Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2007-07-17
2007-07-17
Le, Thien M. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C455S566000, C455S550100
Reexamination Certificate
active
11065587
ABSTRACT:
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.
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Patent Abstracts of Japan, JP 05-121891 (Hitachi Zosen Corp), May 18, 1993, abstract, 2 pages.
Corrigan Michael
Jarmuszewski Perry
Zhu Lizhong
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Le Thien M.
Research in Motion Limited
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