GPS receiver with improved immunity to burst transmissions
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United States of America Patent
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Jul 20, 2010
Grant Date -
Jun 17, 2010
app pub date -
Dec 14, 2005
filing date -
Dec 14, 2005
priority date (Note) -
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Abstract
GPS signals are typically weak and thus easily interfered with by other radio transmissions in the same or adjacent frequency bands. Interference can be especially problematic when the GPS receiver is co-located with a communications device that includes a radio transmitter, such as a cellular telephone. The transmitted signal from the co-located communication device can overload (or saturate) the GPS receiver front-end designed to receive weak GPS signals. In such a situation no useful information can be extracted from the received GPS signals originating from the GPS satellites. Described herein is a novel apparatus and method that can be used to minimize the effect of co-located interference on a GPS receiver.
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