公开(公告)号：US20120286856A1

公开(公告)日：2012-11-15

申请号：US13104899

申请日：2011-05-10

申请人： Hakan Dogan ,  Shahram Abdollahi-Alibeik

发明人： Hakan Dogan ,  Shahram Abdollahi-Alibeik

IPC分类号： H04B15/02

CPC分类号： H03H7/0153 ,  H03K5/24

摘要： A system and method are disclosed for reducing the kickback disturbance in an electronic circuit. The system is based on the coupling of a programmable noise filter between bias blocks. In one embodiment the programmable noise filter includes capacitors, resisters and switches and forms a C-R-C circuit structure. By selecting the resistance and capacitance values and the status of the switches, the performance of the programmable noise filter is determined. Also disclosed is a system and method to reduce kickback disturbances comprising N+1 bias blocks, N programmable noise filters, and a bias reference generator, wherein N is equal to or greater than one.

摘要翻译： 公开了一种用于减小电子电路中的反冲扰的系统和方法。 该系统基于偏置块之间的可编程噪声滤波器的耦合。 在一个实施例中，可编程噪声滤波器包括电容器，电阻器和开关，并形成C-R-C电路结构。 通过选择电阻和电容值以及开关的状态，确定可编程噪声滤波器的性能。 还公开了一种减少包括N + 1个偏置块，N个可编程噪声滤波器和偏置参考发生器的反冲扰的系统和方法，其中N等于或大于1。

公开(公告)号：US20080181284A1

公开(公告)日：2008-07-31

申请号：US12016955

申请日：2008-01-18

申请人： Paul J. Husted ,  Shahram Abdollahi-Alibeik ,  David J. Weber ,  Soner Ozgur

发明人： Paul J. Husted ,  Shahram Abdollahi-Alibeik ,  David J. Weber ,  Soner Ozgur

IPC分类号： H04B1/69

CPC分类号： H04B1/30

摘要： An apparatus for processing a Bluetooth signal advantageously mixes down a received RF signal to an IF signal wherein one band-edge of the spectrum of the IF signal may be approximately 0 Hz. In one embodiment, the IF signal may be digitized, decimated and filtered before being processed into a baseband signal. The baseband signal may be processed by a cordic (COordinate Rotation DIgital Computer) processor to transform the baseband signal from rectangular to polar coordinates. A phase signal from the cordic processor may be used to determine transmitted Bluetooth data symbols. The apparatus may advantageously use less area than traditional Bluetooth receivers.

摘要翻译： 用于处理蓝牙信号的装置有利地将所接收的RF信号与IF信号相混合，其中IF信号的频谱的一个带边可以为大约0Hz。 在一个实施例中，IF信号可以在被处理成基带信号之前被数字化，抽取和滤波。 基带信号可以由Cordic（Coordinate Rotation DIgital Computer）处理器处理，以将基带信号从矩形变换为极坐标。 可以使用来自Cordic处理器的相位信号来确定所发送的蓝牙数据符号。 该装置可以有利地使用比传统蓝牙接收机更少的面积。

公开(公告)号：US08144811B2

公开(公告)日：2012-03-27

申请号：US12016955

申请日：2008-01-18

申请人： Paul J. Husted ,  Shahram Abdollahi-Alibeik ,  David J. Weber ,  Soner Ozgur

发明人： Paul J. Husted ,  Shahram Abdollahi-Alibeik ,  David J. Weber ,  Soner Ozgur

IPC分类号： H03K9/00

CPC分类号： H04B1/30

摘要： An apparatus for processing a Bluetooth signal advantageously mixes down a received RF signal to an IF signal wherein one band-edge of the spectrum of the IF signal may be approximately 0 Hz. In one embodiment, the IF signal may be digitized, decimated and filtered before being processed into a baseband signal. The baseband signal may be processed by a cordic (COordinate Rotation DIgital Computer) processor to transform the baseband signal from rectangular to polar coordinates. A phase signal from the cordic processor may be used to determine transmitted Bluetooth data symbols. The apparatus may advantageously use less area than traditional Bluetooth receivers.

摘要翻译： 用于处理蓝牙信号的装置有利地将所接收的RF信号与IF信号相混合，其中IF信号的频谱的一个带边可以为大约0Hz。 在一个实施例中，IF信号可以在被处理成基带信号之前被数字化，抽取和滤波。 基带信号可以由Cordic（Coordinate Rotation DIgital Computer）处理器处理，以将基带信号从矩形变换为极坐标。 可以使用来自Cordic处理器的相位信号来确定所发送的蓝牙数据符号。 该装置可以有利地使用比传统蓝牙接收机更少的面积。

公开(公告)号：US07526603B1

公开(公告)日：2009-04-28

申请号：US11116756

申请日：2005-04-28

申请人： Shahram Abdollahi-Alibeik ,  Mayur Vinod Joshi

发明人： Shahram Abdollahi-Alibeik ,  Mayur Vinod Joshi

IPC分类号： G06F12/00

CPC分类号： G11C15/00

摘要： The disclosed invention presents a method and apparatus to a one dimensional prefix search problem. The problem consists looking up the best match to a word out of a table of one-dimensional prefixes. The invention addresses the problems with prior art of high power consumption, large silicon chip area for implementation and slow search speed. The prefix entries are divided in several subgroups. A function is described that can be efficiently implemented to determine which of these subgroups the presented word will find a best match in. Thus, it is necessary to search only this small subgroup of prefixes. This saves on power consumption as well as area. An efficient hardware embodiment of this idea which can search at a very high speed is also presented. The applications for this invention could include internet routing, telephone call routing and string matching.

摘要翻译： 所公开的发明提供了一维前缀搜索问题的方法和装置。 这个问题包括从一维前缀的表中查找一个单词的最佳匹配。 本发明解决了高功耗现有技术的问题，实现的大芯片面积和搜索速度慢。 前缀条目分为几个子组。 描述了可以有效地实现的功能，以确定所呈现的单词中哪个子组将找到最佳匹配。因此，仅需要搜索该小子组的前缀。 这节省了功耗以及面积。 还提出了可以以非常高的速度搜索的这种想法的高效硬件实施例。 本发明的应用可以包括互联网路由，电话呼叫路由和字符串匹配。