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US 9,544,025 B2Granted
Electronic device with a radiofrequency function
AssigneeSTMicroelectronics (Rousset) SAS
InventorsFrançois Tailliet, Marc Battista
Life of this patent
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Abstract
An electronic device includes at least one processing circuit connected through at least one terminal at a first reference voltage. At least one radio frequency communication circuit is connected at least to receive the reference voltage. At least one first pad is intended to be taken to a second reference voltage of at least one electronic circuit external to the device. At least one first resistive impedance is coupled between the terminal and the first pad.
Claims20
An electronic device, comprising:
- at least one processing circuit connected to a reference voltage terminal at a first reference voltage;
- at least one radio frequency communication circuit connected at least to said reference voltage terminal;
- at least one first pad intended to be taken to a second reference voltage of at least one electronic circuit external to the electronic device;
- and
- at least one first resistive impedance between said reference voltage terminal and said first pad.
2 more elements
An electronic device, comprising:
- digital processing circuitry including a first reference voltage node and a first supply voltage node;
- communication circuitry including first and second communications nodes, the communications circuitry coupled to the digital processing circuitry and configured to provide a first reference voltage on the first reference voltage node and to provide a supply voltage on the first supply voltage node;
- a plurality of external coupling nodes, the plurality of external coupling nodes including a second reference voltage node configured to be coupled to receive a second reference voltage from external electronic circuitry coupled to the electronic device;
- and
- a first resistive impedance coupled between the first and second reference voltage nodes.
2 more elements
A method, comprising:
- generating electrical signals across a pair of communications nodes responsive to received electromagnetic signals;
- generating electrical power across a first reference voltage node and a first supply voltage node responsive to the electrical signals across the pair of communications nodes;
- extracting information from the electrical signals across the pair of communications nodes;
- receiving electrical signals on a plurality of external coupling nodes, the plurality of external coupling nodes including a second reference voltage node;
- and
- coupling the second reference voltage node to the first reference voltage node through a first resistive element.
3 more elements
Dependencies are inferred from the claim text.