发明名称 |
MOBILE WIRELESS COMMUNICATIONS DEVICE WITH REDUCED INTERFERING ENERGY FROM THE KEYBOARD |
摘要 |
A mobile wireless communications device includes a circuit board carried by a housing and having RF circuitry and a processor operative with the RF circuitry. A keyboard is carried by the housing and includes a keypad array circuit. A keypad connector is carried by the keypad and is operatively connected to the RF circuitry and processor. A plurality of Key_Out and Key_In connection lines connect the keypad connector and keypad array circuit. Filters carried by the keyboard are connected into each Key_Out and Key_In connection line for reducing RF energy picked up from either the antenna or external interference and interfering with normal processor operation. |
申请公布号 |
EP1790185(A4) |
申请公布日期 |
2007.12.05 |
申请号 |
EP20050714547 |
申请日期 |
2005.03.01 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
ZHU, LIZHONG;CORRIGAN, MICHAEL;JARMUSZEWSKI, PERRY |
分类号 |
H04Q7/32;H04B1/10 |
主分类号 |
H04Q7/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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