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公开(公告)号：KR1019910008758B1
公开(公告)日：1991-10-19
申请号：KR1019890003068
申请日：1989-03-11
CPC classification number: Y02D50/20
Abstract: The line terminator deposited between the subscriber lines and the ISDN test exchange. The line terminator includes a line driver (10) for transmitting the subscriber information and signalling type information to the ISDN test exchange, for supplying power to a narrow band interface unit and for controlling the narrow band interface unit by reversing the polarity of the power, an U-tranceiver (20) for receiving and transmitting the subscriber information and the signalling method information to a time dividing switch to a LT control unit (2) respectively, a D- channel driver (30) for executing data communication with the U-tranceiver using the HDLC loop method and for transmitting the processed information to the LT controller (2), and a processor interface unit (40) for controlling the I/O information of the D- channel driver.
Abstract translation: 线路终端器存放在用户线路和ISDN测试交换机之间。 线路终端器包括用于将用户信息和信令类型信息发送到ISDN测试交换机的线路驱动器（10），用于向窄带接口单元供电并通过反转功率的极性来控制窄频带接口单元， 用于分别向LT控制单元（2）向时间分配开关发送用户信息和信令方法信息的U型收发器（20），用于与U控制单元执行数据通信的D信道驱动器（30） 使用HDLC循环方法并将处理的信息发送到LT控制器（2）的处理器接口单元（40），用于控制D通道驱动器的I / O信息。
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公开(公告)号：KR100366298B1
公开(公告)日：2002-12-31
申请号：KR1020000003870
申请日：2000-01-27
Applicant: 한국전자통신연구원
IPC: G01R23/16
Abstract: 본 발명은, 차수의 증가에 따라 펄스폭이 현저히 좁아지며 그 스펙트럼 역시 차수에 따라 체계적으로 변화하는 고차원펄스(high-order pulse)의 특성을 이용하여, 극초단펄스의 스펙트럼 및 전송 스펙트럼을 효율적으로 분석하는 방법에 관한 것이다. 종래에는 가우시안(Gaussian) 펄스, 쌍곡선시컨트(Sech) 펄스, 로렌츠(Lorentz) 펄스 등을 사용하여 극초단펄스를 근사화하였으나, 이는 펄스의 폭이 감소하는 정도에 따른 정확성을 보증할 수 없으며, 극초단펄스의 형태가 근사적 펄스의 형태와 다르면 실질적인 스펙트럼 분석이 불가능하였다.
본 발명은, 부분응답(PRS: partial-response signaling)시스템의 일반적 모델을 순환적으로 수정하여 고차원 펄스를 유도하고, 고차원 펄스의 그 차수를 조절하여 FWHM(Full Width Half Maximum) 폭이 조절함으로써 극초단펄스를 근사화하며, 조절된 고차원 펄스의 차수에 따라 스펙트럼을 용이하게 분석한다. 또한, 본 발명은 이러한 극초단펄스의 디지털 전송에 있어서 전송 스펙트럼을 분석하는 용이한 방법도 함께 제시한다. 본 발명에 따른 순환형 부분응답시스템은 그 탭계수를 조정함으로써 다양한 형태의 펄스를 얻을 수 있으므로 다양한 형태와 폭을 갖는 극초단펄스에 대해서도 융통성 있게 적용될 수 있다.-
公开(公告)号：KR100250477B1
公开(公告)日：2000-04-01
申请号：KR1019970066545
申请日：1997-12-06
Applicant: 한국전자통신연구원
Inventor： 정희창
IPC: H04B7/26
CPC classification number: H04W8/02 , G06F19/00 , G06F19/3418 , H04W4/02 , H04W4/029 , H04W4/04 , H04W60/00 , H04W64/00 , H04W84/12
Abstract: PURPOSE: The method is provided to transceive data between the mobile terminal and an AC(Access Point), so that the mobile terminal can notify an emergent state of a patient to a home location AC and the home location AC can notify necessary information to the patient. CONSTITUTION: An association is requested to a home location AP(Access Point)(202). The confirmation of the association is delivered(203). The mobile terminal periodically confirms whether a beacon signal of the AP is received(204). If a beacon signal is received, whether a basic service network identifier is identical is confirmed(205). If so, a synchronization clock is regulated(206). If the basic service network identifier is not identical, a re-association is requested to the AP(209). Whether the re-association is responded is checked five times(210). If responded, a synchronization clock is regulated(206), and if not responded, the non-response is notified to a network for maintenance(211). If a beacon signal is not received, a wireless channel and clock are regulated(207), and whether beacon information of a base station is received is repeatedly checked five times at maximum(208).
Abstract translation: 目的：提供该方法以在移动终端和AC（接入点）之间收发数据，使得移动终端可以将患者的紧急状态通知到本地位置AC，并且归属位置AC可以将必要的信息通知给 患者。 构成：请求到家庭地点AP（接入点）（202）的关联。 交付协会的确认（203）。 移动终端周期性地确认是否接收到AP的信标信号（204）。 如果接收到信标信号，则确认基本服务网络标识符是否相同（205）。 如果是，则同步时钟被调节（206）。 如果基本服务网络标识符不相同，则向AP请求重新关联（209）。 检查重新关联是否被响应五次（210）。 如果响应，同步时钟被调节（206），如果不响应，则将不响应通知给网络进行维护（211）。 如果没有接收到信标信号，则对无线信道和时钟进行调整（207），并且基站的信标信息是否被最多重复检查五次（208）。
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Patent Agency Ranking
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公开(公告)号：KR1019910005491B1
公开(公告)日：1991-07-31
申请号：KR1019880016681
申请日：1988-12-14
Abstract: The apparatus provides the basic interface function to communicate 2B+D information between the ISDN and the maintenance function by adopting the digital signal transmission function. The apparatus includes a four line subscriber line terminal (1) having a first interface unit and a transformer (T1), a two line subscriber line terminal (2) comprising a transformer for connecting the subscriber's circuit and the network and a second interface unit, a system bus modulator (4) for controlling the system bus to connect with the first interface unit or the second interface unit, a power supply (5) for generating the polarity reversing signal according to the polarity of the DC voltage provided from the network, and a control unit (3) for assigning the C-channel bit to the data bus, for discriminating the activation/deactivation request of the network.
Abstract translation: 该设备提供基本接口功能，通过采用数字信号传输功能，在ISDN和维护功能之间传送2B + D信息。 该装置包括具有第一接口单元和变压器（T1）的四线用户线路终端（1），包括用于连接用户电路和网络的变压器和第二接口单元的两线用户线路终端（2） 用于控制系统总线与第一接口单元或第二接口单元连接的系统总线调制器（4），用于根据从网络提供的直流电压的极性产生极性反转信号的电源（5） 以及用于将C信道位分配给数据总线的控制单元（3），用于区分网络的激活/去激活请求。
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