Mobile telephone set
A telephone and portable technology, applied in the field of portable telephones, can solve problems such as LSI failure and voice quality degradation
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[0018] The following will be combined with Figure 4 An embodiment of the invention is described, Figure 4 is a cross-sectional portion of a mobile phone according to an embodiment of the present invention. For simplicity of explanation, the display portion and operation buttons are omitted.
[0019] exist Figure 4 Among them, the circuit board 4 is a multilayer printed circuit with a ground layer 40 inside. Integrated circuit elements 41 such as LSI are mounted on the circuit board 4 . The circuit board 4 is electrically connected to the antenna 5 and the rechargeable battery 2 . The circuit board 4 and the rechargeable battery 2 are electrically connected to each other through a pair of power supply pins 6 and a plurality of ground pins 8 . In addition, a pair of charging terminals 3 are provided on the rechargeable battery.
[0020] Figure 5 It is a plan view of the battery housing portion 120 of the mobile phone 1 without the rechargeable battery. Ground pins 8 are...
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