Abstract:
A method of displaying information in a mobile terminal having a touch screen is provided. The method includes determining whether a touch input is generated by a touch screen, determining whether the touch area moves, calculating a movement direction of the touch area by extracting a value of the touch area movement, determining a current mode according to the calculated movement direction of the touch area, executing a function of the current mode corresponding to the extracted value of the touch area movement, and displaying, while executing the function of the current mode, at least one of a displacement value generated by executing the function of the current mode and a current mode icon indicating the current mode. Accordingly, when displaying information according to a touch input, changes of information may be displayed distinctively, and thereby user convenience may be improved.
Abstract:
A position measurement device includes a light source, a reflector coupled to a test object, a light detector between the light source and reflector, and a controller to measure a position of the test object based on an interference pattern generated by a reference beam and a measurement beam output from the light detector. The controller also controls a temperature of the light detector by generating signals for a heat exchanger having a Peltier region coupled to the light detector. The signals including a first signal to cause the heat exchanger to remove heat from the light receiver and a second signal to cause the heat exchanger to apply heat to the light receiver.