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1. 发明授权

US08441297B2 PMOS resistor 有权
标题翻译： PMOS电阻
公开(公告)号：US08441297B2
公开(公告)日：2013-05-14
申请号：US13332578
申请日：2011-12-21
申请人： Seunghyun Jang , Jae Ho Jung
发明人： Seunghyun Jang , Jae Ho Jung
IPC分类号： H03L5/00
CPC分类号： H03H11/53
摘要： Provided is a PMOS resistor. The PMOS resistor includes a PMOS transistor pair, a switching unit, and a negative feedback unit. The PMOS transistor pair is symmetrically connected between first and second nodes. The switching unit compares a voltage of the first node and a voltage of the second node to output one of the voltages of the first and second nodes. The negative feedback unit receives an output of the switching unit to control a current which flows in the PMOS transistor pair, for maintaining a constant resistance value.
摘要翻译：提供一个PMOS电阻。 PMOS电阻器包括PMOS晶体管对，开关单元和负反馈单元。 PMOS晶体管对对称地连接在第一和第二节点之间。开关单元将第一节点的电压和第二节点的电压进行比较，以输出第一和第二节点的电压之一。负反馈单元接收开关单元的输出以控制在PMOS晶体管对中流动的电流，以保持恒定的电阻值。

2. 发明授权

US08519786B2 Variable gain amplifier with fixed bandwidth 有权
标题翻译：具有固定带宽的可变增益放大器
公开(公告)号：US08519786B2
公开(公告)日：2013-08-27
申请号：US13296626
申请日：2011-11-15
申请人： Seunghyun Jang , Jae Ho Jung
发明人： Seunghyun Jang , Jae Ho Jung
IPC分类号： H03F1/34 , H03G3/20
CPC分类号： H03G1/0088
摘要： Provided is a variable gain amplifier. The variable gain amplifier includes an operational amplifier, a variable feedback impedance unit, a variable compensation impedance unit, and a variable current source. The variable feedback impedance unit is connected between an inverting input terminal and output terminal of the operational amplifier, and has a feedback impedance value which varies for gain control. The variable compensation impedance unit is connected to the inverting input terminal, and has a compensation impedance value which varies in response to change of the feedback impedance value for maintaining a constant feedback factor. The variable current source is connected to the inverting input terminal, and supplies an output current, which varies in response to change of the compensation impedance value, to the variable compensation impedance unit.
摘要翻译：提供了可变增益放大器。可变增益放大器包括运算放大器，可变反馈阻抗单元，可变补偿阻抗单元和可变电流源。可变反馈阻抗单元连接在运算放大器的反相输入端子和输出端子之间，并具有增益控制变化的反馈阻抗值。可变补偿阻抗单元连接到反相输入端，并且具有响应于用于维持恒定反馈因子的反馈阻抗值的变化而变化的补偿阻抗值。可变电流源连接到反相输入端，并将响应于补偿阻抗值的变化而变化的输出电流提供给可变补偿阻抗单元。

3. 发明授权

US08102209B2 CMOS variable gain amplifier 有权
标题翻译： CMOS可变增益放大器
公开(公告)号：US08102209B2
公开(公告)日：2012-01-24
申请号：US12878307
申请日：2010-09-09
申请人： Seunghyun Jang , Kwang-Chun Lee
发明人： Seunghyun Jang , Kwang-Chun Lee
IPC分类号： H03F3/45
CPC分类号： H03G1/0029 , H03F3/45188 , H03F3/4565 , H03F2203/45074 , H03F2203/45082 , H03F2203/45302 , H03F2203/45414 , H03G7/001
摘要： A complementary metal-oxide semiconductor (CMOS) variable gain amplifier includes: a cascode amplifier including a common source field effect transistor and a common gate field effect transistor in a cascode structure; a first current generation unit connected in parallel to a drain of the common gate field effect transistor and configured to vary transconductance of the cascode amplifier; a second current generation unit connected to a common source of the cascode amplifier and configured to control a bias current of the cascode amplifier; a current control unit configured to generate a current control signal for the first and second current generation units; and a load stage connected in series to a drain of the cascode amplifier and configured to output an output current, which is varied by the overall transconductance of the cascode amplifier, as a differential output voltage.
摘要翻译：互补金属氧化物半导体（CMOS）可变增益放大器包括：共源共栅放大器，包括共源极场效应晶体管和共栅型场效应晶体管; 与公共栅极场效应晶体管的漏极并联连接并被配置为改变共源共栅放大器的跨导的第一电流产生单元; 连接到所述共射共基放大器的共同源并被配置为控制所述共源共栅放大器的偏置电流的第二电流产生单元; 电流控制单元，被配置为产生用于所述第一和第二电流产生单元的电流控制信号; 以及与串联放大器的漏极串联连接的负载级，其被配置为输出由串联放大器的整个跨导变化的输出电流作为差分输出电压。

4. 发明授权

US08590501B1 Variable intake system and method 失效
标题翻译：可变进气系统和方法
公开(公告)号：US08590501B1
公开(公告)日：2013-11-26
申请号：US12885590
申请日：2010-09-20
申请人： Taehwan Kim , Seunghyun Jang
发明人： Taehwan Kim , Seunghyun Jang
IPC分类号： F02M35/10
CPC分类号： F02B27/0284 , F02B27/0263 , F02D9/16 , Y02T10/146
摘要： An intake manifold assembly is disclosed that utilizes a barrel valve apparatus comprised of segments and connectors. The barrel valve apparatus and its housing component can be tapered and flexible. A protrusion such as a draft can be used to seal the performance of the barrel valve apparatus without a seal. Openings in the barrel valve apparatus can possess an integrated bellmouth shape.
摘要翻译：公开了一种使用由段和连接器组成的桶式阀装置的进气歧管组件。桶形阀装置及其壳体部件可以是锥形和柔性的。可以使用诸如通风的突起来密封没有密封的桶形阀装置的性能。桶形阀装置中的开口可以具有一体式的喇叭形状。

5. 发明授权

US08013651B2 Signal converter for wireless communication and receiving device using the same 失效
标题翻译：用于使用其的无线通信和接收装置的信号转换器
公开(公告)号：US08013651B2
公开(公告)日：2011-09-06
申请号：US12580360
申请日：2009-10-16
申请人： Seung Sik Lee , Bong Hyuk Park , Seunghyun Jang , Sangsung Choi , Changwan Kim
发明人： Seung Sik Lee , Bong Hyuk Park , Seunghyun Jang , Sangsung Choi , Changwan Kim
IPC分类号： H03H11/16
CPC分类号： H03D7/1441 , H03D7/1458 , H03D2200/0023 , H03D2200/0043 , H03D2200/0084
摘要： The present invention relates to a signal converting device and receiving device in a wireless communication system. The receiving device of the wireless communication system includes a differential signal converter for receiving a single ended radio frequency signal and converting it into a differential radio frequency signal, and a frequency down converter for down converting the differential radio frequency signal to down frequency signal.
摘要翻译：本发明涉及无线通信系统中的信号转换装置和接收装置。无线通信系统的接收装置包括用于接收单端射频信号并将其转换为差分射频信号的差分信号转换器，以及用于将差分射频信号下变频为降频信号的降频转换器。

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