Abstract: A method for operating an electronic device is provided. The method includes setting a virtual physical field in at least one region in a screen, mapping a UI object to be displayed in the at least one region to at least one virtual physical object in the physical field, assigning a physical attribute to the at least one virtual physical object, determining a state of the at least one physical object on the basis of the physical field and the physical attribute of the UI object by using a physical engine, the state including at least one of a location, a form, a shape, and a color, and displaying the UI object according to the state of the at least one virtual physical object.

Abstract: Disclosed is a frequency error detector and combiner at a receiving end of a mobile communication system. The frequency error detector and combiner using a diversity operation at a reception end of a mobile communication system includes: a plurality of fingers respectively having a diversity combiner for diversity-combining reference symbols used for a frequency error detection, and a frequency error detector for combining output signals of the diversity combiner to generate a frequency offset value; and a frequency error combiner for performing a multipath diversity combination on output signals of the frequency error detector.

Abstract: Disclosed is an apparatus and method for receiving a channel signal using a STTD (Space Time Transmit Diversity) scheme in a CDMA communication system. In the CDMA communication system a transmitter with first and second antennas STTD (Space Time Transmit Diversity)-encodes a channel signal having PC (Power Control) information of a receiver and transmits a STTD-encoded result over first and second antennas, a first antenna signal processor receives a signal transmitted from the transmitter, and processes the received signal as a signal transmitted from the first antenna using a first pattern, a second antenna signal processor processes the received signal as a signal transmitted from the second antenna using a second pattern orthogonal to the first pattern, and an adder combines an output signal of the first and second antenna signal processor, and generates the PC information, resulting in no delay time while detecting such PC information.

Abstract: Disclosed is a device for digital rights management on a mobile terminal including a DRM message transmitter for selecting digital content to be sent to an intended recipient, generating a rights object for the selected digital content and sending the digital content with the generated rights object to the recipient; and a DRM message receiver for receiving digital content with a corresponding rights object and interpreting the rights object to use the digital content according to the interpreted rights object. Unlike content services offered by content providers which subscribers pay to receive and use, the digital rights management according to the present invention enables individual users of mobile terminals to copyright and protect their own digital multimedia content.

Abstract: A digital signal receiver and a method for receiving a digital signal. The receiver includes an equalizing unit for compensating for an amplitude distortion of a received signal, an original signal decision unit for deciding an original signal from a signal which is compensated for the amplitude distortion, a carrier recovering and phase lock detecting unit for detecting a phase error between an input of the original signal decision unit and the decided original signal, and outputting a phase lock signal, a re-rotating unit for restoring the signal from the original signal decision unit to its original state and outputting a restored signal to the equalizer, and a coefficients updating unit for receiving the phase lock signal from the carrier recovering and phase lock detecting unit and the restored signal from the re-rotator unit, generating an error for updating the coefficients of the equalizer, and updating the coefficients of the equalizer.

Abstract: A frequency error detector and combiner for use in a mobile communication system. The frequency error detector and combiner for use in a receiver of a mobile communication system which includes different frame formats according to slot formats, the receiver having at least two fingers including a frequency error detector for detecting a frequency error using a phase reference symbol of a predetermined channel received from a transmitter and a reference frequency error generator for generating a reference frequency error at predetermined reference time intervals using the detected frequency error; a level controller for controlling the gain of a frequency error generated from the reference frequency error generator; and a frequency error combiner for combining the gain controlled frequency error generated from each finger with a predetermined value.

Abstract: Disclosed is a frequency error detector and combiner at a receiving end of a mobile communication system. The frequency error detector and combiner using a diversity operation at a reception end of a mobile communication system includes: a plurality of fingers respectively having a diversity combiner for diversity-combining reference symbols used for a frequency error detection, and a frequency error detector for combining output signals of the diversity combiner to generate a frequency offset value; and a frequency error combiner for performing a multipath diversity combination on output signals of the frequency error detector.

Abstract: Disclosed is an apparatus and method for receiving a channel signal using a STTD (Space Time Transmit Diversity) scheme in a CDMA communication system. In the CDMA communication system a transmitter with first and second antennas STTD (Space Time Transmit Diversity)-encodes a channel signal having PC (Power Control) information of a receiver and transmits a STTD-encoded result over first and second antennas, a first antenna signal processor receives a signal transmitted from the transmitter, and processes the received signal as a signal transmitted from the first antenna using a first pattern, a second antenna signal processor processes the received signal as a signal transmitted from the second antenna using a second pattern orthogonal to the first pattern, and an adder combines an output signal of the first and second antenna signal processor, and generates the PC information, resulting in no delay time while detecting such PC information.