1288886 16800twf.doc/g 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種記憶卡的讀取裝置，且特別是有 關於一種外接開關而能夠預防訊號短路導致資料讀取錯誤 的讀卡裝置。 【先前技術】 隨者數位相機 X __________〇1288886 16800twf.doc/g IX. Description of the Invention: [Technical Field] The present invention relates to a memory card reading device, and more particularly to an external switch capable of preventing signal short-circuiting and data reading errors. Card reading device. [Prior Art] Digital Camera X __________〇
Assistant, PDA)等可攜式電子裝置的流行，輕便易攜帶的 吕己憶卡也成為這些電子產品不可或缺的要件之一，而相對 於這類產品所具有的多樣功能，各廠商也推出對應其產品 規格的記憶卡，包括壓縮快閃（CompactFlash，CF)記憶 卡 '安全磁碟（Security Disk，SD)記憶卡，以及記憶條 (Memory Stick)記憶卡等各式種類的記憶卡。 由於對應於不同產品|置，所採用的記憶卡規格不 同，將造成消費者可能同時擁有數種規格的記憶卡。在此 情況下’具有多合—讀取魏的讀卡機於焉誕生 早 σ嗔卡缺，就此夠碩取各類記情卡，而古 ㈣腦大部份也將此多合—讀卡機㈣電腦的 然而，由於需要讀取不同規格的 卡機也需要域錢記憶卡的結構=合-讀 造，現在市面上所推出的_種新錐讀取構 Stick Duo)記憶卡則因為其 人己思條（Memory 卜双為金屬鍍膜，因此，當使 * 1288886 16800twf.doc/g 用者插拔多次之後，此記惟七 機裡其它種類記憶卡的讀3m絕緣=將會f讀卡 憶卡時，因金屬賴磨損 ^ ^成在項取記 【發二 ^取到錯誤的資料。 晋的1的就疋在提供—種預防訊號短路的讀卡裝 ’猎由=的讀卡裝置外接一個開關， 2 Duo讀卡插騎，停止接㈣應於其它種類記^ 的插=訊號’而達到保護處理器不致讀取錯誤資料的^的。 靜出—種預防訊號短路的讀卡裝置，包括一個 =，減至-台主機，用以插人—張記憶卡，並包括^ =二接腳’耦接至插槽，用以偵測記憶卡是否插入，另 外包括-個第二接腳，_至插槽，用以存取辟卡之一 以及包括—個開關，具有—個第一輸入 個弟一輸入端，並分別耦接至第一接腳及第二接 t用以在第-接腳動姉己憶卡時，情第 接收之訊號。 而n 依…、本I明的I讀實施例所述預防訊號短路的讀卡裝 U包括-個處理H，祕至關，用以控制記憶权 貧科存取。 依照本發明的較佳實施例所述預防訊號短路的讀卡铲 置’上述之開關更包括-個輸出端，用以在第-接腳沒有' f測到記憶卡時，將L端所接收之訊號傳送至處理 器0 1288886 16800twf.doc/g 依照本發明的較佳實施例所述預防訊號短路的讀卡裝 置’上述之開關更包括一個第三輸入端，搞接至一個電壓 源’用以提供開關作用所需的電力。 依照本發明的較佳實施例所述預防訊號短路的讀卡带 置’上述之記憶卡為雙記憶條（Memory Stick Duo)記愧 卡。 思The popular, portable and portable electronic devices such as Assistant, PDA) are also an indispensable element of these electronic products. Compared with the various functions of such products, various manufacturers have also introduced The memory card corresponding to its product specifications includes various types of memory cards such as a CompactFlash (CF) memory card, a Security Disk (SD) memory card, and a Memory Stick memory card. Since the memory card used differs according to different products, it will cause consumers to have several types of memory cards at the same time. Under this circumstance, the card reader with 'multiple-reading Wei' was born in the early days, so it was enough to get all kinds of commemorative cards, and most of the ancient (four) brains also had this combination - reading cards Machine (4) Computer, however, because it is necessary to read the card machine of different specifications, it also needs the structure of the domain money memory card = hinge-read, and now the new version of the memory card that is introduced on the market is because of its People have thoughts (Memory Bu double is metal coating, therefore, when the user of * 1288886 16800twf.doc / g is plugged and unplugged many times, the reading of other types of memory cards in this machine is 3m insulation = will f read When the card memory card is worn, the metal is worn and the ^ ^ is taken in the item. [Feed two to get the wrong information. Jin's 1 is now provided - a kind of card reader for preventing the signal short circuit. The device is connected to a switch, 2 Duo card reader, stop (4) should be inserted in other types of ^ signal = to protect the processor from reading the wrong data ^ Static - a short signal to prevent signal short The device, including a =, reduced to - the host, used to insert a memory card, and includes ^ = two pins 'Coupled to the slot for detecting whether the memory card is inserted, and additionally includes a second pin, _ to the slot for accessing one of the cards and including a switch having a first input The first input of the younger brother is coupled to the first pin and the second terminal t, respectively, for receiving the signal when the first pin moves the card, and the n receives the I. The card reader U for preventing short-circuiting of the signal according to the embodiment includes a processing H, which is used to control the access to the memory. The card shovel for preventing the signal short circuit according to the preferred embodiment of the present invention. The above switch further includes an output terminal for transmitting the signal received by the L terminal to the processor 0 1288886 16800 twf.doc/g when the first pin does not detect the memory card. In the preferred embodiment, the card reading device for preventing short-circuiting of the signal includes a third input terminal that is coupled to a voltage source to provide power required for the switching action. According to a preferred embodiment of the present invention. The card for preventing the short circuit of the signal is set to 'the above memory card is a double memory stick (Memo Ry Stick Duo) 愧 Card. Thinking
本發明因採用藉由開關防止短路的結構，因此當此開 關接收到記憶卡的偵測訊號時，就可以立即中斷非對應此 記憶卡之讀取接腳所傳送的資料，而能夠保護主機，達到 不致讀取錯誤資料的目的。 *為讓本發明之上述和其他目的、特徵和優點能更明顯 易it，下文特舉較佳實施例，並配合所附圖式，作詳細 明如下。 ' " 【實施方式】 μ綠圖1疋依照本發明較佳實施例所繪示的預防訊號短路 、查I卡f置方塊圖’本實施例係將一個開關的多個輸入端 阶至"貝卡衣置的一個偵測接腳及兩個讀取接腳，而能夠 1方止因訊號短路所造成資料讀取錯誤的可能性。 ^實施例之讀卡裝置⑽包括—個記憶卡插槽ιι〇、 固，腳10卜一個第一接腳1〇2，以及一個第二接腳 ，、中記憶卡插# U〇是用以插入一張記憶卡，當記憶 卡插槽110時，此時制接腳101將會傳送一 訊號後，: 在開關120接收到此偵測 4將關閉弟一接腳102及第二接腳103所要傳送給 1288886 1680〇twfdQe/g 1理器130的訊號此可避免處理器130接收到錯誤的 貧料。以上實施例係採用第一接腳101及第二接腳102作 為°己憶卡插槽110中對應其它種類記憶卡的讀取接腳，但 不限制其範圍，使用者當可視實際需要，在不脫離本實施 例的精神下，採用單個或兩個以上的讀取接腳。 圖2疋依肤本發明較佳實施例所繪示的防短路開關 200接腳/己置圖。請同時參考圖1及圖2，其中輸入端21 # &輸入端27係接收由偵測接腳101所傳回的伯測訊號，若 此偵測接腳101沒有偵測到MS Duo插入時（即沒有記憶 卡插入或是有其它種類的記憶卡插入），則此防短路開關 —將以輸入；^ 22及輸入端25分別接收由第一接腳1〇2 及^二接腳103所送出的讀取訊號，並藉由輸出端23及輪 出端26，分別將此讀取訊號傳送至處理器13〇 ;若偵測接 腳1〇1偵娜到MS Duo插入時，則此防短路開關2〇〇將切 斷輸入端22和輸出端23，以及輸入端25和輸出端26間 的連結’使得由第一接腳1〇2及第二接腳103所送出的續 取訊號不被處理器130所讀取，而防止該處理器13〇續取 到錯誤的資料。另外，此防短路開關亦包括一個電源 $ 28，用以連接至—電_或是—高電位，提供此防短路 開關200運作所需之電力，而接地端24則接地或是一低帝 位。 一 以上實施例係採用一個雙通道匯流排開關（D⑽】 ，用以避免讀取到讀卡機上兩個接腳所送出錯誤的讀 取矾號，然而並不限制其範圍，使用者當可視實際需要，在不 1288886 16800twf.doc/g 脫離本實闕的精神下，制其它麵的開關控制 接腳所送出的讀取訊號。 双曰之 坏工尸；r迷 —’〜 π。〜αI万亂派;姐路的讀卡妒置 — 由外接-個關於讀卡裝置，使得㈣關接收到雜卡^ 债測訊號時，就可以立即巾斷雜應此記憶卡之讀取腳 所2送的龍’而㈣賴主機额讀取錯誤資料盖 先别技術因訊號短路容易造成訊號讀取錯誤的缺點。。 雖然本發明已以較佳實施例揭露如上，然其 限f本發明’任何熟習此技藝者，在不脫離轉明之於袖 和範圍内’當可作些許之更動與潤飾，因^ 範圍當視伽之中請專魏圍所界定者鱗。 保護 【圖式簡單說明】 圖1是依照本發明較佳實施例所綠 的讀卡裝置方塊圖。 ㈣防械短路 腳配=是錄本翻触實施例所_的防短路開關接 【主要元件符號說明】 10〇 :讀卡裝置 101 :偵測接腳 102 :第一接腳 103 :第二接腳 110 :插槽 12(^開關 J30 ··處理器 1288886 16800twf.doc/g 200 :防短路開關 21、22、25、27 :輸入端 23、26 :輸出端 24 :接地端 28 :電源端The invention adopts a structure for preventing short circuit by the switch. Therefore, when the switch receives the detection signal of the memory card, the switch can immediately interrupt the data transmitted by the non-corresponding pin of the memory card, and can protect the host. Achieve the purpose of not reading the wrong data. The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the appended claims. [Embodiment] μ Green Figure 1 is a block diagram of the prevention signal short circuit and the I card f according to the preferred embodiment of the present invention. This embodiment is to apply a plurality of input terminals of a switch to " A detection pin and two read pins of the Beka clothes can be used to stop the possibility of reading errors due to signal short circuit. The card reading device (10) of the embodiment includes a memory card slot ιι〇, solid, a foot 10, a first pin 1〇2, and a second pin, and the middle memory card plug #U〇 is used to Insert a memory card, when the memory card slot 110, when the pin 101 will transmit a signal, the switch 12 receives the detection 4 will turn off the pin 102 and the second pin 103 The signal transmitted to the 1288886 1680 〇 twfdQe/g 1 processor 130 prevents the processor 130 from receiving the wrong lean. In the above embodiment, the first pin 101 and the second pin 102 are used as the read pins of the other types of memory cards in the memory card slot 110, but the scope is not limited, and the user can visually Single or more than one read pin is employed without departing from the spirit of the embodiment. 2 is a diagram showing a pin/top diagram of the short-circuit proof switch 200 according to a preferred embodiment of the present invention. Please refer to FIG. 1 and FIG. 2 at the same time, wherein the input terminal 21 # & input 27 receives the primary signal transmitted by the detection pin 101, and if the detection pin 101 does not detect the MS Duo insertion (ie, no memory card is inserted or other types of memory card are inserted), then the short-circuit proof switch will be received by the input; ^ 22 and the input terminal 25 respectively by the first pin 1 〇 2 and the second pin 103 The read signal is sent, and the read signal is respectively transmitted to the processor 13 by the output terminal 23 and the round terminal 26; if the detection pin 1〇1 detects the insertion into the MS Duo, then the defense The shorting switch 2〇〇 will cut off the input terminal 22 and the output terminal 23, and the connection between the input terminal 25 and the output terminal 26 such that the renewed signals sent by the first pin 1〇2 and the second pin 103 are not It is read by the processor 130 to prevent the processor 13 from continuously fetching the wrong data. In addition, the short-circuit proof switch also includes a power supply $ 28 for connecting to - or - high potential to provide the power required to operate the short-circuit proof switch 200, and the ground terminal 24 is grounded or a low level. More than one embodiment uses a two-channel busbar switch (D(10)) to avoid reading the wrong reading nickname sent by the two pins on the card reader, but the range is not limited, and the user can visually Actual need, in the spirit of not departing from the 1288886 16800twf.doc/g, the reading signal sent by the other switch control pin. The bad work of the double scorpion; r 迷—'~ π.~αI Wanchao School; sister's card reader - from the external - a card reader device, so that (4) when receiving the card, the debt test signal, you can immediately wipe the memory card reading foot 2 The sent dragon's (4) depends on the host's amount to read the error data. The prior art is shortcoming because the signal short circuit is easy to cause a signal reading error. Although the present invention has been disclosed in the preferred embodiment as above, it is limited to the present invention. Those who are familiar with this skill, can not make a little change and refinement when they are not out of the sleeves and scope. Because of the scope of the gamma, please define the scales of Weiwei. Protection [schematic description] 1 is green in accordance with a preferred embodiment of the present invention Block diagram of the card device. (4) Anti-mechanical short-circuit pin = is the anti-short-circuit switch of the embodiment of the notebook. [Main component symbol description] 10〇: Card reader 101: Detection pin 102: First pin 103: second pin 110: slot 12 (^ switch J30 · processor 1288886 16800twf.doc / g 200: short circuit breaker 21, 22, 25, 27: input terminal 23, 26: output terminal 24: ground terminal 28: power terminal