591492591492
【發明所屬之技術領域】 本發明是有關於一種光碟機進退片控制電路，特別是 指一種不需偵測動作、不需使用光碟機本身之進退片鍵且 不需視窗作業系統支援之具有光碟機進退片控制電路之計 5 算機系統。 【先前技術】 以往當要使設置在電腦主機上之光碟機進退片時’最 簡單的方法就是直接按下光碟機之控制面板上的進退片鍵 ，這時光碟機的内部電路迴路會偵測光碟機目前是在進片 10 還是退片狀態後，再令光碟機執行進退片動作，因此，為 了讓使用者方便按壓該進退片鍵，光碟機的控制面板必須 外露在電腦主機機殼外，但是這樣一來，就電腦主機整體 外觀考量，卻會破壞整個電腦主機機殼的美感。所以，為 了增進美感，遂有業者在電腦主機機殼上對應於光碟機容 15 置槽開口處，設置一活動擋板將光碟機之控制面板遮蓋住 ，如此一來，當使用者欲利用光碟機之控制面板進行進退 片操作時，即必須先翻開或移除該活動擋板，以致當使用 者經常要操作該控制面板時，即必須反覆開關該活動擋板 ，造成使用上不甚方便。 20 此外，除了上述硬體控制進退片方式，使用者亦可經 由電腦之視窗作業系統以軟體控制方式執行光碟機進退片 動作，此時，視窗作業系統會先偵測光碟機是在進片狀態 還是退片狀態，然後再下命令讓光碟機執行進退片動作。 但是，由於此種方式需經過視窗作業系統繁雜命令的债測 6 591492[Technical field to which the invention belongs] The present invention relates to an optical disc drive advance and retreat control circuit, in particular to a disc with a disc that does not need to detect motion, does not use the advance and retreat keys of the optical disc drive, and does not require the support of a Windows operating system. 5 computer system for the machine advance and retreat control circuit. [Previous technology] In the past, when the disc drive set on the computer host was to advance and retreat, the easiest way was to directly press the advance and retreat keys on the control panel of the disc drive. At this time, the internal circuit of the disc drive would detect the disc. The player is currently in the state of film advance 10 or ejection, and then the optical disc drive is executed to advance and retreat. Therefore, in order for the user to press the advance and retreat key conveniently, the control panel of the optical disc drive must be exposed outside the mainframe of the computer, but In this way, considering the overall appearance of the computer mainframe, it will destroy the beauty of the entire computer mainframe. Therefore, in order to enhance the aesthetics, some industry players have set a movable baffle on the computer mainframe housing corresponding to the slot opening of the optical disc drive to cover the control panel of the optical disc drive. In this way, when users want to use the optical disc When the control panel of the machine is used for advancement and retraction, the movable baffle must be opened or removed first, so that when the user often operates the control panel, the movable baffle must be turned on and off repeatedly, resulting in inconvenience in use. . In addition, in addition to the hardware advancement and rewinding methods described above, users can also use the computer's Windows operating system to perform optical drive advancement and retraction through software control. At this time, the Windows operating system will first detect whether the optical drive is in the film advancement state. Still in the eject state, and then issue a command to let the optical disc drive perform the advance and retreat motions. However, because this method needs to be tested by the complicated command of the Windows operating system 6 591492
和判別以及驅動器的支援才能完成，需要等待較長的反應 時間，而且無法在其他作業系統下（例如DOS)進行，對於 使用者而言並不方便。 【發明内容】 5 因此，本發明之目的，在於提供一種不需繁複的視窗 作業系統偵測步驟以及不需使用光碟機本身之進退片鍵， 即能以接近硬體控制方式令光碟機進退片之具有光碟機進 退片控制電路之計算機系統。 於是，本發明具有光碟機進退片控制電路之計算機系 10 統，包括一主機板及一按鍵。該主機板與該光碟機電性連 接，用以控制該光碟機進退片。該按鍵與該主機板電性連 接，且該按鍵可被按壓以發出一控制訊號給該主機板，使 根據該控制訊號控制該光碟機執行進片或退片其中之一動 作而改變該光碟機之狀態。藉此，可在不需視窗作業系統 15 支援、不需偵測光碟機進退片狀態以及不需使用光碟機本 身之進退片鍵的情況下，透過軟體以接近於硬體的方式執 行光碟機之進退片動作，而達到縮短反應時間及方便使用 等功效。 【實施方式】 20 本發明之前述以及其他技術内容、特點與功效，在以 下配合參考圖式之較佳實施例的詳細說明中，將可清楚明 白。且在以下的說明中，相同的元件名稱將使用相同的標 號。 參閱第一圖所示，是本發明具有光碟機進退片控制電 7 591492 玫、、發明說明（3 ) SB圓^βΐϋϋβΐβ·!· _______ lliiiiiiiili ΙΙϋϋΙΜϋΙ illl mei IIIIB^iSiiSi 路之計算機系統l的第一較佳實施例，其主要包括一主機 板2及一按鍵3 主機板2主要負責其中央處理器、記憶體和顯示卡與 週邊界面的連繫，而本發明所述之光碟機4是供組設在一 5 桌上型電腦的主機機殼（圖未示）上，其通常與電腦的主翁 板2電性連接，以藉由主機板2控制光碟機4執行諸如進 退片或播放（play)等動作。而且實際上，光碟機4是透 過主機板 2 上的一 IDE(Integrated Drive Electrics，整合電 子式驅動）介面20連接至主機板2上用以管控週邊裝置的 10 —南橋晶片21。而且，光碟機4本身具有一控制面板（圖 未示），且在該控制面板上通常設有一進退片鍵，但如【 先前技術】段所述，為使主機機殼整體美觀，某些習知的 主機機殼會以一活動擋板將光碟機4的控制面板遮蓋，以 使光碟機4隱藏在主機機殼内。 15 因此，本發明之按鍵3是另外設置在計算機系統（在此 指一桌上型電腦）1的主機機殼（圖未示）上，並與主機板2上 的南橋晶片21電性連接。而本發明之特徵在於：當光碟機 4被隱藏在電腦主機機殼内時，如第一圖所示，使用者可 按壓按鍵3，此時按鍵3將發出一控制訊號給南橋晶片21， 20 驅使南橋晶片 21 之一 GPI/0(General Purpose 1/0,通用 I/O控 制訊號線）發出一 SMI(System Management Interrupt，系統管 理中斷）訊號給中央處理器（下稱CPU)及基本輸出入系統（ 下稱BIOS)22，使BIOS 22經由南橋晶片21及IDE介面20連 續發出”進片”和”退片”兩個ATAPI(Advanced Technology 8The discrimination and driver support can be completed, it needs to wait for a long response time, and it cannot be performed under other operating systems (such as DOS), which is inconvenient for the user. [Summary of the Invention] 5 Therefore, the object of the present invention is to provide a disc operating system without the complicated detection steps of the Windows operating system and the use of the disc drive's advance and retreat keys, which can make the disc drive advance and retreat in a way close to hardware control. A computer system with a disc drive advance and retreat control circuit. Therefore, the computer system of the present invention having a disc player advance and retreat control circuit includes a motherboard and a button. The motherboard is electrically connected to the optical disc for controlling the disc player to advance and retreat. The button is electrically connected to the motherboard, and the button can be pressed to send a control signal to the motherboard to control the optical disc drive to perform one of a film advancement or ejection action according to the control signal to change the optical disc drive. Of the state. In this way, without the support of the Windows operating system 15, the need to detect the advancement and retreat status of the optical disc drive, and the use of the optical disc drive's own advance and retreat keys, the software can be used to implement the optical disc drive in a manner close to the hardware. Advance and retreat film action, to achieve the effect of shortening the reaction time and convenient use. [Embodiment] 20 The foregoing and other technical contents, features, and effects of the present invention will be clearly clarified in the following detailed description of a preferred embodiment with reference to the drawings. And in the following description, the same component names will use the same reference numerals. Referring to the first figure, it is the first computer system 1 of the present invention having a disc drive advance and retreat control circuit 7 591492, invention description (3) SB circle ^ βΐϋϋβΐβ ·! · _______ lliiiiiiiili ΙΙϋϋΙΜϋΙ illl mei IIIIB ^ iSiiSi road In a preferred embodiment, it mainly includes a motherboard 2 and a button 3. The motherboard 2 is mainly responsible for the connection of its central processing unit, memory, and graphics card to the peripheral interface. The optical disc drive 4 according to the present invention is provided for grouping. It is set on a mainframe casing (not shown) of a 5 desktop computer, which is usually electrically connected with the main board 2 of the computer, so that the mainboard 2 controls the optical disc drive 4 to perform operations such as advancing and rewinding or playing (play ) And so on. In fact, the optical disc drive 4 is connected to a 10-south bridge chip 21 on the main board 2 through an IDE (Integrated Drive Electrics) interface 20 on the main board 2 for controlling peripheral devices. In addition, the optical disc drive 4 itself has a control panel (not shown), and an advance and rewind key is usually provided on the control panel. However, as described in the section of [Previous Technology], in order to make the main body casing beautiful, some custom The known host casing covers the control panel of the optical disc drive 4 with a movable baffle, so that the optical disc drive 4 is hidden in the main casing. 15 Therefore, the button 3 of the present invention is additionally provided on the mainframe (not shown) of the computer system (referred to herein as a desktop computer) 1, and is electrically connected to the south bridge chip 21 on the mainboard 2. The feature of the present invention is that when the optical disc drive 4 is hidden in the mainframe of the computer, as shown in the first figure, the user can press the button 3, and then the button 3 will send a control signal to the south bridge chip 21, 20 A GPI / 0 (General Purpose 1/0, general purpose I / O control signal line) of the South Bridge chip 21 is driven to send an SMI (System Management Interrupt) signal to a central processing unit (hereinafter referred to as a CPU) and basic input / output System (hereinafter referred to as BIOS) 22, which enables BIOS 22 to continuously issue two “API advance” and “return advance” ATAPI (Advanced Technology 8) via the south bridge chip 21 and the IDE interface 20
Attachment Packet Interface，AT封包連接介面）命令給光碟 機4，使光碟機4進行下列動作： 1. 若光碟機4處於已進片狀態，則當光碟機4收到該二 ATAPI命令時，由於光碟機4正處於進片狀態，所以第 一個”進片”命令即不被光碟機4所執行，而接續下一個” 退片”命令時，光碟機4即會執行該命令並進行退片動作 〇 2. 若光碟機4處於已退片狀態，則當光碟機4收到第一個” 進片”命令時，即執行進片動作，而於執行進片過程中 略過第二個”退片”命令。 因此，由上述第一實施例之說明可知，每當按鍵3被 按壓時，即會產生一控制訊號給南橋晶片21，使通知BIOS 22發出兩個連續之”進片”及”退片”命令控制光碟機4，而 在不需經過視窗作業系統之偵測步驟，以及不需使用光碟 機4本身之進退片鍵的情況下，令光碟機4在已退片狀態下 執行”進片”動作，或在已進片狀態下執行”退片”動作。 接著參照第二圖所示，是本發明的第二較佳實施例， 其與第一實施例不同之處在於：在主機板2的BIOS 22中更 設有一旗標暫存器23用以記錄光碟機4的進退片狀態，例 如，當光碟機4進片時，BIOS 22會將旗標的狀態值設為0( 表示進片），當光碟機4退片時，BIOS 22即將旗標的狀態 值設為1(退片）。而且一般電腦在一開機時，光碟機4應處 於已進片狀態，此時旗標狀態值之初始值即為第一狀態值 0。所以，當使用者欲令光碟機4退片而按壓按鍵3時，按 591492Attachment Packet Interface (AT packet connection interface) command to the optical disc drive 4, so that the optical disc drive 4 performs the following actions: 1. If the optical disc drive 4 is in the state of film advance, when the optical disc drive 4 receives the two ATAPI commands, due to the optical disc The drive 4 is in the film advance state, so the first "film advance" command is not executed by the optical disc drive 4. When the next "eject" command is continued, the optical disc drive 4 will execute the command and perform the eject action. 〇2. If the optical disc drive 4 is in the ejected state, when the optical disc drive 4 receives the first "advance film" command, it will execute the film advance action, and skip the second "eject" during the film advance process. "command. Therefore, from the description of the first embodiment above, it can be known that each time the button 3 is pressed, a control signal is generated to the south bridge chip 21, so that the BIOS 22 is notified to issue two consecutive "enter films" and "exit films" commands. Control the optical disc drive 4 and make the optical disc drive 4 perform the "advance film" action in the state of being ejected without going through the detection steps of the Windows operating system and without using the advance and rewind keys of the optical disc drive 4 itself. , Or execute the "eject" action when the film has been advanced. Next, referring to the second figure, it is a second preferred embodiment of the present invention, which is different from the first embodiment in that a flag register 23 is further provided in the BIOS 22 of the motherboard 2 for recording. The status of the advancement and retreat of the optical disc drive 4, for example, when the optical disc drive 4 advances the film, the BIOS 22 will set the status value of the flag to 0 (indicating the advancement of the film). Set to 1 (eject). Moreover, when the computer is turned on, the optical disc drive 4 should be in the film advance state. At this time, the initial value of the flag state value is the first state value 0. Therefore, when the user wants to eject the optical disc drive 4 and press the button 3, press 591492.
Pliei 鍵3會送出一控制訊號給南橋晶片21，使發出一SMI訊號通 知BIOS 22改變旗標的狀態值，例如，將旗標的狀態值由 第一狀態值〇(進片狀態）變成第二狀態值1(退片狀態），然 後BIOS 22根據旗標的狀態值（1)發出一”退片”命令透過南 5 橋晶片21及IDE介面20送至光碟機4，使執行退片的動作。 同樣地，當使用者欲使光碟機4進片而再次按壓按鍵3時， 旗標將由第二狀態值1變成第一狀態值0，且BIOS 22根據 旗標的狀態值（0)發出一”進片”命令給光碟機4，使執行進 片的動作。藉此完成光碟機4之進退片控制。 10 由上述第二實施例之說明可知，藉由在BIOS 22中設 置一旗標暫存器23記錄光碟機4之進退片狀態，使得每當 按鍵3被按壓時即會改變旗標的狀態值，並使BIOS 22根據 旗標的狀態值產生對應之進退片命令控制光碟機4執行進 退片動作。 15 所以，藉由本發明具有光碟機進退片控制電路之計算 機系統1，當光碟機4之控制面板被隱藏在電腦主機内時， 即可方便地藉由設在電腦主機機殼上之按鍵3控制光碟機4 進退片，而且由於本發明省去光碟機4之偵測步驟，可縮 短光碟機4之反應時間，而具有類似於硬體控制光碟機4之 20 效果。 綜上所述，本發明具有進退片控制電路之計算機系統 1，在光碟機4被隱藏在電腦主機殼内部時，提供一設在主 機機殼上之按鍵3供使用者按壓，並發出控制訊號通知主 機板2之BIOS 22產生適當之進退片命令控制光碟機進退片 10 591492The Pliei key 3 will send a control signal to the south bridge chip 21, so that it sends an SMI signal to notify the BIOS 22 to change the status value of the flag. For example, the status value of the flag is changed from the first status value 0 (advance status) to the second status value. 1 (eject status), and then the BIOS 22 sends a "eject" command according to the flag status value (1) to send to the optical disc drive 4 through the south 5 bridge chip 21 and the IDE interface 20, so that the eject operation is performed. Similarly, when the user wants to advance the optical disc drive 4 and press the button 3 again, the flag will change from the second state value 1 to the first state value 0, and the BIOS 22 will issue an "Enter" according to the state value (0) of the flag. The "movie" command is given to the optical disc drive 4, so that the film advance operation is performed. This completes the advance and rewind control of the optical disc drive 4. 10 As can be seen from the description of the second embodiment, by setting a flag register 23 in the BIOS 22 to record the advance and retreat status of the optical disc drive 4, so that the state value of the flag is changed whenever the button 3 is pressed. The BIOS 22 is caused to generate a corresponding advance and retreat command according to the status value of the flag to control the optical disc drive 4 to perform the advance and retreat action. 15 Therefore, with the computer system 1 having the optical disc drive advance and retreat control circuit of the present invention, when the control panel of the optical disc drive 4 is hidden in the computer mainframe, it can be conveniently controlled by the button 3 provided on the computer mainframe casing. The optical disc drive 4 advances and retreats, and because the detection step of the optical disc drive 4 is omitted in the present invention, the response time of the optical disc drive 4 can be shortened, and the effect is similar to that of a hardware-controlled optical disc drive 4. In summary, the computer system 1 with the advance and retreat control circuit of the present invention, when the optical disc drive 4 is hidden inside the main computer case, a key 3 provided on the main machine case is provided for the user to press, and the control is issued. Signal notifies BIOS 22 of motherboard 2 to generate appropriate advance and retreat commands to control disc advance and retreat 10 591492
»1111 之軟體控制方式，不但不需視窗作業系統的支援，而且沒 有繁雜的命令和偵測步驟，可使光碟機4的反應時間有效 縮短，而具有接近於硬體控制的效果，而且本發明在其他 作業系統（例如DOS)下亦能夠自由操作，不受限制，對於 5 使用者而言，相較於前述習知之操作方式，確實是一更為 便利的選擇。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明書内容所作之簡單的等效變化與修飾，皆 10 應仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 第一圖是本發明具有光碟機進退片控制電路之計算機 系統的第一較佳實施例之電路方塊圖；及 第二圖是本發明具有光碟機進退片控制電路之計算機 15 系統的第二較佳實施例之電路方塊圖。 11The software control method of »1111 not only does not require the support of the Windows operating system, but also has no complicated commands and detection steps, which can effectively reduce the response time of the optical disc drive 4, and has an effect close to that of hardware control. It can also be operated freely under other operating systems (such as DOS) without restrictions. For 5 users, it is indeed a more convenient choice compared to the previously known operation method. However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, the simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention specification, Both 10 should still fall within the scope of the invention patent. [Brief description of the drawings] The first diagram is a circuit block diagram of the first preferred embodiment of the computer system with the optical disc drive advance and retreat control circuit of the present invention; and the second diagram is the computer with the optical disc drive advance and retreat control circuit of the present invention 15 Circuit block diagram of the second preferred embodiment of the system. 11
591492 【圖式之主要元件代表符號簡單說明】 1計算機系統 2主機板 3按鍵 4光碟機 20 IDE介面 21南橋晶片 22 BIOS 23旗標暫存器 12591492 [Simplified description of the main components of the diagram] 1 Computer system 2 Motherboard 3 Buttons 4 Optical drive 20 IDE interface 21 South bridge chip 22 BIOS 23 Flag register 12