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1. 发明申请

WO0130013A3 DIAGNOSTICS OF CABLE AND LINK PERFORMANCE FOR A HIGH-SPEED COMMUNICATION SYSTEM 审中-公开
标题翻译：电缆诊断和高速通信系统的链路性能
公开(公告)号：WO0130013A3
公开(公告)日：2002-02-21
申请号：PCT/US0041345
申请日：2000-10-20
申请人： BROADCOM CORP , AGAZZI OSCAR E , HUNG KENNETH PHAN , SORENSEN DAVID I
发明人： AGAZZI OSCAR E , HUNG KENNETH PHAN , SORENSEN DAVID I
IPC分类号： H04L12/26 , H04L1/20 , G06F11/25 , H04L1/00 , H04L25/02 , H04L25/03
CPC分类号： H04L41/0681 , H04L41/22 , H04L43/022 , H04L43/50
摘要： A method and system for performing diagnostic tests on a real-time system controlled by a state machine. A sequence of states recorded as the state machine operates is used to determine error conditions. The sequence of states is compared to expected sequences of states to determine what, if any, errors have occurred. If the real-time system, such as a transceiver in a communication system, has adaptive components, the status of the adaptive components is used to estimate the condition of any external systems coupled to the real-time system.
摘要翻译：一种用于对由状态机控制的实时系统执行诊断测试的方法和系统。记录为状态机的状态序列用于确定错误状况。将状态序列与预期的状态序列进行比较，以确定发生错误（如果有的话）。如果诸如通信系统中的收发器的实时系统具有自适应组件，则使用自适应组件的状态来估计耦合到实时系统的任何外部系统的状况。

2. 发明申请

WO0165788A9 SYSTEM AND METHOD FOR HIGH SPEED COMMUNICATIONS USING DIGITAL SIGNAL PROCESSING 审中-公开
标题翻译：使用数字信号处理的高速通信的系统和方法
公开(公告)号：WO0165788A9
公开(公告)日：2003-01-09
申请号：PCT/US0106776
申请日：2001-02-28
申请人： BROADCOM CORP , AGAZZI OSCAR E , UNGERBOECK GOTTFRIED , PARHI KESHAB K , LUTKEMEYER CHRISTIAN A J , VORENKAMP PIETER , CHAN KEVIN T , WAKAYAMA MYLES H
发明人： AGAZZI OSCAR E , UNGERBOECK GOTTFRIED , PARHI KESHAB K , LUTKEMEYER CHRISTIAN A J , VORENKAMP PIETER , CHAN KEVIN T , WAKAYAMA MYLES H
IPC分类号： H03M1/06 , H03M1/12 , H04L25/03 , H04L25/497
CPC分类号： H04L25/4975 , H03M1/0604 , H03M1/1215 , H04L25/03133 , H04L25/03146 , H04L25/03343 , H04L25/497 , H04L2025/03503
摘要： Various systems and methods related to equalization precoding in a communications channel are disclosed. In one implementation precoding is performed on signals transmitted over an optical channel. In one implementation precoding and decoding operations are performed in parallel to facilitate high speed processing in relatively low cost circuits. Initialization of the precoders may be realized by transmitting information related to the characteristics of the channel between transceiver pairs.
摘要翻译：公开了与通信信道中的均衡预编码相关的各种系统和方法。在一个实现中，对通过光信道发射的信号执行预编码。在一个实现中，并行执行预编码和解码操作以便于在相对低成本的电路中进行高速处理。可以通过发送与收发器对之间的信道的特性相关的信息来实现预编码器的初始化。

3. 发明申请

WO0135527A3 GIGABIT ETHERNET TRANSCEIVER WITH ANALOG FRONT END 审中-公开
标题翻译：具有模拟前端的GIGABIT以太网收发器
公开(公告)号：WO0135527A3
公开(公告)日：2002-03-07
申请号：PCT/US0031394
申请日：2000-11-13
申请人： BROADCOM CORP , BEHZAD ARYA R , BULT KLAAS , GOMEZ RAMON A , LIN CHI HUNG , KWAN TOM W , AGAZZI OSCAR E , CREIGH JOHN L , HATAMIAN MEHDI , KRUSE DAVID E , ABNOUS ARTHUR , SAMUELI HENRY
发明人： BEHZAD ARYA R , BULT KLAAS , GOMEZ RAMON A , LIN CHI-HUNG , KWAN TOM W , AGAZZI OSCAR E , CREIGH JOHN L , HATAMIAN MEHDI , KRUSE DAVID E , ABNOUS ARTHUR , SAMUELI HENRY
IPC分类号： H03G1/00 , H03G3/00 , H03G3/30 , H03G5/10 , H03H11/24 , H02G5/00 , H03F3/72
CPC分类号： H03F1/32 , H03F3/347 , H03F3/505 , H03F2200/211 , H03F2200/252 , H03F2200/421 , H03F2200/513 , H03G1/0088 , H03G3/001 , H03G3/3036 , H03G3/3052 , H03G5/10 , H03H11/245
摘要： Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.
摘要翻译：电路从集成电路可编程增益衰减器中的信号路径中去除开关。可编程增益衰减器和可编程增益放大器通常使用半导体开关在信号电平之间切换。这种开关可能在信号中引入非线性。通过将开关与信号路径隔离，可以提高PGA的线性度。

4. 发明申请

WO0065772A3 PHY CONTROL MODULE FOR A MULTI-PAIR GIGABIT TRANSCEIVER 审中-公开
标题翻译：多对数字收发器的PHY控制模块
公开(公告)号：WO0065772A3
公开(公告)日：2002-01-03
申请号：PCT/US0011123
申请日：2000-04-24
申请人： BROADCOM CORP , AGAZZI OSCAR E
发明人： AGAZZI OSCAR E
IPC分类号： G01R31/30 , G01R31/317 , G01R31/3185 , H04B3/23 , H04B3/32 , H04L1/00 , H04L1/24 , H04L7/00 , H04L7/02 , H04L7/033 , H04L25/03 , H04L25/06 , H04L25/14 , H04L25/49 , H04L25/497
CPC分类号： H04L7/0062 , G01R31/3008 , G01R31/31715 , G01R31/318594 , H04B3/23 , H04B3/32 , H04L1/0054 , H04L1/242 , H04L7/0334 , H04L25/03038 , H04L25/03057 , H04L25/03146 , H04L25/03267 , H04L25/067 , H04L25/14 , H04L25/4917 , H04L25/497 , H04L2025/03363 , H04L2025/03369 , H04L2025/0349 , H04L2025/03503 , H04L2025/03617
摘要： A method for controlling operation of a multi-pair gigabit transceiver. The multi-pair gigabit transceiver comprises a Physical Layer Control module (PHY Control), a Physical Coding Sublayer module (PCS) and a Digital Signal Processing module (DSP). The PHY Control receives user-defined inputs from the Serial Management module and status signals and diagnostics signals from the DSP and the PCS and generates control signals, responsive to the user-defined inputs, the status signals and diagnostics signals, to the DSP and the PCS.
摘要翻译：一种用于控制多对千兆位收发器的操作的方法。多对千兆位收发器包括物理层控制模块（PHY Control），物理编码子层模块（PCS）和数字信号处理模块（DSP）。 PHY控制接收来自串行管理模块的用户定义的输入以及来自DSP和PCS的状态信号和诊断信号，并根据用户定义的输入，状态信号和诊断信号产生控制信号到DSP和 PCS。

5. 发明申请

WO0154317A3 TRELLIS-CODING AND PRE-EQUALISATION FOR OPTICAL CHANNELS 审中-公开
标题翻译：用于光通道的TRELLIS编码和预均衡
公开(公告)号：WO0154317A3
公开(公告)日：2002-03-07
申请号：PCT/US0101532
申请日：2001-01-17
申请人： BROADCOM CORP , AGAZZI OSCAR E
发明人： AGAZZI OSCAR E
IPC分类号： H03M1/06 , H03M1/12 , H04L1/00 , H04L25/03 , H04L25/497 , H04L27/02
CPC分类号： H04L1/006 , H03M1/0604 , H03M1/1215 , H04L1/0041 , H04L1/0054 , H04L25/03146 , H04L25/03343 , H04L25/497 , H04L25/4975
摘要： A method and apparatus for transmission of data on bandwidth limited fiber optic channels. A multilevel signaling alphabet having multiple levels of optical intensity are used to transmit signals on optical channels. In order to counteract the decrease in signal to noise ratio resulting from the use of a multilevel signaling alphabet over a bilevel signaling alphabet trellis encoding of the data to be transmitted is employed. To counteract intersymbol interference due to signaling faster than the Nyquist Rate, equalization methods such as Tomlinson-Harashima precoding and decision feedback equalization are employed.
摘要翻译：一种在带宽限制光纤通道上传输数据的方法和装置。使用具有多级光强度的多级信令字母表来在光信道上传输信号。为了抵消由于在要发送的数据的双层信令字母格局编码中使用多级信令字母表而导致的信噪比的降低。为了抵消由于信令速度比奈奎斯特速率快的码间干扰，采用诸如Tomlinson-Harashima预编码和判决反馈均衡等均衡方法。

6. 发明申请

WO0165788A3 SYSTEM AND METHOD FOR HIGH SPEED COMMUNICATIONS USING DIGITAL SIGNAL PROCESSING 审中-公开
标题翻译：使用数字信号处理的高速通信的系统和方法
公开(公告)号：WO0165788A3
公开(公告)日：2002-02-21
申请号：PCT/US0106776
申请日：2001-02-28
申请人： BROADCOM CORP , AGAZZI OSCAR E , UNGERBOECK GOTTFRIED , PARHI KESHAB K , LUTKEMEYER CHRISTIAN A J , VORENKAMP PIETER , CHAN KEVIN T , WAKAYAMA MYLES H
发明人： AGAZZI OSCAR E , UNGERBOECK GOTTFRIED , PARHI KESHAB K , LUTKEMEYER CHRISTIAN A J , VORENKAMP PIETER , CHAN KEVIN T , WAKAYAMA MYLES H
IPC分类号： H03M1/06 , H03M1/12 , H04L25/03 , H04L25/497
CPC分类号： H04L25/4975 , H03M1/0604 , H03M1/1215 , H04L25/03133 , H04L25/03146 , H04L25/03343 , H04L25/497 , H04L2025/03503
摘要： Various systems and methods related to equalization precoding in a communications channel are disclosed. In one implementation precoding is performed on signals transmitted over an optical channel. In one implementation precoding and decoding operations are performed in parallel to facilitate high speed processing in relatively low cost circuits. Initialization of the precoders may be realized by transmitting information related to the characteristics of the channel between transceiver pairs.
摘要翻译：公开了与通信信道中的均衡预编码相关的各种系统和方法。在一个实现中，对通过光信道发射的信号执行预编码。在一个实现中，并行执行预编码和解码操作以便于在相对低成本的电路中进行高速处理。可以通过发送与收发器对之间的信道的特性相关的信息来实现预编码器的初始化。

7. 发明申请

WO0129991A3 METHOD, APPARATUS AND SYSTEM FOR HIGH-SPEED TRANSMISSION ON FIBER OPTIC CHANNEL 审中-公开
标题翻译：光纤通道高速传输的方法，装置和系统
公开(公告)号：WO0129991A3
公开(公告)日：2002-01-31
申请号：PCT/US0029136
申请日：2000-10-20
申请人： BROADCOM CORP , AGAZZI OSCAR E
发明人： AGAZZI OSCAR E
IPC分类号： H04L1/00 , H04L27/26
CPC分类号： H04L1/0059 , H04L1/0041 , H04L1/0045 , H04L5/0005 , H04L5/0046 , H04L27/2637 , H04L27/2653 , H04L27/2697
摘要： Multi-carrier modulation fiber optic systems constructed using a series of electrical carriers, modulating the data (201) on the electrical carriers (207, 215, 221) and combining the carriers to form a wideband signal (211). The wideband signal can then be intensity modulated on a laser and coupled to a fiber optic channel (213). A receiver may then receive the laser signal from the fiber optic channel and convert it into an electrical signal (301, 325). Multi-carrier modulation may be applied to existing fiber channels, which may be of lower quality. Existing fiber channels may have characteristics which prevent or restrict the transmission of data using intensity modulation at certain frequencies (601). An adaptive multi-carrier modulation transmitter (725) may characterize an existing fiber optic channel and ascertain the overall characteristics of the channel. The transmitter and receiver (825) can then be configured to use various bandwidths and various modulations in order to match the transfer characteristic of the fiber channel (601). A series of adaptive multi-carrier modulation transmitters and receivers can be integrated on a single integrated circuit. If multiple adaptive receivers and transmitters are integrated on a single integrated circuit (917, 919), they may be used to upgrade existing networks by adding different wavelength lasers (903, 905, 907) for the transmission of data in order to achieve any capacity desired. Each receiver and transmitter may characterize the fiber for its particular wavelength laser and may configure the modulation and bandpass to the fiber's characteristics.
摘要翻译：使用一系列电载体构建的多载波调制光纤系统，调制电载体（207,215,221）上的数据（201）并组合载波以形成宽带信号（211）。然后可以在激光器上对宽带信号进行强度调制并耦合到光纤通道（213）。接收器然后可以从光纤通道接收激光信号并将其转换成电信号（301,325）。多载波调制可以应用于可能具有较低质量的现有光纤信道。现有的光纤通道可以具有防止或限制在特定频率下使用强度调制的数据传输的特性（601）。自适应多载波调制发射机（725）可以表征现有光纤信道并确定信道的整体特性。然后可以将发射机和接收机（825）配置为使用各种带宽和各种调制，以便匹配光纤信道（601）的传输特性。一系列自适应多载波调制发射机和接收机可集成在单个集成电路上。如果多个自适应接收机和发射机集成在单个集成电路（917,919）上，则可以通过添加用于数据传输的不同波长激光器（903,905,907）来升级现有网络，以实现任何容量期望。每个接收器和发射器可以表征其特定波长激光器的光纤，并且可以配置对光纤的特性的调制和带通。

8. 发明申请

WO0243340A9 METHOD AND APPARATUS TO IDENTIFY AND CHARACTERIZE NONLINEARITIES IN OPTICAL COMMUNICATIONS CHANNELS 审中-公开
标题翻译：识别和表征光通信信道非线性的方法和装置
公开(公告)号：WO0243340A9
公开(公告)日：2003-02-06
申请号：PCT/US0143625
申请日：2001-11-21
申请人： BROADCOM CORP , AGAZZI OSCAR E
发明人： AGAZZI OSCAR E
IPC分类号： G11B20/10 , H04B10/02 , H04B10/08 , H04B10/18 , H04L25/02
CPC分类号： G11B20/10333 , G11B20/10009 , H04B10/07951 , H04B10/2543
摘要： A method for identifying and modeling nonlinearities in communications channels, particularly optical communication channels. A channel in general is modeled as a summation of linear and non linear terms having memory. The terms are functions of the input to the channel with respect to time, such as a sequence of input bits to the channel. In one embodiment the most recent 5 input bits to the optical channel are used to access a value in a look up tale. The value accessed is then compared to an actual value received from the channel. The difference between the value in the table and the actual channel value may be used to correct the value in the table, for example using a LMS (Least Means Squared) algorithm. When the look up table and the channel converge the look up table contains a model of the channel with memory that can model nonlinearities.
摘要翻译：一种用于识别和建模通信信道，特别是光通信信道中的非线性的方法。通常，通道被建模为具有存储器的线性和非线性项的总和。这些术语是相对于时间到信道的输入的函数，诸如到信道的输入比特序列。在一个实施例中，到光通道的最近的5个输入比特用于访问查询中的值。然后将访问的值与从通道接收的实际值进行比较。表中的值与实际通道值之间的差可用于校正表中的值，例如使用LMS（最小均方）算法。当查找表和通道收敛时，查找表包含具有可以建模非线性的存储器的通道的模型。

9. 发明申请

WO0130013A9 DIAGNOSTICS OF CABLE AND LINK PERFORMANCE FOR A HIGH-SPEED COMMUNICATION SYSTEM 审中-公开
标题翻译：高速通信系统的电缆和连接性能的诊断
公开(公告)号：WO0130013A9
公开(公告)日：2002-08-15
申请号：PCT/US0041345
申请日：2000-10-20
申请人： BROADCOM CORP , AGAZZI OSCAR E , HUNG KENNETH PHAN , SORENSEN DAVID I
发明人： AGAZZI OSCAR E , HUNG KENNETH PHAN , SORENSEN DAVID I
IPC分类号： H04L12/26 , H04L1/20 , G06F11/25 , H04L1/00 , H04L25/02 , H04L25/03
CPC分类号： H04L41/0681 , H04L41/22 , H04L43/022 , H04L43/50
摘要： A method and system for performing diagnostic tests on a real-time system controlled by a state machine. A sequence of states recorded as the state machine operates is used to determine error conditions. The sequence of states is compared to expected sequences of states to determine what, if any, errors have occurred. If the real-time system, such as a transceiver in a communication system, has adaptive components, the status of the adaptive components is used to estimate the condition of any external systems coupled to the real-time system.
摘要翻译：一种用于对由状态机控制的实时系统执行诊断测试的方法和系统。记录为状态机操作的状态序列用于确定错误状态。将状态序列与预期的状态序列进行比较以确定发生了什么（如果有的话）错误。如果实时系统（例如通信系统中的收发器）具有自适应组件，则自适应组件的状态用于估计耦合到实时系统的任何外部系统的状况。

10. 发明申请

WO0243340A2 METHOD AND SYSTEM TO IDENTIFY AND CHARACTERIZE NONLINEARITIES IN OPTICAL COMMUNICATIONS CHANNELS 审中-公开
标题翻译：识别和表征光通信信道非线性的方法和系统
公开(公告)号：WO0243340A2
公开(公告)日：2002-05-30
申请号：PCT/US0143625
申请日：2001-11-21
申请人： BROADCOM CORP , AGAZZI OSCAR E
发明人： AGAZZI OSCAR E
IPC分类号： G11B20/10 , H04B10/02 , H04B10/08 , H04B10/18 , H04L25/02
CPC分类号： G11B20/10333 , G11B20/10009 , H04B10/07951 , H04B10/2543
摘要： A method for identifying and modeling nonlinearities in communications channels, particularly optical communication channels. A channel in general is modeled as a summation of linear and non linear terms having memory. The terms are functions of the input to the channel with respect to time, such as a sequence of input bits to the channel. In one embodiment the most recent 5 input bits to the optical channel are used to access a value in a look up tale. The value accessed is then compared to an actual value received from the channel. The difference between the value in the table and the actual channel value may be used to correct the value in the table, for example using a LMS (Least Means Squared) algorithm. When the look up table and the channel converge the look up table contains a model of the channel with memory that can model nonlinearities. A nonlinear channel having memory may also be modeled in terms of Volterra Kernels, which may equivalently change into a look up table odel using the Hadamard transform. The Volterra Kernel representation also has the added advantage that it can represent a look up table of N table entries in at most N-1 Volterra kernels. In many cases only a few Volterra Kernels are required to model the behavior of the channel. For example embodiments are disclosed in which two Kernels may model a nonlinear fiber optic channel, operating at a wavelength of 850 nanometer through a multimode channel at a data rate of 1 Gigabit per second.
摘要翻译：一种用于识别和建模通信信道，特别是光通信信道中的非线性的方法。通常，通道被建模为具有存储器的线性和非线性项的总和。这些术语是相对于时间到信道的输入的函数，诸如到信道的输入比特序列。在一个实施例中，到光通道的最近的5个输入比特用于访问查询中的值。然后将访问的值与从通道接收的实际值进行比较。表中的值与实际通道值之间的差可用于校正表中的值，例如使用LMS（最小均方）算法。当查找表和通道收敛时，查找表包含具有可以建模非线性的存储器的通道的模型。具有存储器的非线性通道也可以根据Volterra内核来建模，其可以使用Hadamard变换等效地变成查找表odel。 Volterra内核表示还具有附加的优点，它可以代表N个表中最多N-1个Volterra内核的查询表。在许多情况下，只需要几个Volterra内核来建模通道的行为。例如，公开了这样的实施例，其中两个内核可以以每秒1吉比特的数据速率通过多模信道在850纳米的波长下工作的非线性光纤信道建模。

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