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1. 发明授权

US06605996B2 Automatically gain controllable linear differential amplifier using variable degeneration resistor 有权
标题翻译：使用可变退化电阻自动增益可控线性差分放大器
公开(公告)号：US06605996B2
公开(公告)日：2003-08-12
申请号：US10039542
申请日：2001-12-31
申请人： Hyun Kyu Yu , Sang-Gug Lee , Mun Yang Park , Seong-Do Kim , Yong-Sik Youn , Seon-Ho Han , Nam-Soo Kim
发明人： Hyun Kyu Yu , Sang-Gug Lee , Mun Yang Park , Seong-Do Kim , Yong-Sik Youn , Seon-Ho Han , Nam-Soo Kim
IPC分类号： H03F345
CPC分类号： H03G1/007 , H03F3/45179 , H03F2203/45492 , H03G1/0023
摘要： An automatically gain controllable linear differential amplifier using a variable degeneration resistor is disclosed. The linear differential amplifier includes an input end, a bias current source, a load unit, a first MOS transistor and a second MOS transistor. The linear differential amplifiers of the present invention can control an amplifying gain according to an input signal and improve linearity IIP3 without needing additional power consumption caused by improving the linearity. The automatically gain controllable linear differential amplifier uses NMOS/PMOS transistor so an integration process of the amplifier can be implemented more conveniently and efficiently.
摘要翻译：公开了一种使用可变退化电阻的自动增益可控线性差分放大器。线性差分放大器包括输入端，偏置电流源，负载单元，第一MOS晶体管和第二MOS晶体管。本发明的线性差分放大器可以根据输入信号控制放大增益，并提高线性度IIP3，而不需要通过提高线性度而引起的附加功耗。自动增益可控线性差分放大器使用NMOS / PMOS晶体管，因此可以更方便，高效地实现放大器的集成过程。

2. 发明授权

US06615398B2 Method for dividing ROM and DDFS using the same method 有权
公开(公告)号：US06615398B2
公开(公告)日：2003-09-02
申请号：US10017315
申请日：2001-12-18
申请人： Hyun Kyu Yu , Seon-Ho Han , Mun Yang Park , Seong-Do Kim , Yong-Sik Youn , Lee-Sup Kim , Ki-Hyuk Sung , Byung-Do Yang , Young-Jun Kim
发明人： Hyun Kyu Yu , Seon-Ho Han , Mun Yang Park , Seong-Do Kim , Yong-Sik Youn , Lee-Sup Kim , Ki-Hyuk Sung , Byung-Do Yang , Young-Jun Kim
IPC分类号： G06F1750
CPC分类号： G06F1/0356 , G06F1/0328 , G06F2101/04 , G11C17/00
摘要： The present invention relates to a ROM division method for reducing the size of a ROM in a direct digital frequency synthesizer (DDFS), which is used to synthesize a frequency in a communication system requiring fast frequency conversion. A ROM consuming most energy in the system, a modified Nicholas architecture is brought forth to reduce the size of ROM. In this modified Nicholas architecture, a ROM is divided into coarse ROM and fine ROM to convert phase to sine value. The present invention divides the coarse ROM and the fine ROM into quantized ROM and error ROM respectively. Then, value stored in each ROM is segmented in certain intervals and the minimum quantized value in each of the section is stored in the quantized ROM, while the difference between the original ROM value and the quantized ROM value is stored in the error ROM. This way, the size of a ROM can be reduced. Phase value inputted in a DDFS, a sine value is calculated by adding the four ROM values, i.e., coarse-quantized ROM, coarse-error ROM, fine-quantized ROM and fine-error ROM.

3. 发明申请

US20110150138A1 HIGH LINEARITY MIXER AND DIRECT CONVERSION RECEIVER USING THE SAME 审中-公开
标题翻译：高线性混合器和直接转换接收器
公开(公告)号：US20110150138A1
公开(公告)日：2011-06-23
申请号：US12970899
申请日：2010-12-16
申请人： Jung Woo PARK , Young Jae Lee , Hyun Kyu Yu , Byung Hun Min , Seong Do Kim , Hoai Nam Nguyen , Sang Gug Lee
发明人： Jung Woo PARK , Young Jae Lee , Hyun Kyu Yu , Byung Hun Min , Seong Do Kim , Hoai Nam Nguyen , Sang Gug Lee
IPC分类号： H03K9/00
CPC分类号： H04L25/08 , H03D7/1441 , H03D7/1458 , H03H19/004
摘要： A direct conversion receiver includes: a high linearity mixer device including a sampler unit charge-sampling an input current according to a sampling frequency, and a buffer unit receiving an output signal from the sampler unit while having a low input impedance, amplifying the received signal, and outputting a current signal; and a filter device decimating an output signal from the mixer device and FIR-filtering the decimated signal.
摘要翻译：直接转换接收机包括：高线性混频器装置，包括：采样单元，根据采样频率对输入电流进行采样;以及缓冲单元，其具有低输入阻抗，从采样器单元接收输出信号，放大接收信号，并输出电流信号; 以及滤波器装置对来自混频器装置的输出信号进行抽取，并对抽取的信号进行FIR滤波。

4. 发明申请

US20130063199A1 PROGRAMMABLE COMPLEX MIXER 审中-公开
标题翻译：可编程复合混合器
公开(公告)号：US20130063199A1
公开(公告)日：2013-03-14
申请号：US13615423
申请日：2012-09-13
申请人： Seon-Ho HAN , Hyun Ho Boo , Mun Yang Park , Jang Hong Choi , Hyun Kyu Yu
发明人： Seon-Ho HAN , Hyun Ho Boo , Mun Yang Park , Jang Hong Choi , Hyun Kyu Yu
IPC分类号： G06G7/14
CPC分类号： H03D7/165
摘要： Disclosed is a programmable complex mixer. In accordance with the embodiments of the present invention, it is possible to control an output by programming paths and signs of internal signals in a complex mixer to reduce a processing bandwidth, power consumption, and a chip area in a transceiver, thereby improving performance of a transceiver.
摘要翻译：公开了一种可编程复合混合器。根据本发明的实施例，可以通过在复合混频器中编程内部信号的路径和符号来控制输出，以减少收发器中的处理带宽，功耗和芯片面积，从而提高收发器

5. 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。

6. 发明申请

US20130156141A1 DIGITAL RADIO FREQUENCY (RF) RECEIVER 有权
标题翻译：数字无线电频率（RF）接收机
公开(公告)号：US20130156141A1
公开(公告)日：2013-06-20
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： H04B1/10
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。

7. 发明授权

US08344772B2 Time-to-digital converter and all digital phase-locked loop including the same 有权
标题翻译：时间到数字转换器和所有数字锁相环包括相同的
公开(公告)号：US08344772B2
公开(公告)日：2013-01-01
申请号：US12956498
申请日：2010-11-30
申请人： Ja Yol Lee , Seon Ho Han , Mi Jeong Park , Jang Hong Choi , Seong Do Kim , Hyun Kyu Yu
发明人： Ja Yol Lee , Seon Ho Han , Mi Jeong Park , Jang Hong Choi , Seong Do Kim , Hyun Kyu Yu
IPC分类号： H03L7/06
CPC分类号： H03L7/095 , G04F10/005 , H03L7/085 , H03L7/103 , H03L2207/50
摘要： An all digital phase-locked loop (ADPLL) includes: a phase counter accumulating a frequency setting word value and the phase of a digitally controlled oscillator (DCO) clock and detecting a fine phase difference between a reference clock and a retimed clock; a phase detector detecting a digital phase error value compensating for a phase difference between the frequency setting word value and the DCO clock according to the fine phase difference to detect a digital phase error value; a digital loop filter filtering the digital phase error value and controlling PLL operational characteristics; a lock detector generating a lock indication signal according an output of the digital loop filter; a digitally controlled oscillator varying the frequency of the DCO clock according to the output from the digital loop filter; and a retimed clock generator generating the retimed clock by retiming the DCO clock at a low frequency.
摘要翻译：全数字锁相环（ADPLL）包括：相位计数器累积频率设定字值和数字控制振荡器（DCO）时钟的相位，并检测参考时钟和重新定时钟之间的精细相位差; 相位检测器，根据所述精细相位差检测补偿所述频率设定字值与所述DCO时钟之间的相位差的数字相位误差值，以检测数字相位误差值; 数字环路滤波器滤除数字相位误差值并控制PLL的操作特性; 锁定检测器，根据数字环路滤波器的输出产生锁定指示信号; 数字控制振荡器根据数字环路滤波器的输出改变DCO时钟的频率; 以及重新计时的时钟发生器，通过以低频再定时DCO时钟产生重定时钟。

8. 发明申请

US20110148490A1 TIME-TO-DIGITAL CONVERTER AND ALL DIGITAL PHASE-LOCKED LOOP INCLUDING THE SAME 有权
标题翻译：时数转换器和所有数字相位锁定环路
公开(公告)号：US20110148490A1
公开(公告)日：2011-06-23
申请号：US12956498
申请日：2010-11-30
申请人： Ja Yol Lee , Seon Ho Han , Mi Jeong Park , Jang Hong Choi , Seong Do Kim , Hyun Kyu Yu
发明人： Ja Yol Lee , Seon Ho Han , Mi Jeong Park , Jang Hong Choi , Seong Do Kim , Hyun Kyu Yu
IPC分类号： H03L7/08 , H03M1/50
CPC分类号： H03L7/095 , G04F10/005 , H03L7/085 , H03L7/103 , H03L2207/50
摘要： An all digital phase-locked loop (ADPLL) includes: a phase counter accumulating a frequency setting word value and the phase of a digitally controlled oscillator (DCO) clock and detecting a fine phase difference between a reference clock and a retimed clock; a phase detector detecting a digital phase error value compensating for a phase difference between the frequency setting word value and the DCO clock according to the fine phase difference to detect a digital phase error value; a digital loop filter filtering the digital phase error value and controlling PLL operational characteristics; a lock detector generating a lock indication signal according an output of the digital loop filter; a digitally controlled oscillator varying the frequency of the DCO clock according to the output from the digital loop filter; and a retimed clock generator generating the retimed clock by retiming the DCO clock at a low frequency.
摘要翻译：全数字锁相环（ADPLL）包括：相位计数器累积频率设定字值和数字控制振荡器（DCO）时钟的相位，并检测参考时钟和重新定时钟之间的精细相位差; 相位检测器，根据所述精细相位差检测补偿所述频率设定字值与所述DCO时钟之间的相位差的数字相位误差值，以检测数字相位误差值; 数字环路滤波器滤除数字相位误差值并控制PLL的操作特性; 锁定检测器，根据数字环路滤波器的输出产生锁定指示信号; 数字控制振荡器根据数字环路滤波器的输出来改变DCO时钟的频率; 以及重新计时的时钟发生器，通过以低频再定时DCO时钟产生重定时钟。

9. 发明授权

US08542773B2 Digital RF converter, digital RF modulator and transmitter including the same 有权
标题翻译：数字RF转换器，数字RF调制器和发射机包括相同
公开(公告)号：US08542773B2
公开(公告)日：2013-09-24
申请号：US12968731
申请日：2010-12-15
申请人： Hyun Kyu Yu , Jang Hong Choi , Hyun Ho Boo , Pil Jae Park , Mun Yang Park , Seong Do Kim , Sun Bo Shim , Song Cheol Hong
发明人： Hyun Kyu Yu , Jang Hong Choi , Hyun Ho Boo , Pil Jae Park , Mun Yang Park , Seong Do Kim , Sun Bo Shim , Song Cheol Hong
IPC分类号： H04L27/20 , H03C3/00 , H03M3/00 , H03M1/66
CPC分类号： H03M1/68 , H03M1/687 , H03M1/745 , H03M1/747 , H03M3/50
摘要： A digital RF converter, a digital RF modulator, and a transmitter are provided. The digital RF converter includes a delta-sigma modulated bits (DSMB) sub-block that generates a current magnitude corresponding to least-significant n bits among input signals at a first sampling speed, a least-significant bit (LSB) sub-block that generates a current magnitude corresponding to intermediate k bits among the input signals at a second sampling speed lower than the first sampling speed, and a most-significant bit (MSB) sub block that generates a current magnitude corresponding to most-significant m bits among the inputs signals at the second sampling speed.
摘要翻译：提供数字RF转换器，数字RF调制器和发射器。该数字RF转换器包括一个Δ-Σ调制比特（DSMB）子块，其以第一采样速度在输入信号之间产生对应于最低有效n比特的当前幅度，最低有效位（LSB）子块，以低于第一采样速度的第二采样速度产生对应于输入信号中的中间k位的电流幅度，以及最高有效位（MSB）子块，其产生对应于最高有效m位的当前幅度以第二采样速度输入信号。

10. 发明授权

US08013641B1 Frequency synthesizer including a digital lock detector 有权
标题翻译：频率合成器包括数字锁定检测器
公开(公告)号：US08013641B1
公开(公告)日：2011-09-06
申请号：US13098332
申请日：2011-04-29
申请人： Ja Yol Lee , Seong Do Kim , Mun Yang Park , Cheon Soo Kim , Hyun Kyu Yu
发明人： Ja Yol Lee , Seong Do Kim , Mun Yang Park , Cheon Soo Kim , Hyun Kyu Yu
IPC分类号： H03B21/00
CPC分类号： H03L7/16 , H03L7/095 , H03L7/099 , H03L7/103 , H03L2207/50
摘要： There is provided a digital lock detector and a frequency synthesizer using the same. The digital lock detector includes a comparator unit receiving a plurality of control bits, and generating a bit signal to notice a lock condition of the plurality of control bits; a delay cell block generating a plurality of delay signals based on the bit signal, and outputting a clock signal by combining the bit signal and the plurality of delay signals; and a detection unit detecting a shift time of the clock signal, and generating a lock indication signal according to the detection result.
摘要翻译：提供了数字锁定检测器和使用该锁定检测器的频率合成器。数字锁定检测器包括：接收多个控制位的比较器单元，并产生一个位信号以注意多个控制位的锁定状态; 延迟单元块，其基于所述位信号生成多个延迟信号，并通过组合所述位信号和所述多个延迟信号来输出时钟信号; 以及检测单元，其检测所述时钟信号的移位时间，并根据所述检测结果生成锁定指示信号。

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