Abstract:
An apparatus for locating a receiver of radio communication is introduced particularly to indicate the location of the receiver by a simple symbol so as to navigate a sender thereof to the location of the receiver without using a map. The apparatus, as a simple and practical position-locating device, mainly includes a system control unit, a direction detection unit, a longitude-and-latitude detection unit, an operation unit, a display unit, a data transmission unit, a radio communication interface unit, a voice transmission unit, a voice procession unit, a human-machine interface, a microphone and a speaker.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    (1) Field of the Invention  
           [0002]    The invention relates to an apparatus for locating a receiver of radio communication, and more particularly to an apparatus which can help a sender of the radio communication to locate simply and quickly the receiver without any information provided by a map bank.  
           [0003]    (2) Description of the Prior Art  
           [0004]    Currently, vehicle&#39;s global positioning system (GPS) can utilize satellites to help the driver not to get lost or circle-around while driving at an unfamiliar district. Yet, such a GPS needs a digital map bank to provide the road information all the time. In the case that two parties are dated to meet at a particular place, it is quite often for those using the GPS that a meeting point is missed due to non-identical explanation of the place. Consequently, even the GPS might have showed both parties that exact place had been met, yet it has a great possibility that they cannot still locate each other. Definitely, such an embarrassing situation results in wasting precious time. To overcome this practical problem, while dating with the GPS, a specific construction or landmark is always used to help the drivers locate the position. However, such a construction or landmark acceptable to both parties is seldom and therefore missing the meeting place still occurs due to drivers&#39; unfamiliarity upon the district. It is easy to see that the cost GPS is almost useless under the situation described above.  
         SUMMARY OF THE INVENTION  
         [0005]    Accordingly, it is a primary object of the present invention to provide an apparatus for locating a receiver of radio communication which can resolve the described problem of the GPS and by which people can locate easily each other by the radio communication and an indicator provided by the apparatus of the present invention.  
           [0006]    It is another object of the present invention to provide an apparatus for locating a receiver of radio communication which can help people meet exactly without missing unconsciously the dating place.  
           [0007]    All these objects are achieved by the apparatus for locating a receiver of radio communication described below. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0008]    The present invention will now be specified with reference to its preferred embodiment illustrated in the drawings, in which  
         [0009]    [0009]FIG. 1 is a block diagram to show a preferred embodiment of the apparatus for locating a receiver of radio communication in accordance with the present invention;  
         [0010]    [0010]FIG. 2 is a flowchart of the apparatus of FIG. 1 at the end of the first party of the radio communication;  
         [0011]    [0011]FIG. 3 is a flowchart of the apparatus of FIG. 1 at the end of the second party of the radio communication;  
         [0012]    [0012]FIG. 4 is a schematic view of a preferred display unit in accordance with the present invention; and  
         [0013]    [0013]FIG. 5 is a block diagram to show another preferred embodiment of the apparatus for locating a receiver of radio communication in accordance with the present invention. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0014]    The invention disclosed herein is directed to an apparatus for locating a receiver of radio communication. In the following description, numerous details are set forth in order to provide a thorough understanding of the present invention. It will be appreciated by one skilled in the art that variations of these specific details are possible while still achieving the results of the present invention. In other instance, well-known components are not described in detail in order not to unnecessarily obscure the present invention.  
         [0015]    Referring now to FIG. 1, a block diagram of a preferred embodiment of the apparatus for locating a receiver of radio communication in accordance with the present invention is shown. The apparatus of the present invention includes a system control unit A 1 , a direction detection unit A 2 , a longitude-and-latitude detection unit A 3 , an operation unit A 4 , a display unit A 5 , a data transmission unit A 6 , a radio communication interface unit A 7 , a voice transmission unit A 8 , a voice procession unit A 9 , a human-machine interface A 0 , a microphone M and a speaker S.  
         [0016]    In the present invention, the system control unit A 1  is used to control all units of the apparatus.  
         [0017]    In the present invention, the direction detection unit A 2  can use a heading direction of a vehicle or the apparatus as a standard direction for judging a direction of the receiver. The direction detection unit A 2  can be a gyroscope, an electronic compass, or any direction detection element that utilizes GPS Doppler effect.  
         [0018]    In the present invention, the longitude-and-latitude detection unit A 3  can utilize a GPS to receive a satellite&#39;s signals so as to obtain longitude and latitude data of the user for further computation in the operation unit A 4 .  
         [0019]    In the present invention, the operation unit A 4  is controlled by the system control unit A 1  to receive signals from the direction detection unit A 2 , the longitude-and-latitude detection unit A 3  and the data transmission unit A 6 . Those signals can include information of directions, latitudes, longitudes and other position data for both the user and the opposite user.  
         [0020]    In the present invention, the display unit A 5  is used to display the display data transmitted from the operation unit A 4 . The display unit A 5  can be an LCD screen or any displayer that can illustrate the display data for navigating the user to meet the opposite user.  
         [0021]    In the present invention, the data transmission unit A 6  can enable the operation unit A 4  to transform the longitude and latitude data of the user and the communication data of an opposite user. Also, the data transmission unit A 6  can forward data to the radio communication interface unit A 7  of the opposite user through the radio communication interface unit A 7  of the user. The data transmission unit A 6  can be a short message provided by the provider of the mobile phone system or by a digital data procession apparatus.  
         [0022]    In the present invention, the radio communication interface unit A 7  is used to establish radio connection with a radio communication device. The radio communication device can be a GSM system, a DCS system, a radio intercom, or any device for radio communication.  
         [0023]    In the present invention, the voice transmission unit A 8  can transform and forward voice signals of the voice procession unit A 9  to the opposite user through the radio communication interface unit A 7 , or can transform incoming voice signals provided by the radio communication interface unit A 7  into signals acceptable to the voice procession unit A 9 .  
         [0024]    In the present invention, the voice procession unit A 9  is used to process the voice signals from the microphone M and the voice transmission unit A 8 . The voice procession unit A 9  is also able to eliminate noises, echoes and any unexpected voices.  
         [0025]    In the present invention, the human-machine interface A 0  is used for the user to input settings of the apparatus. The human-machine interface A 0  can be a key-type or touch screen-type input device.  
         [0026]    In the present invention, the microphone M can be used for the user to input voices.  
         [0027]    In the present invention, the speaker S can be used for outputting the voice signals of the voice procession unit A 9 .  
         [0028]    By providing all the units described above, the user is able to locate quickly and easily the position of the opposite user. The detail procedures are described as follows.  
         [0029]    At the User End (Referred to FIG. 2):  
         [0030]    1. Activate the human-machine interface A 0  to start the system control unit A 1  as well as all other units of the apparatus.  
         [0031]    2. The radio transmission interface unit A 7  issues a connection request signal to the radio transmission interface unit A 7  of the opposite user for requesting a connection in between.  
         [0032]    3. As the connection is established between the radio transmission interface units A 7 , the direction detection unit A 2  and the longitude-and-latitude detection unit A 3  can obtain the position signals from the satellite and can forward the signals to the operation unit A 4  for being further transformed to become acceptable signals to the apparatus of the present invention. The acceptable signals are further transformed to respective radio signals by the data transmission unit A 6  and then forwarded to the radio transmission interface unit A 7  of the opposite user through the data transmission unit A 6  for requesting the longitude and latitude data of the opposite user.  
         [0033]    4. The operation unit A 4  computes the direction and the longitude-and-latitude data received at the radio transmission interface unit A 7 . If the received data is not complete and the connection request is over time, proceeds to step  5 . Otherwise, keep receiving data. After the incoming data is received completed, the operation unit A 4  can calculate the location and direction of the opposite user and show them on the display unit A 5  as shown in FIG. 4.  
         [0034]    5. End of the process.  
         [0035]    At the Opposite User End (Referred to FIG. 3):  
         [0036]    1. The opposite user can utilize the human-machine interface A 6  to start the system control unit A 1  as well as all other units thereof.  
         [0037]    2. The radio transmission interface unit A 7  receives the connection request signal from the user and then activates to establish the radio connection in between.  
         [0038]    3. The radio transmission interface units A 7  receives the direction and the longitude-and-latitude data from the user, and then the operation unit A 4  is used to process these data. If the received data is not complete and the job is over time, re-connection is required and the process jumps to step  6 .  
         [0039]    4. The direction detection unit A 2  and the longitude-and-latitude detection unit A 3  can obtain the position signals from the satellite and can forward the signals to the operation unit A 4  for being further transformed to become acceptable signals to the apparatus of the present invention. The acceptable signals are further transformed to respective radio signals by the data transmission unit A 6  and then forwarded to the radio transmission interface unit A 7  of the user through the data transmission unit A 6 .  
         [0040]    5. After the incoming data is received completed, the operation unit A 4  can calculate the location and direction of the opposite user and show them on the display unit A 5  as shown in FIG. 4.  
         [0041]    6. End of the process.  
         [0042]    As the process flow described above is fulfilled, exact respective locations of the user and the opposite user can be determined. Also, such useful data can be illustrated by an indicator on the display unit A 5  at either end as shown in FIG. 4. The illustration on the display unit A 5  can vary with the position changes of the user and the opposite user. In addition, both the user and the opposite user can utilize respective microphone M and speaker S to process radio communication through respective voice procession unit A 9 , respective voice transmission unit A 8  and respective radio communication interface unit A 7 .  
         [0043]    Referring now to FIG. 5, another embodiment of the apparatus for locating a receiver of radio communication in accordance with the present invention is present. In this embodiment, previous data transmission unit can include an FSK modulation unit and a mix unit for transforming digital data into voice-frequency signals to facilitate transmission of the radio transmission interface unit. The embodiment of the present invention includes a system control unit B 1 , a direction detection unit B 2 , a longitude-and-latitude detection unit B 3 , an operation unit B 4 , a display unit B 5 , an FSK modulation unit B 6 , a radio communication interface unit B 7 , a voice transmission unit B 8 , a voice procession unit B 9 , a human-machine interface B 0 , a mix unit C, a microphone M′ and a speaker S′.  
         [0044]    The system control unit B 1  is used to control all units of the apparatus.  
         [0045]    The direction detection unit B 2  can use a heading direction of a vehicle or the apparatus as a standard direction for judging a direction of the receiver. The direction detection unit B 2  can be a gyroscope, an electronic compass, or any direction detection element that utilizes GPS Doppler effect.  
         [0046]    The longitude-and-latitude detection unit B 3  can utilize a GPS to receive a satellite&#39;s signals so as to obtain longitude and latitude data of the user for further computation in the operation unit B 4 .  
         [0047]    The operation unit B 4  is controlled by the system control unit B 1  to receive signals from the direction detection unit B 2 , the longitude-and-latitude detection unit B 3  and the data transmission unit B 6 . Those signals can include information of directions, latitudes, longitudes and other position data for both the user and the opposite user.  
         [0048]    The display unit B 5  is used to display the display data transmitted from the operation unit B 4 . The display unit B 5  can be an LCD screen or any displayer that can illustrate the display data for navigating the user to meet the opposite user.  
         [0049]    The FSK modulation unit B 6  can enable the operation unit B 4  to transform the longitude and latitude data of the user and the communication data of an opposite user to voice-frequency signals for analog data transmission of the radio communication interface unit B 7 .  
         [0050]    The radio communication interface unit B 7  is used to establish radio connection with a radio communication device. The radio communication device can be a GSM system, a DCS system, a radio intercom, or any device for radio communication.  
         [0051]    The voice transmission unit B 8  can transform and forward voice signals of the voice procession unit B 9  to the opposite user through the radio communication interface unit B 7 , or can transform incoming voice signals provided by the radio communication interface unit B 7  into signals acceptable to the voice procession unit B 9 .  
         [0052]    The voice procession unit B 9  is used to process the voice signals from the microphone M′ and the voice transmission unit B 8 . The voice procession unit B 9  is also able to eliminate noises, echoes and any unexpected voices.  
         [0053]    The human-machine interface B 0  is used for the user to input settings of the apparatus. The human-machine interface B 0  can be a key-type or touch screen-type input device.  
         [0054]    The mix unit C is used to mix or separate the voice-frequency signals provided by the FSK modulation unit B 9  for being further transmitted through the radio transmission interface unit B 7 .  
         [0055]    The microphone M′ can be used for the user to input voices.  
         [0056]    The speaker S′ can be used for outputting the voice signals of the voice procession unit A 9 .  
         [0057]    By providing all the units described above, the user is able to locate quickly and easily the position of the opposite user.  
         [0058]    While the present invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be without departing from the spirit and scope of the present invention.