Back to results
US 2011/0237215 A1Published application
Receiver circuit, electronic instrument, and signal processing method
AssigneeSeiko Epson Corporation
InventorMakoto MURAKAMI
Life of this patent
Estimating the term…
Abstract
In a portable phone, a signal received by a GPS antenna passes through a SAW filter and is amplified by an LNA. An addition section adds a cancellation signal generated by a cancellation signal generation section to the amplified signal to cancel noise superimposed on the received signal.
Claims6
A receiver circuit comprising:
- a cancellation signal generation section that generates a cancellation signal, the cancellation signal canceling a signal generated by an electronic circuit disposed near a reception section that receives a radio signal;
- an intermediate frequency conversion section that converts a received signal received by the reception section into an intermediate-frequency signal;
- and
- an addition section that adds the cancellation signal generated by the cancellation signal generation section to the intermediate-frequency signal output from the intermediate frequency conversion section.
1 more element
A signal processing method comprising:
- generating a cancellation signal, the cancellation signal canceling a signal generated by an electronic circuit disposed near a reception section that receives a radio signal;
- converting a received signal received by the reception section into an intermediate-frequency signal;
- and
- adding the cancellation signal to the intermediate-frequency signal.
1 more element
Dependencies are inferred from the claim text.