公开(公告)号：US07876808B2

公开(公告)日：2011-01-25

申请号：US11565448

申请日：2006-11-30

Applicant: Severine Catreux-Erceg ,  Li Fung Chang

Inventor： Severine Catreux-Erceg ,  Li Fung Chang

IPC: H04B1/00

CPC classification number: H04L1/20 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0033

Abstract: Methods and systems for processing signals in a wireless communication system are disclosed. Aspects of the method may include estimating at a receiver, a rate at which a communication channel changes. A length of a filter used to average a noise power estimate and/or a signal power estimate may be adaptively changed based on the estimation of the rate at which the communication channel changes. The communication channel may comprise a common pilot channel (CPICH). At least a portion of a wireless signal received via the communication channel may be descrambled at the receiver to generate a plurality of descrambled bits. At least a portion of the plurality of descrambled bits may be accumulated to generate at least one in-phase (I) component and at least one quadrature (Q) component.

Abstract translation: 公开了一种在无线通信系统中处理信号的方法和系统。 该方法的方面可以包括在接收机处估计通信信道改变的速率。 用于平均噪声功率估计和/或信号功率估计的滤波器的长度可以基于通信信道改变的速率的估计而自适应地改变。 通信信道可以包括公共导频信道（CPICH）。 经由通信信道接收的无线信号的至少一部分可以在接收机处被解扰，以产生多个解扰比特。 可以累积多个解扰比特的至少一部分以产生至少一个同相（I）分量和至少一个正交（Q）分量。

公开(公告)号：US07864689B2

公开(公告)日：2011-01-04

申请号：US10612729

申请日：2003-07-02

Applicant: Kevin T. Chan

Inventor： Kevin T. Chan

IPC: H04L12/28

CPC classification number: H04L69/18 ,  H04L69/14 ,  H04L69/324 ,  H04L69/40

Abstract: Providing and configuring communication links may include determining a usable media pair from all existing media pairs and selecting any one channel from all existing channels. The selected channel may be assigned to any one of the media pairs. Any one or any combination of media pairs may be monitored in order to detect the existence of a communication signal on any of the media pairs. Some or all of the existing media pairs may be monitored to determine which of the media pair may be capable of facilitating communication at a maximum communication speed and if not, at a reduced speed. Any selected channel may be cross-connected to any one of the existing media pairs, which may be capable of facilitating communication at the maximum or reduced communication speed.

Abstract translation: 提供和配置通信链路可以包括确定来自所有现有媒体对的可用媒体对，并且从所有现有信道中选择任何一个信道。 可以将所选择的频道分配给任何一个媒体对。 可以监视媒体对的任何一种或任何组合，以便检测任何媒体对上的通信信号的存在。 可以监视部分或全部现有媒体对，以确定媒体对中的哪一个可能能够以最大通信速度促进通信，如果不是，则以降低的速度。 任何所选择的信道可以交叉连接到现有媒体对中的任何一个，其可以有助于以最大或降低的通信速度进行通信。

公开(公告)号：US07856215B2

公开(公告)日：2010-12-21

申请号：US11618808

申请日：2006-12-30

Applicant: Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

Inventor： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

IPC: H04B17/00 ,  H04B17/02 ,  H04B1/06 ,  H04B7/00

CPC classification number: H04B7/0811

Abstract: Aspects of a method and system for signal processing are disclosed and may include receiving a plurality of wireless signals via a plurality of M receive antennas. Each of M phase shifters coupled to each of the M receive antennas may be set to operate in a bypass mode or with an arbitrary phase setting. Corresponding signal strengths of M signals generated when each of the M phase-shifters is coupled to each of the M receive antennas may be measured, while at least a portion of the M receive antennas are turned off. Selecting one of the M generated signals for processing without the use of an antenna switch, based on the measured signal strength. A signal strength of each of the generated M amplified signals may be measured while turning off at least one of the plurality of M receive antennas and without the use of the phase-shifters.

Abstract translation: 公开了用于信号处理的方法和系统的方面，并且可以包括经由多个M个接收天线接收多个无线信号。 耦合到M个接收天线中的每一个的M个移相器中的每一个可以被设置为以旁路模式或任意相位设置操作。 当M个接收天线的至少一部分被关闭时，可以测量当每个M个移相器耦合到每个M个接收天线时产生的M个信号的相应信号强度。 基于测量的信号强度，选择M个生成的信号之一进行处理而不使用天线开关。 可以在断开多个M个接收天线中的至少一个并且不使用移相器的同时测量所产生的M个放大信号中的每一个的信号强度。

公开(公告)号：US07830981B2

公开(公告)日：2010-11-09

申请号：US11536655

申请日：2006-09-29

Applicant: Ahmadreza Rofougaran

Inventor： Ahmadreza Rofougaran

IPC: H04L25/49

CPC classification number: H04L27/367 ,  H03F1/0222 ,  H03F1/0266 ,  H03F3/24 ,  H03G3/004 ,  H04W52/52

Abstract: A method and system for minimizing power consumption in a communication system is provided. The method may include adjusting the supply voltage of a linear amplifier, which may be used for amplifying a RF signal, in proportion to the envelope of the baseband of the RF signal. The signals may correspond to a variety of communication protocols. For example, WCDMA, HSDPA, HSUDPA, GSM, GPRS, EDGE, WiMAX, OFDM, UWB, ZigBee, and BlueTooth. The baseband signal may be delayed by a number of samples before being input into the amplifier. The envelope may be measured by evaluating a plurality of I and Q samples from the baseband signal. The number of samples may be calculated by measuring the intermodulation distortion at the output of the amplifier. The supply voltage may be generated by a switching regulator. The method may also include adjusting a bias voltage of the amplifier in proportion to the envelope of the baseband signal, where the bias voltage may control the gain of the amplifier. The bias voltage may also be generated by a switching regulator.

Abstract translation: 提供了一种用于最小化通信系统中的功耗的方法和系统。 该方法可以包括与RF信号的基带的包络成比例地调整可用于放大RF信号的线性放大器的电源电压。 信号可以对应于各种通信协议。 例如，WCDMA，HSDPA，HSUDPA，GSM，GPRS，EDGE，WiMAX，OFDM，UWB，ZigBee和BlueTooth。 在输入到放大器之前，基带信号可以延迟多个样本。 可以通过从基带信号中估计多个I和Q采样来测量信封。 可以通过测量放大器输出端的互调失真来计算采样数。 电源电压可由开关稳压器产生。 该方法还可以包括根据基带信号的包络调整放大器的偏置电压，其中偏置电压可以控制放大器的增益。 偏置电压也可以由开关调节器产生。

公开(公告)号：US07804855B2

公开(公告)日：2010-09-28

申请号：US12330131

申请日：2008-12-08

Applicant: Martin Lund ,  Howard Baumer

Inventor： Martin Lund ,  Howard Baumer

IPC: H04J3/00

CPC classification number: H04L25/4908 ,  H04L25/14

Abstract: A system for encoding data in a multilane communication channel may include at least one processor operable to generate, from existing control characters in a character set, expanded control characters utilized for controlling the data in each lane of the multilane communication channel. Each lane of the multilane communication channel may transport the data in a similar direction. The at least one processor is also operable to control at least one of the lanes of the multilane communication channel using at least one of the generated control characters. If a first control character of the existing control characters is a start-of-packet control character, the at least one processor is then operable to select a second control character from any other of the generated expanded control characters, and to indicate a start of a packet using the selected second control character for at least one of the lanes.

Abstract translation: 用于在多路通信信道中对数据进行编码的系统可以包括至少一个处理器，其可操作以从字符集中的现有控制字符生成用于控制多通信通道的每个通道中的数据的扩展控制字符。 多路通信信道的每个通道可以以相似的方向传输数据。 所述至少一个处理器还可操作以使用所生成的控制字符中的至少一个来控​​制所述多径通信信道的至少一个通道。 如果现有控制字符的第一控制字符是分组开始控制字符，则至少一个处理器然后可操作以从所生成的扩展控制字符中的任何另一个中选择第二控制字符，并且指示开始 使用所选择的第二控制字符的分组，用于至少一个所述通道。

公开(公告)号：US07590387B2

公开(公告)日：2009-09-15

申请号：US11083781

申请日：2005-03-18

Applicant: Hung-Ming Chien

Inventor： Hung-Ming Chien

IPC: H04B17/00

CPC classification number: H03L7/10 ,  H03L7/099 ,  H03L7/18

Abstract: Methods and systems for calibrating a frequency of a circuit are disclosed herein and may comprise dividing a feedback frequency of an output frequency signal to generate a divided frequency signal. Open loop calibration may be performed based on a binary search of the generated divided frequency signal to generate a coarse calibrated frequency signal. Subsequently, a closed loop calibration may be performed on the coarse calibrated frequency signal to generate a fine calibrated frequency signal. A binary code may be generated utilizing the binary search of the generated divided frequency signal. Capacitance within the circuit may be adjusted based on the generated binary code. A control voltage for the circuit may be measured by closing a phase locked loop (PLL) with the circuit. If the measured control voltage is not within a determined voltage range, a calibration flag signal may be generated.

Abstract translation: 本文公开了用于校准电路频率的方法和系统，并且可以包括分频输出频率信号的反馈频率以产生分频信号。 可以基于生成的分频信号的二进制搜索来执行开环校准，以生成粗校准频率信号。 随后，可以对粗校准的频率信号执行闭环校准，以产生精细校准的频率信号。 可以利用生成的分频信号的二进制搜索生成二进制码。 可以基于生成的二进制码来调整电路内的电容。 可以通过用电路闭合锁相环（PLL）来测量电路的控制电压。 如果测量的控制电压不在确定的电压范围内，则可能产生校准标志信号。

公开(公告)号：US06985565B2

公开(公告)日：2006-01-10

申请号：US10842612

申请日：2004-05-10

Applicant: Vladimir Oksman ,  Raphael Rahamim

Inventor： Vladimir Oksman ,  Raphael Rahamim

IPC: H04M11/00

CPC classification number: H04L12/66

Abstract: A method for configuring a multi-port digital subscriber line (DSL) modem, the method begins by utilizing frequency bands of a single DSL channel to support a data communication when loop length of the single DSL channel and data rate of the data communication are favorable. The method continues by utilizing some of the frequency bands of the single DSL channel and frequency bands of at least one other DSL channel to support the data communication when the loop length of the single DSL channel is unfavorable or the data rate of the data communication is unfavorable.

Abstract translation: 一种用于配置多端口数字用户线（DSL）调制解调器的方法，该方法开始于单个DSL信道的频带以支持数据通信，当单个DSL信道的环路长度和数据通信的数据速率是有利的 。 当单个DSL信道的环路长度不利或数据通信的数据速率是不利的时候，该方法通过利用单个DSL信道的一些频带和至少一个其他DSL信道的频带来支持数据通信 不利。

公开(公告)号：US06909332B2

公开(公告)日：2005-06-21

申请号：US10639079

申请日：2003-08-12

Applicant: Guangming Yin ,  Bo Zhang ,  Ichiro Fujimori

Inventor： Guangming Yin ,  Bo Zhang ,  Ichiro Fujimori

IPC: H03B5/12 ,  H03L7/099 ,  H03L7/10 ,  H04J3/04 ,  H04J3/06 ,  H04L7/00 ,  H03L7/00

CPC classification number: H03L7/10 ,  H03B5/1209 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03L7/099 ,  H04J3/04 ,  H04J3/0629 ,  H04L7/0008

Abstract: The present invention provides a method for tuning output drivers to an operating frequency based on settings used to tune other devices within the device such as a VCO. First the VCO within a PLL and clock circuit is tuned to the desired operating frequency. This operating frequency then corresponds to a discrete tuning setting. The discrete setting that causes the VCO to function at the operating frequency are then transferred to scaled amplifiers within output drivers. These drivers are then tuned to the operating frequency with these settings. This process eliminates the need to individually tune each output driver to function properly at the operating frequency.

公开(公告)号：US06888410B1

公开(公告)日：2005-05-03

申请号：US10683183

申请日：2003-10-10

Applicant: Qiang (Thomas) Li

Inventor： Qiang (Thomas) Li

IPC: H03F1/30 ,  H03F1/52 ,  H03F3/72 ,  H03F1/22

CPC classification number: H03F1/301 ,  H03F1/223 ,  H03F1/523 ,  H03F3/72 ,  H03F2200/372 ,  H03F2203/7206

Abstract: A power amplifier includes an input transistor, an input bias circuit, an output transistor, and a power down circuit. The input transistor includes a gate, a drain, and a source, wherein the source of the input transistor is coupled to a supply voltage return and the gate of the input transistor is operably coupled to receive an outbound radio frequency (RF) signal. The input bias circuit is operably coupled to provide an enabling bias voltage to the gate of the input transistor during transmit mode and to provide a disabling bias voltage to the gate of the input transistor during power down mode. The output transistor includes a gate, a drain, and a source, wherein the drain of the output transistor is coupled to provide an output of the power amplifier and the source of the output transistor is coupled to the drain of the input transistor. The power down circuit is operably coupled to provide an output enabling bias voltage to the gate of the output transistor during the transmit mode and to provide an output disabling bias voltage to the gate of the output transistor during the power down mode, wherein the output disabling bias voltage is of a value to distribute gate oxide stress between the input transistor and the output transistor.

Abstract translation: 功率放大器包括输入晶体管，输入偏置电路，输出晶体管和掉电电路。 输入晶体管包括栅极，漏极和源极，其中输入晶体管的源极耦合到电源电压返回，并且输入晶体管的栅极可操作地耦合以接收出站射频（RF）信号。 输入偏置电路可操作地耦合以在发射模式期间向输入晶体管的栅极提供使能偏置电压，并且在断电模式期间向输入晶体管的栅极提供禁用偏置电压。 输出晶体管包括栅极，漏极和源极，其中输出晶体管的漏极被耦合以提供功率放大器的输出，并且输出晶体管的源极耦合到输入晶体管的漏极。 断电电路可操作地耦合以提供在发射模式期间使输出晶体管的栅极施加偏置电压的输出，并且在掉电模式期间向输出晶体管的栅极提供输出禁止偏置电压，其中输出禁止 偏置电压是在输入晶体管和输出晶体管之间分配栅极氧化应力的值。

公开(公告)号：US06882263B2

公开(公告)日：2005-04-19

申请号：US10844930

申请日：2004-05-13

Applicant: Hung Yu Yang ,  Jesse A Castaneda ,  Reza Rofougaran

Inventor： Hung Yu Yang ,  Jesse A Castaneda ,  Reza Rofougaran

IPC: H01F17/00 ,  H01F19/04 ,  H03H7/42 ,  H01F5/00

CPC classification number: H03H7/42 ,  H01F17/0013 ,  H01F19/04 ,  H01F2021/125 ,  H01L23/5227 ,  H01L23/645 ,  H01L2924/0002 ,  Y10T29/4902 ,  Y10T29/49135 ,  H01L2924/00

Abstract: A transformer balun is obtained that is symmetrical in structure, provides high current, or high voltage, amplification and has high coupling coefficients while maintaining minimal overall size. The balun structure includes primary and secondary metal windings at separate layer interfaces. The primary and secondary metal windings are symmetrical and can have any number of turns, which is only limited by integrated circuit area and capacitance. Accordingly, the, primary and secondary windings may be on as many layers as needed. Further, the primary and/or secondary may include a center tap ground, which enables the winding to be used as a differential port.

Abstract translation: 获得在结构上对称的变压器平衡 - 不平衡转换器，提供高电流或高电压放大，并具有高耦合系数，同时保持最小的总体尺寸。 平衡 - 不平衡转换器结构包括在单独层接口处的主金属绕组和次级金属绕组。 主金属绕组和次级金属绕组是对称的，并且可以具有任何数量的匝数，其仅受集成电路面积和电容的限制。 因此，初级和次级绕组可以根据需要在尽可能多的层上。 此外，主和/或次级可以包括中心抽头接地，其使得绕组能够用作差动端口。