba Corp 追記形情報記憶媒体（透明基板上に形成された記録層を内側にして接着された構造を持つ記録形情報記憶媒体のディスク構造）、および情報再生方法または情報記録方法ならびに記憶媒体製造装置
US20080117791A1 (en) * 2006-11-20 2008-05-22 Atmel Corporation Optical media identifications
US8279731B2 (en) * 2009-07-09 2012-10-02 Lsi Corporation Preventing unauthorized use of optical discs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699342A (en) * 1994-02-07 1997-12-16 Mitsubishi Denki Kabushiki Kaisha Method of and device for recording and playing back an optical disk having a test playback region utilizing pits of minimum size for controlling the power of the laser
JPH0917119A (ja) * 1995-06-30 1997-01-17 Sony Corp データ記録媒体、データ記録方法及びデータ再生方法
JPH09106625A (ja) * 1995-10-06 1997-04-22 Victor Co Of Japan Ltd 光記録媒体及びその再生装置
CN1152311C (zh) * 1995-10-09 2004-06-02 松下电器产业株式会社 光记录装置和光重放装置
DE69611906T2 (de) * 1995-10-09 2001-06-21 Matsushita Electric Industrial Co., Ltd. Optische platte mit strichkode
JP3741294B2 (ja) * 1996-09-27 2006-02-01 日本ビクター株式会社 光ディスク及びその再生装置
JP2000066567A (ja) * 1998-08-25 2000-03-03 Victor Co Of Japan Ltd カード型ホログラム記録媒体とその再生装置
EP0997899B1 (en) * 1998-09-22 2005-05-04 Matsushita Electric Industrial Co., Ltd. Optical disk, method for reproducing additional information from optical disk, reproducing apparatus for optical disk, and recording and reproducing apparatus for optical disk
CN1465046A (zh) * 2001-06-29 2003-12-31 索尼株式会社 数据记录介质、记录介质的记录和/或再现装置及方法
JP3688628B2 (ja) * 2001-11-09 2005-08-31 株式会社東芝 信号処理方法及び装置、信号再生方法及び装置、記録媒体
JP2003233949A (ja) * 2001-12-06 2003-08-22 Ricoh Co Ltd 書き込み可能型光ディスク、光ディスク書き込み装置、媒体判定用プログラム、記録媒体、プログラム読み取り方法、及び情報処理システム
EP1586090B1 (en) * 2003-01-23 2012-03-21 LG Electronics, Inc. Recording medium with copy protection information formed in intermittent or alternate wobbled pits and apparatus and methods for forming, recording, and reproducing the recording medium

Also Published As

Publication number Publication date
NL1028347C2 (nl) 2008-07-22
CN1658292A (zh) 2005-08-24
JP2009026455A (ja) 2009-02-05
US20050185548A1 (en) 2005-08-25
JP2005235381A (ja) 2005-09-02
KR20060042050A (ko) 2006-05-12
NL1028347A1 (nl) 2005-08-22

Similar Documents

Publication Publication Date Title
US7379407B2 (en) Method and system for optical drive write strategies embedded in an optical medium
FR2912250B1 (fr) Systeme et procede pour integrer des informations de compatibilite d'unites optiques dans des supports optiques
TW200923928A (en) Method and apparatus for managing firmware of an optical storage apparatus
TWI298873B (en) Identifying optical disc properties from information read from label side of optical disc
JP2009026455A (ja) 光学媒体の情報アクセス制御
US6901043B2 (en) Scratch-off material layer applied on optical recording media
CN102867521A (zh) 具有光可检测标记的光存储介质
TWI288406B (en) Media labeling system
US7733754B2 (en) System and method for disc labeling
US20050147019A1 (en) Media control features for a compact disc
CN101950575B (zh) 防止光盘的非授权使用
US8154958B2 (en) Recording apparatus using control information and virtual reference information
TWI222629B (en) Recording/reproducing apparatus
US7659917B2 (en) Method for labeling optical disc
JP4315171B2 (ja) 光ディスクへの可視画像記録方法及び光ディスク記録装置
JP4464328B2 (ja) 光ディスク記録装置及び光ディスク記録システム
US20090116356A1 (en) Method for recording a visually detectable pattern on an optical record carrier, apparatus for recording a visually detectable pattern on a record carrier and instruction to be executed by the apparatus
CN101419825B (zh) 于光学记录载体上记录可视图样的方法及装置
EP1912210A4 (en) DEVICE FOR RECORDING AND REPRODUCING OPTICAL INFORMATION AND OPTICAL INFORMATION RECORDING MEDIUM
GB2449193A (en) Embedding optical drive compatibility information in optical media
JP2001307035A (ja) 記録再生装置
JP2004259364A (ja) 情報記録装置、情報記録方法、情報記録媒体及び情報再生装置並びに情報再生方法
CN101030391A (zh) 光盘
WO2007136082A1 (ja) 光ディスク記録システム、光ディスク記録装置及び光ディスク記録プログラム
TW201103010A (en) Method and device for discriminating light-sdribe disc