-
公开(公告)号：US07848367B2
公开(公告)日：2010-12-07
申请号：US11896162
申请日：2007-08-30
IPC分类号： H04J3/02
CPC分类号： H04J3/0685 , H04J3/047 , Y10S370/907
摘要： High-speed, high-performance, low-power transponders, serializers and deserializers are disclosed. A serializer may include a serdes framer interface (SFI) circuit, a clock multiplier unit, and a multiplexing circuit. A deserializer may include an input receiver circuit for receiving and adjusting an input data signal, a clock and data recovery circuit (CDR) for recovering clock and data signals, a demultiplexing circuit for splitting one or more data channels into a higher number of data channels, and a serdes framer interface (SFI) circuit for generating a reference channel and generating output data channels to be sent to a framer. The input receiver circuit may include a limiting amplifier. Each of the serializer and deserializer may further include a pseudo random pattern generator and error checker unit. The serializer and deserializer each may be integrated into its respective semiconductor chip or both may be integrated into a single semiconductor chip.
摘要翻译： 公开了高速，高性能，低功率转发器，串行器和解串器。 串行器可以包括serdes成帧器接口（SFI）电路，时钟乘法器单元和复用电路。 解串器可以包括用于接收和调整输入数据信号的输入接收器电路，用于恢复时钟和数据信号的时钟和数据恢复电路（CDR），用于将一个或多个数据信道分成更多数量的数据信道的解复用电路 以及用于产生参考信道并产生要发送到成帧器的输出数据信道的Serdes成帧器接口（SFI）电路。 输入接收机电路可以包括限幅放大器。 串行器和解串器中的每一个还可以包括伪随机模式发生器和错误检查器单元。 串行器和解串器各自可以集成到其相应的半导体芯片中，或者两者可以集成到单个半导体芯片中。
-
公开(公告)号：US07286572B2
公开(公告)日：2007-10-23
申请号：US10338972
申请日：2003-01-10
IPC分类号： H04J3/02
CPC分类号： H04J3/0685 , H04J3/047 , Y10S370/907
摘要： An integrated circuit includes a serdes framer interface (SFI) circuit for receiving a first set of data channels and a reference channel, generating first logic levels for the first set of data channels, and realigning the first set of data channels relative to a reference channel. The integrated circuit further includes a multiplexing circuit for receiving a second set of data channels and for merging the second set of data channels into one or more data channels. The second set of data channels is generated based on the first set of data channels. A data rate of the one or more data channels is higher than a data rate of the second set of data channels.
摘要翻译： 集成电路包括用于接收第一组数据信道和参考信道的serdes成帧器接口（SFI）电路，为第一组数据信道生成第一逻辑电平，并相对于参考信道重新对准第一组数据信道 。 集成电路还包括多路复用电路，用于接收第二组数据信道并将第二组数据信道合并成一个或多个数据信道。 基于第一组数据信道生成第二组数据信道。 一个或多个数据信道的数据速率高于第二组数据信道的数据速率。
-
公开(公告)号：US06744325B2
公开(公告)日：2004-06-01
申请号：US10115400
申请日：2002-04-03
IPC分类号： H03B2700
CPC分类号： H03B27/00 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B2200/0078
摘要： A quadrature ring oscillator for high clock-rate applications is disclosed. A quadrature LC ring oscillator may use two stages of LC oscillators and variable mixers to provide consistent oscillation even at high clock rates. One stage of the quadrature ring oscillator comprises a first resonating element having an input and an output, and a first variable summer having L and P inputs and an output, with its L input being connected to the output of the first resonating element. The output of the first variable summer is connected to the input of the first resonating element The first variable summer may generate its output at a first phase by combining the L and P inputs. A second stage of the LC ring oscillator comprises a second resonating element, which has an input and an output, with its output being connected to the P input of the first variable summer. An inverter is used to produce an inverted signal of the output of the first resonating element. This stage also comprises a second variable summer having L and P inputs and an output, with its output connected to the input of the second resonating element. The P input of this second variable summer is connected to the inverted signal from the inverter and the L input is connected to the output of the second resonating element. The second variable summer may generate its output at a second phase by combining its L and P inputs.
摘要翻译： 公开了一种用于高时钟速率应用的正交环形振荡器。 正交LC环形振荡器可以使用两级LC振荡器和可变混频器，即使在高时钟速率下也能提供一致的振荡。 正交环形振荡器的一级包括具有输入和输出的第一谐振元件和具有L和P输入的第一可变加法器和输出，其L输入端连接到第一谐振元件的输出端。 第一可变加法器的输出连接到第一谐振元件的输入。第一可变加法器可以通过组合L和P输入在第一阶段产生其输出。 LC环形振荡器的第二级包括具有输入和输出的第二谐振元件，其输出端连接到第一可变加法器的P输入端。 逆变器用于产生第一谐振元件的输出的反相信号。 该级还包括具有L和P输入的第二可变加法器和输出，其输出连接到第二谐振元件的输入。 该第二可变加法器的P输入端连接到来自反相器的反相信号，L输入端连接到第二谐振元件的输出端。 第二个可变夏季可以通过组合其L和P输入在第二阶段产生其输出。
-
公开(公告)号：US07155193B2
公开(公告)日：2006-12-26
申请号：US10806682
申请日：2004-03-22
IPC分类号： H04B1/38
摘要： A multi-channel filtering system for use with a transceiver includes a front-end multi-pole, multi-throw switch, a back-end multi-pole, multi-throw switch, and a plurality of filters. The front-end switch includes a receive pole, a transmit pole, and a plurality of switch throws. The back-end switch also includes a receive pole, a transmit pole, and a plurality of switch throws. Each of the plurality of filters has first and second ports, each first port coupled to one of the switch throws of the front-end switch, and each second port coupled to one of the switch throws of the back-end switch. Using this configuration, filters of differing bandwidths can be switched in during signal reception and/or transmission, thereby tailoring the communication rate to the particular conditions.
摘要翻译： 用于收发器的多通道滤波系统包括前端多极，多掷开关，后端多极，多掷开关和多个滤波器。 前端开关包括接收极，发射极和多个开关掷。 后端开关还包括接收极，发射极和多个开关掷。 多个滤波器中的每一个具有第一和第二端口，每个第一端口耦合到前端开关的开关引脚之一，并且每个第二端口耦合到后端开关的一个开关引脚。 使用该配置，可以在信号接收和/或传输期间切换不同带宽的滤波器，从而根据特定条件定制通信速率。
-
5.发明授权Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US07965988B2
公开(公告)日：2011-06-21
申请号：US12575458
申请日：2009-10-07
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a method for off-line calibration of a radio frequency (RF) communication system may include one or more of the following: enabling an off-line calibration mode for an RF communication system; generating an off-line calibration signal; applying to a frequency converter a first off-line calibration signal corresponding to the generated off-line calibration signal; translating the first off-line calibration signal into a second off-line calibration signal; evaluating one or more calibration adjustment signals associated with the calibration signal to reduce error in the communication system, wherein the one or more calibration adjustment signals may include an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances; storing one or more calibration adjustment signals; disabling the off-line calibration mode; applying a communication signal; and adjusting the communication signal based on the stored one or more calibration adjustment signals.
摘要翻译： 用于射频（RF）通信系统的离线校准的方法的示例可以包括以下中的一个或多个：启用用于RF通信系统的离线校准模式; 产生离线校准信号; 向频率转换器施加对应于所生成的离线校准信号的第一离线校准信号; 将所述第一离线校准信号转换为第二离线校准信号; 评估与所述校准信号相关联的一个或多个校准调节信号以减少所述通信系统中的误差，其中所述一个或多个校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位中的至少一个相关联的不平衡参数 不平衡 存储一个或多个校准调整信号; 禁用离线校准模式; 应用通信信号; 以及基于所存储的一个或多个校准调整信号来调整通信信号。
-
6.发明申请APPARATUS AND METHOD FOR CALIBRATION OF GAIN AND/OR PHASE IMBALANCE AND/OR DC OFFSET IN A COMMUNICATION SYSTEM 有权用于在通信系统中校准增益和/或相位不平衡和/或直流偏移的装置和方法公开(公告)号：US20100022199A1
公开(公告)日：2010-01-28
申请号：US12575457
申请日：2009-10-07
IPC分类号： H04B1/40
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a radio frequency (RF) receiver system for communication may include a receive channel frequency converter configured to provide a second receive calibration signal during a receive calibration mode based on a first receive calibration signal and a receive reference signal. The system may include a receive pre-distortion module coupled to the receive channel frequency converter. The receive pre-distortion module may be configured to provide a fourth receive calibration signal during the receive calibration mode based on a third receive calibration signal and one or more receive calibration adjustment signals. The one or more receive calibration adjustment signals may comprise an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances.
摘要翻译： 用于通信的射频（RF）接收机系统的示例可以包括接收信道频率转换器，其被配置为在基于第一接收校准信号和接收参考信号的接收校准模式期间提供第二接收校准信号。 该系统可以包括耦合到接收信道频率转换器的接收预失真模块。 接收预失真模块可以被配置为在接收校准模式期间基于第三接收校准信号和一个或多个接收校准调整信号来提供第四接收校准信号。 一个或多个接收校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位不平衡中的至少一个相关联的不平衡参数。
-
7.发明申请Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US20070298733A1
公开(公告)日：2007-12-27
申请号：US11590278
申请日：2006-10-30
IPC分类号： H04B1/04
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： A radio frequency transceiver for off-line transmit and receive calibrations includes: a transmit pre-distortion module configured to receive a transmit calibration signal during a transmit calibration mode, a transmit communication signal during a transmit communication operation mode, and one or more transmit calibration adjustment signals; a transmit channel frequency converter; and a transmit calibration module configured to provide the one or more transmit calibration adjustment signals and the transmit calibration signal to the transmit pre-distortion module. It may also include a receive channel frequency converter; a receive pre-distortion module configured to receive a receive calibration signal during the receive calibration mode, a receive communication signal during a receive communication operation mode, and one or more receive calibration adjustment signals; and a receive calibration module configured to provide the one or more receive calibration adjustment signals to the receive pre-distortion module and a receive calibration signal to the transmit pre-distortion module.
摘要翻译： 用于离线发射和接收校准的射频收发器包括：发射预失真模块，被配置为在发射校准模式期间接收发射校准信号，在发射通信操作模式期间接收发射校准信号，以及一个或多个发射校准 调整信号; 发射信道变频器; 以及发射校准模块，被配置为将所述一个或多个发射校准调整信号和所述发射校准信号提供给所述发射预失真模块。 它还可以包括接收频道变频器; 接收预失真模块，被配置为在接收校准模式期间接收接收校准信号，接收通信操作模式期间的接收通信信号以及一个或多个接收校准调整信号; 以及接收校准模块，其被配置为向所述接收预失真模块提供所述一个或多个接收校准调整信号，以及向所述发射预失真模块提供接收校准信号。
-
8.发明授权Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US07974593B2
公开(公告)日：2011-07-05
申请号：US12575455
申请日：2009-10-07
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a radio frequency (RF) transmitter system for communication may include a transmit pre-distortion module configured to provide a second transmit calibration signal during a transmit calibration mode based on a first transmit calibration signal and one or more transmit calibration adjustment signals. The one or more transmit calibration adjustment signals may include an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances. The system may include a transmit channel frequency converter coupled to the transmit pre-distortion module. The transmit channel frequency converter may be configured to provide a fourth transmit calibration signal during the transmit calibration mode based on a third transmit calibration signal and a transmit reference signal.
摘要翻译： 用于通信的射频（RF）发射机系统的示例可以包括被配置为在发射校准模式期间基于第一发射校准信号和一个或多个发射校准调整信号来提供第二发射校准信号的发射预失真模块。 一个或多个发射校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位不平衡中的至少一个相关联的不平衡参数。 该系统可以包括耦合到发射预失真模块的发射信道频率转换器。 发射信道频率转换器可以被配置为基于第三发射校准信号和发射参考信号在发射校准模式期间提供第四发射校准信号。
-
公开(公告)号：US20090074407A1
公开(公告)日：2009-03-19
申请号：US12210152
申请日：2008-09-12
申请人： Craig A. HORNBUCKLE , David A. Rowe
发明人： Craig A. HORNBUCKLE , David A. Rowe
CPC分类号： H04J3/047 , H04B10/532 , H04B10/5561 , H04J3/0691 , H04J14/06 , H04L27/2067 , H04L27/36
摘要： A communication system includes a multiplexer configured to multiplex a first set of data channels into a first data channel and to multiplex a second set of data channels into a second data channel, and a delay adjuster configured to adjustably delay the first data channel based on a delay adjust command. The communication system also includes a first amplifier configured to amplify the delayed first channel into a first output data channel, and a second amplifier configured to amplify the second data channel into a second output data channel. The communication system further includes a first driver configured to convert the first output data channel into a first drive signal to drive an optical modulator, and a second driver configured to convert the second output data channel into a second drive signal to drive the optical modulator.
摘要翻译： 通信系统包括多路复用器，其被配置为将第一组数据信道多路复用到第一数据信道中，并将第二组数据信道复用到第二数据信道中;以及延迟调整器，被配置为可调节地延迟第一数据信道， 延时调整指令。 通信系统还包括第一放大器，其被配置为将延迟的第一信道放大为第一输出数据信道，以及第二放大器，被配置为将第二数据信道放大为第二输出数据信道。 通信系统还包括配置成将第一输出数据信道转换为第一驱动信号以驱动光调制器的第一驱动器，以及被配置为将第二输出数据信道转换为第二驱动信号以驱动光调制器的第二驱动器。
-
10.发明授权Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US07907916B2
公开(公告)日：2011-03-15
申请号：US12575457
申请日：2009-10-07
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a radio frequency (RF) receiver system for communication may include a receive channel frequency converter configured to provide a second receive calibration signal during a receive calibration mode based on a first receive calibration signal and a receive reference signal. The system may include a receive pre-distortion module coupled to the receive channel frequency converter. The receive pre-distortion module may be configured to provide a fourth receive calibration signal during the receive calibration mode based on a third receive calibration signal and one or more receive calibration adjustment signals. The one or more receive calibration adjustment signals may comprise an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances.
摘要翻译： 用于通信的射频（RF）接收机系统的示例可以包括接收信道频率转换器，其被配置为在基于第一接收校准信号和接收参考信号的接收校准模式期间提供第二接收校准信号。 该系统可以包括耦合到接收信道频率转换器的接收预失真模块。 接收预失真模块可以被配置为在接收校准模式期间基于第三接收校准信号和一个或多个接收校准调整信号来提供第四接收校准信号。 一个或多个接收校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位不平衡中的至少一个相关联的不平衡参数。
-
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.036 秒)
