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1. 发明授权

US06603804B1 Upsampling filter having one-bit multipliers for multiple spread-data streams 有权
标题翻译：具有用于多个扩展数据流的一位乘法器的上采样滤波器
公开(公告)号：US06603804B1
公开(公告)日：2003-08-05
申请号：US09411152
申请日：1999-10-01
申请人： Ramin Khoini-Poorfard , Lysander B. Lim , Malcolm H. Smith
发明人： Ramin Khoini-Poorfard , Lysander B. Lim , Malcolm H. Smith
IPC分类号： H04B169
CPC分类号： H03H17/0223
摘要： A transmit portion of a WB-CDMA transceiver generates one or more spread data streams having values represented by a single bit, allowing for filtering of spread and combined data streams with a root raised cosine (RRC) filter employing single-bit multipliers. The RRC filter is a digital filter that i) employs multiplication of two values in which the length of at least one value is one bit; ii) is preferably implemented with muxs or a simple logic operator; and iii) may employ upsampling and modulation encoding of filter coefficients to reduce the coefficient length to, for example, one bit. The RRC filter may be an FIR filter having either one-bit or multi-bit coefficients, and apply RRC filtering to a spread user stream either before or after the spread user streams are combined. For some implementations, RRC filters are employed to filter each spread user stream prior to combining several processed user steams. For other implementations, the multi-bit valued data stream representing the combined user streams is upsampled to form an upsampled data stream of single-bit values, and RRC filtering is then applied to the upsampled data stream. Alternatively, implementations may use upsampled RRC filter coefficients that allow RRC filtering on the combined spread user streams represented as a sequence of multi-bit values.
摘要翻译： WB-CDMA收发器的发送部分产生具有由单个比特表示的值的一个或多个扩展数据流，允许使用单比特乘法器的根升余弦（RRC）滤波器对扩展和组合数据流进行滤波。 RRC滤波器是数字滤波器，其i）采用其中至少一个值的长度为1比特的两个值的乘法; ii）优选地用多路复用器或简单的逻辑运算符实现; 和iii）可以采用滤波器系数的上采样和调制编码来将系数长度减小到例如一位。 RRC滤波器可以是具有一比特或多比特系数的FIR滤波器，并且在扩展用户流合并之前或之后对扩展用户流应用RRC滤波。对于一些实现方式，采用RRC滤波器来在组合若干已处理的用户流之前过滤每个扩展用户流。对于其他实施方式，表示组合用户流的多位值数据流被上采样以形成单位值的上采样数据流，然后将RRC滤波应用于上采样数据流。或者，实现可以使用上采样的RRC滤波器系数，其允许对表示为多位值序列的组合扩展用户流进行RRC过滤。

2. 发明授权

US6121827A Digital noise reduction in integrated circuits and circuit assemblies 有权
标题翻译：集成电路和电路组件中的数字降噪
公开(公告)号：US6121827A
公开(公告)日：2000-09-19
申请号：US293510
申请日：1999-04-15
申请人： Ramin Khoini-Poorfard , Lysander B. Lim
发明人： Ramin Khoini-Poorfard , Lysander B. Lim
IPC分类号： H01L23/50 , H01L25/00
CPC分类号： H01L23/50 , H01L24/49 , H01L2223/6611 , H01L2223/6688 , H01L2224/05553 , H01L2224/48091 , H01L2224/48227 , H01L2224/49113 , H01L24/48 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01033 , H01L2924/14 , H01L2924/3025
摘要： A mixed signal integrated circuit board having decreased sensitivity of analog circuitry to digital circuitry noise is disclosed. In the mixed-signal integrated board of the present invention, a new (second) analog ground is created. This new analog ground is not limited by the manufacturing specification of connectivity to the substrate of the circuit board and is thereby free of transient noise generated by digital components on the board. In a mixed-signal integrated circuit board of the present invention, the new analog ground becomes the preferred ground and is utilized in many sensitive analog applications including voltage and current measurements. The new analog ground is easy to create as it does not involved complicated circuitry. The new analog ground may be created even after the initial circuit schematics has been created.
摘要翻译：公开了一种具有降低的模拟电路对数字电路噪声灵敏度的混合信号集成电路板。在本发明的混合信号集成电路板中，产生新的（第二）模拟地。这种新的模拟接地不受电路板基板的连接的制造规范的限制，从而不受板上数字部件产生的瞬态噪声的影响。在本发明的混合信号集成电路板中，新的模拟地被成为优选的地面，并被用于包括电压和电流测量在内的许多敏感的模拟应用中。新的模拟地线容易创建，因为它不涉及复杂的电路。即使在创建初始电路原理图之后，也可能会创建新的模拟地。

3. 发明申请

US20130335639A1 Configurable Buffer For An Integrated Circuit 有权
标题翻译：用于集成电路的可配置缓冲器
公开(公告)号：US20130335639A1
公开(公告)日：2013-12-19
申请号：US13526060
申请日：2012-06-18
申请人： András Vince Horvath , Abdulkerim L. Coban , Pio Balmelli , Ramin Khoini-Poorfard , Alessandro Piovaccari
发明人： András Vince Horvath , Abdulkerim L. Coban , Pio Balmelli , Ramin Khoini-Poorfard , Alessandro Piovaccari
IPC分类号： H03L5/00 , H04N5/50
CPC分类号： H04N5/50 , H03J5/24 , H04L25/0292 , H04N5/165 , H04N5/455 , H04N21/42607
摘要： In one embodiment, an internal buffer may be provided within an integrated circuit (IC) to convert a signal to an output current to be output via a pin of the IC, under control of a switch which can be controlled based on a configuration setting of the IC, and may selectively directly couple the signal to the pin when the IC is coupled to an external driver circuit.
摘要翻译：在一个实施例中，内部缓冲器可以设置在集成电路（IC）内，以在开关的控制下将信号转换成经由IC的引脚输出的输出电流，该开关可以基于配置设置 IC，并且当IC耦合到外部驱动器电路时，可以选择性地将信号耦合到引脚。

4. 发明授权

US08587398B2 Shielded differential inductor 有权
标题翻译：屏蔽差分电感
公开(公告)号：US08587398B2
公开(公告)日：2013-11-19
申请号：US12570462
申请日：2009-09-30
申请人： Sherry X. Wu , Mustafa H. Koroglu , Ramin Khoini-Poorfard , Alessandro Piovaccari
发明人： Sherry X. Wu , Mustafa H. Koroglu , Ramin Khoini-Poorfard , Alessandro Piovaccari
IPC分类号： H01F27/32
CPC分类号： H01F17/0006 , H01F2017/008 , H01L23/5225 , H01L23/5227 , H03B5/1212 , H03B5/1228 , H03B5/124
摘要： A shielded differential inductor forms a high quality factor (high-Q) inductor that is configured to attenuate frequency spurs and/or noise from magnetic coupling generated by electrical structures on or off of a substrate as well as interference received by other components from magnetic coupling generated by the inductor. The shielded differential inductor includes a differential inductor and a shield that substantially isolates the electrical field between the inductor and the substrate to reduce substrate current loss. The shield includes sets of finger structures that extend beyond the width of the inductor and a hub and spoke configuration of ground conductors that connect the sets of finger structures to ground.
摘要翻译：屏蔽差分电感器形成高质量因子（高Q）电感器，其被配置为衰减由电气结构产生的磁耦合引起的基板的频率杂散和/或噪声以及由其他部件从磁耦合接收的干扰由电感产生。屏蔽差分电感器包括差分电感器和屏蔽层，其基本上隔离电感器和衬底之间的电场，以减少衬底电流损耗。护罩包括延伸超过电感器宽度的指状结构的集合以及将手指结构组连接到地的接地导体的轮毂和轮辐配置。

5. 发明授权

US08494470B2 Integrated receivers and integrated circuit having integrated inductors 有权
标题翻译：具有集成电感器的集成接收器和集成电路
公开(公告)号：US08494470B2
公开(公告)日：2013-07-23
申请号：US13160564
申请日：2011-06-15
申请人： Ramin Khoini-Poorfard , Alessandro Piovaccari , Aslamali A. Rafi , Mustafa H. Koroglu , David S. Trager , Abdulkerim L. Coban
发明人： Ramin Khoini-Poorfard , Alessandro Piovaccari , Aslamali A. Rafi , Mustafa H. Koroglu , David S. Trager , Abdulkerim L. Coban
IPC分类号： H04B1/06
CPC分类号： H04B1/28 , H03H11/04 , H04B1/30 , H04L27/148 , H04N5/455 , H04N5/50
摘要： An integrated wideband receiver includes first and second signal processing paths and a controller. The first signal processing path has an input, and an output for providing a first processed signal, and comprises a first tracking bandpass filter having a first integrated inductor. The second signal processing path has an input, and an output for providing a second processed signal, and comprises a second tracking bandpass filter having a second integrated inductor. The controller is for enabling one of the first and second signal processing paths corresponding to a selected channel of a radio frequency (RF) input signal to provide an output signal. The controller, the first integrated inductor, and said second integrated inductor are formed on a single integrated circuit chip.
摘要翻译：集成宽带接收机包括第一和第二信号处理路径和控制器。第一信号处理路径具有输入和用于提供第一处理信号的输出，并且包括具有第一集成电感器的第一跟踪带通滤波器。第二信号处理路径具有输入和用于提供第二处理信号的输出，并且包括具有第二集成电感器的第二跟踪带通滤波器。控制器用于启用与射频（RF）输入信号的选定信道相对应的第一和第二信号处理路径之一以提供输出信号。控制器，第一集成电感器和所述第二集成电感器形成在单个集成电路芯片上。

6. 发明授权

US08385867B2 Tracking filter for a television tuner 有权
标题翻译：电视调谐器的跟踪滤波器
公开(公告)号：US08385867B2
公开(公告)日：2013-02-26
申请号：US12493819
申请日：2009-06-29
申请人： Aslamali A. Rafi , Chunyu Xin , Ruifeng Sun , Abhishek Kammula , Ramin Khoini-Poorfard , Alessandro Piovaccari , Peter J. Vancorenland
发明人： Aslamali A. Rafi , Chunyu Xin , Ruifeng Sun , Abhishek Kammula , Ramin Khoini-Poorfard , Alessandro Piovaccari , Peter J. Vancorenland
IPC分类号： H04B1/18
CPC分类号： H03J3/06 , H03J3/32 , H03J2200/10 , H03J2200/32 , H04N5/50
摘要： In one embodiment, a set of tracking filters to be coupled between an amplifier and a mixer is provided. The tracking filters may be differently configured depending on band of operation. For example, a first set of the filters can be configured to maintain a substantially constant Q value across their operating bandwidth while a second set of the filters can be configured to maintain a substantially constant bandwidth across their operating bandwidth.
摘要翻译：在一个实施例中，提供要耦合在放大器和混频器之间的一组跟踪滤波器。根据操作频带，跟踪滤波器可以被不同地配置。例如，可以将第一组滤波器配置为在其工作带宽上维持基本上恒定的Q值，而第二组滤波器可被配置为在其工作带宽上维持基本恒定的带宽。

7. 发明申请

US20110215848A1 FREQUENCY SYNTHESIZER 有权
标题翻译：频率合成器
公开(公告)号：US20110215848A1
公开(公告)日：2011-09-08
申请号：US12715728
申请日：2010-03-02
申请人： Mustafa H. Koroglu , Sherry X. Wu , Ramin Khoini-Poorfard , Alessandro Piovaccari
发明人： Mustafa H. Koroglu , Sherry X. Wu , Ramin Khoini-Poorfard , Alessandro Piovaccari
IPC分类号： H03L7/06
CPC分类号： H03L7/06
摘要： A frequency synthesizer includes a controlled oscillator configured to extend a temperature range and phase noise of the synthesizer without compromising the frequency coverage of the synthesizer. The frequency synthesizer also includes bias generation circuitry that sets a bias current of a charge pump to reduce bandwidth variations of the synthesizer. The frequency synthesizer further includes switching circuitry to dynamically turn a charge pump on and off to reduce effects of current leakage in the charge pump.
摘要翻译：频率合成器包括受控振荡器，其被配置为在不损害合成器的频率覆盖的情况下延长合成器的温度范围和相位噪声。频率合成器还包括偏置产生电路，其设置电荷泵的偏置电流以减少合成器的带宽变化。频率合成器还包括开关电路，以动态地打开和关闭电荷泵，以减少电荷泵中电流泄漏的影响。

8. 发明申请

US20100328546A1 Tracking Filter For A Television Tuner 有权
标题翻译：电视调谐器的跟踪滤波器
公开(公告)号：US20100328546A1
公开(公告)日：2010-12-30
申请号：US12493819
申请日：2009-06-29
申请人： Aslamali A. Rafi , Chunyu Xin , Ruifeng Sun , Abhishek Kammula , Ramin Khoini-Poorfard , Alessandro Piovaccari , Peter J. Vancorenland
发明人： Aslamali A. Rafi , Chunyu Xin , Ruifeng Sun , Abhishek Kammula , Ramin Khoini-Poorfard , Alessandro Piovaccari , Peter J. Vancorenland
IPC分类号： H04N5/50 , H04B1/10 , H04B1/06
CPC分类号： H03J3/06 , H03J3/32 , H03J2200/10 , H03J2200/32 , H04N5/50
摘要： In one embodiment, a set of tracking filters to be coupled between an amplifier and a mixer is provided. The tracking filters may be differently configured depending on band of operation. For example, a first set of the filters can be configured to maintain a substantially constant Q value across their operating bandwidth while a second set of the filters can be configured to maintain a substantially constant bandwidth across their operating bandwidth.
摘要翻译：在一个实施例中，提供要耦合在放大器和混频器之间的一组跟踪滤波器。根据操作频带，跟踪滤波器可以被不同地配置。例如，可以将第一组滤波器配置为在其工作带宽上维持基本上恒定的Q值，而第二组滤波器可被配置为在其工作带宽上维持基本恒定的带宽。

9. 发明申请

US20070081615A1 Controlling gain in a satellite receiver 失效
标题翻译：控制卫星接收机的增益
公开(公告)号：US20070081615A1
公开(公告)日：2007-04-12
申请号：US11247477
申请日：2005-10-11
申请人： Ramin Khoini-Poorfard , David Trager
发明人： Ramin Khoini-Poorfard , David Trager
IPC分类号： H04L27/08 , H04B1/10
CPC分类号： H04L27/3809 , H03G3/3068 , H03M1/185
摘要： In one embodiment, the present invention includes a method for digitally detecting a first signal strength corresponding to a multi-channel spectrum of an incoming radio frequency (RF) spectrum and digitally detecting a second signal strength corresponding to a selected channel of the incoming RF spectrum. Based on these values, one or more one gain stages of a receiver, such as a satellite television receiver for the incoming RF spectrum, may be controlled. Other embodiments are described and claimed.
摘要翻译：在一个实施例中，本发明包括一种用于数字检测对应于输入射频（RF）频谱的多信道频谱的第一信号强度的方法，并且数字地检测对应于输入RF频谱的选定信道的第二信号强度。基于这些值，可以控制接收机的一个或多个增益级，例如用于输入RF频谱的卫星电视接收机。描述和要求保护其他实施例。

10. 发明申请

US20060089114A1 Receiver architectures utilizing coarse analog tuning and associated methods 失效
公开(公告)号：US20060089114A1
公开(公告)日：2006-04-27
申请号：US11240814
申请日：2005-09-30
申请人： Adrian Maxim , Ramin Khoini-Poorfard , James Kao
发明人： Adrian Maxim , Ramin Khoini-Poorfard , James Kao
IPC分类号： H04H1/00 , H04B1/18
CPC分类号： H04N7/20 , H03D3/006 , H03D3/007 , H03J1/0066 , H03K3/0322 , H03L7/18 , H04H40/90 , H04N5/4401 , H04N5/4446 , H04N5/50 , H04N21/4263
摘要： A technique includes receiving a signal spectrum that includes a plurality of channels within a first frequency range. The technique includes receiving a selection signal that identifies at least one desired channel to be tuned. The technique includes providing an oscillator that has a second frequency range that is substantially the same as the first frequency range and controlling the oscillators to generate one of a plurality of coarse-tune analog mixing signals. The signals substantially span across the second frequency range and each depends upon the location of the desired channel within the signal spectrum. The technique includes mixing the signal spectrum with the selected coarse-tune analog mixing signal to generate a coarsely tuned signal spectrum. The technique includes digitally processing the coarsely-tuned signal spectrum to fine tune the desired channel and to produce digital baseband signals for the desired channel.

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