經濟部智慧財產局員工消費合作社印製 4 6 0 8 6 6 A7 4847twf.doc/QQ8__B7___ 五、發明說明（（） 本發明是關於一種信號處理技術、用於數據記錄。本 發明更是關於一種系統及方法用於以類比信號紀錄數位數 據。 目前由.於半導體製造技術之商度進展，能處理大量位 元數據之數據裝置也跟著被發展。例如、數位電視（DTV) 及高畫質電視（HDTV)等高能力數據裝置，於現在及未來 之電子產品中，將成爲日常生活中之主要產品。這些高能 力數據裝置都必須具有能力，以處理大量位元數據且快速 傳送這些位元數據。因此、具有高數據記錄密度及能快速 傳送這些數據之記錄器必須因應發展，以配合高能力數據 裝置之使用。如此、拍攝自日常生活中之數據錄影信號， 就可有效的被計錄及重新在數據裝置上播放、例如在數位 電視上播放。 因此本發明提供一種用類比信號記錄數位數據之方 法’以增加記錄密度，例如100十億位元/英吋平方，此 記錄密度約爲目前時下最大密度之十倍。本發明利用一痕 ：跡側頻（Vesttigial SideBand,VSB)-調頻（FM)技術以增加雜 訊比(Signal Noise Ratio, SNR)之功率。本發明也利用一脈 衝幅度調解（Pulse Amplitude Modulation, PAM)技術來包裝 一複數個位元，而記錄成一調頻脈衝信號。再以時下狀態 (state-of-the-art)記錄磁頭來達成高記錄軌密度。 本發明提供一種用類比信號記錄數位數據之方法，利 用一痕跡側頻(VSB)技術配合調頻技術，以達成痕跡側頻_ 調頻之類比記錄及播放方法。本發明之方法包括提供一二 4 本紙張尺度適用中賴家標準（CNS)A4規格（21G x 297公爱） -------:---ί-ί裝-----------訂.--------C (請先閱讀背面之注意事項再填寫本頁) 1 4 6 0 8 6 6 a? 4847twf.doc/008 37 五、發明說明（1) (請先閱讀背面之注意事項再填寫本頁) 進位數據列。於此二進位數據列，每隔一某數個位元數據， 用一脈衝幅度調解（PAM)技術將其轉成一數値，其中某數 個位元(N-bit)數據又稱爲一某數個位元包。如此、此二進 位數據列被轉換成一符號數據列，每一符號代表該數値。 本發明之方法更這符號數據列之數値轉換成一類比信號， 而成爲一類比信號列。這類比信號列接著以調頻技術被記 錄到一記錄磁性媒介體，其中調頻脈衝信號之脈衝寬度以 細化等化技術（Sliming Equalization Technology)進行縮 減，以達成倍增記錄密度。類比信號係經由一時下狀態 (state-of-the-art)記錄磁頭來達成高記錄軌密度。如此、此 二進位數據列可以用調頻形式之類比信號，被記錄於磁性 媒介體。本方法中，每一個符號之某數個位兀包並不一定 有相等之某數個(N)。換據話說。平均後之某數個(N)不一 定爲整數。但是整數之某數個(N)是一較佳方式。 經濟部智慧財產局員工消費合作社印製 本發明之方法更利用痕跡側頻-調頻(VSB_FM)技術以 增加20分貝（dB)之雜訊比功率以達至55分貝之程度可 供後續技術之利用。本發明之方法利用一脈衝細化等化技 術，以達成倍增記錄密度，如此、記錄密度可達成每一英 吋可記錄200,000調頻遷越信號。因此、於一英吋中共可 達成某數個(N) X 200,000個調頻遷越信號’其中某數個(N) 較佳約爲二至五位元。於記錄誤差容許範圍’本發明也包 括高於五位元之方式。本發明之方法更利用時下狀態 (state-of-the-art)記錄磁頭來達成高記錄軌密度’其中錄軌 密度可達到100,000軌/英吋，並且利用液體軸承來減少 5 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 1 460866 4847twf.doc/008 B7 五、發明說明（>) 約ίο百分比之軌道空間誤差。上述記錄磁性媒介，可句 括一卡式錄放影機(VCR)，也可包括〜磁碟。 ^ (請先閱讀背面之注意事項再填寫本頁) 當本發明之方法應用於播放時’上述電位類比信號列 可從記錄磁性媒介體取出。再將此電位類比信號列取樣回 復成一符號數據列’接著再將此符號數據列回復成—二進 位數據列，用於播放。 i 本發明根據上述’提供一記錄數位數據之系統用類比 信號記錄數位數據。此系統包括一二進位數列某數個 二個位元(N-bit)數位類比轉換器（DAC)、及—類比記錄單 元。本發明之系統更可包括一某數個位元⑼^⑴類比數位 轉換器(ADC)，使用於播放狀態。 經濟部智慧財產局員工消費合作社印製 於上述中’此二進位數列包括欲被記錄之資料。此數 位類比轉換器’接收此二進位數列並且每隔某數個位元數 據(N-bit)將之轉換成一數値，以一符號代表之，其中此某 數個位兀數據又稱爲一某數個二個位元包。當此二進位數 列經此某數個位元類比數位轉換器轉換後，此二進位數列 被轉換成一符號數據列，每一符號例如有一類比電位對應 產生。這些類比電位形成一電位類比信號列，而被記錄於 上述類比記錄單元。此類比記錄單元更包括有一調頻記錄 功能及一解調頻記錄功能。如此、類比信號列可用調頻形 式被記錄於類比記錄單元中，也可再被播放出來。 當上述之某數個二個位元類比數位轉換器，使用於播 放狀態時，其接收類比記錄單元之輸出，即類比信號列， 並將之轉換回復成一二進位數據列。此回復後之二進位數 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 460866 4847twf.doc/008 A7 B7 經濟部智慧財產局員工消費合作杜印製 五、發明說明（l/;) 據列再被送至一顯示器，進行播放。 於上述中，類比記錄單元包括一-^式錄放影機(VCR) ’ 也可包括一磁碟機，也可包括一磁帶記錄元件。此類比記 錄單元更包括使用一液體軸承來減少軌道空間誤差。此類 比記錄單元更包括使用脈衝細化等化技術，以倍增記錄密 度。當此類比記錄單元不用於記錄位元數據時，此類比記 錄單元可用於其一般使用功能。 爲讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂’下文特舉一較佳實施例，並配合所附圖式，作詳 細說明如下： 圖式之簡單說明： 第1A圖繪示一傳統之類比調幅信號，此類比信號每 隔一段固定時間被取樣一點； 第1B圖繪示傳統之調頻方式以紀錄一類比調幅信 號，取自第1A圖之取樣點； 第1C圖繪示一調頻脈衝信號之脈衝寬度，以細化等 化技術進行倍縮之結果； 第2圖繪示本發明之一類比信號及其對應之二進位數 據列； 第3圖繪示本發明使用之磁阻磁頭，以調頻方式記錄 類比信號； 第4圖繪示本發明’將一二進位數據列轉換成一符號 數據列之方法；以及 第5圖繪示本發明’用類比信號記錄數位數據之一記 7 (請先閱讀背面之注意事項再填寫本頁) Γ. -裝---- 訂---------. 本紙張尺度適用中國國家標準（CNS)A4規格（210 χ.297公釐） 經濟部智慧財產局員工消費合作社印製 d 6 Ο 8 6 6 A7 4 847twf.doc/008 β7 五、發明說明（& ) 錄數位數據系統。 圖式之標記說明： 10:記錄單元 ’ 12 :調頻功能單元 ‘ 14:解調頻功能單元 16:某數個位元數位類比轉換器(DAC) 18，24 :二進位數據列 20 : 數位元件 22 : 某數個位元類比數位轉換器(DAC) 26 : 數位顯示器 MMM- (請先閱讀背面之注意事項再填寫本頁) i .I n n n ϋ 本發明使用一痕跡側頻(VSB)技術配合調頻技術，又 稱痕跡側頻-調頻技術，。，以增加20分貝之雜訊比功率。這 能利用一脈衝幅度調解（PAM)技術，以一符號數據列來記 錄一二進位數據列，其中每一符號數據代表一某數個（N) 位元（N-bit)之數値。此某數個位元又稱爲一某數個位元 包。脈衝幅度調解（PAM)技術，例如已應用在數據機上， 用以快速傳送資料。對於此二進位數據列，每隔某數個位 元就轉換成一符號數據，每一符號數據又以對應之一類比 電位之方式記錄之。上述每一個某數個位元(N-bit)包所含 之位元數目不一定都相等，雖然較佳之方式是相等的。換 句話說，平均之某數個位元(N-bit)不一定是整數。例如每 隔兩個及三個位元交替得一符號數値。詳細之符號轉換方 8 訂i -------- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作杜印製 460866 4847twf.doc/008 五、發明說明（b) 法將描述於後。 上述所增加之雜訊比，可允許本發明使用細化等化技 術（Sliming Equalization Technology)，以縮小調頻脈衝信 號之脈衝寬度，進而使得記錄密度倍增。另外、也可允許 本發明使用時下狀態（state-of-the-art)記錄磁頭，例如磁阻 磁頭（Magnetoresistive,MR)，以增加記錄軌密度。因爲本 發明使用痕跡側頻-調頻技術，本發明有足夠之信號雜訊 比功率可供使用，以增加數據記錄密度。如此，本發明將 三者技術適當修改組合後，可以非習知預期地大量提高數 位數據之記錄密度。較詳細之實施例描述如下。 利用區塊伺服驅動技術(Sector Servo Technology)對時 下狀態之磁碟來存取數據時，其需要一新的信號處理方 式’以配合調頻技術，進行映像(Video)記錄。假定類比信 號’例如映像信號，是以調幅方式記錄，其傳同上雜訊必 然很大。這是由於磁頭與記錄物質之間的接觸面品質不 良。痕跡側頻-調頻技術(VSB-FM)因此被Ampex提出，以 排除接觸面品質不良之問題。此技術可參見E.E Anderson 發表之文章：”Motion Picture and Television Engineers, Vol.67，Noll，pp 722, Nov. 1958”。因爲 Ampex 提出之痕跡 側頻-調頻技術（VSB-FM)可有效排除接觸面品質不良之問 題，於映像記錄上’信號雜訊比(SNR)之功率可提升20分 貝。此提升量又稱爲調頻提升量。然而、調頻提升量必須 用記錄頻寬來換取。於痕跡側頻-調頻技術(VSB-FM)中， 其沒有足夠之頻寬可用，但是20分貝之提升量可以降低 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) l·· 裝 i'------訂---------^ΓνΓ f 460866 A7 4847twf.doc/008 β7 五、發明說明) 十倍之雜訊値。這使得卡式錄放影方式成爲可行之方法， 其傳統上可達約30分貝之信號雜訊比功率。若以磁阻磁 頭(MR)來記錄映像，其典型地可達約35分貝之信號雜訊 比功率。因調頻提升量，痕跡側頻-調頻（VSB-FM)記錄方 式共可有55分貝可用。 這痕跡側頻-調頻（VSB-FM)記錄方式，基本上是用調 頻方式以記錄類比信號。第1A圖繪示一傳統之類比調幅 信號，此類比信號每隔一段固定時間被取樣一點。第1B 圖是傳統之調頻方式以紀錄一類比調幅信號，取自第1A 圖之取樣點。 請參照第1A圖及第1B圖，一類比調幅信號每隔一段 固定時間U被取樣一點，如此得到一相對應之幅度& ° # 幅度&，以調頻方式進行記錄，如第1B圖所示。每 越脈衝，對應於每一取樣點，而被記錄在一記錄軌上° ^ 越脈衝之間之距離AL反比於幅度ai之大小。距離Δ：ί & 可正比於幅度a,(未示）。其選擇決定於實際設計。假走W 足夠之取樣點數目，根據取樣點之幅度，此類比信號 確地被重建。爲了倍增記錄密度，遷越脈衝之寬度必須_ 減。請參照第1C圖，一般記錄密度之脈衝寬度’以細# 等化技術技術將之縮減。如此、遷越脈衝之間之解析®^1 以增加，記錄密度因此倍增。此一細化等化過程約__ 分貝。 除了細化等化之考慮外，本發明還須考慮其他因素’ 以有效利用可用之信號訊比功率。第2圖繪示本發明之 10 本紙張尺度適用中國國家標準（CNS〉A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本真〕 .裝 IT---------Λν· 經濟部智慧財產局員工消費合作社印製 A7 B7 460866 4847twf.doc/008 五、發明說明（》） 類比信號及其對應之二進位數據列。請參照第2圖，圖中 本發明利用一脈衝幅度調解（PAM)原則，以類比方式來記 錄一二進位數據列。圖中類比號被取樣多點，每一取樣點 又稱之爲一符號。一符號之數値是由一某數個位元包所 得。圖中某數個（N)例如等於二（N=2 bits)。實際上，平均 某數個(N)不一定是整數。另外、如果信號誤差允許的話， 某數個（N)可大至十。如果信號誤差太大，其將造成信號 失真。 於此例，因某數個（N)等於二，其有四個準位。每一 準位也對應於一電位値。經轉換後，此二進位數據列組成 一電位類比信號。此電位類比信號可用痕跡側頻-調頻 (VSB-FM)記錄方式，記錄於一磁性紀錄媒介體，例如一 磁碟’一磁帶及一卡式錄放影機卡帶，三者其一。 本發明利用此脈衝幅度調解（P AM)原則，類似於數據 機(Modem)所使用之一脈衝幅度調解（PAM)方法，如此可 記錄大量位元數據’並且可快速傳送位元數據，以供數據 顯示裝置，如數位電視等，之錄製與播放。 本發明利用卡式錄放影機(VCR)來記錄位元資料，其 可達至一百萬位元毎英吋之記錄密度。目前、用磁阻磁頭 (MR)來記錄映像’其典型可以有35分貝之信號雜訊比。 本發明更利用痕跡側頻-調頻(VSB-FM)記錄方式，總共可 達55分貝。爲了增進記錄軌密度，其約需又15分貝，如 此可將傳統之3000軌/英吋，提升至100,000軌/英吋。其 方法描述於後。爲了倍增於記錄軌上之記錄密度，如前述， 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 裝 i-------訂---------. 經濟部智慧財產局員工消費合作杜印製 經濟部智慧財產局員工消費合作社印製 460866 4847twf.doc/008 五、發明說明（q) 其需7分貝。所以、仍有33分貝剩下，可供脈衝幅度調 解(PAM)方法之使用。於33分貝之基本要求下，其可達成 每一調頻遷越信號可對應儲存5位元資料。 時下之卡式錄放影機可達至100,000遷越信號/英吋。 當7分貝用來倍增於記錄軌上之記錄密度，卡式錄放影機 可達之200,000遷越信號/英吋。以一中心頻寬爲5MHz之 痕跡側頻-調頻(VSB-FM)記錄方式爲例，在20%外加頻寬 下，一調頻遷越信號對應儲存5位元資料，是在可接受之 誤差範圍之內。如第1Α圖所示，一取樣點對應一遷越信 號。如此’本發明可達至5個位元之位元包。如此、於一 記錄軌上，其記錄密度可達至1百萬位元/英吋。 於上述本發明中，如何增進記錄密度之方法已描述。 進一步要考慮的是，如何增進記錄軌密度。傳統之記錄軌 密度僅有3000軌/英吋。以下本發明揭露一方法以達至本 發明預期之記錄軌密度100,000軌/英吋。如此，根據本發 明，總記錄密度可達100 Gbit/英吋平方，Gbit=十億位元。 這比IBM公司所宣稱之1〇 Gbit/英吋平方，高出十倍。 於西元1975年，Kanai等人發表一文章（IEEE on Magnetics, Vol. Mag-11，No. 5，pp.1212-1214, Sept. 1975)。 文章討論用磁阻磁頭以達成記錄軌密度100,000軌/英吋之 可能性。理論上100,000軌/英吋是可達成，然而其必需有 足夠之信號雜訊比功率。於其文章發表之時，100,000軌/ 英吋無法被達成，由於信號雜訊比功率不足。另外、在磁 碟機之機械方面，爲降低數據存取伺服驅動誤差，傳統之 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -------..---Is 一-裝 il — (請先閱讀背面之注意事項再填寫本頁)Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 6 0 8 6 6 A7 4847twf.doc / QQ8__B7 ___ V. Description of the Invention (() The invention relates to a signal processing technology for data recording. The invention relates to a system The method and method are used to record digital data by analog signals. At present, due to the development of semiconductor manufacturing technology, data devices capable of processing large amounts of bit data have also been developed. For example, digital television (DTV) and high-definition television ( High-capacity data devices such as HDTV will become the main products in daily life in current and future electronic products. These high-capacity data devices must have the ability to process a large amount of bit data and quickly transmit these bit data. Therefore, recorders with high data recording density and the ability to quickly transmit these data must be developed to match the use of high-capacity data devices. In this way, data recording signals taken from daily life can be effectively recorded and replayed Playing on a data device, such as on a digital television. The invention therefore provides an analogy The method of recording digital data is to increase the recording density, such as 100 billion bits per inch square. This recording density is approximately ten times the current maximum density. The present invention uses a trace: Vesttigial SideBand, VSB) -Frequency Modulation (FM) technology to increase the power of Signal Noise Ratio (SNR). The present invention also uses a Pulse Amplitude Modulation (PAM) technology to package a plurality of bits and record them as a Frequency-modulated pulse signals. State-of-the-art recording heads are used to achieve high recording track density. The present invention provides a method for recording digital data with analog signals, which is matched with a trace side frequency (VSB) technology. FM technology to achieve trace side frequency _ analog frequency recording and playback method. The method of the present invention includes providing one or two 4 paper standards applicable to CNS A4 specifications (21G x 297 public love) ---- ---: --- ί-ί equipment ----------- order .-------- C (Please read the notes on the back before filling this page) 1 4 6 0 8 6 6 a? 4847twf.doc / 008 37 V. Description of the invention (1) (Please read the notes on the back first (Fill in this page again) Carry data column. In this binary data column, every other certain number of bit data is converted into a number using a pulse amplitude modulation (PAM) technique, in which some number of bits ( N-bit) data is also called a certain number of bit packets. Thus, the binary data sequence is converted into a symbol data sequence, and each symbol represents the number. The method of the present invention changes the number of the symbol data sequence. It is converted into an analog signal and becomes an analog signal train. This type of specific signal sequence is then recorded to a recording magnetic medium using FM technology, in which the pulse width of the FM pulse signal is reduced by Sliming Equalization Technology to achieve doubled recording density. The analog signal achieves a high recording track density via a state-of-the-art recording head. In this way, the binary data sequence can be recorded on a magnetic medium using an analog signal in the form of frequency modulation. In this method, the number of bit packets of each symbol does not necessarily have the same number (N). In other words. The number (N) after averaging is not necessarily an integer. But a certain number (N) of integers is a better way. The method of printing the present invention by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs makes use of the trace side frequency-frequency (VSB_FM) technology to increase the noise specific power of 20 decibels (dB) to a level of 55 decibels for subsequent technology. . The method of the present invention utilizes a pulse thinning technology to achieve a multiplied recording density. In this way, the recording density can achieve 200,000 FM transition signals per inch. Therefore, in one inch, the Chinese Communist Party can achieve a certain number of (N) X 200,000 FM transition signals. Among them, some number of (N) is preferably about two to five bits. In the recording error tolerance range ', the present invention also includes a mode higher than five bits. The method of the present invention further utilizes a state-of-the-art recording head to achieve a high recording track density, where the recording track density can reach 100,000 tracks / inch, and the use of a liquid bearing to reduce 5 paper sizes is applicable. China National Standard (CNS) A4 specification (210 X 297 mm) A7 1 460866 4847twf.doc / 008 B7 V. Description of the invention (>) Approximately a percentage of orbital space error. The recording magnetic medium may include a cassette recorder (VCR) or a magnetic disk. ^ (Please read the precautions on the back before filling out this page) When the method of the present invention is applied to playback 'The above-mentioned potential analog signal sequence can be taken from the recording magnetic medium. This potential analog signal sequence is then sampled back into a symbol data sequence ', and then this symbol data sequence is returned into a binary data sequence for playback. i The present invention provides a system for recording digital data in accordance with the above-mentioned analog signal for recording digital data. The system includes a number of binary digits (N-bit), a digital analog converter (DAC), and an analog recording unit. The system of the present invention may further include a certain number of digital converters (ADCs), which are used in a playback state. Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The binary digits listed above include the information to be recorded. This digital analog converter 'receives this binary digit sequence and converts it into a number every certain number of bit data (N-bit), which is represented by a sign, where the number of bit data is also called a Some two-bit packet. After the binary digit sequence is converted by a number of bit analog-to-digital converters, the binary digit sequence is converted into a symbol data sequence, and each symbol, for example, has an analog potential corresponding to it. These analog potentials form a potential analog signal string and are recorded in the above-mentioned analog recording unit. This type includes a frequency modulation recording function and a demodulation frequency recording function more than the recording unit. In this way, the analog signal sequence can be recorded in the analog recording unit in FM format, and can also be played back. When some of the two-bit analog-to-digital converters mentioned above are used in the playback state, it receives the output of the analog recording unit, that is, the analog signal sequence, and converts it back into a binary data sequence. The binary digits after this reply are 6 The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 460866 4847twf.doc / 008 A7 B7 Consumption Cooperation between Employees and Intellectual Property Bureau of the Ministry of Economic Affairs (L /;) The data is then sent to a display for playback. In the above description, the analog recording unit includes a video recorder (VCR), may also include a disk drive, and may also include a magnetic tape recording element. This type includes the use of a liquid bearing to reduce orbital space errors more than the recording unit. This class includes the use of pulse thinning and other thinning techniques to double the recording density. When the analog recording unit is not used for recording bit data, the analog recording unit can be used for its general use function. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is exemplified below, and in conjunction with the accompanying drawings, the detailed description is as follows: Brief description of the drawings: FIG. 1A A conventional analog AM signal is shown, and the analog signal is sampled at a fixed period of time; Figure 1B shows a traditional FM method to record an analog AM signal, taken from the sampling point of Figure 1A; Figure 1C Shows the pulse width of a frequency-modulated pulse signal, which is reduced by the thinning and equalization technique. Figure 2 shows an analog signal of the present invention and its corresponding binary data sequence. Figure 3 shows the use of the present invention. A magnetoresistive head records analog signals in a frequency-modulated manner; FIG. 4 illustrates the method of converting a binary data string into a symbol data column of the present invention; and FIG. 5 illustrates one of the present invention recording digital data with an analog signal. Note 7 (Please read the precautions on the back before filling in this page) Γ. -Installation ---- Order ---------. This paper size is applicable to China National Standard (CNS) A4 (210 χ. 297 mm) Intellectual Property of the Ministry of Economic Affairs Co-op printed staff d 6 Ο 8 6 6 A7 4 847twf.doc / 008 β7 V. invention is described (&) recorded digital data system. Explanation of the marks of the drawings: 10: Recording unit '12: FM function unit '14: Demodulation frequency function unit 16: Some number of digital analog converter (DAC) 18, 24: Binary data column 20: Digital element 22 : A number of bit analog digital converters (DAC) 26: Digital display MMM- (Please read the precautions on the back before filling this page) i .I nnn ϋ The present invention uses a trace side frequency (VSB) technology with frequency modulation Technology, also known as trace side-frequency-FM technology. To increase the noise-specific power by 20 dB. This can use a pulse amplitude modulation (PAM) technology to record a binary data sequence with a symbol data sequence, where each symbol data represents a certain number of (N) bits (N-bits). These certain bits are also called a certain number of bit packets. Pulse amplitude modulation (PAM) technology, for example, has been applied to modems to quickly transfer data. For this binary data sequence, every few bits are converted into symbol data, and each symbol data is recorded in a way corresponding to an analog potential. The number of bits contained in each of the above-mentioned N-bit packets is not necessarily equal, although the preferred methods are equal. In other words, the average number of bits (N-bits) is not necessarily an integer. For example, every two and three bits alternate to obtain a symbol 値. Detailed symbol conversion party 8 order i -------- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Employee Cooperative Cooperation of Intellectual Property Bureau of the Ministry of Economic Affairs Du printed 460866 4847twf.doc / 008 5. Invention Description (b) The method will be described later. The increased noise ratio described above allows the present invention to use slimming equalization technology to reduce the pulse width of the FM pulse signal, thereby doubling the recording density. In addition, the present invention may also allow a state-of-the-art recording head, such as a magnetoresistive (MR) head, to increase the recording track density. Because the present invention uses a trace side frequency-frequency modulation technique, the present invention has sufficient signal-to-noise ratio power available to increase the data recording density. In this way, the present invention can undesirably increase the recording density of digital data by combining the three technologies with appropriate modifications. A more detailed embodiment is described below. When Sector Servo Technology is used to access the current state of the magnetic disk to access data, it needs a new signal processing method 'to cooperate with the frequency modulation technology for video recording. It is assumed that the analog signal ', such as a video signal, is recorded in an amplitude modulation manner, and its transmission noise must be large. This is due to the poor quality of the contact surface between the magnetic head and the recording material. Trace side frequency-frequency modulation (VSB-FM) technology was therefore proposed by Ampex to eliminate the problem of poor contact surface quality. This technique can be found in the article published by E.E Anderson: "Motion Picture and Television Engineers, Vol. 67, Noll, pp 722, Nov. 1958". Because the trace proposed by Ampex Side Frequency-Frequency Frequency Modulation (VSB-FM) can effectively eliminate the problem of poor contact surface quality, the power of the signal-to-noise ratio (SNR) on the image record can be increased by 20 dB. This boost is also called FM boost. However, the amount of FM boost must be exchanged for the recording bandwidth. In Trace Side Frequency-Frequency Modulation Technology (VSB-FM), it does not have enough bandwidth available, but a 20 dB increase can reduce 9 paper sizes. This paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). (Please read the precautions on the back before filling this page) l · · Install i '-------- Order --------- ^ ΓνΓ f 460866 A7 4847twf.doc / 008 β7 V. Description of the invention ) Ten times as much noise. This makes the cassette recording and playback method a feasible method, which traditionally can reach a signal-to-noise ratio power of about 30 dB. If the image is recorded with a magnetoresistive head (MR), it typically reaches a signal-to-noise specific power of about 35 dB. Due to the FM boost, the trace side frequency-frequency (VSB-FM) recording method has a total of 55 dB available. This trace side-frequency-frequency (VSB-FM) recording method basically uses FM to record analog signals. Figure 1A shows a conventional analog AM signal. The analog signal is sampled a little at regular intervals. Figure 1B is a traditional FM method to record an analog AM signal, taken from the sampling point of Figure 1A. Please refer to Figures 1A and 1B. An analog AM signal is sampled at a fixed interval U every time. In this way, a corresponding amplitude & ° # Amplitude & is obtained and recorded in FM mode, as shown in Figure 1B. Show. Each cross pulse corresponds to each sampling point and is recorded on a recording track. The distance AL between cross pulses is inversely proportional to the magnitude ai. Distance Δ: ί & can be proportional to amplitude a, (not shown). The choice depends on the actual design. If W is enough to sample the number of sampling points, the analog signal is indeed reconstructed according to the amplitude of the sampling points. In order to double the recording density, the width of the transition pulse must be reduced. Please refer to FIG. 1C, the pulse width of the general recording density is reduced by a thinning equalization technique. In this way, the resolution between transition pulses ® ^ 1 is increased, so the recording density is doubled. This refinement and equalization process is about __ decibels. In addition to refinement and other considerations, the present invention must also consider other factors' to effectively use the available signal-to-signal power. Figure 2 shows the 10 paper sizes of the present invention, which are applicable to Chinese national standards (CNS> A4 size (210 X 297 mm) (please read the precautions on the back before filling in this truth). Install IT ------ --- Λν · Printed by A7 B7 460866 4847twf.doc / 008, Employee Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (") Analog signals and their corresponding binary data columns. Please refer to Figure 2 The invention uses a pulse amplitude mediation (PAM) principle to record a binary data sequence in an analog manner. The analog number in the figure is sampled at multiple points, and each sample point is also called a symbol. The number of a symbol is determined by a It is obtained by a certain number of bit packets. For example, some (N) in the figure is equal to two (N = 2 bits). Actually, the average number (N) is not necessarily an integer. In addition, if the signal error allows, some The number of (N) can be as large as ten. If the signal error is too large, it will cause signal distortion. In this example, because a number of (N) is equal to two, it has four levels. Each level also corresponds to A potential 値. After conversion, the binary data column constitutes a potential analog signal. The bit analog signal can be recorded in a trace side frequency-frequency modulation (VSB-FM) recording method on a magnetic recording medium such as a magnetic disk, a magnetic tape, and a cassette recorder cassette, one of which is used by the present invention. The principle of pulse amplitude mediation (P AM) is similar to one of the pulse amplitude mediation (PAM) methods used by modems, so that a large amount of bit data can be recorded 'and bit data can be quickly transmitted for data display devices. Recording and playback, such as digital television, etc. The present invention uses a VCR to record bit data, which can reach a record density of one million bits per inch. At present, a magnetoresistive magnetic head ( MR) to record the image, which can typically have a signal-to-noise ratio of 35 decibels. The present invention further uses a trace side frequency-frequency (VSB-FM) recording method, which can reach a total of 55 decibels. In order to increase the recording track density, it requires about Another 15 decibels, so that the traditional 3000 tracks / inch can be increased to 100,000 tracks / inch. The method is described later. In order to double the recording density on the recording track, as mentioned above, this paper scale applies the Chinese national standard ( CNS) A4 Regulation Grid (210 X 297 mm) (Please read the precautions on the back before filling out this page) Install i ------- Order ---------. Consumer Co-operation of Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed 460866 4847twf.doc / 008 V. Description of the invention (q) It requires 7 decibels. Therefore, there are still 33 decibels left, which can be used for the pulse amplitude mediation (PAM) method. Under the basic requirement of 33dB, it can achieve 5 bits of data corresponding to each FM transition signal. Current cassette recorders can reach 100,000 transition signals / inch. When 7dB is used to double the recording density on the recording track, the cassette recorder can reach 200,000 transition signals / inch. Taking a trace sideband frequency modulation (VSB-FM) recording method with a center bandwidth of 5MHz as an example, at 20% of the additional bandwidth, a FM transition signal stores 5 bits of data correspondingly, which is within an acceptable error range. within. As shown in Fig. 1A, a sampling point corresponds to a migration signal. In this way, the present invention can reach a bit packet of 5 bits. Thus, on a recording track, the recording density can reach 1 million bits / inch. In the above-mentioned present invention, a method for improving the recording density has been described. Further consideration is how to increase the recording track density. The conventional recording track density is only 3,000 tracks / inch. The present invention below discloses a method to achieve a recording track density of 100,000 tracks / inch expected by the present invention. Thus, according to the present invention, the total recording density can reach 100 Gbit / inch square, Gbit = Gigabit. This is ten times higher than the 10 Gbit / inch square claimed by IBM. In 1975, Kanai et al. Published an article (IEEE on Magnetics, Vol. Mag-11, No. 5, pp. 1212-1214, Sept. 1975). The article discusses the possibility of using a magnetoresistive head to achieve a recording track density of 100,000 tracks / inch. 100,000 tracks / inch is theoretically achievable, but it must have sufficient signal-to-noise ratio power. At the time of his article publication, 100,000 tracks / inch could not be achieved due to insufficient signal-to-noise ratio power. In addition, in terms of the mechanics of the magnetic disk drive, in order to reduce the data access servo drive error, the traditional paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). --Is 一-装 il — (Please read the notes on the back before filling this page)
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4 6 0 8 6 6 A7 4847twf.doc/008 β7 五、發明說明) 滾珠軸承必須用液體軸承代之。第3圖繪示本發明使用 典型磁阻磁頭。磁阻元件爲一磁性薄膜，形成於〜基极上之 薄膜之寬度爲At。若是At等於〇·2微米’則記錄軌密。 是100,000軌/英吋。 '度 於本發明中，因爲採用調頻方式記錄數據，有〇Λ — 円2〇分 貝之調頻提升量，如此100,000軌/英吋之記錄軌密可以，奉 成。此部份，約需15分貝之信號雜訊比功率。而採用^ 體軸承爲磁碟機之數據存取伺服驅動（servo) ’其空間準& 可達至1微英吋，或是10%之軌間距。 上述本發明方法之結論如下；本發明利用痕跡彻]__ 調頻(VSB-FM)記錄方式，以提升信號雜訊比功率至5S分 貝，其中15分貝用以達成100,000軌/英吋之記錄軌密，7 分貝用以達成倍增於磁軌上之記錄密度，而33分貝用於 脈衝幅度調解（PAM)方法之使用。本發明達成一記錄密度 100 Gbit/英吋平方，其中記錄誤差約在l(T1Qbit之程度。 本發明之記錄密度約十倍於傳統最佳之記錄密度。 以下，本發明也提供一系統，使用上述方法，以記錄 位元數據。 對於一個數位錄影系統，其所有圖像及聲音皆以一二 進位數據列記錄。此二進位數據列也可以是一般之資料’ 並不一定限定於數位錄影系統。利用本發明之方法’一一 進位數據列，例如，可經由卡式錄放影機記錄之。如第4 圖所示，一二進位數據列00011110111110011011，對應於 第2圖，比如’以每兩個位元轉換成一符號，而變成一符 13 本紙張反度適用中國國家標i (CNS)A4規^^⑺x 297公楚）~" "" 先閱讀背面之>i意事項再填寫本頁) -^δτ· 114 6 0 8 6 6 A7 4847twf.doc / 008 β7 V. Description of the invention) Ball bearings must be replaced by liquid bearings. Fig. 3 shows a typical magnetoresistive head used in the present invention. The magnetoresistive element is a magnetic thin film, and the width of the thin film formed on the ~ base is At. If At is equal to 0.2 micron ', the track density is recorded. It's 100,000 tracks / inch. In the present invention, because the data is recorded by using the frequency modulation method, there is an FM boost of 〇Λ-円 20 decibels, so a recording track density of 100,000 tracks / inch can be achieved. This part requires about 15dB of signal-to-noise power. The data access servo drive using the ^ body bearing as the disk drive's space standard & can reach 1 microinch, or 10% of the track pitch. The conclusion of the above-mentioned method of the present invention is as follows; the present invention uses a trace-to-frequency modulation (VSB-FM) recording method to increase the signal-to-noise ratio power to 5S decibels, of which 15 decibels are used to achieve a 100,000 track / inch track density 7 dB is used to achieve the recording density doubled on the track, and 33 dB is used for the pulse amplitude modulation (PAM) method. The present invention achieves a recording density of 100 Gbit / inch square, in which the recording error is about 1 (T1Qbit). The recording density of the present invention is about ten times the traditional best recording density. Below, the present invention also provides a system for using The above method is used to record bit data. For a digital video recording system, all images and sounds are recorded in binary data lines. This binary data line can also be general data. It is not necessarily limited to digital video recording systems. .Using the method of the present invention 'one by one data sequence, for example, it can be recorded by a cassette recorder. As shown in Figure 4, a binary data sequence is 00011110111110011011, which corresponds to Figure 2, such as' to every two Each bit is converted into a sign, and it becomes a sign. 13 This paper is inversely applicable to the Chinese National Standard i (CNS) A4 ^^ ⑺x 297 Gongchu) ~ " " " Read the meanings on the back and then (Fill in this page)-^ δτ · 11
C 經濟部智慧財產局員工消費合作社印製 460866 4847twf.doc/008 五、發明說明（丨\ ) 號數據列0132332123。此符號數據列形成—類比信號，利 用脈衝幅度調解(PAM)方法達成。每一符號之數値可用— 電{αι記錄之。因此、此符遗數據列又轉成爲—電位類比信 號列。 第5圖繪示本發明，用類比信號記錄數位數據之一記 錄數位數據系統。請參考第5圖，本系統包括一記錄單元 10。此記錄單元10是以痕跡側頻-調頻(VSB-FM)方式，記 錄如第4圖之電位類比信號。記錄單元10中又包括一調 頻功能單元12及一解調頻功能單元14，其中調頻功能單 元12用於記錄模態，解調頻功能單元14用於播放模態。 記錄單元10要記錄之一二進位數據列18，先由一數 位元件20產生。位元件20也可以是一數位介面，以提供 二進位數據列18。此二進位數據列18再由一某數個位元 數位類比轉換器16進行脈衝幅度調解(ΡΑΜ)過程。如此， 二進位數據列18被轉成一類比信號，例如以電位形式輸 出給記錄單元10，其電位値對應於符號値。此二進位數據 列18如此被記錄於記錄單元10。對記錄單元1〇，其只是 錄存一類比信號，並不需特別之數位轉換功能。當記錄單 元10不使用於記錄二進位數據列18時，可執行其本有之 正常功能。於此數位記錄系統中，如前文所述，每一符號 數値，代表Ν個位元之數値。Ν可爲2-10之間，其中2_5 是較佳之値。平均後之Ν可爲整數及非整數。 當錄存於記錄單元10之記錄媒介體之類比信號，欲 被播放時，類比信號經解調頻功能單元14解調後，回復 14 本紙張尺度適用中國國家標準CCNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 裝··------訂i:-------Γ 經濟部智慧財產局員工消費合作社印製 4 6 0 8 6 6 A7 4847twf.doc/008 07 五、發明說明（（V ) 後之類比信號被輸入到一某數個位元類比數位轉換器22。 此某數個位元類比數位轉換器22,依脈衝幅度調解（PAM) 方法，將回復後之類比信號轉成一二進位數據列24。在誤 差允許範圍之下（10 _1Q bits) ’回復後之二進位數據列24等 於原始二進位數據列18。回復後之二進位數據列24再被 輸入到一數位顯示器26 ’例如數位電視。上述中，記錄單 元10可包括卡式錄放影機(VCR)及其類似裝置。本發明之 方法可供快速及大量傳送數位數據之使用。在新的下一代 數位產品，有很大之應用。 經濟部智慧財產局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 本發明特徵如下，本方法可以用類比信號，達成極高 數位記錄密度。本方法利用一痕跡側頻-調頻技術以增加 雜訊比之功率。因此允許本發明也利用一脈衝幅度調解 (PAM)技術來包裝一複數個位元，而記錄成一調頻脈衝信 號。本方法也利用細化等化技術，進行縮減調頻脈衝信號 之脈衝寬度，以達成倍增記錄密度。再以時下狀態（state-of-the-art)記錄磁頭來達成高記錄軌密度。採用液體軸承 之數據存取伺服驅動裝置，以降低記錄軌間距誤差。本發 明將習知之技術，做一些修改及獨特之組合後，使得數位 記錄密度及其傳輸速度能大量提升。 雖然本發明已以一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 護範圍當視後附之申請專利範圍所界定者爲準。 本紙張尺度適用中國國家標準（CNS〉A4規格（210 X 297公爱）C Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 460866 4847twf.doc / 008 V. The data of invention description (丨 \) No. 0132332123. This symbolic data column forms an analog signal, which is achieved using the Pulse Amplitude Modulation (PAM) method. The number of each symbol is available-recorded by electricity {αι. Therefore, the data column of this symbol is turned into a potential analog signal column. Fig. 5 illustrates a digital data recording system according to the present invention, which uses one of the analog signals to record digital data. Please refer to FIG. 5, the system includes a recording unit 10. The recording unit 10 records a potential analog signal as shown in FIG. 4 in a trace side frequency-frequency modulation (VSB-FM) method. The recording unit 10 further includes an FM function unit 12 and a demodulation frequency function unit 14, wherein the FM function unit 12 is used for recording modes, and the demodulation frequency function unit 14 is used for playback modes. The recording unit 10 records a binary data sequence 18, which is first generated by a digital element 20. The bit device 20 may also be a digital interface to provide a binary data array 18. The binary data sequence 18 is further subjected to a pulse amplitude modulation (PAM) process by a certain number of digital analog converters 16. In this way, the binary data column 18 is converted into an analog signal, and is output to the recording unit 10 in the form of a potential, for example, whose potential 値 corresponds to the symbol 値. The binary data sequence 18 is thus recorded in the recording unit 10. For the recording unit 10, it only records an analog signal and does not need a special digital conversion function. When the recording unit 10 is not used to record the binary data column 18, it can perform its normal function. In this digital recording system, as described above, the number of symbols per symbol represents the number of N bits. N can be between 2-10, with 2-5 being the better. The averaged N may be an integer or a non-integer. When the analog signal recorded in the recording medium of the recording unit 10 is to be played, the analog signal is demodulated by the demodulation frequency function unit 14 and then returned to 14 This paper size applies the Chinese National Standard CCNS) A4 specification (210 X 297 public) Li) (Please read the precautions on the back before filling out this page) 装 ·· ------ Order i: --------- Γ Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 4 6 0 8 6 6 A7 4847twf.doc / 008 07 V. Description of the invention (The analog signal after (V) is input to a certain number of bit analog digital converters 22. This number of bit analog digital converters 22, according to the pulse amplitude The mediation (PAM) method converts the analog signal after the reply into a binary data column 24. Below the allowable error range (10 _1Q bits) 'The binary data column 24 after the reply is equal to the original binary data column 18. The reply The second binary data sequence 24 is input to a digital display 26 ', such as a digital television. In the above, the recording unit 10 may include a cassette recorder (VCR) and the like. The method of the present invention can provide a fast and large amount The use of transmitting digital data. In the new generation This product has great applications. It is printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). The features of this invention are as follows. This method can use analog signals to achieve extremely high digital recording density. The method uses a trace side-frequency-frequency modulation technique to increase the power of the noise ratio. Therefore, the present invention also allows a pulse amplitude modulation (PAM) technique to be used to pack a plurality of bits and record it as an FM pulse signal. The method It also uses the thinning and equalization technology to reduce the pulse width of the FM pulse signal to achieve a doubled recording density. The state-of-the-art recording head is used to achieve a high recording track density. The use of liquid bearings Data access servo drive device to reduce the recording track pitch error. The present invention makes a number of modifications and unique combinations of known techniques to make digital recording density and its transmission speed greatly improved. Although the present invention has a better The examples are disclosed as above, but it is not intended to limit the present invention. Anyone skilled in the art will not depart from the essence of the present invention. Within the scope and scope, various modifications and retouching can be made, so the scope of protection of the present invention shall be determined by the scope of the attached patent application. This paper size applies to Chinese national standards (CNS> A4 specification (210 X 297 public) Love)