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1. 发明授权

US08594213B2 Signal processing device and method 有权
标题翻译：信号处理装置及方法
公开(公告)号：US08594213B2
公开(公告)日：2013-11-26
申请号：US13001765
申请日：2009-06-01
申请人： Lars Sundstrom , Filip Oredsson , Tony Petersson
发明人： Lars Sundstrom , Filip Oredsson , Tony Petersson
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04B1/28 , H04B1/406
摘要： A processing device processes an analog complex input signal representing a sequence of OFDM symbols in a radio-receiver. The processing device comprises processing paths, each comprising a complex mixer and an analog channel-selection filter. Furthermore, the processing device comprises an oscillator unit that provides local oscillator signals associated with the complex mixer of each processing path. A control unit determines, based on received control data, subcarrier locations, within at least one individual OFDM symbol of the sequence, of one or more resource blocks allocated to the radio receiver. The control unit, for each of the at least one individual OFDM symbol, controls the local oscillator signals based on the determined subcarrier locations and passbands of the channel-selection filters such that each resource block allocated to the radio receiver is frequency translated by a complex mixer of the processing paths to appear within the passband of the following channel-selection filter.
摘要翻译：处理装置处理在无线电接收机中表示OFDM符号序列的模拟复合输入信号。处理装置包括处理路径，每个处理路径包括复合混合器和模拟通道选择滤波器。此外，处理装置包括振荡器单元，其提供与每个处理路径的复合混频器相关联的本地振荡器信号。控制单元基于接收到的控制数据，确定分配给无线电接收机的一个或多个资源块的子载波位置，在该序列的至少一个单独OFDM符号内。对于至少一个单独OFDM符号中的每一个，控制单元基于所确定的信道选择滤波器的子载波位置和通带来控制本地振荡器信号，使得分配给无线电接收机的每个资源块由复数处理路径的混合器出现在随后的通道选择滤波器的通带内。

2. 发明申请

US20070230635A1 WIRELESS COMMUNICATION RECEPTION WITH COOPERATION BETWEEN AGC AND DIGITAL BASEBAND 审中-公开
标题翻译：无线通信接收AGC和数字基带之间的合作
公开(公告)号：US20070230635A1
公开(公告)日：2007-10-04
申请号：US11278527
申请日：2006-04-03
申请人： Leif Wilhelmsson , Jim Svensson , Lars Sundstrom
发明人： Leif Wilhelmsson , Jim Svensson , Lars Sundstrom
IPC分类号： H04L27/08 , H04K1/10
CPC分类号： H04L27/2647 , H03G3/3052 , H03G2201/103 , H03G2201/202 , H03G2201/302 , H04L25/0202 , H04L27/2607
摘要： In communication systems where the channel is expected to vary during a communication burst, gain adjustments during the communication burst can be implemented by automatic gain control (AGC) in the receiver, with minimal performance degradation. These gain adjustments are successfully accommodated by virtue of suitable information-sharing between an AGC unit and a digital baseband part. The digital baseband part can direct the AGC unit appropriately to ensure that gain adjustments are implemented during time intervals that do not carry substantive communication information (e.g., guard intervals). In receivers that perform channel estimation in the digital baseband part, the AGC unit supports channel estimation by informing the digital baseband part about the timing of the gain adjustment. The AGC unit can also support channel estimation by informing the digital baseband part about the size of the gain adjustment.
摘要翻译：在通信期望信道在通信突发期间变化的通信系统中，通信突发期间的增益调整可以通过接收机中的自动增益控制（AGC）来实现，性能下降最小。通过AGC单元和数字基带部分之间的合适的信息共享，可以成功地适应这些增益调整。数字基带部分可以适当地引导AGC单元，以确保在不携带实质性通信信息（例如，保护间隔）的时间间隔期间实现增益调整。在数字基带部分进行信道估计的接收机中，AGC单元通过向数字基带部分通知增益调整的定时来支持信道估计。 AGC单元还可以通过向数字基带部分通知增益调整的大小来支持信道估计。

3. 发明申请

US20140154735A1 TUMOUR CELL AND TISSUE CULTURE 审中-公开
标题翻译：肿瘤细胞和组织培养
公开(公告)号：US20140154735A1
公开(公告)日：2014-06-05
申请号：US13978209
申请日：2012-01-06
申请人： Lars Sundstrom , Thelma Biggs , Janet Foreman
发明人： Lars Sundstrom , Thelma Biggs , Janet Foreman
IPC分类号： G01N33/50
CPC分类号： G01N33/5014 , C12N5/0693 , G01N33/5011
摘要： The present invention relates to in vitro three-dimensional organotypic cell co-culture. Cultures of the invention comprise tumour cells three-dimensionally disposed within a matrix of matrix cells which are distinct from the tumour cells, wherein the co-culture does not comprise a basement membrane. The cultures are useful for the study of cancers, for testing anti-tumour agent efficacy, and for high-throughput screening of candidate drugs.
摘要翻译：本发明涉及体外三维器官细胞共培养。本发明的培养物包含三维排列在与肿瘤细胞不同的基质细胞的基质内的肿瘤细胞，其中共培养物不包含基底膜。这些培养物可用于研究癌症，测试抗肿瘤药物的功效，以及高通量筛选候选药物。

4. 发明申请

US20130273834A1 SELF-INTERFERENCE SUPPRESSION CONTROL FOR A RELAY NODE 有权
标题翻译：用于继电器节点的自干扰抑制控制
公开(公告)号：US20130273834A1
公开(公告)日：2013-10-17
申请号：US13880533
申请日：2011-09-22
申请人： Lars Sundstrom , Leif Wilhelmsson
发明人： Lars Sundstrom , Leif Wilhelmsson
IPC分类号： H04B7/155 , H04B15/00
CPC分类号： H04B7/15585 , H04B7/155 , H04B15/00
摘要： A technique for self-interference suppression control for a relay node is provided. The relay node comprises a transmitter and a receiver, and is adapted to transmit and received simultaneously using the same frequency channel or using proximate frequency channels. The relay node further comprises an interference signal estimator having a first input adapted to receive a transmitter signal from the transmitter, a second input adapted to receive adaptation metric and an output adapted to output an estimated interference signal generated by the interference signal estimator based on the transmitter signal and the adaptation metric. A subtractor is coupled to the output of interference signal estimator and configured to subtract the estimated interference signal from a received signal in the receiver so as to actively cancel a signal transmitted from the relay node that leaks back into the receiver of the relay node to suppress self-interference.
摘要翻译：提供了一种用于中继节点的自干扰抑制控制的技术。中继节点包括发射机和接收机，并且适于使用相同的频道或使用接近的频率信道同时发射和接收。所述中继节点还包括干扰信号估计器，所述干扰信号估计器具有适于从所述发射机接收发射机信号的第一输入端，适于接收自适应度量的第二输入端和适于输出由干扰信号估计器产生的估计干扰信号的输出，发射机信号和适应度量。减法器耦合到干扰信号估计器的输出，并且被配置为从接收器中的接收信号中减去所估计的干扰信号，从而主动地消除从中继节点发送的信号，该信号泄漏回中继节点的接收机以抑制自我干扰

5. 发明申请

US20100189203A1 Automatic Gain Control Based on Bandwidth and Delay Spread 有权
标题翻译：基于带宽和延迟传播的自动增益控制
公开(公告)号：US20100189203A1
公开(公告)日：2010-07-29
申请号：US12361578
申请日：2009-01-29
申请人： Leif Wilhelmsson , Jan Celander , Lars Sundstrom
发明人： Leif Wilhelmsson , Jan Celander , Lars Sundstrom
IPC分类号： H04L27/08
CPC分类号： H03G3/3078 , H03G3/3068
摘要： A gain control circuit adjusts the signal level of a received signal responsive to the bandwidth a received signal and/or the delay spread of the channel in which the signal has propagated. The bandwidth and delay spread are evaluated to estimate the amount of signal variation that is expected due to fast fading. Adjustments to the signal level are then made to avoid clipping while at the same time ensuring that the dynamic range of a receiver component is efficiently utilized.
摘要翻译：增益控制电路响应于接收信号的带宽和/或信号已经传播的信道的延迟扩展来调整接收信号的信号电平。评估带宽和延迟扩展以估计由于快速衰落所预期的信号变化量。然后进行对信号电平的调整，以避免削波，同时确保接收器组件的动态范围得到有效利用。

6. 发明申请

US20090072874A1 Adjusting a Filter of a Time-Continuous Sigma-Delta Converter 有权
标题翻译：调整时间连续Σ-Δ转换器的滤波器
公开(公告)号：US20090072874A1
公开(公告)日：2009-03-19
申请号：US12097242
申请日：2006-12-02
申请人： Lars Sundstrom
发明人： Lars Sundstrom
IPC分类号： H03K5/02
CPC分类号： H03M3/48 , H03M3/454 , H03M3/49
摘要： This invention relates to adjusting a filter of a time-continuous Sigma-Delta converter arranged to convert an analog input signal (Sin) to a digital output signal. A control signal indicative of a gain of the filter is provided, and the gain of the filter is adjusted in dependence of the control signal. The control signal is provided from the digital output signal of the Sigma-Delta converter. In this way the performance of the Sigma-Delta converter can be improved in a simple way that requires no or few additional analog components, and the Sigma-Delta converter itself is used to adjust its performance. Using a signal from the digital domain of the Sigma-Delta converter is advantageous in that it is typically easier, faster and more precise to process signals in the digital domain.
摘要翻译：本发明涉及调整时间连续Σ-Δ转换器的滤波器，其被布置为将模拟输入信号（Sin）转换成数字输出信号。提供表示滤波器增益的控制信号，根据控制信号调整滤波器的增益。控制信号由Sigma-Delta转换器的数字输出信号提供。以这种方式，可以以不需要或少量额外的模拟组件的简单方式来改进Sigma-Delta转换器的性能，并且使用Sigma-Delta转换器本身来调整其性能。使用来自Sigma-Delta转换器的数字域的信号是有利的，因为在数字域中处理信号通常更容易，更快速和更精确。

7. 发明授权

US07414557B2 Method and apparatus for feedback signal generation in sigma-delta analog-to-digital converters 有权
标题翻译：在Σ-Δ模数转换器中产生反馈信号的方法和装置
公开(公告)号：US07414557B2
公开(公告)日：2008-08-19
申请号：US11611495
申请日：2006-12-15
申请人： Martin Andersson , Lars Sundstrom
发明人： Martin Andersson , Lars Sundstrom
IPC分类号： H03M3/00
CPC分类号： H03M3/464
摘要： A method and apparatus taught herein provide a digital-to-analog converter (DAC) for use in a conversion feedback path of a sigma-delta type analog-to-digital converter (ADC). The DAC uses current pulse shaping to generate a conversion feedback signal in each feedback cycle of the ADC that provides a consistent charge transfer for accurate digital conversion and has a controlled current pulse shape. In one or more embodiments, the DAC includes a capacitor circuit for charge storage and transfer and a (series) resistive circuit having variable resistance for current pulse shape control. In at least one embodiment, current pulse control limits a peak current of the conversion feedback signal, thereby reducing DC power consumption and gain-bandwidth (GBW) and slew rate requirements of the ADC's integration amplifier, and limiting residual (ending) current in each feedback cycle, which yields commensurate gains in (feedback cycle) clock jitter insensitivity.
摘要翻译：本文教导的方法和装置提供了用于Σ-Δ型模数转换器（ADC）的转换反馈路径中的数模转换器（DAC）。 DAC使用电流脉冲整形在ADC的每个反馈周期中产生转换反馈信号，提供一致的电荷转移以实现精确的数字转换，并具有受控的电流脉冲形状。在一个或多个实施例中，DAC包括用于电荷存储和传输的电容器电路和具有用于电流脉冲形状控制的可变电阻的（串联）电阻电路。在至少一个实施例中，电流脉冲控制限制了转换反馈信号的峰值电流，从而降低了ADC集成放大器的直流功耗和增益带宽（GBW）和压摆率要求，并限制了每个反馈周期，其在（反馈周期）时钟抖动不敏感性中产生相当的增益。

8. 发明申请

US20070142005A1 Method and apparatus for modulation path delay mismatch compensation in a polar modulation transmitter 有权
标题翻译：用于极坐标调制发射机中的调制路径延迟失配补偿的方法和装置
公开(公告)号：US20070142005A1
公开(公告)日：2007-06-21
申请号：US11313032
申请日：2005-12-20
申请人： Lars Sundstrom
发明人： Lars Sundstrom
IPC分类号： H01Q11/12
CPC分类号： H03C5/00
摘要： A polar modulation transmitter offers a split architecture for determining amplitude modulation path delay of the transmitter and comprises a split supply modulation circuit and a split power amplifier circuit. The split supply modulation circuit includes a common supply input and is configured to receive a common amplitude-modulation signal at respective signal inputs and output first and second modulated supply signals responsive to the common amplitude-modulation signal. The split power amplifier circuit includes first and second supply inputs each coupled to one of the respective modulated supply signals, first and second signal inputs and first and second outputs each responsive to the respective supply and signal inputs, the split power amplifier circuit being configured to receive a common phase-modulation signal at its signal inputs and combine its outputs to form a signal having amplitude modulations responsive to the common amplitude-modulation signal and phase modulations responsive to the common phase-modulation signal.
摘要翻译：极性调制发射机提供用于确定发射机的幅度调制路径延迟的分离架构，并且包括分离电源调制电路和分离功率放大器电路。分离电源调制电路包括公共供电输入，并且被配置为在相应的信号输入端接收公共的幅度调制信号，并响应于共同的幅度调制信号而输出第一和第二调制电源信号。分离式功率放大器电路包括第一和第二电源输入，每个第一和第二电源输入分别耦合到相应的调制电源信号中的一个，第一和第二信号输入以及响应于相应的电源和信号输入的第一和第二输出，分离功率放大器电路被配置为在其信号输入处接收公共相位调制信号，并组合其输出以形成响应于公共调幅信号的幅度调制和响应于公共相位调制信号的相位调制的信号。

9. 发明申请

US20060139092A1 Load mismatch adaptation in coupler-based amplifiers 有权
标题翻译：基于耦合器的放大器的负载不匹配适配
公开(公告)号：US20060139092A1
公开(公告)日：2006-06-29
申请号：US11025497
申请日：2004-12-29
申请人： Lars Sundstrom , Per-Olof Brandt
发明人： Lars Sundstrom , Per-Olof Brandt
IPC分类号： H03F3/68
CPC分类号： H03F1/0238 , H03F1/32 , H03F3/191 , H03F3/602 , H03F2200/192 , H03F2200/198 , H03F2200/204
摘要： Coupler-based amplifiers provide a measure of load mismatch based on the difference between the two output signal amplitudes from the amplifiers. This measure can be used to control variable matching networks (VMNs) or amplifier supply voltages to maintain constant distortion levels and high power transfer/efficiency and even to control output power. Load mismatch is measured by comparing the amplifier device output amplitudes and adjusting the circuit based on the comparison to counteract undesired behavior, such as increasing distortion levels.
摘要翻译：基于耦合器的放大器基于来自放大器的两个输出信号幅度之间的差异来提供负载失配的量度。该措施可用于控制可变匹配网络（VMN）或放大器电源电压，以保持恒定的失真水平和高功率传输/效率，甚至控制输出功率。通过比较放大器器件输出幅度并根据比较调整电路以抵消不期望的行为（例如增加失真电平）来测量负载失配。

10. 发明申请

US20050124554A1 Spermidine derivatives for the treatment of chronic neurodegenerative diseases 审中-公开
标题翻译：亚精胺衍生物用于治疗慢性神经变性疾病
公开(公告)号：US20050124554A1
公开(公告)日：2005-06-09
申请号：US10503437
申请日：2003-02-03
申请人： Barclay Morrison , Ashley Pringle , Lars Sundstrom , Ernst Wulfert
发明人： Barclay Morrison , Ashley Pringle , Lars Sundstrom , Ernst Wulfert
IPC分类号： A61P1/04 , A61K31/155 , A61K31/16 , A61K31/405 , A61P9/10 , A61P21/00 , A61P25/14 , A61P25/16 , A61P25/28 , A61P29/00 , A61P37/00 , A61P39/06 , A61K38/04 , A61K31/165
CPC分类号： A61K31/405 , A61K31/155 , A61K31/16
摘要： Compounds of the general formula (I): are useful in treating chronic neurodegenerative diseases or conditions in mammals, such as Alzheimer's Disease, Parkinson's Disease, Huntington's Chorea and Multiple Sclerosis. In formula (I), a=3 or 4; b=3 or 4 provided that a+b≦7; c is an integer from 1 to 5; d is 0 or 1.
摘要翻译：通式（I）的化合物可用于治疗哺乳动物如阿尔茨海默病，帕金森病，亨廷顿氏舞蹈病和多发性硬化症中的慢性神经变性疾病或病症。在式（I）中，a = 3或4; b = 3或4，条件是a + b <= 7; c是1至5的整数; d为0或1。

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