535152 4 7 9 1 t \\ Γ d 〇 c / 0 0 6 A7 B7 五、發明說明（f) 本發明是有關於一種光學記錄媒體，且特別是有關於 一種應用具有不同寬度變化訊號坑之光碟片。 (請先閱讀背面之注意事項再填寫本頁) 光碟片例如雷射光碟(compact disc，CD)、數位影音光 碟(digital video disc, DVD)，以其面積小、可容納的資料量 大、保存容易與高傳真音質等優點，迅速地取代傳統的塑 膠唱片與錄音帶，成爲影音市場的主流媒體，並用來作爲 大量資料儲存的媒介。 一般的雷射光碟係以數位的方式將使用者資料（user data)記錄在光碟片上。其方式爲，把使用者資料編碼(encode) 爲頻道位元(channel bit)，然後根據得到的頻道位元，在光 碟片讀軌(tmck)上形成長度不同、寬度與光碟片讀軌寬度 相當的訊號坑(pit)。讀取記錄在光碟片上的使用者資料時， 則是利用光學讀取頭(optical pick-up)讀取訊號坑的讀出信 號（read-out signal)變化，將頻道位元解碼(decode)還原。 經濟部智慧財產局員工消費合作社印製 通常，一組8位元的使用者資料經過編碼程序後，以 一組14個頻道位元表示。請同時參照第1圖與第2圖， 一組使用者資料10經編碼後，轉換爲一組頻道位元12。 然後，根據頻道位元12在讀軌上形成訊號坑22，其中各 訊號坑長度不同、寬度相同。讀取資料時，光學讀取頭的 讀出信號24因訊號坑22與碟面的高度變化，而有不同的 強度變化。如在訊號坑22內與碟面處的讀出信號24的強 度不變，而在訊號坑22與碟面相接處的讀出信號24強度 改變。 上述方式的缺點爲其資料儲存效率小於1吏用14個 3 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) 152 4 79 1535152 4 7 9 1 t \\ Γ d oc / 0 0 6 A7 B7 V. Description of the invention (f) The present invention relates to an optical recording medium, and in particular to an application of an optical disc having signal pits with varying widths sheet. (Please read the precautions on the back before filling out this page) Optical discs, such as compact discs (CDs) and digital video discs (DVDs), are small in size, can hold a large amount of data, and save Easy and high-fidelity sound quality, etc., quickly replaced traditional plastic records and audio tapes, became the mainstream media in the audiovisual market, and used as a medium for storing a large amount of data. A general laser optical disc records user data on the optical disc in a digital manner. The method is to encode user data into channel bits, and then according to the obtained channel bits, form different lengths on the disc read track (tmck), and the width is equivalent to the width of the disc read track. Signal pit. When reading the user data recorded on the optical disc, the optical pick-up is used to read the change of the read-out signal of the signal pit, and the channel bits are decoded and restored. . Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Generally, a set of 8-bit user data is represented by a set of 14 channel bits after the encoding process. Please refer to FIG. 1 and FIG. 2 at the same time. After a set of user data 10 is encoded, it is converted into a set of channel bits 12. Then, a signal pit 22 is formed on the read track according to the channel bit 12, wherein each signal pit has a different length and the same width. When reading data, the read signal 24 of the optical pickup has different intensity changes due to the height change of the signal pit 22 and the surface of the disc. For example, in the signal pit 22, the intensity of the read signal 24 at the disc surface does not change, but in the signal pit 22 and the disc surface, the intensity of the read signal 24 changes. The disadvantage of the above method is that the data storage efficiency is less than 1 and 14 are used. 3 The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 152 4 79 1
Inn Γ doc/006 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明（爻） 頻道位元僅能表示8位元使用者資料，資料的儲存容量受 限。若要提升光碟片的資料儲存量，除增大光碟片面積外^ 便需使用波長較小的光學裝置以改變訊號坑的尺寸，使_ 號坑變小，以便能在同樣面積上儲存更多資料。 因此本發明的一目的就是在提供一種光碟片，其_用 具有不同寬度變化的訊號坑，在同樣光碟片面積下，提高 光碟片的資料儲存容量。 本發明的另一目的是在提供一種具局資料容量的光碟 片，且此光碟片與現有裝置相容。 本發明提出一種光碟片，此光碟片上有複數條讀軌， 其中每一條讀軌上具有複數個訊號坑，且每一訊號坑具有 至少兩種寬度變化。 本發明提出一種光碟片，此光碟片上有複數條讀軌， 其中每一條讀軌上具有複數個訊號坑，且部分訊號坑具有 至少兩種寬度變化，而其餘訊號坑僅有一種寬度變化。 爲讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細 說明如下： 圖式之簡單說明： 第1圖係繪示習知一組使用者資料與頻道位元的轉換 關係， 第2圖係繪示根據第1圖頻道位元形成的訊號坑與讀 出信號的對應圖； 第3圖係繪示根據本發明較佳實施例之頻遣位元、訊 € ------------裝--------訂---------線 (請先閱讀背面之注咅？事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 535152 479 1 twf doc/0 06 A7 B7 五、發明說明（B) 號坑與讀出信號的對應圖；以及Inn Γ doc / 006 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (爻) The channel bits can only represent 8-bit user data, and the storage capacity of the data is limited. In order to increase the data storage capacity of the optical disc, in addition to increasing the area of the optical disc ^, it is necessary to use an optical device with a smaller wavelength to change the size of the signal pit and make the _ pit smaller so that more can be stored on the same area data. Therefore, an object of the present invention is to provide an optical disc which uses signal pits having different width changes to increase the data storage capacity of the optical disc under the same area of the optical disc. Another object of the present invention is to provide an optical disc with a local data capacity, and the optical disc is compatible with existing devices. The present invention provides an optical disc. The optical disc has a plurality of read tracks, wherein each read track has a plurality of signal pits, and each signal pit has at least two width changes. The present invention proposes an optical disc. The optical disc has a plurality of read tracks, each of which has a plurality of signal pits, and some of the signal pits have at least two width changes, while the remaining signal pits have only one width change. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments in detail with the accompanying drawings as follows: Brief description of the drawings: FIG. 1 Figure 2 shows the conversion relationship between a set of user data and channel bits. Figure 2 shows the correspondence between the signal pits and readout signals formed according to the channel bits in Figure 1. Figure 3 shows the correspondence between the signal pits and the readout signals. Dispatch bit and information of the preferred embodiment of the invention ------------ install -------- order --------- line (please read the back first (Notes? Matters should be filled out on this page) The size of this paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) 535152 479 1 twf doc / 0 06 A7 B7 V. Description of the Invention (B) A map of the output signals; and
第4圖係繪示根據本發明較佳實施例之另一頻道价 元、訊號坑與讀出信號的對應圖。 、I 圖式之標記說明： 10 :使用者資料 12, 20, 30, 40 :頻道位元 14, 22, 32, 42, 44 :訊號坑 24, 34, 46 :讀出信號 實施例 本發明係應用改變光學記錄媒體上訊號坑寬度的方 式，增加光學記錄媒體的資料儲存量。 第3圖係繪示根據本發明較佳實施例之頻道位元、気 號坑與讀出信號的對應圖。 ° 請參照第3圖，根據頻道位元30形成的訊號坑32皆 具有兩種不同的寬度變化，且每一訊號坑32對稱其長_ 方向。本實施例中，訊號坑32的第二寬度約與光碟片言賣 軌寬度相同，而第一寬度則窄於第二寬度。因爲訊號坑32 具有兩種寬度變化，每一頻道位元便需重新定義，以表示 訊號坑3 2的寬度變化。在本實施例中，定義頻道位元有 四種狀態：頻道位兀’ 0 ’代表寬度沒有變化的平面，如：光 碟片表面或是訊號坑底面，頻道位元’Γ代表訊號坑第1種 寬度邊緣，頻道位元’2’代表訊號坑第2種寬度邊緣，頻道 位元’3’代表訊號坑第1種寬度變化至訊號坑第2種寬度， 或是訊號坑第2種寬度變化至訊號坑第1種寬度。 5 ------------^--------tT---------線· (請先閱讀背面之注咅p事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 535152 4 7 9 1 t \ν Γ doc/ 0 0 6 A7 B7 五、發明說明（β) 由於訊號坑32具有不同的寬度變化，因此讀出信號 的強度除了受訊號坑與碟面的變化影響外，訊號坑寬度的 變化也影響光學讀取頭讀出信號的強度。如讀出信號34 所示，讀出訊號34有三種不同的強度變化，分別表示訊 號坑32的不同寬度變化。依據讀出信號34的不同強度變 化，即可對具有不同定義的頻道位元進行解碼。 藉由訊號坑寬度的變化，使用相同數目的頻道位元即 可表示更多的使用者資料，因爲每一頻道位元可代表更多 的資訊。本實施例係藉由改變訊號坑寬度，增加讀出信號 的強度變化，利用增加的讀出信號強度變化，來提高資料 儲存效率，以增加資料儲存量。應用上述訊號坑寬度變化 的方式，約可以14個頻道位元表示出128至1600個位元 的使用者資料，因此不需增加光碟片面積，即可提升光碟 片的資料儲存量。且因最大訊號坑寬度與習知讀軌寬度約 略相等，所以使用的光學機構可沿用習知機構。 第4圖係繪示根據本發明較佳實施例之另一種頻道位 元、訊號坑與讀出信號的對應圖。 請參照第4圖，根據頻道位元40形成訊號坑42, 44。 訊號坑44僅有一種寬度變化，而訊號坑42具有兩種寬度 變化，其中訊號坑42的第二寬度約與讀軌的寬度相同， 而第一寬度則窄於第二寬度。訊號坑44的寬度與訊號坑42 的第一寬度相當。讀出信號46同樣具有不同的強度變化， 以表示訊號坑42, 44寬度的不同變化。應用與上述實施例 相同的頻道位元定義，便可對頻道位元解碼。 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------裝--------訂---------線 (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社印製 535152 4 79 I twf doc/0 06 B7 五、發明說明（r) 上述的訊號坑寬度變化方式爲本發明的一較佳實施 例，本發明並不限於上述的形式。在以習知讀軌寬度爲限 下，改變訊號坑寬度，使其有多種的寬度變化。由上述實 施例可知，利用訊號坑寬度變化的方式，在不增加光碟片 面積的情況下，約可提高資料儲存容量16至200倍。 由上述本發明較佳實施例可知，應用本發明具有下列 優點。 1.利用變化訊號坑寬度的方式，提高光碟片的資料儲 存容量。 2·可與習知的機構相容。 3·可應用於各式的光學記錄媒體，如··雷射光碟、數 位影音光碟、可抹除式光碟等。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 和範圍內，當可作各種之更動與潤飾，因此本發明之保護 車B圍當視後附之申請專利範圍所界定者爲準。 -----------裝--------訂---------線 (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社印製 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 X 297公爱）Fig. 4 is a diagram showing the correspondence between another channel price, a signal pit and a readout signal according to a preferred embodiment of the present invention. Explanation of marks of I and I patterns: 10: User data 12, 20, 30, 40: Channel bits 14, 22, 32, 42, 44: Signal pits 24, 34, 46: Examples of readout signals The method of changing the width of the signal pit on the optical recording medium is applied to increase the data storage capacity of the optical recording medium. FIG. 3 is a corresponding diagram of channel bits, pits and readout signals according to a preferred embodiment of the present invention. ° Please refer to Figure 3, the signal pits 32 formed according to the channel bit 30 have two different width changes, and each signal pit 32 is symmetrical to its length_ direction. In this embodiment, the second width of the signal pit 32 is about the same as the width of the optical disc, and the first width is narrower than the second width. Because the signal pit 32 has two width changes, each channel bit needs to be redefined to indicate the width change of the signal pit 32. In this embodiment, the channel bit is defined in four states: the channel bit '0' represents a plane having no change in width, such as the surface of a disc or the bottom of a signal pit, and the channel bit 'Γ represents the first type of signal pit Width edge, channel bit '2' represents the second width edge of the signal pit, and channel bit '3' represents the first width of the signal pit changes to the second width of the signal pit, or the second width of the signal pit changes to The first width of the signal pit. 5 ------------ ^ -------- tT --------- line · (Please read the note on the back before filling in this page) Economy The paper size printed by the Consumer Cooperatives of the Ministry of Intellectual Property Bureau applies the Chinese national standard (CNS) A4 specification (210 X 297 mm) 535152 4 7 9 1 t \ ν Γ doc / 0 0 6 A7 B7 V. Description of the invention (β ) Because the signal pits 32 have different width changes, the intensity of the readout signal is affected not only by changes in the signal pits and the surface of the disc, but also changes in the width of the signal pits also affect the intensity of the readout signal by the optical pickup. As shown in the readout signal 34, the readout signal 34 has three different intensity changes, which respectively represent different width changes of the signal pit 32. Depending on the changes in the intensity of the readout signal 34, channel bits with different definitions can be decoded. By changing the width of the signal pit, using the same number of channel bits can represent more user data, because each channel bit can represent more information. In this embodiment, the signal pit width is changed to increase the intensity change of the readout signal, and the increased readout signal intensity change is used to improve the data storage efficiency and increase the data storage capacity. Using the above method of changing the signal pit width, about 14 channel bits can represent user data of 128 to 1600 bits. Therefore, the data storage capacity of the disc can be increased without increasing the area of the disc. And because the maximum signal pit width is approximately equal to the width of the conventional reading track, the optical mechanism used can follow the conventional mechanism. Fig. 4 is a diagram showing a correspondence between another channel bit, a signal pit and a readout signal according to a preferred embodiment of the present invention. Referring to FIG. 4, the signal pits 42, 44 are formed according to the channel bit 40. The signal pit 44 has only one width change, and the signal pit 42 has two width changes. The second width of the signal pit 42 is about the same as the width of the read track, and the first width is narrower than the second width. The width of the signal pit 44 is equivalent to the first width of the signal pit 42. The readout signal 46 also has different intensity changes to indicate different changes in the width of the signal pits 42, 44. By applying the same channel bit definition as in the above embodiment, the channel bit can be decoded. 6 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ----------- installation -------- order --------- (Please read the notes on the back before filling in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 535152 4 79 I twf doc / 0 06 B7 V. Description of the invention (r) The above-mentioned signal pit width change method is as follows: A preferred embodiment of the present invention, the present invention is not limited to the above-mentioned form. Under the limitation of the conventional reading width, the signal pit width is changed to make it have various width changes. It can be known from the above embodiments that, by using the method of changing the width of the signal pit, the data storage capacity can be increased by about 16 to 200 times without increasing the area of the optical disc. As can be seen from the above-mentioned preferred embodiments of the present invention, the application of the present invention has the following advantages. 1. Increase the data storage capacity of the optical disc by changing the width of the signal pit. 2. Compatible with known institutions. 3. It can be applied to all kinds of optical recording media, such as laser discs, digital video discs, erasable discs, etc. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. Therefore, the present invention The protection vehicle B shall be determined by the scope of the attached patent application. ----------- Installation -------- Order --------- line (Please read the precautions on the back before filling this page) Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs The paper size printed by the consumer cooperative is applicable to the Chinese National Standard (CNS) A4 (21〇X 297 public love)