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    • 7. 发明授权
    • Wireless remote controller using time division protocol and satellite radio receiver including the same
    • 使用时分协议的无线遥控器和包含相同的卫星无线电接收机
    • US07394781B2
    • 2008-07-01
    • US10979832
    • 2004-11-03
    • Hyuk-Joon Kwon
    • Hyuk-Joon Kwon
    • H04B7/212H04B1/06H04B7/185H04B1/034H04H20/00
    • H03J1/0025
    • Disclosed is a wireless remote controller using a time division protocol. A satellite radio equipped with the wireless remote controller is also disclosed which performs an audio processing operation for time division multiplexing (TDM) and orthogonal frequency division multiplexing (OFDM) signals respectively transmitted from satellites and a terrestrial repeater by demodulating and digitally processing the TDM and OFDM signals. The remote controller includes a transceiver for performing a bi-directional communication through a single channel in such a manner that transmission and reception sides are sync with each other in accordance with a time division duplexing scheme, the transceiver wirelessly transmitting a command from a user, and executing a response received thereto. A Bluetooth radio modem and a commercially available inexpensive protocol can be used, so that it is possible to inexpensively provide, to the driver, the same convenience and advantages as the conventional system. Also, the time division duplexing (TDD) wireless remote controller consumes reduced power. The wireless remote controller also allows the driver to manipulate the satellite radio for listening to music of high quality and displaying diverse information while minimizing reduction of his attention to driving the motor vehicle to maintain safe driving of the motor vehicle.
    • 公开了使用时分协议的无线遥控器。 还公开了配备有无线遥控器的卫星无线电设备,其通过解调和数字处理TDM和TDM来分别从卫星和地面中继器发送的时分复用(TDM)和正交频分复用(OFDM)信号进行音频处理操作, OFDM信号。 遥控器包括:收发器,用于通过单个通道执行双向通信,使得发送和接收侧根据时分双工方案彼此同步,收发机从用户无线地发送命令, 并执行接收到的响应。 可以使用蓝牙无线电调制解调器和商业上便宜的协议,使得可以向驾驶员廉价地提供与常规系统相同的便利和优点。 此外,时分双工(TDD)无线遥控器消耗功率降低。 无线遥控器还允许驾驶员操纵卫星收音机以听高质量的音乐并且显示不同的信息,同时最小化他注意驾驶机动车辆以维持机动车辆的安全驾驶的注意力。
    • 8. 发明申请
    • Input buffer circuit having a differential amplifier structure
    • 具有差分放大器结构的输入缓冲电路
    • US20060139066A1
    • 2006-06-29
    • US11258958
    • 2005-10-26
    • Hyuk-Joon Kwon
    • Hyuk-Joon Kwon
    • H03B1/00
    • H03F3/45237H03K19/018528
    • An input buffer circuit achieving rail-to-rail operation maintains a uniform common mode output voltage even though an input signal having any voltage level is inputted. The input buffer circuit has a differential amplifier structure (and receiving two differential input signals. A first input part has a first inverter circuit into which a first differential input signal is inputted, and a second input part has a second inverter circuit into which the second differential input signal is inputted. The first inverter circuit has a first output node connected to a diode structure having an operating current twice the operating current of the first inverter circuit, and outputs a first output signal. Rail-to-rail operation is achieved, and a common mode output voltage is provided uniformly, with reduced current consumption.
    • 实现轨到轨操作的输入缓冲电路即使输入了具有任何电压电平的输入信号,也保持均匀的共模输出电压。 输入缓冲电路具有差分放大器结构(并且接收两个差分输入信号),第一输入部分具有输入第一差分输入信号的第一反相器电路,第二输入部分具有第二反相器电路,第二反相器电路 差分输入信号被输入,第一反相器电路具有连接到具有第一反相器电路的工作电流的两倍的工作电流的二极管结构的第一输出节点,并输出第一输出信号,实现轨到轨操作, 同时提供共模输出电压,降低电流消耗。