公开(公告)号：KR1020150126493A

公开(公告)日：2015-11-12

申请号：KR1020140053436

申请日：2014-05-02

Applicant: 세원텔레텍 주식회사 ,  전북대학교산학협력단

Inventor： 김철동 ,  정용채 ,  이기형

IPC: H03H7/30 ,  H03H7/01

CPC classification number: H03H11/26 ,  H01P1/212 ,  H01P3/08 ,  H03H7/30

Abstract: 본발명은음의군지연여파기(NGDF)에관한것이다. 종래의음의군지연회로관련발명들은공진회로개념을이용한회로구현으로음의군지연(NGD) 동작주파수대역폭, 큰삽입손실, 음의군지연시간제어등의문제점이있어이를해결하기위해본 발명에서는대역억제여파기(BSF)의신호감쇄특성과음의군지연(NGD) 시간을갖는분산전송선로를이용하여음의군지연회로(NGDC)를구성함으로써, 온도변화에따른특성변화가덜 민감하면서도입·출력반사손실이크게개선되고, 대역폭이크게확장된음의군지연여파기(NGDF)를개시한다.

Abstract translation: 本发明涉及负组延迟滤波器。 公开了一种负组延迟滤波器，其通过使用具有信号的分散传输线来配置负组延迟电路（NGDC），对温度变化具有较小的灵敏度，改善的输入/输出回波损耗和扩展带宽 阻带滤波器（BSF）的衰减特性和负组延迟时间（NGD），以解决由前一次引起的负组延迟（NGD）工作频带宽，巨大的插入损耗和负组延迟时间控制的问题 涉及使用谐振电路思想的电路实现的负组延迟电路的发明。

公开(公告)号：KR101313694B1

公开(公告)日：2013-10-08

申请号：KR1020120091395

申请日：2012-08-21

Applicant: 세원텔레텍 주식회사 ,  전북대학교산학협력단

Inventor： 김철동 ,  정용채

IPC: H03H9/46 ,  H03H7/12 ,  H01P1/20

CPC classification number: H01P1/20 ,  H01P1/203 ,  H01P1/212 ,  H03H7/12

Abstract: PURPOSE: A harmonic-suppressed variable dual band pass filter (BPF) is provided to widen the range of adjustable frequencies in dual pass band compared to a normal variable filter. CONSTITUTION: A harmonic-suppressed variable dual BPF comprises a transmission line (TL), two varactor diodes, and a resonator. The transmission line has characteristic admittance and physical length (L1-L3). The two varactor diodes are connected to both ends (TLin,TLout) of the transmission line. The resonator comprises one varactor diode. The one varactor diode is short connected to the center of the transmission line. [Reference numerals] (AA,BB) Resonator

Abstract translation: 目的：提供一种谐波抑制可变双带通滤波器（BPF），以扩展双通带可调频率范围，与普通可变滤波器相比。 构成：谐波抑制的可变双BPF包括传输线（TL），两个变容二极管和谐振器。 传输线具有特征导纳和物理长度（L1-L3）。 两个变容二极管连接到传输线的两端（TLin，TLout）。 谐振器包括一个变容二极管。 一个变容二极管短路连接到传输线的中心。 （标号）（AA，BB）谐振器

公开(公告)号：KR1020140096439A

公开(公告)日：2014-08-06

申请号：KR1020130008683

申请日：2013-01-25

Applicant: 전북대학교산학협력단

Inventor： 정용채 ,  전국진 ,  조형섭 ,  김도형 ,  홍민석 ,  황대규

IPC: A61G5/02 ,  F16D63/00 ,  B60T1/06 ,  B62B5/04

Abstract: The present invention relates to a wheelchair with an eddy current brake and, more especially, to a wheelchair with an eddy current brake capable of easily putting the brakes on the wheelchair by using an eddy current. The wheelchair with the eddy current brake of the present invention includes a body with a seat; wheels mounted on both sides of the body; and brake units mounted at the body and reducing the rotation speed of the wheels. The brake unit includes a conductive metal plate rotating with the wheel; a magnet arranged to be adjacent to the metal plate; a transferring member mounted on the body and transferring the magnet to face the metal plate; and an operation unit operating the transferring member. The torque of the wheels is reduced by an eddy current when the magnets are arranged to be adjacent to the metal plates by the operation unit and transferring unit.

Abstract translation: 本发明涉及一种具有涡流制动器的轮椅，更具体地，涉及一种具有涡流制动器的轮椅，其能够通过使用涡流容易地将制动器放置在轮椅上。 具有本发明的涡流制动器的轮椅包括具有座椅的本体; 车轮安装在车身两侧; 以及安装在车身上并减小车轮转速的制动单元。 制动单元包括与车轮一起旋转的导电金属板; 布置成与金属板相邻的磁体; 安装在所述主体上并将所述磁体转移到面对所述金属板的转印构件; 以及操作所述转印构件的操作单元。 当磁体通过操作单元和传送单元布置成与金属板相邻时，轮的扭矩被涡流减小。