公开(公告)号：KR1020110058053A

公开(公告)日：2011-06-01

申请号：KR1020090114709

申请日：2009-11-25

Applicant: 한국전자통신연구원

Inventor： 황택진 ,  이광천

IPC: H03F1/02 ,  H03F3/68

CPC classification number: H03F1/565 ,  H01F27/2847 ,  H03F3/602 ,  H03F2200/541

Abstract: PURPOSE: A high frequency transformer and a power amplifier using the same are provided to ensure a wide band operating region in a high frequency region by controlling a load resistance/impedance. CONSTITUTION: A plurality of primary side coils(300) comprise the first primary side coils(310,315), and the second primary side coils(320,325) and the secondary side coil(350). The first primary side coil and the second primary side coil have a winding ratio different from that of the secondary side coil. A high frequency transformer has different impedance conversion ratios in one transformer. The high frequency transformer changes a load resistance/impedance value of the power amplifier by having the different impedance conversion ratio. The operating region of the power amplifier is extended by converting the load resistance/impedance value.

Abstract translation: 目的：提供高频变压器和使用该变压器的功率放大器，以通过控制负载电阻/阻抗来确保高频区域的宽带工作区域。 构成：多个初级侧线圈（300）包括第一初级侧线圈（310,315）和第二初级侧线圈（320,325）和次级侧线圈（350）。 第一初级侧线圈和第二初级侧线圈的绕组比与次级侧线圈的绕组比不同。 高频变压器在一个变压器中具有不同的阻抗转换比。 高频变压器通过具有不同的阻抗转换比来改变功率放大器的负载电阻/阻抗值。 通过转换负载电阻/阻抗值来扩展功率放大器的工作区域。

公开(公告)号：KR1020100041647A

公开(公告)日：2010-04-22

申请号：KR1020080125158

申请日：2008-12-10

Applicant: 한국전자통신연구원

Inventor： 이성준 ,  김성민 ,  황택진 ,  이광천

IPC: H04B1/26 ,  H04B1/16

CPC classification number: H04B1/26 ,  H04B1/0007

Abstract: PURPOSE: A hetero-dyne receiver apparatus and method using analog discrete-time processing is provided to remove the burden for implementing an SRC(Sample Rate Conversion) in a digital signal processing unit. CONSTITUTION: A wireless signal processing unit converts a frequency of a desirable signal into an intermediate frequency that is integer times of a sample speed indicated in the protocol of a wireless communication system. A discrete time signal processing unit(320) performs sampling the signal converted into the intermediate frequency by time unit, and performs anti-alising filtering and successive decimation. The discrete time signal processing unit processes the final output speed according to the decimation to be the integer times of the sample speed. ADCs(331,332) converts the successive decimation analog signal into digital signal.

Abstract translation: 目的：提供一种使用模拟离散时间处理的异晶体接收装置和方法，以消除在数字信号处理单元中实现SRC（采样率转换）的负担。 构成：无线信号处理单元将期望信号的频率转换为无线通信系统的协议中指示的采样速度的整数倍的中间频率。 离散时间信号处理单元（320）对通过时间单位转换成中频的信号进行采样，并进行反灰化滤波和连续抽取。 离散时间信号处理单元根据抽取将最终输出速度处理为采样速度的整数倍。 ADC（331,332）将连续抽取模拟信号转换为数字信号。

公开(公告)号：KR1020080053138A

公开(公告)日：2008-06-12

申请号：KR1020060125159

申请日：2006-12-08

Applicant: 한국전자통신연구원

Inventor： 황택진 ,  홍헌진 ,  김창주

IPC: H04B7/26

CPC classification number: H04B1/16 ,  H04L1/0031 ,  H04L1/0033 ,  H04L1/0075

Abstract: A method for controlling transmission parameters is provided to reduce the influence of interference between different services and have a fair transmission chance in various services, thereby maximizing the efficiency of a use of frequency and providing a new service to a market easily as it is easy to use a frequency when the new service is created. A method for controlling transmission parameters comprises the following steps of: recognizing the change request of a specific transmission parameter while operating the transmission parameters in initial setting values(200,250); checking whether other transmission parameters can be changed for a change of the specific transmission parameter of which the change is requested(211~214); changing the specific transmission parameter and notifying a user of the completion of parameter change if the other transmission parameters can be changed(221~230); and transmitting a parameter change disable message to the user and holding the transmission parameter if it is impossible to change the other transmission parameters(240).

Abstract translation: 提供了一种用于控制传输参数的方法，以减少不同业务之间的干扰的影响，并且在各种业务中具有公平的传输机会，从而最大限度地提高频率使用的效率，并且容易地向市场提供新的业务。 在创建新服务时使用频率。 一种用于控制传输参数的方法包括以下步骤：在初始设置值（200,250）中操作传输参数时识别特定传输参数的改变请求; 检查是否可以改变其他传输参数以更改要求更改的特定传输参数（211〜214）; 如果其他传输参数可以改变（221〜230），则改变特定传输参数并通知用户完成参数改变; 以及如果不可能改变其他传输参数（240），则向所述用户发送参数改变禁止消息并保持所述传输参数。