Abstract:
A handheld device includes a first main part, and a second main part. The first main part includes a key system to manipulate a vehicle, a storage to store a number of instructions, and a first processor to execute the instructions to generate information. The second main part includes an input unit to generate commands in response to user&#39;s operations, and an output unit to output the information.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The disclosure relates to handheld devices, and particularly to a handheld device for manipulating a vehicle. 
         [0003]    2. Description of Related Art 
         [0004]    Due to the ubiquity of cars and phones, most people carry around car keys and a mobile phone. It is desired to reduce sizes of the key and the mobile phone for people to easily carry. However, nowadays, the mobile phone includes many functions and its size cannot be reduced. The size of the key also cannot be reduced because the key is already small and could be easily lost. 
         [0005]    Therefore, there is room for improvement within the art. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0006]    Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
           [0007]      FIG. 1  is a schematic view of a handheld device in accordance with an embodiment, the handheld device includes a first main part and a second main part. 
           [0008]      FIG. 2  is a functional block diagram of the first main part in  FIG. 1 . 
           [0009]      FIG. 3  is a functional block diagram of the second main part in  FIG. 1 . 
           [0010]      FIG. 4  is a graphical user interface provided by the second main part in  FIG. 3 . 
       
    
    
     DETAILED DESCRIPTION 
       [0011]    Referring to  FIGS. 1 and 2 , a handheld device  100  includes a first main part  10 , a second main part  20 , and a wireless communication assembly  90 . The first main part  10  is in a shape of a vehicle key, and thus can be called a vehicle key. The vehicle may be, but is not limited to, a car  30 . The second main part  20  can be a mobile phone, a PDA, a palm computer or the like. In this embodiment, the wireless communicating assembly  90  is detachably installed in the first main part  10 . In other embodiments, the communication assembly  90  also can be detachably assembled into the second main part  20 . The first main part  10  is detachably combined with the second main part  20  and communicates with the second main part  20  via known short range wireless technologies, such as near field communication (NFC), infra red (IR), Bluetooth® and the like. 
         [0012]    The first main part  10  is configured to lock and unlock a door lock of a car  30 , and to start and shut down an engine of the car  30 . The first main part  10  manipulates the door lock wirelessly or mechanically using known technologies. The first main part  10  manipulates the engine mechanically using known technologies. Further, the first main part  10  is further configured to be operable in a mobile telephone network, such as GSM, CDMA, and the like, to dial, send MSM, send emails, and other telephone functions. Moreover, the first main body  10  is further configured to operable in a wireless network, such as GPRS, WLAN, and the like, to communicate with a network server  50  which provides a large number of audio files, video files, articles and news; or communicate with a car service server  60  which provides information of a number of car service shops, such as locations, items, and prices of the items; or communicate with a GPS satellite  70  to establish locations of the car  30 . The first main part  10  communicates with the telephone network or the wireless network as described above via base stations  80 . 
         [0013]    Referring to  FIG. 2 , the first main part  10  includes a first battery module  11 , a first communicating unit  13 , a key system  18 , and an interface  19  electrically and detachably connected to the wireless communicating assembly  90 . 
         [0014]    The first battery module  11  provides electrical energy to the first wireless communication unit  13 , the key system  18 , and the wireless communicating assembly  90 . The first battery module  11  includes a first battery  110  and a first indicator  112 . The first battery  110  is a rechargeable battery to provide the electrical energy. The first indicator  110  detects a capacity of the first battery  110 , and informs the user that the first battery  110  is low when the capacity of the first battery  110  is lower than a predetermined value. In this embodiment, the first indicator  110  is a light which flashes when the capacity of the first battery  110  is lower than the predetermined value. 
         [0015]    The key system  18  generates a locking instruction and an unlocking instruction, and transmits the locking and unlocking instructions to the car  30  via the first communication unit  13 , to open or close a door, a window, or a trunk of the car  30  (not shown). The key system  18  includes buttons set in the first main part  10  (not shown). The buttons are pressed to generate the locking instruction or the unlocking instruction. 
         [0016]    The wireless communicating assembly  90  is inserted into the first main part  10  and electrically connected to the interface  19 . The wireless communicating assembly  90  includes a second communication unit  12 , a first processor  14 , a subscriber identification module (SIM) card connector  15 , a first storage  16 , and a third wireless communication unit  17 . 
         [0017]    The SIM card connector  15  is electrically connected to a SIM card (not shown) that allows the second communication unit  12  to communicate with the telephone network to dial, send MSM, send emails, and other telephone functions. 
         [0018]    The first storage  16  stores a number of first applications/instructions to provide functions such as a calendar function, a computing function, a playing game function, and others. 
         [0019]    The third communication unit  17  communicates with the second main part  20  to receive commands from the second main part  20 . The commands may be a telephone command, a function command, an Internet surfing command, and a car control command. In detail, the telephone commands may be a calling command, an SMS sending command, or a sound message command. The function command may be a game playing command, an audio playing command, or a video playing command. The Internet surfing command may be a downloading command, an uploading command, or a web page viewing command. The car control command may be a car consultation command, a car location command, or a monitoring command. 
         [0020]    The first processor  14  responds to the telephone commands to call the second communication unit  12  to dial telephone number, send voice messages, send SMS, and the like. The first processor  14  further responds to the function command to call the first applications to perform functions, such as the playing game function, the calendar function, the computing function, and the like, and sends corresponding information to the second main part  20 . The first processor  14  further responds to the Internet surfing command to use the second communication unit  12  to obtain information from the network server  50 , the car service server  60 , and store the information into the first storage  16  or send the information to the second main part via the third communication unit  17 . The first processor  14  further responds to the car control command to obtain information from within the vehicle such as tire pressure information, oil level information, mileage information, and to obtain the car location from the GPS satellite  70 , and transmit the information and the car location information to the second main part  20  via the third communication unit  17 . 
         [0021]    Referring to  FIG. 3 , the second main part  20  includes a second battery  21 , a display  22  for displaying information, a fourth communication unit  23 , an input unit  24 , a second storage  25 , a second processor  26 , a speaker  27  for producing sound, a graphical user interface (GUI) provider  28 , and an audio gathering unit  29  for gathering sound and converting the sound into audio signals. 
         [0022]    The second battery module  21  provides electrical energy to the second main part  20 . The second battery module  21  includes a second battery  210  and a second indicator  211 . The second battery  210  is a rechargeable battery to provide electrical energy. The second indicator  211  detects a capacity of the second battery  210  and displays information on the display  22  when the capacity of the second battery  210  is lower than a predetermined value. 
         [0023]    The input unit  24  may be physical buttons set in the second main part  20 , or may be virtual, or soft, buttons displayed on the display  22 . 
         [0024]    The second storage  25  stores a number of second applications/instructions. Each second application is different from the first application and calls a different function from the first applications. 
         [0025]    Referring to  FIG. 4 , the GUI provider  28  provides a GUI  280  and displays the GUI  280  on the display  22  to enable the user to interact with the second main part  20 . The GUI  280  includes a number of icons  281  which function as soft buttons, as described above, and correspond to the telephone commands, function commands corresponding to the first application and the second application, and car control commands In detail, the icons  281  includes a dial icon which may be clicked to generate the calling command, an SMS icon to be clicked to generate the SMS sending command, a sound icon to be clicked to generate the sound message sending command The icons  281  further include a webpage icon, or an Internet chat tool icon to be clicked to generate Internet surfing commands. The icons  281  further include car information icons to be clicked to generate car control commands. 
         [0026]    The fourth communication unit  23  communicates with the third communication unit  17 . The second processor  26  determines whether the generated command corresponds to the second applications, and when the generated command corresponds to the second applications, the second processor calls the corresponding second application. Likewise, the second processor  26  transmits the generated command to the first main part  10  to control the main part  10  to carry out the corresponding function, such as telephone function or other function as described above. 
         [0027]    The second processor  26  receives the information, such as video signal, and the audio signal from the first main part  10  to the displayer  22  and the speaker  27 , so as to output the information. The second processor  26  further transmits an audio signal generated by the audio gathering unit  29  to the first main part  10 . 
         [0028]    In operation, taking the dial function as an example, firstly, the second main part  20  displays the GUI  280  on the displayer  22 . Next, in response to clicking the dial icon on the GUI  280  to dial a desired number, the desired number is transmitted to the first main part  10  via the fourth wireless communication unit  23 , then the first main part  10  sends a call to a called party via the second communication unit  12 , then the first main part  10  generates a waiting interface and a ring back tone, and then transmits the waiting interface and the ring back tone to the second main part  20  via the third wireless communication unit  18 , so as to cause the second main part  20  to display the waiting interface and output the ring back tone. Next, when the called party answers the call, the first main part  10  generates a communication interface and receives sound from the called party, and then transmits the communicating interface and the received sounds to the second main part  20  via the third wireless communication unit  17 , so as to cause the second main part  20  to display the communicating interface and output the sound received from the called party. Then, when the call is ended, the connection between the called part and the first main part  10  is disconnected, and the second main part  20  displays the original GUI  280  on the display. 
         [0029]    When in use, the first main part  10  and the second main part  20  are combined together so that the handheld device  100  described above is easy for the user to carry. The main part  10  and the second main part  20  are separable, in detail, the first main part  10  is inserted into a switch of the car  30  to start the engine of the car  30 , the second main part  20  is positioned in the front of the drivers so that the driver can operate it easily. 
         [0030]    As described above, the first main part  10  includes a key system and first applications. As a result, the first main part  10  can function as the vehicle key. Furthermore, the first main part further includes many functions, thus the second main part  20  which functions as the mobile phone, or the PDA, does not need such functions, and the size of the second main part  20  will be reduced. Therefore, the handheld device  100  has greater convenience for drivers. 
         [0031]    Even though relevant information and the advantages of the present embodiments have been set forth in the foregoing description, together with details of the functions of the present embodiments, the disclosure is illustrative only; and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the present embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.