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: A method and apparatus for providing users with electronic book (e-book) content by means of a mobile terminal is provided. The method includes receiving an e-book from a provider server; transmitting a character request message containing identity information of the e-book to the provider server; receiving character information corresponding to the identity information from the provider server; displaying a character according to the character information; and outputting, when a page having a link to an event, the event by means of the character. A user may enjoy various activities such as collecting characters, promoting character level, and uploading character as well as reading e-books.

Abstract: A method and apparatus for providing users with electronic book (e-book) content by means of a mobile terminal is provided. The method includes receiving an e-book from a provider server; transmitting a character request message containing identity information of the e-book to the provider server; receiving character information corresponding to the identity information from the provider server; displaying a character according to the character information; and outputting, when a page having a link to an event, the event by means of the character. A user may enjoy various activities such as collecting characters, promoting character level, and uploading character as well as reading e-books.

Abstract: A method and apparatus for setting the user environment of a car by using a portable terminal are provided. The method includes, when user environment data are received from the car, storing the received user environment data in a storage unit of the portable terminal; and transmitting the stored user environment data to the car when a user environment data transmission event occurs.

Abstract: Disclosed is a low-priced and small-sized magnetic core for an inductor suitable for a high frequency signal and a large-current signal. The magnetic core is modified from a conventional EP type magnetic core. A recess is integrally formed with a peripheral portion of the magnetic core when it is shaped. A bottom portion and the peripheral portion are extended toward an opening portion to an extent of about 70 percentages of a length measured from a center of the center portion to an internal surface of the peripheral portion. The peripheral portion opposite to the opening portion has a uniform thickness. The magnetic core is designed to facilitate its surface mounting onto a PCB.

Abstract: Disclosed is a demodulation apparatus for a digital audio amplifier capable of solving a space, cost and heat generation of the digital audio amplifier. The demodulation apparatus includes a first inductor connected between a positive digital audio signal output terminal and one end of a load, a second inductor connected between a negative digital audio signal output terminal and the other end of the load, and magnetically coupled to the first inductor, a first capacitor connected between the one end of the load and ground and coupled to the first inductor for serving as a low-pass filter, and a second capacitor connected between the other end of the load and ground and connected to the second inductor for serving as a low-pass filter.

Abstract: Disclosed is a demodulation apparatus for a digital audio amplifier capable of solving a space, cost and heat generation of the digital audio amplifier. The demodulation apparatus includes a first inductor connected between a positive digital audio signal output terminal and one end of a load, a second inductor connected between a negative digital audio signal output terminal and the other end of the load, and magnetically coupled to the first inductor, a first capacitor connected between the one end of the load and ground and coupled to the first inductor for serving as a low-pass filter, and a second capacitor connected between the other end of the load and ground and connected to the second inductor for serving as a low-pass filter.

Abstract: Disclosed is a low-priced and small-sized magnetic core for an inductor suitable for a high frequency signal and a large-current signal. The magnetic core is modified from a conventional EP type magnetic core. A recess is integrally formed with a peripheral portion of the magnetic core when it is shaped. A bottom portion and the peripheral portion are extended toward an opening portion to an extent of about 70 percentages of a length measured from a center of the center portion to an internal surface of the peripheral portion. The peripheral portion opposite to the opening portion has a uniform thickness. The magnetic core is designed to facilitate its surface mounting onto a PCB.