METHOD AND SYSTEM FOR SHARING A SIGNAL RECEIVED BY AN ANTENNA
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Apr 23, 2010
filing date -
Apr 23, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Described are a method, system, and mobile communication device for sharing a signal received by an antenna. A signal, such as a signal sent from a global positioning system, is received by the antenna. An amplifier is then used to generate an amplified signal. The amplifier is located an attenuation distance away from a noise source. The amplified signal is divided into a first divided signal and a second divided signal, which are respectively transmitted to first and second signal utilization modules. While being transmitted from the antenna to the first and second signal utilization modules, the signal suffers propagation losses. While locating the amplifier remote from the noise source decreases noise strength, which positively contributes to signal-to-noise ratio, it also increases propagation losses, which negatively contributes to signal-to-noise ratio. The method, system and mobile communication device are designed such that this positive contribution exceeds this negative contribution, resulting in an overall benefit to signal-to-noise ratio. Also beneficially, sharing the signal allows one antenna to be used for both signal utilization modules, lowering manufacturing costs and saving space in the mobile communication device.
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