TW527560B - A portable data storage device - Google Patents

A portable data storage device Download PDF

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Publication number
TW527560B
TW527560B TW089106162A TW89106162A TW527560B TW 527560 B TW527560 B TW 527560B TW 089106162 A TW089106162 A TW 089106162A TW 89106162 A TW89106162 A TW 89106162A TW 527560 B TW527560 B TW 527560B
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TW
Taiwan
Prior art keywords
memory
flash memory
data
user
computer
Prior art date
Application number
TW089106162A
Other languages
English (en)
Inventor
Chong Seng Cheng
Original Assignee
Trek Technology Singapore Pte
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/12—Protecting executable software
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/85—Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices
    • 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
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G06F3/0605—Improving or facilitating administration, e.g. storage management by facilitating the interaction with a user or administrator
    • 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
    • G06F3/0629—Configuration or reconfiguration of storage systems
    • G06F3/0634—Configuration or reconfiguration of storage systems by changing the state or mode of one or more devices
    • 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
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device
    • G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/22—Safety or protection circuits preventing unauthorised or accidental access to memory cells
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
    • 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
    • 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
    • G06F3/0662—Virtualisation aspects
    • G06F3/0664—Virtualisation aspects at device level, e.g. emulation of a storage device or system
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/10—Programming or data input circuits
    • G11C16/102—External programming circuits, e.g. EPROM programmers; In-circuit programming or reprogramming; EPROM emulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Storage Device Security (AREA)
  • Information Transfer Systems (AREA)
  • Debugging And Monitoring (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Description

527560 (由本局填寫) 承辦人代碼 大 類 I P C分類
6 6 A B 本案已向： PCT 國（地區）申請專利，申請日期：2000.2.21案號：PCT/SGOO/，□有0無主張優先權 00029 有關微生物已寄存於： 寄存日期： 寄存號碼： ϋ - n n m - - - m m - —Kn T ---I (請先閱讀背面之注意事項再填寫本頁各欄) 經濟部智慧財產局員工消費合作社印製 k纸張尺度適用中國國家摞準（CNS ) A4規格（2】0X29»釐） ：\7527560 H： 五、發明說明（1 ) 本發明係關於一種攜帶式資料儲存裝置，特別係關於一 種電趨之攜帶式資料儲存裝置。 (請先閱讀背面之注意事項再填寫本頁) 習知資料儲存裝置概略分成兩大類。第一類為電子式固 態記憶體裝置例如唯讀記憶體（ROM)及隨機存取記憶體 (RAM)。此等記憶體裝置通常係嵌合於電腦内部。非預期為 可去除或可攜帶因而可用於不同的電腦例如允許資料由一 部電腦傳送至另一部電腦。 第二類型裝置為基於表面的資料儲存裝置，其中資料典 型係儲存於磁碟或磁帶表面◎表面儲存裝置例如磁碟及CD ROMs。此種資料儲存裝置需要機械驅動機構架設或耦合至 電腦俾允許儲存裝置的資料由電腦讀取。此外此種記憶體 裝置受到儲存裝置表面積所限，儲存裝置與由儲存裝置該 讀取資料之驅動機構的組合通常龐大及/或精緻，原因在於 驅動機構及/或儲存裝置内部需要活動部件。 經濟部智慧財產局員工消費合作社印製 根據本發明，提供一種攜帶式資料儲存裝置，包含一耦 合裝置用於耦合至一電腦序列匯流排，一介面裝置耦合至 耦合裝置，一記憶體控制裝置及一非依電性固態記憶體裝 置；記憶體控制裝置耦合於介面裝置與記憶體裝置間而控 制資料由記憶體裝置流至耦合裝置。 本發明之優點為經由提供一種攜帶式資料儲存裝置，其 包括一辆合裝置及一介面裝置、一記憶體控制裝置及一非 依電性固態記憶體裝置，可提供一種攜帶式資料儲存裝 置，其可耦合至具有一序列匯流排埠之電腦，及其不包括 活動部件或不需要機械驅動機構來由資料儲存裝置讀取資 4 本紙張尺度適用中國國家標準（CNS)八.1規格（2]ϋ>^;97公发） 527560 ’ ；·\7 _—_Β7_^__ 五、發明說明（2 ) 料。 較佳非依電性固態記憶體裝置可為讀/寫記憶體裝置例 如快閃記憶體裝置。 較佳當記憶體裝置為讀/寫記憶體裝置時，記憶體控制裝 置控制資料的流進及流出記憶體裝置。 典型資料儲存裝置進一步包含一手動作動開關可於第一 ί . I位置與第二位置間移動，第一位置致能資料之寫至記憶體 ( ! 裝置以及第二位置阻止資料之寫至記憶體裝置。 較佳記憶體控制裝置包括一唯讀記憶體，其儲存一程式 來控制記憶體控制裝置的操作。較佳記憶體控制裝置為微 控制器。 典型介面裝置包含一通用序列匯流排（USB)驅動器來介 於USB格式與PC格式間轉換資料，及耦合裝置包含USB 耦合裝置。 另外介面裝置包含 IEEE 1 3 94 (火線）協定驅動器，及耦 本紙張尺度適用中國國家標準（CNS)A·】規格（2.10x297公I ) (請先閱讀背面之注意事項再填寫本頁)
， 設 設 例 步 步 一 初 初 之 的的 置 置置 裝 ·，裝 裝 存 圖存 存 儲 塊 儲 儲 料 方料 料 資 意 資 資 之 示對 對 明 之商 者 發 置應 用 。 本 裝供 使 置 據 存體 端 裝根 儲軟 終 合明 料示 示 耦 說 資顯 顯 線明圖 式圖 圖 火說 附帶程 程 含單照 攜流 流 包簡參：為為 為及 置 之在中 12 3 以 裝 式現圖 圖圖； 圖； 合圖附 定 定 經濟部智慧財產局員工消費合作社印¾ 137 527560 五、發明說明（3 圖4為流程圖顯示資料儲存裝置的作業。 發明之詳細說明 圖1顯示一資料儲存裝置1 0其包括一 USB插頭i其係麵 合至USB介面裝置2。USB介面裝置2係耦合至微控制器3, U控制器係耦合至快閃記憶體4。微控制器3包括唯讀記 憶體（R0M)5，唯讀記憶體儲存一程式俾控制微控制器3的 作業。 微控制器3進行的作業包括比較使用者載入的通行碼與 儲存於快閃記憶體4的對應通行碼來決定使用者是否被授 權存取快閃記憶體4的内容。儲存於R〇M 5的程式也控制 資料的流進及流出快閃記憶體4，也情測記憶體裝置〗耦 合的電腦是否已經安裝軟體程式，該軟體程式係對應儲存 於快閃記憶體4的通行碼。微控制器3可自動控制由安裝 的軟體擷取通行碼來與儲存於快閃記憶體的通行碼比對俾 證明電腦使用者已經被授權存取或執行軟體。此外，儲存 於ROM 5的程式也允許由軟體供應商於快閃記憶體設定一 通行碼對應於供給使用者軟體所含的通行碼。典型地通行 碼係對應軟體的序號。 快閃記憶體4典型劃分為多個不同區塊或區段。典蜇快 閃記憶體被劃分為二區段且各區段有一獨特通行碼。若資 料儲存裝置1 〇被供給套裝軟體，則軟體序號可設定於一區 作為通行碼允許使用者存取及使用軟體。其他區典裂用於 健存使用者資料’可具有由使用者設定的分開通行碼。典 型通行碼可以加密形式儲存於快閃記憶體的牢靠位置。加 本紙張尺度適用中國國家標i]L(CNS)A·丨規格（2]ϋ X 297公釐） 6 (請先閱讀背面之;i意事項再填寫本頁) ;裝 經濟部智慧財產局員工消費合作a印製 527560 ：\： H7 五、發明說明（4 ) 密、解密、資料流控制及USB協定全部皆由微控制器3管 理。 微控制器3也包括隨機存取記憶體（RAM) 6，RAM為允許 微控制器3發揮功能的暫時儲存區。此外手動開關7耦合 於快閃記憶體4與微控制器3間。手動開關7可於第一位 置與第二位置間移動，於第一位置時使用者可將資料寫至 快閃記憶體4以及於第二位置時阻止資料被寫入快閃記憶 體4。 裝置1 0也包含USB插座8，其直接耦合USB插頭1且允 許其他USB裝置經由裝置1 0耦合至USB。例如若使用者希 望增加記憶體空間，第二記憶體裝置1 0之USB插頭1可連 結至USB插座8。 圖2為流程圖，顯示當軟體供應商意圖供給裝置作為軟 體的真品裝置時，軟體供應商對裝置1 0的設定程序。首先 裝置1 0的插頭1插入20電腦的USB插座。裝置10插入電 腦的USB插座後，於電腦與裝置1 0間建立通訊21。軟體 供應商預先讓操作員執行安裝軟體於電腦。由預先安裝的 軟體，因應預先安裝軟體要求操作員載入對應裝置1 0所供 給的軟體通行碼或序號，操作員選擇通行碼設定安裝2 2。 通行碼或序號隨後被加密2 6及儲存2 7於快閃記憶體4。 圖3為流程圖，顯示終端使用者對快閃記憶體4區段2 之初步設定通行碼。裝置1 0典型被供給驅動器軟體，該軟 體於設定裝置前由使用者載入電腦。為了設定區段2的通 行碼，使用者將裝置I 0插入20電腦的USB埠，且於電腦 本紙張尺度適用中國國家標準（CNS)/\1規格（2]〇χ297公Μ ) (請先閱讀背面之注意事項再填寫本頁) •裝--------，訂i ：-------線 ϋ. 經濟部智慧財產局員工消費合作社印製 527560 ：\7 ' __B7_ 五、發明說明（J5 ) 與裝置1 0間建立通訊21。然後使用者執行驅動器軟體， 驅動器軟體載入區段2的通行碼安裝設定模式2 3。然後使 用者載入一通行碼2 8，希望使用該通行碼以防止快閃記憶 體4的區段2受到未經授權的存取。然後通行碼加密2 9 及儲存3 0於快閃記憶體4。 終端使用者在執行前文所述其顯示於圖3初步通行碼設 j | 定程序後，當使用者插入2 0裝置1 0之電腦的USB埠時， ( 電腦將與裝置1 0建立通訊2 1，首先查驗儲存於快閃記憶 體4的儲存狀態旗標3 3 (參考圖4)。若狀態旗標為”是”， 則裝置1 0輸出”0K”旗標34至電腦。微控制器3指示電腦 發出請求給使用者選擇使用者希望進入的區段3 5。若狀態 旗標為’’否”則裝置不輸出”0K”旗標至電腦，且直接前進至 步驟3 5。響應請求3 5區段選擇，使用者選擇3 6區段1或 區段2。 若選擇區段1，則裝置1 0假定使用者希望安裝軟體於電 腦，係儲存於快閃記憶體4，且請求適當的通行碼3 7來確 認使用者被授權安裝該軟體。微控制器3接收到使用者載 入的通行碼，擷取儲存於快閃記憶體4之區段1通行碼， 解密區段1通行碼，且比對該通行碼與使用者載入的通行 碼來確認38使用者是否經授權來安裝軟體。若通行碼不匹 配，則裝置1 0提示電腦再度請求使用者載入通行碼3 7。 若使用者载入的通行碼匹配儲存於快閃記憶體4的通行 碼，則微控制器3開始由快閃記憶體4安裝軟體3 9至電 腦。為了安裝軟體，電腦發送於USB格式讀/寫資料指令 8 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A.i規格（2]ϋχ297公芨） 527560 __B7__ 五、發明說明（6 ) 4 0給微控制器3，微控制器3由快閃記憶體4擷取請求資 料且發送資料41至驅動器2。驅動器2轉換資料成為PC 格式42以及經由USB插頭1輸出資料至電腦。然後微控制 器3查驗軟體的安裝是否完成4 3。若操作未完成，則作業 返回步驟4 0。若軟體的安裝完成，則儲存於快閃記憶體4 的狀態旗標改咸”是”，然後裝置1 0由電腦的USB插座移開 45 « 若使用者選擇區段2，則微控制器3發送指令給電腦諳 求使用者載入區段2的通行碼4 6。當使用者載入通行碼， 則電腦發送通行碼至微控制器3。微控制器3由快閃記憶 體4擷取區段2的通行碼，解密通行碼4 7且與使用者載入 的通行碼比較。若使用者載入的通行碼不正確，則作業返 回步驟4 6及電腦請求使用者再度載入通行碼4 6。 若使用者載入的通行碼為正確，則使用者接取至快閃記 憶體4之區段2而由快閃記憶體4讀取資料以及寫入資料 至快閃記憶體4。但唯有當手動開關7係於允許資料寫至 快閃記憶體4的位置時才允許資料寫至快閃記憶體。為了 由快閃記憶體4讀或寫資料，讀或寫指令由電腦以USB格 式發送4 8至微控制器3。響應讀或寫指令，微控制器3由 快閃記憶體4擷取資料4 9，以及發送資料給驅動器2用以 轉換至PC袼式5 0，然後輸出至電腦或由驅動器接取資料 來寫入快閃記憶體4。 然後微控制器3決定讀或寫作業是否完成5 1。若作業尚 未完成則返回步驟4 8。若作業已經完成則作業結束5 2。 本紙張尺度適用中0國家標準（CNSM..1規格（2]0β97公Μ ) 9 -------------样衣--------：訂ί-------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作a印Μ 527560 ____B7_ 五、發明說明（7 ) / 前述裝置1 0耦合至通用序列匯流排（USB)。但插頭1、 介面裝置2及插座8可用於任何適當電腦序列匯流排。例 如裝置10可修改用於IEEE 1 3 9 4 (火線）協定，修改方式係 經由從火線協定相容的插頭、介面裝置及插座分別USB插 頭1、USB介面裝置2及插座8。 前述裝置1 0之優點為提供一種電腦用的攜帶式資料儲 存裝置其無需機械作動讀/寫裝置。此外裝置1 〇不含活動 部件。如此允許資料儲存裝置1 0比習知攜帶式資料儲存裝 置更為精簡。 元件編號說明 1 USB插頭 2 USB介面裝置 3 微控制器 4 快閃記憶體
I 5 唯讀記憶體 6 隨機存取記憶體 7 手動開關 8 U S B插座 10 資料儲存裝置 20 插入 2 1 建立通訊 2 2 通行碼設定安裝 2 3 載入通行碼安裝設定模式 2 6 加密 本紙張尺度述用中國國家標準（CNSM.〗規格（2]ϋ X 297公发） 10 (請先閱讀背面之注意事項再填寫本頁)

Claims (1)

  1. 527560 插入 建立PC/裝置間之通訊 T—]二二 選擇通行碼設定安裝13 Q
    儲存加密後的 通行碼
    527560
    第*廣
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US6880054B2 (en) 2005-04-12
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BR0015190A (pt) 2002-07-02
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