US 12,450,446 B2Granted

Power signal interaction with object including RFID tag

AssigneeVtech Electronics, Ltd.

InventorDicky Fai Wong Poon

Life of this patent

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Abstract

A method conducted using a system having a first object with a first data processor, an RFID tag reader, and a first output device electrically coupled to the first data processor, and a second object with a second data processor, an RFID tag, and a second output device electrically coupled to the second data processor includes: transmitting, by the RFID tag reader to the RFID tag, a power signal with embedded input data; receiving, by the RFID tag, the power signal with the embedded input data. The embedded input data is extracted from the power signal and provided to the second data processor, and causes the second data processor to initiate an action. Responsive to receiving the power signal with the embedded input data, transmitting, by the RFID tag, response data to the RFID tag reader, wherein the first data processor processes the response data.

Claims22

Dependent claims

A method conducted using a system comprising a first object comprising a first data processor, a radio frequency identification (RFID) tag reader and a first output device electrically coupled to the first data processor, and a second object comprising a second data processor, and a battery, an RFID tag, and a second output device electrically coupled to the second data processor, the method comprising:

transmitting, by the RFID tag reader in the first object to the RFID tag in the second object, a power signal with embedded input data, the input data embedded into the power signal by modulating the power signal between high and low levels at different time intervals;
receiving, by the RFID tag in the second object, the power signal with the embedded input data, wherein the embedded input data is extracted from the power signal and is provided to the second data processor, and causes the second data processor to initiate an action in response to a first audio or visual output from the first output device in the first object, the action being a second audio or visual output from the second output device that is responsive to the first audio or visual output;
and
responsive to receiving the power signal with the embedded input data, transmitting, by the RFID tag, response data to the RFID tag reader in the first object, wherein the first data processor processes the response data.

1 more element

A system comprising:

a first object comprising:
a radio frequency identification (RFID) tag reader;
a first output device;
and
a first data processor electrically coupled to the first output device and the RFID tag reader;
wherein the first object is configured to transmit an RF power signal comprising embedded input data, the input data embedded into the RF power signal by modulating the RF power signal between high and low levels at different time intervals;
and
a second object comprising:
an RFID tag;
a battery;
a second output device;
and
a second data processor electrically coupled to the battery, the second output device and the RFID tag,
wherein the second object is configured to receive, via the RFID tag, the RF power signal and perform an action specified by the embedded input data, wherein the embedded input data comprises a coded command to perform the action in response to a first audio or visual output from the first output device in the first object, the action being a second audio or visual output from the second output device that is responsive to the first audio or visual output, and responsive to receiving the RF power signal, transmit, by the RFID tag, response data to the RFID tag reader, wherein the first data processor processes the response data, and wherein the second data processor is configured to decode the coded command from the modulated RF power signal and responsive to the coded command execute instructions to cause the second object to perform the action.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/364,963Filed 3 Aug 2023
Published: US 2025/0045540 A16 Feb 2025
Granted: 21 Oct 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06K 7/0008
Methods or arrangements for sensing record carriers, e.g. for reading patterns: general problems related to the reading of electronic memory…
G06K 7/10297
Sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves: arrangements for handling protocols designed for…
G06K 7/10366
Sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves: the interrogation device being adapted for…
G06K
Graphical data reading