Method for determining line-of-sight (LOS) distance between remote communications devices
First Claim
1. An apparatus for wireless communications, comprising:
- a super regenerative receiver adapted to receive an incoming signal from a remote apparatus, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; and
a first circuit adapted to at least partially determine a distance to the remote apparatus based on the incoming signal.
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Accused Products
Abstract
An apparatus for wireless communications is disclosed including a super regenerative receiver adapted to receive an incoming signal from a remote apparatus, and a circuit adapted to at least partially determine the distance to the remote apparatus based on the incoming signal. The super regenerative receiver may be configured for relatively high sensitivity to allow the distance measurement circuit to discern the line-of-sight (LOS) portion of the incoming signal from the non-LOS portion thereof. Using the time of the LOS portion of the incoming signal, the circuit is able to more accurately determine the distance to the remote apparatus. By sending a signal to the remote apparatus, and receiving a response signal from the remote apparatus, the circuit may determine the distance to the remote apparatus from the respective times of the transmission and reception of the signals.
165 Citations
46 Claims
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1. An apparatus for wireless communications, comprising:
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a super regenerative receiver adapted to receive an incoming signal from a remote apparatus, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; and a first circuit adapted to at least partially determine a distance to the remote apparatus based on the incoming signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for wireless communications, comprising:
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receiving an incoming signal from a remote apparatus using a super regenerative receiver; tuning the super regenerative receiver to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; and at least partially determining a distance to the remote apparatus based on the incoming signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for wireless communications comprising:
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means for receiving an incoming signal from a remote apparatus using a super regenerative receiver, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; and means for at least partially determining the distance to the remote apparatus based on the incoming signal. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A computer program product for determining a distance to a remote apparatus comprising a non-transitory computer readable medium including codes executable by at least one computer to:
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receive an incoming signal from the remote apparatus using a super regenerative receiver, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more, and at least partially determine the distance to the remote apparatus based on the incoming signal.
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44. A headset for wireless communications, comprising:
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an antenna; a super regenerative receiver adapted to receive an incoming signal and data from a remote apparatus via the antenna, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; a circuit adapted to at least partially determine the distance to the remote apparatus based on the incoming signal; and a transducer adapted to generate an audio output from the received data.
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45. A watch for wireless communications, comprising:
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an antenna; a super regenerative receiver adapted to receive an incoming signal and data from a remote apparatus via the antenna, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; a circuit adapted to at least partially determine the distance to the remote apparatus based on the incoming signal; and a display adapted to produce a visual output based on the received data.
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46. A sensed device for wireless communications, comprising:
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a super regenerative receiver adapted to receive an incoming signal from a remote apparatus, wherein the super regenerative receiver is tuned to receive the incoming signal within a defined ultra-wide band channel that has a fractional bandwidth on the order of 20% or more, has a bandwidth on the order of 500 MHz or more, or has a fractional bandwidth on the order of 20% or more and has a bandwidth on the order of 500 MHz or more; a circuit adapted to at least partially determine the distance to the remote apparatus based on the incoming signal; a sensor adapted to generate sensed data; and a transmitter adapted to transmit the sensed data to the remote apparatus based on the distance to the remote apparatus.
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Specification