TW479231B - Improvements to DVD navigation information for improved trick modes - Google Patents
Improvements to DVD navigation information for improved trick modes Download PDFInfo
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- TW479231B TW479231B TW089123856A TW89123856A TW479231B TW 479231 B TW479231 B TW 479231B TW 089123856 A TW089123856 A TW 089123856A TW 89123856 A TW89123856 A TW 89123856A TW 479231 B TW479231 B TW 479231B
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Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Optical Recording Or Reproduction (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Studio Circuits (AREA)
Description
479231 五、發明說明(1) 發明背景 技術領域 概略而言本發明之配置係有關僅聲頻、僅視頻以及聲頻 及視頻節目記錄於碟形媒體例如,可讀寫數位影音光碟、、 硬碟機及磁光碟提供先進操作功能特色之方法及裝置。 相關技術說明 ' ~———1 已經開發多種裝置俾讓消費者可記錄視頻及/或聲頻節 目供稍,呈現。此種裝置包括錄音帶、錄影機、可錄式光 碟以及最為先進的可讀寫數位影音光碟(DVD)。也曾使用 硬碟機及磁光碟。 、 —僅可兄錄一次隨後大致變成DVD唯讀記憶體的DVD係以頭 =,DVD-R稱之。頭字語DVD通常也用於表示寫一次或記錄 “=技術。目前有數種格式可供”^記錄、抹消以及重新 5己録’換言之,改寫或重寫。以頭字語DVD-RAM、DVD-RW RW稱之。至目釗為止業界尚無一致被採用的產業標 準。頭字語DVD-RAM、DVD-RW及DVD + RW也通常用以表示個不 2 :重寫巧術。此處述及可重寫DVD技術、裝置及方法通 :,圖涵蓋所有今日使用的標準,以及未來可發展出的標 # :二例中,節目的呈現係在觀視者及/或收聽者不在場 二^二,於猶,更方便的時間呈現。如此稱作移時節目。 紅^匕時間一節目正在被觀視及/或收聽而未被記錄且I 齡何$己錄的興#,但觀視者及/或收聽者的注意力受到中 ’例如被電話或未預期的訪客所中斷。若觀視者及/或
第5頁 479231 五、發明說明(2) 收聽者正在觀賞一個電視節目(舉例)且有個錄影帶在錄放 影機内部或可快速拿到且載入錄影帶,則節目^ =記=。 但觀視者及/或收聽者無法觀視及/或收聽節目的入1卩:°乂 適當時間順序觀視直到記錄完成為止。完成記錄二時間^ 據節目長度而定可長可短。
II 雖然通常可利用可讀寫DVD技術,但操作限於播放、記 錄、快速剞轉、反轉及彳〒止等功能。可利用暫停,但 作為錄放影機暫停功能的相對部分,例如中斷預錄節目 回放或中斷正在觀視節目的記錄俾便由記錄中去除^土。’ 不似電腦硬碟機,可讀寫DVD裂置具有極為有意義 功能亦即回放預錄的DVD。如此有經濟上的誘因來發、 讀”VD技術包括方法及裝置’其可用以替代電腦硬碟機 ^提供帶有改良有利功能特色而未有損降低成本 售量目的之此種裝置乃一大挑戰。 儲存於DVD媒體的一組圖像組(G〇p)典型係包含於 頻物件單元(V0BU)之邏輯單元内部。典型…別含Η 或16張圖像連同其相關聲頻資料。進—步各刪一 ^ ^^(NV_PCK) 〇NV_PCKf ° 及ί含括於其中的該視頻物件單元之磁碟搜尋資 控制資訊含有節目的時序以及呈現細節。 = 由删的劉覽封包於前轉及倒轉方向的相 組成。各NV —PCK也包括於G〇p之第一參 S'二二:議之前三個參考圖像之結束位址。此乃 唯有關V 0 B U結構的線索。 五、發明說明(3) 了資Γ用以執行「特殊…模式,換言之除 。習知磁砰栌尋5以及暫停以外的磁碟機功能的任何模式 於VOBU内訊(DSi)之一特徵方面為其輔助解碼器 輔助解碼哭找到/應目WNV一PCK之—圖像。NV-PCK也含有 V〇BU。相^目]!!對於目α_Μ之未來或過去呈現的遠處 BWDI(倒轉次心別V〇M呈現的過去V〇BU標示於NV — PCK稱作 標示於NVVCK:闌位。相對於目前V_呈現之未來V〇BU係 尋資訊資Ϊ確^作剛(前轉資訊)之欄位。習知磁碟搜 度。例如二ί:涉及再生視頻特殊顯示模式至有限程 -段預定;快速前轉及倒轉唯有再生期間具有 預定時間=:之刪參考1圖像才可行。選定的-段 知IP心二UK㈡ΓΓ度決定,於習 嚴重受限制。如Λ 。數f有限,故顯示特殊模式的彈性 之各個GOP之内邻°^PCK貝料不包括有關包含於一個VOBU Γ之内部結構的較多資訊。 ,^ 發明概述 本發明彳么女曰曰 ~ 位影音光‘提f 具有多個視頻物件單元(ν_)之數 碟具有多==殊模式性能之方法,該數位影音』 覽封包。元(v〇M),此處各個崎有4 .充磁碟搜尋;於各個㈣覽封包儲存某種補 =1象結構;多個由各圖像以正常播放二ΐ多者·· v_之 =包含於該咖之圖像組⑽P)。 的欄位;以 DSI之圖像㈣部分包含有關包含
第7頁 根據一具體實施 479231 五、發明說明(4) 於該VOBU之各個GOP之格式資訊;於該V0BU之各該G〇p之圖 像類型序列;該V〇BU之各圖像之起點位址;以及該v〇BU之 各圖像之終點位址。 。根據一特徵方面,該方法進一步包括處理SDSI用以決定 f應於使用者選定的特殊模式Q Q p所含圖像中欲呈現之選 疋圖像。例如SDSI可用以決定各V0BU所含之最少數目圖像 根據替代具體實施例,一個所含之最少圖像數目可 經由計算VOBU所含I及p圖像決定。 =據本發明方法進一步包括對一選定的特殊模式G 〇 p中 :=圖像可顯不之選定圖像數目。基於此項決定,特殊模 二呈,Z選擇性地僅涉及顯示G0P所含的1圖像及P圖像。 如右廷疋的特殊模式速度過快無法即時讓GOP内部之全 二圖:皆:碼及顯示即屬此種情況。用於甚至更快速的特 =^右廷疋的特殊模式速度對顯示全部I圖像及P圖像 ,則呈現可能僅限於顯示G〇p所含之t圖像及p圖 擇ίί二二Ϊ據較佳具體實施例,欲顯示之G0P所含之選 擇f $可於含G0P之V0BU開始解碼及顯示前決定。 根據本發明之另一特徵方面,該 計算各圖像大小之步驟。此項資用1:括處理SDSI而 資料緩衝器,因而回應於選“特:::官理DVD裝置之 序以及健存於緩衝器圖像數" = 者”?f跳越順 訊也可用於決定其它可用以管理;料ΐ;: 里;;:此 何者:二 何圖像預備顯示,維持於記,體之 17者圖像將用於多重解碼,以及需、i ^ 。己U奴之 次而要夕少記憶體來儲存其
第8頁 479231 五、發明說明(5) 〜 '~" 中所需圖像。 *根據替代具體實施例,本發明也包括一種提供改良特殊 模式性能之DVD裝置。DVD裝置具有特殊處理設備可提供儲 存某些SDSI於DVD上於各瀏覽封包内。SDSI包括下列一或 ^者.VOBU之圖像結構;於正常播放模式由各圖像欲顯示 的欄位數目;以及包含於該VOBU之圖像組(GOP)數目。 於=二具?實施例’SDSI之圖像資料部分包含有關包含 像ΐ创床,。個G〇P之格式資訊;於該V0BU之各該GOp之圖 夂;、傻二:,—_之各圖像之起點位址;以及該v_之 合圖像之終點位址。 根據一特徵方面,D V D牡要、仓 μ S !用以決定回岸二衣用置者進包括處理設備W ^ 像中欲呈現之選定g德廷疋的特殊模式⑶Ρ所含圖 之最少數目圖像。# M L a 1可用以決定各V〇BU所含 根據本發明D v D裝置進一步 圖」象決定。
^含®像可顯示之選U像數目。㈣模式G0P 拉式呈現可選擇性地僅涉及顯示gq ^J6此項決定’特殊 Φ 。例如若選定的特殊模式速度過快益3的I圖像及P圖像 全部圖像皆解瑪及顯示即屬此種情;;去:時猜内部之 特殊模S,若選定的特殊模式速度對顯用於甚至更快速的 像而言過快,則呈現可能僅限於顯示GOp^全部I圖像及p圖 圖像之部分。根據較佳具體實施例,欲g所—含之I圖像及p 選擇圖像可於含G0P之V0BU開始解碼及顯1不之⑶?所含之 續示前決定。
第9頁 479231 .......... _ 五、發明說明(6) 根據本發明之另一特徵方面,' ' ^ 計算各圖像大小之設備。此項資;J用也包括處理SDSI而 資料缓衝器因而回應於選擇的特殃7以管理DVD裝置之 以及儲存於緩衝器圖像數目中之二二,讓圖像跳越順序 資訊也可用於決定其它可用以管理=I者最理想化。此項 括包含於-GOP之何組圖像預備顯示貝科:衝器之資訊,包 者圖像將用於多重解碼,以及兩 ,,隹持於記憶體之何 所需圖像。 而 夕^、記憶體來儲存其中 圖式之簡單說明 圖1為可讀寫DVD裝置之方塊目 本發明之配置之先進操作功能特徵,。、知供一或多種根據 圖2為略圖可用以說明可讀寫dvd之砰 織圖3為略圖可用以說明視頻物‘件組中^^件單元之組 圖4說明圖3之瀏覽封包結構。 圖5說明圖4之磁碟搜尋資訊(Ds 圖6說明圖5之DSI -般fm(DSI 容。 圖7說明根據本發明之配置之 包^谷。 圖Μ兒明根據本發明之配置之補 ; 攔位内容。 未夺又寸貝矾(SDS I) 圖9說明根據本發明之配置用於一 (GOP_PS)襴位内容。 ' 、,圖像之圖像結構 可讀寫DVD裝置 479231 五、發明說明(7) 此處教示根據本發明之配置執、^ ^ ^ ^ 二:=;顯:於圖卜可重寫碟=2^ to貝把例中具體貫施為可重寫D v _ . y丄/ W不具 可重寫❹棋-」 VD。許多例中(容後詳述) :重寫,m也例如為硬碟機或磁光碟(M 广) 之一例為迷你碟片。許多例中,本發 途先碟 頻或聲頻或視頻與聲頻二者。 x ' °應用於視 裝置100可寫至及讀取自碟形 ,。裝置包含一機械總成104、::制於區=可,_ 耸頻輸入處理路徑1 4 〇以及一視1 二 視頻/ ,._ A 視頻/荦頻輸出處理路徑H0 :方塊配置於不同區段或不同路徑為顯然自明,部分 A的配置係供方便目的而非療解裝置操作所必要。 機械總成104包含一馬達106甩以旋轉_ 1〇 :::成⑽適合於旋轉中的碟片上移動。拾取總成上的i 徂點燒錄於碟片之螺形軌上照射已經燒錄於執上的 明仏§己錄與回放視頻及/或聲頻節目材料。為求 ^目的,碟片是否可讀寫於-邊或兩邊,或於雙邊記錄 之例’、碟片是否為雙邊記錄或隨後由碟片讀取係由碟片同 一邊或兩邊讀取皆無妨。拾取總成及馬達係由伺服器1 ^ 〇 ,制。伺服器1 1 0也接收來自碟片i 〇 2之螺形執讀取的回放 貝料k唬作為第一輸入。回放信號亦為錯誤校 之輸…誤校正電路可視為控制區段之一部分;= 聲頻輸出處理路徑的一部分。 控制區段120包含控制中央處理單元(cpu) 122及瀏覽資
479231 五、發明說明(8) -- ϋ路126。控制CPU 122供給第-輸入信號至劉覽資 ΐ料ί:ί126,以及词服器110供給第二輸入信號至瀏覽 ; = :飼服器有被視為控制區段的-部分。 154 ’多/毛路26供給第一輸入信號至多工器(MUX) 抑工^形成視頻/聲頻輸入處理路徑14〇之一部分。 知裝置中,劉覽資料生成電路126將生成習 配置,丨割朁資料吐士 + 存視頻貧料。根據本發明之 ί後IK資訊可用以改良選定的特殊模式= 1〇8,該輸出將藉雷射:=式輸入信號供給拾取總成 控制CPU 122也較佳可存==一」於碟片1〇2之螺形執上。 錄緩衝器152之^ 取匕含於軌跡緩衝器172以及記 以及重新袼Λνν二::⑽122可刪除、修改 之視頻資料。較作 < 罢4 、、”衝态1 7 2以及記錄緩衝器1 5 2 控制封包視頻編二^^:料介面用以允許CPU m 適當軟體或韌體於記愔轉耳頻編碼器148之操作。提供 作。此外,先進功能G = M由控制CPU 1 22執行習知操 發明控制CPU 1 22,六之程式常式提供用以根據本 ^ ’谷後詳述。 規視者可致動功能 功能亦即播放、記錄、制緩衝器132表示目前可利用的 止。暫停為錄放影機暫=作=速前轉、暫停/播放及停 本乍的對應部分,例如人工中斷 479231
預錄節目的回放,或人工中斷被觀視節目的記錄俾由記錄 資料中去除廣告。分開緩衝器1 3 6設置用以接收指令執行τ 此處教示之本發明之配置。 視頻/聲頻輸入處理路徑1 4 〇為一種信號處理電路用以將 習知電視信號例如N T S C或P A L轉成數位化封包資料如μ ρ £ G L 1或MPEG-2用以藉裝置1〇〇做數位記錄。輸入路徑HQ包含 NTSC解碼器142及視頻編碼器如MPEG-1或MPEG-2 144用於 ,頻進,以及包含聲頻類比至數位轉換器(A/D) 146以及 聲頻編瑪器如MPEG-1或MPEG-2 148。數位化信號於多工器
1 5 O4組合且儲存於記錄緩衝器丨5 2,直到完整封包建構為止 二ΐ各封包被建構時,各封包於多工器1 5 4組合產生於劉 覽貝料生成電路的適當瀏覽封包,且送至錯誤校正編碼電 路128。錯誤校正編碼電路128也被視為輸入路徑14〇的一 部分。 貫際上,DVD之螺形執跡上可定址的最小單位為丨6扇區 的ECC(錯決校正編碼)區塊,此處各扇區包括位元組 使用者貝料。一組為整數Ecc區塊例如丨2區塊。各組區塊 表不約0 · 5秒視頻與聲頻節目材料的組合。記錄一組ECC區 塊例=1 9 2扇區需要的沿螺形執之線性空間量於此處定 ^ ί =段螺形執。如此顯然記錄緩衝器僅需夠大可容納 :又資料即可。一節段資料例如對應於約0. 5秒聲頻及 視頻節目材料。 輸出處理路徑1 7 〇包 或稱作輸出緩衝器1 7 2 含錯誤校正區塊1 3 0以及執跡緩衝器 ’其中由碟片讀取的資料被組裝成
第13頁 五、發明說明(10) :’條件式存取J 制::J係由條件式存取電路1 74處理 入個別視頻及赴相ί制封匕,經由解多工器176的傳播進 僅需夠大丌件耳颈處理路徑。如此也顯然執跡緩衝哭1 72 節段f料即可,也對應於約心 及Ϊ Ϊ : Ϊ碼器1 78解碼例如由ΜΡΕ(^或MPEG-2解碼,以 及,·扁碼作為習知電視信號例如NTSC或?紅。聲頻由 解碼例如由MPEG-1或MPEG-2解碼’且由聲頻數位至類比 〇 轉換器184轉成類比形式。PC I緩衝器1 90及PCI解碼 裔192可被提供以解碼包含於磁碟上之瀏覽封包所含之呈 現控制資訊。輸出處理路徑170如所記可視為包括 正電路1 3 0。 設置DSI緩衝器1 86用以接收瀏覽封包所含的磁碟搜尋資 Λ (DS I)。DS I解碼裔用以解碼瀏覽封包所含DS j資訊, 後詳述。 注意,本發明可於硬體、軟體或軟硬體的組合實現。根 據本發明之機器可讀取儲存裝置可以集中方式於一電腦系 統如控制CPU 122實施或以分散方式實施,此處不同元T' 件展開跨若干互連電腦系統。任一種電腦系統或其它適合 執行此處所述方法之裝置皆可接受。 。 特別雖然此處所速本發明涵蓋圖1之控制CPU 1 22,但典 型硬體及軟體的組合可為通用目的電腦系統帶有一電腦程 式,該電腦程式當載入且執行時可類似圖1之控制區段丨2〇 控制電腦系統以及DVD記錄系統,因此可執行此處所述方
479231 五、發明說明(11) 法。本發明也可後置於電腦程式產品,其包含全部可實施 此處所述方法之功能特色,以及其當載入電腦系統時可執 行此等方法。 本内文之電腦程式表示以任一種語言、代碼或符號表示 之一組指令意圖讓一個具有資訊處理能力的系統直接或於 下列任一者或二者之後執行特殊功能:(a)轉成另一語言 、代碼或符號;以及(b)於不同材料形式再生。此處揭示 之發明可為一種方法嵌置於一電腦程式,其可由程式設計 師使用可與前述控制CPU 1 22相容的作業系統之市售開發 工具執行。 . DVD媒體 用於舉例說明本發明之配置,節目材料可記錄於可讀 寫DVD以及由可讀寫DVD回放。圓2所述可讀寫DVD 1〇適合 用作為裝置100之磁碟102。磁碟10係由平坦圓形塑膠板狀 構件1 2形成。可讀寫DVD係由二基材藉黏著層黏合在一起 形成厚1 · 2毫米的磁碟。中孔1 4形成於磁碟因此圓 的爽緊裝置可牢固爽緊磁碟以及根據4二之/控達 制磁碟的角向運動。 ^ 執跡上的記錄方向典型係沿螺形執丨6向外方向記錄, 由螺形之較小半徑部分至螺形之較大半徑部分。^ i ^列 二大點(...)表示圖中未顯示出的軌跡部分β έ士果泛步軌 t被視為接近孔14而以方形18表示。螺形Μ =為接 k邊緣而以愛形20表不。如所記,業界人士 一般接 起點及終點的定義。根據本發明配置之某此先 : 本二尤運功能特色
第15頁 五、發明說明(12) 利用反向圮錄’換言之由較大半徑螺形部分至較小 幵:部分。執跡也有邊至邊晃動(圖中未顯示)俾配合媒:? 土的私索。由於僅顯示執跡丨6該部分尺寸的困難,故^碩 大為放大的比例顯示。 $以 各近圓形且為徑向同心之螺形區段偶爾稱作為軌 旦此用語通常不接受為具有該特定定義。例如於⑶咄⑽,’ ^ ^ 一闹也用來表示螺形執之含有單首曲子之部分,或其 它選擇’同樣也可能或不可能常見於MD。 …本發明之配置於此處已經就可讀寫DVD媒體做說明,
:業界人士瞭解本發明非僅限於此一方面。反而如此處所 u用於改良特殊模式之對DVD瀏覽資訊的改良可用於任一 型磁碟媒體,包括但非限於DV]) — R型媒體。 DVD資料結構 =圖3所示,各DVD含有一視頻管理者“及一視頻標題集 2 TS) 28。VTS包括視頻標題集合資訊(VTSI ) 27,功能 义之選項視頻物件集合29,一或多標題Μ其含有實 =題内容以及咖備份31。各v〇BS 3〇包含多個視頻物
曰f視頻物件32包括多個晶格單位34。各VOBS也包括 至曰曰格單位的扎標器集合。藉此方式,資料將晶格單 ϋ結在一起且指示欲播放節目或晶格單位的順序。特殊 内部的晶格單位可加旗標用以任何預定順序播放。例 如可循序播放或隨機播放。 =晶格單位包括多個V0BU 36。磁碟之視頻内容駐在 ,各VOBU 36典型含有(^彳至^秒呈現資料。各ν〇βυ
第16頁 479231 五、發明說明(13) 36為一序列以記錄順序排列的資料封包。各VOBU始於恰一 個瀏覽封包(NV_PCK) 38且可包含全部下列各種封包包括 視頻包(V — PCK) 39、聲頻包(A —PCK ) 40及子圖像包 (SP —PCK) 42。各個VOBU通常係由一組圖像(GOP)組成。 圖4-6說明習知NV_PCK 38之結構。如圖4所示,NV_PCK 38包括pci封包4 5以及DSI封包48。PCI封包包括封包標頭 4 3及PCI資料44。同理,DSI封包48包括封包標頭47以及 DSI資料46。
圖5說明圖4之磁碟搜尋資訊(DS丨)資料攔位内容。DS I資 料包括若干參數包括DSI —般資訊(DSI_GI) 70。圖6說·明 圖5之DSI —般資訊(DSI—GI)資料内容。DSI_GI含有業界已 知之多種資訊,包括VOBU 36之第一、第二以及第三參考 圖像的終點位址。此等參數於圖6分別標示為 VOBU—1STREF—EA ,VQBU—2NDREF—EA ,VQBU—3RDREF—EA 。需 瞭解圖4、5及6所示精確資料結構僅供舉例說明而本發明 絕非叉此所限。反而任何其它適當資料結構配置皆可用於 此項目的。 用於改良特殊模式之DVD瀏覽資訊的改良 “根據本發明^配置,為了讓現有瀏覽封包更可用於特殊 杈式,將額外資訊含括於其中。特別此等額外資料包括: V0B請含G0P數目;各個此種G〇p之圖像結構;以及於正常 播放模式由各圖像欲顯示的欄位編號(1、2或㈧。此等有 關本發明之配置之資訊於後文稱作補充磁碟搜尋資訊 (S D S I)本&明可結合非可讀寫磁碟媒體如D v D R,可讀
第17頁 479231 五、發明說明(14) '一' -- 寫磁碟媒體例如DVD-RAM、DVD-RW、DVD + RW及任何其它適 當儲存資料之磁碟媒體使用。 /' 〜 SDSI資料可以任何適當方式添加至"—pcK μ。根據一 具體實施例,資料可添加成一分開SDS I封包5 2,如圖7所 示。若使用分開SDS I封包,則封包標頭4 9可連同SDS I資料 50提供。SDSI資料50較佳包含至少一個SDSI —般資訊、/ (SDS I —G I)欄位,如圖8所示。替代具體實施例中, SDSI—GI欄位可單純附屬於現有!^1資料46作為sdsi 一般資 訊(SDSI一GI )欄位。 又貝 現在參照圖8,可見SDSI_GI含有各種有關v〇BUr部所含 圖像資訊。VOBILNGOP參數識別VOBU所含G〇p數目。G〇p_ps 欄位含有各GOP之圖像結構以及其它G〇p相關資%。最後^ V〇BU —NF較佳列舉由各圖像欲產-生的顯示攔位編號(1、2或 3 ),但非於特殊模式。 現在參照圖9,可見G0P_PS包含G〇P —FMT參數用以識別各 G0P的格式(開放或封閉);G〇P_SEQ參數用以列舉夂⑶?之 =類型順序(I、P及B) ;G0P_SA_PIC參數用以識D別⑽p 圖像之起點位址;以及G0P —EA_PIC參數用以陳述G〇p 各圖像之終點位址。 及ΐ用此:,可導出新策略用以於特殊模式解碼 及:員不- h V0BU。例如於高速回放模式 回放全部V0M所含的圖像。使用額外⑽“資 的回放速度(2倍、3倍、4倍)以及特殊”別格乂 更能決定最理想的圖像回放順序。例如經由計算画;:
第18頁 、發明說明(15) 圖像,目可推定跨完整VOBU的最小圖像數目。此項資訊用 ^決^是否有足夠時間可於選定的回放速度於可利用的顯 示 卽#又日間内處理且顯示全部圖像。另外,可使用資% 來決定是否僅跳過Β圖像可在可利用時間以内提供預定回° 放速度。此經常為較佳解決之道,原因在於β圖像的解 比I及Ρ型圖像更耗時。 至於又另一替代例,若無足夠時間來顯示全部I及ρ圖像 ,貝丨可顯不V0BU之分數部分。若干例中可能希望顯示完整 G0P圖、像順序然後跳過一個ν〇Μ中預定數目G〇p的回放。正 SDS I貝矾允許以有效方式執行此種回放。另外,若干模式 可能要枣包含於V0BU的I及ρ圖像總數的前半,或可顯示 G0P的π右干其它選定部分。總而言之,使用SDS丨資料,於 開始解碼且顯示一特殊¥〇別之聲頻/視頻資料前,可由MB 裝置播放器控制CPU評估情況用以決定最理想的回放性能 Λ之另一項用途係更良好管理記憶體的壓縮 用回放特別反向特殊模式回放可能實質上需 、圖:Γ貢源。例如於f向特殊模式中,☆開始解碼 :二炎^順序終點之則 '經常需要解碼於-G0P順户 像。因:向’順序終點的圖像先顯示,^ 大量記憶體。…體資源二: 。此種辦法 於某些情況下可能被改寫。、體中的解碼 高。使用此處所述SDSI資訊可解瑪器的處理負 J做折衷來找出管理記憶
五 發明說明(16) 源以及處理資源間的適當平衡。 進—步,瞭解全部纟且成一 G Ο P 各圖像大小。若可以此種 、之圖像位址,有機會計算 示圖像可利用的時間,,式決定圖像大小,以及已知禹 料緩衝器。例如使用軌二Z ^ f效管理DVD裝置之Μ縮資 特殊模式最理想化,俾、琴出^以及訊框緩衝器可讓選萍 保留於緩衝器的圖像數^。=適合策略用於跳越及/或可 何者圖像,何者圖像可目。貧訊大小約可用來決定欲顯示 /或需要多少記憶體n於記憶體㈣於多重解碼,及 需昤紐A A 獲何預定圖像。
/、午匕處所述修改 杀構。就此方面而t,+目夺=見封包可用於任何肝EG記錄 ;〇 , λ I a ^ 何 其匕種類的磁碟婵體塊、的先進功能特色可應用至 ,圖1所+壯朱媒把u及磁碟媒體播放器及印样哭 所不裝置以及圖2所示 々己錄為。此外 以根據本發明4 ’、系之夕種修改可it因田 根據本發明夕 進力此特色。拉丨 4 乂月之配置用於改良特殊模式之才巴特別 之解決之i首4 t 良D V D濁覽資1 之逼包括,於控制cpu 122用於 I貝汛 DVD媒轉夕h 綠貝料至可读皆 系體之任何修改及對硬體、韌體及 項寫 % 的添加。
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Claims (1)
- ^/9231第22頁 479231 六、申請專利範圍 7.如申請專利範圍第6項之方法,進一步包含下述步驟 ,若選定的特殊模式速度過快而無法允許該GOP的全部圖 像皆被顯示時,僅顯示該GOP所含之I圖像及P圖像。 8 ·如申請專利範圍第6項之方法,進一步包含下述步驟 ,若該選定的特殊模式速度過快而無法顯示全部I圖像及P 圖像時,則僅顯示該GOP所含之I圖像及P圖像之分數。 9. 如申請專利範圍第6項之方法,其中於開始解碼與顯 示包含於該GOP之VOBU前,決定於特殊模式欲顯示之包含 於該GOP之選定圖像。 10. 如申請專利範圍第1項之方法,進一步包含處理SDSI 而計算各圖像大小之步驟。 1 1.如申請專利範圍第1 0項之方法,進一步包含處理該 SDSI用以管理一磁碟媒體裝置之資料緩衝器俾響應選定的 特殊模式讓圖像跳越順序以及儲存於緩衝器之圖像數目中 之至少一者變最理想化。 1 2.如申請專利範圍第1 1項之方法,進一步包含使用該 大小資訊決定包含於GOP欲顯示之一組圖像,維持於記憶 體之該等圖像中何者將用於多重解碼,以及需要多少記憶 體來儲存預定圖像中之至少一者。 1 3. —種提供改良特殊模式性能之磁碟媒體裝置,包含 儲存裝置,用以儲存視頻資料於一磁碟媒體,該磁 碟媒體具有多個視頻物件單元(VOBU),各VOBU含有一瀏覽 封包;第23頁 479231 、申請專利範圍 儲存裝* ’用以於該磁碟媒體之各該瀏覽封包内儲 存補充磁碟搜尋資訊(SDSI)其可識別下列之一 一 VOBU圖像結構; 夕 常播放模式由各圖像欲顯示的欄位數目;以及 包含於該VOBU之圖像組(GOP)數目。 η.如申請專利範圍第13項之可讀寫磁碟媒體裝豆 中该圖像結構進一步包含下列至少—者· 、 /、 包含於該VOBU内部之各GOP格式; 於VOBU之各該GOP之圖像類型順序; ❹ VOBU之各圖像之起點位址;以及 . VOBU之各圖像之終點位址。 .如人申請專利範圍第13項《可讀寫磁碟媒體裝置,進 特,用以處理SDSI俾回應於使用者選定的 特殊杈式決疋包含於G0P之圖像中欲呈現之選定者。 16·申請專利範圍第13項之可讀寫磁碟媒體裝置,進一 步包含處理裝置.1以處理該⑽!俾決定包含於各該v_ 之圖像數目。 17.申請專利範圍第16項之可讀寫磁碟媒體裝置,其中 包含於該VOBU之圖像數目係經由計算包含kV〇bu之至少工 及P圖像決定。 1 8·申請專利範圍第丨6項之可讀寫磁碟媒體裝置,進一 步包含決定裝置’用以基於MSDSI決定對一選定特殊模式 包含於該G0P之可顯示的圖像之選定數目。 1 9·申請專利範圍第丨8項之可讀寫磁碟媒體裝置,進一第24頁 479231 六、申請專利範圍 步包含顯示裝置,用以於選定的特殊模式速度過快而無法 允許全部GOP内部圖像皆被顯示時,僅顯示包含於GOP之I 圖像及P圖像。 2 0.申請專利範圍第1 8項之可讀寫磁碟媒體裝置,進一 步包含顯示裝置,用以於選定的特殊模式速度過快而無法 顯示全部I圖像及P圖像時,僅顯示包含於該GOP之I圖像及 P圖像之分數數目。 2 1.申請專利範圍第1 8項之可讀寫磁碟媒體裝置,其中 於開始解碼與顯示包含於該GOP之VOBU前,決定於特殊模 式欲顯示之包含於該GOP之選定圖像。 · 2 2.申請專利範圍第1 3項之可讀寫磁碟媒體裝置,進一 步包含處理該SDSI而算出各該圖像大小之裝置。 2 3.申請專利範圍第2 2項之可讀寫磁碟媒體裝置,進一 步包含裝置用以處理該SDSI用以管理一磁碟媒體裝置之資 料緩衝器俾響應選定的特殊模式讓圖像跳越順序以及儲存 於緩衝器之圖像數目中之至少一者變最理想化。 2 4.申請專利範圍第2 3項之可讀寫磁碟媒體裝置,其中 該處理裝置使用該大小資訊決定包含於GOP欲顯示之一組 圖像,維持於記憶體之該等圖像中何者將用於多重解碼, 以及需要多少記憶體來儲存預定圖像中之至少一者。III第25頁
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2002
- 2002-05-10 MX MXPA02004756A patent/MXPA02004756A/es active IP Right Grant
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2003
- 2003-05-29 HK HK03103821A patent/HK1051615A1/xx not_active IP Right Cessation
- 2003-06-03 HK HK03103927A patent/HK1051763A1/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI478154B (zh) * | 2003-10-04 | 2015-03-21 | Samsung Electronics Co Ltd | 儲存搜尋資訊的再生方法 |
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