200523795 玖、發明說明： 【發明所屬之技術領域】 本發明係有關於-種影音組合基絲置及其侧裝置，特別有關 於-種可編輯播放隨身碟中影音資料之影音組合基座裝置。 【先前技術】 _習知刪隨身碟可以提供MP3資料之儲存及播放功能 ’如圖一^斤 示，該MP3隨身碟i之八型聰接頭(Mype刪咖抓必需直接 由-電腦域2之A型USB姉(A_type USB reeeptade)21連結，使該 廳隨身碟1自1：腦主機2中下載傳輸刚、WMV格式的音樂壓縮 檔案’該槽賴連結及編輯主麵完全掌縣電齡機2之編輯軟體 中而僅食b以單向傳輸方式來將應t樂資料播案載入該碰3隨身碟 中儲存或播放，各單機之Mp3隨身碟i彼此間無法直接傳輸資料，且 各單機之MP3隨身碟1亦無法與其他媒體，如硬碟、光碟機、光碟燒 ，器或DVD燒騎等大容量儲存裝置連轉輸資料，導致該刚隨 身碟1不但在資料更新、編輯上受麻制，且在實際的操作功能上， 也僅^作為MP3音樂資料賴放器之魏而麟相當單調，無法提供 較多的產業利用價值以吸引消費者購買慾望。 習知MP3隨身碟！與習知USB隨身碟(未示)内部結構上大致相 5同樣具有USB控制器與快閃記憶艘，而快閃記憶趙之大小貝慎使 2之使用便繼息息湖，㈣記⑽容量愈大者，使用者便可儲 子愈多資料或音樂檔案’但應注意到整個隨身碟成本最高的部份便是 =閃記億趙，而且習知MP3隨身碟丨因為具有吸引人的聰播放功 月' 故般在市面上出售之價格高於習知隨身碟甚多；當使用者賭買 了習知隨身碟之後，卻要花費更高的t用去構買習知删隨身碟i， :對於其巾最高成本之制記髓卻無法共通使用，對㈣者而言實 屬遺憾與浪費。 " 【發明内容】 本發明揭示一種影音組合基座裝置，包含用以連接USB裝置之 200523795 USB連接器；OTG控制器，耦接USB連接器，用以存取USB裝置； 隨機存取記憶鱧，麵接OTG控制器，用以暫存讀取自usb裝置之壓 縮影音資料；解碼引擎，耦接OTG控制器，用以解碼壓縮影音資料成 並輸出經解碼之壓縮影音資料；PC周邊裝置連接器，叙接〇TG控制 器，用以連結PC周邊裝置，使得qTG控制器透過pc周邊裝置連接 器將驗影音資料存入PC周邊裝置中；以及内建電池及直流對直流轉 換器，内建電池耦接直流對直流轉換器，以供應影音組合基座裝置之 工作電壓；較佳地，USB連接器為a型聰插槽，以供連接傳統之隨 身碟，而擴充為影音齡裝置；影音組合基座裝置與聰裝置剛完成 連接之初始化程序後，影音組合基座裝置檢視USB裝置中之播案配置 表，以對應產生影音檔案結構於隨機存取記憶艘之中，以便利後續使 用者之操作。 本發明亦揭7F-種影音組合基座裝置，包含：肋連接USB裝置 之USB連接器，· 〇TG控制器，麵接USB連接器，用以存取㈣裝置； 麵存取記舰，祕otg鋪m轉碼引擎，祕該0TG 控制器；以及PC周邊裝置連接器，叙接該〇TG控制器，用以連結pc 周邊裝置，使得OTG控制器透過PC周邊裝置連接器存取pc周邊裝 置；其中，當OTG控_自USB裝置讀取_影音資料並賴縮影 音資料暫存至隨機存取記紐之時，影音編解碼引擎可解碼並輸出壓 縮影曰資料’以回應於第—外部命令；而當影音組合基座裝置自外部 接收影日資料之時’ n編解碼引擎可將影音資料壓縮編碼並暫存至 隨機存取記憶體，以回應於第二外部命令。 ▲本發明進一步揭示一種0TG控制器，包含··唯讀記憶趙；隨機存 取記憶趙；微控繼，墟賴記麵顿赫取記紐；QTG邏輯 制電路叙接微控制器，隨機存取記憶體介面，叙接〇TG邏輯控制 電路用以輕接外部隨機存取記憶體；編碼/解碼介面，麵接〇丁G邏輯 ，制電路肖以搞接影音編解碼引擎，·輸出入緩衝單元，耦接〇丁^邏 輯控制電路，序列介面引擎，輕接輸出人緩衝單元；以及〇见實體層 200523795 電路，序列介面引擎；其巾，OTG邏輯控制電路可藉㈣TG實體 層電路、序列介面引擎、以及輸出入緩衝單元自外部連接之USB裝置 讀取壓縮影音資料並將壓_音#料暫存至外部隨機存取記憶體。 更進一步地，OTG控制器可包含影音編解碼引擎以解碼並輸出壓 縮影音資料，或者，影音編解碼引擎可將影音資料壓縮編碼並暫存至 隨機存取記舰，而〇TG控更包含人機介面，用以減小型顯示 器以及複數個操作按鍵，小型顯示器提供操作資須訊，而操作按鍵則 用以控制OTG控制器之運作模式；pc周邊裝置介面，麵接〇TG邏輯 控制電路，用以輕接PC周邊裝置，pc周邊裝置介面可為jqe介面、 1394介面、或者USB介面；以及鎖相迴路，用以提供第一時脈與第二 時脈，分別麵接微控制器及0TG實趙層電路，以供其運作，第一時脈 較佳地遠低於第二時脈。 【實施方式】 圖一係本發明之影音組合基座(d〇cking base)裝置3之一具體實施 例，影音組合基座裝置3包含USB連接器31、OTG(On-The-Go，簡稱 OTG)控制器32、隨機存取記憶體(rand〇m access memory ^ RAM)33、編解碼引擎(enc〇der/dec〇der，簡稱 c〇DEC)34、PC 周邊裝 置連接器35、内建電池36及直流對直流轉換器37 ,其中： (a) USB連接器31，其型式不拘，可為USB A_TYpE、USB B τγρΕ或 USB mim-AB連接頭，較佳地為標準a型USB插槽，用以插接習知 隨身碟1之A型USB接頭11 ,如技藝人士所了解，各式USB連接 器之間可以藉由適當的轉接線予以轉接。 (b) OTG控制器32耦接USB連接器31，以控制該USB連接器31所連 結之USB裝置4或影音組合基座裝置3之播案系統(FILE SYSTEM) 管理、連結及資料存取，OTG控制器32並協調控制隨機存取記憶 體33及編解瑪引擎34之運作。 (c) OTG控制器32熬接隨機存取記憶體(ran(jom access mem〇ry，簡稱 RAM)33 ’以做為〇TG控制器32資料存取或處理之資料暫存區。隨 200523795 機存取記憶體33之型式不限可為同步動態隨機存取記憶體 (synchronous DRAM，簡稱SDRAM)、靜態隨機存取記憶體(static RAM，簡稱SRAM)、及快閃記憶體(flashmemory)等記憶體元件。 ⑷編解碼引擎34耦接OTG控制器32,作為OTG控制器32之壓縮影 音資料輸入編輯或輸出播放之編碼(ENCODE)或解碼(DECODE)之 裝置，且該編解碼引擎34包含輸入端341及輸出端342，輸入端341 及輸出端342之型式不限，可為SPI介面、IIS介面、序列(SERIAL) 介面或並列(PARALLEL)介面，以供對外連結液晶電視(LCD TV)、 機上盒(SET TOP BOX)、個人數位助理器(pda)、DSC、數位攝影機 (DV)、手機、掃描器(SCANNER)或MFP等裝置，以輸入mpeg格 式之影音壓縮資料或JPEG壓縮影像圖片資料給編解碼引擎34，或 將編解碼引擎34已解壓縮及解碼之影音資料傳送至上述液晶電視 (LCD TV)、SET TOP BOX、個人數位助理器(pDA)、DSC、數位攝 影機(DV)、CELL PHONE、印表機(PRINTER)或MFP等裝置中播放 或輸出。 (e) PC周邊裝置連接胃35麵接OTG控制器32 ’用以對外連結pC周邊 裝置，pc周邊裝置連接器35之型式不限，例如為ΑΤΑρι介面或快 閃記憶趙存取介面，PC周邊裝置可為USB大姆碟、讀卡機、硬碟、 光碟機及可讀寫CD/DVD燒錄機等裝置，由控㈣Μ透過 pc周邊裝置連接器35緣縮影音資料存入pc周邊裝置中或將 pc周邊裝置中所儲存之壓_音資料透過pc周邊裝置連接器％ 讀入OTG控制器32中。 Ζίΐ36連結直賴直細^37，料直㈣直鱗換器37 轉換輸出騎f壓供〇TG控· 32切作，錢直騎直流轉換 H之3^拘’可為昇紅直流對直流之電荷邮腿证 可將内建電池36之電壓昇高猶g控制器32、隨機存取 、Γ解碼引擎34及pc周邊裝置連接器35等電路所需之 工作電壓，例如··將u伏直流龍昇壓產生2 5伏、3 5伏及5伏 200523795 等直流電壓之電源輸出。 根據本發明所揭示之如圖二的影音組合基座裝置3的新穎架構， 可以便利使用者直接將手邊既有之傳統隨身碟1擴充為Mp3隨身碟， 使得傳統隨身碟1中之快閃記憶體獲得充分之發揮；另一方面，pc周 邊裝置連接器35可以為IDE連接器、1394連接器、快閃記憶體連接器 或者USB連接器，以ide連接器為例，可以方便使用者直接將手邊既 有之PC硬碟或者DVD燒錄器經由PC周邊裝置連接器35連接於影音 組合基座裝置3上，使得使用者可以將傳統隨身碟丨中之資料或者音 樂格式檔案備份於PC周邊裝置中，或者將pc周邊裝置中之資料或者 音樂格式播案更新至傳統隨身碟1，甚至無須啟動個人電腦並等待其冗 長之開機程序。 ' 請再配合圖三所示，為圖二所示之0TG控制器32之電路方塊圖 之一較佳具體實施例，0TG控制器32包括微控制器32卜唯讀記憶體 322、隨機存取記憶體323、OTG邏輯控制電路324、PC周邊裝置介面 325、隨機存取記憶體介面326、輸出入緩衝單元、序列介面引擎 328、OTG實體層電路329、編碼/解碼介面330、人機介面321以及可 程式化鎖相迴路332，其中：微控制器321協調控制諸多單元之運作， 以控制資料傳輸路徑、存取、解瑪、編瑪與省電機制，微控制器321 耦接唯讀記憶體322與隨機存取記憶體323，於初始化階段，微控制器 πι自唯讀記憶體322載入程式碼至隨機存取記憶體幻3，初始化完畢 後便利用隨機存取記憶趙323運作該程式碼協調控制諸多單元之運 作，OTG控制器32可藉由編碼/解碼介面330搞接編解碼引擎34，以 及藉由人機介面32麵接小型顯示器以提供使用者操作資須訊，人機介 面32亦可耦接複數個操作按鍵，以供使用者之簡單操作，而pc周邊 裝置介面325可對外麵接PC周邊裝置連接器％，舉例❿言，pc周邊 裝置介面325可以為IDE介面、1394介面、快閃記憶體介面或者 介面，以提供使用者大量資料之備份路徑，完全不需倚賴個人電腦之 複雜操作，並可節省大量之耗電。 200523795 請繼續參考@二，OTG實體層電路329料麵接圖二之USB連接 器3卜用以連接傳統隨身碟！，以播放刪音樂為例，剛連接上傳統 隨身碟1時’影音組合基座裝置3與傳統隨身碟〗進行訊號握手 (handshake)，以判定雙方之主從關係並決定訊號傳輸之速度，於此實施 例中，影音組合基座裝置3為主而傳統隨身碟j為從，因此由〇TG控 制器32下達指令給傳統隨身碟！，首先微控制器321會經由〇tg邏輯 控制電路324、輸出入緩衝單元327、序列介面引擎328、以及OTG實 體層電路329，下達命令以搜尋傳統隨身碟i播案結構中應音樂檔 案，並將傳統隨身碟1檔案結構中碰3音樂檔案以預定方式產生Mp3 音樂檔案結構，經由隨機存取記憶趙介面326儲存於圖二之隨機存取 記憶體33，較佳地為同步動態隨機存取記憶體，此Mp3音樂檔案結構 較佳地佔據同步動態隨機存取記憶體固定之區域，以供〇TG控制器32 之查詢，並藉由人機介面321顯示於影音組合基座裝置3上之小型顯 不器(未示），以供使用者參考。當使用者選擇某一首Μρ3音樂進行播 放時，微控制器321會經由〇TG邏輯控制電路324、輸出入緩衝單元 327、序列介面引擎328、〇TG實體層電路329向傳統隨身碟丨下達讀 取資料之命令，連續地將複數首MP3音樂經過錯誤更正後寫入隨機存 取記憶體33，以充分運用隨機存取記憶體33之空間，之後便將〇tg 實體層電路329與傳統隨身碟1間之匯流排訊號關閉，以達到完全節 電，然後OTG邏輯控制電路324開始讀取隨機存取記憶體33中之音 樂資料，轉送給編解碼引擎34進行解碼播放；若使用者選擇到隨機存 取記憶體33中之音樂播放，都不必啟動USB匯流排進行資料傳輸，而 若使用者一直重複播放隨機存取記憶體33中之音樂，其耗電程度則相 當低，因為其間之運作只需經由隨機存取記憶體33、〇TG邏輯控制電 路324、以及編解碼引擎34。 更進一步地，根據本發明之影音組合基座裝置3可獨立地利用編 解碼引擎34將外部音樂訊號進行壓縮編碼而暫存至隨機存取記憶體％ 中’待資料錄製完畢或已經錄製至快填滿隨機存取記憶體33時，再一 200523795 起搬移至指定目的地，例如傳統隨身碟i中，以節省USB匯流排之耗 電。可程式化鎖相迴路332可藉由填入不同的參數而產生不同時脈， 舉例而言，當影音組合基座裝置3之0TG控制器32決定本身為主機 控制器(host controller)時’較佳地，可程式化鎖相迴路332提供微控制 器321以及主要數位邏輯部分時脈CLKA，例如30兆赫(MHz),而對 於運作於USB2.0之0TG實體層電路329則供應時脈CLKB給0TG 實體層電路329，例如480兆赫之時脈，因此，當影音組合基座裝置3 將OTG實體層電路329與時脈CLKB關閉時則會十分省電，而影音組 合基座裝置3利用一般乾電池之使用時間長短則端賴使用者之使用習 慣與目的而有不同。 進一步參閱圖四所示，為將本發明之影音組合基座裝置3連結習 知之USB裝置4，纟巾，USB《置4可為任何符合USB大量儲存協定 之裝置或其他符合USB 0TG規格之裝置，而在圖三實施例中則以隨身 碟為其說_，其中，USB裝置4包含USB連接器41、USB控制器 42及PC周邊裝置連接器43，USB連接器41對内與USB控制器42 連接，對外與USB連接器31連接，該USB控制器42可為脳主機 控制器或USB裝置控制器，上述PC周邊裝置連接器％可以對外連結 PC周邊裝置431。 如圖四所示之應用例，在影音組合基座裝置3與USB裝置4連結 後’彼此韻0TG協定的規範確織此主從_，〇TG控制器％可 以透過USB連接器SI與USB裝置4所連接之pc周邊裝置糾溝通， 經由USB大量館存協定(mass storage dass pr〇t〇c〇1)的標準，便可利用 這項協定透過OTG控制器32與USB裝置4所連結符合該項協定的pc 周邊裝置431、溝通，根據本發明之0TG㈣器&内部_體可以辨 識脳裝置4所連結之PC周邊裝置431内播案結構與播案數目，以 允許OTG控制器32透過USB連接器32對_装置4所連接之pc 周邊裝置431之内部資料進行棺案管理，即⑽控制器可以直接讀取 脳裝置4之PC周邊裝置431内所有的檔案資料，也可以將槽案資料 200523795 由OTG控制器32冑入到PC周邊裝置431内記憶儲存，簡古之 合USB大量儲存標準的PC周邊裝置43丨連結於USB裝置:上， 明之影音組合基座裝置3可糊〇TG控制器32以及姆 周邊裝置431做資料管理以及影音處理。 、''200523795 (1) Description of the invention: [Technical field to which the invention belongs] The present invention relates to a kind of video and audio combination base wire and its side device, and in particular to a video and audio combination base device that can edit and play the audio and video data in a portable disc. [Prior technology] _Xizhi delete USB flash drive can provide the storage and playback function of MP3 data 'as shown in Figure 1 ^ Jin, the MP3 flash drive i type sat connector (Mype delete coffee must be directly from-computer domain 2 A-type USB sister (A_type USB reeeptade) 21 link, so that the pen drive 1 of the hall downloads and transfers compressed music files in WMV format from 1: brain host 2 In the editing software of 2 and only food b, one-way transmission is used to load the music data playback case into the touch 3 flash drive for storage or playback. The Mp3 flash drive i of each single machine cannot directly transfer data to each other, and each The stand-alone MP3 USB flash drive 1 cannot transfer data with other large-capacity storage devices, such as hard disks, CD players, CD burners, or DVD burners. As a result, the USB flash drive 1 is not only used for data update and editing. It is controlled by hemp, and in actual operation function, Wei Erlin, which is only a MP3 music data player, is quite monotonous and cannot provide more industrial use value to attract consumers' desire to buy. Learn MP3 flash drives! Know the inside of a USB flash drive (not shown) The structure is roughly similar to the 5 with a USB controller and a flash memory boat, and the flash memory Zhao Zhibei Shenshi 2 will continue to use it, remember that the larger the capacity, the user can store more data Or music file 'but it should be noted that the highest cost of the entire flash drive is = flash memory billion Zhao, and the MP3 flash drive is known 丨 because it has an attractive Cong play month', so the price sold in the market is higher than There are many custom flash drives; when users bet on buying a custom flash drive, they will spend a higher amount of time to construct a custom drive to delete the flash drive i. It is not common to the system of the highest cost of its towel It is really regrettable and wasteful for those who use it. [Summary of the Invention] The present invention discloses an audio-visual combination base device including a 200523795 USB connector for connecting a USB device; an OTG controller coupled to the USB connector For accessing USB devices; random access memory 鳢, connected to an OTG controller to temporarily store compressed video and audio data read from a USB device; a decoding engine coupled to the OTG controller to decode compressed video and audio data into And output the decoded Compress audio and video data; PC peripheral device connector, connected to 〇TG controller, used to connect PC peripheral devices, so that qTG controller stores video and audio data into PC peripheral devices through the pc peripheral device connector; and built-in battery and DC-to-DC converter, the built-in battery is coupled to the DC-to-DC converter to supply the working voltage of the audio-visual combination base device; preferably, the USB connector is a type C smart socket for connecting a traditional flash drive, The expansion is an audio-visual age device. After the audio-video combination base device and the Cong device have just completed the initialization process, the audio-visual combination base device checks the playlist configuration table in the USB device to generate the audio-video file structure corresponding to the random access memory ship. In order to facilitate the operation of subsequent users. The invention also discloses a 7F-type audio and video combination base device, which includes: a USB connector connected to a USB device by a rib, a TG controller, and a USB connector for accessing a device; otgm transcoding engine, the 0TG controller; and PC peripheral device connector, connected to the 0TG controller, to connect the pc peripheral device, so that the OTG controller accesses the pc peripheral device through the PC peripheral device connector ; Among them, when OTG controls _ reads from the USB device _ the audio and video data and depends on the temporary storage of the audio and video data to the random access memory, the audio and video codec engine can decode and output the compressed video data in response to the first-external When the video and audio combination base device receives the video data from the outside, the n codec engine can compress and encode the video data and temporarily store it in the random access memory in response to the second external command. ▲ The present invention further discloses a 0TG controller, which includes a read-only memory Zhao; a random access memory Zhao; a micro-control relay, a market-based memory, and a memory card; a QTG logic circuit connected to the microcontroller, and a random memory Take the memory interface, and connect 〇TG logic control circuit to lightly connect the external random access memory; encoding / decoding interface, connect to 〇G logic, make the circuit to connect with the audio and video encoding and decoding engine, and the output and input buffer Unit, which is coupled to the logic control circuit, the serial interface engine, and the light output buffer unit; and see the physical layer 200523795 circuit, the serial interface engine; its OTG logic control circuit can use the TG physical layer circuit and the serial interface. The engine and the input / output buffer unit read the compressed video and audio data from an externally connected USB device and temporarily store the pressure_audio # material to an external random access memory. Furthermore, the OTG controller may include a video codec engine to decode and output the compressed video data, or the video codec engine may compress and encode the video data and temporarily store it in a random access recorder, and the TG controller further includes a human The machine interface is used to reduce the size of the display and several operation buttons. The small display provides operating information and the operation buttons are used to control the operation mode of the OTG controller. The interface of the PC peripheral device is connected to the 0TG logic control circuit. The PC peripheral device can be easily connected. The interface of the PC peripheral device can be a jqe interface, a 1394 interface, or a USB interface; and a phase-locked loop to provide a first clock and a second clock, which are respectively connected to a microcontroller and an 0TG interface. For the Zhao layer circuit to operate, the first clock is preferably much lower than the second clock. [Embodiment] FIG. 1 is a specific embodiment of the docking base device 3 of the present invention. The docking device 3 includes a USB connector 31 and OTG (On-The-Go, referred to as OTG). ) Controller 32, random access memory (random access memory ^ RAM) 33, codec engine (encod / decode, abbreviated as coDEC) 34, PC peripheral device connector 35, built-in battery 36 and DC-to-DC converter 37, among which: (a) USB connector 31, its type is not limited, it can be USB A_TYpE, USB B τγρΕ or USB mim-AB connector, preferably a standard type A USB socket, It is used to connect the A-type USB connector 11 of the conventional USB flash drive 1. As the skilled person knows, various types of USB connectors can be transferred through appropriate adapter cables. (b) The OTG controller 32 is coupled to the USB connector 31 to control the management, connection and data access of the FILE SYSTEM of the USB device 4 or the video and audio combination base device 3 connected to the USB connector 31, The OTG controller 32 also coordinates the operations of the random access memory 33 and the coding engine 34. (c) OTG controller 32 receives random access memory (ran (jom access memory, RAM for short) 33 'as a temporary storage area for data access or processing by TG controller 32. With 200523795 machine The type of the access memory 33 is not limited to a memory such as a synchronous dynamic random access memory (SDRAM), a static random access memory (SRAM), and a flash memory (flash memory).元件 The codec engine 34 is coupled to the OTG controller 32 as a device for inputting, editing, or outputting encoding (ENCODE) or decoding (DECODE) of compressed video data of the OTG controller 32, and the codec engine 34 includes The types of the terminal 341 and the output terminal 342, the input terminal 341 and the output terminal 342 are not limited, and can be an SPI interface, an IIS interface, a serial interface, or a parallel interface for external connection to a LCD TV, LCD TV, Set top box (SET TOP BOX), personal digital assistant (pda), DSC, digital video camera (DV), mobile phone, scanner (SCANNER) or MFP and other devices to input mpeg format video compression data or JPEG compressed video pictures Data to codec engine 34, or The video and audio data that has been decompressed and decoded by the codec engine 34 is transmitted to the aforementioned LCD TV, SET TOP BOX, personal digital assistant (pDA), DSC, digital video camera (DV), CELL PHONE, and printer (PRINTER ) Or MFP or other devices. (E) PC peripheral device connected to the stomach 35 surface connected to the OTG controller 32 'to externally connect the pC peripheral device, the type of the PC peripheral device connector 35 is not limited, for example, the ATP interface or Flash memory access interface, PC peripherals can be USB sticks, card readers, hard disks, optical drives, and CD / DVD writers that can be read and written. The controller is controlled by the PC peripheral device connector 35 Edge miniature audio and video data is stored in the PC peripheral device or the pressure data stored in the PC peripheral device is read into the OTG controller 32 through the PC peripheral device connector%. ZO3ΐ36 links are straight and straight ^ 37, materials are straight Straight scale converter 37 conversion output rides f voltage for 0TG control · 32 cuts, money straight rides DC conversion H 3 ^ 'can be the charge of rising red DC to DC. Post card certificate can be built-in battery 36 voltage Raise the controller 32, random access, Γ decoding engine 34 and PC peripherals Set the working voltage required for the circuit such as the connector 35, for example, boosting the u volt DC dragon to generate 25 volt, 35 volt, and 5 volt 200523795 DC voltage output. According to the present invention, as shown in Figure Two The new architecture of the audio-visual combination base device 3 can facilitate users to directly expand the existing portable flash drive 1 into an Mp3 flash drive, so that the flash memory in the traditional portable flash drive 1 can be fully utilized; The pc peripheral device connector 35 can be an IDE connector, a 1394 connector, a flash memory connector, or a USB connector. Taking the ide connector as an example, it is convenient for users to directly put the existing PC hard disk or DVD at hand. The writer is connected to the audio-visual combination base device 3 via the PC peripheral device connector 35, so that the user can back up the data in the traditional pen drive or music format file to the PC peripheral device, or the PC peripheral device. Data or music format broadcasts are updated to the traditional flash drive 1 without even having to start the personal computer and wait for its lengthy boot process. 'Please cooperate with FIG. 3 as a preferred embodiment of the circuit block diagram of the 0TG controller 32 shown in FIG. 2. The 0TG controller 32 includes a microcontroller 32, a read-only memory 322, and a random access. Memory 323, OTG logic control circuit 324, PC peripheral device interface 325, random access memory interface 326, I / O buffer unit, serial interface engine 328, OTG physical layer circuit 329, encoding / decoding interface 330, human-machine interface 321 And a programmable phase-locked loop 332, in which the microcontroller 321 coordinates and controls the operation of many units to control the data transmission path, access, decoding, editing, and power saving mechanism, and the microcontroller 321 is coupled to the read-only memory The body 322 and the random access memory 323. During the initialization phase, the microcontroller loads the code from the read-only memory 322 to the random access memory 3, and it is convenient to use the random access memory Zhao 323 to operate after initialization. The code coordinately controls the operation of many units. The OTG controller 32 can connect to the codec engine 34 through the encoding / decoding interface 330 and a small display through the human-machine interface 32 to provide users with operating information. The human-machine interface 32 can also be coupled to a plurality of operation keys for simple operation of the user, and the pc peripheral device interface 325 can be connected to the PC peripheral device connector on the outside. For example, the pc peripheral device interface 325 can be IDE interface, 1394 interface, flash memory interface or interface to provide users with a backup path for a large amount of data, without relying on the complicated operation of the personal computer, and save a lot of power consumption. 200523795 Please continue to refer to @ 二. The OTG physical layer circuit 329 is connected to the USB connector 3 in Figure 2 to connect a traditional flash drive! Taking the playback of deleted music as an example, when the traditional USB flash drive 1 is connected, the video and audio combination base device 3 and the traditional USB flash drive carry out a signal handshake to determine the master-slave relationship between the two parties and determine the speed of signal transmission. In this embodiment, the video and audio combination base device 3 is the master and the traditional flash drive j is the slave, so the TG controller 32 issues a command to the traditional flash drive! First, the microcontroller 321 will issue a command to search for the music files in the traditional flash drive i broadcast structure through the logic control circuit 324, the input / output buffer unit 327, the serial interface engine 328, and the OTG physical layer circuit 329. The Mp3 music file structure is generated in a predetermined manner from the 3 flash files in the conventional flash drive 1 file structure, and stored in the random access memory 33 in FIG. 2 through the random access memory Zhao interface 326, preferably synchronous dynamic random access Memory, this Mp3 music file structure preferably occupies a fixed area of the synchronous dynamic random access memory for query by the TG controller 32, and is displayed on the video and audio combination base device 3 through the human-machine interface 321 Small display (not shown) for user's reference. When the user selects a certain MP3 music for playback, the microcontroller 321 will read to the traditional flash drive via the TG logic control circuit 324, the input / output buffer unit 327, the serial interface engine 328, and the TG physical layer circuit 329. The data fetch command continuously writes a plurality of MP3 music to the random access memory 33 after error correction, so as to make full use of the space of the random access memory 33. After that, the physical layer circuit 329 and the traditional flash drive are written. The bus signal of 1 is closed to achieve complete power saving, and then the OTG logic control circuit 324 starts to read the music data in the random access memory 33 and transfers it to the codec engine 34 for decoding and playback; if the user chooses to access the random storage It is not necessary to start the USB bus for data transmission when the music in the memory 33 is taken, and if the user keeps playing the music in the random access memory 33 repeatedly, the power consumption is relatively low, because the operation in the meantime requires only Via the random access memory 33, the TG logic control circuit 324, and the codec engine 34. Furthermore, the video and audio combination base device 3 according to the present invention can independently use the codec engine 34 to compress and encode external music signals and temporarily store them in the random access memory%. When the random access memory 33 is filled, it will be moved to a designated destination again from 200523795, such as a traditional USB flash drive i, to save the power consumption of the USB bus. The programmable phase-locked loop 332 can generate different clocks by filling in different parameters. For example, when the 0TG controller 32 of the audio-visual combination base device 3 determines that it is a host controller, Preferably, the programmable phase-locked loop 332 provides the microcontroller 321 and the clock CLKA of the main digital logic part, such as 30 megahertz (MHz), and for the 0TG physical layer circuit 329 operating on USB 2.0, the clock CLKB is provided to 0TG physical layer circuit 329, such as the clock of 480 MHz, so when the audio and video combination base device 3 turns off the OTG physical layer circuit 329 and the clock CLKB, it will save power, while the audio and video combination base device 3 uses a general dry battery The length of time depends on the user's habits and purposes. Further referring to FIG. 4, in order to connect the audio and video combination base device 3 of the present invention with a conventional USB device 4, wiper, and USB, the device 4 can be any device that conforms to the USB mass storage protocol or other devices that conform to the USB 0TG specification. In the embodiment of FIG. 3, a USB flash drive is used as an example. Among them, the USB device 4 includes a USB connector 41, a USB controller 42, and a PC peripheral device connector 43. The USB connector 41 is internally connected to the USB controller. It is connected to the USB connector 31 externally. The USB controller 42 may be a host controller or a USB device controller. The above-mentioned PC peripheral device connector may be externally connected to the PC peripheral device 431. As shown in the application example shown in Figure 4, after the video and audio combination base device 3 and the USB device 4 are connected, the specifications of the mutual 0TG agreement confirm this master-slave_, the TG controller% can communicate with the USB device through the USB connector SI 4 connected PC peripheral devices communicate through the USB mass storage agreement (mass storage dass pr0t〇c〇1) standard, you can use this agreement to connect to the USB device 4 through the OTG controller 32 to comply with the According to the PC peripheral device 431 and communication of this agreement, according to the 0TG device & internal device of the present invention, the broadcast structure and number of broadcasts in the PC peripheral device 431 connected to the device 4 can be identified to allow the OTG controller 32 to communicate via USB. The connector 32 manages the internal data of the PC peripheral device 431 connected to the _device 4, that is, the controller can directly read all the file data in the PC peripheral device 431 of the 脳 device 4 and can also record the slot data. 200523795 It is stored in the PC peripheral device 431 by the OTG controller 32. It is a simple and convenient USB mass storage standard PC peripheral device 43 丨 Connected to the USB device: On, the Mingzhi AV combination base device 3 can be controlled by TG. Device 32 and Mu Zhou The side device 431 performs data management and audiovisual processing. , ''
請參閱圖四所示，以下兹再列舉數個資料解碼播放及編碼操 式來進-步_其資料存取路徑，由USB裝置4連結之pc周邊装置 43i解碼播放，當本發明之影音組合基座裝置3透過USB纟量儲存協 定與該USB裝置4之USB控制器42及PC周邊裝置431取得連結， 並確定主從義及檔案溝通與管理機辦，為了達到省電操作:目 的，取得主機(host)地位之影音組合基座裝置3之〇TG控制器％會對 位處於裝置(device)之USB裝置4之USB控制器42發出中止命令 (suspend command)令其進入省電模式，等外部觸發信號(例如按鍵、 關…等)通知需要進一步存取資料時，才會喚醒(wa^eup)裝置·有外 部觸發信號動作時，OTG控制器32會喚醒USB裝置4 ,並由先前已 取得之播案系統中找到PC周邊裝置内的檔案資料，由〇TG控制 器32之OTG實體層電路322為接收端透過USB連接器31接收來自 USB裝置4所連結之PC周邊裝置431的資料，且將該資料暫存到隨機 存取記憶體33内儲存，此時USB控制器42與OTG控制器32皆處於 工作狀態彼此傳輸資料，於此實施例中，可以便利使用者將手邊之roE 硬碟或USB硬碟，儲存大量之mp3音樂，而經由本發明之影音組合基 座裝置3直接播放出來，或者予以錄製儲存，因此本發明之影音組合 基座裝置3可以讓使用者既有之PC周邊裝置之投資獲得最大之發揮並 增添其便利性。 繼績參閱圖四所示，與圖二實施例類似地，當常用的影音資料， 例如MP3/WMA/MPEG等格式之壓縮影音資料，暫存於隨機存取記憶 體33内，可由〇TG控制器32取出並送給該編解碼引擎34進行解碼 動作’並由該壓縮碼/解碼引擎34之輸出端342將已解壓縮之影音資料 輸出播出；另一方面，使用者也可將原始影音資料經過編解瑪引擎34 12 200523795 壓縮編碼後，如壓縮編碼成MPEG或JPEG格式之影音資料，儲存於 隨機存取記憶體33，等到快滿時，再經過〇TG控制器32取出，並致 能OTG實體層電路329進行傳送，透過USB連接器31，而存入Pc 周邊裝置之大容量儲存裝置之中，例如USB硬碟；一開始0TG控制 器32欲播放USB硬碟中MP3音樂檔案時，可藉由檢視usb硬碟播案 配置表(file allocation table，簡稱FAT)，而以預定方式產生mp3音樂檔 案結構，經由隨機存取記憶體介面326儲存於圓二之隨機存取記憶體 33 ’較佳地為同步動態隨機存取記憶體，此音樂檔案結構較佳地 佔據同步動態隨機存取§己憶體固定之區域，而可藉由人機介面Ml操 作呈現，由於隨機存取記憶醴之内容會定時的充放電，因此所有暫存 於同步動態隨機存取記憶艘中播放之音樂資料以及MP3音樂檔案結 鲁 構，會於使用者終止播放後之預定時間之後逐步釋放出記憶體空間， 而逐步關閉記憶體之耗電。 請再參閱第四圖所示，進一步說明本發明之影音組合基座裝置3 中所提供之PC周邊裝置連接器35,舉例而言，為roE連接器％，以 允許使用者利用本發明之影音組合基座裝置3將之與手邊既有之硬 碟、CD燒錄機及DVD燒錄機等PC周邊裝置連結，以將pc周邊裝置 内之原始影音資料進行壓縮編碼後回存PC周邊裝置，或將pc周邊裝 置内之壓縮影音資料載入影音組合基座裝置3中進行解碼播放Y或由 影音組合基座裝置3之編解碼引擎34之輸入端341輸入原始影音資鲁 料，再經壓縮編碼回存至PC周邊裝置中，或者可以直接不需經過個人 電腦之複雜運作，而將USB連接器31所連接之USB裝置，例如為傳 統隨身碟1，内之資料進行直接備份或者燒錄至光碟片中。 綜上所述，本發明所揭示之影音組合基座裝置之實施例，並不僅 限於與USB裝置4、相同的影音組合基座裝置3或pc周邊裝置的連結 應用而已，舉例而言，USB連接器31可以連結符合USB大量儲存協 定的裝置或OTG規格的裝置，例如個人電腦、筆記型電腦、個人資料 助理器、DV、數位相機等裝置，同樣可以藉由影音資料壓賴碼、解 13 200523795 碼解壓縮播放或資料存取等操作模式及功能，來達到讓影音資料解壓 縮、解瑪播放或相互資料存取之目的。 縱上所述，本發明揭示一種影音組合基座裝置，包含用以連接usb 裝置之USB連接器；〇TG控繼，叙接USB連接器，肋存取USB 裝置；隨機存取記憶體，耦接0TG控制器，用以暫存讀取自USB裝 置之壓縮影音資料，·解碼引擎，耦接0TG控制器，用以解碼壓縮影音 資料成並輸出經解碼之壓縮影音資料；PC周邊裝置連接器，耦接〇TG 控制器，用以連結PC周邊裝置，使得OTG控制器透過PC周邊裝置 連接器將壓縮影音資料存入PC周邊裝置中；以及内建電池及直流對直 流轉換器，内建電池耦接直流對直流轉換器，以供應影音組合基座裝 置之工作電壓，·較佳地，USB連接器為A型USB插槽，以供連接傳統 之隨身碟，而擴充為影音播放裝置；影音組合基座裝置與USB裝置剛 完成連接之初始化程序後，影音組合基座裝置檢視USB裝置中之播案 配置表，以對應產生影音檔案結構於隨機存取記憶體之中，以便利後 續使用者之操作。 本發明亦揭示一種影音組合基座裝置，包含：用以連接USB裝置 之USB連接器；〇TG控制器，耦接USB連接器，用以存取USB裝置； 隨機存取記憶體，耦接OTG控制器；影音編解碼引擎，耦接該〇TG 控制器；以及pc周邊裝置連接器，耦接該0TG控制器，用以連結pc 周邊裝置，使得OTG控制器透過pc周邊裝置連接器存取PC周邊裝 置，其中’當OTG控制器自USB裝置讀取壓縮影音資料並將壓縮影 音資料暫存至隨機存取記憶體之時，影音編解碼引擎可解碼並輸出壓 縮影音資料，以回應於第一外部命令；而當影音組合基座裝置自外部 接收影音資料之時，影音編解碼引擎可將影音資料壓縮編碼並暫存至 隨機存取記憶體，以回應於第二外部命令；影音組合基座裝置與USB 裝置剛完成連接之初始化程序後，影音組合基座裝置檢視USB裝置中 之槽案配置S，赠應產生影音職__赫取記舰之中，以 便利後續使用者之操作。 200523795 本發明進一步揭示一種OTG控制器，包含：唯讀記憶體；隨機存 取記憶體；微控制器，耦接唯讀記憶體及隨機存取記憶體；〇TG邏輯 控制電路，耦接微控制器；隨機存取記憶體介面，耦接OTG邏輯控制 電路，用以耦接外部隨機存取記憶體；編碼/解碼介面，耦接0TG邏輯 控制電路，用以耦接影音編解碼引擎，·輸出入緩衝單元，耦接〇7(}邏 輯控制電路；序列介面引擎，耦接輸出入緩衝單元；以及〇TG實體層 電路’耦接該序列介面引擎；其中，OTG邏輯控制電路可藉由〇tg實 想層電路、序列介面引擎、以及輸出入緩衝單元自外部連接之USB裝 置讀取壓縮影音資料並將壓縮影音資料暫存至外部隨機存取記憶體； OTG控制器與USB裝置剛完成連接之初始化程序後，otg控制器檢 視USB裝置中之檔案配置表，以對應產生影音檔案結構於隨機存取記隹 憶體之中，以便利後績使用者之操作。 更進一步地，OTG控制器可包含影音編解碼引擎以解碼壓縮影音 資料並輸出之，或者，影音編解碼引擎可將影音資料壓縮編碼並暫存 至隨機存取記憶體，而OTG控制器更包含人機介面，用以耦接小型顯 不器以及複數個操作按鍵，小型顯示器提供操作資須訊，而操作按鍵 則用以控制OTG控制器之運作模式；PC周邊裝置介面，耦接〇TG邏 輯控制電路，用以耦接pc周邊裝置，pc周邊裝置介面可為mE介面、 1394介面、或者USB介面；以及鎖相迴路，用以提供第一時脈與第二 時脈，分別耦接微控制器及OTG實體層電路，以供其運作，第二二 · 較佳地遠低於該第二時脈。 以上所揭示之具財_之制式，係為便於義本發明之 技術内容及技術手段，並不欲拘限本發明之範鳴。舉凡一切針對本發 明之結構細部修飾、變更，或者是元件之等效替代、置換，當不脫離 本發明之發明精神及料，其範圍將由以下之中請專概圍來田界定之。 【圖式簡單說明】 圖-係習知隨身碟與電腦主機連結傳輸刪音樂資料之系統方塊 圖； 15 200523795 圖二係本發明之影音組合基座裝置之一具體實施例； 圖三係圖二中之OTG控制器的電路方塊圖之一具體實施例；以及 圖四係囷二中本發明之影音組合基座裝置之一應用實施例。 【元件符號簡單說明】 <本發明部份> 3 影音組合基座裝置 32 OTG控制器 322唯讀記憶體 324 OTG邏輯控制電路 326隨機存取記憶體介面 328序列介面引擎 330 編碼/解碼介面 332可程式化鎖相迴路 34 編解碼引擎 342輸出端 36 直流電池 4 USB裝置 42 USB控制器 431 PC周邊裝置 <習知部份> 1隨身碟 2電腦主機 31 USB連接器 321微控制器 323隨機存取記憶體 325 PC周邊裝置介面 327輸出入緩衝單元 329 OTG實體層電路 321人機介面 33 隨機存取記憶鱧 341輸入端 35 PC周邊裝置連接器 37 直流對直流轉換器 41 USB連接器 43 PC周邊裝置連接器 11 USB 埠 21 USB 埠Please refer to FIG. 4. Here are a few more data decoding playback and encoding operations to further advance the data access path. The PC peripheral device 43i connected to the USB device 4 decodes and plays. When the video and audio combination of the present invention The base device 3 obtains a connection with the USB controller 42 and the PC peripheral device 431 of the USB device 4 through the USB mass storage protocol, and determines the master-slave and file communication and management mechanism. In order to achieve the power-saving operation: the purpose is to obtain The host ’s TG controller in the audio and video combination base device 3 will issue a suspend command to the USB controller 42 of the USB device 4 in the device to enter the power saving mode, etc. An external trigger signal (such as a button, off, etc.) notifies the device when it needs further access to data. When an external trigger signal is activated, the OTG controller 32 wakes up the USB device 4, The file data in the PC peripheral device was found in the obtained broadcasting system. The OTG physical layer circuit 322 of the TG controller 32 receives the data from the PC peripheral device 431 connected to the USB device 4 through the USB connector 31 for the receiving end. And The data is temporarily stored in the random access memory 33. At this time, the USB controller 42 and the OTG controller 32 are in a working state to transmit data to each other. In this embodiment, it is convenient for the user to store the roE hard disk or The USB hard disk stores a large amount of mp3 music, and is directly played out or recorded and stored by the video and audio combination base device 3 of the present invention. Therefore, the video and audio combination base device 3 of the present invention can allow users to have existing PC peripheral devices The investment is maximized and added convenience. Refer to Figure 4 for follow-up results. Similar to the embodiment of Figure 2, when commonly used video and audio data, such as MP3 / WMA / MPEG and other compressed video and audio data, are temporarily stored in the random access memory 33 and can be controlled by TG The decoder 32 takes it out and sends it to the codec engine 34 for decoding action, and the compressed code / decoding engine 34 output terminal 342 outputs the decompressed video and audio data for broadcasting; on the other hand, the user can also send the original video and audio After the data is compressed and encoded by the engine 34 12 200523795, if the video and audio data compressed and encoded into MPEG or JPEG format is stored in the random access memory 33, when it is almost full, it is taken out by the TG controller 32 and caused Can be transmitted by OTG physical layer circuit 329, and stored in mass storage device of Pc peripheral device, such as USB hard disk, through USB connector 31; when the 0TG controller 32 wants to play MP3 music files in USB hard disk , By viewing the USB hard disk file allocation table (FAT for short), the mp3 music file structure is generated in a predetermined way, and stored in the random access of the second circle through the random access memory interface 326 Memory 33 'is preferably synchronous dynamic random access memory. This music file structure preferably occupies a fixed area of synchronous dynamic random access. § The memory is fixed and can be presented through the operation of the human-machine interface M1. The contents of the access memory will be charged and discharged regularly, so all the music data and MP3 music files temporarily stored in the synchronous dynamic random access memory ship will be gradually released after a predetermined time after the user terminates the playback. Out of the memory space, and gradually turn off the power consumption of the memory. Please refer to the fourth figure again to further explain the PC peripheral device connector 35 provided in the video and audio combination base device 3 of the present invention, for example, the roE connector% to allow users to use the video and audio of the present invention. The combination base device 3 connects it with existing PC peripheral devices such as hard disks, CD burners and DVD burners at hand to compress and encode the original video and audio data in the pc peripheral devices and save them to the PC peripheral devices. Or load the compressed audio and video data in the peripheral device of the pc into the audio and video combination base device 3 for decoding and playing Y or input the original audio and video data from the input terminal 341 of the codec engine 34 of the audio and video combination base device 3, and then compress it. The code is saved back to the PC peripheral device, or the USB device connected to the USB connector 31 can be directly backed up or burned to the USB device connected to the USB connector 31 without the complicated operation of the personal computer. Disc. In summary, the embodiments of the audio-visual combination base device disclosed in the present invention are not limited to the connection application with the USB device 4, the same audio-visual combination base device 3, or a peripheral device of the PC. For example, USB connection The device 31 can be connected to a device that conforms to the USB mass storage protocol or a device of the OTG specification, such as a personal computer, a notebook computer, a personal data assistant, a DV, a digital camera, and the like. It can also rely on the audio and video data compression code and solution 13 200523795 Code decompression and playback or data access and other operation modes and functions to achieve the purpose of video and audio data decompression, decoding and playback or mutual data access. As mentioned above, the present invention discloses a video and audio combination base device, which includes a USB connector for connecting a USB device; TG control, connecting the USB connector, rib access to the USB device; random access memory, coupling Connected to 0TG controller to temporarily store compressed audiovisual data read from USB device. Decoding engine, coupled to 0TG controller to decode compressed audiovisual data into and output decoded compressed audiovisual data; PC peripheral device connector , Coupled to the TG controller, used to connect PC peripheral devices, so that the OTG controller stores compressed video and audio data into the PC peripheral devices through the PC peripheral device connector; and built-in battery and DC-to-DC converter, built-in battery Coupling with DC-to-DC converter to supply the working voltage of the audio and video combination base device. · Preferably, the USB connector is a type A USB socket for connecting a traditional flash drive and expanding it into an audio and video playback device; After the initialization process of the connection between the combination base device and the USB device has been completed, the audio and video combination base device checks the playlist configuration table in the USB device to correspondingly generate the audio and video file structure in random access. Memory to facilitate subsequent user operations. The invention also discloses a video and audio combination base device, comprising: a USB connector for connecting a USB device; a TG controller coupled to the USB connector for accessing the USB device; a random access memory coupled to the OTG Controller; audio and video encoding and decoding engine, coupled to the 〇TG controller; and a PC peripheral device connector, coupled to the 0TG controller, for connecting the PC peripheral device, so that the OTG controller accesses the PC through the pc peripheral device connector Peripheral devices, where 'When the OTG controller reads compressed video data from a USB device and temporarily stores the compressed video data to random access memory, the video codec engine can decode and output the compressed video data in response to the first External command; and when the audio and video combination base device receives audio and video data from the outside, the audio and video codec engine can compress and encode the audio and video data and temporarily store it in random access memory in response to the second external command; the audio and video combination base After the initialization process of the device and the USB device is completed, the video and audio combination base device checks the slot configuration S in the USB device and generates the video and audio post. __ 赫 取 记 舰 之In order to facilitate the subsequent operation of the user. 200523795 The present invention further discloses an OTG controller comprising: a read-only memory; a random access memory; a microcontroller coupled to the read-only memory and a random access memory; a logic control circuit coupled to the micro-control Controller; random access memory interface, coupled to OTG logic control circuit, for coupling to external random access memory; encoding / decoding interface, coupled to 0TG logic control circuit, for coupling to audio and video codec engine, output The input buffer unit is coupled to the 〇7 (} logic control circuit; the serial interface engine is coupled to the output and input buffer unit; and the TG physical layer circuit is' coupled to the serial interface engine; among them, the OTG logic control circuit can be controlled by 〇tg The imaginary layer circuit, the serial interface engine, and the I / O buffer unit read the compressed video data from the externally connected USB device and temporarily store the compressed video data to the external random access memory; the OTG controller and the USB device have just completed the connection. After the initialization process, the otg controller checks the file configuration table in the USB device to correspondingly generate the video file structure in the random access memory, so that Operation of the user after the performance. Furthermore, the OTG controller may include a video codec engine to decode and output the compressed video data, or the video codec engine may compress and encode the video data and temporarily store it in the random access memory. The OTG controller also includes a human-machine interface for coupling a small display and a plurality of operation buttons. The small display provides operating information, and the operation buttons are used to control the operation mode of the OTG controller. PC peripheral devices Interface, which is coupled to the logic control circuit of TG for coupling to PC peripheral devices. The interface of PC peripheral devices can be mE interface, 1394 interface, or USB interface; and a phase-locked loop to provide the first clock and the second clock. Pulses, which are respectively coupled to the microcontroller and the OTG physical layer circuits for their operation, the second one is preferably much lower than the second clock. The wealthy system disclosed above is for convenience The technical content and technical means of the invention are not intended to limit the scope of the present invention. For all modifications and changes to the structural details of the present invention, or equivalent substitutions and replacements of components, Without departing from the spirit and materials of the present invention, its scope will be defined by the following: [Schematic description] Figure-is a system block diagram of a conventional USB flash drive connected to a computer to delete music data; 15 200523795 Figure 2 is a specific embodiment of the audio and video combination base device of the present invention; Figure 3 is a specific embodiment of the circuit block diagram of the OTG controller in Figure 2; and Figure 4 is the audio and video of the present invention in Figure 2 An application example of a combination base device. [Simple description of component symbols] < Part of the invention > 3 Audio and video combination base device 32 OTG controller 322 read-only memory 324 OTG logic control circuit 326 random access memory Interface 328 Serial Interface Engine 330 Encoding / Decoding Interface 332 Programmable Phase-Locked Loop 34 Codec Engine 342 Output 36 DC Battery 4 USB Device 42 USB Controller 431 PC Peripheral Device < Knowledge Part > 1 Flash Drive 2 Host computer 31 USB connector 321 Microcontroller 323 Random access memory 325 PC peripheral device interface 327 I / O buffer unit 329 OTG physical layer circuit 321 Human-machine interface 33 Random Memory 341 takes snakehead 35 PC peripheral device input terminal 37 is connected to the DC-DC converter 41 USB connector 43 PC peripheral device connector 11 USB port 21 USB port
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