专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07046078B2 Method and apparatus for distributed voltage compensation with a voltage driver that is responsive to feedback 失效
标题翻译：具有响应于反馈的电压驱动器进行分布式电压补偿的方法和装置
公开(公告)号：US07046078B2
公开(公告)日：2006-05-16
申请号：US11126643
申请日：2005-05-11
申请人： Huy M. Nguyen , Benedict C. Lau , Adam Chuen-Huei Chou , Roxanne T. Vu
发明人： Huy M. Nguyen , Benedict C. Lau , Adam Chuen-Huei Chou , Roxanne T. Vu
IPC分类号： G05F1/10
CPC分类号： G06F1/26
摘要： An integrated circuit has one or more components that operate with reference to a distributed reference voltage. A reference voltage driver produces a compensated reference voltage, and the compensated reference voltage is distributed to form the distributed reference voltage at the components. Due to factors such as trace resistance and gate leakage, the distributed reference voltage is degraded relative to the compensated reference voltage. The reference voltage driver is responsive to feedback derived from the distributed reference voltage to adjust the compensated reference voltage so that the distributed reference voltage is approximately equal to a nominal reference voltage.
摘要翻译：集成电路具有参考分布式参考电压工作的一个或多个组件。参考电压驱动器产生补偿的参考电压，并且补偿的参考电压被分配以在组件处形成分布式参考电压。由于迹线电阻和栅极泄漏等因素，分布式参考电压相对于补偿参考电压降低。参考电压驱动器响应于从分布式参考电压得到的反馈，以调整补偿的参考电压，使得分布式参考电压近似等于标称参考电压。

2. 发明授权

US07199605B2 Method and apparatus for low capacitance, high output impedance driver 有权
标题翻译：低电容，高输出阻抗驱动器的方法和装置
公开(公告)号：US07199605B2
公开(公告)日：2007-04-03
申请号：US11142574
申请日：2005-06-01
申请人： Leung Yu , Roxanne T. Vu , Benedict C. Lau , Huy M. Nguyen , James A. Gasbarro
发明人： Leung Yu , Roxanne T. Vu , Benedict C. Lau , Huy M. Nguyen , James A. Gasbarro
IPC分类号： H03K19/003
CPC分类号： G11C7/1057 , G11C7/1048 , G11C7/1051 , G11C7/1069 , G11C7/1078 , G11C7/1084 , G11C29/02 , G11C29/022 , G11C29/028 , G11C2029/0401 , G11C2029/5004 , G11C2207/2254 , H03K19/00384
摘要： An apparatus is described having a feedback loop. The feedback loop has an output that approaches a steady state as a data line voltage approaches a reference voltage. The apparatus also includes a driving transistor that drives the data line. The driving transistor has an output impedance that is controlled by the feedback loop output, the feedback loop output keeps the driving transistor output impedance within a high output impedance region when the feedback loop output reaches the steady state.
摘要翻译：描述了具有反馈回路的装置。当数据线电压接近参考电压时，反馈回路具有接近稳态的输出。该装置还包括驱动数据线的驱动晶体管。驱动晶体管具有由反馈环路输出控制的输出阻抗，当反馈环路输出达到稳定状态时，反馈环路输出将驱动晶体管输出阻抗保持在高输出阻抗区域内。

3. 发明授权

US07135903B2 Phase jumping locked loop circuit 有权
标题翻译：相跳锁定回路电路
公开(公告)号：US07135903B2
公开(公告)日：2006-11-14
申请号：US10374251
申请日：2003-02-25
申请人： Jade M. Kizer , Benedict C. Lau , Roxanne T. Vu , Huy M. Nguyen , Leung Yu , Adam Chuen-Huei Chou
发明人： Jade M. Kizer , Benedict C. Lau , Roxanne T. Vu , Huy M. Nguyen , Leung Yu , Adam Chuen-Huei Chou
IPC分类号： H03L7/06
CPC分类号： H03L7/0805 , G06F1/10 , H03L7/07 , H03L7/0814
摘要： A phase-jumping locked loop circuit. The locked loop circuit includes a plurality of differential amplifiers and a biasing circuit switchably coupled to each of the differential amplifiers. Each of the differential amplifiers has inputs to receive a respective pair of clock signals and outputs coupled to a common pair of output signal lines. The biasing circuit comprising a first plurality of biasing transistors coupled in parallel with one another and in series with a first set of the differential amplifiers, and a second plurality of biasing transistors coupled in parallel with one another and in series with a second set of the differential amplifiers.
摘要翻译：一个跳相锁定环路。锁定环电路包括多个差分放大器和可切换地耦合到每个差分放大器的偏置电路。每个差分放大器具有输入以接收耦合到公共输出信号线对的相应的一对时钟信号和输出。偏置电路包括彼此并联并与第一组差分放大器串联耦合的第一多个偏置晶体管，以及第二组多个偏置晶体管，其彼此并联耦合并与第二组差分放大器。

4. 发明授权

US07002367B2 Method and apparatus for low capacitance, high output impedance driver 失效
公开(公告)号：US07002367B2
公开(公告)日：2006-02-21
申请号：US10349403
申请日：2003-01-21
申请人： Leung Yu , Roxanne T. Vu , Benedict C. Lau , Huy M. Nguyen , James A. Gasbarro
发明人： Leung Yu , Roxanne T. Vu , Benedict C. Lau , Huy M. Nguyen , James A. Gasbarro
IPC分类号： H03H5/00
CPC分类号： G11C7/1057 , G11C7/1048 , G11C7/1051 , G11C7/1069 , G11C7/1078 , G11C7/1084 , G11C29/02 , G11C29/022 , G11C29/028 , G11C2029/0401 , G11C2029/5004 , G11C2207/2254 , H03K19/00384
摘要： An apparatus is described having a feedback loop. The feedback loop has an output that approaches a steady state as a data line voltage approaches a reference voltage. The apparatus also includes a driving transistor that drives the data line. The driving transistor has an output impedance that is controlled by the feedback loop output, the feedback loop output keeps the driving transistor output impedance within a high output impedance region when the feedback loop output reaches the steady state.

5. 发明授权

US06727759B2 Collective automatic gain control 有权
公开(公告)号：US06727759B2
公开(公告)日：2004-04-27
申请号：US10444175
申请日：2003-05-23
申请人： Huey M. Nguyen , Benedict C. Lau , Leung Yu , Jade M. Kizer , Roxanne T. Vu
发明人： Huey M. Nguyen , Benedict C. Lau , Leung Yu , Jade M. Kizer , Roxanne T. Vu
IPC分类号： H03G310
CPC分类号： H03G3/3036
摘要： A data receiver includes group envelope detection circuitry that produces a group envelope voltage. The group envelope voltage represents the average envelope of a plurality of amplified data signals. Associated feedback adjusts the gains applied to each data signal to minimize any difference between the group envelope voltage and a reference voltage. The reference voltage is preferably the envelope of a clock signal associated with the data signals.

6. 发明授权

US06330193B1 Method and apparatus for low capacitance, high output impedance driver 失效
标题翻译：低电容，高输出阻抗驱动器的方法和装置
公开(公告)号：US06330193B1
公开(公告)日：2001-12-11
申请号：US09539807
申请日：2000-03-31
申请人： Leung Yu , Roxanne T. Vu , Benedict C. Lau , Huy M. Nguyen , James A. Gasbarro
发明人： Leung Yu , Roxanne T. Vu , Benedict C. Lau , Huy M. Nguyen , James A. Gasbarro
IPC分类号： G11C700
CPC分类号： G11C7/1057 , G11C7/1051 , G11C7/1069 , G11C7/1078 , G11C7/1084
摘要： A method is described that compares two voltages, one of the voltages indicative of a data line voltage, a second of the voltages indicative of a reference voltage. An input signal is sent to each of a plurality of drivers where at least one of the drivers is coupled to the data line. The input signal is based upon the comparison. A bias is applied to a transistor from the input signal, the bias keeping the transistor in a high output impedance state when the two voltages are the same.
摘要翻译：描述了一种方法，其比较两个电压，指示数据线电压的电压之一，表示参考电压的第二电压。输入信号被发送到多个驱动器中的至少一个驱动器耦合到数据线的每个驱动器。输入信号基于比较。从输入信号向晶体管施加偏压，当两个电压相同时，偏置保持晶体管处于高输出阻抗状态。

7. 发明授权

US07038543B2 Collective automatic gain control 失效
公开(公告)号：US07038543B2
公开(公告)日：2006-05-02
申请号：US10817389
申请日：2004-04-02
申请人： Huey M. Nguyen , Benedict C. Lau , Leung Yu , Jade M. Kizer , Roxanne T. Vu
发明人： Huey M. Nguyen , Benedict C. Lau , Leung Yu , Jade M. Kizer , Roxanne T. Vu
IPC分类号： H03G3/10
CPC分类号： H03G3/3036
摘要： A data receiver includes group envelope detection circuitry that produces a group envelope voltage. The group envelope voltage represents the average envelope of a plurality of amplified data signals. Associated feedback adjusts the gains applied to each data signal to minimize any difference between the group envelope voltage and a reference voltage. The reference voltage is preferably the envelope of a clock signal associated with the data signals.

8. 发明授权

US06600374B2 Collective automatic gain control 失效
公开(公告)号：US06600374B2
公开(公告)日：2003-07-29
申请号：US09891577
申请日：2001-06-25
申请人： Huey M. Nguyen , Benedict C. Lau , Leung Yu , Jade M. Kizer , Roxanne T. Vu
发明人： Huey M. Nguyen , Benedict C. Lau , Leung Yu , Jade M. Kizer , Roxanne T. Vu
IPC分类号： H03G310
CPC分类号： H03G3/3036
摘要： A data receiver includes group envelope detection circuitry that produces a group envelope voltage. The group envelope voltage represents the average envelope of a plurality of amplified data signals. Associated feedback adjusts the gains applied to each data signal to minimize any difference between the group envelope voltage and a reference voltage. The reference voltage is preferably the envelope of a clock signal associated with the data signals.

9. 发明授权

US06369652B1 Differential amplifiers with current and resistance compensation elements for balanced output 失效
标题翻译：具有电流和电阻补偿元件的差分放大器，用于平衡输出
公开(公告)号：US06369652B1
公开(公告)日：2002-04-09
申请号：US09571089
申请日：2000-05-15
申请人： Huy M. Nguyen , Benedict C. Lau , Roxanne T. Vu
发明人： Huy M. Nguyen , Benedict C. Lau , Roxanne T. Vu
IPC分类号： H03F345
CPC分类号： H03F3/45766 , H03F3/45183 , H03F2203/45471 , H03F2203/45686 , H03F2203/45696 , H03F2203/45702 , H03K5/2481 , H03L7/0812
摘要： A differential amplifier has unequal resistance in its legs that compensates for an unequal current flow through the legs during a logic zero data input compared to logic one data input. The unequal resistance may be provided by adding a resistor in parallel to the leg that carries greater current during amplification, lowering the resistance in that leg and also the voltage that is output from that leg. Alternatively, a variable resistance may be provided to at least one of the legs to compensate for current inequalities between the legs. The variable resistance may be provided by a transistor that is controlled by a signal indicating process, voltage and/or temperature conditions of the amplifier and adjacent circuitry. Transistors may be employed in both legs as well as in a current source for the amplifier, providing balanced current regulation for the amplifier. Such current compensated differential amplifiers may be employed for various functions, for example as input receivers or delay elements in high frequency memory systems.
摘要翻译：与逻辑1数据输入相比，差分放大器在其逻辑零数据输入期间，其腿部具有不相等的电阻，其补偿与逻辑零数据输入中不平衡的电流。可以通过在放大期间增加一个并联的电阻器来提供不平等的电阻，该电阻器在放大期间承载更大的电流，降低该支路中的电阻以及从该支路输出的电压。或者，可以向至少一个腿提供可变电阻以补偿腿之间的当前不平等。可变电阻可以由由指示放大器和相邻电路的处理，电压和/或温度条件的信号控制的晶体管提供。晶体管可以用于两个支路以及用于放大器的电流源，为放大器提供平衡的电流调节。这种电流补偿差分放大器可用于各种功能，例如作为高频存储器系统中的输入接收器或延迟元件。

10. 发明授权

US06967514B2 Method and apparatus for digital duty cycle adjustment 失效
标题翻译：用于数字占空比调整的方法和装置
公开(公告)号：US06967514B2
公开(公告)日：2005-11-22
申请号：US10277738
申请日：2002-10-21
申请人： Jade M. Kizer , Roxanne T. Vu
发明人： Jade M. Kizer , Roxanne T. Vu
IPC分类号： H03K5/00 , H03K5/156 , H03K19/003 , H03K3/17
CPC分类号： H03K5/1565 , H03K2005/00058 , H03K2005/00208
摘要： Adjusting a clock duty cycle. An incremental error signal is generated in response to the clock signal. A cumulative error signal is generated in response to the incremental error signal. The incremental error signal is reset and the duty cycle of the clock signal is adjusted in response to the cumulative error signal.
摘要翻译：调整时钟占空比。响应于时钟信号产生增量误差信号。响应于增量误差信号产生累积误差信号。复位增量误差信号，并根据累积误差信号调整时钟信号的占空比。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式