Abstract:
본 발명의 다수의 무선 모듈을 구비하여 상황에 따라 적합한 무선 모듈을 선택하며 무선 통신을 수행함으로써 디스플레이 유닛이 본체에서 분리된 상태에서도 최적의 영상을 제공할 수 있는 단말기 및 그의 무선 통신 방법에 관한 것이다. 이를 위해 본 발명에 따른 단말기는 외부 입력에 대응하여 영상 데이터를 생성하여 전송하는 본체, 본체로부터 착탈 가능하며, 본체로부터 영상 데이터를 수신하여 영상 데이터에 대응하는 영상을 표시하는 디스플레이 유닛, 및 본체와 디스플레이 유닛에 각각 구비되어 영상 데이터의 전송률을 토대로 무선 통신 주파수 대역을 전환하며 영상 데이터를 디스플레이 유닛으로 전송하는 무선 통신부를 포함하는 것을 특징으로 한다.
Abstract:
PURPOSE: A wired or wireless charging device and a display system which has the same are provided to enable to use wireless charging or wired charging according to the selection of a user, as performing the function of the original display device. CONSTITUTION: A switch(111) is comprised in one plane of a support part supporting a display part, and selects a number of operation modes. A wireless charging pad(121) is comprised in one side of the upper plane of the support part by being connected to the switch, and transmits wireless power for wireless charging of a wireless charging receiver according to the operation mode. A wired charging terminal(131) is connected to the switch, and is comprised in one side of the support part for wired charging according to the operation mode. Light emitting parts(141,142) are connected to the switch, and are able to check the state of wired charging or wireless charging according to the operation mode. A display window(150) is connected to the switch and is comprised in one side of the upper plane of the support part, and is able to display the operation and the function of the operation of the wireless charging pad or the wired charging terminal according to the operation mode.
Abstract:
PURPOSE: A digital signal converter and a digital signal conversion method are provided to offer a signal transmission and reception method according to various interfaces by controlling encryption, a power supply state, and the standard of a digital signal. CONSTITUTION: A signal reception unit(210) analyzes a digital input signal received according to a first type. A signal output unit(230) transmits a digital output signal according to the first type and a second type. A control unit(220) converts the digital input signal received according to the first type into the digital output signal transmitted according to the second type. The control unit controls one or more power sources of the digital input signal or the digital output signal according to the power supply state of the first and the second type. [Reference numerals] (122) Data processing unit; (124) Amplification unit; (126) Light source; (130) Monitor, PC, mobile; (210) Signal reception unit; (222) Signal processing unit; (224) Encryption unit; (226) Power processing unit; (230) Signal output unit
Abstract:
차동연산증폭기 및 스위치드 캐패시터 회로로 구현된 상기 차동연산증폭기의 서브 피드백 회로를 포함하는 적어도 하나의 적분기 회로를 포함하는 스위치드 캐패시터 공진기가 개시된다. 상기 스위치드 캐패시터 공진기의 메인 입출력단을 서로 연결하는 메인 피드백 회로는 스위치드 캐패시터 회로로 구현될 수 있다. 상기 메인 피드백 회로와 상기 적분기 회로 중 하나에 포함된 서브 피드백 회로는 서로 연결될 수 있으며, 상기 메인 피드백 회로에 포함된 캐패시터가 상기 적분기 회로의 차동연산증폭기의 입출력단 사이에 연결된 적분 캐패시터로 적용될 수 있다. 이를 통해 적분기 회로의 안정화 시정수를 감소시켜 동작 속도를 향상시킬 수 있다. 시그마-델타, 스위치드 캐패시터(switched capacitor), 연산증폭기, 피드백, 공진기, 적분기, 안정화 시정수
Abstract:
PURPOSE: A crystal oscillator is provided to reduce total size without reducing a size of an IC by mounting the IC within a cavity including external walls and a recesses and by filling the cavity with a molding agent. CONSTITUTION: A crystal oscillator includes a crystal blank and an IC. The crystal blank is mounted into a crystal blank assembly body. A plurality of ceramic layers(21) are laminated on a chip assembly body in order to form a cavity. The IC is mounted into the cavity of the chip assembly. A plurality of external walls and a recesses are formed at the cavity of the chip assembly body. A plurality of opening parts are formed at both ends of the recesses. The recesses is filled with a molding agent.
Abstract:
PURPOSE: A multiple-output crystal oscillator is provided to perform a multiple-output function by installing an additional circuit at an existing single-output crystal oscillator. CONSTITUTION: A multiple-output crystal oscillator includes a crystal oscillator(1), the first IC chip(5), the second IC chip(2), and a substrate structure. The first IC chip(5) includes an oscillation circuit and a frequency control circuit. The oscillation circuit oscillates a resonant signal of the crystal oscillator(1). The second IC chip(2) includes an adjustment output part in order to adjust the oscillation signal of the oscillation circuit of the first IC chip(5) to one or more waveform. The first and the second IC chips(5,2) are mounted on the substrate structure. An output terminal is formed at a lower side of the substrate structure. The output terminal of the substrate structure includes a basic output terminal for outputting the oscillation signal of the first IC chip(5) and an additional output terminal for outputting the oscillation signal having the adjusted waveform of the second IC chip(2).
Abstract:
본발명의일 실시예는듀얼밴드필터및 이의동작방법에관한것으로서, 제1대역신호및 제2대역신호중 하나를도통시키고다른하나를차단시키는다이플렉서(diplexer); 제1 대역신호를밴드패스(band-pass) 필터링하는밴드패스필터; 제1 대역신호가송신될때 제1 대역신호를차동신호에서단일(single) 신호로변환하고, 제1 대역신호가수신될때 제1 대역신호를단일신호에서차동신호로변환하는발룬(balun); 및제1 대역신호가수신될때 발룬에직류전압을공급하는직류전압공급포트; 를포함함으로써, 듀얼밴드의통신을지원함과동시에신호의송수신시에너지효율을높일수 있다.