Samsung Electronics Co., Ltd.

Kyung Jung Kim

Jeong Hun Kim

Kwang Min Lee

Jae Min Seo

Jae Sun Park

Seong Jun Song

Won Gon Park

Yong Nam Kim

An electronic device is provided which includes an input/output interface configured to provide a plurality of number keys and function keys, a buffer configured to store a value of a key selected through the input/output interface, and a controller configured to determine, when a specific condition occurs through the input/output interface, whether the specific condition is associated with a calculation function or a telephone function and perform a telephone function or a calculation function using the stored key value based on a result of the determination. Furthermore, a delete key of the plurality of number keys and the function keys is applied in common to the calculation function and the telephone function.

Apparatus for providing integrated functions of dial and calculator and method thereof

An electronic device and a bias control method thereof are provided. The electronic device includes a channel quality measuring module configured to measure a channel quality of a received signal, a bias offset determining module configured to determine a bias offset based on the measured channel quality, a bias offset applying module configured to modify a bias by applying the determined bias offset to a specified bias value, and a power amplifier configured to amplify transmission power according to the modified bias.

Apparatus and method for controlling power amplifier bias

A built-in Printed Circuit Board (PCB) antenna of a mobile terminal is erected to guarantee a sufficient distance from a human body. The built-in PCB antenna includes a main PCB having a power feeding line and a first antenna pattern having a power feeding antenna line having an end electrically connected to the power feeding line, through-holes formed at an end of the main PCB and having a conduction hole electrically connected to the first antenna pattern, an erected PCB fixed on the main PCB orthogonally and having a second antenna pattern formed thereon, and protrusions formed at a lateral side of the erected PCB and having a conduction protrusion, inserted into the conduction hole, electrically connected to an end of the second antenna pattern. The built-in PCB antenna may reduce deterioration of radiation performance caused by a body of a user.

Built-in printed circuit board antenna of mobile terminal

Growing community of inventors

Gyeonggi-do, South Korea

Kyung Jung Kim