Htc Corporation

Chun-Wei Hsu

Chien-Ting Ho

Wan-Ming Chen

Chih-Chin Su

Chung-Chi Lai

Wei-Chung Yang

Zih-Ci Lin

Ying-Chung Chen

Method for performing dynamic impedance matching and communication apparatus thereof are provided. With respect to an operating band of an impedance matching circuit of a communication device, a first number of times of tuning are performed on a first element of an impedance matching circuit, and a second number of times of tuning are performed on a second element of the impedance matching circuit, wherein the first number is different from the second number.

Method for performing dynamic impedance matching and a communication apparatus thereof

A method for searching wireless signal, a mobile electronic device using the same, and a non-transitory storage medium are provided. In the method, after a motion sensor of the mobile electronic device is activated, a motion status of the mobile electronic device is determined by using the motion sensor. Then, a frequency of the mobile electronic device performing a wireless signal searching procedure is adjusted according to the motion status, so as to reduce power wasted due to the unnecessary wireless signal searching procedure being performed.

Method for searching wireless signal, mobile electronic device using the same, and non-transitory storage medium

A mobile communication device and an impedance matching method thereof are provided. The mobile communication device includes an antenna, a power amplifier, a tunable matching circuit, a power detection circuit and a controller. The tunable matching circuit determines an output impedance encountered by a radio frequency (RF) signal transmitted by the power amplifier to the antenna when the RF signal enters the tunable matching circuit. The power detection circuit detects a forward power of the RF signal entering the antenna and a reflected power of the antenna. The controller tunes the tunable matching circuit according to a frequency range currently used by the mobile communication device, the forward power and the reflected power to steer the output impedance toward a corresponding load-pull impedance that the power amplifier has in the frequency range.

Mobile communication device and impedance matching method thereof

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Taoyuan, Taiwan

Chun-Wei Hsu