A circuit for at least substantially eliminating at least one external interference signal from a radio communications signal received by a code division multiple access (CDMA) mobile phone including a receiving terminal and a low noise amplifier comprises: a plurality of damping devices operatively...http://www.google.de/patents/US6229797?utm_source=gb-gplus-sharePatent US6229797 - Circuit for eliminating external interference signals in code division multiple access mobile phone
