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11. 发明授权

US5512862A Oscillator with improved sideband noise 失效
标题翻译：具有改善边带噪声的振荡器
公开(公告)号：US5512862A
公开(公告)日：1996-04-30
申请号：US376615
申请日：1995-01-23
申请人： Branko Avanic , Peter J. Yeh , Leng H. Ooi
发明人： Branko Avanic , Peter J. Yeh , Leng H. Ooi
IPC分类号： H03B1/00 , H03B1/04 , H03B5/18
CPC分类号： H03B5/1847 , H03B2200/0024 , H03B2200/004 , H03B2200/0086 , H03B2200/0088 , H03B2201/0208 , H03B2202/025 , H03B2202/05
摘要： An oscillator (200) with improved sideband noise is disclosed. This improvement is accomplished without affecting the Q or the output power of the oscillator (200). The improvement is realized by increasing the rate of change of reactance over frequency. The increase in the rate of change is realized by placing two transmission lines (208, 210) in close proximity of each other. This increase assures oscillation while minimizing the sideband noise, and providing maximum bandwidth.
摘要翻译：公开了具有改进的边带噪声的振荡器（200）。这种改进是在不影响振荡器（200）的Q或输出功率的情况下完成的。通过提高频率上的电抗变化率来实现改进。通过将两个传输线（208,210）彼此靠近放置来实现变化率的增加。这种增加确保振荡，同时最小化边带噪声，并提供最大带宽。

12. 发明授权

US5313662A Split-ring resonator bandpass filter with adjustable zero 失效
标题翻译：分路环谐振器带通滤波器，可调零
公开(公告)号：US5313662A
公开(公告)日：1994-05-17
申请号：US861360
申请日：1992-03-30
申请人： Leng H. Ooi , Peter J. Yeh , Branko Avanic
发明人： Leng H. Ooi , Peter J. Yeh , Branko Avanic
IPC分类号： H01P1/203 , H04B1/18 , H04B1/16
CPC分类号： H01P1/20381 , H04B1/18
摘要： A bandpass filter, having an input port and an output port, comprises a first microstrip split-ring resonator coupled to input port, and a second microstrip split-ring resonator coupled to the first microstrip split-ring resonator, and coupled to the output port. A lumped or distributed capacitance is disposed between the first microstrip split-ring resonator and the second microstrip split-ring resonator.
摘要翻译：具有输入端口和输出端口的带通滤波器包括耦合到输入端口的第一微带分离环谐振器和耦合到第一微带分离环谐振器的第二微带分离环谐振器，并耦合到输出端口。集中或分布电容设置在第一微带分离环谐振器和第二微带分裂环谐振器之间。

13. 发明授权

US5216378A Switch adaptable radio frequency amplifier 失效
标题翻译：开关适应性射频放大器
公开(公告)号：US5216378A
公开(公告)日：1993-06-01
申请号：US844016
申请日：1992-03-02
申请人： Stephen B. Einbinder , Eric K. Schroeter , Leng H. Ooi
发明人： Stephen B. Einbinder , Eric K. Schroeter , Leng H. Ooi
IPC分类号： H03G3/20 , H03G3/30 , H04B1/40 , H04B1/50
CPC分类号： H04B1/50 , H03G3/3042 , H04B1/40 , H04B1/408
摘要： A radio frequency variable gain amplifier (204) has a plurality of outputs. The amplifier (204) includes a transistor amplifier (330) having a plurality of switchable fixed gain states for amplifying an oscillator signal. The amplifier (204) includes a biasing circuit (302, 306, 312, and 316) for selectively biasing the transistor amplifier (330) to produce the plurality of switchable fixed gain states. The biasing circuit (302, 306, 312, and 316) includes switches (310 and 320) for switching between the switchable fixed gain states of the transistor amplifier (330).
摘要翻译：射频可变增益放大器（204）具有多个输出。放大器（204）包括具有用于放大振荡器信号的多个可切换固定增益状态的晶体管放大器（330）。放大器（204）包括用于选择性地偏置晶体管放大器（330）以产生多个可切换固定增益状态的偏置电路（302,306,312和316）。偏置电路（302,306,312和316）包括用于在晶体管放大器（330）的可切换固定增益状态之间切换的开关（310和320）。

14. 发明授权

US5164690A Multi-pole split ring resonator bandpass filter 失效
标题翻译：多极开环谐振器带通滤波器
公开(公告)号：US5164690A
公开(公告)日：1992-11-17
申请号：US719449
申请日：1991-06-24
申请人： Peter J. Yeh , Branko Avanic , Leng H. Ooi
发明人： Peter J. Yeh , Branko Avanic , Leng H. Ooi
IPC分类号： H01P1/203
CPC分类号： H01P1/20381
摘要： A multipole bandpass filter (40) comprises a first microstrip split-ring resonator (12), having at least a first edge and a second edge, the first edge having a gap (20) therein, and an input. The bandpass filter (40) also comprises a second microstrip split-ring resonator (14), having at least a first edge and a second edge, the second edge of the second microstrip split-ring resonator comprising a gap (26) therein and a balanced output (30, 32). The bandpass filter also includes at least one straight line quasi-combline resonator (22), disposed between the first microstrip split-ring resonator, and the second microstrip split-ring resonator.
摘要翻译：多极带通滤波器（40）包括第一微带分裂环谐振器（12），其具有至少第一边缘和第二边缘，第一边缘在其中具有间隙（20）和输入。带通滤波器（40）还包括具有至少第一边缘和第二边缘的第二微带分裂环谐振器（14），第二微带分裂环谐振器的第二边缘包括其中的间隙（26）和平衡输出（30,32）。带通滤波器还包括设置在第一微带分裂环谐振器和第二微带分离环谐振器之间的至少一个直线准梳状谐振器（22）。

15. 发明授权

US4904964A Voltage control oscillator with modulation compensation 失效
标题翻译：带调制补偿的压控振荡器
公开(公告)号：US4904964A
公开(公告)日：1990-02-27
申请号：US290728
申请日：1988-12-27
申请人： Kwan K. Peng , Leng H. Ooi
发明人： Kwan K. Peng , Leng H. Ooi
IPC分类号： H03B5/12 , H03C3/09 , H03C3/22
CPC分类号： H03C3/0958 , H03B5/1203 , H03B5/1228 , H03B5/1243 , H03B5/1296 , H03C3/225 , H03B2200/0008 , H03B2200/0032 , H03B2200/004 , H03C2200/005 , H03C2200/0079
摘要： An improved voltage controlled oscillator (VCO) is provided whereby the control voltage is utilized for modulation compensation by a modulation compensation network (90). The modulating signal is variably coupled into the voltage controlled oscillator (70) to compensate for the variation in the VCO's gain factor to yield a constant modulation level over a frequency band.
摘要翻译：提供了一种改进的压控振荡器（VCO），由此通过调制补偿网络（90）将控制电压用于调制补偿。调制信号可变地耦合到压控振荡器（70）中以补偿VCO的增益因子的变化，从而在频带上产生恒定的调制电平。

16. 发明授权

US07035364B2 Digital receiver fast frequency and time acquisition system using a single synchronization word and method of using same 失效
标题翻译：数字接收机快速频率和时间采集系统采用单一同步字和使用方法相同
公开(公告)号：US07035364B2
公开(公告)日：2006-04-25
申请号：US09896703
申请日：2001-06-29
申请人： Sumit A. Talwalkar , Vijay Nangia , Leng H. Ooi
发明人： Sumit A. Talwalkar , Vijay Nangia , Leng H. Ooi
IPC分类号： H04L7/00
CPC分类号： H04L27/0014 , H04L7/0004 , H04L7/04 , H04L2027/0036
摘要： A digital receiver fast frequency and time acquisition system (200) for accurately providing both time and frequency synchronization to an incoming data stream with minimal delay to prevent any loss of incoming digital information. The invention provides synchronization with only a single synchronization word and includes a first channel select (CS) filter (204) that filters an incoming digital signal (202). A frame synchronization detector (206) then recognizes the time synchronization word from the first filtered signal. A coarse symbol time estimator (208) is then used for coarsely adjusting the time synchronization of the digital signal from the frame synchronization detector (206) and a fine frequency estimator (210) finely adjusts the frequency of the signal from the coarse symbol time estimator (208) for providing a frequency adjusted signal. A mixer (212) then combines the incoming digital signal with the frequency adjusted signal and provides a time and frequency compensated digital signal. A second CS filter (214) filters the frequency compensated digital signal and a fine symbol time estimator (216) works to determine symbol timing with greater precision. Finally, a symbol detector (218) is used for interpreting the incoming digital signal.
摘要翻译：一种数字接收机快速频率和时间采集系统（200），用于以最小的延迟精确地提供输入数据流的时间和频率同步，以防止输入数字信息的任何丢失。本发明仅提供与单个同步字的同步，并且包括对输入数字信号（202）进行过滤的第一信道选择（CS）滤波器（204）。帧同步检测器（206）然后从第一滤波信号识别时间同步字。然后，粗略的符号时间估计器（208）用于粗略地调整来自帧同步检测器（206）的数字信号的时间同步，并且精细频率估计器（210）精细地调整来自粗略符号时间估计器的信号的频率（208），用于提供频率调整信号。混频器（212）然后将输入的数字信号与频率调整信号组合，并提供时间和频率补偿的数字信号。第二CS滤波器（214）对频率补偿的数字信号进行滤波，精细符号时间估计器（216）用于以更高精度确定符号定时。最后，符号检测器（218）用于解释输入的数字信号。

17. 发明授权

US06801754B2 Intelligent repeater and method to provide increased signaling 有权
标题翻译：智能中继器和提供更多信令的方法
公开(公告)号：US06801754B2
公开(公告)日：2004-10-05
申请号：US09781212
申请日：2002-02-13
申请人： Sumit A. Talwalkar , Vijay Nangia , Leng H. Ooi
发明人： Sumit A. Talwalkar , Vijay Nangia , Leng H. Ooi
IPC分类号： H04B138
CPC分类号： H04B7/155 , H04W28/18 , H04W76/00 , H04W76/10 , H04W88/04
摘要： A system and method are disclosed to provide increased signaling in a communications system. A repeater system is operable to receive and store operating characteristic data from a communications unit, the repeater transmitting at least some of the stored operating characteristic data during a detected break in transmission.
摘要翻译：公开了一种在通信系统中提供增加的信令的系统和方法。中继器系统可操作以从通信单元接收和存储操作特征数据，所述中继器在传输期间检测到中断期间发送所存储的操作特征数据中的至少一些。

18. 发明授权

US5363067A Microstrip assembly 失效
标题翻译：微带组件
公开(公告)号：US5363067A
公开(公告)日：1994-11-08
申请号：US63477
申请日：1993-05-19
申请人： Mark A. Crandall , William J. Wingfield , Leng H. Ooi
发明人： Mark A. Crandall , William J. Wingfield , Leng H. Ooi
IPC分类号： H01P7/08 , H03B5/18
CPC分类号： H01P7/082 , H03B5/1847
摘要： A microstrip assembly (100), includes a first substrate such as a multilayer substrate (102, 106 and 112) having pockets or cavity areas (104). A second substrate (110) includes transmission lines (108) on its first surface, and a ground plane on its second surface which help form a microstrip resonator. The first and second substrates are attached with the transmission lines (108) resting inside of the areas defined by cavity areas (104). By providing an air gap on top of transmission lines (108), the microstrip assembly (100) can exhibit enhanced characteristics, while still maintaining the high Q characteristics of a microstrip.
摘要翻译：微带组件（100）包括具有凹穴或空腔区域（104）的第一衬底，例如多层衬底（102,106和112）。第二基板（110）在其第一表面上包括传输线（108），在其第二表面上包括有助于形成微带谐振器的接地平面。所述第一和第二基板与传导线（108）相连接，所述传输线（108）位于由空腔区域（104）限定的区域的内部。通过在传输线（108）的顶部提供空气间隙，微带组件（100）可以表现出增强的特性，同时仍保持微带的高Q特性。

19. 发明授权

US5045815A Amplitude and phase balanced voltage-controlled oscillator 失效
标题翻译：振幅和相位平衡压控振荡器
公开(公告)号：US5045815A
公开(公告)日：1991-09-03
申请号：US620957
申请日：1990-12-03
申请人： Branko Avanic , Leng H. Ooi , Peter J. Yeh
发明人： Branko Avanic , Leng H. Ooi , Peter J. Yeh
IPC分类号： H03B1/00 , H03B5/18 , H03B19/00 , H03D9/06
CPC分类号： H03B5/1841 , H03B19/00 , H03B2201/0208 , H03D9/06
摘要： An oscillator comprises a resonator for providing an oscillation frequency for the oscillator, an active network, coupled to the resonator, for driving the resonator, and a split-ring resonator coupled to the main resonator and used to provide amplitude and phase balanced outputs. The split-ring resonator has at least a first edge, which is coupled to the resonator, and a second edge. The second edge has a gap therein, and a first terminal located at one side of the gap, and a second terminal symmetrically located at the other side of the gap.
摘要翻译：振荡器包括用于为振荡器提供振荡频率的谐振器，耦合到谐振器的有源网络，用于驱动谐振器，以及耦合到主谐振器并用于提供幅度和相位平衡输出的分裂环形谐振器。开环谐振器具有至少第一边缘，其耦合到谐振器和第二边缘。第二边缘具有间隙，第一端子位于间隙的一侧，第二端子对称地位于间隙的另一侧。

20. 发明授权

US5017897A Split ring resonator bandpass filter with differential output 失效
标题翻译：带差分输出的分频环形谐振器带通滤波器
公开(公告)号：US5017897A
公开(公告)日：1991-05-21
申请号：US562971
申请日：1990-08-06
申请人： Leng H. Ooi , Peter J. Yeh , Branko Avanic
发明人： Leng H. Ooi , Peter J. Yeh , Branko Avanic
IPC分类号： H01P1/203 , H01P5/10
CPC分类号： H01P1/20381 , H01P5/10
摘要： A bandpass filter (40) comprises a first microstrip split-ring resonator (12), having at least a first edge and a second edge, the first edge having a gap (20) therein, and an input. The bandpass filter (40) also comprises a second microstrip split-ring resonator (14), having at least a first edge and a second edge, the first edge being coupled to the second edge of the first microstrip split-ring resonator, and the second edge of the second microstrip split-ring resonator comprising a gap (26) therein and a balanced output (30, 32).
摘要翻译：带通滤波器（40）包括具有至少第一边缘和第二边缘的第一微带分裂环谐振器（12），第一边缘在其中具有间隙（20）和输入端。带通滤波器（40）还包括具有至少第一边缘和第二边缘的第二微带分裂环谐振器（14），第一边缘耦合到第一微带分裂环谐振器的第二边缘，并且第二微带分裂环谐振器的第二边缘包括其中的间隙（26）和平衡输出（30,32）。

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