Patent Publication Number: US-2006000914-A1

Title: Memory card capable of wireless transmission

Description:
BACKGROUND OF THE INVENTION  
      (a) Field of the Invention  
      The invention relates to a memory card, and more particularly, to a memory card integrating an antenna made of an electrically conductive attachment and thus forming a memory card capable of wireless transmission.  
      (b) Description of the Prior Art  
      Accompanied with blooming of technologies, data access and storage are becoming more and more convenient. For example, fiscards in the earlier days utilize magnetic strips for reading and comparing data, and have evolved into integrated circuit cards. The integrated circuits are for reading and accessing data, so as to ensure that users&#39; information is not leaked out for unlawful purposes.  
      In prior computers, magnetic strips used for data storage and access are gradually replaced by compact discs that are further developed into memory cards having a capacity of 8MB, or even into current memory cards having capacities as large as 256 MB, 512 MB and up to 1 GB. It is apparent that memory card applications stand as favorites in the information technology era.  
      However, due to variations in chip formats and circuit configurations, memory cards are available in different standards including SD, MMC, CF, XD, SM, SIM, RS MMC, and Mini SD.  
      As a result of different standards, the aforesaid memory cards are incompatible when put to use, and significant application restrictions are thus incurred.  
      Referring to  FIG. 1  showing a common SD memory card, the memory card  10  has an input/output interface  14  at one end thereof. When the memory card  10  is used for data access using a card reader or card reading device, it is necessary that the input/output interface  14  come into contact with terminals within the card reader or card reading device in order to read or store data in the memory card  10 .  
      In addition, a card reader or card reading device is required for the memory card  10  to access or store data. That is, in the absence of a card reader or card reading device, access and storage effects of the memory card  10  are considered no longer valid. Again, the need of a card reader or card reading device imposes great restrictions on applications of the memory card  10 .  
     SUMMARY OF THE INVENTION  
      The primary object of the invention is to provide a memory card capable of wireless transmission, in that an antenna formed by an electrically conductive material and located at an attachment of the memory card is integrated with the memory card, such that the memory card becomes capable of wireless transmission using the antenna apart from providing data access and storage functions.  
      To accomplish the aforesaid object, the memory card capable of wireless transmission according to the invention comprises an attachment adhered to the memory card and made of a non electrically conductive material, an antenna located at one side of the attachment to be adhered to the memory card and made of an electrically conductive material, and an extension connecting wire stretched into the memory card and having two ends thereof respectively connected to the electrically conductive material and a printed circuit board, thereby forming a memory card capable of wireless transmission. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  shows a schematic view of a prior memory card.  
       FIG. 2  shows an exploded schematic view according to the invention.  
       FIG. 3  shows an elevational schematic view according to the invention.  
       FIG. 4  shows a partial sectional schematic view according to the invention.  
       FIG. 5  shows a schematic view illustrating transmission according to the invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
      To better understand contents and effects of the invention, detailed descriptions shall be given with the accompanying drawings below.  
      Referring to  FIGS. 2 and 3 , a memory card capable of wireless transmission according to the invention comprises a memory card  10  and an attachment  20 .  
      The memory card  10  has a printed circuit board (PCB)  11  at an interior thereof as shown in  FIG. 4 , a micro processor  12  and a memory  13  at one side of the PCB  11 , an input/output interface  14  at the other side of the PCB  11  as shown in  FIG. 1 , and an adhesion area  15  located at one external side thereof and corresponding with the micro processor  15  and the memory  13 . Wherein, the adhesion area  15  has an extension connecting wire  16  stretched into the memory card  10  to connect with the micro processor  12 .  
      The attachment  20  is a non electrically conductive material and is adhered to the adhesion area  15  at the external side of the memory card  10 . One side of the attachment  20  that adheres to the adhesion area  15  is provided with an antenna  21 , which is made of an electrically conductive material, and is in contact with the extension connecting wire  16  at the memory card  20 .  
      Referring to  FIG. 4 , when the attachment  20  is adhered to the adhesion area  15  at the memory card  10 , the antenna  21  is in contact with one end of the extension connecting wire  16  at the memory card  10 , such that the extension connecting wire  16  has one end thereof connected with the antenna  21  and the other end thereof connected with the micro processor  12  in the memory card  10  to form a memory card  20  capable of wireless transmission.  
      Referring to  FIG. 5 , to use the memory card  20  for data access and storage with a transmission platform  30 , apart from using insertion and connection of the input/output interface  14  with the transmission platform  30 , wireless transmission signals from the transmission platform  30  are also transmitted to form connection between the antenna  21  at the memory card  10  with the internal micro processor  12  to further drive the micro processor  12 , thereby accessing and storing data in the memory  13 .  
      Meanwhile, the memory card  10  can integrate functions of a SIM card using the antenna  21 . Hence, the memory card  10  not only provides data access and storage functions, but can also be inserted to a mobile phone for allowing communication using the mobile phone, or to further transmit data using infrared or Bluetooth.  
      Moreover, according to the invention, functions of the memory card integrating an antenna can be applied to common integrated circuit cards such as chip cards used for MRT, buses and small-amount spending, linked up with credit cards, or implemented to identification cards, thereby offering vast conveniences to integrated circuit card applications.  
      It is of course to be understood that the embodiment described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.