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1. 发明授权

US07933943B2 Multiplierless FIR digital filter and method of designing the same 有权
标题翻译：多重FIR数字滤波器及其设计方法
公开(公告)号：US07933943B2
公开(公告)日：2011-04-26
申请号：US11634559
申请日：2006-12-06
申请人： Jung Bum Kim , In San Jeon , Ik Soo Eo
发明人： Jung Bum Kim , In San Jeon , Ik Soo Eo
IPC分类号： G06F17/10
CPC分类号： H03H17/06 , H03H17/0225 , H03H2017/0072
摘要： Provided are a multiplierless FIR digital filter and a method of designing the same, in which a filtering operation is performed by a small addition/subtraction circuit using extracted information after analyzing the property of a given coefficient and extracting information required for design by only adding/subtracting operations. In the method of designing the multiplierless FIR digital filter, tables are created to extract and store information needed for adding and subtracting operations. An addition table is created to store values obtained by adding the input data synchronized with a clock frequency. Further, a value corresponding to multiplication is obtained by performing extraction and error correction on the added values from the tables, and an adder chain of an output terminal sums up the values and outputs the filtering results, thereby effectively implementing a logic circuit of the multipliedess FIR digital filter.
摘要翻译：提供了一种无乘法FIR数字滤波器及其设计方法，其中通过分析给定系数的属性后的提取信息，通过小型加减法电路进行滤波操作，并通过仅添加/ 减去运算。在设计无乘数FIR数字滤波器的方法中，创建表以提取和存储加减运算所需的信息。创建附加表以存储通过添加与时钟频率同步的输入数据而获得的值。此外，通过对来自表的附加值执行提取和纠错来获得与乘法相对应的值，并且输出端的加法器链将该值相加并输出滤波结果，从而有效地实现乘法器的逻辑电路 FIR数字滤波器

2. 发明授权

US07929620B2 Blind channel estimation in an orthogonal frequency division multiplexing system 有权
标题翻译：正交频分复用系统盲信道估计
公开(公告)号：US07929620B2
公开(公告)日：2011-04-19
申请号：US11634276
申请日：2006-12-05
申请人： Tae Joon Kim , Ik Soo Eo , Hee Bum Jung
发明人： Tae Joon Kim , Ik Soo Eo , Hee Bum Jung
IPC分类号： H04L27/28 , H04J11/00
CPC分类号： H04L25/0238 , H04L25/0212 , H04L25/0248
摘要： A method for stable channel estimation to increase frequency band efficiency that is lost by using a pilot, and to reduce the complexity and the sensitivity to channel zero. The method includes generating an i-th symbol block Si including N carriers, performing an inverse fast Fourier transform (IFFT) operation on the i-th symbol block, and forming an orthogonal frequency division multiplexing (OFDM) symbol block. The method also includes attaching a guard interval sample in front of the i-th OFDM symbol block Ui and forming at least one OFDM symbol block Ui,cp. The method further includes modeling the formed OFDM symbol block Ui,cp with a channel finite impulse response (FIR) filter and estimating channel impulse response using signals yi received through a channel.
摘要翻译：一种用于稳定信道估计的方法，以增加使用导频丢失的频带效率，并降低对信道零的复杂度和灵敏度。该方法包括生成包括N个载波的第i个符号块Si，对第i个符号块执行快速傅里叶逆变换（IFFT），并形成正交频分复用（OFDM）符号块。该方法还包括在第i个OFDM符号块Ui的前面附加保护间隔样本并形成至少一个OFDM符号块U 1，c p。该方法还包括使用信道有限脉冲响应（FIR）滤波器对形成的OFDM符号块Ui，cp进行建模，并且使用通过信道接收的信号y i来估计信道脉冲响应。

3. 发明授权

US07787555B2 Multi-input multi-output system and method for demodulating a transmitting vector in a receiver of the system 失效
标题翻译：用于解调系统的接收机中的发射矢量的多输入多输出系统和方法
公开(公告)号：US07787555B2
公开(公告)日：2010-08-31
申请号：US11739209
申请日：2007-04-24
申请人： Tae Joon Kim , Ik Soo Eo , Hyoun Kuk Kim , Hyun Cheol Park
发明人： Tae Joon Kim , Ik Soo Eo , Hyoun Kuk Kim , Hyun Cheol Park
IPC分类号： H04K1/10 , H04L27/28 , H04L1/02 , H04B7/02 , H04B7/08
CPC分类号： H04B7/0434
摘要： Provided is a receiver of a multi-input multi-output system using multiple antennas, the receiver including: a first multiplying unit for multiplying a vector r received via the antenna by a Hermitian matrix Q; a candidate transmitting vector generating unit for detecting a signal on a lowest modulation order transmitting antenna from the received vector y output from the first multiplying unit, creating as many symbol candidates as the modulation order of the detected signal, and generating a candidate transmitting vector using each symbol candidate; a transmitting vector determining unit for obtaining a distance between each candidate transmitting vector generated by the candidate transmitting vector generating unit and the received vector y to determine a final transmitting vector; and a demodulating unit for demodulating the final transmitting vector determined by the transmitting vector determining unit. Since the receiver detects a transmitting vector with reference to a signal on a lowest modulation order transmitting antenna, the receiver can have a simpler structure.
摘要翻译：提供了一种使用多个天线的多输入多输出系统的接收机，所述接收机包括：第一乘法单元，用于将通过所述天线接收的矢量r乘以Hermitian矩阵Q; 候选发射矢量产生单元，用于从从第一乘法单元输出的接收矢量y中检测最低调制阶发射天线上的信号，创建与检测信号的调制阶数一样多的符号候选，并使用每个符号候选人; 发送矢量确定单元，用于获得由候选发射矢量生成单元生成的每个候选发射矢量与接收矢量y之间的距离，以确定最终发射矢量; 以及解调单元，用于解调由发送矢量确定单元确定的最终发送矢量。由于接收机参考最低调制阶发射天线上的信号检测发射矢量，所以接收机可以具有更简单的结构。

4. 发明授权

US08693581B2 Signal receiver with digital front end supporting multiple band and signal receiving method using the same 有权
标题翻译：信号接收机具有数字前端支持多频带和信号接收方式
公开(公告)号：US08693581B2
公开(公告)日：2014-04-08
申请号：US13284751
申请日：2011-10-28
申请人： Sang-Kyun Kim , Ik Soo Eo , Mijeong Park , Hyun Kyu Yu
发明人： Sang-Kyun Kim , Ik Soo Eo , Mijeong Park , Hyun Kyu Yu
IPC分类号： H03K9/00 , H04L27/00
CPC分类号： H04B1/001 , H04B1/0021
摘要： Disclosed is a method for receiving an analog signal from a receiver supporting at least a first channel band and a second channel band. The method for receiving an analog signal includes sampling the analog signal received through an antenna, generating a decimated signal by passing the sampled signal to a CIC decimation filter; and inputting the decimated signal to a channel selection filter.
摘要翻译：公开了一种从支持至少第一信道频带和第二信道频带的接收机接收模拟信号的方法。用于接收模拟信号的方法包括对通过天线接收的模拟信号进行采样，通过将采样信号传递给CIC抽取滤波器来产生抽取信号; 并将抽取的信号输入到频道选择滤波器。

5. 发明申请

US20130163699A1 DIGITAL FRONT END RECEIVER USING DC OFFSET COMPENSATION SCHEME 有权
标题翻译：数字前端接收器使用直流偏移补偿方案
公开(公告)号：US20130163699A1
公开(公告)日：2013-06-27
申请号：US13609704
申请日：2012-09-11
申请人： Sang-Kyun Kim , Ik Soo Eo , Hyun Kyu Yu
发明人： Sang-Kyun Kim , Ik Soo Eo , Hyun Kyu Yu
IPC分类号： H04B1/16
CPC分类号： H04B1/0017 , H04B1/0021
摘要： The present invention relates to a digital front end receiver using a DC offset compensation scheme. The digital front end receiver includes a DC offset compensation filter configured to remove DC offset components from signals received from a digital mixer and a Cascaded Integrator-Comb (CIC) decimation filter configured to reduce a sampling rate of the signals received from the DC offset compensation block.
摘要翻译：本发明涉及使用DC偏移补偿方案的数字前端接收机。数字前端接收器包括DC偏移补偿滤波器，其被配置为从数字混频器接收的信号中去除DC偏移分量，并且Cascaded Integrator-Comb（CIC）抽取滤波器被配置为降低从DC偏移补偿接收到的信号的采样率块。

6. 发明申请

US20120163434A1 DIGITAL RECEIVER FOR MOBILE COMMUNICATION AND OPERATING METHOD 审中-公开
标题翻译：用于移动通信和操作方法的数字接收机
公开(公告)号：US20120163434A1
公开(公告)日：2012-06-28
申请号：US13331252
申请日：2011-12-20
申请人： Sang-Kyun Kim , Mijeong Park , Ik Soo Eo , Hyun Kyu Yu
发明人： Sang-Kyun Kim , Mijeong Park , Ik Soo Eo , Hyun Kyu Yu
IPC分类号： H04B1/38 , H04L27/00
CPC分类号： H04L27/0014 , H04B1/0007 , H04L25/03114 , H04L2027/0024
摘要： This invention is regarding mobile communication digital receiver and operating methods of a digital front end, which uses a digital mixer to change the center frequency to DC; a digital mixer allows the user to evade I/Q mismatch challenges; an Analog-to-Digital Converter (ADC) converts a Radio Frequency analog signal to a digital signal; a digital mixer converts the ADC's output signal's center frequency to DC; a digital front end has an automatic gain control over multiple frequency bands and contains a noise filter; a modem receives the digital front end's output and demodulates the signal.
摘要翻译：本发明涉及数字前端的移动通信数字接收机和操作方法，其使用数字混频器将中心频率改变为DC; 数字混合器允许用户逃避I / Q不匹配的挑战; 模拟数字转换器（ADC）将射频模拟信号转换为数字信号; 数字混频器将ADC的输出信号的中心频率转换为DC; 数字前端具有对多个频带的自动增益控制，并包含噪声滤波器; 调制解调器接收数字前端的输出并解调信号。

7. 发明授权

US07197065B2 Region searcher and method of driving the same and code searcher using the same 失效
标题翻译：区域搜索器及其驱动方法及使用其的代码搜索器
公开(公告)号：US07197065B2
公开(公告)日：2007-03-27
申请号：US10238685
申请日：2002-09-09
申请人： Ik Soo Eo , Young Hoon Kim , Hee Bum Jung , Kyung Soo Kim
发明人： Ik Soo Eo , Young Hoon Kim , Hee Bum Jung , Kyung Soo Kim
IPC分类号： H04B1/69
CPC分类号： H04B1/7077 , H04B1/70755
摘要： A region searcher, a method of driving the same, and a code searcher using the same are disclosed. When a predetermined region is iteratively searched, the energy value corresponding to the same hypothesis location value is stored by using a searcher having divided two buffers, thereby the implementation complexity thereof can be remarkably reduced, without using a simple memory.In addition, in case where the region is iteratively searched in the state of the deteriorated signal-to-noise ratio to find the energy value at one hypothesis location and in case where the region must be iteratively searched because of the restriction which the size of the matched filter can be not increased, the implementation complexity thereof can be remarkably reduced.
摘要翻译：公开了一种区域搜索器，其驱动方法和使用该搜索器的代码搜索器。当迭代地搜索预定区域时，通过使用具有划分的两个缓冲器的搜索器来存储对应于相同假设位置值的能量值，从而可以显着地减少其实施复杂度，而不使用简单的存储器。

8. 发明授权

US09294135B2 Digital radio frequency (RF) receiver 有权
标题翻译：数字射频（RF）接收机
公开(公告)号：US09294135B2
公开(公告)日：2016-03-22
申请号：US13609638
申请日：2012-09-11
申请人： Ik Soo Eo , Sang-Kyun Kim , Mun Yang Park , Seon-Ho Han , Hyun Kyu Yu
发明人： Ik Soo Eo , Sang-Kyun Kim , Mun Yang Park , Seon-Ho Han , Hyun Kyu Yu
IPC分类号： H04B1/00
CPC分类号： H04B1/0021
摘要： A digital RF receiver does not use a separate receiver according to a mode and a band for multi-mode reception, MIMO reception, and bandwidth extension reception, and changes only setting variables in a single receiver structure so as to implement multi-mode reception, MIMO reception, bandwidth extension reception, and/or simultaneous multi-mode operation, such that complexity of the receiver, development cost, and power consumption can be reduced.
摘要翻译：数字RF接收机根据用于多模式接收，MIMO接收和带宽扩展接收的模式和频带不使用单独的接收机，并且仅改变单个接收机结构中的设置变量以便实现多模式接收， MIMO接收，带宽扩展接收和/或同时多模式操作，从而可以减少接收机的复杂性，开发成本和功耗。

9. 发明授权

US09276800B2 Single frequency synthesizer based FDD transceiver 有权
标题翻译：基于单频合成器的FDD收发器
公开(公告)号：US09276800B2
公开(公告)日：2016-03-01
申请号：US13608677
申请日：2012-09-10
申请人： Hyun Ho Boo , Seon-Ho Han , Jang Hong Choi , Ik Soo Eo , Hyun Kyu Yu
发明人： Hyun Ho Boo , Seon-Ho Han , Jang Hong Choi , Ik Soo Eo , Hyun Kyu Yu
IPC分类号： H04J1/02 , H04L27/38 , H04L27/20 , H04L27/233 , H04L27/36 , H04B1/00
CPC分类号： H04L27/3836 , H04B1/0007 , H04L27/206 , H04L27/2092 , H04L27/2332 , H04L27/362 , H04L27/3854
摘要： The present invention relates to a single frequency synthesizer based FDD transceiver. A single frequency synthesizer generates and provides a carrier frequency so that frequency up-conversion and frequency down-conversion can be performed at the time of transmission and reception. Accordingly, the area, power consumption, and design complexity of the entire system can be reduced, and the performance of the system can be improved.
摘要翻译：本发明涉及一种基于单频合成器的FDD收发器。单个频率合成器产生并提供载波频率，使得可以在发送和接收时执行上变频和下变频。因此，可以降低整个系统的面积，功耗和设计复杂性，并且可以提高系统的性能。

10. 发明授权

US5974102A Synchronizing circuit 失效
标题翻译：同步电路
公开(公告)号：US5974102A
公开(公告)日：1999-10-26
申请号：US929692
申请日：1997-09-15
申请人： Ik Soo Eo , Kwang Il Yeon , In Gi Lim
发明人： Ik Soo Eo , Kwang Il Yeon , In Gi Lim
IPC分类号： H03K19/003 , G06F5/06 , H04L7/00 , H04L7/02
CPC分类号： H04L7/02 , G06F5/06 , H04L7/0008
摘要： In case microcontroller and digital signal processing blocks are used together in one chip, there has been a problem in which the synchronization of the clocks are not consistent with each other when sending a signal from one block to another. In addition, when a reference clock is activated during a change of input signal, an incomplete interval has occurred. Accordingly, in order to solve the above mentioned problem, the present invention discloses a synchronizing circuit which uses a latch circuit("RS") consisted of NAND gates to synchronize an asynchronous input data and a reference clock, thereby solving the problem in which an incomplete interval occurs.
摘要翻译：在单片机和数字信号处理块在一个芯片中一起使用的情况下，存在当从一个块向另一个块发送信号时时钟的同步彼此不一致的问题。另外，当在输入信号变化期间激活参考时钟时，发生了不完整的间隔。因此，为了解决上述问题，本发明公开了一种使用由NAND门构成的锁存电路（“RS”）同步异步输入数据和参考时钟的同步电路，由此解决了不完整间隔发生。

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