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1. 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。

2. 发明申请

US20070297520A1 Noise-tolerant signaling schemes supporting simplified timing and data recovery 有权
公开(公告)号：US20070297520A1
公开(公告)日：2007-12-27
申请号：US11895415
申请日：2007-08-23
申请人： Andrew Ho , Vladimir Stojanovic , Fred Chen , Elad Alon , Mark Horowitz
发明人： Andrew Ho , Vladimir Stojanovic , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H04B1/10
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.

3. 发明申请

US20060158225A1 High speed signaling system with adaptive transmit pre-emphasis and reflection cancellation 有权
公开(公告)号：US20060158225A1
公开(公告)日：2006-07-20
申请号：US11386984
申请日：2006-03-21
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/094
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.

4. 发明申请

US20060132339A1 Circuit calibration system and method 有权
标题翻译：电路校准系统及方法
公开(公告)号：US20060132339A1
公开(公告)日：2006-06-22
申请号：US11015971
申请日：2004-12-17
申请人： Elad Alon , Bruno Garlepp , Vladimir Stojanovic , Andrew Ho , Fred Chen
发明人： Elad Alon , Bruno Garlepp , Vladimir Stojanovic , Andrew Ho , Fred Chen
IPC分类号： H03M1/10
CPC分类号： H03M1/1023
摘要： An integrated circuit device includes one or more calibration paths including one or more devices. A signal generator is coupled to at least one calibration path and configured to provide the calibration path with a calibration signal having known characteristics. A controller is coupled to the signal generator and the calibration path and configured to adjust the signal generator and at least one parameter associated with at least one device in the calibration path.
摘要翻译：集成电路装置包括包括一个或多个装置的一个或多个校准路径。信号发生器耦合到至少一个校准路径并且被配置为向校准路径提供具有已知特征的校准信号。控制器耦合到信号发生器和校准路径并且被配置为调整信号发生器和与校准路径中的至少一个设备相关联的至少一个参数。

5. 发明申请

US20050135489A1 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：US20050135489A1
公开(公告)日：2005-06-23
申请号：US10739823
申请日：2003-12-17
申请人： Andrew Ho , Vladimir Stojanovic , Fred Chen , Elad Alon , Mark Horowitz
发明人： Andrew Ho , Vladimir Stojanovic , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： G06F13/40 , H03K19/003 , H04L5/20 , H04L12/56 , H04B3/00
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。

6. 发明申请

US20050134306A1 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：US20050134306A1
公开(公告)日：2005-06-23
申请号：US10851505
申请日：2004-05-21
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/003 , H04L25/02 , H04L25/03 , H04L25/06 , H04L25/49
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。

7. 发明申请

US20070080718A1 HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS 有权
标题翻译：具有自适应发射预报功能的高速信号系统
公开(公告)号：US20070080718A1
公开(公告)日：2007-04-12
申请号：US11538333
申请日：2006-10-03
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/094
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 high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.
摘要翻译：具有自适应发送预加重的高速信号系统。发射电路具有多个输出驱动器，以将第一信号输出到信号路径上。接收电路被耦合以经由信号路径接收第一信号并被配置为生成第一信号是否超过阈值电平的指示。第一阈值控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整阈值电平。驱动强度控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整多个输出驱动器中的至少一个输出驱动器的驱动强度。

8. 发明申请

US20050134307A1 Offset cancellation in a multi-level signaling system 有权
标题翻译：多级信号系统中的偏移消除
公开(公告)号：US20050134307A1
公开(公告)日：2005-06-23
申请号：US10875086
申请日：2004-06-23
申请人： Vladimir Stojanovic , Andrew Ho , Fred Chen , Bruno Garlepp
发明人： Vladimir Stojanovic , Andrew Ho , Fred Chen , Bruno Garlepp
IPC分类号： H03K19/003 , H04L25/02 , H04L25/03 , H04L25/06 , H04L25/49
CPC分类号： H04L25/03057 , H04L25/028 , H04L25/0292 , H04L25/03343 , H04L25/061 , H04L25/4906
摘要： A receive circuit having a sampling circuit and a threshold generating circuit. The sampling circuit generates a first sample value having either a first state or a second state according whether an incoming signal exceeds a first threshold level, the first threshold level corresponding to a first threshold value. The threshold generating circuit combines a first control value and a second control value to generate the first threshold value and provides the first threshold value to the sampling circuit.
摘要翻译：具有采样电路和阈值产生电路的接收电路。采样电路根据输入信号是否超过第一阈值电平，生成具有第一状态或第二状态的第一采样值，第一阈值电平对应于第一阈值。阈值产生电路组合第一控制值和第二控制值以产生第一阈值，并将第一阈值提供给采样电路。

9. 发明申请

US20050134305A1 High speed signaling system with adaptive transmit pre-emphasis 有权
标题翻译：具有自适应发送预加重的高速信号系统
公开(公告)号：US20050134305A1
公开(公告)日：2005-06-23
申请号：US10740087
申请日：2003-12-17
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/003 , H04L25/02 , H04L25/03 , H04L25/06 , H04L25/49
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 first and second sampling circuits and an output driver circuit. The first sampling circuit samples a first signal generated by the output driver circuit to determine whether the first signal exceeds a first threshold. The second sampling circuit samples the first signal to determine whether the first signal exceeds a second threshold. The drive strength of the output driver circuit is adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds, and the second threshold is adjusted based, at least in part, on whether the first signal exceeds the second threshold.
摘要翻译：一种具有第一和第二采样电路和输出驱动电路的信号系统。第一采样电路对由输出驱动器电路产生的第一信号进行采样，以确定第一信号是否超过第一阈值。第二采样电路对第一信号进行采样以确定第一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输出驱动器电路的驱动强度，并且至少部分地基于第一信号是否超过第二信号来调整第二阈值阈。

10. 发明申请

US20060091930A1 Equalizing transceiver with reduced parasitic capacitance 有权
标题翻译：均衡收发器具有降低的寄生电容
公开(公告)号：US20060091930A1
公开(公告)日：2006-05-04
申请号：US11251139
申请日：2005-10-14
申请人： Fred Chen , Vladimir Stojanovic
发明人： Fred Chen , Vladimir Stojanovic
IPC分类号： G06G7/12
CPC分类号： H04L25/03885
摘要： A signaling circuit having reduced parasitic capacitance. The signaling circuit includes a plurality of driver circuits each having an output coupled to a first output node, and a plurality of select circuits each having an output coupled to a control input of a corresponding one of the driver circuits. Each of the select circuits includes a control input to receive a respective select signal and a plurality of data inputs to receive a plurality of data signals. Each of the select circuits is adapted to select, according to the respective select signal, one of the plurality of data signals to be output to the control input of the corresponding one of the driver circuits.
摘要翻译：具有降低的寄生电容的信令电路。信令电路包括多个驱动器电路，每个驱动器电路各自具有耦合到第一输出节点的输出，以及多个选择电路，每个选择电路具有耦合到相应的一个驱动器电路的控制输入的输出。每个选择电路包括用于接收相应选择信号的控制输入和用于接收多个数据信号的多个数据输入。每个选择电路适于根据相应的选择信号选择要输出到对应的一个驱动器电路的控制输入的多个数据信号之一。

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