Samsung Electronics Co., Ltd.

Han-Jun Yi

Hoon Moo Choi

Sung-min Lee

Dong-Jun Lee

Jung-Min Park

Yong-Youn Kim

Hyang-Bok Lee

Seong-Kyu Maeng

Ki-Yong Shin

Jong-Wook Choi

Seung-In Kang

An electronic device is provided, the electronic device including a communication circuit, a battery, and a processor, and the processor is configured to: obtain a strength of a communication signal received by the communication circuit; determine a magnitude of power for charging the battery based on the strength of the communication signal; and charge the battery with power of the determined magnitude.

Electronic device for charging battery and operating method thereof

According to various embodiments, an electronic device comprises: a housing including a first surface, a second surface facing in the opposite direction of the first surface, and side surfaces that surround at least a part of a space between the first surface and the second surface; a first sensor and a second sensor which are disposed in the housing or exposed through at least one surface; a communication circuit disposed in the housing; an antenna radiator electrically connected with the communication circuit; and a control circuit electrically connected with at least one of the first and second sensors, and the communication circuit, wherein the control circuit is configured to: transmit or receive, to or from an external device, a first signal output from the communication circuit, using the antenna radiator; detect, using the first sensor, whether an external object has approached within a predetermined distance at least a part of the antenna radiator to generate a second signal; detect, using the second sensor, an orientation of the electronic device to generate a third signal; and decrease the strength of the first signal, based on at least a part of the generated second signal and third signal.

Electronic device and power back off control method thereof

A transmission apparatus with reduced current consumption for a mobile terminal is disclosed. The transmission apparatus includes an automatic gain control (AGC) amplifier for AGC-amplifying an input baseband signal; an attenuator for attenuating an output signal of the AGC amplifier; a multiplier for multiplying an output signal of the attenuator by a carrier frequency signal to convert the signal into a radio frequency (RF) signal; a first filter for filtering an output signal of the multiplier; a drive amplifier for amplifying an output signal of the first filter; a second filter for filtering an output signal of the drive amplifier; a power amplifier for amplifying an output signal of the second filter; and an antenna. When output power of the mobile terminal is lower than predetermined maximum output power of the AGC amplifier, the output signal of the AGC amplifier is transmitted through the multiplier, the first filter and the antenna.

Transmission apparatus and method for a mobile communication terminal

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Seongnam-si, South Korea

Han-Jun Yi