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1. 发明申请

US20080238548A1 Differential feedback amplifier circuit with cross coupled capacitors 失效
标题翻译：具有交叉耦合电容器的差分反馈放大器电路
公开(公告)号：US20080238548A1
公开(公告)日：2008-10-02
申请号：US11980708
申请日：2007-10-31
申请人： Tung-Ming Su , Chun Che Lin
发明人： Tung-Ming Su , Chun Che Lin
IPC分类号： H03F3/45
CPC分类号： H03F3/45179 , H03F1/3211 , H03F1/483 , H03F2200/36 , H03F2203/45018 , H03F2203/45134 , H03F2203/45288 , H03F2203/45296 , H03F2203/45318 , H03F2203/45528 , H03F2203/45722
摘要： The present invention relates to a differential feedback amplifier circuit with cross coupled capacitors. Wherein, the first and second input terminals of a source follower are respectively coupled to the first and second output terminals of a differential amplifier, and a resistor is respectively coupled between the first output terminal of the source follower and the first input terminal of the differential amplifier and between the second output terminal of the source follower and the second input terminal of the differential amplifier in order to form a feedback loop. In addition, a capacitor is respectively coupled between the first end current source gate of the source follower and the second input terminal of the source follower and between the second end current source gate of the source follower and the first input terminal of the source follower, so as to improve the circuit gain and bandwidth.
摘要翻译：本发明涉及一种具有交叉耦合电容器的差分反馈放大器电路。其中，源极跟随器的第一和第二输入端分别耦合到差分放大器的第一和第二输出端子，并且电阻器分别耦合在源极跟随器的第一输出端子和差分放大器的第一输入端子之间放大器和源极跟随器的第二输出端子和差分放大器的第二输入端之间，以形成反馈回路。此外，电容器分别耦合在源极跟随器的第一端电流源极和源极跟随器的第二输入端之间以及源极跟随器的第二端部电流源极和源极跟随器的第一输入端之间，从而提高电路的增益和带宽。

2. 发明授权

US07180553B2 Dual mode television tuner capable of processing both digital and satellite television signals and method thereof 有权
标题翻译：能够处理数字和卫星电视信号的双模式电视调谐器及其方法
公开(公告)号：US07180553B2
公开(公告)日：2007-02-20
申请号：US10707520
申请日：2003-12-19
申请人： Tung-Ming Su
发明人： Tung-Ming Su
IPC分类号： H04N5/44
CPC分类号： H03D7/165
摘要： A television receiver includes a digital TV preamp for amplifying a received RF signal within a first frequency range, a satellite TV preamp for amplifying the received RF signal within a second frequency range, a first mixer having inputs coupled to the output of either the digital or satellite TV preamp according to a mode selection signal, a digital TV band-pass filter for filtering the output of the first mixer centered at a first center frequency being selectively coupled to the output of the first mixer according to the mode selection signal, a satellite TV band-pass filter for filtering the output of the first mixer centered at a second center frequency being selectively coupled to the output of the first mixer according to the mode selection signal, and a second mixer stage having inputs coupled to the output of the digital TV filter stage and the satellite TV filter stage.
摘要翻译：电视接收机包括用于放大在第一频率范围内的接收的RF信号的数字电视前置放大器，用于在第二频率范围内放大所接收的RF信号的卫星TV前置放大器，具有耦合到数字或卫星电视前置放大器，根据模式选择信号的数字TV带通滤波器，用于根据模式选择信号对以第一中心频率为中心的第一混频器的输出进行滤波，选择性地耦合到第一混频器的输出;卫星 TV频带滤波器，用于根据模式选择信号对以第二中心频率为中心的第一混频器的输出进行滤波，选择性地耦合到第一混频器的输出;以及第二混频器级，具有耦合到数字电视滤镜舞台和卫星电视滤镜舞台。

3. 发明授权

US07138879B2 Injection-locked frequency divider and frequency dividing method thereof 有权
标题翻译：注入锁定分频器及其分频方法
公开(公告)号：US07138879B2
公开(公告)日：2006-11-21
申请号：US10905054
申请日：2004-12-13
申请人： Tung-Ming Su
发明人： Tung-Ming Su
IPC分类号： H03B1/00
CPC分类号： H03B19/14 , H03K3/0315 , H03K3/0322 , H03K3/354 , H03L7/24
摘要： An injection-locked frequency divider includes a selecting module for generating a control signal; a biasing module coupled to the selecting module, for receiving an original signal and generating a biasing signal according to the control signal; and an oscillating module coupled to the biasing module, for receiving the biasing signal to generate a target signal. A ratio exists between the frequency of the target signal and the frequency of the original signal.
摘要翻译：注入锁定分频器包括用于产生控制信号的选择模块; 耦合到所述选择模块的偏置模块，用于接收原始信号并根据所述控制信号产生偏置信号; 以及耦合到偏置模块的振荡模块，用于接收偏置信号以产生目标信号。目标信号的频率与原始信号的频率之间存在比例。

4. 发明授权

US07120413B2 Television tuner and method of processing a received RF signal 有权
标题翻译：电视调谐器和处理所接收的RF信号的方法
公开(公告)号：US07120413B2
公开(公告)日：2006-10-10
申请号：US10708060
申请日：2004-02-06
申请人： Liang-Hui Lee , Dsun-Chie Twu , Tung-Ming Su
发明人： Liang-Hui Lee , Dsun-Chie Twu , Tung-Ming Su
IPC分类号： H04B1/06
CPC分类号： H03D7/165
摘要： A television (TV) tuner includes a first mixer for mixing a received RF signal with a first local oscillator signal to produce an intermediate frequency signal, a second mixer for mixing the intermediate frequency signal with a second local oscillator signal for producing an in-phase baseband output signal, a third mixer for mixing the intermediate frequency signal with a third local oscillator signal for producing a quadrature-phase baseband output signal, the third local oscillator signal being the second local oscillator signal phase delayed, and a single phase locked loop (PLL) coupled to the first mixer and the second mixer unit for generating the first local oscillator signal and the second local oscillator signal according to a selected channel in the received RF signal.
摘要翻译：电视（TV）调谐器包括：第一混频器，用于将接收到的RF信号与第一本地振荡器信号混合以产生中频信号;第二混频器，用于将中频信号与第二本地振荡器信号混频以产生同相基带输出信号，第三混频器，用于将中频信号与用于产生正交相位基带输出信号的第三本地振荡器信号混合，作为第二本地振荡器信号相位的第三本地振荡器信号被延迟，以及单个锁相环（ PLL），其耦合到第一混频器和第二混频器单元，用于根据所接收的RF信号中的选定信道产生第一本地振荡器信号和第二本机振荡器信号。

5. 发明授权

US07262815B2 Harmonic mixer based television tuner and method of processing a received RF signal 有权
标题翻译：基于谐波混频器的电视调谐器和处理所接收的RF信号的方法
公开(公告)号：US07262815B2
公开(公告)日：2007-08-28
申请号：US10707319
申请日：2003-12-04
申请人： Tung-Ming Su
发明人： Tung-Ming Su
IPC分类号： H04N5/50
CPC分类号： H03D7/165
摘要： A first local oscillator operating at a first frequency provides a first reference signal and a second reference signal. The second reference signal is the first reference signal phase shifted by 90 degrees. A first harmonic mixer has inputs coupled to a received RF signal, the first reference signal, and the second reference signal. A band-pass filter is coupled to an output of the first harmonic mixer. A second local oscillator operates at a second frequency and provides a third, a fourth, a fifth, and a sixth reference signal, which are phase shifted by 0 degrees, 45 degrees, 90 degrees, and 135 degrees, respectively. A second harmonic mixer has inputs coupled to an output of the band-pass filter, the third reference signal, and the fifth reference signal. A third harmonic mixer has inputs coupled to the output of the band-pass filter, the fourth reference signal, and the sixth reference signal.
摘要翻译：以第一频率工作的第一本地振荡器提供第一参考信号和第二参考信号。第二参考信号是偏移90度的第一参考信号相位。第一谐波混频器具有耦合到接收的RF信号，第一参考信号和第二参考信号的输入。带通滤波器耦合到第一谐波混频器的输出端。第二本机振荡器以第二频率工作，并提供分别相移0度，45度，90度和135度的第三，第四，第五和第六参考信号。二次谐波混频器具有耦合到带通滤波器，第三参考信号和第五参考信号的输出的输入。三次谐波混频器具有耦合到带通滤波器的输出，第四参考信号和第六参考信号的输入。

6. 发明授权

US07078972B2 Linear decibel-scale variable gain amplifier 有权
标题翻译：线性分贝式可变增益放大器
公开(公告)号：US07078972B2
公开(公告)日：2006-07-18
申请号：US10709197
申请日：2004-04-20
申请人： Ying-Yao Lin , Chao-Cheng Lee , Tung-Ming Su
发明人： Ying-Yao Lin , Chao-Cheng Lee , Tung-Ming Su
IPC分类号： H03F3/45
CPC分类号： H03F3/45085 , H03F2203/45566 , H03F2203/45702 , H03G1/0023 , H03G7/06
摘要： A linear decibel-scale variable gain amplifier includes an amplifying stage for generating an output voltage according to a differential input voltage, and a gain-controlling stage for outputting a gain-controlling voltage to the amplifying stage according to a first controlling voltage and a second controlling voltage. A voltage gain of the linear decibel-scale variable gain amplifier is inversely proportional to a simple exponential function, and the value of the simple exponential function is determined by the difference between the first controlling voltage and the second controlling voltage. The value of the voltage gain is unaffected by changes of the thermal voltage.
摘要翻译：线性分贝尺度可变增益放大器包括用于根据差分输入电压产生输出电压的放大级，以及用于根据第一控制电压向放大级输出增益控制电压的增益控制级，第二控制电压。线性分贝尺度可变增益放大器的电压增益与简单的指数函数成反比，简单指数函数的值由第一控制电压和第二控制电压之间的差确定。电压增益的值不受热电压变化的影响。

7. 发明授权

US07075368B2 Linear-in-decibel variable gain amplifier 有权
标题翻译：线性分贝可变增益放大器
公开(公告)号：US07075368B2
公开(公告)日：2006-07-11
申请号：US10709198
申请日：2004-04-20
申请人： Ying-Yao Lin , Tung-Ming Su , Chao-Cheng Lee
发明人： Ying-Yao Lin , Tung-Ming Su , Chao-Cheng Lee
IPC分类号： H03F3/45
CPC分类号： H03G7/001 , H03F3/45085 , H03F2203/45652 , H03F2203/45702 , H03G1/0023 , H03G7/06
摘要： A variable gain amplifier having a linear decibel-scale gain comprises an amplifying stage for generating an output voltage according to a differential input voltage, and a gain-controlling stage for outputting a gain-controlling voltage to the amplifying stage according to a first controlling voltage and a second controlling voltage. A voltage gain of the variable gain amplifier is inversely proportional to a simple exponential function, and the value of the simple exponential function is determined by the difference between the first controlling voltage and the second controlling voltage.
摘要翻译：具有线性分贝尺度增益的可变增益放大器包括用于根据差分输入电压产生输出电压的放大级，以及用于根据第一控制电压向放大级输出增益控制电压的增益控制级和第二控制电压。可变增益放大器的电压增益与简单的指数函数成反比，简单指数函数的值由第一控制电压和第二控制电压之间的差确定。

8. 发明授权

US06999747B2 Passive harmonic switch mixer 有权
标题翻译：无源谐波开关混频器
公开(公告)号：US06999747B2
公开(公告)日：2006-02-14
申请号：US10604018
申请日：2003-06-22
申请人： Tung-Ming Su
发明人： Tung-Ming Su
IPC分类号： H04B1/26 , H04B1/28
CPC分类号： H03D7/165
摘要： A passive harmonic switch mixer is shown that is immune to self mixing of the local oscillator greatly reducing leakage noise, pulling noise, and flicker noise when used in a direct conversion receiver or direct conversion transmitter circuit. The passive harmonic switch mixermixes an input signal received on an input port with an in-phase oscillator signal and a quadrature-phase oscillator signal and outputs an output signal on an output port. Because the quadrature-phase oscillator signal is the in-phase oscillator signal phase shifted by 90 Â°, the passive harmonic switch mixer operates with a local oscillator running at half the frequency of the carrier frequency of an RF signal. Additionally, because the passive harmonic switch mixer has no active components, the DC current passing through each switch device is reduced and the associated flicker noise of the mixer is also greatly reduced.
摘要翻译：显示了一种无源谐波开关混频器，在直接转换接收机或直接转换发射机电路中使用时，无需本地振荡器的自混合，可大大降低泄漏噪声，拉噪和闪烁噪声。无源谐波开关将在输入端口接收的输入信号与同相振荡器信号和正交相位振荡器信号混频，并在输出端口输出输出信号。由于正交相位振荡器信号是同相振荡器信号相移90°，无源谐波开关混频器的工作原理是以RF信号载波频率的一半运行。此外，由于无源谐波开关混频器没有有源元件，所以通过每个开关器件的直流电流减小，并且混频器的相关闪烁噪声也大大降低。

9. 发明申请

US20050017807A1 LINEAR-IN-DECIBEL VARIABLE GAIN AMPLIFIER 有权
标题翻译：线性可变增益放大器
公开(公告)号：US20050017807A1
公开(公告)日：2005-01-27
申请号：US10708202
申请日：2004-02-16
申请人： Ying-Yao Lin , Tung-Ming Su
发明人： Ying-Yao Lin , Tung-Ming Su
IPC分类号： H03F3/45 , H03G1/00
CPC分类号： H03F3/45 , H03G1/0023
摘要： A linear-in-decibel variable gain amplifier used for receiving an input voltage and generating an output voltage according to a first controlling voltage and a second controlling voltage. A voltage gain, that is, the ratio between the output voltage and the input voltage, has a denominator that is a pure exponential function, and the value of the pure exponential function is determined by the first controlling voltage and second controlling voltage.
摘要翻译：用于接收输入电压并根据第一控制电压和第二控制电压产生输出电压的线性分贝可变增益放大器。电压增益，即输出电压与输入电压之比，具有纯指数函数的分母，纯指数函数的值由第一控制电压和第二控制电压决定。

10. 发明申请

US20050248410A1 INJECTION-LOCKED FREQUENCY DIVIDER AND FREQUENCY DIVIDING METHOD THEREOF 有权
标题翻译：注射锁频分频器及其分频方法
公开(公告)号：US20050248410A1
公开(公告)日：2005-11-10
申请号：US10905054
申请日：2004-12-13
申请人： Tung-Ming SU
发明人： Tung-Ming SU
IPC分类号： H03B19/14 , H03K3/03 , H03K3/354 , H03L7/00 , H03L7/16 , H03L7/24
CPC分类号： H03B19/14 , H03K3/0315 , H03K3/0322 , H03K3/354 , H03L7/24
摘要： An injection-locked frequency divider includes a selecting module for generating a control signal; a biasing module coupled to the selecting module, for receiving an original signal and generating a biasing signal according to the control signal; and an oscillating module coupled to the biasing module, for receiving the biasing signal to generate a target signal. A ratio exists between the frequency of the target signal and the frequency of the original signal.
摘要翻译：注入锁定分频器包括用于产生控制信号的选择模块; 耦合到所述选择模块的偏置模块，用于接收原始信号并根据所述控制信号产生偏置信号; 以及耦合到偏置模块的振荡模块，用于接收偏置信号以产生目标信号。目标信号的频率与原始信号的频率之间存在比例。

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