Samsung Electronics Co., Ltd.

Won Joo Park

Hyung Joo Lee

Mi Jung Park

Yoon Taek Han

Seuk Hwan Choi

Dong Seok Nam

Keun Young Kim

Hyung Min Yook

Yu Ran Kim

Min Suk Jang

A critical dimension measurement system includes a voltage measurement circuit, a control circuit, and a critical dimension measurement circuit. The voltage measurement circuit may measure potentials of mask patterns of a photomask. The control circuit may include an information storage circuit for storing distribution information on the potentials of the mask patterns, measured by the voltage measurement circuit, and information on layout patterns corresponding to the mask patterns of the photomask. The critical dimension measurement circuit may be operated, by the control circuit, in a first measurement mode and a second measurement mode running for a shorter time than the first measurement mode, and measure critical dimensions of the mask patterns.

Critical dimension measurement system and method of measuring critical dimensions using same

A method and apparatus which efficiently inputs characters through a touch screen in a mobile communication terminal is provided. The method, for inputting characters through a touch screen in a mobile communication terminal, includes displaying a virtual keyboard including a plurality of keyboard keys on the touch screen in response to a character input request, inputting an input signal through the touch screen; and inputting a corresponding character, if the input signal is a click signal. If the input signal is a drag signal, the virtual keyboard is moved. Therefore, the character input method and apparatus display a virtual keyboard that is greater than the touch screen and thus reduce the user character input errors.

Method and apparatus for inputting characters in a mobile communication terminal

A mobile terminal and a method of displaying a menu thereof are provided. The method includes displaying a list of upper-level menus in an order on a display screen, displaying a first upper-level menu at an upper end of the display panel, a second upper-level menu that is next to the first upper-level menu in the order at a lower end of the display screen, and lower-level menus of the first upper-level menu in a list between the first upper-level menu and the second upper-level menu in response to selection of the first upper-level menu from the list of upper-level menus, and executing a selected lower-level menu in response to selection of one of the lower-level menus.

Mobile terminal and method of displaying menu thereof

Growing community of inventors

Hwaseong-si, South Korea

Won Joo Park