Abstract:
A mobile communication device. The mobile communication device comprises a main body and a speaker selectively projected from the main body and inserted into user&#39;s ear to obtain better audio quality.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to a mobile communication device, and in particular to a mobile communication device having a projected speaker.  
         [0003]     2. Description of the Related Art  
         [0004]     A conventional mobile communication device, for example, a cell phone, wireless intercom etc, is provided with a speaker mounted inside the mobile communication device. The conventional cell phone either provides insufficient volume or poor audio quality when the volume is increased. If the volume is increases to be sufficiently loud for a person hearing impaired person, it disturbs others.  
         [0005]     U.S. Pat. No. 6,532,292 discloses a speaker inserted into user&#39;s ear, the speaker however is external rather than mounted in the mobile communication device.  
         [0006]     R.O.C. patent 275742 discloses a personal communication device having a supported speaker for insertion into user&#39;s ears. As with the conventional cell phone, it is difficult to use and may disturb others.  
       SUMMARY OF THE INVENTION  
       [0007]     Accordingly, an object of the invention is to provide a mobile communication device.  
         [0008]     The invention provides a mobile communication device having a projected speaker capable of easy insertion into user&#39;s ear.  
         [0009]     The mobile communication device of the invention comprises a main body having a receiver for converting a received radio signal into a vocal signal and a speaker selectively projecting from the main body and coupled to the receiver.  
         [0010]     The mobile communication device further comprises a base and a connector. The base is disposed on the main body and rotatable on a first axis by 90°. The connecter is rotated around a second axis by 360°. The first axis is perpendicular to the second axis. The main body further has a recess accommodating the speaker.  
         [0011]     Several mechanisms can be utilized to eject the speaker from the recess. The main body may have a button, which when pushed causes the speaker to spring from the recess. The main body may have a phone key and a solenoid, the solenoid is actuated to eject the speaker from the recess when the phone key is pushed. The main body may further have a location button which when pressed projects the speaker from the recess.  
         [0012]     A detailed description is given in the following embodiments with reference to the accompanying drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0013]     The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:  
         [0014]      FIG. 1   a  is a perspective view of the first embodiment of the invention;  
         [0015]      FIG. 1   b  is a schematic view showing the cell phone of the invention in use;  
         [0016]      FIG. 2  is a perspective view of the second embodiment of the invention;  
         [0017]      FIG. 3   a  is a perspective view of the third embodiment of the invention;  
         [0018]      FIG. 3   b  is a cross section along A-A line in  FIG. 3   a;    
         [0019]      FIG. 4   a  is a perspective view of the fourth embodiment of the invention; and  
         [0020]      FIG. 4   b  is a cross section along B-B line in  FIG. 4   a.   
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0021]     The invention is applicably to a variety of many mobile communication devices including cell phones in the following. A cell phone is given as an example.  
       FIRST EMBODIMENT  
       [0022]     As shown  FIG. 1   a , a speaker  120  is connected to a base  140  through a connector  130 . The base  140  is disposed on a main body  100 . The main body  100  is including a screen  110  and a microphone  180 . Because the base  140  can pivotally rotate on an X axis by 90°, the speaker  120  can be accommodated in a recess  150 . The connector  130  can rotate on a Y axis by 360° to facilitate insertion of the speaker  120  into on ear and adjustment thereof. As shown in  FIG. 1   b , the main body  100  further has a receiver (not shown) coupled to the speaker  120  for receiving and converting a radio signal to a vocal signal.  
         [0023]     When a user accepts an incoming call, a push bottom  160  is pressed to project the speaker  120  from the recess  150 . In addition to the button  160 , a phone key  170  and a solenoid (not shown) can also be used. When the phone key  170  is pressed, the solenoid is actuated to project the speaker  120  from the recess  150 . The button  160  can also be designed as a location button, i.e. when the button  160  is pressed; the speaker  120  will project out of the recess and retracts when released.  
         [0024]     In addition, the speaker  120  is configured as a is column with a first speaker hole  122  on the top thereof and a plurality of second speaker holes  124  around the periphery thereof, enabling a user to listen to a call without springing out the speaker  120 .  
       SECOND EMBODIMENT  
       [0025]     As shown in  FIG. 2 , the cell phone in this example is a foldable cell phone. The main body of the cell phone includes an upper body  200  and a lower body  290 . The upper body  200  is connected to the lower body  290  by a hinge  2  and a LCD screen  210  on the upper body  200 . A speaker  220  is connected to a base  240  by a connector  230 . The base  240  is disposed on the upper body  200 . As shown in the first embodiment, the base  240  can rotate on an X axis by 90°. The upper body  200  has a first recess  250 , and the lower body  290  has a corresponding second recess  280  provided with an incline  284 . When the main body is folded, the speaker  220  is pressed by the incline  284  and causing it accommodated in to retract into the space formed by the first recess  250  and the second recess  280 . The connector  230  can rotate on a Y axis by 360° for easy insertion of the speaker  220  into user&#39;s ear for adjustment thereof. The upper body  100  further has a receiver (not shown) coupled to the speaker  220  for receiving and converting a radio signal to a vocal signal.  
         [0026]     To engage an incoming call, the folded main body is opened and a button  260  on the upper body  200  is pressed to project the speaker  220  out of the first recess  250 . In addition to the button  260 , a phone key  270  and a solenoid (not shown) can also be used. When the phone key  270  is pressed, the solenoid is actuated to project the speaker  220  out of the recess  250 . The bottom  260  can also be designed as a location button, i.e. when the bottom  260  is pressed, the speaker  220  will project out of the recess, and when released the speaker  220  is accommodated in the recess  250 .  
         [0027]     In addition, the speaker  220  is configured as a column with a first speaker hole  222  on the top thereof and a plurality of second speaker holes  224  around the periphery thereof, enabling a user to listen to a call without projecting the speaker  220 .  
         [0028]     The second recess  280  may have a plurality of sound holes  282 .  
       THIRD EMBODIMENT  
       [0029]     The cell phone in this embodiment is the same as the cell phone described in the first embodiment, except that the speaker  320  is configured as a cone shown in  FIGS. 3   a ,  3   b.  An upper body  300  has a recess  350 . A spring  360  is set in the recess  350  and contacts the speaker  320 . When the cell phone is folded, the speaker  320  is accommodated in the recess and the spring  360  is compressed. When the folding cell phone is open, the speaker  320  is projected out.  
       FOURTH EMBODIMENT  
       [0030]     As shown in  FIGS. 4   a ,  4   b , the speaker  420  has the same shape as the speaker  320 . A lower body  490  of the cell phone has a recess for accommodating the speaker  420 . However, the lower body  490  may alternatively have a through hole  480  for accommodating the speaker  420 . The through hole  480  is provided with a plurality of sound holes  482 .  
         [0031]     In addition, the speaker may have a thermometer for measuring user&#39;s body temperature upon taking a phone call.  
         [0032]     The mobile communication device of the invention is provided with a projecting speaker for insertion into an user&#39;s ear to promote better listening quality and particularly useful for the hearing impaired. In addition, the speaker has a thermometer for measuring user&#39;s body temperature. Compared with conventional cell phones, the invention provides additional functions.  
         [0033]     While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.