Abstract:
A system and a method for transmitting a human body using a single sound source facilitate implementation of the human body transmission system by including a sound generator in one transmitter only. A sound transmission system(30) includes two transmission units directly contacted with the human body. A first transmission unit(10) transmits the mixed signal to the human body by mixing a first high frequency signal with a sound signal. A second transmission unit(20) transmits a second high frequency signal having the same frequency as the first high frequency signal through the human body for restoring the sound signal by attenuating the first high frequency signal through interference around an ear of a user.
Abstract:
An apparatus and a method for providing media advertisement service using a human body communication are provided to maximize advertisement effect by downloading various contents from a medium of advertisement through the human body communication if the user contacts with the advertisement medium. An apparatus for providing a media advertisement service using human body communication comprises a conductive contact part(201) for contact with a human body, a control part(202) configured to detect human body contact of a user with the conductive contact part and acquire contents associated with an advertisement selected by the human body contact of the user, and a human body communication part(203) configured to convert the acquired contents into a signal for human body communication and send the signal to a user terminal via the conductive contact part and a user's body.
Abstract:
An apparatus for transmitting a reference signal to measure human body phase response characteristics in human body communication, a system for measuring human body phase response characteristics using the same, and a method thereof are provided to measure the phase response characteristics of a human body in human body communication where a common ground wire cannot be directly formed. An apparatus for transmitting a reference signal to measure human body phase response characteristics in human body communication comprises a signal generator(41), a signal distributor(42), a transmitting electrode(43), a frequency convertor(44), and a wireless antenna(45). The signal generator(41) generates a reference signal to measure the phase response characteristics of a human body. The signal distributor(42) distributes the reference signal to the transmitting electrode(43) and the frequency convertor(44). The transmitting electrode(43) supplies the reference signal, distributed from the signal distributor(42), to the human body. The frequency converter(44) converts the frequency of the reference signal, distributed from the signal distributor(42), into another frequency which is different from the frequency of the reference signal supplied to the human body through the transmitting electrode(43). The wireless antenna(45) transmits the frequency-converted reference signal to the air by wireless.
Abstract:
인체통신을 이용하여 능동적이고 효과적으로 범죄를 예방할 수 있는 인체 통신을 이용한 범죄 예방 시스템 및 인체 통신을 이용한 범죄 예방 방법이 개시된다. 인체 통신을 이용한 범죄 예방 시스템은, 감시 대상자에게 부착되어 일반인과의 신체 접촉을 감지하고 신체 접촉이 감지되는 경우 인체통신을 통하여 감시 대상자의 감시 정보를 제공하는 감시 장치 및 일반인에게 부착되고 인체통신을 통하여 감시 정보를 제공받고 감시 정보를 미리 설정된 목적지로 전송하는 수신 장치를 포함한다. 따라서, 감시 대상자의 범죄 행위를 사전에 방지할 수 있고, 범죄 행위가 시도되는 경우 범죄 행위의 피해자가 될 수 있는 일반인이 보다 능동적으로 대응할 수 있다.
Abstract:
Disclosed are a wearable wireless power transmission device and a wireless power transmission method using the same for wirelessly supplying power to a portable mobile device when a user cannot receive the power in the places for outdoor activities like camping, climbing and bicycle hiking, etc. More particularly, the present invention relates to a wearable wireless power transmission device and a wireless power transmission method using the same, capable of producing power by using a generation means based on a fiber type solar cell which is realized to be mounted in the clothing the user wears or the bags the user carries, etc. or a generation means based on a fiber type dielectric elastomer and wirelessly transmitting the power stored in a battery to a portable mobile device in the clothing or the bags. [Reference numerals] (110) Wearable energy harvesting unit; (120) Wearable power charging unit; (130) Wearable battery unit; (140) Wearable power transmission processing unit; (150) Fibrous first coil unit; (160) Wearable status display unit
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