Method and apparatus for noise canceling

摘要

Aspects of the disclosure can provide a circuit to be used in a device. The circuit includes a first receiver circuit, a second receiver circuit and a processing circuit. The first receiver circuit is configured to receive a first signal from an antenna that captures a combination of a target signal transmitted from another device to the device and an output signal driven by a transmitter in the device. The second receiver circuit is configured to receive a second signal generated based on to the output signal. The processing circuit is configured to cancel from the first signal noise due to the output signal based on the second signal.

主权项

1. A circuit in a device, comprising:
a transceiver circuit, comprising: a first receiver circuit, configured to receive a first signal from an antenna that captures a combination of a target signal transmitted from outside the device and an output signal driven by a transmitter outside the transceiver circuit in the device; a second receiver circuit configured to receive a second signal generated based on the output signal; a processing circuit configured to cancel from the first signal noise due to the output signal based on the second signal; and a controller configured to turn on the second receiver circuit when a received signal strength indication (RSSI) of the first receiver circuit is lower than a threshold.