Patent Publication Number: US-2006009153-A1

Title: Connector attached bluetooth wireless earphone

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The present invention relates to a connector attached bluetooth wireless earphone, in particular, a bluetooth wireless earphone having connectors to be connected to a cassette, a microphone connector, or a built-in microphone to become a hand free bluetooth wireless earphone usable in a vehicle.  
      2. Description of the Prior Art  
      It is prohibited by the traffic law for the driver to use his/her portable cellular phone in the vehicle during the vehicle is running. For this reason there have appeared a variety of hand-free telephones for use in the vehicle obtainable on the market. However, such hand-free telephones can not be used when the driver is out of the vehicle therefore they are not fully convenient.  
      After the disclosure of the bluetooth wireless earphone, it has become possible to solve aforesaid problem by conjoined use of the bluetooth cellular phone with the bluetooth earphone hanging on the driver&#39;s head. In this way the driver is able to use the phone even out of the vehicle. In the meanwhile, it is uncomfortable to have an earphone hanging on the head for a long time, therefore the disclosure of the bluetooth earphone is by no means a real solution to aforesaid problem.  
      For these shortcomings noticeable on the prior art, an improvement is seriously required.  
      It is what the reason the inventor has put forth every effort by continuous research and experimentation attempting to find out the remedy to palliate the inherent shortcomings of the conventional techniques described above, and at last has succeeded in coming up with the present invention.  
     SUMMARY OF THE INVENTION  
      The main object of the present invention is to provide a connector attached bluetooth wireless earphone which can be used in the vehicle in hand-free mode after connected to a microphone or a cassette connector.  
      Another object of the present invention is to provide a connector attached bluetooth wireless earphone that the connector can be attached to any location in the bluetooth wireless earphone without requiring any complicated electric circuit layout.  
      Another object of the present invention is to provide a connector attached bluetooth wireless earphone that the attached connectors may be various types of connectors capable of conveniently accepting transfer extension wires.  
      Another object of the present invention is to provide a connector attached bluetooth wireless earphone which is easily applicable, functional with a simple structure and a long lifetime.  
      To achieve these and other objects mentioned above, in the bluetooth wireless earphone of the present invention, more than one connectors can be attached to the earphone at random locations such that they are connected directly or indirectly with a microphone or a cassette connector and then properly fix the microphone in the vehicle where it is convenient to receive voice when it is incorporated with the use of a bluetooth cellular phone, and can optionally insert the signal wire terminal of the microphone into the attached connector of the bluetooth wireless earphone to receive the audio output. Alternatively, the microphone may be directly built in the bluetooth wireless earphone to receive the audio output. In the case the bluetooth wireless earphone is connected to the cassette connector with each other, the voice signal can be outputted via cassette connector, and then transmitted to a speaker in an on-vehicle audio equipment and outputted therefrom in an on-vehicle hand free receiver mode. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      The features and advantages of the present invention will be fully understood and appreciated from the description of the preferred embodiment accompanied with the following drawings in which:  
       FIG. 1  is a perspective view of the connector attached bluetooth wireless earphone of the present invention;  
       FIG. 2A  and  FIG. 2B  are schematic views of a first embodiment according to the present invention;  
       FIG. 3A  and  FIG. 3B  are schematic views of a second embodiment according to the present invention; and  
       FIG. 4  is an illustrative view showing how the connector attached bluetooth wireless earphone is used in the vehicle as a hand free receiver. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      Referring to  FIG. 1 , in this perspective view of the present invention, a first and a second connectors  11  and  12  are attached at random on a bluetooth wireless earphone  1  in the manner according to actual requirement, and are connected to an electric circuit board equipped in the bluetooth wireless earphone  1  so as to be able to directly or indirectly interconnected to a microphone and a cassette connector.  
      In the schematic view of first embodiment of the present invention shown in  FIG. 2A , the first and the second connectors  11  and  12  are both provided on the outer surface of the housing of the bluetooth wireless earphone  1 . The first and the second connectors  11  and  12  respectively allow a signal wire terminal  21  of the microphone  2  and a signal wire terminal  31  of the cassette connector  3  to insert into thereby forming an on-vehicle hand free receiver  100 .  
      In another schematic view of a first embodiment of the present invention shown in  FIG. 2B , in view of the fact that the size of the bluetooth wireless earphone has a trend to become smaller and shorter, a careful attention should be taken to define specifications for the connector. In addition, the extendable maximum length for both signal wires of the microphone  2  and cassette connector  3  has a limit that in turn limits the selection for location of the device when it is to be equipped in the vehicle. For solving the aforesaid problem, in the present invention, transfer extension wires  41  and  42  are respectively provided between the first connector  11  and the signal wire terminal  21  of the microphone  2 , and between the second connector  12  and the signal wire terminal  31  of the cassette connector  3 .  
      In the schematic view of a second embodiment of the present invention shown in  FIG. 3A , only one connector  13  is provided on the outer surface of the housing of the bluetooth wireless earphone  1  to allow the signal wire terminal  31  of the cassette connector  3  to insert into. With such arrangement, an on-vehicle hand free receiver  100  will be accomplished by joining a microphone  14  built in the bluetooth wireless earphone  1 .  
      In another schematic view of a second embodiment of the present invention shown in  FIG. 3B , a transfer extension wire  43  is provided between the connector  13  and the signal wire terminal  31  of the cassette connector  3  so as to solve the problem which might arise form the incompatibility of wire specification or shortage of length for wiring.  
      As for how to use the earphone of the present invention in the vehicle as an hand free receiver, please refer to  FIG. 4 . As shown in  FIG. 4 , the microphone  2  may be clipped to a proper position and insert the signal wire terminal  21  of the microphone  2  into the connector of the bluetooth wireless earphone  1 , and insert the signal wire terminal  31  of the cassette connector  3  into the other connector of the bluetooth wireless earphone  1 , finally set the cassette connector  3  in a car audio equipment  52  thereby completing the installation of the on-vehicle hand free receiver. By adding a bluetooth cellular phone  6 , the driver can carry out the aim of on-vehicle wireless communication conveniently.  
      It emerges from the above description that the connector attached bluetooth wireless earphone has several noteworthy advantages when being compared with any one made according to the prior art, namely:  
      1. The earphone of the present invention may be carried with the user for application, or interconnected with the connectors of a microphone and a cassette, and then set on the vehicles as a hand free receiver.  
      2. The connector may be clipped to a proper position on the bluetooth wireless earphone without the need for complicated wiring layout.  
      3. The connector may be made into various forms to meet the special application, and facilitate installation by employing a transfer extension wire.  
      4. The bluetooth wireless earphone of the present invention is simply constructed, easy to handle, multi-functional and has a long life time.  
      Many changes and modifications in the above described embodiment of the invention can, of course, be carried out without departing form the scope thereof. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and intended to be limited only by the appended claims.