公开(公告)号：EP1703633A3

公开(公告)日：2009-01-07

申请号：EP06004142.3

申请日：2006-03-01

申请人： Broadcom Corporation

发明人： Ngai, William ,  Tan, Loke ,  Zou, Hanli

IPC分类号： H03D7/16 ,  H03D3/00 ,  H04L27/38

CPC分类号： H04L27/3863 ,  H03D3/009

摘要： An apparatus and method for correcting IQ imbalance are presented. An exemplary receiver for processing I and Q signals from a tuner includes: a non-decision directed (NDD) imbalance canceller coupled to receive the I and Q signals, and a decision directed (DD) imbalance canceller coupled to the non-decision directed imbalance canceller. The DD imbalance canceller converges after the NDD imbalance canceller converges, so as to correct IQ imbalances in the receiver. An exemplary method for processing I and Q signals from a tuner includes: (a) converging a NDD imbalance canceller to correct a majority of IQ imbalances, and (b) subsequently converging a DD imbalance canceller to correct a remainder of IQ imbalances not corrected in step (a). The apparatus and method correct frequency-dependent and frequency-independent IQ imbalances.

公开(公告)号：EP2482465A3

公开(公告)日：2014-12-17

申请号：EP12000189.6

申请日：2012-01-13

申请人： Broadcom Corporation

发明人： Gomez, Ramon Alejandro ,  Currivan, Bruce J. ,  Jaffe, Steven T. ,  Tan, Loke Kun ,  Shin, Young ,  Zou, Hanli ,  He, Lin ,  Dauphinee, Leonard ,  Kolze, Thomas Joseph ,  Gatta, Francesco

IPC分类号： H04B1/00 ,  H04B1/16 ,  H04B1/38

CPC分类号： H04B1/16 ,  H04B1/0003 ,  H04B1/3805 ,  H04B17/20

摘要： A method and apparatus is disclosed to determine communications receiver parameters from multiple channels of a received communications signal and to configure and/or adjust communications receiver parameters to acquire one or more channels from among the multiple channels of the received communications signal. A communications receiver observes a multi-channel communication signal as it passes through a communication channel. The communications receiver determines one or more communications receiver parameters from the multiple channels of the received communications signal. The communications receiver configures and/or adjusts communications receiver parameters to acquire the one or more channels from among the multiple channels of the received communications signal.

摘要翻译： 公开了一种从接收的通信信号的多个信道确定通信接收机参数并且配置和/或调整通信接收机参数以从接收的通信信号的多个信道中获取一个或多个信道的方法和装置。 通信接收机在通过通信信道时观察多信道通信信号。 通信接收机从接收到的通信信号的多个信道确定一个或多个通信接收机参数。 通信接收机配置和/或调整通信接收机参数以从所接收的通信信号的多个信道中获取一个或多个信道。

公开(公告)号：EP2482465A2

公开(公告)日：2012-08-01

申请号：EP12000189.6

申请日：2012-01-13

申请人： Broadcom Corporation

发明人： Gomez, Ramon Alejandro ,  Currivan, Bruce J. ,  Jaffe, Steven T. ,  Tan, Loke Kun ,  Shin, Young ,  Zou, Hanli ,  He, Lin ,  Dauphinee, Leonard ,  Kolze, Thomas Joseph ,  Gatta, Francesco

IPC分类号： H04B1/00 ,  H04B1/16 ,  H04B1/38

CPC分类号： H04B1/16 ,  H04B1/0003 ,  H04B1/3805 ,  H04B17/20

摘要： A method and apparatus is disclosed to determine communications receiver parameters from multiple channels of a received communications signal and to configure and/or adjust communications receiver parameters to acquire one or more channels from among the multiple channels of the received communications signal. A communications receiver observes a multi-channel communication signal as it passes through a communication channel. The communications receiver determines one or more communications receiver parameters from the multiple channels of the received communications signal. The communications receiver configures and/or adjusts communications receiver parameters to acquire the one or more channels from among the multiple channels of the received communications signal.

摘要翻译： 公开了一种从接收的通信信号的多个信道确定通信接收机参数并且配置和/或调整通信接收机参数以从接收的通信信号的多个信道中获取一个或多个信道的方法和装置。 通信接收机在通过通信信道时观察多信道通信信号。 通信接收机从接收到的通信信号的多个信道确定一个或多个通信接收机参数。 通信接收机配置和/或调整通信接收机参数以从所接收的通信信号的多个信道中获取一个或多个信道。

公开(公告)号：EP1703633A2

公开(公告)日：2006-09-20

申请号：EP06004142.3

申请日：2006-03-01

申请人： Broadcom Corporation

发明人： Ngai, William ,  Tan, Loke ,  Zou, Hanli

IPC分类号： H03D7/16

CPC分类号： H04L27/3863 ,  H03D3/009

摘要： An apparatus and method for correcting IQ imbalance are presented. An exemplary receiver for processing I and Q signals from a tuner includes: a non-decision directed (NDD) imbalance canceller coupled to receive the I and Q signals, and a decision directed (DD) imbalance canceller coupled to the non-decision directed imbalance canceller. The DD imbalance canceller converges after the NDD imbalance canceller converges, so as to correct IQ imbalances in the receiver. An exemplary method for processing I and Q signals from a tuner includes: (a) converging a NDD imbalance canceller to correct a majority of IQ imbalances, and (b) subsequently converging a DD imbalance canceller to correct a remainder of IQ imbalances not corrected in step (a). The apparatus and method correct frequency-dependent and frequency-independent IQ imbalances.

摘要翻译： 提出了一种用于校正IQ不平衡的装置和方法。 用于处理来自调谐器的I和Q信号的示例性接收器包括：耦合以接收I和Q信号的非决策导向（NDD）不平衡消除器，以及耦合到非决策导向不平衡的决策导向（DD）不平衡消除器 消除。 在NDD不平衡消除器收敛之后，DD不平衡消除器收敛，从而校正接收机中的IQ不平衡。 用于处理来自调谐器的I和Q信号的示例性方法包括：（a）收敛NDD不平衡消除器以校正大多数IQ不平衡，以及（b）随后收敛DD不平衡消除器以校正未校正的IQ失衡的余数 步骤（a）。 该装置和方法正确的频率依赖和频率无关的IQ失衡。