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1. 发明授权

US09014281B2 Delta-sigma modulator and transmitter including the same 有权
标题翻译： Delta-Σ调制器和发射机包括相同的
公开(公告)号：US09014281B2
公开(公告)日：2015-04-21
申请号：US14011268
申请日：2013-08-27
申请人： Electronics and Telecommunications Research Institute
发明人： Young Kyun Cho , Sung Jun Lee , Seung Hyun Jang , Bong Hyuk Park , Jae Ho Jung , Kwang Chun Lee
IPC分类号： H04L25/49 , H03K7/08 , H04B14/06 , H03M3/00
CPC分类号： H04L25/4902 , H03K7/08 , H03M3/504 , H04B14/062
摘要： 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.
摘要翻译：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。

2. 发明授权

US10389510B2 Self-interference signal cancellation apparatus and transceiver including the same 有权
公开(公告)号：US10389510B2
公开(公告)日：2019-08-20
申请号：US15657087
申请日：2017-07-21
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Sung Jun Lee
IPC分类号： H04L5/14 , H04B1/48 , H04B1/525
摘要： 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.

3. 发明授权

US09780820B2 Method of filtering digital signal for maintaining data transmission rate in TDD or TDMA system and communication system adopting the same 有权
公开(公告)号：US09780820B2
公开(公告)日：2017-10-03
申请号：US14713347
申请日：2015-05-15
申请人： Electronics and Telecommunications Research Institute
发明人： Sung Jun Lee
IPC分类号： H04J3/02 , H04B1/16 , H04B1/04 , H03H21/00 , H04J3/00 , H04L25/03 , H04L27/26 , H04B1/00
CPC分类号： H04B1/16 , H03F3/24 , H03H21/0027 , H04B1/0028 , H04B1/0475 , H04B2001/0408 , H04J3/00 , H04J3/0608 , H04L25/03834 , H04L27/2634
摘要： 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.

4. 发明授权

US09300513B2 Signal transmission device adjusting electrical characteristic value corresponding to logic level and signal transmitting method thereof 有权
标题翻译：信号传输装置调整对应于逻辑电平的电特性值及其信号发送方法
公开(公告)号：US09300513B2
公开(公告)日：2016-03-29
申请号：US14595653
申请日：2015-01-13
申请人： Electronics and Telecommunications Research Institute
发明人： Seunghyun Jang , Young Kyun Cho , Sung Jun Lee , Bong Hyuk Park , Jae Ho Jung , Kwangchun Lee
IPC分类号： H03C3/00 , H04L27/26 , H04L27/20 , H04L25/49 , H04L27/36 , H03F1/32 , H03F3/24
CPC分类号： H04L27/2627 , H03F1/3247 , H03F3/24 , H04L25/4902 , H04L25/4923 , H04L27/20 , H04L27/368
摘要： 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.
摘要翻译：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。

5. 发明授权

US09295001B2 Signal amplification apparatus and method 有权
标题翻译：信号放大装置及方法
公开(公告)号：US09295001B2
公开(公告)日：2016-03-22
申请号：US14150084
申请日：2014-01-08
申请人： Electronics and Telecommunications Research Institute
发明人： Seunghyun Jang , Sung Jun Lee , Young Kyun Cho , Bong Hyuk Park , Jae Ho Jung , Kwangchun Lee
IPC分类号： H04B1/66 , H01Q11/12 , H04B1/04 , H04W52/04 , H04W52/24 , H04W52/52
CPC分类号： H04W52/04 , H04W52/241 , H04W52/52
摘要： 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.
摘要翻译：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。

6. 发明授权

US09143310B2 Method of correcting time misalignment between envelope and phase components 有权
标题翻译：纠正包络和相位分量之间的时间偏移的方法
公开(公告)号：US09143310B2
公开(公告)日：2015-09-22
申请号：US14294836
申请日：2014-06-03
申请人： Electronics and Telecommunications Research Institute
发明人： Sung Jun Lee , Young Kyun Cho , Seunghyun Jang , Bong Hyuk Park , Jae Ho Jung , Kwangchun Lee
IPC分类号： H04L27/02 , H04L7/00
CPC分类号： H04L7/0016 , H04L27/366 , H04L27/02 , H04L27/361
摘要： 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.
摘要翻译：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。

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