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11. 发明申请

US20120207196A1 High-Speed Signaling Systems with Adaptable Pre-Emphasis and Equalization 有权
公开(公告)号：US20120207196A1
公开(公告)日：2012-08-16
申请号：US13452513
申请日：2012-04-20
申请人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian Leibowitz
发明人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian Leibowitz
IPC分类号： H04L27/01 , H04B15/00 , H04B17/00 , H04B1/38
CPC分类号： H04L27/01 , H04L1/0026 , H04L7/0025 , H04L7/0087 , H04L7/0337 , H04L25/0272 , H04L25/028 , H04L25/03057 , H04L25/03343 , H04L25/03885 , H04L25/497 , H04L2025/03503 , H04W52/20 , H04W52/225 , Y02D70/00
摘要： A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.

12. 发明申请

US20110310949A1 High-Speed Signaling Systems with Adaptable Pre-Emphasis and Equalization 有权
标题翻译：具有适应性强调和均衡的高速信号系统
公开(公告)号：US20110310949A1
公开(公告)日：2011-12-22
申请号：US13215951
申请日：2011-08-23
申请人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian Leibowitz
发明人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian Leibowitz
IPC分类号： H03K5/159
CPC分类号： H04L27/01 , H04L1/0026 , H04L7/0025 , H04L7/0087 , H04L7/0337 , H04L25/0272 , H04L25/028 , H04L25/03057 , H04L25/03343 , H04L25/03885 , H04L25/497 , H04L2025/03503 , H04W52/20 , H04W52/225 , Y02D70/00
摘要： A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
摘要翻译：一个信令系统包括一个预先强调的发射机和一个通过高速信号路径相互耦合的均衡接收机。接收机测量从发射机传送的数据的质量。控制器使用该信息和其他信息来自适应地建立适当的发送预加重和接收均衡设置，例如，选择信令系统提供一些最小通信带宽而不超过所需误码率的最低功率设置。

13. 发明授权

US07199615B2 High speed signaling system with adaptive transmit pre-emphasis and reflection cancellation 有权
标题翻译：具有自适应发射预加重和反射消除的高速信号系统
公开(公告)号：US07199615B2
公开(公告)日：2007-04-03
申请号：US11386984
申请日：2006-03-21
申请人： Vladimir M. Stojanovic , Andrew Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
发明人： Vladimir M. Stojanovic , Andrew Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H03K19/0175
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A signaling system having an equalizing transmitter and equalizing receiver. The equalizing transmitter transmits a signal to a receive circuit. A first sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a first threshold, and a second sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a second threshold. A drive strength of the equalizing transmitter and a drive strength of an equalizing signal driver within the equalizer are adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds.
摘要翻译：一种具有均衡发射机和均衡接收机的信令系统。均衡发射机将信号发送到接收电路。均衡接收器内的第一采样电路对信号进行采样以确定信号是否超过第一阈值，并且均衡接收器内的第二采样电路对信号进行采样以确定信号是否超过第二阈值。至少部分地基于第一信号是否超过第一和第二阈值来调整均衡器的驱动强度和均衡器内均衡信号驱动器的驱动强度。

14. 发明申请

US20070047635A1 Signaling system with data correlation detection 审中-公开
标题翻译：具有数据相关检测的信号系统
公开(公告)号：US20070047635A1
公开(公告)日：2007-03-01
申请号：US11211351
申请日：2005-08-24
申请人： Vladimir Stojanovic , Andrew Ho , Fred Chen , Simon Li
发明人： Vladimir Stojanovic , Andrew Ho , Fred Chen , Simon Li
IPC分类号： H03H7/30 , H04L27/06
CPC分类号： H04L25/03006
摘要： Conditionally updating equalization tap weights within an equalized signaling system based on a measure of correlation that indicates a difference between the number of received data values that have matching bits at a first pair of predetermined bit positions, and the number of received data values that have non-matching bits at the first pair of predetermined bit positions.
摘要翻译：基于指示在第一对预定比特位置具有匹配比特的接收数据值的数目之间的差异的相关性测量值以及具有非均衡信令系统的接收数据值的数量，在均衡信令系统内有条件地更新均衡抽头权重 - 在第一对预定位位置匹配位。

15. 发明授权

US07176721B2 Signal receiver with data precessing function 有权
标题翻译：具有数据进位功能的信号接收器
公开(公告)号：US07176721B2
公开(公告)日：2007-02-13
申请号：US11022291
申请日：2004-12-24
申请人： Andrew Ho , Vladimir M. Stojanovic
发明人： Andrew Ho , Vladimir M. Stojanovic
IPC分类号： H03K17/16
CPC分类号： H04L25/03057 , H04L25/028 , H04L25/0292 , H04L25/03343 , H04L25/061 , H04L25/4906
摘要： In a data-precessing receiver, a sampling circuit generates a plurality of samples of an incoming signal and stores the plurality of samples one after another in a first storage buffer. A first subset of the plurality of samples are transferred from the first storage buffer to a decoder circuit in response to each assertion of a first control signal, and a second subset of the plurality of samples are transferred from the first storage buffer to a tap weight update circuit in response to each assertion of a second control signal, the second strobe signal being asserted asynchronously with respect to the first control signal. The tap weight update circuit generates a plurality of updated tap weights based, at least in part, on the second subset of the plurality of samples.
摘要翻译：在数据进位接收机中，采样电路产生输入信号的多个采样，并将多个样本依次存储在第一存储缓冲器中。响应于每个断言第一控制信号，多个样本的第一子集从第一存储缓冲器传送到解码器电路，并且多个样本的第二子集从第一存储缓冲器传送到抽头权重响应于每个断言第二控制信号的更新电路，所述第二选通信号相对于所述第一控制信号被异步地断言。抽头加权更新电路至少部分地基于多个样本的第二子集生成多个更新抽头加权。

16. 发明申请

US20070025488A1 RAM-DAC for transmit preemphasis 审中-公开
标题翻译： RAM-DAC用于传输预加重
公开(公告)号：US20070025488A1
公开(公告)日：2007-02-01
申请号：US11193916
申请日：2005-07-29
申请人： Andrew Ho , Fred Chen , Jared Zerbe
发明人： Andrew Ho , Fred Chen , Jared Zerbe
IPC分类号： H04L7/00
CPC分类号： H04L25/03834 , H03H17/0294
摘要： Described are transmitters with RAM-DAC based pre-emphasis filters that can be updated adaptively without interfering with data transmission. The memory within the RAM-DAC is divided into active and inactive memory locations, in which active memory locations are those to be accessed in the near future, and consequently cannot be updated (written to) at a given time due without inducing a read/write conflict. One embodiment monitors incoming memory addresses to find an adequate time window for a write to take place without a read interference. Another embodiment includes two memory blocks with similar address space, one of which may be updated as the other is used to for data transmission. Some embodiments employ a RAM-DAC with reduced memory size and complexity.
摘要翻译：描述的是具有基于RAM-DAC的预加重滤波器的发射器，其可以自适应地更新而不干扰数据传输。 RAM-DAC内的存储器被分为有源和非活动存储器位置，其中有效存储器位置是在不久的将来被访问的存储器位置，因此不能在给定时间更新（写入），而不会引起读/ 写冲突。一个实施例监视进入的存储器地址以找到足够的时间窗口，以便在没有读取干扰的情况下进行写入。另一个实施例包括具有类似地址空间的两个存储器块，其中之一可以被更新，而另一个用于数据传输。一些实施例采用具有减小的存储器大小和复杂性的RAM-DAC。

17. 发明授权

US09094238B2 High-speed signaling systems with adaptable pre-emphasis and equalization 有权
公开(公告)号：US09094238B2
公开(公告)日：2015-07-28
申请号：US13216047
申请日：2011-08-23
申请人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian S. Leibowitz
发明人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian S. Leibowitz
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159 , H04L27/01 , H04L1/00 , H04L7/033 , H04L25/03 , H04L25/497 , H04W52/20 , H04L7/00 , H04L25/02 , H04W52/22
CPC分类号： H04L27/01 , H04L1/0026 , H04L7/0025 , H04L7/0087 , H04L7/0337 , H04L25/0272 , H04L25/028 , H04L25/03057 , H04L25/03343 , H04L25/03885 , H04L25/497 , H04L2025/03503 , H04W52/20 , H04W52/225 , Y02D70/00
摘要： A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.

18. 发明授权

US08989249B2 High-speed signaling systems with adaptable pre-emphasis and equalization 有权
标题翻译：具有适应性预加重和均衡的高速信号系统
公开(公告)号：US08989249B2
公开(公告)日：2015-03-24
申请号：US13215951
申请日：2011-08-23
申请人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian S. Leibowitz
发明人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian S. Leibowitz
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159 , H04L27/01 , H04L1/00 , H04L7/033 , H04L25/03 , H04L25/497 , H04W52/20 , H04L7/00 , H04L25/02 , H04W52/22
CPC分类号： H04L27/01 , H04L1/0026 , H04L7/0025 , H04L7/0087 , H04L7/0337 , H04L25/0272 , H04L25/028 , H04L25/03057 , H04L25/03343 , H04L25/03885 , H04L25/497 , H04L2025/03503 , H04W52/20 , H04W52/225 , Y02D70/00
摘要： A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
摘要翻译：一个信令系统包括一个预先强调的发射机和一个通过高速信号路径相互耦合的均衡接收机。接收机测量从发射机传送的数据的质量。控制器使用该信息和其他信息来自适应地建立适当的发送预加重和接收均衡设置，例如，选择信令系统提供一些最小通信带宽而不超过所需误码率的最低功率设置。

19. 发明申请

US20110305271A1 High-Speed Signaling Systems With Adaptable Pre-Emphasis and Equalization 有权
标题翻译：具有适应性强调和均衡的高速信号系统
公开(公告)号：US20110305271A1
公开(公告)日：2011-12-15
申请号：US13216047
申请日：2011-08-23
申请人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian Leibowitz
发明人： Jared L. Zerbe , Fred F. Chen , Andrew Ho , Ramin Farjad-Rad , John W. Poulton , Kevin S. Donnelly , Brian Leibowitz
IPC分类号： H03H7/40
CPC分类号： H04L27/01 , H04L1/0026 , H04L7/0025 , H04L7/0087 , H04L7/0337 , H04L25/0272 , H04L25/028 , H04L25/03057 , H04L25/03343 , H04L25/03885 , H04L25/497 , H04L2025/03503 , H04W52/20 , H04W52/225 , Y02D70/00
摘要： A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
摘要翻译：一个信令系统包括一个预先强调的发射机和一个通过高速信号路径相互耦合的均衡接收机。接收机测量从发射机传送的数据的质量。控制器使用该信息和其他信息来自适应地建立适当的发送预加重和接收均衡设置，例如，选择信令系统提供一些最小通信带宽而不超过所需误码率的最低功率设置。

20. 发明授权

US07672380B2 Noise-tolerant signaling schemes supporting simplified timing and data recovery 有权
标题翻译：支持简化时序和数据恢复的耐噪声信令方案
公开(公告)号：US07672380B2
公开(公告)日：2010-03-02
申请号：US11895415
申请日：2007-08-23
申请人： Andrew Ho , Vladimir Stojanovic , Fred F. Chen , Elad Alon , Mark A. Horowitz
发明人： Andrew Ho , Vladimir Stojanovic , Fred F. Chen , Elad Alon , Mark A. Horowitz
IPC分类号： H04B3/00 , H04B1/10 , H03D1/04 , H04L5/16
CPC分类号： H04L47/10 , H04L5/20 , H04L25/0276
摘要： Described are communication systems that convey differential and common-mode signals over the same differential channel. Noise-tolerant communication schemes use low-amplitude common-mode signals that are easily rejected by differential receivers, thus allowing for very high differential data rates. Some embodiments employ the common-mode signals to transmit backchannel signals for adjusting the characteristics of the differential transmitter. Backchannel control signals are effectively conveyed even if the forward channel transmitter is so maladjusted that the received differential data is unrecognizable. Systems in accordance with the above-described embodiments obtain these advantages without additional pins or communications channels, and are compatible with both AC-coupled and DC-coupled communications channels. Data coding schemes and corresponding data recovery circuits eliminate the need for complex, high-speed CDR circuits.
摘要翻译：描述了通过相同的差分通道传送差分和共模信号的通信系统。耐噪声通信方案使用容易被差分接收机拒绝的低振幅共模信号，从而允许非常高的差分数据速率。一些实施例采用共模信号来发送用于调整差分发射机的特性的反向信道信号。即使前向信道发射机被调整不正确，接收到的差分数据是无法识别的，反向信道控制信号也被有效地传送。根据上述实施例的系统在没有附加引脚或通信信道的情况下获得这些优点，并且与AC耦合和DC耦合通信信道兼容。数据编码方案和相应的数据恢复电路不需要复杂的高速CDR电路。

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