Passive Wireless Receiver
AssigneePassif Semiconductor Corp.
InventorsBenjamin Walter Cook, Axel Dominique Berny
Life of this patent
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Abstract
A passive wireless receiver to receive an input signal and passively process the input signal to generate an output signal. An embodiment of the receiver includes an input circuit, a dynamic switching circuit, and a switch signal generator. The input circuit is configured to receive an input signal and produce a first output signal. The input circuit includes a passive network configured to condition the input signal. The dynamic switching circuit is configured to perform frequency translation on the first output signal. The switch signal generator is configured to drive the dynamic switching circuit to activate and deactivate the dynamic switching circuit at a sampling frequency that is controlled and stabilized by a frequency control circuit.
Claims38
A wireless receiver system that performs passive signal processing and delivers an output whose power is substantially composed of power received in an input signal, the wireless receiver system comprising:
- an input circuit configured to receive the input signal and produce a first output signal, the input circuit including a passive network configured to condition the input signal;
- a dynamic switching circuit configured to perform frequency translation on the first output signal;
- and
- a switch signal generator configured to drive the dynamic switching circuit to activate and deactivate the dynamic switching circuit at a sampling frequency that is controlled and stabilized by a frequency control circuit.
A wireless receiver comprising:
- an input circuit configured to receive an input signal and produce a first output signal, the input circuit including a passive network configured to condition the input signal, the passive network including a resonant circuit chosen from the group including:
- networks using inductors, capacitors and resistors that may be on-chip, off-chip, or resulting from an interface between the resonant circuit and its external environment, an on-chip or off-chip electromechanical component, an electromagnetic resonator, an electromagnetic radiator, a tuned antenna, and an on-chip or off-chip transmission line network;
- a dynamic switching circuit configured to perform frequency translation on the first output signal;
- and
- a switch signal generator configured to drive the dynamic switching circuit to activate and deactivate the dynamic switching circuit at a sampling frequency that is controlled and stabilized by a frequency control circuit.
A method comprising:
- receiving a wireless signal;
- processing the wireless signal using a passive network, wherein processing the wireless signal includes conditioning the wireless signal;
- generating a first output signal based on the conditioned wireless signal;
- generating a plurality of control signals that control a dynamic switching circuit at a sampling frequency;
- stabilizing the plurality of control signals;
- processing the first output signal to perform frequency translation on the first output signal and generate a second output signal;
- and
- applying the plurality of control signals to the dynamic switching circuit to activate and deactivate the dynamic switching circuit.
Dependencies are inferred from the claim text.