Portable encoded information reading terminal configured to locate groups of RFID tags
First Claim
1. A device comprising:
- an RFID reader that reads a plurality of RFID tags in an area comprising a plurality of locations and calculates a number of the RFID tags that are in each of the locations; and
a display that;
displays an image of the area, andoverlays a numerical value representing the number of the RFID tags within each of the locations over the respective locations displayed in the image,wherein the display displays a scan trace overlaid over said image;
wherein the scan trace is provided by a line comprising a plurality of time varying points, each point being defined by a projection onto a chosen plane at a given moment in time of a coverage shape of an RF signal transmitted by the RFID reader.
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Accused Products
Abstract
A portable radio-frequency identifier (RFID) reading terminal can comprise a microprocessor, a memory, an RFID reading device, and a display. The portable EIR terminal can be configured, responsive to successfully reading a plurality of RFID tags attached to a plurality of items sustained by a physical structure, to group the plurality of read RFID tags into zero or more clusters, by correlating quantities of RFID tags read within several time periods to spatial positions of the coverage shapes of the RF signals transmitted by the RFID reading device during the several time periods. The EIR terminal can be further configured to determine the spatial positions of the RFID signal coverage shapes based on the spatial positions and orientations of the portable EIR terminal during the several time periods. The EIR terminal can be further configured to display a quantity of RFID tags within each cluster overlaid over an image.
105 Citations
16 Claims
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1. A device comprising:
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an RFID reader that reads a plurality of RFID tags in an area comprising a plurality of locations and calculates a number of the RFID tags that are in each of the locations; and a display that; displays an image of the area, and overlays a numerical value representing the number of the RFID tags within each of the locations over the respective locations displayed in the image, wherein the display displays a scan trace overlaid over said image; wherein the scan trace is provided by a line comprising a plurality of time varying points, each point being defined by a projection onto a chosen plane at a given moment in time of a coverage shape of an RF signal transmitted by the RFID reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device comprising:
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an RFID reader that reads at least one RFID tag in an area and determines a number of the at least one RFID tag that is in the area; and a display that; displays an actual image of the area, and overlays a numerical value for the number of the at least one RFID tag react within the area over the actual image, wherein the display displays a scan trace overlaid over the actual image, and wherein said scan trace is provided by a line comprising a plurality of time varying points, each point being defined by a projection onto a chosen plane at a given moment in time of a coverage shape of an RF signal transmitted by said RFID reader.
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15. A device comprising:
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an RFID reader that reads at least one RFID tag in an area and determines a number of the at least one tag that is in the area; and a display that; displays an image of the area, and overlays a numerical value for the number of the at least one RFID tag read within the area over the image, wherein the display displays a scan trace overlaid over said image; wherein the scan trace is provided by a line comprising a plurality of time varying points each point being defined by a projection onto a chosen plane at a given moment in time of a coverage shape of an RF signal transmitted by said RFID reader. - View Dependent Claims (16)
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Specification