TRACKING SYSTEM WITH MOBILE READER
First Claim
1. A tracking system comprising:
- a mobile device that obtains data at a physical location and wirelessly transmits the obtained data from that physical location in a radio frequency (RF) signal;
at least two receiver antennae that receive the RF signal transmitted by the mobile device; and
a central processing unit configured to acquire a timing difference measured from when the RF signal is received by one of the at least two receiver antennae and the RF signal is received by another of the at least two receiver antennae and to calculate the physical location where the mobile device obtained the data from the acquired timing difference.
2 Assignments
0 Petitions
Accused Products
Abstract
A tracking system uses a mobile reader or scanner that scans, for example through a barcode reader, a passive tag reader, a probe, input, camera, or an active RF tag communication reader, and records item (asset or inventory) data. After being recorded, this item data and other relevant data is sent by radio transmission to a receiver network in the tracking system. The receiver network has at least two receivers (or at least two receiver antennae). The scanner location data, calculated by comparing the signal information at each receiver antenna receiving the radio transmission, is then used to register and record the location data of the scanned item.
45 Citations
18 Claims
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1. A tracking system comprising:
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a mobile device that obtains data at a physical location and wirelessly transmits the obtained data from that physical location in a radio frequency (RF) signal; at least two receiver antennae that receive the RF signal transmitted by the mobile device; and a central processing unit configured to acquire a timing difference measured from when the RF signal is received by one of the at least two receiver antennae and the RF signal is received by another of the at least two receiver antennae and to calculate the physical location where the mobile device obtained the data from the acquired timing difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification