Abstract: The present invention relates to a time-division duplex (TDD) antenna apparatus which can reduce signal loss, and thereby minimize the noise figure (NF) of a system and extend uplink coverage of the system, by separating a transmitter circuit from a receiver circuit of the antenna apparatus, and disposing a low noise amplifier (LNA) of the receiver circuit between a reception antenna and a reception filter of the receiver. A time-division duplex antenna apparatus according to an embodiment of the present invention includes: a transmitter which includes at least one transmission antenna module and transmits a downlink signal through a first path; a receiver which includes at least one reception antenna module and receives an uplink signal through a second path that is separated from the first path without any overlapping portions thereof; and a controller which controls the transmitter and the receiver in a time-division duplex manner.

Abstract: Method of searching a phone book in an information processing apparatus, such as a portable device, may provide intelligent search of information associated with user-selected information. The method includes selecting a desired item of a plurality of item included in a phone book list, searching at least one item associated with the selected item on a database according to a predetermined priority, and displaying both the selected item and the searched associated at least one item. Thus, the information associated with the user-selected information can be intelligently searched, such that a search result optimized for a user may be displayed and unnecessary repetitive search may be reduced.

Abstract: A method of displaying a caller information in a portable device includes setting up an item of the caller information of each caller, and displaying the caller information based on the set item of the caller information of a caller corresponding to a phone number of the caller when the portable device receives an incoming call. Accordingly, caller information desired by the user of the portable device may be displayed, and thus various and personalized caller information may be displayed.

Abstract: A method of displaying a caller information in a portable device includes setting up an item of the caller information of each caller, and displaying the caller information based on the set item of the caller information of a caller corresponding to a phone number of the caller when the portable device receives an incoming call. Accordingly, caller information desired by the user of the portable device may be displayed, and thus various and personalized caller information may be displayed.

Abstract: Method of searching a phone book in an information processing apparatus, such as a portable device, may provide intelligent search of information associated with user-selected information. The method includes selecting a desired item of a plurality of item included in a phone book list, searching at least one item associated with the selected item on a database according to a predetermined priority, and displaying both the selected item and the searched associated at least one item. Thus, the information associated with the user-selected information can be intelligently searched, such that a search result optimized for a user may be displayed and unnecessary repetitive search may be reduced.