公开(公告)号：US20070172241A1

公开(公告)日：2007-07-26

申请号：US11717381

申请日：2007-03-13

Applicant: Seo-Won Kwon ,  Yun-Kyung Oh ,  Sang-Il Lee ,  Jong-Hun Lee ,  Jong-Hwa Lee

Inventor： Seo-Won Kwon ,  Yun-Kyung Oh ,  Sang-Il Lee ,  Jong-Hun Lee ,  Jong-Hwa Lee

IPC: H04B10/00

CPC classification number: H04B10/25753 ,  H04B1/7163 ,  H04B1/7183 ,  H04B10/25752

Abstract: An apparatus for transmitting signals between UWB networks is disclosed, which comprises: a signal converter for converting received optical signals from another UWB network into UWB signals, transmitting the converted optical signals within a UWB network, and converting UWB signals generated from within the UWB network into optical signals; and an optical signal transmission means for directing the received optical signals the signal converter and a further UWB network.

Abstract translation: 公开了一种用于在UWB网络之间传输信号的装置，包括：信号转换器，用于将来自另一UWB网络的接收光信号转换成UWB信号，在UWB网络内传输经转换的光信号，以及转换UWB网络内产生的UWB信号 进入光信号; 以及用于将所接收的光信号引导到信号转换器和另一UWB网络的光信号传输装置。

公开(公告)号：US07112996B2

公开(公告)日：2006-09-26

申请号：US10894679

申请日：2004-07-19

Applicant: Jong-Hwa Lee

Inventor： Jong-Hwa Lee

IPC: H03K19/0175 ,  H03K19/094

CPC classification number: H03K3/356008 ,  H03K3/356113

Abstract: A level shifter includes an input buffer, a level shifting circuit, a voltage level detecting circuit, an output buffer and a reference logic circuit. The input buffer buffers a small range input signal to output a small range signal. The level shifting circuit transforms the small range signal into a first wide range signal. The voltage level detecting circuit detects whether a power voltage of a low voltage stage is at the ground level, and prevents an indefinite logic state of the level shifter. The output buffer buffers the first wide range signal to output a second wide range signal. The reference logic circuit generates a wide range signal having a predetermined logic status when the power voltage is at the ground level. Thus, a leakage current of the level shifter is reduced.

Abstract translation: 电平移位器包括输入缓冲器，电平移位电路，电压电平检测电路，输出缓冲器和参考逻辑电路。 输入缓冲器缓冲小范围输入信号以输出小范围信号。 电平移位电路将小范围信号变换成第一宽范围信号。 电压电平检测电路检测低电压级的电源电压是否处于地电位，并且防止电平转换器的不确定逻辑状态。 输出缓冲器缓冲第一宽范围信号以输出第二宽范围信号。 当电源电压处于地电平时，参考逻辑电路产生具有预定逻辑状态的宽范围信号。 因此，电平移位器的漏电流减小。

公开(公告)号：US20050265731A1

公开(公告)日：2005-12-01

申请号：US11043216

申请日：2005-01-26

Applicant: Ji-Eun Keum ,  Jong-Hwa Lee ,  Jae-Yeon Song ,  Hyeon-Woo Lee ,  Seung-Kee Yang

Inventor： Ji-Eun Keum ,  Jong-Hwa Lee ,  Jae-Yeon Song ,  Hyeon-Woo Lee ,  Seung-Kee Yang

IPC: H04M1/00 ,  H04B7/26 ,  H04B10/11 ,  H04B10/116 ,  H04M1/22 ,  H04M1/725 ,  H04W84/10 ,  H04W88/02 ,  H04B10/04

CPC classification number: H04B10/114 ,  H04B10/116 ,  H04M1/22 ,  H04M1/7253 ,  H04M2250/52

Abstract: Disclosed is a wireless communication system using visible light and, more particularly, a short-range wireless communication system using a camera sensor module and a flash module mounted on a wireless terminal. The wireless terminal utilizes an LED and a camera sensor selectively for performing camera functions in a wireless terminal and as interface modules for visible light short-range communication.

Abstract translation: 公开了一种使用可见光的无线通信系统，更具体地，使用安装在无线终端上的相机传感器模块和闪存模块的短距离无线通信系统。 无线终端选择性地使用LED和相机传感器来执行无线终端中的相机功能以及用于可见光短距离通信的接口模块。

公开(公告)号：US20050159868A1

公开(公告)日：2005-07-21

申请号：US11002280

申请日：2004-12-03

Applicant: Jong-Hwa Lee

Inventor： Jong-Hwa Lee

IPC: G01B7/30 ,  B62D15/02 ,  G01D5/245 ,  G05D1/00

CPC classification number: B62D15/0215 ,  G01D5/2452

Abstract: A method for measuring the steering angle of steering shaft for vehicle, wherein the steering angle of the steering shaft is measured by using two rotors rotating at a determined RPM ratio according to the rotation of the steering shaft.

Abstract translation: 一种用于测量车辆转向轴的转向角的方法，其中转向轴的转向角通过使用根据转向轴的旋转以确定的转速比转动的两个转子来测量。

公开(公告)号：US20050013314A1

公开(公告)日：2005-01-20

申请号：US10869434

申请日：2004-06-16

Applicant: Se-Youn Lim ,  Jae-Yeon Song ,  Jin-Hee Kim ,  Seo-Won Kwon ,  Yoon-Sun Lee ,  Jong-Hwa Lee

Inventor： Se-Youn Lim ,  Jae-Yeon Song ,  Jin-Hee Kim ,  Seo-Won Kwon ,  Yoon-Sun Lee ,  Jong-Hwa Lee

IPC: H04L12/44 ,  H04L12/18 ,  H04Q11/00 ,  H04L12/28 ,  H04J1/00 ,  H04J3/26 ,  H04L12/56

CPC classification number: H04L12/185 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0047 ,  H04Q2011/0064

Abstract: A multicast transmission method in GEM mode in Gigabit-capable passive optical network and a method of processing frames. The multicast transmission method includes the steps of: (a) setting a multicast connection; and (b) transmitting multicast messages in a GEM mode, wherein said step (a) includes a first sub step (i), in which predetermined ONTs are registered to a multicast group by means of IGMP frames in the first step, and a second sub step (11), in which an OLT assigns a multicast port ID to the multicast group and the ONTs registered to the multicast group. In addition, step (b) includes a first substep (i), in which the OLT assigns a multicast port ID to a message transmitted from a router to the multicast group, and transmits the message, and a second sub-step (ii), in which an ONT, which belongs to the OLT, filters the message, to which the multicast port ID is assigned, by means of a port ID assigned to the ONT.

Abstract translation: 千兆位无源光网络中的GEM模式下的组播传输方法及处理帧的方法。 多播传输方法包括以下步骤：（a）设置组播连接; 以及（b）以GEM模式发送多播消息，其中所述步骤（a）包括第一子步骤（i），其中通过第一步骤中的IGMP帧将预定ONT注册到多播组，第二子步骤 子步骤（11），其中OLT向多播组分配多播端口ID和向多播组注册的ONT。 另外，步骤（b）包括：第一子步骤（i），其中OLT将多播端口ID分配给从路由器发送到多播组的消息，并发送该消息，以及第二子步骤（ii） 其中属于OLT的ONT通过分配给ONT的端口ID来过滤分配了多播端口ID的消息。