經濟部智慧財產局員工消費合作社印製 1 1244641 [發明之技術領域] 本發明係關於一種用以再生作為CDR0M資料而儲存 之壓縮音頻資料（audio data)之再生裝置。 [習知技術] 曰頻資料之紀錄一般係以將類比（anal〇g)信號作A/D 變換後之PCM信號等音波（wave)信號作為基本。在此，將 音頻信號加以高壓縮成之MP3(MPEGLayer3)等之壓縮音 頻仏號較為普及。依據此MP3，可獲得一般音波信號之j 〇 七左右之壓縮率，且能容量有限之記憶媒體中儲存倍之 信號。 β此ΜΡ3格式之資料係被儲存於各種之記憶媒體，但 是，如果將該資料儲存於CD時，則係以cdr〇m資料格 式進行儲存。亦即，將MP3資料作為一般數位數據（dighai data)處理，且將該Mp3資料解碼成cdr〇m資料，並儲存 於CD。 因此，將CD作為記錄媒體之壓縮音頻之再生中，係 將CDROM貝料予以解碼，並求得壓縮音頻資料（Μ”資 料），並將該資料再予以解碼而求得音頻資料。 [發明所欲解決之問題] 此處，CDR〇M資料之解碼器⑶係習知之技術，此 1亦針對壓縮音頻之解碼器LSI正在開發中。因此，在一 般清况下係將藉由CDR〇M解碼器而解瑪所得之資料壓 縮成壓縮音頻資料’並轉交㈣縮音頻解瑪器'，以進行音 頻資料之再生^此類之全體動作係由另外之微電 本紙張尺度適用中國國家標準^規格⑽X 297公釐） 313011 --------^--------- (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 1244641 A7 _____ 五、發明說明（ ） 腦（micro computer)所控制。 然而，CDROM資料與MP3資料，其格式不同，且進 行解碼之單位之資料區塊大小亦不同。一般而言，CDROM 資料之區塊尺寸係比MP3資料之區塊尺寸大。 因此，無法將以CDROM解碼器所解碼之資料，直接 供給至壓縮音頻解碼器。所以，控制全體動作之微電腦中， 暫時儲存CDROM解碼器LSI之解碼資料，並以壓縮音頻 LSI所需之資料單位，供給至壓縮音頻LSI。 因而’微電腦必須進行一邊控制2個lSI，同時接收 CDROM資料並加以緩衝，並將符合壓縮音頻格式大小之 負料供給至壓縮音頻解碼|§之處理。所以，需要一種作為 微電腦其處理能力高者。 本發明係有鑑於上述問題而創作者，並以提供一種能 減少微電腦之負擔，且能進行有效率之處理之壓縮音頻資 料之再生裝置為目的。 ' [解決問題之手段] 本發明係用以再生將作為CDR0M資料而儲存之壓縮 音頻資料之再生裝置，其特徵為具有：將CDR〇M資料予 以解碼之CDROM解碼裝置；將由解碼所得之壓縮音頻 料，以CDROM資料之解碼所求得之資料單位依序儲存之 儲存裝置；將該記憶裝置所儲存之壓縮音頻資料，以 音頻資料之儲存資料單位依序讀出之讀 '' 衣罝，以及將由 該讀出裝置所讀出之壓縮音頻資料予以解碼之壓 碼裝置。 日須解 本紙張尺度適用中國國家標準（CNS)A4規格（21G X 297公£) 313011 --------^--------- (請先閱讀背面之注意事項再填寫本頁) 2 1244641 A7 五、發明說明（ 如此，將以CDR0M解碼裝 頻資料，以壓縮音頻之儲存資料抑予=解碼所得之愿縮音 同之資料格式之間之寫入讀出，、位崎出。因而，可將不 出來進行。所以，處理程序變得:H1個儲存之寫入讀 制也較容易。 目當簡單，而且全體之控 又，則述之CDR0M解碼裝置士 音頻解碼裝置，係最適合形 、Μ出裝置'以及壓縮 又，前述儲存係最適合於時間：半導f晶片。 料依位址順序而儲存。 列之則述壓縮音頻資 [發明之實施形態] 以下，依據圖面而說明本發 訂 施形態）。 之實施形恶（以下稱為實 經濟部智慧財產局員工消費合作社印製 f!圖為表示本實施形態之壓縮音頻再生裝置之構 壓縮後之壓縮音頻資料係作為CDROM資料而儲存在 W之中°拾波器12係具有發光部以及受光部並將對 應來自cmo之反射光(或透過光)之信號予以輸出。由拾 波器12所得之信號係供給至RF· CDDSpi4，而於此處進 行高頻放大，同時解調成CDR〇m資料。 所得之CDROM資料係供給至微電腦1 6，同時亦供給 至解碼器LSI20。微電腦16係由所供給之CDROM資料， 來判疋β CDROM資料是針對壓縮音頻資料或是針對一般 之資料。而且，控制此後之解碼器LSI20之動作。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐 解碼器LSI20係具有CDROM解碼器22、資料介面 (I/F)24、以及壓縮音頻解碼器26，且於資料介面（i/f)24 313011 1244641Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1 1244641 [Technical Field of the Invention] The present invention relates to a reproduction device for reproducing compressed audio data stored as CDROM data. [Known technology] Recording of frequency data is generally based on sonic signals (wave signals) such as PCM signals after analog signal (anal0g) conversion. Here, compressed audio signals such as MP3 (MPEGLayer3), which are highly compressed audio signals, are popular. According to this MP3, a compression rate of about 七 7 of a general sonic signal can be obtained, and a signal that can be doubled in a storage medium with a limited capacity can be obtained. β This MP3 format data is stored in various memory media. However, if the data is stored on a CD, it is stored in the cdr0m data format. That is, the MP3 data is processed as general digital data (dighai data), and the Mp3 data is decoded into cdrom data and stored on a CD. Therefore, in the reproduction of compressed audio using CD as a recording medium, the CDROM material is decoded to obtain compressed audio data (M "data), and the data is then decoded to obtain audio data. [发明 所Problems to be solved] Here, the decoder CDR of CDROM data is a known technology. This 1 is also under development for a decoder LSI for compressed audio. Therefore, under normal circumstances, it will be decoded by CDROM. The data obtained by the device and the decompression are compressed into compressed audio data 'and transferred to the decompressed audio demapping device' for the reproduction of the audio data. ^ All such actions are performed by other microelectronics. This paper applies the Chinese national standard. ^ Specifications ⑽X 297 mm) 313011 -------- ^ --------- (Please read the notes on the back before filling out this page) Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs 1246441 A7 _____ 5. Description of the invention () Controlled by the brain (micro computer). However, CDROM data and MP3 data have different formats, and the size of the data block of the decoding unit is different. Generally speaking, the block of CDROM data The size is larger than the block size of MP3 data. Therefore, the data decoded by the CDROM decoder cannot be directly supplied to the compressed audio decoder. Therefore, the microcomputer that controls the overall operation temporarily stores the decoded data of the CDROM decoder LSI. The data unit required for the compressed audio LSI is supplied to the compressed audio LSI. Therefore, the 'microcomputer must control 2 lSI while receiving CDROM data and buffer it, and supply negative materials that meet the size of the compressed audio format to the compression. Audio decoding | § processing. Therefore, there is a need for a microcomputer that has high processing power. The present invention was created in view of the above problems, and provides a compressed audio that can reduce the burden on the microcomputer and can perform efficient processing The purpose is to reproduce data. '[Means for solving problems] The present invention is a reproduction device for reproducing compressed audio data to be stored as CDROM data, which is characterized by a CDROM decoding device that decodes CDROM data. ; The data obtained by decoding the compressed audio material and decoding the CDROM data A sequential storage device; the compressed audio data stored in the memory device is read sequentially in units of the audio data storage data, and the compressed audio data to be read by the reading device Coded device for decoding. The paper size must be in accordance with China National Standard (CNS) A4 (21G X 297K) 313011 -------- ^ --------- (Please Read the precautions on the back before filling this page) 2 1244641 A7 V. Description of the invention (So, CDROM will decode the loaded frequency data, and the compressed audio storage data will be suppressed = the decoded version of the desired reduction is the same as the data format It reads and writes, and bit is out. Therefore, it can not be carried out. Therefore, the processing procedure becomes: writing and reading of H1 stores is also easier. The purpose is simple, and the control of the whole, then the CDR0M decoding device is described as an audio decoding device, which is most suitable for the shape, output device, and compression. Moreover, the aforementioned storage system is most suitable for time: a semiconducting f chip. The materials are stored in the order of addresses. The following list describes the compressed audio data. [Embodiments of the invention] Hereinafter, the embodiments of the present invention will be described with reference to the drawings. The implementation of evil (hereinafter referred to as printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Real Economy) The picture shows the structure of the compressed audio reproduction device of this embodiment. The compressed audio data is stored as CDROM data in W ° The pickup 12 has a light-emitting section and a light-receiving section and outputs a signal corresponding to the reflected light (or transmitted light) from the cmo. The signal obtained by the pickup 12 is supplied to RF · CDDSpi4, and is performed here Amplify at high frequency and demodulate into CDROM data at the same time. The obtained CDROM data is supplied to the microcomputer 16 and also to the decoder LSI 20. The microcomputer 16 is judged by the supplied CDROM data. Compress audio data or general data. In addition, control the operation of the subsequent decoder LSI20. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm decoder LSI20 has CDROM decoder 22, data Interface (I / F) 24, and compressed audio decoder 26, and data interface (i / f) 24 313011 1244641
訂---------線 (請先閱讀背面之注意事項再填寫本頁) 313011 4 1244641Order --------- Line (Please read the precautions on the back before filling this page) 313011 4 1244641
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5 消 五 1244641 、發明說明（ 二到：U’反覆讀出並轉送。另—方面如果區塊已經結束， 廿到疋處理疋否結束（S16)，如果尚未結束，則^回到川， 、針對下-個之區塊進行讀出轉送處理。纟S16中， 經結束時，結束處理。 其次，依據第4圖說明壓縮音頻解碼器26之動作。壓 縮音頻解碼器26係如第4圖所示。首先將旗標F設定為 1⑽）。藉此’由於讀出資料會從資料介面（i/f)24轉送過 Λ因此接收該貝料（S22)。接收該資料之後，將旗標F返 :至L(S23)，並將所接收之資料予以解碼（s24)。藉此，可 得到音頻資料，並將其輸出。 其次，狀區塊是否結束（S25)，如尚未結束的話， 返回到24並進行解碼，❹果結束的話，㈣定處理是否 結束⑻6)。該判定如果尚未結束時，則返回⑵，而如、果 為結束時，則結束處理。 如此’在本實施形態之中，係為了使CD_解碼号 與壓縮音頻編碼資料單晶片化，故將cdr〇m解碼後之資 料保管在資料緩衝記憶體上’並僅以來自微電腦之轉送命 二而可在LSI内部將必要之資料自動地轉送至音頻處理 區塊。因此，微電腦不需理會資料之接收發送以及不同之 2=式間之資料尺寸的差異，而可得到大幅削減微電腦 之負何之功效。 2且本實施形態當中’如第2圖所示，係將資料緩衝 記憶體30之容量作成較大容量，而且該資料緩衝記憶體 30内之麼縮音頻資料係隨時皆可讀出。因此一 本紙張尺錢财關家鮮（CNS)A4祕⑵G 貝 mon --------訂--------- (請先閱讀背面之注意事項再填寫本頁} 65 消 五 1244641, invention description (two to: U 'repeatedly read and forward. In addition-if the block has ended, 廿 to 疋 processing 疋 whether to end (S16), if not, then ^ back to Sichuan, 、 Read and transfer the processing for the next block. 纟 In S16, the processing ends when it is finished. Next, the operation of the compressed audio decoder 26 will be described according to FIG. 4. The compressed audio decoder 26 is as shown in FIG. First, set the flag F to 1⑽). In this way, since the read data is transferred from the data interface (i / f) 24 to Λ, the shell material is received (S22). After receiving the data, the flag F is returned to L (S23), and the received data is decoded (s24). With this, audio data can be obtained and output. Next, whether the block is finished (S25). If it is not finished yet, it returns to 24 and decodes it. If the result is finished, it is determined whether the processing is finished (6). If the determination has not been completed, the process returns to ⑵, and if the determination is completed, the process ends. In this way, "in this embodiment, in order to make the CD_decoding number and the compressed audio coded data into a single chip, the data decoded by cdr0m is stored in the data buffer memory" and only transferred from the microcomputer. Second, the necessary data can be automatically transferred to the audio processing block inside the LSI. Therefore, the microcomputer does not need to pay attention to the sending and receiving of data and the difference in the size of the data between the two types, and can greatly reduce the effect of the microcomputer. 2 And in this embodiment, as shown in FIG. 2, the capacity of the data buffer memory 30 is made larger, and the compressed audio data in the data buffer memory 30 can be read at any time. Therefore, a paper rule, money and wealth (CNS) A4 secret book G Bei mon -------- Order --------- (Please read the precautions on the back before filling this page} 6
五、發明說明（ 1244641 料^記憶體30之壓縮音頻f料作為耐震性（anush 功能來使用亦可。亦即，即使拾波器i2無法連續再生時， 對於已儲存之I縮音頻㈣進行再生之時， 拾波器之再生，即可防止再生音之中斷。 ]籍由 而且’如果是在儲存於資料緩衝記憶體之資料範圍内 的Ί不需移動CD之拾波器，就能只在記憶體上進 再生貧料之向前搜尋（f〇rward咖⑽）或向後搜尋（_k search)。亦即，在儲存於資料緩衝記憶體％之資料範固 内，可藉由移動讀出位址之方式而移動再生之處所。 [發明之效果] 如以上之說明，依據本發明，係以壓縮音頻之儲存單 位，讀出利用CDR0M解碼裝置進行解碼所得之壓縮音頻 貧料。因此，可將不同之資料格式間之寫入讀出，以對於 一個儲存裝置之寫入讀出纟進行。所卩，處理程序變得簡 單，且全體之控制亦較為容易。 [圖面之簡單說明] 第1圖為表示實施形態之裝置之全體構成之方塊圖。 第2圖為說明資料緩衝記憶體之使用方法之圖面。 第3圖為說明資料介面（I/F)之動作之流程圖。 --------^--------- (靖先閱讀背面之;t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 第4圖為說明壓縮音頻解碼器之動作之流程圖。 [符; 號說明] 10 CD 12 拾波器 14 RF · CDDSP 16 微電腦 20 解碼器LSI 22 CDROM解碼器 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公t 313011 1244641 A7 _B7_ 五、發明說明（8 ) 24 資料介面（I/F) 26 壓縮音頻解碼器 30 資料緩衝記憶體 經濟部智慧財產局員工消費合作社印製 --------------------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 8 313011V. Description of the invention (1244641 material ^ compressed audio f of memory 30 as shock resistance (anush function can also be used. That is, even if the pickup i2 cannot be continuously reproduced, the stored I audio frequency is reproduced At that time, the reproduction of the pickup can prevent the interruption of the reproduction sound.] For this reason, 'If it is within the range of the data stored in the data buffer memory, you don't need to move the CD's pickup. The memory is searched forward (fοrward) or backward (_k search). That is, within the data range stored in the data buffer memory%, the bit can be read by moving [The effect of the invention] As described above, according to the present invention, the compressed audio storage unit reads out the compressed audio data obtained by decoding using a CDROM decoding device. Therefore, the The writing and reading between different data formats are performed by writing and reading of a storage device. Therefore, the processing procedure becomes simple, and the overall control is relatively easy. [Simplified description of the drawing] Article Figure 1 is a block diagram showing the overall configuration of the device of the embodiment. Figure 2 is a diagram explaining the use of the data buffer memory. Figure 3 is a flowchart explaining the operation of the data interface (I / F).- ------- ^ --------- (Jing first read the back; t note the matter and then fill out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Symbol; No. description] 10 CD 12 Pickup 14 RF · CDDSP 16 Microcomputer 20 Decoder LSI 22 CDROM Decoder This paper size applies to China National Standard (CNS) A4 (210 X 297 male) t 313011 1244641 A7 _B7_ V. Description of the invention (8) 24 Data interface (I / F) 26 Compressed audio decoder 30 Data buffer memory Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ---------- ---------- Order --------- Line (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297) Mm) 8 313011