Abstract: A device (100) includes an AM generating circuit (106) which couples interference (132) into another part of the device (124). A second AM signal (304) is generated, having inverse modulation relative to the first AM signal, and is coupled to the affected part of the device to counteract the interference by reducing the effective harmonic content of the first AM signal.

Abstract: A GPS receiver circuit (300) for reducing insertion loss. The receiver circuit (300) includes a switch (304) for diverting input signals between a filtered pathway (312) and a short circuit pathway (310) to an amplifier (314). The amplifier (314) output feeds an automatic gain controller (316) that senses a noise level in the output of the amplifier (314) and adjusts a gain of the amplifier (314) in response to the noise level. The receiver circuit (300) also includes a threshold detector (306) with an input coupled to the output of the automatic gain controller (316) and an output coupled to the switch (304) for selecting between the filtered pathway (312) and the short circuit pathway (310), thereby removing the filter (312) from the signal path if not needed.

Abstract: A device (100) includes an AM generating circuit (106) which couples interference (132) into another part of the device (124). A second AM signal (304) is generated, having inverse modulation relative to the first AM signal, and is coupled to the affected part of the device to counteract the interference by reducing the effective harmonic content of the first AM signal.

Abstract: A method and system for location determination at a mobile communication device 102 is provided. The mobile communication device 102 includes a satellite positioning receiver 410. The mobile communication device 102 acquires a first location aiding parameter and a second location aiding parameter from a first Terrestrial Communication Network (TCN) 108 and a second TCN 110, respectively. Selection of the first TCN 108 and the second TCN 110 is based on the first and second location aiding parameters, respectively. The satellite positioning receiver 410 uses the first and second location aiding parameters to determine the location at the mobile communication device 102.

Abstract: A device (100) has a port (108), a first SPS receiver (104), and a processor (106) coupled to the first SPS receiver and the port. The processor is programmed to detect (102) a second SPS receiver (107) at the port, deactivate (206) the first SPS receiver, and determine (208) a location of the device according to signals received by the second SPS receiver from GPS satellites.