Abstract:
PURPOSE: A shopping information supplying apparatus for a mobile device is provided to supply necessary information for purchasing product included in a product list through a mobile device. CONSTITUTION: A data input unit(110) inputs location information of a mobile device and a product list from the mobile device. A store searcher(120) searches for an adjacent store within the reference distance. A data transmitter(130) transmits the product list to a server. A shopping information calculator(140) calculates an expectation shopping cost corresponding to the shop list.
Abstract:
PURPOSE: A location and reception angle estimation apparatus of a light receiver and method thereof are provided to estimate the location and reception angle of a light receiver by measuring light emitted from a visible light emission apparatus. CONSTITUTION: A candidate position computation unit(505) computes candidate locations of a light receiver using one of the measured reception strengths. An analysis unit(507) predicts the reception strengths of visible light according to the first reception angle variation of the light receiver in the candidate locations. The analysis unit analyzes the first variation estimation of the predicted reception strengths. An estimation unit(509) measures a second reception angle and the location of the light receiver using the second variation estimation of the measured reception strengths and the first variation estimation of the candidate locations. [Reference numerals] (102) Light receiver; (501) Estimated information request unit; (503) Reception strength reception unit; (505) Candidate location calculation unit; (507) Analysis unit; (509) Estimation unit; (510) Estimation reception angle transmission unit; (511) Linear distance calculation unit; (513) Candidate location coordinate calculation unit; (515) Direction recognition unit; (521) Reception strength prediction unit; (523) Trend curve creation unit; (531) Trend curve selection unit; (533) Light receiver location estimation unit; (535) Light receiver reception angle estimation unit; (AA) Light receiver location/ reception angle estimation apparatus
Abstract:
이동 단말기에 구비된 광 수신기의 위치/수신각도 추정장치 및 방법과 이를 이용한 광 송신기가 개시된다. 개시된 광 수신기의 위치/수신각도 추정장치는 가시광 방사장치에서 방사된 가시광에 대하여 기 설정된 측정주기에 따라 광 수신기에서 측정된 가시광의 수신세기들을 상기 광 수신기로부터 수신하는 수신세기 수신부; 상기 측정된 수신세기들 중 어느 하나의 수신세기를 이용하여 상기 광 수신기의 후보위치들을 산출하는 후보위치 산출부; 상기 후보위치들 각각에서의 상기 광 수신기의 수신각도 변화에 따른 가시광의 수신세기들을 예측하고, 상기 예측된 수신세기들의 제1 변화추이를 분석하는 분석부; 및 상기 후보위치들 각각에서의 제1 변화추이 및 상기 측정된 수신세기들의 제2 변화추이를 이용하여 상기 광 수신기의 위치 및 상기 위치에서의 상기 광 수신기의 수신각도를 추정하는 추정부를 포함하는 것을 특징으로 한다. 본 발명에 따르면, 광 수신기의 위치 및 수신각도를 추정할 수 있으며 위치 및 수신각도 정보를 이용하여 가시광 무선 통신 시스템의 성능을 향상시킬 수 있는 장점이 있다.
Abstract:
A method for performing functions through character inputting in a portable terminal is provided to be capable of carrying out menu selection of the terminal through character inputting actions, thus a user does not have to search complex functions of an up-to-date portable terminal through menus, and reducing the waste of a time. A character selected by a user is inputted(S200,S210). The inputted character is compared with a prestored matching table(S220). Function lists searched according to the comparison are displayed(S230). One of the function lists is selected(S240,S250). The selected function is carried out. If a displayed function is not selected while the character is inputted, a character is additionally received, and one of SMS(Short Message Service) transmission, schedule inputting, and desktop word inputting functions is performed from the displayed function.