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US 2018/0123645 A1Published application
Nfc tag recognition device and nfc tag recognition system including the same
AssigneeSamsung Electronics Co., Ltd.
InventorWON CHURL JANG
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Abstract
An NFC tag recognition device includes an antenna responsive to signals transmitted by an NFC tag, a radio frequency (RF) signal processor measuring power of the signal received by the antenna from the NFC tag and converting the signal into digital data, an NFC controller extracting an authentication key from the digital data, an authentication signal processor generating an authentication pattern from the NFC tag, and an authentication signal storage storing an authentication key and an authentication pattern of a registered user. The authentication signal processor generates an authorization grant signal if the extracted authentication key matches the stored authentication key and the generated authentication pattern matches the stored authentication pattern.
Claims21
A near-field communication (NFC) tag recognition device, comprising:
- at least one antenna;
- a radio frequency (RF) signal processor operatively connected to the at least one antenna and configured to measure power of an RF signal received by the at least one antenna from an external device comprising an NFC tag and convert the RF signal into digital data;
- an NFC controller operatively connected to the RF signal processor and configured to extract an authentication key from the digital data generated by the RF signal processor;
- an authentication signal processor configured to generate data of an authentication pattern by calculating the distance between the NFC tag and a reference point and changes in the distance using power measurements produced by the RF signal processor;
- and
- an authentication signal storage configured to store an authentication key and data of an authentication pattern of a user, and
- wherein the authentication signal processor is operatively connected to the authentication signal storage such that an authentication key and data of an authentication pattern stored in the authentication signal storage are accessible by the authentication signal processor, and
- the authentication signal processor is configured to compare the authentication key extracted by the NFC controller with an authentication key stored in the authentication signal storage, to compare the data of the authentication pattern generated by the authentication signal processor with data of an authentication pattern stored in the authentication signal storage, and to generate an authorization grant signal if, at a minimum, both the authentication key extracted by the NFC controller matches the authentication key stored in the authentication signal storage and the data of the authentication pattern generated by the authentication signal processor corresponds to the data of the authentication pattern stored in the authentication signal storage.
5 more elements
13-18. (canceled)
A near-field communication (NFC) tag-based recognition system, comprising:
- at least one NFC tag that emits a radio frequency (RF) signal;
- and
- an NFC tag recognition device configured to generate data of an authentication pattern by computing changes in locations of each said at least one NFC tag relative to the device,
- wherein the NFC tag recognition device includes at least one antenna responsive to the RF signal emitted by each said at least one NFC tag, a radio frequency (RF) signal processor operatively connected to the at least one antenna and configured to measure power of an RF signal received by each said at least one antenna from said at least one NFC tag and convert the RF signal into digital data, an NFC controller operatively connected to the RF signal processor and configured to generated a response signal based on digital data generated by the RF signal processor, an authentication signal processor operatively connected to the RF signal processor and configured to generate the data of an authentication pattern by calculating a distance between a reference point and each said at least one NFC tag and changes in the distance between the reference point and each said at least one NFC tag using power measurements produced by the RF signal processor, an authentication signal storage configured to store data of an authentication pattern of a user, and a system controller operatively connected to the authentication signal processor to generate a control signal when an authorization grant signal is generated by the authentication signal processor,
- wherein the authentication signal processor is operatively connected to the authentication signal storage such that data of an authentication pattern of a user stored in the authentication signal storage is accessible by the authentication signal processor, and
- the authentication signal processor is configured to compare data of an authentication pattern generated by the authentication signal processor with data of an authentication pattern stored in authentication signal storage and is operative to generate the authorization grant signal if, at a minimum, the data of the authentication pattern generated by the authentication signal processor corresponds to the data of the authentication pattern stored in authentication signal storage.
3 more elements
A near-field communication (NFC) control system, comprising:
- at least one NFC tag that emits a radio frequency (RF) signal;
- a device or product including a lock capable of assuming a locked state in which the device or product is inaccessible to a user and an unlocked state in which the device or product is accessible to a user;
- at least one antenna responsive to the RF signal emitted by each said at least one NFC tag;
- a radio frequency (RF) signal processor operatively connected to the at least one antenna and configured to measure strength of an RF signal received by each said at least one antenna from said at least one NFC tag and convert the RF signal into digital data representative of the measured strength;
- an NFC controller operatively connected to the RF signal processor and configured to generate a response signal based on digital data generated by the RF signal processor;
- an authentication signal processor operatively connected to the RF signal processor, configured to generate data of an authentication pattern representative of relative motion between each said at least one NFC tag and the at least one antenna, and operative to generate an authorization signal;
- an authentication signal storage configured to store data of an authentication pattern;
- and
- a system controller operatively connected to the authentication signal processor to generate a lock control signal when the authorization signal is generated by the authentication signal processor, and
- wherein the authentication signal processor is operatively connected to the authentication signal storage such that the data of the authentication pattern stored in the authentication signal storage is accessible by the authentication signal processor,
- the authentication signal processor is configured to compare the data of an authentication pattern generated by the authentication signal processor with the data of an authentication pattern stored in authentication signal storage and is operative to generate the authorization signal if, at a minimum, the data of the authentication pattern generated by the authentication signal processor corresponds to the data of the authentication pattern stored in authentication signal storage, and
- the lock is electronically controllable and is operatively connected to the system controller so as to change states from one of the locked and unlocked states to the other of the locked and unlocked states when the system controller generates the lock control signal.
9 more elements
Dependencies are inferred from the claim text.