Abstract: Provided is a capacitive touch sensor which includes a flat panel display for displaying an image and a touch sensor panel positioned on the flat panel display or embedded in the flat panel display. The capacitive touch sensor may include: a driving clock generator configured to generate a plurality of time-periodic output signals by using a gate driver signal of the flat panel display, and apply the generated time-periodic output signals to the touch sensor panel and a receiver circuit unit; a driver configured to generate a driving signal of the touch sensor panel using a part of the output signals of the driving clock generator; and the receiver circuit unit configured to process noise contained in a signal received from the touch sensor panel, using the output signals.

Abstract: Provided is a capacitive touch sensor which includes a flat panel display for displaying an image and a touch sensor panel positioned on the flat panel display or embedded in the flat panel display. The capacitive touch sensor may include: a driving clock generator configured to generate time-periodic output signals with respect to a plurality of times, and apply the generated time-periodic output signals to the touch sensor panel and a receiver circuit unit; a driver configured to generate a driving signal of the touch sensor panel using a part of the output signals of the driving clock generator; and the receiver circuit unit configured to process noise contained in a signal received from the touch sensor panel, using the output signals.

Abstract: When a time difference is amplified by a time difference amplifier, slew rates of internal output voltages are changed according to a phase combination of digital input signals so that a time gain is determined by a ratio between the slew rates and the slew rates can be controlled from an outside. After a voltage is charged to the level of a power supply voltage in first and second charging capacitors, the charged voltage of the first charging capacitor is decreased with a first slew rate when a first digital input signal transitions, and both charged voltages of the first and second charging capacitors are decreased with a second slew rate when a second digital input signal transitions so that both first and second digital input signals are changed from initial phases, while being compared with a reference voltage to generate first and second digital output signals.

Abstract: When a time difference is amplified by a time difference amplifier, slew rates of internal output voltages are changed according to a phase combination of digital input signals so that a time gain is determined by a ratio between the slew rates and the slew rates can be controlled from an outside. After a voltage is charged to the level of a power supply voltage in first and second charging capacitors, the charged voltage of the first charging capacitor is decreased with a first slew rate when a first digital input signal transitions, and both charged voltages of the first and second charging capacitors are decreased with a second slew rate when a second digital input signal transitions so that both first and second digital input signals are changed from initial phases, while being compared with a reference voltage to generate first and second digital output signals.

Abstract: Disclosed is an apparatus and method for upgrading software in a portable terminal. The method includes determining if additional installation files for the software upgrade are downloaded, storing the additional installation file in an additional installation region of a memory without discrimination between software modules, and storing the matching information of the additional installation files and the software modules.