Duplexer measurement and tuning systems

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12143145
APP PUB NO 20240080063A1
SERIAL NO

17939657

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems and methods combine a test signal with a wanted (downlink or uplink) signal at an input of a duplexer of a communication device, and receive the test signal at an output of the duplexer. The test signal may include a radio frequency signal having less power than the wanted signal to avoid interference, or a digital signal that is added to or extracted from the wanted signal when the wanted signal does not have a radio frequency. A processor of the communication device causes the duplexer to operate in a tuning state (e.g., to transmit signals having a transmission frequency and receive signals having a receive frequency). The measurement system determines a difference or ratio in power between the test signal at the duplexer output and the duplexer input, and adjusts the tuning state based on the difference or ratio (e.g., to decrease or minimize the difference or ratio).

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Patent Owner(s)

Patent OwnerAddress
APPLE INC1 INFINITE LOOP CUPERTINO CA 95014

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dorn, Oliver Georg Erlangen, DE 11 3
Koehler, Dominic Viereth-Trunstadt, DE 9 0
Lenhart, Bjoern Nuremberg, DE 6 0
Pfannenmüller, Christof Erlangen, DE 5 0
Pretl, Harald Schwertberg, AT 45 138
Tanzer, Christian F Perlesreut, DE 3 0
Vazny, Rastislav Sunnyvale, US 62 63
Zuber, Julian W Erlangen, DE 3 0

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