Methods and devices for identifying selected objects
First Claim
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1. A method of choosing an object from a plurality of objects using a wireless device, wherein each of the plurality of objects includes an RF interface configured to communicate using backscatter communication, the method comprising:
- receiving a backscatter communication signal from each of the plurality of objects;
determining at least one analog parameter of each backscatter communication signal;
detecting movement of the wireless device about at least a partially completed path about an object to be selected, the movement indicative of the object to be selected; and
using the wireless device, selecting one object of the plurality of objects while the wireless device is moving with respect to the plurality of objects, based at least in part on the at least one analog parameter of each backscatter communication signal and based in part on the movement of the wireless device.
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Abstract
A method of choosing an object from multiple objects using a wireless device includes receiving a backscatter communication signal from each of the objects, determining one or more analog parameter of each backscatter communication signal, and, using the wireless device, selecting one object based at least in part on the analog parameter of each backscatter communication signal. Each of the objects includes an RF interface configured to communicate using backscatter communication.
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Citations
28 Claims
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1. A method of choosing an object from a plurality of objects using a wireless device, wherein each of the plurality of objects includes an RF interface configured to communicate using backscatter communication, the method comprising:
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receiving a backscatter communication signal from each of the plurality of objects; determining at least one analog parameter of each backscatter communication signal; detecting movement of the wireless device about at least a partially completed path about an object to be selected, the movement indicative of the object to be selected; and using the wireless device, selecting one object of the plurality of objects while the wireless device is moving with respect to the plurality of objects, based at least in part on the at least one analog parameter of each backscatter communication signal and based in part on the movement of the wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless mobile device used for choosing an object from a plurality of objects, the wireless device comprising:
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an RF interface configured to generate an RF signal and to receive backscatter signals related to the RF signal; a processing unit coupled to the RF interface and configured to; receive a plurality of backscatter signals from the plurality of objects; determine an analog parameter for each of the backscatter signals; detect motion of the wireless mobile device based on the backscatter signals wherein the motion is about at least a partially completed path about an object to be selected, the movement indicative of the object to be selected; and select a selected object from the plurality of objects while the wireless mobile device is moving with respect to the plurality of objects, based at least in part on the analog parameter for each of the backscatter signals and the motion of the wireless mobile device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system comprising:
- a plurality of objects, each having an RF identification tag;
a mobile device comprising an RF interface configured to generate an RF signal and to receive backscatter signals related to the RF signal from each of the plurality of objects and comprising at least one motion detector; a processing unit coupled to the RF interface and the at least one motion detector and configured to; receive a plurality of backscatter signals from the plurality of objects; receive at least one motion signal from the at least one motion detector; determine an analog parameter for each of the backscatter signals; and select a selected object, while the mobile device is moving with respect to the plurality of objects about at least a partially completed path about an object to be selected, the movement indicative of the object to be selected, from the plurality of objects based at least in part on the analog parameter for each of the backscatter signals and based at least in part on the at least one motion signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
- a plurality of objects, each having an RF identification tag;
Specification