-
公开(公告)号：US20180026776A1
公开(公告)日：2018-01-25
申请号：US15657087
申请日：2017-07-21
Inventor： Sung Jun LEE
CPC classification number: H04L5/1461 , H04B1/48 , H04B1/525 , H04B2001/485
Abstract: An apparatus for canceling a self-interference signal and a transceiver including the same are disclosed. The transceiver may include an antenna; a circulator transmitting a portion of a transmit signal to the antenna and transmitting a receive signal received through the antenna to a receiver; and a self-interference signal canceling unit receiving a first signal, which is a portion of the transmit signal, and physically copying a self-interference signal generated by the antenna and the circulator to generate an estimation signal of the self-interference signal.
-
公开(公告)号：US20150017932A1
公开(公告)日：2015-01-15
申请号：US14150084
申请日：2014-01-08
Inventor： Seunghyun JANG , Sung Jun LEE , Young Kyun CHO , Bong Hyuk PARK , JAE HO JUNG , Kwangchun LEE
CPC classification number: H04W52/04 , H04W52/241 , H04W52/52
Abstract: A signal amplification apparatus includes a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period and a second period, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal. Further, the signal amplification apparatus includes a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator to output the amplified signal.
Abstract translation: 信号放大装置包括：第一调制器，被配置为接收包络信号，使用预定的参考电平将接收的包络信号分离成第一周期和第二周期，数字地调制第二周期的信号以输出数字调制信号 第一输出端，并将第一周期的信号输出到第二输出端。 此外，信号放大装置包括：第二调制器，被配置为将通过第一输出端子输入的数字调制信号与相位调制载波信号混合; 包络调制器，被配置为输出所述第一周期的信号作为电源信号; 以及功率放大器，被配置为放大由第二调制器输出的混合信号以输出放大的信号。
-
3.发明申请公开(公告)号：US20150215147A1
公开(公告)日：2015-07-30
申请号：US14595653
申请日：2015-01-13
Inventor： Seunghyun JANG , Young Kyun CHO , Sung Jun LEE , Bong Hyuk PARK , JAE HO JUNG , Kwangchun LEE
CPC classification number: H04L27/2627 , H03F1/3247 , H03F3/24 , H04L25/4902 , H04L25/4923 , H04L27/20 , H04L27/368
Abstract: Provided is a signal transmission device including a first modulation unit generating a first modulated signal having at least three logic levels by modulating an input signal; a characteristic adjustment unit generating an adjusted first modulated signal by adjusting the at least one of electrical characteristic values based on an adjustment signal; a second modulation unit generating a second modulated signal by modulating the adjusted first modulated signal; and an adjustment operation unit generating the adjustment signal based on electrical characteristic values respectively corresponding to the at least three logic levels of the first modulated signal and corresponding to at least three logic levels of the second modulated signal. Linearity of the modulated signal generated by the provided signal transmission device is enhanced.
Abstract translation: 提供了一种信号传输设备，包括：第一调制单元，通过调制输入信号产生具有至少三个逻辑电平的第一调制信号; 特征调整单元，通过基于调整信号调整所述电特性值中的至少一个来生成经调整的第一调制信号; 第二调制单元，通过调制经调整的第一调制信号产生第二调制信号; 以及调整操作单元，其基于分别对应于所述第一调制信号的所述至少三个逻辑电平并对应于所述第二调制信号的至少三个逻辑电平的电特性值生成所述调整信号。 由提供的信号传输装置产生的调制信号的线性增强。
-
Patent Agency Ranking
4.发明申请METHOD OF GENERATING DRIVING SIGNAL FOR DRIVING DUAL MODE SUPPLY MODULATOR FOR POWER AMPLIFIER AND DEVICE THEREOF 有权产生用于驱动功率放大器的双模式供电调制器的驱动信号的方法及其装置公开(公告)号：US20150071371A1
公开(公告)日：2015-03-12
申请号：US14267262
申请日：2014-05-01
Inventor： Sung Jun LEE , Jae Ho JUNG , Kwangchun LEE
IPC: H04L25/49
CPC classification number: H03F3/245 , H03F1/025 , H03F3/195 , H03F2200/102 , H03F2200/331 , H03F2200/336 , H03F2200/511 , H03F2200/78 , H03M7/3004
Abstract: Provided is a method of generating a driving signal for driving a dual mode supply modulator for a power amplifier. The method includes obtaining an envelope of a complex baseband signal to be transmitted, comparing the envelope of the complex signal with a preset threshold value, when a current envelope of the complex signal is the preset threshold value or greater or when there is a result having the preset threshold value or greater in previous N comparisons, outputting a digital board output signal configured with a first logic level through a digital-to-analog converter; and when the current envelope of the complex signal is smaller than the preset threshold value and when there is no result having the preset threshold value or greater in the previous N comparisons, outputting a digital board output signal configured with a second logic level through the digital-to-analog converter.
Abstract translation: 提供了一种产生用于驱动功率放大器的双模式电源调制器的驱动信号的方法。 该方法包括当复数信号的当前包络是预设阈值或更大时获得要发送的复基带信号的包络，将复数信号的包络与预设阈值进行比较，或者当具有 在先前的N比较中预设的阈值或更大，通过数模转换器输出配置有第一逻辑电平的数字板输出信号; 并且当复信号的当前包络小于预设阈值时，并且当在先前N次比较中没有具有预设阈值或更大值的结果时，通过数字信号输出配置有第二逻辑电平的数字板输出信号 模拟转换器。
-
5.发明申请公开(公告)号：US20150078500A1
公开(公告)日：2015-03-19
申请号：US14294836
申请日：2014-06-03
Inventor： Sung Jun LEE , Young Kyun CHO , Seunghyun JANG , Bong Hyuk PARK , JAE HO JUNG , Kwangchun LEE
IPC: H04L7/00
CPC classification number: H04L7/0016 , H04L27/366 , H04L27/02 , H04L27/361
Abstract: Provided is a method of correcting a time misalignment between envelope and phase components in a transmitting apparatus which separates envelope and phase components of a signal, processes them, and then recombines them to transmit the recombined signal. For this, in a method of correcting a time misalignment between envelope and phase components according to an embodiment of the present invention, a time misalignment is corrected by applying a time delay to at least one of envelope and phase components in digital and analog signal processing operations, or applying a time delay to an envelope or phase component by a pre-processing operation.
Abstract translation: 提供了一种校正发送装置中的包络和相位分量之间的时间偏移的方法，该发送装置分离信号的包络和相位分量，处理它们，然后将它们复合以发送重组信号。 为此，在根据本发明的实施例的校正包络和相位分量之间的时间失准的方法中，通过对数字和模拟信号处理中的包络和相位分量中的至少一个应用时间延迟来校正时间偏移 操作或通过预处理操作对信封或相位分量施加时间延迟。
-
公开(公告)号：US20240224221A1
公开(公告)日：2024-07-04
申请号：US18491468
申请日：2023-10-20
Inventor： Seok Bong HYUN , Sung Jun LEE , Sun Woo KONG , Bong Hyuk PARK , Hui Dong LEE , Seung Hyun JANG
CPC classification number: H04W64/00 , G01S5/0218
Abstract: An operation method of a first communication node may comprise: receiving a first signal from a second communication node of the communication system; estimating a first time interval corresponding to a first path detected as a FAP among one or more paths through which the first signal is received; defining a first gain control function based on the estimated first time interval; receiving a second signal transmitted from the second communication node by variably controlling a reception gain based on the first gain control function; estimating a second time interval corresponding to a DP between the first and second communication nodes, based on a result of receiving the second signal based on the first gain control function; and transmitting relative distance information on the second time interval to a first positioning device.
-
7.发明申请METHOD OF FILTERING DIGITAL SIGNAL FOR MAINTAINING DATA TRANSMISSION RATE IN TDD OR TDMA SYSTEM AND COMMUNICATION SYSTEM ADOPTING THE SAME 有权滤波用于维持TDD或TDMA系统中的数据传输速率的数字信号和通信系统的通信系统的方法公开(公告)号：US20160191183A1
公开(公告)日：2016-06-30
申请号：US14713347
申请日：2015-05-15
Inventor： Sung Jun LEE
CPC classification number: H04B1/16 , H03F3/24 , H03H21/0027 , H04B1/0028 , H04B1/0475 , H04B2001/0408 , H04J3/00 , H04J3/0608 , H04L25/03834 , H04L27/2634
Abstract: Provided is a digital filter implementing a function by using circular convolution of a digital input signal and a unit pulse response of the digital filter in applying a filter to the digital signal.In addition, a configuration sequence change of an output signal, which occurs as a result of digital filtering according to the present invention, in comparison to an input signal, is corrected by inversely performing circular shifting in a transmitter by amount of the configuration sequence change, or by reconstructing a signal after making synchronization and acquiring the signal previous to a time point of the synchronization by amount of the configuration sequence change, in a receiver.
Abstract translation: 提供了一种通过使用数字输入信号的循环卷积和数字滤波器的单位脉冲响应来对数字信号施加滤波器来实现功能的数字滤波器。 此外，与输入信号相比，根据本发明的作为数字滤波的结果而发生的输出信号的配置顺序变化通过在发射机中通过配置顺序变化量的逆向循环来校正 ，或者通过在同步之后重建信号，并且在接收机中通过配置顺序改变的量获取同步时间点之前的信号。
-
公开(公告)号：US20140064355A1
公开(公告)日：2014-03-06
申请号：US14011268
申请日：2013-08-27
Inventor： Young Kyun CHO , Sung Jun LEE , Seung Hyun JANG , Bong Hyuk PARK , Jae Ho JUNG , Kwang Chun LEE
CPC classification number: H04L25/4902 , H03K7/08 , H03M3/504 , H04B14/062
Abstract: A delta-sigma modulator and a transmitter apparatus including the same are disclosed. The delta-sigma modulator includes a first integrator, a second integrator, a first comparator configured to compare an output signal of the second integrator and a reference signal, and output a first comparison signal, a second comparator configured to compare the output signal of the second integrator and the reference signal, and output a second comparison signal, a first DAC configured to output the first signal corresponding to the first comparison signal and the second comparison signal, a second DAC configured to output the second signal corresponding to the first comparison signal and the second comparison signal, a delayer configured to generate a delayed signal that delays the first comparison signal and the second comparison signal by a predetermined time, and an output DAC configured to generate an output signal having a multi-level corresponding to the delayed signal.
Abstract translation: 公开了一种Δ-Σ调制器及其发射机装置。 Δ-Σ调制器包括第一积分器，第二积分器，被配置为比较第二积分器的输出信号和参考信号的第一比较器，并输出第一比较信号;第二比较器，被配置为比较第二积分器的输出信号 第二积分器和参考信号，并输出第二比较信号，第一DAC被配置为输出对应于第一比较信号和第二比较信号的第一信号;第二DAC，被配置为输出对应于第一比较信号的第二信号 和第二比较信号，延迟器，被配置为产生将第一比较信号和第二比较信号延迟预定时间的延迟信号;以及输出DAC，被配置为产生具有与延迟信号相对应的多电平的输出信号 。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.014 seconds)
