MOBILE WIRELESS COMMUNICATIONS DEVICE WITH REDUCED INTERFERENCE FROM THE KEYBOARD INTO THE RADIO RECEIVER

摘要

housing and circuit board carried by the housing. Radio frequency (RF) circuitry carried by the circuit board forms a transmitter and receiver. A processor is carried by the circuit board and operative with the RF circuitr y. A keyboard connector is mounted on the circuit board. A plurality of Key_ Ou t and Key_In connection lines are carried by the circuit board and connect the keyboard connector and processor. A keypad is carried by the housing and operatively connected to the keyboard connector. A filter is operative with each connection line for limiting degradation in receiver sensitivity.