經濟部中央梯準局貝工消费合作社印製 3iG物 A7 s----_____ B7 五、發明説明（l ) ~ ~ ~ 本發明係關於記錄可寫回式資訊載體，資訊載體包含— 磁軌，而装置包含記綠裝置以便從啓始位置記錄部分磁軌 的資訊區塊，而資訊區塊以預定方式表示資訊。 本發明又係關於記錄可寫回式資訊載體之方法，資訊載 禮包含一磁軌，而資訊區塊從啓始位置記錄於部分磁軌上 ，而資訊區塊以預定方式表示資訊。 本發明也係關於根據—方法而記錄之可窝回式資訊載禮 0 這種配置’方法與資訊載體可參考美國專利第 5’388，1〇5號’裝置適用於光學可寫回與可讀取式資訊 載體，例如可抹除光i(CD_E)，其具有變相材料之可窝 回層。身用資訊載雜包含一預形磁軌即預槽。預槽包含地 址資訊，於記錄過程中其可定位寫讀頭，以便於磁軌中以 光學可讀取式類型作記錄以表示資訊。包含於區塊中的資 訊依地址資訊而決定從啓始位置，於磁軌的特定部分即磁 區中作記錄。接著由形成區塊的光學可讀取類型以某種方 式表示該資訊β例如此表示包含：一磁區辨識碼（ID)， —同步區，一資料區塊，與偵錯及改錯資料，在—特定編 碼下將該資訊包含於資料區塊中。已知裝置的問題是當資 訊載想同時記錄時，光學可讀取類型開始更加從期望形式 中偏離，以致讀取品質劣化。這會減少資訊載體的有效壽 命。 本發明之目標是提供一裝置其中可消除類型的偏離。 因此，根據本發明之裝置，其特徵爲將記錄裝置配3iG object A7 s_______ B7 printed by Beigong Consumer Cooperative of Central Bureau of Economics and Development, Ministry of Economic Affairs 5. Description of invention (l) ~ ~ ~ The present invention is about recordable information carrier, and the information carrier contains-magnetic track , And the device includes a green memory device to record the information block of some magnetic tracks from the starting position, and the information block represents information in a predetermined manner. The invention also relates to a method for recording a write-back information carrier. The information package includes a magnetic track, and the information block is recorded on a part of the magnetic track from the starting position, and the information block represents information in a predetermined manner. The present invention also relates to a recordable information recordable according to the method. This configuration 'method and information carrier can refer to US Patent No. 5'388, 1〇5' The device is suitable for optical write-back and recordable A read-type information carrier, such as erasable light i (CD_E), has a nestable layer of phase-change material. The body information contains a pre-shaped magnetic track or pre-groove. The pre-groove contains address information, which can position the write-read head during the recording process, so that the track can be recorded in an optically readable type to represent the information. The information contained in the block is determined from the starting position according to the address information, and is recorded in a specific part of the magnetic track, that is, the magnetic area. Then the optically readable type that forms the block represents the information in some way. For example, this representation includes: a magnetic area identification code (ID),-synchronization area, a data block, and error detection and correction data, The information is included in the data block under a specific code. The problem with the known device is that when the information carrier wants to record at the same time, the optically readable type starts to deviate more from the desired form, so that the reading quality deteriorates. This will reduce the effective life of the information carrier. The object of the present invention is to provide a device in which deviations of the type can be eliminated. Therefore, the device according to the invention is characterized in that the recording device is equipped with
本紙張 财 SII --------C -¾衣------1T------C 4 (請先閲讀背面之注意事項再填寫本頁) ^^0423 ^^0423 經濟部中央榡準局貝工消費合作杜印製 -5 A7 B7 五、發明説明（2 ) 沿著預定邊界内随機選擇之距離上之磁軌移動啓始位置， 以及/或用以適應該表示方式。本發明也基於以下認識， 即類型的偏離與以下極爲有關，即記錄於磁軌的相同部分 上的區塊之間的關係’而相同或極類似區塊的記錄更加速 劣化。 因此，根據本發明之方法’其特徵爲將記綠裝置配置成 沿著預定邊界内随機選擇之距離上之磁軌移動啓始位置， 以及/或用以適應該表示方式。 因此’根據本發明的資訊載體是根據該方法記錄。 根據本發明之測量結果’不斷地改變將記錄在磁軌每一 部分上的類型，因而阻止加速劣化。此效應的優點是它會 延長資訊載體的有效壽命。當使用習慣性的檔案管理系統 ’其一直將檔案管理資訊寫回在磁軌的同一位置上。 根據本發明之裝置的具體實例，其特徵爲當讀取時可從 資訊區塊恢復表示方式。其優點爲從一讀取資訊區塊恢復 的資訊與儲存於其他地方的表示方式的資訊無關。 根據本發明之裝置的又一具體實例，其特徵爲表示方式 表示用一擾頻鍵擾頻，該擾頻鍵包括於資訊區塊中。其優 點爲用擾頻可將記錄於相同位置的資訊區塊之間的任付 關減少。 ° 根據本發明之裝置的又一具體實例，其特徵爲表示， 包含資訊區塊中的僞資訊，當讀取時可辨識電該僞資訊 此優點爲藉由不斷地加入變化的僞資訊，每次 * y ν to ^ F ^在不同 位置將相同的類型記錄於資訊區塊中。在资 你反矾區塊中的資 本紙張尺度相巾®®家鮮（CNS )八4胁（21GX297公釐} --------C -I------1T------C i - . (請先閲讀背面之注意事項再填寫本頁)This paper SII -------- C -¾ clothing ------ 1T ------ C 4 (Please read the precautions on the back before filling this page) ^^ 0423 ^^ 0423 Printed by the Ministry of Economic Affairs, Central Bureau of Customs, Shellfish Consumer Cooperation-5 A7 B7 V. Description of the invention (2) The starting position of the movement of the magnetic track along a randomly selected distance within a predetermined boundary, and / or to adapt to this Representation. The present invention is also based on the recognition that the type deviation is extremely related to the relationship between the blocks recorded on the same part of the track and that the recording of the same or very similar blocks deteriorates more rapidly. Therefore, the method according to the present invention is characterized by configuring the green memory device to move the starting position of the magnetic track along a randomly selected distance within a predetermined boundary, and / or to adapt the representation. Therefore, the information carrier according to the invention is recorded according to this method. The measurement result according to the present invention constantly changes the type to be recorded on each part of the magnetic track, thereby preventing accelerated deterioration. The advantage of this effect is that it will extend the effective life of the information carrier. When using a habitual file management system, it always writes back file management information to the same location on the track. A specific example of the device according to the invention is characterized in that the representation can be restored from the information block when reading. The advantage is that the information recovered from a read information block has nothing to do with the information stored in other places. A further specific example of the device according to the present invention is characterized in that the representation mode represents scrambling with a scrambling key, which is included in the information block. The advantage is that scrambling can reduce any payment between the information blocks recorded in the same location. ° Another specific example of the device according to the present invention is characterized by including pseudo information in the information block, which can be identified when read. This advantage is that by continuously adding changing pseudo information, every Times * y ν to ^ F ^ record the same type in the information block in different locations. In the Ziyou anti-alum block, the capital paper-scale Xiangjin®® Home Fresh (CNS) 8 4 threats (21GX297mm) -------- C -I ------ 1T --- --- C i-. (Please read the notes on the back before filling this page)
經濟部中央梂準局貝工消费合作杜印製 訊之前加入僞資訊的結果是可大致上將舊資訊區塊蓋著， 且不會連續讀取無效部分。 根據本發明之裝置的又—具體實例，其特徵表示模式包 含於資訊區塊的随機選擇距離數上旋轉資訊。留在資訊區 塊一迻的資訊會加入另一邊’其優點爲旋轉資訊時不需要 於磁碟上有額外空間。當施加同步類型時其優點特別顯著 ，該類型與資訊一起移動因此不會—直位於相同的位置。 根據本發明之裝置的另—具體實例，其特徵爲表示模式 包含包括於各資訊區塊中随機選擇的位置。此優點爲可容 易的求出資訊旋轉的距離數，當施加同步類型時其優點特 別顯著，因爲在此情況下讀取時可決定第—同步類型前， 以及/或最後同步類型的資訊量。 由以下具體實例之説明將可明瞭本發明之這些與其他觀 點。 圖1顯示可窝回式資訊載體。 圖2的圖形顯示於啓始位置移動時與同時記錄的效應。 圖3顯示記錄资訊載體的裝置。 圖4是磁軌部分表示圖形’其中記錄著资訊區塊。 囷5是適應程序的囷形表示》 圖6是旋轉於資訊區塊中的資訊的圖形表示。 不同附圖中的相同數字表示相同元件。 圖la顯示可窝回的碟形資訊載體1。資訊載體包括—記 錄磁軌9，該磁軌以螺旋形彎曲配置。彆曲也可以是同心 而非螺旋形。以伺服類型表示資訊載體上的磁軌9，其中 ___________- 6 - 本紙通用中@國家梯準（CNS)八4祕（21()><297.公釐-—~—- --------{—裝------訂------^ ^--- (請先閱讀背面之注意事項再填寫本頁) A7 B7 經濟部中央標準局工消费合作社印製 五、發明説明（4 ) 例如預槽9於掃描操作時使请寫頭跟在磁軌9之後。伺服 類型也可包含例如正常分割的子類型會週期性的使信號發 生於追蹤伺服中。圖1 b顯示沿著資訊載體1的b _ b部分， 其中基體5由可寫回記錄層6與透明層7恢復。預槽4也可 配置成凸起部分，或是配置成與其四週不同的材料性質。 記錄層ό可以由裝置以光學或磁光學式記錄以記錄資訊區 塊。以類型記號表示資訊載體上的資訊，藉由在磁軌9中 形成類型，例如依記號的長度以一定或變化的寫入功率的 一或多次寫入脈衝來形成各記號。寫入參數如寫入功率， 脈衝數’變異，工作週期等都與資訊載體—致，該載體的 材料特性佔有重要地位。CD可抹除是可寫回資訊載雜的 例子’其由一變相材料層恢復，有關CD的讀取與預槽使 用的説明可參考布胡斯等人所著的「光碟系統原理」， ISBN 0-85274-785-3。 圖1 c與1 d顯示預槽的週期性調變（擺動）的2個例子，此 擺動使得額外信號在追蹤伺服拾起時發生。例如擺動是以 輔助信號作發關調變’此輔助信號包含编碼的輔助資訊。 輔助資訊包含表示磁軌縱向位置的地址資訊。關於包含這 種輔助資訊的資訊載髄可參考ΕΡ-0 397 238。可從此資訊 載體的地址資訊找到用以寫入資訊區塊的啓始磁轨位置3 本發明也適用於資訊載體，其中沿著磁軌的位置是以不 同方式決定，例如經由另一參考類型或是經由先前效在資 訊載體上的類型。本發明也適於另一結構的可寫回資訊載 體，例如光學磁帶。這些資訊載體可以用不同方式以地址 --------C -裝------訂------^知 (請先閱讀背面之注$項再填寫本頁) 本紙張认適肖巾賴家料（CNS > A4規^公釐y 經濟部中央標隼局貝工消費合作社印製 31Q423 A7 ---—— B7______ 五、發明説明（5 ) — 資訊來提供，例如經由沿著輔助磁軌的資訊。 圖2的圖形顯示於啓始位置移動時與同時記錄的效應。 圖形表示的情況，其中相同的資訊區塊一直記錄於可寫回 資訊載體的某一特定部分。以不同長度的光學可讀取類型 來形成資訊區塊，而長度的差總是固定距離的倍數，即所 謂的頻道位元^ —直評估讀取信號的品質，例如根據讀取 信號的振抖或是眼類型。當同時記錄時，磁軌縱向的資訊 區塊的啓始位置一直在特定邊界内的随機距離中移動。沿 著X軸的數字31表示頻道位元中這些邊界之間的距離。沿 著Y軸的32表示（對數）已記錄磁軌的特定部分數次。—直 記錄直到發生品質的特定劣化即可找到測量點。通過測量 點的曲線3 3反映記錄次數與每次重覆不同記錄類型的程 度之間的關係。此關係驚奇的顯示若相同類型同時記錄在 資訊載體的（大致上）固定位置，則金記錄的可用次數會減 少。此外需要啓始位置的大量移動以得到極大的可得到有 效壽命。對於測量的資訊載體而言此移動是1〇〇〇個頻道 位元。測量又顯示發生此現象增強情況，例如若類型顯示 拉長連續的記錄區。此外，特別是當記錄類型的平均行動 頻譜包括低頻成份時此現象更會發生。接著將記錄部分的 長度相加’而將那些未記錄的中間區的長度相減（或者相 反）。在已知可寫回的記錄系統中的腺衝位置調變（PPM ) 形式中僅以分散方式記錄短類型β當使用脈衝長度調變 (PLM) ’其產生較高的資訊密度，則會常發生長類型。高 資訊密度的PLM例子是EFM+頻道碼，可參考用於高密度 -8" 本紙張尺度適用中國國家標準（CNS ) Α4規格（210·χ297公釐1 ~~' -----~~ - f -裝-- - V (請先聞讀背面之注意事項再填寫本頁) 訂 -C抓 A7 A7 經濟部中央橾準局貝工消費合作杜印製 五、發明説明（6 ) CD的PCT/IB95/00070。本發明因此極適用於與pLM的合 併0 圖3顯示根據本發明用以記錄碟形資訊載體的裝置。裝 置包含编碼裝置52與寫讀裝置57，以便將資訊區塊寫入 資訊載體1。施加資訊至輸入51並將其轉換成編碼裝置52 中的寫入信號，並以預定方式顯示資訊區塊中的資訊。施 加窝入信號至窝讀裝置57，由驅動裝置5 8驅動以旋轉資 訊載體1，窝讀裝置57經由光束56來掃描磁軌9並將記號 類型寫入其中以表示資訊。掃描操作時，由常用的伺服系 統（未顯示）將寫讀裝置57定位在磁軌9上。系統控制器59 經由驅動裝置與伺服系統控制資訊載體的掃描。大致上這 種裝置也包含解碼裝置S3以恢復經由窝讀裝置57從類型 中讀出時的資訊。恢復的資訊接著在輸出54上產生，裝 置又包含一解調變器裝置55以恢復地址資訊，掃描磁軌 時產生的伺服信號，則加入解網變器裝置5 5，其配置成 解調變伺服信號以恢復輔助信號。解調變器裝置5 5從輔 助仏號中找出地址資訊，並將該資訊送入系統控制器5 9 〇 根據本發明將寫入裝置52，57，59配置成窝入資訊區 塊’依此方式在時特定區域的相同位置上的相同類型的窝 入會極小。此端的第一測量是系統控制器5 9相對於額定 界定的啓始位置將要記錄的資訊區塊的啓始位置移動—距 離。可隨機選擇此距離，但是要在預定邊界内，因爲可能 將磁軌中的前面或後面資訊區塊蓋著。此外與頻道編碼中 « mm ( CNS ) ( C ------IT------c-k (請先閲讀背面之注意事項再填寫本頁) 經濟部中央橾準局貝工消費合作社印製 310423 A 7 --—— B7 五、發明説明（7 ) 找到的類型距離相比這是很大的距離。在各可寫回 體中應於區塊之間留下足夠的空間以作移動。其實現方 是例如藉由保留下足夠用於資訊區塊，則額定啓始位置1 間的極大（峰至峰）移動，例如即在標準系統規格中。例如 可移動1000位元，因而損失_EFM+碼（8/16資料/頻道: 兀）的3 %，2 k位元組資訊區塊，及〖D同步區等以及約 0.2%的3 2 k位元組資訊區塊。第―測量的效應的詳情如 圖4所示。 第二測量是不斷地適應資訊的表示法。因此，將編碼裝 置52配置配合此適應，而選擇的通應—直是不同的。用 鍵來表示，因此當讀出時，系統控制器5 9需要再解碼資 訊區塊以產生鍵。例如可將產生2 5 6個不同鍵的随機位元 組當成鍵用。或者使用連續鍵。其接著可當成重復計數器 使用，用鍵顯示一磁軌部分已被記錄的次數。當到達某一 極大値時，接著讀取時在發生錯誤前，可防止該磁軌特定 邵分的再使用。爲了產生連續键可使用一系統，其中連續 鍵之間的大部分位元是不同的可將键儲存於資訊區塊， 或是中央區的資訊載體上3因此重要一點是於讀取時要使 鍵具有極大的保護以防止錯誤，因爲若键錯誤則不可能將 資訊恢復。因此，可用常用的校錯碼來保護鍵，但也可在 資訊區塊中的數個點重復。或者將鍵儲存於裝置中的記憶 禮（例如在系統控制器）。記憶體是永久記憶體，接著僅可 由各裝置讀取資訊載體。或者於各特定時間將記憶體的内 容記錄於資訊載體上。 -10 - 各紙张尺度逋用中國國篆標率（CNS > A4洗格（210X 297公釐〉 { I裝------訂-----\線 ί請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消费合作社印製 A7 ____ _ B? 五、發明説明（8 ) 爲了適應表示法可使用擾頻。對於這種適應，是以已知 方式用一位元串（如EX-OR操作）來處理寫入信號。爲了 產生位元串而使用產生器電路，其中依鍵而產生位元串。 此键可包含於資訊區塊中，例如在I D中》從讀取信號中 以簡單方式恢復I D是較佳的，因爲若要選擇一期望資訊 區塊時，系統控制器即可快迷知道I D。因此，可於I D中 使用簡單的擾頻操作。擾頻時也可使用所謂的自同步擾頻 操作。這不需要任何的特定鍵，但是去擾頻器會於已處理 過特定數目的擾頻信號串後再度上線。可觀察到當擾頻資 訊時其鍵並不適於各寫入操作。但是例如從I D的資訊中 找出，而期望的有用效應並未達成。 適應表示法的另一測量是將僞資訊加入資訊區塊中，例 如藉由包括一個充滿随機選擇的變長區，但是在資訊區塊 的開始則於每次記錄固定的偽位元组。此僞區後接著是 ID區’其可以固定方式辨識。因此’讀取資訊區塊時會 一直能找到ID區’而整磁軌區仍然作記錄，所以不會繼 續出現先前效資訊區塊的舊或無效部分。或者在資訊區塊 的末端’可加入這種具有變化僞資訊的區，而記錄區的長 度則是常數（僞區+區塊内容+僞區）。 孩等測量可分離或合併實施，移動的特別優點是讀取裝 置不必用特定測量來讀取根據本發明記錄的可寫回資訊區 塊。因此接著的讀取大致等於唯讀或窝一次資訊載體。於 電腦與多媒體應用上，其優點爲可使用不同類的資訊載體 。若記錄較小的資訊區塊，則移動會大量減資訊密度，若 -—~— ____ - 11 - 本紙張尺度逋用 ( CNS ) ("210X2^iil-----— ΛI I I I 訂— I I I — 人^ (請先閲讀背面之注意事項再填舄本頁) A7 B7 五、發明説明（9 如此則可較佳地將有限移動輿擾頻操作合併。擾頻可大量 減少要記錄的資訊區塊的自相關。依選擇的頻道碼而決定 要將那些類型連續固定，例如EFM +頻道碼中的同步類型 。接著有限移動操作足以一直在磁軌的不同位置中記錄這 些類型。藉由選擇有限移動，則自然地能夠在資訊載體上 達成較高的資訊密度。 圖4疋磁軌的表示圖形（未按照比例），其中於移動的啓 始位置記錄著資訊區塊。以實低41，42，43表示額定啓 始位置，其互相之間有一距離4 〇，此外可將移種系統於 額定啓始位置之間以不同間距施加在磁軌的子區。44， 經濟部中央標準局貝工消費合作社印裝 I n n n - —1 - I I t. (請先聞讀背面之注意事項再填寫本頁) 4 5 ’ 4 6是記錄的資訊區塊。可注意到第一區塊4 4開始於 額定的啓始位置，第二區塊4 5在額定啓始位置後的特定 距離，而第三區塊46在額定啓始位置前β因此區塊間的 間距可以不同’數次記錄後間距會包含部分的舊資訊如低 區塊4 7的開始所示。但是應該注意到在供可寫入資訊載 體用的已知記錄系統中，於資訊區塊的啓始位置變化時的 區塊之間的邊界是已知。此邊界（如1 6位元）係用以補償 啓始位置的機械與電的公差，其發生於當記錄操作開始時 。因此已知裝置不會包括裝置用以將（隨機）距離（與邊界 或單一類型相比較大）加入额定啓始位置。 圖5是適應程序的圖形表示。因此要合併2個測量，則 擾頻與移動。系統控制器執行以下步驟： 5 1 :系統控制器收到記錄資訊區塊的命令並決定一额定 啓始位置。 本紙張尺度逋用中國國家標準（CNS ) A4規格（210X297公釐） UQ423 A7 B7 經濟部中央梯準局貝工消费合作社印製 13 五、發明説明（10 ) 52 ··系統控制器產生-随機鍵並提供它至編碼裝置”， 及命令编碼裝置與此鍵擾頻，例如該鍵本身也包括在區塊 53 :系統控制器將一隨機距離加入額定啓始位置。 54 :系統控制器於磁軌9的期望區上將讀H置定位 ，並等待要Μ於料裝算㈣啓始以，例如 在與解調變裝置55讀取的地址資訊有關的情沉下。 S5:系統控制器命令寫入裝置52，”去寫'。讀取操作( 未顯示)是以類似方式執行’其中鍵先從讀取信號中恢復 並施加在解碼裝置53中的去擾㈣置，接著於已知的讀 取裝置中執行解碼。 圖6是於資訊區塊中的旋轉資訊的圈形表示。在第—資 訊區塊61中，資訊是位於額定位3而通常资訊區塊“以 RUN-IN部分63開始，其包括—讀取類型供讀取裝置讀取 ，更特別地，於鎖相迴路（PLL)鎖住資料時脈的產生時， 由GUARD部分67關閉資訊區塊以避免突然轉移至先前記 錄的資訊載體或類型的未記錄部分。於RIJN IN 63與 GUARD 67之間是資訊區6〇，其包含—或多個资訊區塊 Dn與同步類型s。於圈6中有4個資訊區塊D〇 (65)，D i， D 2，D3 (66)，而各資訊區塊之前是―同步類型6 4。爲了 避免同時記錄時資訊區塊與同步類型S —直記綠於相同位 置’資訊區6 0中的資訊於每次記錄時都旋轉一随機距離 ，如囷ό中的第二資訊區塊6 2所示。要了解的是旋轉或者 稱爲繞圈迴轉，是指資訊區6 〇中的所有位元都以一特別 良紙張从逋用中關家縣（CNS )从祕（2]()><297公董 { -^ITC.V (請先閲讀背面之注意事項再填寫本I) 經濟部中央橾準局貝工消費合作杜印製 A7 _ _ B7 五、發明説明（11 ) 方向移動，其中移動到資料區邊界外的位元又移動到資訊 區的另一端邊界的空白空間。在資訊區塊62的例子中， 資料區塊與同步類型於一頻道位元上移動，而最後區塊 D 3則分二部分6 8，6 9。最後資料區塊d 3的第二部分6 9 於移動後會超過端點邊界70 ’並且於資訊區6〇的啓始邊 界後加入第一資料區塊。不必觀察該旋轉也能於另一方向 中實現，其中特別是D0分成2部分。讀取操作時，從讀取 信號中導出移動a ’也導出資訊區6 0於開始與/或結束》 其實現方式爲，例如選擇RUN-IN類型與/或GUARD類型 的特定格式。此外a的値也可明確包括於資訊區塊中，最 好相對於同步類型的預定位置。最好於資訊區塊的RUN-iN與 / 或 GUARD 部分中使用可變類型 ，因爲 這些部分的品 質會比資訊區塊的部分更快劣化。例如藉由使用run_in 類型的（變數）値3 ’而RUN-IN現是變數，則於讀出時可將 a编號。或者僅可能將同步類型的位置變動a並使用擾頻 鍵來擾頻剩餘資料，例如該鍵接著包括於RUN_IN部分。 於讀取顯示移動的同步類型的區塊時，最好讀取裝置能包 含一記憶體以儲存第一同步類型之前的信號，已建立同步 後則解碼記憶體的内容。在圖中的第二資訊區塊62中， 例如可從記憶體中實現解碼，該記憶體儲存區塊的部分 69，而該部分則加入第一資料區塊，這是在最後資料區 塊D 3的第一部分6 8的解碼之後。 藉由選擇夠大的距離（如圖2中的1〇〇〇個頻道位元），則 可高度達成以同步類型作的資訊區塊的可窝回性。此明顯 _____ _ 14 - 本紙張尺度i|_財邮家榡準（⑽）A峨格（加X加讀） ---- _ ^ ------II------ί 4 (請先閏讀背面之注意事項再填寫本页) 310423 A7 B7 五、發明説明（l2 適用於沒有固疋同步類型的資訊區塊，當讀出時解碼的同 ^可以不同的万式實現。也可能使用無RUN-IN或GUARD 區的資訊區塊’例如若連續記綠複數個資訊區塊。在所有 的清況下其優點都爲第—種方式的旋轉不需要於資訊 之間加入額外空間，因爲其-直都可記錄相同位t °。 (請先閲讀背面之注意事項再填寫本頁) ----{-裝------訂--------- 經濟部中央樣準局負工消费合作社印製 -15 本紙張尺度適用中國國家標準（CNS ) A4规格（210 X297公釐 I本 告 3 4 ο ίλ 3 呻tnr J85. 05. 27. 案 號 85106262 類 別 310423 A4 C4修正頁(86年3月） 3ί 3 4 ο 經濟部中央標孪局員工消費合作社印製The Ministry of Economic Affairs, Central Bureau of Precision Industry, Beigong Consumer Co., Ltd. printed du information before adding the information. As a result, the old information block can be roughly covered, and the invalid part will not be read continuously. A further specific example of the device according to the present invention is characterized in that the pattern contains information rotating at randomly selected distance numbers of information blocks. The information left in the information block will be added on the other side. The advantage is that it does not require extra space on the disk when rotating the information. The advantages are particularly significant when the synchronization type is applied. The type moves with the information and therefore will not be in the same position. Another specific example of the device according to the present invention is characterized in that the pattern includes a randomly selected position included in each information block. This advantage is that it is easy to find the number of information rotation distances. The advantage is particularly significant when the synchronization type is applied, because in this case, the amount of information before the first synchronization type and / or the last synchronization type can be determined when reading. These and other points of view of the present invention will be apparent from the description of the following specific examples. Fig. 1 shows a nestable information carrier. The graph in Figure 2 shows the effect of simultaneous recording when moving from the starting position. Figure 3 shows an apparatus for recording an information carrier. Fig. 4 is a diagram showing part of the track "in which information blocks are recorded. Fig. 5 is a representation of the shape of the adaptation program. Fig. 6 is a graphical representation of the information rotated in the information block. The same numbers in different drawings represent the same elements. Figure la shows a disc-shaped information carrier 1 that can be nested back. The information carrier includes a recording magnetic track 9, which is arranged in a spiral shape. The other song can also be concentric instead of spiral. The magnetic track 9 on the information carrier is represented by the type of servo, of which ___________- 6-This paper is used in general @ 国 梯 准 （CNS) 八 4 秘 （21 () > < 297.mm-— ~~-- ------ {— 装 ------ 定 ------ ^ ^ --- (please read the notes on the back before filling in this page) A7 B7 Industrial and Consumer Cooperative of Central Bureau of Standards, Ministry of Economic Affairs Printing 5. Description of the invention (4) For example, the pre-groove 9 requires the write head to follow the magnetic track 9 during the scanning operation. The servo type may also include a sub-type such as normal division, which periodically causes the signal to occur in the tracking servo Figure 1b shows the b_b portion along the information carrier 1, where the substrate 5 is recovered from the write-back recording layer 6 and the transparent layer 7. The pre-groove 4 can also be configured as a convex portion, or configured differently from its surroundings The material properties of the recording layer. The recording layer can be recorded optically or magneto-optically by the device to record the information block. The type mark indicates the information on the information carrier, by forming the type in the magnetic track 9, for example, according to the length of the mark Or one or more write pulses of varying write power to form each mark. Write parameters such as write power, number of pulses' The difference, the working cycle, etc. are all consistent with the information carrier, and the material characteristics of the carrier play an important role. CD erasable is an example of information that can be written back. It is recovered from a phase-change material layer. For the description of the use of the slot, please refer to "The Principle of the Optical Disc System" by Buhus et al., ISBN 0-85274-785-3. Figure 1 c and 1 d show two examples of the periodic modulation (swing) of the pre-slot , The wobble makes the extra signal occur when the tracking servo is picked up. For example, the wobble is an auxiliary signal to send off modulation. This auxiliary signal contains encoded auxiliary information. The auxiliary information includes address information indicating the longitudinal position of the magnetic track. The information carrier of this auxiliary information can refer to ΕΡ-0 397 238. The starting track position for writing the information block can be found from the address information of this information carrier. The invention is also applicable to information carriers, in which The position of the track is determined in different ways, for example by another reference type or by the type previously applied to the information carrier. The invention is also suitable for another structure of a write-back information carrier, such as an optical tape These information carriers can be used in different ways to address -------- C-install ------ order ------ ^ know (please read the note $ item on the back and then fill in this page) The paper recognizes the Xiao Xiaolai's materials (CNS> A4 ^^ mm y Printed by the Central Standard Falcon Bureau of the Ministry of Economic Affairs, Beigong Consumer Cooperatives 31Q423 A7 ------- B7______ Fifth, the description of the invention (5) — information to provide, For example, through the information along the auxiliary magnetic track. The graph of Figure 2 shows the effect of simultaneous recording when moving from the starting position. The situation represented by the graph, in which the same information block has been recorded in a specific recordable information carrier section. The information blocks are formed with optically readable types of different lengths, and the difference in length is always a multiple of a fixed distance, the so-called channel bit ^-to directly evaluate the quality of the read signal, for example according to the vibration of the read signal Or eye type. When recording simultaneously, the starting position of the information block in the longitudinal direction of the track has been moving within a random distance within a specific boundary. The number 31 along the X axis indicates the distance between these boundaries in the channel bit. 32 along the Y axis represents (logarithmic) the specific portion of the recorded track several times. — Record until the specific deterioration of the quality occurs to find the measurement point. The curve 3 3 through the measurement points reflects the relationship between the number of recordings and the degree to which different recording types are repeated each time. This relationship surprisingly shows that if the same type is simultaneously recorded in a (approximately) fixed position on the information carrier, the number of times the gold record is available will be reduced. In addition, a large amount of movement from the starting position is required to obtain a very large effective life. For the measured information carrier, this movement is 1000 channel bits. Measurements again show that this phenomenon has increased, for example, if the type shows an elongated continuous recording area. In addition, this phenomenon occurs especially when the average action spectrum of the recording type includes low-frequency components. Next, the lengths of the recorded parts are added together and the lengths of those unrecorded intermediate areas are subtracted (or reversed). In the form of glandular position modulation (PPM) in known write-back recording systems, only the short type β is recorded in a decentralized manner. When using pulse length modulation (PLM), which produces a higher information density, it will often Occurrence type. An example of PLM with high information density is the EFM + channel code, which can be used for high-density-8 " This paper standard is applicable to the Chinese National Standard (CNS) Α4 specification (210 · χ297mm 1 ~~ '----- ~~- f -installed--V (please read the notes on the back before filling in this page) Order-C Grab A7 A7 Central Ministry of Economic Affairs Bureau of Industry and Fisheries Cooperative Printed by DuPont V. Invention Description (6) PCT of CD / IB95 / 00070. The invention is therefore very suitable for merging with pLM Into the information carrier 1. Apply the information to the input 51 and convert it into a write signal in the encoding device 52, and display the information in the information block in a predetermined manner. Apply the nesting signal to the nesting device 57 by the driving device 5 8 Drive to rotate the information carrier 1, and the nest reader 57 scans the magnetic track 9 via the light beam 56 and writes the mark type therein to represent the information. During the scanning operation, the write reader 57 is positioned by a common servo system (not shown) On the magnetic track 9. The system controller 59 via the drive The servo system controls the scanning of the information carrier. Generally this device also includes a decoding device S3 to recover the information when it was read from the type via the nest reader 57. The recovered information is then generated on the output 54 and the device includes a demodulation The transformer device 55 recovers the address information, and the servo signal generated when scanning the track is added to the de-networking transformer device 55, which is configured to demodulate the servo signal to recover the auxiliary signal. The demodulator device 55 Find the address information in the number and send the information to the system controller 5 9. According to the present invention, the writing devices 52, 57, 59 are configured to nest in the information block 'in this way at the same position in the specific area The intrusion of the same type on the above is extremely small. The first measurement at this end is that the system controller 59 moves relative to the starting position of the information block to be recorded relative to the rated defined starting position-distance. This distance can be selected randomly, but Be within the predetermined boundary, because the front or back information blocks in the track may be covered. In addition, the channel code «mm (CNS) (C ------ IT ------ ck (please Read the note on the back first Please fill in this page for details) 310423 A 7 --—— B7 printed by Beigong Consumer Cooperative of the Central Bureau of Economic Affairs of the Ministry of Economy V. Description of the invention (7) The distance to the type found is a very large distance. There should be enough space between the blocks for movement in the body. For example, by retaining enough for the information block, the maximum (peak-to-peak) movement between the rated starting position 1 For example, it is in the standard system specifications. For example, it can be moved by 1000 bits, so it loses 3% of the _EFM + code (8/16 data / channel: 5), the 2 kbyte information block, and the D sync area, etc. and About 0.2% of the 3 2 kbyte information block. The details of the measured effect are shown in Figure 4. The second measure is to constantly adapt to the representation of information. Therefore, the configuration of the encoding device 52 is adapted to this adaptation, and the selected response is different. It is represented by the key, so when reading out, the system controller 59 needs to decode the information block again to generate the key. For example, random bytes that generate 2 5 6 different keys can be used as keys. Or use the continuous key. It can then be used as a repetition counter, using the keys to display the number of times a track portion has been recorded. When a certain maximum value is reached, and then an error occurs during reading, it can prevent the specific use of the magnetic track from being reused. In order to generate consecutive keys, a system can be used in which most of the bits between consecutive keys are different. The key can be stored in the information block or on the information carrier in the central area. 3 It is therefore important to use The key has great protection against errors, because if the key is wrong, it is impossible to recover the information. Therefore, the commonly used error correction code can be used to protect the key, but it can also be repeated at several points in the information block. Or store the key in the memory of the device (for example in the system controller). The memory is a permanent memory, and then the information carrier can only be read by each device. Or record the contents of the memory on the information carrier at specific times. -10-China ’s national seal rate (CNS> A4 wash grid) (210X 297mm) for each paper scale Please fill in this page again) A7 ____ _ B? Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (8) Scrambling can be used in order to adapt the representation. For this kind of adaptation, a known method is used. A bit string (such as an EX-OR operation) to process the write signal. A generator circuit is used to generate the bit string, where the bit string is generated according to the key. This key can be included in the information block, for example, in the ID 》 It is better to recover the ID from the read signal in a simple way, because the system controller can quickly know the ID when selecting a desired information block. Therefore, a simple scrambling operation can be used in the ID. When scrambling, you can also use the so-called self-synchronizing scrambling operation. This does not require any specific keys, but the descrambler will come online again after a certain number of scrambled signal strings have been processed. It can be observed that when scrambling information The key is not suitable for each writing operation. But for example, find out from the ID information , And the desired useful effect is not achieved. Another measure of adaptive representation is to add pseudo information to the information block, for example by including a variable-length area filled with random selection, but at the beginning of the information block is Each time a fixed pseudo byte is recorded. This pseudo area is followed by an ID area which can be identified in a fixed manner. Therefore, the “ID area will always be found when reading the information block” and the entire track area is still recorded, so The old or invalid part of the previously valid information block will not continue to appear. Or at the end of the information block, such an area with changed pseudo information can be added, and the length of the recording area is constant (pseudo area + block content + Pseudo area). Measurements such as children can be separated or combined, and the special advantage of movement is that the reading device does not need to use specific measurements to read the write-back information block recorded according to the present invention. Therefore, the subsequent reading is roughly equal to read-only or One-time information carrier. In computer and multimedia applications, the advantage is that different types of information carriers can be used. If a smaller information block is recorded, the movement will greatly reduce the information density, if--~-__ __-11-This paper is used (CNS) (" 210X2 ^ iil -----— ΛI III order — III — person ^ (please read the precautions on the back before filling this page) A7 B7 5. Description of the invention (9) In this way, it is better to combine limited mobile scrambling operations. Scrambling can greatly reduce the autocorrelation of the information blocks to be recorded. It is decided to continuously fix those types according to the selected channel code, such as EFM + The type of synchronization in the channel code. Then the limited movement operation is sufficient to keep recording these types in different positions of the track. By selecting the limited movement, it is naturally possible to achieve a higher information density on the information carrier. Representation of the track (not to scale), where the information block is recorded at the beginning of the movement. The real low 41, 42, 43 represents the rated starting position, which has a distance of 40 between them. In addition, the seeding system can be applied to the sub-zones of the magnetic track at different intervals between the rated starting positions. 44. Printed and printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs I n n n-— 1-I I t. It can be noticed that the first block 44 starts at the rated starting position, the second block 45 has a certain distance after the rated starting position, and the third block 46 is β before the rated starting position. The spacing can be different. After several recordings, the spacing will contain some of the old information as shown at the beginning of the low block 47. It should be noted, however, that in known recording systems for writable information carriers, the boundaries between blocks when the starting position of the information block changes are known. This boundary (for example, 16 bits) is used to compensate the mechanical and electrical tolerances of the starting position, which occurs when the recording operation starts. Therefore, the known device does not include a device for adding (random) distance (larger than the boundary or single type) to the nominal starting position. Figure 5 is a graphical representation of the adaptation program. Therefore, to combine two measurements, scramble and move. The system controller performs the following steps: 5 1: The system controller receives the command to record the information block and determines a rated starting position. The size of this paper is printed in Chinese National Standard (CNS) A4 (210X297mm) UQ423 A7 B7 Printed by the Beigong Consumer Cooperative of the Central Bureau of Economics of the Ministry of Economics 13 5. Description of the invention (10) 52 Key and provide it to the encoding device ", and command the encoding device to scramble with this key, for example the key itself is also included in block 53: the system controller adds a random distance to the rated starting position. 54: system controller Position the read H on the desired area of the magnetic track 9 and wait for the start of the material loading calculation, for example, to sink in relation to the address information read by the demodulation device 55. S5: System control The device commands the writing device 52, "Go Write". The reading operation (not shown) is performed in a similar manner where the key is first recovered from the read signal and applied to the descrambling device in the decoding device 53, and then performs decoding in a known reading device. Figure 6 is a circle representation of rotating information in the information block. In the first-information block 61, the information is located at the rated position 3 and usually the information block "starts with the RUN-IN part 63, which includes the -reading type for the reading device to read, more specifically, in the phase When the loop (PLL) locks the generation of the data clock, the information block is closed by the GUARD part 67 to avoid a sudden transfer to the unrecorded part of the previously recorded information carrier or type. Between RIJN IN 63 and GUARD 67 is the information area 6〇, which contains—or multiple information blocks Dn and synchronization type s. In circle 6 there are 4 information blocks D〇 (65), D i, D 2, D3 (66), and each information area Before the block is-synchronization type 6 4. In order to avoid simultaneous recording of information blocks and synchronization type S-keep in mind that the green is in the same position 'information in the information area 6 0 rotates a random distance each time it is recorded, such as 囷 ό The second information block 6 in the 2 is shown. It should be understood that the rotation or rotation is referred to as the rotation, which means that all the bits in the information area 60 are used from a special good paper from Zhongguanjia County (CNS ) From the secret (2) () < 297 public director {-^ ITC.V (please read the notes on the back before filling in this I) Economy A7 _ _ B7 produced by the Central Bureau of Industry and Fisheries Consumer Cooperation Co., Ltd. V. Description of the invention (11) Directional movement, where the bits that move outside the boundary of the data area move to the blank space at the other end of the information area. In the example of block 62, the data block and synchronization type move on one channel bit, and the last block D 3 is divided into two parts 6 8 and 6 9. The second part 6 9 of the last data block d 3 is After the movement, it will exceed the endpoint boundary 70 'and the first data block will be added after the starting boundary of the information area 60. It is possible to realize it in the other direction without observing the rotation, in particular D0 is divided into 2 parts. Read During operation, the movement a 'is derived from the read signal and the information area 60 is also derived at the beginning and / or end. Its implementation is, for example, to select a specific format of the RUN-IN type and / or GUARD type. In addition, the value of a Can be explicitly included in the information block, preferably relative to the predetermined position of the synchronization type. It is best to use variable types in the RUN-iN and / or GUARD part of the information block, because the quality of these parts will be better than that of the information block Of the parts will deteriorate faster. By using run_in type (variable) value 3 'and RUN-IN is now a variable, you can number a when reading it out. Or it is only possible to change the position of the synchronization type a and use the scramble key to scramble the remaining The data, for example, the key is then included in the RUN_IN part. When reading a block showing the synchronization type of movement, it is best that the reading device can include a memory to store the signal before the first synchronization type and decode after the synchronization has been established The content of the memory. In the second information block 62 in the figure, for example, decoding can be implemented from the memory, the memory stores the part 69 of the block, and this part is added to the first data block, which is in After the decoding of the first part 68 of the last data block D 3. By selecting a sufficiently large distance (such as 1000 channel bits in FIG. 2), the reproducibility of information blocks made of synchronization types can be highly achieved. This is obvious _____ _ 14-The size of the paper i | _ 财 邮 家 榡 准 (⑽) A Ege (plus X plus reading) ---- _ ^ ------ II ------ ί 4 (please read the precautions on the back before filling this page) 310423 A7 B7 V. Description of the invention (l2 is applicable to the information block without synchronous type, the same decoding can be realized in different ways when reading out .It is also possible to use information blocks without RUN-IN or GUARD area. For example, if you keep multiple information blocks in green, the advantage is that the first method of rotation does not need to be added between information in all clear conditions. Extra space, because it can record the same bit t ° straight. (Please read the precautions on the back before filling this page) ---- {-装 ------ 定 -------- -Printed by the Central Prototype Bureau of the Ministry of Economic Affairs of the Negative Work Consumer Cooperative -15 This paper scale is applicable to the Chinese National Standard (CNS) A4 specifications (210 X297 mm I this report 3 4 ο ίλ 3 呻 tnr J85. 05. 27. Case No. 85106262 Category 310423 A4 C4 amendment page (March 86) 3ί 3 4 ο Printed by the Employee Consumer Cooperative of the Central Standard Bureau of the Ministry of Economic Affairs
本紙張尺度適用中國國家標隼（CNS ) Α4規格（2i〇v-297公f ; « mi t^n ABU · 裝-- 訂The size of this paper is applicable to China National Standard Falcon (CNS) Α4 specification (2i〇v-297 gf; «mi t ^ n ABU · Packing-Order