Methods and Systems for Validating Code from a Wireless Device
First Claim
1. A method of validating code from a wireless device, comprising:
- a) broadcasting a signal from a reader to the wireless device;
b) reading a validation code transmitted, re-radiated, and/or backscattered from the wireless device, the validation code having a predetermined quality, characteristic, and/or property;
c) comparing the validation code to a reference quality, characteristic and/or property; and
d) validating the validation code when the predetermined quality, characteristic, and/or property of the validation code matches the reference quality, characteristic, and/or property.
4 Assignments
0 Petitions
Accused Products
Abstract
Methods, algorithms, architectures, circuits, and/or systems for managing POR-less integrated circuits are disclosed. The method of validating code from a wireless device can include: (i) broadcasting a signal from a reader to the wireless device, (ii) reading a code transmitted, re-radiated, and/or backscattered from the wireless device, the code having a predetermined quality, characteristic, and/or property, (iii) comparing the code to a reference quality, characteristic, and/or property, and (iv) validating the code when the predetermined quality, characteristic, and/or property matches the reference quality, characteristic, and/or property. Embodiments of the present invention can advantageously provide a reliable approach for validating integrated circuits that do not incorporate a POR circuit, and which therefore may transmit spurious bits of data upon being energized. In addition, embodiments of the present invention advantageously allow an Aloha-type anti-collision function to be implemented in a reader based on POR-less integrated circuits.
28 Citations
26 Claims
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1. A method of validating code from a wireless device, comprising:
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a) broadcasting a signal from a reader to the wireless device; b) reading a validation code transmitted, re-radiated, and/or backscattered from the wireless device, the validation code having a predetermined quality, characteristic, and/or property; c) comparing the validation code to a reference quality, characteristic and/or property; and d) validating the validation code when the predetermined quality, characteristic, and/or property of the validation code matches the reference quality, characteristic, and/or property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A reader for validating a code transmission, comprising:
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a) an antenna configured to broadcast a wireless signal; b) a wireless communication module configured to modulate the wireless signal to be broadcast by the antenna and/or demodulate a response transmitted, re-radiated, or backscattered from a wireless device, the response comprising a validation code having a predetermined quality, characteristic, and/or property; c) a validation circuit configured to compare the predetermined quality, characteristic and/or property to a reference quality, characteristic, and/or property, and validate the validation code when the validation code received matches the reference quality, characteristic and/or property; and d) a controller configured to process, convey, and/or manage communication(s) with the wireless device. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A device, comprising:
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a) an antenna configured to receive a wireless signal from a reader and re-radiate, broadcast, or backscatter a response signal, the response signal comprising a validation code having a predetermined quality, characteristic, and/or property; b) a wireless communication circuit coupled to the antenna, the wireless communication circuit configured to demodulate or otherwise process the wireless signal and modulate an absorption of the wireless signal to provide the response signal; and c) a response circuit comprising (1) a memory including a validation code storage area, and (2) a response generator configured to transmit the validation code. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification