Reducing cross-interference in a combined GPS receiver and communication system
First Claim
1. A method for reducing interference in a satellite positioning system receiver, said satellite positioning system receiver receiving satellite positioning system signals from a plurality of satellite positioning system satellites, said method comprising:
- establishing a communication link through a communication unit coupled to said satellite positioning system receiver, said communication unit operable to transmit data over said communication link; and
transmitting a control signal to said satellite positioning system receiver from said communication unit upon occurrence of a first condition, said control signal operable to disable processing of satellite positioning signals incident to said satellite positioning system receiver, said first condition comprising transmission of data from said communication unit over said communication link.
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Accused Products
Abstract
A method and apparatus is disclosed for reducing cross-interference in a combined satellite positioning system receiver and communication transceiver device. A control signal is transmitted from the communication transceiver to the satellite positioning system receiver when the communication transceiver transmits data at a high power level over a communication link. The control signal causes satellite positioning system signals from satellites to be blocked from the receiving circuits of the satellite positioning system receiver, or to be disregarded by the processing circuits of the satellite positioning system receiver.
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Citations
20 Claims
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1. A method for reducing interference in a satellite positioning system receiver, said satellite positioning system receiver receiving satellite positioning system signals from a plurality of satellite positioning system satellites, said method comprising:
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establishing a communication link through a communication unit coupled to said satellite positioning system receiver, said communication unit operable to transmit data over said communication link; and transmitting a control signal to said satellite positioning system receiver from said communication unit upon occurrence of a first condition, said control signal operable to disable processing of satellite positioning signals incident to said satellite positioning system receiver, said first condition comprising transmission of data from said communication unit over said communication link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18, 19, 20)
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11. An apparatus comprising:
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a satellite positioning system receiver operable to receive and process satellite positioning system signals from a plurality of satellite positioning system satellites, said satellite positioning system receiver comprising; a receiver circuit coupled to a satellite processing system antenna; and a communication unit operable to transmit data over a communication link, said communication unit comprising; an output amplifier operable to transmit data from said communication unit, and a control device coupled to said output amplifier and to said satellite positioning system receiver, said control device operable to control processing of satellite positioning system signals in said satellite positioning system receiver in accordance with a power level of said output amplification. - View Dependent Claims (12)
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Specification