专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20140051441A1 Complex Intermediate Frequency Based Receiver Architecture 有权
标题翻译：复杂的基于中频的接收机架构
公开(公告)号：US20140051441A1
公开(公告)日：2014-02-20
申请号：US13983566
申请日：2012-01-25
申请人： Leif Wilhelmsson , Lars Sundstrom , Fenghao Mu
发明人： Leif Wilhelmsson , Lars Sundstrom , Fenghao Mu
IPC分类号： H04W36/30 , H04B17/00
CPC分类号： H04W36/30 , H03D7/18 , H03D2200/0045 , H04B17/327 , H04B17/336
摘要： The disclosure relates to a Complex Intermediate Frequency (CIF)-based receiver adapted to process a received signal comprising a signal component at a desired frequency and a signal component as an image frequency. The CIF-based receiver determines the power of the received signal by calibrating the receiver to minimize the power of the signal component at the image frequency that interferes with the signal component at the desired frequency, introduces signal leakage from the image frequency to intentionally degrade the quality of the signal component at the desired frequency, and determines the power of the signal component at the image frequency based on the amount of degradation.
摘要翻译：本公开涉及一种适用于处理包含期望频率的信号分量和信号分量的接收信号作为图像频率的基于复数中频（CIF）的接收机。基于CIF的接收机通过校准接收机来确定接收信号的功率，以使图像频率处的信号分量的功率最小化，以在期望的频率处干扰信号分量，引入来自图像频率的信号泄漏以故意降级以期望频率的信号分量的质量，并且基于退化量确定图像频率处的信号分量的功率。

2. 发明授权

US08983471B2 Complex intermediate frequency based receiver architecture 有权
标题翻译：基于复杂中频接收机架构
公开(公告)号：US08983471B2
公开(公告)日：2015-03-17
申请号：US13983566
申请日：2012-01-25
申请人： Leif Wilhelmsson , Lars Sundstrom , Fenghao Mu
发明人： Leif Wilhelmsson , Lars Sundstrom , Fenghao Mu
IPC分类号： H04W36/30 , H03D7/18 , H04B17/00
CPC分类号： H04W36/30 , H03D7/18 , H03D2200/0045 , H04B17/327 , H04B17/336
摘要： The disclosure relates to a Complex Intermediate Frequency (CIF)-based receiver adapted to process a received signal comprising a signal component at a desired frequency and a signal component as an image frequency. The CIF-based receiver determines the power of the received signal by calibrating the receiver to minimize the power of the signal component at the image frequency that interferes with the signal component at the desired frequency, introduces signal leakage from the image frequency to intentionally degrade the quality of the signal component at the desired frequency, and determines the power of the signal component at the image frequency based on the amount of degradation.
摘要翻译：本公开涉及一种适用于处理包含期望频率的信号分量和信号分量的接收信号作为图像频率的基于复数中频（CIF）的接收机。基于CIF的接收机通过校准接收机来确定接收信号的功率，以使图像频率处的信号分量的功率最小化，以在期望的频率处干扰信号分量，引入来自图像频率的信号泄漏以故意降级以期望频率的信号分量的质量，并且基于退化量确定图像频率处的信号分量的功率。

3. 发明授权

US08768283B2 Complex intermediate frequency mixer stage and calibration thereof 有权
标题翻译：复杂中频混频器及其校准
公开(公告)号：US08768283B2
公开(公告)日：2014-07-01
申请号：US13823785
申请日：2011-09-16
申请人： Fenghao Mu , Lars Sundström , Leif Wilhelmsson
发明人： Fenghao Mu , Lars Sundström , Leif Wilhelmsson
IPC分类号： H04B1/26 , H04B1/10
CPC分类号： H04B1/06 , H03D7/166 , H03D7/18
摘要： The invention relates to a complex intermediate frequency (CIF) mixer stage, methods of operation thereof, and methods of calibration thereof. The CIF mixer stage comprises numerous individual mixers driven by IF clock signals to down-convert received IF signals into a set of signals at baseband frequency which are further combined to form a lower side band signal and an upper side band signal. The IF clock signals used have a predefined phase relationship among them, which involves tuneable phase skews. By calibration of the conversion gains and the phases of the IF clock signals the gain and phase imbalance introduced in a preceding radio frequency mixer stage and/or the CIF mixer stage can be cancelled. Further, in-channel IQ leakage control can be applied to the lower side band signal and/or the upper side band signal. The CIF mixer stage can thus effectively suppress image interference and IQ leakage.
摘要翻译：本发明涉及复杂中频（CIF）混频器级，其操作方法及其校准方法。 CIF混频器级包括由IF时钟信号驱动的多个单独的混频器，以将接收到的IF信号降频转换成基带频率的一组信号，这些信号进一步组合以形成下边带信号和上边带信号。所使用的IF时钟信号之间具有预定的相位关系，这涉及到可调相位偏移。通过校准转换增益和IF时钟信号的相位，可以取消在前一个射频混频器级和/或CIF混频器级中引入的增益和相位不平衡。此外，信道内IQ泄漏控制可以应用于下边带信号和/或上边带信号。因此，CIF混频器级可以有效地抑制图像干扰和IQ泄漏。

4. 发明授权

US09020077B2 Correction of imbalances in a complex intermediate frequency mixer 有权
公开(公告)号：US09020077B2
公开(公告)日：2015-04-28
申请号：US13823774
申请日：2011-09-16
申请人： Lars Sundström , Fenghao Mu , Leif Wilhelmsson
发明人： Lars Sundström , Fenghao Mu , Leif Wilhelmsson
IPC分类号： H04L27/22 , H04B1/16 , H03D7/16 , H04B1/12
CPC分类号： H04L27/389 , H03D7/166 , H03D2200/0088 , H04B1/126 , H04L25/08
摘要： A complex intermediate frequency mixer (IFM) for frequency translating a received complex intermediate frequency, IF, signal, wherein the received complex IF signal comprises at least two frequency bands located at upper-side and lower-side of 0 Hz, is provided. The complex intermediate frequency mixer comprises a first, second, third and fourth mixer (M1, M2, M3, M4). The complex intermediate frequency mixer further comprises a first, second, third and fourth gain adjusting component (α1, α2, δ2, δ1), connected to a first, second, third and fourth mixer output (M1-out, M2-out, M3-out, M4-out), respectively. Moreover, a first summing unit (S1), connected to a first gain output (α1-out), a fourth gain output (δ1-out) and a third mixer output (M3-out) negated, and second summing unit (S2), connected to the second gain output (α2-out), the third gain output (δ2-out) and the fourth mixer output (M4-out), are configured to output a first baseband complex signal of the received complex IF signal.

5. 发明申请

US20130177113A1 Correction of Imbalances in a Complex Intermediate Frequency Mixer 有权
标题翻译：复杂中频混频器中的不平衡校正
公开(公告)号：US20130177113A1
公开(公告)日：2013-07-11
申请号：US13823774
申请日：2011-09-16
申请人： Lars Sundström , Fenghao Mu , Leif Wilhelmsson
发明人： Lars Sundström , Fenghao Mu , Leif Wilhelmsson
IPC分类号： H04B1/12
CPC分类号： H04L27/389 , H03D7/166 , H03D2200/0088 , H04B1/126 , H04L25/08
摘要： A complex intermediate frequency mixer (IFM) for frequency translating a received complex intermediate frequency, IF, signal, wherein the received complex IF signal comprises at least two frequency bands located at upper-side and lower-side of 0 Hz, is provided. The complex intermediate frequency mixer comprises a first, second, third and fourth mixer (M1, M2, M3, M4). The complex intermediate frequency mixer further comprises a first, second, third and fourth gain adjusting component (α1, α2, δ2, δ1), connected to a first, second, third and fourth mixer output (M1-out, M2-out, M3-out, M4-out), respectively. Moreover, a first summing unit (S1), connected to a first gain output (α1-out), a fourth gain output (δ1-out) and a third mixer output (M3-out) negated, and second summing unit (S2), connected to the second gain output (α2-out), the third gain output (δ2-out) and the fourth mixer output (M4-out), are configured to output a first baseband complex signal of the received complex IF signal.
摘要翻译：一种复合中频混频器（IFM），用于频率转换接收的复合中频IF，信号，其中所接收的复合IF信号包括位于0Hz的上侧和下侧的至少两个频带。复合中频混频器包括第一，第二，第三和第四混频器（M1，M2，M3，M4）。复合中频混频器还包括连接到第一，第二，第三和第四混频器输出（M1-out，M2-out，M3）的第一，第二，第三和第四增益调整组件（α1，α2，Δ2，Δ1） -out，M4-out）。此外，连接到第一增益输出（alpha1-out），第四增益输出（delta1-out）和第三混频器输出（M3-out）的第一求和单元（S1）被否定，以及第二加法单元（S2），连接到第二增益输出（alpha2-out），第三增益输出（delta2-out）和第四混频器输出（M4-out），被配置为输出所接收的复合IF信号的第一基带复信号。

6. 发明申请

US20130183921A1 Complex Intermediate Frequency Mixer Stage and Calibration Thereof 有权
标题翻译：复杂的中频混频器及其校准
公开(公告)号：US20130183921A1
公开(公告)日：2013-07-18
申请号：US13823785
申请日：2011-09-16
申请人： Fenghao Mu , Lars Sundström , Leif Wilhelmsson
发明人： Fenghao Mu , Lars Sundström , Leif Wilhelmsson
IPC分类号： H04B1/06
CPC分类号： H04B1/06 , H03D7/166 , H03D7/18
摘要： The invention relates to a complex intermediate frequency (CIF) mixer stage, methods of operation thereof, and methods of calibration thereof. The CIF mixer stage comprises numerous individual mixers driven by IF clock signals to down-convert received IF signals into a set of signals at baseband frequency which are further combined to form a lower side band signal and an upper side band signal. The IF clock signals used have a predefined phase relationship among them, which involves tunable phase skews. By calibration of the conversion gains and the phases of the IF clock signals the gain and phase imbalance introduced in a preceding radio frequency mixer stage and/or the CIF mixer stage can be cancelled. Further, in-channel IQ leakage control can be applied to the lower side band signal and/or the upper side band signal. The CIF mixer stage can thus effectively suppress image interference and IQ leakage.
摘要翻译：本发明涉及复杂中频（CIF）混频器级，其操作方法及其校准方法。 CIF混频器级包括由IF时钟信号驱动的多个单独的混频器，以将接收到的IF信号降频转换成基带频率的一组信号，这些信号进一步组合以形成下边带信号和上边带信号。所使用的IF时钟信号之间具有预定的相位关系，这涉及可调节的相位偏差。通过校准转换增益和IF时钟信号的相位，可以取消在前一个射频混频器级和/或CIF混频器级中引入的增益和相位不平衡。此外，信道内IQ泄漏控制可以应用于下边带信号和/或上边带信号。因此，CIF混频器级可以有效地抑制图像干扰和IQ泄漏。

7. 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

8. 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。

9. 发明授权

US09882628B2 Self-interference suppression control for a relay node 有权
公开(公告)号：US09882628B2
公开(公告)日：2018-01-30
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： H04B7/15 , 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.

10. 发明申请

US20110053539A1 RADIO ENVIRONMENT SCANNER 有权
标题翻译：无线环境扫描仪
公开(公告)号：US20110053539A1
公开(公告)日：2011-03-03
申请号：US12553710
申请日：2009-09-03
申请人： Lars SUNDSTROM , Thomas Olsson , Leif Wilhelmsson , Chester Park
发明人： Lars SUNDSTROM , Thomas Olsson , Leif Wilhelmsson , Chester Park
IPC分类号： H04B17/00
CPC分类号： H04W24/08 , H04B17/318 , H04B17/382
摘要： A device may include a measurement receiver, a communication receiver, and a transmitter. The measurement receiver may include a receiver (RX) down-conversion component to receive an amplified signal from a low-noise amplifier of the communication receiver, selectively receive a signal from a first local oscillator associated with the communication receiver or a second local oscillator associated with the transmitter, and down-convert the amplified signal to baseband using the received signal from the first local oscillator or the second local oscillator. The measurement receiver may further include a delta-sigma analog-to-digital converter (ADC) to provide low quantization noise only for a particular frequency range to be measured, and a control component to configure the delta-sigma ADC to provide the low quantization noise at the particular frequency range.
摘要翻译：设备可以包括测量接收器，通信接收器和发射器。测量接收机可以包括接收器（RX）下变频部件，以从通信接收机的低噪声放大器接收放大的信号，有选择地从与通信接收器相关联的第一本地振荡器或第二本地振荡器相关联地接收信号并且使用来自第一本地振荡器或第二本地振荡器的接收信号将放大的信号下变频到基带。测量接收机还可以包括仅用于要测量的特定频率范围的低量化噪声的delta-sigma模数转换器（ADC），以及配置Δ-ΣADC以提供低量化的控制部件在特定频率范围内的噪声。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式