Psuedo Television Transmitters for Position Location
First Claim
Patent Images
1. An apparatus comprising:
- a signal generator to generate an radio-frequency (RF) signal comprising a ranging signal comprising a component of a television signal;
a wireless transmitter to wirelessly transmit the RF signal; and
a self-check unit comprisinga receiver to receive the RF signal, and to recover the ranging signal from the RF signal,a pseudorange circuit to determine a pseudorange based on the ranging signal, anda self-test circuit to generate a self-test output based on the pseudorange.
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Abstract
An apparatus having corresponding methods comprises a signal generator to generate an radio-frequency (RF) signal comprising a ranging signal comprising a component of a television signal; a wireless transmitter to wirelessly transmit the RF signal; and a self-check unit comprising a receiver to receive the RF signal, and to recover the ranging signal from the RF signal, a pseudorange circuit to determine a pseudorange based on the ranging signal, and a self-test circuit to generate a self-test output based on the pseudorange.
107 Citations
27 Claims
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1. An apparatus comprising:
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a signal generator to generate an radio-frequency (RF) signal comprising a ranging signal comprising a component of a television signal; a wireless transmitter to wirelessly transmit the RF signal; and a self-check unit comprising a receiver to receive the RF signal, and to recover the ranging signal from the RF signal, a pseudorange circuit to determine a pseudorange based on the ranging signal, and a self-test circuit to generate a self-test output based on the pseudorange. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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means for generating an radio-frequency (RF) signal comprising a ranging signal comprising a component of a television signal; means for wirelessly transmitting the RF signal; and means for self-checking comprising means for receiving the RF signal, and for recovering the ranging signal from the RF signal, means for determining a pseudorange based on the ranging signal, and means for generating a self-test output based on the pseudorange. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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generating an radio-frequency (RF) signal comprising a ranging signal comprising a component of a television signal; wirelessly transmitting the RF signal; and self-checking comprising receiving the RF signal, recovering the ranging signal from the RF signal, determining a pseudorange based on the ranging signal, and generating a self-test output based on the pseudorange. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification