Abstract:
A printable personal digital assistant mainly is a personal digital assistance associated with a printing device. In addition to the original functions such as management and record, the data to be recorded on a preset paper can be performed by the printing device. Hence, the data in the personal digital assistant can be printed out promptly as needed.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to a printable personal digital assistant, more particularly, to a personal digital assistant associated, which is possible to convert the data therein into a written form on paper promptly.  
           [0003]    2. Description of Related Art  
           [0004]    The personal digital assistant is a mini computer device, which is light in weight and thin in thickness so as to be carried conveniently, so that functions such as the record of personal events, the personal administration data, the record with regard to the personal communicated information, and the personal amusement can be performed by the user easily and handily. Thus, the user can control his working schedule instantly, carry out the work has to be done, and look into the data needed instantly in a few seconds by way of operating the personal digital assistant such that the utilization of time can be controlled effectively and the work done can be controlled efficiently. Furthermore, it is possible for the personal digital assistant to provide an interface in conjunction with an ordinary personal computer such that a demand of speeding up the transmission of information can be satisfied by the contemporaries.  
           [0005]    The personal digital assistant provides a screen of liquid crystal display and a plurality of simple and understandable icons can be shown on the screen to represent database such as a time display, a character memorandum, financial management, a schedule of appointments, a name card with telephone number, and an icon memorandum. An electronic pen can be used to touch a selected icon item so as to perform an expected function.  
           [0006]    Besides, the personal digital assistant further provides a serial port or an infrared port to connect with another personal digital assistant for transmitting data to each other. Moreover, a modem can be connected to the personal digital assistant for sending or receiving e-mails. Hence, the personal digital assistant can offer multiple functions for diversified purposes.  
           [0007]    Mostly, the personal digital assistant available on the market can be classified into two different types, and one is an ordinary type and the other is a professional type.  
           [0008]    The ordinary type of personal digital assistant generally refers to a personal digital assistant offering common functions such as an address book, a calendar, a notebook, and a list of matters to be done.  
           [0009]    The professional type of personal digital assistant refers to a personal digital assistant offering a specific use such as transmitting update quotations in the stock market, or acting as an electronic dictionary.  
           [0010]    However, the preceding personal digital assistant is unable to convert the data therein into a written document on a piece of paper when it is necessary although a variety of functions can be performed effectively.  
         SUMMARY OF THE INVENTION  
         [0011]    An object of the present invention is to provide a printable personal digital assistant, which is in conjunction with a printing device to offer a written document promptly when it is needed. 
       
    
    
     BRIEF DESCRIPTIN OF THE DRAWINGS  
       [0012]    Other objects and features of the present invention can be more fully understood by reference to the following description of a preferred embodiment and accompanying drawings, in which:  
         [0013]    [0013]FIG. 1 is a perspective view of a printable personal digital assistant according to the present invention;  
         [0014]    [0014]FIG. 2 is a fragmentary sectional view of the printable personal digital assistant shown in FIG. 1;  
         [0015]    [0015]FIG. 3 is a perspective view of a paper feed box provided in the printable personal digital assistant of the present invention;  
         [0016]    [0016]FIG. 4 is a perspective view illustrating the paper feed box to be mounted to the personal digital assistant;  
         [0017]    [0017]FIG. 5 is a flow chart of an operation system according to the present invention;  
         [0018]    [0018]FIG. 6 is a block diagram of the operation system according to the present invention; and  
         [0019]    [0019]FIG. 7 is a simplified circuit diagram with regard to the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0020]    Referring to FIGS.  1  to  4 , the printable personal digital assistant of the present invention comprises a personal digital assistant  1 , a printing device  2 , and a paper feed box  3 .  
         [0021]    Wherein, the personal digital assistant  1  further comprises a central processor, a screen display  13 , and a power source. The personal digital assistant  1  provides a structural arrangement similar to the conventional one so that no detail will be described further.  
         [0022]    The personal digital assistant  1  has an upper casing part  11  attached next to the screen display  13  and a feed slot  110  corresponding to a paper outlet of the printing device  2 .  
         [0023]    The printing device  2  may be mounted in the upper casing part  11  and provides with a thermal induced print head  21  and conveying wheels  23 ,  231 . The print head  21  at the paper outlet thereof has a sensor  24 . A lower casing part  12  is disposed opposite to the upper casing part  11  and provides a recess opening  121  under the print head  21  to receive the paper feed box  3  as shown in FIGS. 2 and 4.  
         [0024]    Referring to FIGS.  2   3  and  4  again, the paper feed box  3  has a shape corresponding to the recess opening  121  and has a containing space  30  with a push plate  31  and a spring  32 . The containing space  30  can receive a pile of paper sheets  4  and the whole pile of paper sheets  4  are kept in a state of moving forward by way of the push plate  31  associated with the spring  32 .  
         [0025]    A transmitting wheel  22  is disposed in the lower casing part  12  next to the papers  4  and is opposite to the push plate  31 . The transmitting wheel  22  is driven by a step motor and keeps contact with the papers  4  in the paper feed box  3 .  
         [0026]    The pile of paper sheet  4  in the paper feed box  3  is provided with a high sensitivity to the heat, and the maximum capacity of the paper feed box  3  is approximately 100 sheets of papers.  
         [0027]    Referring to FIGS. 6 and 7, basically the printable personal digital assistant of the present invention can be divided into a unit A and a unit B from the block diagram illustrated in FIG. 6. The unit A is like an ordinary control unit of management and comprises the central processor, a power source control, and a universal non-synchronous serial communication. The unit B is a device executing print function, and comprises a printing device b 1 , and a paper feed control b 2 , and a circuit shown in FIG. 7 illustrates the relationship among the preceding devices.  
         [0028]    When the printable personal digital assistant is in operation, a pile of paper sheets with a high sensitivity to the heat are placed in the paper feed box  3 , and the paper feed box  3  is inserted into the recess opening  121  of the lower casing part  12  firstly. The transmitting wheel  22  rotates and moves one of paper sheets  4  upward to enter the printing device  2  as soon as the control unit in the personal digital assistant sends out a print signal. The paper  4  in the printing device  2  is thermally sensed by the heat induced print head  21  and it can be delivered outward via the feed slot  110  on the upper casing  11  by way of the conveying wheels  231 ,  23  once the paper  4  is successfully printed. The sensor  24  is disposed at the out let of the printing head  21  to detect if the paper  4  is successfully printed, that is, once there is no normal output of printed paper under an expected execution of printing function, an error message and an operation suggestion may appear on the display screen. A flow chart with regard to the operation of the printable personal digital assistant is shown in FIG. 5.  
         [0029]    Furthermore, the shape of the paper feed box  3  can be changed to meet any specific need of use and any desirable need of function such as the direction of paper feed, the capacity thereof, or the mode for engaging with the lower casing.  
         [0030]    While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.