Wireless relay station for radio frequency-based tracking system
First Claim
1. A position tracking system, comprising:
- a base station with a processor;
at least three spatially separated receiver antennae disposed at locations known to the processor of the base station, each of the at least three receiver antennae receiving electromagnetic signals transmitted by a transmitting antenna of a mobile device; and
one or more relay stations in communication with the base station and with the transmitting antenna of the mobile device, each relay station being disposed at a distance from the base station known to the processor of the base station, each relay station comprising a processor, one or more receiver antennae that receive the electromagnetic signals transmitted by the transmitting antenna of the mobile device, and one or more transmitter antennae, the one or more transmitter antennae of each relay station sending timing information associated with the electromagnetic signals received by the one or more receiver antennae of that relay station to the base station;
wherein the processor of the base station uses the timing information associated with the electromagnetic signals received by and sent from the one or more relay stations to the base station and timing information associated with the electromagnetic signals received by the at least three spatially separated receiver antennae to compute the position of the transmitting antenna of the mobile device.
2 Assignments
0 Petitions
Accused Products
Abstract
System and methods of tracking a position of a mobile device with an electromagnetic signal-transmitting antenna include receiving electromagnetic signals from the transmitting antenna of the mobile device by a plurality of receiver antennae of a base station and by one or more receiver antennae of a relay station. The relay station transmits to the base station timing information associated with the electromagnetic signals received by the one or more receiver antennae of the relay station. The base station computes a position of the transmitting antenna of the mobile device based on timing information computed from the electromagnetic signals received by the plurality of receiver antennae of the base station and on the timing information received from the relay station.
96 Citations
12 Claims
-
1. A position tracking system, comprising:
-
a base station with a processor; at least three spatially separated receiver antennae disposed at locations known to the processor of the base station, each of the at least three receiver antennae receiving electromagnetic signals transmitted by a transmitting antenna of a mobile device; and one or more relay stations in communication with the base station and with the transmitting antenna of the mobile device, each relay station being disposed at a distance from the base station known to the processor of the base station, each relay station comprising a processor, one or more receiver antennae that receive the electromagnetic signals transmitted by the transmitting antenna of the mobile device, and one or more transmitter antennae, the one or more transmitter antennae of each relay station sending timing information associated with the electromagnetic signals received by the one or more receiver antennae of that relay station to the base station; wherein the processor of the base station uses the timing information associated with the electromagnetic signals received by and sent from the one or more relay stations to the base station and timing information associated with the electromagnetic signals received by the at least three spatially separated receiver antennae to compute the position of the transmitting antenna of the mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification