1284286 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種小型記憶卡，尤其是—種具有萬 用序列匯流排介面的小型記憶卡。 【先前技術】 由於現代科技的快速發展，各種資訊幾乎都已經數位 化。因此，數位資料的儲存與傳輸也愈顯得重要。到了今 確_天’各豕廠商仍以自己的記憶卡規格發展，以期成為產品 主流。各種記憶卡雖然可以儲存的資料量愈來愈多，可是 彼此之間卻不具相容性，甚至若無特定的讀卡震置，則無 法讀取記憶卡中的資料。 所以請參考圖1’目前市面上發展出一種具有萬用序列 匯流排介面（USB interface)的記憶卡1，其一端具有記憶 卡匯流排介面11，另一端則是具有USB介面12，所二可二^ 用USB介面12直接傳輸資料。可是這種記憶卡丨的匯流排介 馨•面11、12沒有保護機制，在插拔時容易觸碰到人體手部， 所以容易使匯流排介面11、12的金屬磨損造成接觸不良。 而且，由於USB介面的寬度小於記憶卡匯流排介面的寬度， 所以此種習知的記憶卡1其整體外觀略呈丁形（兩端部的寬 度不同之故），可是大部分的讀卡|置需要有卡片形（長方 形）的外觀，以利插拔。而習知的記憶卡1係略呈T形，因 此不利於在一般的讀卡裝置插拔。 5 1284286 【發明内容】 鑑於先前技術之不足，本發明乃提供一種小型記憶 卡，使用時係可覆蓋住記憶卡匯流排介面或者萬用序列匯 流排介面其中之一，以避免手部觸碰摩擦介面而造成接觸 不良。 因此，本發明提供一種小型記憶卡，其具有兩端部（tw〇 opposite ends)。本發明的小型記憶卡包含微處理器 (microprocessor)、位在其中之一端部的記憶卡匯流排介 面（memory bus interface)、以及位在另一端部的萬用序 列匯流排介面（USB interface);其中，記憶卡匯流排介面 及萬用序列匯流排介面皆與該微處理器電性相連，使本發 明的小型記憶卡得以儲存並處理傳輸資料。尤其是，本發 明還包含可移動殼體（movable case)，係可在兩相對^ 口 I5 =間移動’以包覆記憶卡匯流排介面或者萬用序列匯流 排介面。 邻中’可移動殼體、記憶卡匯流排介面之端 列匯流排介面之端部還包含有定位機構，使 付可移動设體固定在特定位置。 【實施方式】 頻易ί讓ΐ發明之上述和其他目的、特徵、和優點能更明 颁易廑，下文特舉出較佳實施例，並 細說明如下。 工配口所附圖式，作詳 請同時參考圖2Α與圖2Β，其 本發明乃提供—種小型錄卡 ^之實化例。 ‘《卞2其具有兩相對端部分別 a 1284286 為第一端部23與第二端部24。本發明之記憶卡匯流排介 面21係位在小型記憶卡2之第一端部23，而萬用序列匯 流排介面2則係位在小型記憶卡2另一端的第二端部24。 其中，本發明的記憶卡匯流排介面21可以係 SD(Secure Digital)卡匯流排介面、MMC(Multi-Media Card)卡匯流排介面（如圖3A所示）、SM(Smart Media) 卡匯流排介面、MS(Memory Stick)卡匯流排介面、 PCMCIA卡匯流排介面、或一CF(Compact Flash)卡匯流 痛_排介面。如圖2A與所示之記憶卡匯流排介面21即為SD卡 匯流排介面，而圖3 A所示之記憶卡匯流排介面31即為 MMC卡匯流排介面。 請參考圖4，本發明之小型記憶卡2或3包含有微處 理器41 ’較佳者還包含有緩衝貯存區（cache)42，且記 憶卡匯流排介面21或31及萬用序列匯流排介面22或32 可透過緩衝貯存區42與微處理器41電性相連。 尤其是’如圖2A、2B、3A及3B所示，本發明還包含 __有可移動殼體25、35可在第一端部23、33與第二端部 24、34之間移動，以包覆記憶卡匯流排介面21、31或者 萬用序列匯流排介面22、32。 舉例而言，如圖2A與圖3A所示，當小型記憶卡2、3 之可移動殼體25、35移至第二端部24、34時，可移動殼 體25、35係覆蓋著萬用序列匯流排介面22、32，其整體 外觀係如一般的小型記憶卡無異。此時，使用者可將記 憶卡匯流排介面21、22可插入記憶卡插槽（未圖示），也 就是當成一般的小型記憶卡使用。而且，如圖4所示， 7 1284286 記憶卡匯流排介面21或31係作用著（active)，並可利用 電流迴路（未圖示）使萬用序列匯流排介面22、32無作 用（inactive)，且透過緩衝貯存區42暫存資料再藉由微 處理器41運算處理。 ★或者，如圖2B與圖3B所示，當可移動殼體25、35移 至第一端部23、33時，係可覆蓋記憶卡匯流排介面21、 22,此時露出萬用序列匯流排介面22、32。因此使用者 可將萬用序列匯流排介面22、32插入萬用序列匯流排連 孀I藝接埠（未圖示）。相類似地，如圖4所示，萬用序列匯流 排介面2 2、3 2係作用著，並可利用電流迴路（未圖示）使 記憶卡匯流排介面21或31無作用，且透過緩衝貯存區42 暫存資料再藉由微處理器41運算處理。 此外，在較佳實施例中，如圖5所示的局部斷面圖， 本發明可進一步包含至少一定位機構51、52，使得可移 動殼體25、35固定在第一端部23、33或第二端部24、34。 舉例而言，在可移動殼體25、35四個角落設有凸部52， __而在小型記憶卡2、3的適當處設有凹部51，使可移動殼 體25、35移到適當處之後，得以固定在適當處（第一端 部23、33或第二端部24、34)。然而，圖5係用以說明 並非限制本發明，例如，本發明之定位機構亦可以有其 他的實施態樣’例如軌道定位或彈片定位等等類似者。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 和範圍内，當可作些許之更動與潤飾，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為準。 8 1284286 【圖式簡單說明】 圖1係傳統具有USB介面之記憶卡之結構示意圖。 圖2A係與圖2B依據本發明之一實施例，顯示具有USB 介面之小型記憶卡之結構示意圖，其中圖2A之可移動殼體 係包覆著USB介面，而圖2B之可移動殼體係包覆著SD記憶卡 匯流排介面。 圖3A與圖3B係依據本發明之另一實施例，顯示具有use 馨藝介面之小型記憶卡之結構示意圖，其中圖3人之可移動殼體 係包覆著USB介面，而圖3B之可移動殼體係包覆著MMC記憶 卡匯流排介面。 U ^ 圖4係依據本發明之一實施例，顯示其電路方塊示意 圖5係依據圖2A之標號5所繪製之局部放大斷面圖。 【主要元件符號說明】 、2、3、記憶卡1284286 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a small memory card, and more particularly to a small memory card having a universal serial bus interface. [Prior Art] Due to the rapid development of modern technology, almost all kinds of information have been digitized. Therefore, the storage and transmission of digital data is becoming more and more important. Nowadays, the manufacturers of _days are still developing with their own memory card specifications, in order to become the mainstream of the products. Although various memory cards can store more and more data, they are not compatible with each other, and even if there is no specific card reading, the data in the memory card cannot be read. Therefore, please refer to FIG. 1'. Currently, a memory card 1 having a universal serial interface (USB interface) is developed on the market, which has a memory card bus interface 11 at one end and a USB interface 12 at the other end. 2^ Transfer data directly using the USB interface 12. However, the busbars of the memory card have no protective mechanism, and the hand grips easily touch the human hand, so that the metal wear of the busbar interfaces 11 and 12 is liable to cause poor contact. Moreover, since the width of the USB interface is smaller than the width of the memory card bus interface, the conventional memory card 1 has a slightly external appearance (the widths of the two ends are different), but most of the cards are read | The card needs to have a card-shaped (rectangular) appearance for easy insertion and removal. The conventional memory card 1 is slightly T-shaped, which is disadvantageous for insertion and removal in a general card reading device. 5 1284286 SUMMARY OF THE INVENTION In view of the deficiencies of the prior art, the present invention provides a small memory card that can cover one of the memory card bus interface or the universal serial bus interface when used to avoid hand touch friction. The interface causes poor contact. Accordingly, the present invention provides a compact memory card having tw〇 opposite ends. The small memory card of the present invention comprises a microprocessor, a memory bus interface located at one end thereof, and a universal serial bus interface (USB interface) located at the other end; The memory card bus interface and the universal serial bus interface are electrically connected to the microprocessor, so that the small memory card of the present invention can store and process the transmission data. In particular, the present invention also includes a movable case that can be moved between two opposing ports I5 = to cover the memory card bus interface or the universal serial bus interface. The end of the adjacent movable block and the end of the bus bar interface of the memory card also includes a positioning mechanism for fixing the movable set to a specific position. The above and other objects, features, and advantages of the invention will be apparent from the appended claims. For the details of the working port, please refer to FIG. 2A and FIG. 2, and the present invention provides an example of a small-sized card. ‘“卞2 has two opposite ends respectively a 1284286 is the first end 23 and the second end 24 . The memory card bus interface 21 of the present invention is tied to the first end 23 of the small memory card 2, and the universal serial bus interface 2 is tied to the second end 24 of the other end of the small memory card 2. The memory card bus interface 21 of the present invention may be an SD (Secure Digital) card bus interface, an MMC (Multi-Media Card) card bus interface (as shown in FIG. 3A), and an SM (Smart Media) card bus. Interface, MS (Memory Stick) card bus interface, PCMCIA card bus interface, or a CF (Compact Flash) card convergence pain _ interface. The memory card bus interface interface 21 shown in FIG. 2A is the SD card bus interface interface, and the memory card bus interface interface 31 shown in FIG. 3A is the MMC card bus interface interface. Referring to FIG. 4, the small memory card 2 or 3 of the present invention includes a microprocessor 41' preferably further including a buffer memory 42, and the memory card bus interface 21 or 31 and the universal serial bus The interface 22 or 32 can be electrically coupled to the microprocessor 41 through the buffer storage area 42. In particular, as shown in Figures 2A, 2B, 3A and 3B, the invention further comprises a movable housing 25, 35 movable between the first end 23, 33 and the second end 24, 34, To cover the memory card bus interface 21, 31 or the universal sequence bus interface 22, 32. For example, as shown in FIG. 2A and FIG. 3A, when the movable housings 25, 35 of the small memory cards 2, 3 are moved to the second ends 24, 34, the movable housings 25, 35 are covered with 10,000 With the serial bus interface 22, 32, the overall appearance is the same as a general small memory card. At this time, the user can insert the memory card bus interface 21, 22 into the memory card slot (not shown), that is, as a general small memory card. Moreover, as shown in FIG. 4, the 7 1284286 memory card bus interface 21 or 31 is active, and the current loop (not shown) can be used to make the universal serial bus interface 22, 32 inactive. The data is temporarily stored in the buffer storage area 42 and then processed by the microprocessor 41. Or, as shown in FIG. 2B and FIG. 3B, when the movable housings 25, 35 are moved to the first end portions 23, 33, the memory card busbar interfaces 21, 22 can be covered, and the universal sequence convergence is exposed. Interfaces 22, 32. Therefore, the user can insert the universal serial bus interface 22, 32 into the universal serial bus connection (not shown). Similarly, as shown in FIG. 4, the universal sequence bus interface 2 2, 3 2 acts, and the current loop (not shown) can be used to make the memory card bus interface 21 or 31 useless and pass buffer. The storage area 42 is temporarily processed by the microprocessor 41. Moreover, in a preferred embodiment, as shown in the partial cross-sectional view of FIG. 5, the present invention may further comprise at least one positioning mechanism 51, 52 such that the movable housings 25, 35 are secured to the first end portions 23, 33. Or the second ends 24, 34. For example, the convex portions 52 are provided at four corners of the movable housings 25, 35, and the recesses 51 are provided at appropriate places of the small memory cards 2, 3 to move the movable housings 25, 35 to the appropriate positions. After that, it is fixed at the appropriate place (first end portion 23, 33 or second end portion 24, 34). However, Figure 5 is intended to illustrate and not to limit the invention. For example, the positioning mechanism of the present invention may have other embodiments such as track positioning or shrapnel positioning and the like. While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. 8 1284286 [Simple description of the diagram] Figure 1 is a schematic diagram of the structure of a conventional memory card with a USB interface. 2A and FIG. 2B are schematic diagrams showing the structure of a small memory card having a USB interface according to an embodiment of the present invention, wherein the movable housing of FIG. 2A is covered with a USB interface, and the movable housing of FIG. 2B is covered. The SD memory card bus interface. 3A and FIG. 3B are schematic diagrams showing the structure of a small memory card having a useful interface, wherein the movable housing of the human body covers the USB interface, and the movable device of FIG. 3B is movable according to another embodiment of the present invention. The housing is covered with the MMC memory card bus interface. U ^ Figure 4 is a block diagram showing the circuit block in accordance with an embodiment of the present invention. Figure 5 is a partially enlarged cross-sectional view taken along line 5 of Figure 2A. [Main component symbol description], 2, 3, memory card
、33、第一端部 25、35、可銘叙鉛 31、 記憶卡匯流排介面 32、 萬用序列匯流排介面 24、34、第二端部 可移動殼體33, the first end 25, 35, can be inscribed lead 31, the memory card bus interface 32, the universal sequence bus interface 24, 34, the second end movable housing