Abstract:
정확한 보행 안내 정보를 제공할 수 있고 사용 편의성을 향상시킬 수 있는 인체 통신을 이용한 보행 안내 장치가 개시된다. 보행 안내 장치는 지팡이 등에 설치되어 보행 안내 정보 신호를 획득하고 획득한 보행 안내 정보 신호를 인체 통신이 가능한 신호로 변환한 후 사용자의 신체를 통하여 전송하는 제1 인체 통신 수단과, 제1 인체 통신 수단으로부터 사용자의 신체를 통해 전송된 신호를 수신한 후 수신한 신호를 사용자가 인지 가능한 신호로 변환하여 출력하는 제2 인체 통신 수단을 포함한다. 따라서, 비화성이 높고 안정적이며 정확도가 높은 보행 안내 정보를 제공할 수 있고 사용 편의성을 향상시킬 수 있다.
Abstract:
PURPOSE: An electric power conversion apparatus in an energy harvesting system and a method thereof are provided to obtain maximum power from a number of energy sources, by adjusting load impedance in a connection structure between source terminals selected by using electric characteristics values of each source or between the source terminal and a gathering terminal. CONSTITUTION: A central control unit (300) calculates serial and parallel combination by using an electric characteristics value of each source terminal connected to a plurality of energy sources as an input parameter. A power synthesis unit (100) measures the electric characteristics value of an individual source terminal among the plurality of source terminals and then transfers the electric characteristics value to the central control unit. The power synthesis unit connects each source terminal in serial or parallel combination according to the calculated serial/parallel combination result, and matches impedance between a load terminal and the source terminal connected in serial or parallel. A voltage conversion unit (200) generates a power source voltage by converting a power signal gathered in the power synthesis unit. [Reference numerals] (10) Electricity converter; (100) Power synthesis unit; (11) Source; (12) Load; (200) Voltage conversion unit; (300) Center control unit; (AA) Electricity #1; (BB) Electricity #2; (CC) Electricity #N; (DD) Load #1; (EE) Load #2; (FF) Load #M
Abstract:
PURPOSE: A rotational rehabilitation treatment apparatus using vibration and a method thereof are provided to conduct a rotation movement up to a desired motion point by giving intuitive stimulations using a haptic element. CONSTITUTION: A rotational rehabilitation treatment apparatus (200) using vibration comprises a vibration part (210) which is equipped with multiple haptic elements and which applies different vibrations along with a rehabilitation exercise rotation direction being attached on a human body of a user; and a control part (220) which decides the rehabilitation exercise rotation direction according to a rehabilitation exercise data which is previously set to make the user rotate the human body, which vibrates the haptic element which corresponds to the rotation rehabilitation exercise direction among multiple haptic elements equipped; and which stops the vibration of the haptic element once the rotation to the rehabilitation exercise rotation direction is complete. A rotation rehabilitation treatment method using vibration includes the following steps; a direction decision step which determines the rehabilitation exercise rotation direction according to the rehabilitation exercise data which is set previously to make the user rotate the human body; a vibration step which vibrates the haptic element corresponded to the rotation rehabilitation exercise direction which is set before among multiple haptic elements which give different stimulations being attached on the human body of the user; and a vibration stopping step which stops the vibration of the haptic elements corresponded to the rotation rehabilitation exercise direction once the rotation of the human body is complete toward the rotation rehabilitation exercise direction which is determined. [Reference numerals] (200) Rotational rehabilitation treatment apparatus; (210) Vibration part; (220) Control part; (230) Photographing part; (240) Data comparing part; (250) Data storage part
Abstract:
PURPOSE: A receiver, a transmitter, and a method thereof in a human body communication system are provided to select optimum combination of a reception electrode in case of using two transmission electrodes and a plurality of reception electrodes. CONSTITUTION: An image data generator(110) generates an image frame including image data about an obtained image. A transmission frame generator(1000) generates the image frame into a transfer frame. A transmission electrode(160) is installed to transmit the transmission frame. The transmission electrode includes a plurality of control frames and data frames for selection of transmission electrodes.
Abstract:
PURPOSE: A multiple millimeter wave transmission apparatus and method thereof are provided to transmit millimeter waves by selecting a suitable transmission mode in a physical layer according to adjacent communication environment. CONSTITUTION: A scanner(1) searches adjacent communication environment. A physical layer control unit(2) selects a transmission mode in a physical layer(3) according to the searched adjacent communication environment. The physical layer includes plural transmission modes. The physical layer outputs millimeter waves through an antenna(4) in the transmission mode selected by the physical layer control unit.
Abstract:
PURPOSE: An apparatus for guiding walking using human body communication is provided to exactly guide walking and to improve use convenience. CONSTITUTION: An apparatus for guiding walking using human body communication comprises: a first human body communication unit(100) which acquires a walking guiding information signal, changes the walking guiding information signal into a signal capable of human body communication, and transmits the signal through the body of a user; and a second human body communication unit(200) which receives the signal transmitted through the body of the user, changes the received signal into a signal that is recognized by the user, and outputs the signal.
Abstract:
PURPOSE: A telematics system using human body communication, a portable device having function of telematics using human body communication and a method for providing telematics service using human body communication are provided to perform a telematics service by configuring a communication network using a human body as medium. CONSTITUTION: In a telematics system using human body communication, a portable device having function of telematics using human body communication and a method for providing telematics service using human body communication, a vehicle(100) receives an authentication key from at least one portable device through human body communications using a human body as medium. The vehicle controls the open and close based on the validity of the authentication key received from the vehicle. A controller(110) reads out the stored authentication key when a user body is contacted with the vehicle. A human body communications unit(190) converts the authentication key into a signal to be transmitted through the human body. An electrode(195) transmits the signal from the human body communications unit to the vehicles through the user body.
Abstract:
PURPOSE: An apparatus for frequency selective transmission is provided to reduce the complexity of an analog transmission/reception terminal necessary for the transmission of a pass band. CONSTITUTION: A header generating unit(60) generates a header including the attribute information for transmission data, and a data generating unit(70) transmits digital data through a desirable frequency band. A pilot generating unit(80) generates a pilot which is inserted into a frame for frequency offset compensation. A multiplexer(90) receives the outputs of a preamble generating unit, an SFD/RI generating unit, the header generating unit, the data generating unit and the pilot generating unit, and multiplexes the outputs. A signal electrode(110) transmits the outputs of the multiplexer into a human body.
Abstract:
PURPOSE: Body sound transmitting apparatus and method are provided to minimize the loss of signals by transmitting a carrier wave signal for the demodulation of a sound signal through air. CONSTITUTION: A sound signal transmitting part(110) implements the modulation of a sound signal to be transmitted in order to transmit the modulated sound signal to the vicinity of an ear. A transmitting part(120) transmits a carrier wave signal to the vicinity of the ear through air in order to demodulate the modulated sound signal. The sound signal transmitting part includes a sound signal generator(111) and an amplitude modulator(112).
Abstract:
PURPOSE: A digital transmission device which selectively selects frequency is provided to select symbol rate which differs according to varying application and one among high performance mode, general mode, and low power mode according to the use clock and selects one among low speed spectrum methods of excellent transmission performance in each mode, thereby providing high quality. CONSTITUTION: A preamble transmission processor(211) generate preamble for frame synchronization. A header transmission processor(213,214) comprises a header including data property information. A data transmission processor(215,216,217) diffuses the transmission data to frequency selective spectrum code after serial-parallel converting about transmission data. A multiplexer(218) performs multiplex of each diffuse preamble, header and data.