Abstract:
A portable terminal having an imaging function involves a first housing, a second housing coupled with the first housing rotatably through a coupling section so that the first housing and the second housing overlap one another in a direction of thickness of the first housing and the second housing, a communication section, an imaging section, and a light emitting section that emits light for supplementing imaging by the imaging section, a radio antenna disposed in the first housing, a capacitor that is disposed in the second housing and supplies power to the light emitting section, and a charging section that is disposed in the second housing and charges the capacitor, wherein the charging section and the radio antenna section are positioned not to face one another in a direction of thickness of the first housing and the second housing when the first housing and the second housing overlap one another.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to a portable terminal having an imaging function, and more specifically, to a portable terminal having a light emitting section (strobe) with a xenon discharge tube, with a communication function and an imaging function.  
         [0003]     2. Description of the Related Art  
         [0004]     In the prior arts, an imaging device having an imaging section with a CCD (charge-coupled device) or the like and a light emitting section (strobe) using a xenon discharge tube, which are disposed within the same housing, is known. In such an imaging device, internal electronic circuits are configured such that light from the light emitting section is emitted during imaging operation.  
         [0005]     The xenon discharge tube used in the light emitting section of the imaging device or the like generally requires high voltage. For this reason, voltage is not directly fed from a battery having a low voltage, but from a capacitor to the xenon discharge tube. Here, the capacitor is charged by means of a charging section (DC-DC converter) at a predetermined time prior to the imaging.  
         [0006]     In the portable terminal having a communication function which gets connected to the imaging device having the light emitting section, image captured by the imaging device is transmitted to the portable terminal. In this case, however, when the capacitor in the imaging device is charged, electrical noise is generated from the charging section. As a result, the communication function of the portable terminal is affected by the electrical noise to be erroneously operated. For this reason, an imaging device which, when detecting that the portable terminal is connected, can stop the operation of the light emitting section and charging of the capacitor by the charging section has been suggested (for example, see JP-A-2003-69890).  
         [0007]     Meanwhile, like the portable terminal having the imaging function, a portable terminal having both a communication function and an imaging function is known. Such a portable terminal having the imaging function has been subject to the request that the light emitting section such as the xenon discharge tube or the like is provided and integrated into the housing.  
         [0008]     JP-A-2003-69890 is referred to as a related art.  
         [0009]     However, in the case that the light emitting section such as the xenon discharge tube is provided in a portable terminal having both the communication function and the imaging function, the communication function may be affected by the electrical noise generated during the charging of the capacitor leading to such errors as malfunction of the terminal and noise mixed into voice.  
         [0010]     Further, in order to avoid the erroneous operation of the communication function, the potable terminal may be configured not to use the communication function during the charging of the capacitor. Nevertheless, if an incoming call is received, the communication function may be affected by the electrical noise generated from the charging section leading to the above mentioned errors.  
       SUMMARY OF THE INVENTION  
       [0011]     An object of the present invention is to provide a portable terminal which can reduce the effect from electrical noise generated in a charging section used for charging a capacitor of a light emitting section and which can prevent a communication function of the portable terminal from erroneously operating.  
         [0012]     The invention provides a portable terminal having an imaging function, having: a first housing; a second housing coupled with the first housing rotatably through a coupling section so that the first housing and the second housing can overlap one another in a direction of thickness of the first housing and the second housing; a communication section; an imaging section; a light emitting section that emits light for supplementing imaging by the imaging section; a radio antenna disposed in the first housing; a capacitor that is disposed in the second housing and supplies power to the light emitting section; and a charging section that is disposed in the second housing and charges the capacitor, wherein the charging section and the radio antenna section are positioned not to face one another in a direction of thickness of the first housing and the second housing when the first housing and the second housing overlap one another.  
         [0013]     The invention also provides a portable terminal having an imaging function, having: a first housing; a second housing coupled with the first housing rotatably through a coupling section; a communication section; an imaging section; a light emitting section that emits light for supplementing imaging by the imaging section; a radio antenna located disposed in the second housing; a capacitor that is disposed in the second housing and supplies power to the light emitting section; and a charging section that is disposed in the second housing and charges the capacitor, wherein the radio antenna is positioned at one end of the second housing and the charging section is positioned at another end of the second housing, the one end and the another end which are opposed to one another in a direction of a surface of the second hosing.  
         [0014]     Furthermore, the communication section has a high frequency circuit that processes a high frequency signal, and the light emitting section and the high frequency circuit are disposed in the second housing.  
         [0015]     Furthermore, the communication section has a high frequency circuit that processes a high frequency signal, the light emitting section is disposed in the first housing, the high frequency circuit is disposed in the second housing, the light emitting section and the capacitor are connected through a first wiring that passes through the inside of the coupling section, the radio antenna and the high frequency circuit are connected through a second wiring that passes through the inside of the coupling section, and the first wiring and the second wiring pass through the inside of the coupling section to be away from each other in a direction of width of the coupling section.  
         [0016]     Furthermore, a speaker is disposed in the first housing, and the speaker and the charging section are positioned not to face one another in a direction of thickness of the first housing and the second housing when the first housing and the second housing overlap one another.  
         [0017]     Furthermore, a speaker which outputs a sound is disposed in the second housing, and the speaker is positioned at one end of the second housing and the charging section is positioned at another end of the second housing, the one end and the another end which are opposed to one another in a direction of a surface of the second housing.  
         [0018]     The portable terminal further has a control section that controls the communication section and the charging section, wherein when the communication section receives an incoming call during charging by the charging section, the control section controls the charging section to stop the charging and controls to notify the incoming call.  
         [0019]     Furthermore, when the control section determines that a communication by the communication section based on the incoming call is terminated, the control section controls the charging section to resume the charging.  
         [0020]     According to the portable terminal, it is possible to reduce the effects from electrical noise generated in the charging section used for charging the capacitor of the light emitting section. Therefore, it is possible to prevent the communication function of the portable terminal from erroneously operating. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0021]      FIG. 1  is a perspective view of a cellular phone  2  having an imaging function according to a first embodiment of the present invention;  
         [0022]      FIG. 2  is a block diagram showing a circuit configuration of the cellular phone  2  having an imaging function according to the first embodiment of the present invention;  
         [0023]      FIG. 3  is a plan view of the cellular phone  2  having the imaging function shown in  FIG. 1 ;  
         [0024]      FIG. 4  is a flowchart showing an operation sequence of a control section  76  shown in  FIG. 2 ;  
         [0025]      FIG. 5  is a flowchart showing an operation sequence of the control section  76  of a cellular phone  4  having an imaging function according to a second embodiment of the present invention;  
         [0026]      FIG. 6  is a perspective view of a cellular phone  6  having an imaging function according to a third embodiment of the present invention;  
         [0027]      FIG. 7  is a plan view of the cellular phone  6  having an imaging function shown in  FIG. 6 ;  
         [0028]      FIG. 8  is a plan view of a cellular phone  8  having an imaging function according to a fourth embodiment of the present invention;  
         [0029]      FIG. 9  is a plan view of a cellular phone  10  having an imaging function according to a fifth embodiment of the present invention;  
         [0030]      FIG. 10  is a plan view of a cellular phone  12  having an imaging function according to a sixth embodiment of the present invention;  
         [0031]      FIG. 11  is a plan view of a cellular phone  14  having an imaging function according to a seventh embodiment of the present invention;  
         [0032]      FIG. 12  is a perspective view of a cellular phone  16  having an imaging function according to an eighth embodiment of the present invention;  
         [0033]      FIG. 13  is a plan view of the cellular phone  16  having an imaging function shown in  FIG. 12 ;  
         [0034]      FIG. 14  is a plan view of a cellular phone  18  having an imaging function according to a ninth embodiment of the present invention;  
         [0035]      FIG. 15  is a plan view of a cellular phone  20  having an imaging function according to a tenth embodiment of the present invention; and  
         [0036]      FIG. 16  is a plan view of a cellular phone  22  having an imaging function according to an eleventh embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0037]     Embodiments of a portable terminal having an imaging function according to the present invention will be described with reference to the attached drawings.  
       First Embodiment  
       [0038]     FIGS.  1  to  4  are diagrams illustrating a cellular phone  2  having an imaging function (corresponding to the portable terminal having the imaging function) of a first embodiment of the present invention.  
         [0039]     As shown in  FIG. 1 , the cellular phone  2  having the imaging function according to the present embodiment has an upper housing  36  having a display section  32  such as a LCD (Liquid Crystal Display) and an extendable radio antenna  34 , and a lower housing  40  having an operating section  38 . And then, an end portion  36   a  in a lengthwise direction of the upper housing  36  and an end portion  40   a  in a lengthwise direction of the lower housing  40  are rotatably connected to each other by means of a connecting section  42  employing a hinge structure.  
         [0040]     That is, in the end portion  40   a  of the lower housing  40 , three convex portions  44 ,  46  and  48  are formed to be spaced apart at their respective predetermined intervals from each other in a widthwise direction of the lower housing  40 . Further, in the end portion  36   a  of the upper housing  36 , a projection  50  to be engaged between the convex portion  44  and the convex portion  46  of the end portion  40   a  in the lower housing  40 , and a projection  52  to be engaged between the convex portion  46  and the convex portion  48  are formed.  
         [0041]     And then, the end portion  40   a  of the lower housing  40  and the end portion  36   a  of the upper housing  36  are pinned together such that the adjacent convex portion  44  and the projection  50  may be rotated separately. Though not shown, a pin member to be used for the connection has a hollow shaft structure.  
         [0042]     Further, the convex portion  46  and the projection  50 , the convex portion  46  and the projection  52 , and the convex portion  48  and the projection  50  are pinned on the same shaft line by means of a hollow shaft structure respectively.  
         [0043]     Therefore, internal spaces of the lower housing  40  and the upper housing  36  are linked in a direction which the convex portions  44 ,  46  and  48  and the projections  50  and  52  lie adjacent to each other in the connecting section  42 . Accordingly, an electrical wiring such as a flexible printed wiring board can pass through the lower housing  40  and the upper housing  36 .  
         [0044]     As shown in  FIG. 1 , by rotating the upper housing  36  by a predetermined angle, the cellular phone  2  having the imaging function can be switched over from an opened state in which the operating section  38  is exposed to be operated to a closed state in which the upper housing  36  and the lower housing  40  overlap each other in a thickness direction such that the display section  32  faces an operation surface  40   b  on which the operating section  38  of the lower housing  40  is disposed.  
         [0045]     Further, an imaging section  60  described below is configured such that an imaging lens thereof is exposed on a rear surface opposite to the operation surface  40   b  of the lower housing  40 , and thus it is not shown in  FIG. 1 . Further, a light emitting section  62  is configured such that light is emitted in the same direction as an imaging direction of the imaging section  60 , and thus it is also not shown in  FIG. 1 .  
         [0046]      FIG. 2  is a block diagram showing a circuit configuration of the cellular phone  2  having the imaging function. The cellular phone  2  having the imaging function has the display section  32 , the operating section  38 , a communication section  54 , a communication state detecting section  56 , a storing section  58 , the imaging section  60 , the light emitting section  62 , an electrolytic capacitor  64 , a charging section  66 , a charge completion detecting section  68 , an incoming call notifying speaker  70 , a voice speaker  72 , a microphone  74  and a control section  76  which controls these elements.  
         [0047]     Further, the communication section  54  has a high frequency circuit  54   a  processing a high frequency signal, and the radio antenna  34  is connected to the high frequency circuit  54   a . When the communication section  54  is communicating, the communication state detecting section  56  detects the communication state and outputs a signal indicative of the communication state to the control section  76 . Further, the charge completion detecting section  68  detects whether or not the charge to the electrolytic capacitor  64  by the charging section  66  is completed.  
         [0048]      FIG. 3  shows positions of the radio antenna  34 , and the high frequency circuit  54   a , the imaging section  60 , the light emitting section  62 , the electrolytic capacitor  64 , the charging section  66  and the voice speaker  72  disposed in the cellular phone  2  having the imaging function in a plan view when the cellular phone  2  having the imaging function is in the opened state.  
         [0049]     Inside the upper housing  36  and the lower housing  40 , other components or a printed board, other than the high frequency circuit  54   a , the imaging section  60 , the light emitting section  62 , the electrolytic capacitor  64 , the charging section  66  and the voice speaker  72 , are disposed, but these elements are not shown in  FIG. 3 .  
         [0050]     Note that the high frequency circuit  54   a , the imaging section  60 , the light emitting section  62 , the electrolytic capacitor  64 , the charging section  66  and the voice speaker  72  may be respectively disposed not to overlap other components than these elements in a thickness direction of the upper housing  36  or the lower housing  40 .  
         [0051]     In the following description, in order to specify positions at which the high frequency circuit  54   a , the imaging section  60 , the light emitting section  62 , the electrolytic capacitor  64 , the charging section  66  and the voice speaker  72  are disposed, the inside of each of the upper housing  36  and the lower housing  40  which is defined in a widthwise direction and a lengthwise direction of each of the upper housing  36  and the lower housing  40  is bisected in the widthwise direction and trisected in the lengthwise direction. The respective divisions are marked.  
         [0052]     That is, in the upper housing  36 , two divisions which are disposed in the widthwise direction at an end portion  36   c  opposite to the end portion  36   a  of the connecting section  42  side are marked with reference numerals  36   e  and  36   f , and further, in an order from the division closest to the end portion  36   c , divisions are marked with reference numerals  36   g ,  36   h ,  36   i  and  36   j.    
         [0053]     Further, in the lower housing  40 , two divisions which are disposed in the widthwise direction at the end portion  40   a  of the connecting section  42  side are marked with reference numerals  40   e  and  40   f , and further, in an order from the division closest to an end portion  40   c  opposite to the end portion  40   a , divisions are marked with reference numerals  40   i ,  40   j ,  40   g , and  40   h.    
         [0054]     The radio antenna  34  is disposed in the division  36   e  of the upper housing  36 . Further, though not shown, when the radio antenna  34  is extended, a feeding terminal to be electrically connected to the radio antenna  34  is also disposed in the division  36   e . The voice speaker  72  is disposed at an intermediate position of the division  36   e  and the division  36   f.    
         [0055]     Further, the high frequency circuit  54   a  is disposed in the division  40   e  of the lower housing  40 , and the imaging section  60  and the light emitting section  62  are disposed in the division  40   f . The electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   h.    
         [0056]     Further, in the case in which an incoming call is received when the charging section  66  is charging the electrolytic capacitor  64 , the control section  76  in  FIG. 2  performs the processing operations as shown in a flowchart of  FIG. 4 .  
         [0057]     If an operation for using the light emitting section  62  is performed by a user, the control section  76  allows the charging section  66  to charge the electrolytic capacitor  64 . When the charge is completed, based on a detection signal from the charge completion detecting section  68 , the control section  76  stops the charge by the charging section  66  (“YES” in step S 1  and “YES” in step S 2  of  FIG. 4 ).  
         [0058]     In the case in which a call request is received when the charge by the charging section  66  is being performed (“YES” in step S 1 , “NO” in step S 2  and “YES” in step S 3 ), even when the charge to the electrolytic capacitor  64  is not completed, the charge by the charging section  66  is stopped (step S 4 ). Further, a notifying sound for informing the user of the incoming call is outputted from the incoming call notifying speaker  70 . During the call in step S 5 , the charging section  66  does not perform the charging operation.  
         [0059]     And then, if it is determines that the call is ended (“YES” in step S 6  of  FIG. 4 ), based on the detection signal from the communication state detecting section  56  (see  FIG. 2 ), the control section  76  allows the charging section  66  to resume the charge (step S 7 ), and then the process returns to the flow before step S 2 .  
         [0060]     According to such a cellular phone  2  having the imaging function, as shown in  FIG. 3 , when it is switched over to the closed state in which the upper housing  36  and the lower housing  40  are folded to overlap each other, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  2  from erroneously operating.  
         [0061]     Further, since the light emitting section  62  is disposed in the lower housing  40 , an electrical wiring between the electrolytic capacitor  64  and the light emitting section  62  need not pass through the connecting section  42 . Thus, the electrical wiring does not come close to an electrical wiring between the high frequency circuit  54   a  and the radio antenna  34 . Therefore, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. Thus, it is possible to prevent the communication function of the cellular phone  2  from erroneously operating (for example, an incoming call signal can be accurately detected).  
         [0062]     Further, when the cellular phone  2  having the imaging function is switched over to the closed state, the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0063]     Further, generally, a ceramic capacitor or the like to be used for the charging section  66  generates a minute abnormal sound due to piezoelectric effect. Thus, if the charging section  66  is disposed at a position opposing the voice speaker  72 , since the user brings his ear close to the voice speaker  72  at the time of calling, the user is likely to hear the abnormal sound. To the contrary, in the present embodiment, since the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 , it is possible to prevent the user from hearing the abnormal sound.  
         [0064]     Further, as shown in the flowchart of  FIG. 4 , in the case in which an incoming call is received during the charge to the electrolytic capacitor  64  by the charging section  66 , the control section  76  stops the charging operation by the charging section  66 . Thus, it is possible to prevent the communication function of the cellular phone  2  from erroneously operating.  
       Second Embodiment  
       [0065]     Next, a cellular phone  4  having an imaging function according to a second embodiment of the present invention will be described with reference to  FIG. 5 . The cellular phone  4  having the imaging function according to the present embodiment has the same configuration as that of the cellular phone  2  having the imaging function according to the first embodiment, except that the control section  76  performs different processing operations.  
         [0066]     If the use of the light emitting section  62  at the time of capturing an image is selected by an operation of the user, the control section  76  of the cellular phone  4  having the imaging function allows the charging section  66  to automatically start the charge to the electrolytic capacitor  64 . And then, the control section  76  performs processing operations as shown in  FIG. 5  just before the charging operation is started.  
         [0067]     Just before the charge of the electrolytic capacitor  64  by the charging section  66  is started, based on the detection signal from the charge completion detecting section  68  (see  FIG. 2 ), the control section  76  determines whether or not the charge of the electrolytic capacitor  64  is completed to have a constant voltage required for using the light emitting section  62  (step S 11  of  FIG. 5 ).  
         [0068]     And then, if it is determined that the capacitor is not charged up to the constant voltage and the charge is required (“NO” in step S 11 ), the control section  76  determines whether or not the communication section  54  is communicating (step S 12 ). The determination in step S 12  is performed based on the signal from the communication state detecting section  56 .  
         [0069]     If the communication section  54  is not communicating (“NO” in step S 12 ), the control section  76  allows the charging section  66  to start the charging operation to the electrolytic capacitor  64  (step S 13 ). If the communication section  54  is communicating (“YES” in step S 12 ), even when the charge to the electrolytic capacitor  64  is required, the control section  76  stops starting the charging operation (step S 14 ).  
         [0070]     And then, based on the signal from the communication state detecting section  56 , the control section  76  controls the charging section  66  not to start the charging operation during consecutive communication state (“YES” in step S 15 ). If communication is ended, the control section  76  allows the charging section  66  to start the charge (“NO” in step S 15  and step S 16 ).  
         [0071]     According to such a cellular phone  4  having the imaging function of the present embodiment, similarly to the first embodiment shown in  FIG. 3 , when it is switched over to the closed state in which the upper housing  36  and the lower housing  40  are folded to overlap each other, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  4  from erroneously operating.  
         [0072]     Further, similarly to the first embodiment, since the light emitting section  62  is disposed in the lower housing  40 , it is not necessarily configured such that the electrical wiring between the electrolytic capacitor  64  and the light emitting section  62  passes through the connecting section  42 . Thus, at the time of allowing the light emitting section  62  to emit, a high voltage current of hundreds voltages is supplied from the electrolytic capacitor  64 , but the electrical wiring does not come close to the electrical wiring between the high frequency circuit  54   a  and the radio antenna  34 . Therefore, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. As a result, it is possible to prevent the communication function of the cellular phone  4  from erroneously operating.  
         [0073]     Further, similarly to the first embodiment, when the cellular phone  4  having the imaging function is switched over to the closed state, the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0074]     Further, generally, a ceramic capacitor or the like to be used for the charging section  66  generates a minute abnormal sound due to piezoelectric effect. Thus, if the charging section  66  is disposed at a position opposing the voice speaker  72 , since the user brings his ear close to the voice speaker  72  at the time of calling, the user is likely to hear the abnormal sound. To the contrary, in the present embodiment, since the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 , it is possible to prevent the user from hearing the foreign sound.  
         [0075]     Further, as shown in the flowchart of  FIG. 5 , just before the charge to the electrolytic capacitor  64  by the charging section  66  is automatically started, the control section  76  determines whether or not the communication section  54  is in the communication state. And then, if it is determined that the communication section  54  is in the communication state, the control section  76  stops the charging operation. Thus, it is possible to prevent the communication function of the cellular phone  4  from erroneously operating.  
       Third Embodiment  
       [0076]     Next, a cellular phone  6  having an imaging function according to a third embodiment of the present invention will be described with reference to  FIGS. 6 and 7 .  
         [0077]     As shown in  FIG. 6 , the cellular phone  6  having the imaging function according to the present embodiment has the upper-housing  36  having the display section  32 , and the lower housing  40  having the operating section  38 . The end portions  36   a  and  40   a  of the upper housing  36  and the lower housing  40  are connected by means of a connecting shaft  78  (the connecting section) having a shaft line substantially orthogonal to the operation surface  40   b  on which the operating section  38  of the lower housing  40  is disposed. Further, the upper housing  36  and the lower housing  40  are configured to freely rotate (freely open and close) in a parallel direction to each other. The connecting shaft  78  has a hollow shape, and an electrical wiring between the upper housing  36  and the lower housing  40  is configured to pass through the connecting shaft  78 .  
         [0078]     In the cellular phone  6  having the imaging function, it is configured such that a display surface of the display section  32  may be exposed to the outside in an opened state in which a user can operate the operating section  38 , like a state shown in  FIG. 6 , and in a closed state in which the upper housing  36  rotates by substantially 180° to the lower housing  40  from the opened state such that the upper housing  36  and the lower housing  40  overlap each other in the thickness direction.  
         [0079]     As shown in  FIG. 7 , the radio antenna  34  and the voice speaker  72  are disposed to extend over the division  36   e  and the division  36   f  of the upper housing  36 . Further, the high frequency circuit  54   a  is disposed in the division  40   e  of the lower housing  40 , and the imaging section  60  and the light emitting section  62  are disposed in the division  40   f . The electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   h.    
         [0080]     According to such a cellular phone  6  having the imaging function of the present embodiment, similarly to the above-mentioned first and second embodiments, when the upper housing  36  and the lower housing  40  rotate to each other such that the cellular phone  6  having the imaging function is switched over to the closed state, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  6  from erroneously operating.  
         [0081]     Further, similarly to the above-mentioned first and second embodiments, since the light emitting section  62  is disposed in the lower housing  40 , it is not necessarily configured that the electrical wiring between the electrolytic capacitor  64  and the light emitting section  62  passes through the connecting shaft  78 . Thus, the electrical wiring does not come close to the electrical wiring between the high frequency circuit  54   a  and the radio antenna  34 . Therefore, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. As a result, it is possible to prevent the communication function of the cellular phone  6  from erroneously operating.  
         [0082]     Further, similarly to the above-mentioned first and second embodiments, when the cellular phone  6  having the imaging function is switched over to the closed state, the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0083]     Further, generally, a ceramic capacitor or the like to be used for the charging section  66  generates a minute foreign sound due to piezoelectric effect. Thus, if the charging section  66  is disposed at a position opposing the voice speaker  72 , since the user brings his ear close to the voice speaker  72  at the time of calling, the user is likely to hear the foreign sound. To the contrary, in the present embodiment, since the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 , it is possible to prevent the user from hearing the foreign sound.  
       Fourth Embodiment  
       [0084]     Next, a cellular phone  8  having an imaging function according to a fourth embodiment of the present invention will be described with reference to  FIG. 8 .  
         [0085]     The cellular phone  8  having the imaging function according to the present embodiment is configured, like the above-mentioned first embodiment, such that the upper housing  36  and the lower housing  40  are folded to overlap each other. And then, the radio antenna  34  is disposed in the division  36   e  of the upper housing  36 . Further, the voice speaker  72  is disposed at an intermediate position of the division  40   e  and the division  40   f  of the lower housing  40 . The high frequency circuit  54   a  is disposed in the division  40   g , and the imaging section  60  and the light emitting section  62  are disposed in the division  40   h . The electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   j.    
         [0086]     According to such a cellular phone  8  having the imaging function of the present embodiment, similarly to the previously-mentioned first and second embodiments, when it is switched over to the closed state in which the upper housing  36  and the lower housing  40  are folded to overlap each other, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  8  from erroneously operating.  
         [0087]     Further, similarly to the above-mentioned first and second embodiments, since the light emitting section  62  is disposed in the lower housing  40 , it is not necessarily configured such that the electrical wiring between the electrolytic capacitor  64  and the light emitting section  62  passes through the connecting section  42 . Thus, the electrical wiring does not come close to the electrical wiring between the high frequency circuit  54   a  and the radio antenna  34 . Therefore, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. As a result, it is possible to prevent the communication function of the cellular phone  8  from erroneously operating.  
         [0088]     Further, since the voice speaker  72  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 , the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Thus, it is possible to prevent the noise from interfering in a voice to be outputted.  
       Fifth Embodiment  
       [0089]     Next, a cellular phone  10  having an imaging function according to a fifth embodiment of the present invention will be described with reference to  FIG. 9 .  
         [0090]     The cellular phone  10  having the imaging function according to the present embodiment is configured, like the above-mentioned third embodiment, such that the upper housing  36  and the lower housing  40  rotate in a parallel direction to each other. And then, the radio antenna  34  is disposed to extend over the division  36   i  and the division  36   j  of the upper housing  36 . Further, the voice speaker  72  is disposed at an intermediate position of the division  40   e  and the division  40   f  of the lower housing  40 . The high frequency circuit  54   a  is disposed in the division  40   g , and the imaging section  60  and the light emitting section  62  are disposed in the division  40   h . The electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   j.    
         [0091]     According to such a cellular phone  10  having the imaging function of the present embodiment, similarly to the above-mentioned third embodiment, when it is switched over to the closed state in which the upper housing  36  and the lower housing  40  are folded to overlap each other, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Thus, it is possible to prevent the communication function of the cellular phone  10  from erroneously operating.  
         [0092]     Further, similarly to the above-mentioned third embodiment, since the light emitting section  62  is disposed in the lower housing  40 , the electrical wiring between the electrolytic capacitor  64  and the light emitting section  62  need not pass through the connecting shaft  78 . Thus, the electrical wiring does not come close to the electrical wiring between the high frequency circuit  54   a  and the radio antenna  34 . Therefore, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. As a result, it is possible to prevent the communication function of the cellular phone  10  from erroneously operating.  
         [0093]     Further, like the above-mentioned fourth embodiment, since the voice speaker  72  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 , the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Thus, it is possible to prevent the noise from interfering in a voice to be outputted.  
       Sixth Embodiment  
       [0094]     Next, a cellular phone  12  having an imaging function according to a sixth embodiment of the present invention will be described with reference to  FIG. 10 .  
         [0095]     The cellular phone  12  having the imaging function according to the present embodiment is configured, like the previously-mentioned first embodiment and so on, such that the upper housing  36  and the lower housing  40  are folded to overlap each other. And then, the radio antenna  34  is disposed in the division  36   e  of the upper housing  36 , and the voice speaker  72  is disposed at an intermediate position of the division  36   e  and the division  36   f . The imaging section  60  and the light emitting section  62  are disposed in the division  36   j . Further, the high frequency circuit  54   a  is disposed in the division  40   i  of the lower housing  40 , and the electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   h.    
         [0096]     And then, a first wiring  80  for electrically connecting the light emitting section  62  and the electrolytic capacitor  64  passes through the convex portion  48  and the projection  50  in the connecting section  42 . Further, a second wiring  82  for electrically connecting the radio antenna  34  and the high frequency circuit  54   a  passes through the convex portion  44  and the projection  50  in the connecting section  42 . In such a manner, the first wiring  80  and the second wiring  82  pass through the connecting section  42  while being spaced from each other.  
         [0097]     According to such a cellular phone  12  having the imaging function of the present embodiment, similarly to the above-mentioned first embodiment and so on, when it is switched over to the closed state in which the upper housing  36  and the lower housing  40  are folded to overlap each other, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  12  from erroneously operating.  
         [0098]     Further, since the first wiring  80  and the second wiring  82  pass through the connecting section  42  while being spaced from each other, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. Thus, it is possible to prevent the communication function of the cellular phone  12  from erroneously operating.  
         [0099]     Further, similarly to the above-mentioned first embodiment, when the cellular phone  12  having the imaging function is switched over to the closed state, the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0100]     Further, generally, a ceramic capacitor or the like to be used for the charging section  66  generates a minute foreign sound due to piezoelectric effect. Thus, if the charging section  66  is disposed at a position opposing the voice speaker  72 , since the user brings his ear close to the voice speaker  72  at the time of calling, the user is likely to hear the foreign sound. To the contrary, in the present embodiment, since the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 , it is possible to prevent the user from hearing the foreign sound.  
       Seventh Embodiment  
       [0101]     Next, a cellular phone  14  having an imaging function according to a seventh embodiment of the present invention will be described with reference to  FIG. 11 .  
         [0102]     In the cellular phone  14  having the imaging function according to the present embodiment, the radio antenna  34  is disposed in the division  36   e  of the upper housing  36 , and the imaging section  60  and the light emitting section  62  are arranged in the division  36   j . Further, the voice speaker  72  is disposed in an intermediate position of the division  40   e  and the division  40   f  of the lower housing  40 . The high frequency circuit  54   a  is disposed in the division  40   g , and the electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   j.    
         [0103]     According to such a cellular phone  14  having the imaging function of the present embodiment, similarly to the above-mentioned first embodiment, when it is switched over to the closed state in which the upper housing  36  and the lower housing  40  are folded to overlap each other, the radio antenna  34  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  14  from erroneously operating.  
         [0104]     Further, since the first wiring  80  and the second wiring  82  pass through the connecting section  42  while being spaced from each other, the effects on the high frequency circuit  54   a  and the radio antenna  34  from noise, which is generated at the time of feeding from the electrolytic capacitor  64  to the light emitting section  62 , can be reduced. Thus, it is possible to prevent the communication function of the cellular phone  14  from erroneously operating.  
         [0105]     Further, since the voice speaker  72  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 , the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Thus, it is possible to prevent the noise from interfering in a voice to be outputted.  
       Eighth Embodiment  
       [0106]     Next, a cellular phone  16  having an imaging function according to an eighth embodiment of the present invention will be described with reference to  FIGS. 12 and 13 .  
         [0107]     As shown in  FIG. 12 , the cellular phone  16  having the imaging function according to the present embodiment is configured, like the above-mentioned first embodiment, such that the upper housing  36  and the lower housing  40  are folded to overlap each other. However, the present embodiment is different from the first embodiment or the like in that the radio antenna  34  is provided in the lower housing  40 .  
         [0108]     As shown in  FIG. 13 , in the cellular phone  16  having the imaging function, the voice speaker  72  is disposed in the division  36   e  of the upper housing  36 . Further, the radio antenna is disposed in the division  40   e  of the lower housing  40 , and the imaging section  60  and the light emitting section  62  are disposed in the division  40   f . Further, the electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   j.    
         [0109]     According to such a cellular phone  16  having the imaging function of the present embodiment, the radio antenna  34  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  16  from erroneously operating.  
         [0110]     Further, similarly to the above-mentioned first embodiment, when the cellular phone  16  having the imaging function is switched over to the closed state, the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0111]     Further, generally, a ceramic capacitor or the like to be used for the charging section  66  generates a minute foreign sound due to piezoelectric effect. Thus, if the charging section  66  is disposed at a position opposing the voice speaker  72 , since the user brings his ear close to the voice speaker  72  at the time of calling, the user is likely to hear the foreign sound. To the contrary, in the present embodiment, since the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 , it is possible to prevent the user from hearing the foreign sound.  
       Ninth Embodiment  
       [0112]     Next, a cellular phone  18  having an imaging function according to a ninth embodiment of the present invention will be described with reference to  FIG. 14 .  
         [0113]     The cellular phone  18  having the imaging function according to the present embodiment is configured, like the above-mentioned third embodiment, such that the upper housing  36  and the lower housing  40  rotate in a parallel direction to each other. And then, the voice speaker  72  is disposed at an intermediate position of the division  36   e  and the division  36   f  of the upper housing  36 . Further, the electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   f  of the lower housing  40 . The imaging section  60  and the light emitting section  62  are disposed in the division  40   h , and the radio antenna  34  is disposed to extend over the division  40   i  and the division  40   j.    
         [0114]     According to such a cellular phone  18  having the imaging function of the present embodiment, similarly to the above-mentioned eighth embodiment, the radio antenna  34  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  18  from erroneously operating.  
         [0115]     Further, similarly to the above-mentioned first embodiment, when the cellular phone  18  having the imaging function is switched over to the closed state, the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 . Thus, the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0116]     Further, generally, a ceramic capacitor or the like to be used for the charging section  66  generates a minute foreign sound due to piezoelectric effect. Thus, if the charging section  66  is disposed at a position opposing the voice speaker  72 , since the user brings his ear close to the voice speaker  72  at the time of calling, the user is likely to hear the foreign sound. To the contrary, in the present embodiment, since the voice speaker  72  and the charging section  66  do not face each other in the thickness directions of the upper housing  36  and the lower housing  40 , it is possible to prevent the user from hearing the foreign sound.  
       Tenth Embodiment  
       [0117]     Next, a cellular phone  20  having an imaging function according to a tenth embodiment of the present invention will be described with reference to  FIG. 15 .  
         [0118]     The cellular phone  20  having the imaging function according to the present embodiment is configured, like the above-mentioned eighth embodiment, such that the upper housing  36  and the lower housing  40  are folded to overlap each other, and the radio antenna  34  is provided in the lower housing  40 . And then, the radio antenna  34  is disposed in the division  40   e  of the lower housing  40 , and the voice speaker  72  is disposed at an intermediate position of the division  40   e  and the division  40   f . Further, the imaging section  60  and the light emitting section  62  are disposed in the division  40   h , and the electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   j.    
         [0119]     According to such a cellular phone  20  having the imaging function of the present embodiment, the radio antenna  34  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  20  from erroneously operating.  
         [0120]     Further, like the radio antenna  34 , the voice speaker  72  is disposed at the end portion  40   a  opposite to the charging section  66 , and thus the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
       Eleventh Embodiment  
       [0121]     Next, a cellular phone  22  having an imaging function according to an eleventh embodiment of the present invention will be described with reference to  FIG. 16 .  
         [0122]     The cellular phone  22  having the imaging function according to the present embodiment is configured, like the above-mentioned third embodiment, such that the upper housing  36  and the lower housing  40  rotate in a parallel direction to each other. And then, the radio antenna  34  is disposed to extend over the division  40   e  and the division  40   f  of the lower housing  40 , and the voice speaker  72  is disposed at an intermediate position of the division  40   e  and the division  40   f . Further, the imaging section  60  and the light emitting section  62  are disposed in the division  40   h , and the electrolytic capacitor  64  and the charging section  66  are disposed in the division  40   j.    
         [0123]     According to such a cellular phone  22  having the imaging function of the present embodiment, the radio antenna  34  and the charging section  66  are respectively disposed at the different end portions  40   a  and  40   c  of the lower housing  40 . Thus, the effects on the radio antenna  34  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the communication function of the cellular phone  22  from erroneously operating.  
         [0124]     Further, like the radio antenna  34 , the voice speaker  72  is disposed at the end portion  40   a  opposite to the charging section  66 , and thus the effects on the voice speaker  72  from electrical noise generated by the charging section  66  can be reduced. Therefore, it is possible to prevent the noise from interfering in a voice to be outputted.  
         [0125]     Moreover, the control section  76  of the cellular phone  2  having the imaging function according to the first embodiment is configured, in the processing operations of the flowchart shown in  FIG. 4 , to stop the charging operation by the charging section  66  in step S 4 , and then to resume the charging operation in step S 7 . However, the processing operations from step S 5  to step S 7  may not be performed by the control section  76 .  
         [0126]     Further, the control section  76  of the cellular phone  4  having the imaging function according to the second embodiment is configured, in the processing operations of the flowchart shown in  FIG. 5 , to stop the start of the charging operation by the charging section  66  in step S 4 , and then to start the charging operation in step S 6 . However, the processing operations of step S 5  and step S 6  may not be performed by the control section  76 .  
         [0127]     Further, the control section  76  of each of the cellular phones  6 ,  8 ,  10 ,  12 ,  14 ,  16 ,  20  and  22  having the imaging function according to the third to eleventh embodiments may be configured to perform processing operations based on the flowchart of  FIG. 4  or  5 , like the control section  76  of the first and second embodiment.  
         [0128]     Further, in the first to eleventh embodiments, the upper housing  36  and the lower housing  40  are respectively divided into the six divisions, in which the radio antenna  34 , the high frequency circuit  54   a , the imaging section  60 , the light emitting section  62 , the electrolytic capacitor  64 , the charging section  66  and the voice speaker  72  are disposed. However, the number of the divisions is not limited to six. For example, based on the same technical concept, the upper housing  36  and the lower housing  40  may be respectively divided such that the respective divisions are large enough for the respective components to be disposed in.  
         [0129]     Further, the first to eleventh embodiments are described in accordance with the examples in which the radio antenna  34 , and the high frequency circuit  54   a , the imaging section  60 , the light emitting section  62 , the electrolytic capacitor  64 , the charging section  66  and the voice speaker  72  to be disposed in the cellular phone  2  having the imaging function are disposed in the respective insides of the upper housing  36  and the lower housing  40 . Alternatively, in the descriptions, the terms of “the upper housing  36 ” and “the lower housing  40 ” may be interchanged.  
         [0130]     That is, assuming that, among the upper housing  36  and the lower housing  40 , one housing in which the charging section  66  is disposed is generally referred to as a first housing, and another housing is referred to as a second housing, “the upper housing  36 ” and “the lower housing  40 ” may be referred to as “the second housing” and “the first housing” respectively like the examples described in the first to the eleventh embodiments. Reversely, “the upper housing  36 ” and “the lower housing  40 ” may be referred to as “the first housing” and “the second housing”.  
         [0131]     Further, in the first to eleventh embodiments, the present invention is applied to the cellular phones  2  to  22  having the imaging function. However, it is needless to say that the present invention may be applied to other portable terminals having an imaging function which has the light emitting section.