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1. 发明申请

US20060152205A1 Active transient response circuits, system and method for digital multiphase pulse width modulated regulators 有权
公开(公告)号：US20060152205A1
公开(公告)日：2006-07-13
申请号：US11311115
申请日：2005-12-19
申请人： Benjamim Tang , Robert Carroll , Scott Southwell , Kenneth Ostrom , Richard Pierson
发明人： Benjamim Tang , Robert Carroll , Scott Southwell , Kenneth Ostrom , Richard Pierson
IPC分类号： G05F1/40 , G05F1/56
CPC分类号： H02M3/1584
摘要： Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a pre-determined amount are detected by an ATR circuit and a correction signal is applied. The correction signal is in the form of asynchronous pulses and the number of such pulses is a function of the magnitude of the voltage excursion as determined by the number of thresholds that are exceeded. Also disclosed is an adaptive voltage positioning (AVP) circuit and method for early detection of a transient event by sensing voltage changes at the load and adjusting the target voltage with pre-determined current values prior to the time that ATR event changes in the current at the load are detected. The AVP load line is pre-positioned for more precise current control. Also disclosed is an adaptive filter with adjustable frequency characteristics in response to an ATR event. Also disclosed is a pulse limiting circuit. Also disclosed is a tri-state implementation. Response to transient events is further improved with an external ATR circuit coupled to the load.

2. 发明申请

US20070257650A1 Digital Calibration with Lossless Current Sensing in a Multiphase Switched Power Converter 有权
标题翻译：数字校准与多相开关电源转换器中的无损耗电流检测
公开(公告)号：US20070257650A1
公开(公告)日：2007-11-08
申请号：US11779487
申请日：2007-07-18
申请人： Scott Southwell , Benjamim Tang , Robert Carroll , Steven Schulte
发明人： Scott Southwell , Benjamim Tang , Robert Carroll , Steven Schulte
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： Disclosed is a multi-phase power regulator that accurately senses current at a load in a lossless manner and adjusts the power supplied to the load based on the sensed current. Also disclosed is a method of calibrating a multiphase voltage regulator by applying a known calibration current at the load and determining actual current values by the difference in measured values between when the known calibration current is applied and when it is not applied. The accurate current is determined at a known temperature and accurate temperature compensation is provided by a non-linear digital technique. Each phase of the multi-phase power regulator is individually calibrated so that balanced channels provide accurate power to the load. Also disclosed is a calibration method with minimal noise generation.
摘要翻译：公开了一种多相功率调节器，其以无损耗的方式精确地感测负载处的电流，并且基于感测的电流来调节提供给负载的功率。还公开了一种通过在负载处施加已知的校准电流来校准多相电压调节器的方法，并且通过施加已知的校准电流与不施加之间的测量值之间的差来确定实际电流值。在已知温度下确定精确电流，并通过非线性数字技术提供精确的温度补偿。单相校准多相功率调节器的每相，以便平衡通道为负载提供精确的功率。还公开了一种具有最小噪声产生的校准方法。

3. 发明授权

US06975494B2 Method and apparatus for providing wideband power regulation to a microelectronic device 有权
标题翻译：用于向微电子器件提供宽带功率调节的方法和装置
公开(公告)号：US06975494B2
公开(公告)日：2005-12-13
申请号：US10147156
申请日：2002-05-15
申请人： Benjamim Tang , Kenneth Ostrom , Timothy Ng , Keith Nelson Bassett , Nicholas Robert Steffen , Clifford Duong , William Pohlman , Robert Carroll
发明人： Benjamim Tang , Kenneth Ostrom , Timothy Ng , Keith Nelson Bassett , Nicholas Robert Steffen , Clifford Duong , William Pohlman , Robert Carroll
IPC分类号： G06F1/26 , G06F1/30 , H02J1/10 , H02M1/14 , H02M3/158 , H05K1/18 , H02H3/00 , G05F1/44
CPC分类号： H02J1/102 , G06F1/26 , G06F1/305 , H02M1/143 , H02M3/1584 , H02M2001/0012 , H05K1/181 , Y10T307/50
摘要： A method, apparatus, and system for providing operating power and transient suppression power to a microelectronic device are disclosed. The system includes a primary regulator to supply nominal operating power and to respond to relatively slow transient events and a transient suppression regulator to respond to fast transient power events. The system also includes a sense circuit to detect when a transient event occurs and to send a signal to the transient suppression regulator to supply or sink current to the load in response to a sensed transient power event.
摘要翻译：公开了一种用于向微电子器件提供工作功率和瞬态抑制功率的方法，装置和系统。该系统包括提供标称工作功率并响应相对较慢的瞬态事件的主要调节器以及瞬态抑制调节器来响应快速瞬态功率事件。该系统还包括检测电路，用于检测何时发生瞬变事件，并且响应于所感测的瞬态功率事件，向瞬态抑制调节器发送信号以向电流提供或吸收电流。

4. 发明申请

US20060001408A1 Digital calibration with lossless current sensing in a multiphase switched power converter 有权
标题翻译：在多相开关电源转换器中进行无损耗电流检测的数字校准
公开(公告)号：US20060001408A1
公开(公告)日：2006-01-05
申请号：US10884840
申请日：2004-07-02
申请人： Scott Southwell , Benjamim Tang , Robert Carroll , Steven Schulte
发明人： Scott Southwell , Benjamim Tang , Robert Carroll , Steven Schulte
IPC分类号： G05F1/40
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： Disclosed is a multi-phase power regulator that accurately senses current at a load in a lossless manner and adjusts the power supplied to the load based on the sensed current. Also disclosed is a method of calibrating a multiphase voltage regulator by applying a known calibration current at the load and determining actual current values by the difference in measured values between when the known calibration current is applied and when it is not applied. The accurate current is determined at a known temperature and accurate temperature compensation is provided by a non-linear digital technique. Each phase of the multi-phase power regulator is individually calibrated so that balanced channels provide accurate power to the load. Also disclosed is a calibration method with minimal noise generation.
摘要翻译：公开了一种多相功率调节器，其以无损耗的方式精确地感测负载处的电流，并且基于感测的电流来调节提供给负载的功率。还公开了一种通过在负载处施加已知的校准电流并且通过施加已知校准电流之间的测量值和当不施加已知校准电流时的测量值的差来确定实际电流值来校准多相电压调节器的方法。在已知温度下确定精确电流，并通过非线性数字技术提供精确的温度补偿。单相校准多相功率调节器的每相，以便平衡通道为负载提供精确的功率。还公开了一种具有最小噪声产生的校准方法。

5. 发明申请

US20070013350A1 Multiphase power regulator with load adaptive phase control 有权
标题翻译：具有负载自适应相位控制功能的多相电源调节器
公开(公告)号：US20070013350A1
公开(公告)日：2007-01-18
申请号：US11480715
申请日：2006-07-03
申请人： Benjamim Tang , Robert Carroll , Nicholas Steffen , Richard Pierson
发明人： Benjamim Tang , Robert Carroll , Nicholas Steffen , Richard Pierson
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M2001/0009 , H02M2001/0012
摘要： Disclosed is a power regulator for providing precisely regulated power to a microelectronic device such as a microprocessor. Improved power regulation is accomplished by optimizing the power efficiency of the power regulator. In particular, in a multiphase system, the number of active phases is increased or decreased to achieve optimum power efficiency. The multiphase voltage regulator adapts the operating mode to maximize efficiency as the load current demand of the load device changes by adjusting the number of active phases to maximize efficiency. The total value of current provided by the regulator and the total number of active phases is determined, the total number of active phases is compared with the number of active phases required to provide the total value of current at maximum efficiency; and the number of active phases is adjusted to provide the total value of current at maximum efficiency. A current sense circuit senses the current at each phase, a summing circuit coupled to the output of the current sense circuit provides the total current value of all the measured phases, a circuit coupled to the output of the summing circuit provides the time averaged total current value to a threshold detecting circuit that determines the number of phases at which the voltage regulator should be operating for maximum efficiency, and a circuit for comparing the number of phases that are operating to the number of phases at which the voltage regulator should be operating adjusts the number of active phases to the number of phases at which the voltage regulator should be operating for maximum efficiency.
摘要翻译：公开了一种功率调节器，用于向诸如微处理器的微电子器件提供精确调节的功率。通过优化功率调节器的功率效率来实现改进的功率调节。特别地，在多相系统中，活性相的数量增加或减少以达到最佳功率效率。当负载设备的负载电流需求通过调节活动相数量来最大化效率而改变时，多相电压调节器可以适应操作模式以最大化效率。确定调节器提供的电流总值和有效相的总数，将有效相的总数与最大效率提供电流总值所需的有效相数进行比较; 并且调整活动相的数量以提供最大效率的电流总值。电流感测电路感测每相的电流，耦合到电流检测电路的输出的求和电路提供所有测量相位的总电流值，耦合到求和电路的输出的电路提供时间平均总电流值到阈值检测电路，其确定电压调节器应该在最大效率下操作的相位数，以及用于将正在操作的相位数与用于调节电压的相位数进行比较的电路进行调整电压调节器应运行的相数达到最大效率的有效相数。

6. 发明授权

US06788035B2 Serial bus control method and apparatus for a microelectronic power regulation system 有权
标题翻译：用于微电子功率调节系统的串行总线控制方法和装置
公开(公告)号：US06788035B2
公开(公告)日：2004-09-07
申请号：US10167911
申请日：2002-06-12
申请人： Keith Bassett , Tim Ng , Nicholas Steffen , Kenneth Ostrom , Benjamin Tang , Robert Carroll
发明人： Keith Bassett , Tim Ng , Nicholas Steffen , Kenneth Ostrom , Benjamin Tang , Robert Carroll
IPC分类号： G05F1618
CPC分类号： H02J1/102 , H05K1/181
摘要： A serial bus control method, apparatus, and system for transmitting signals between a master controller and a slave controller associated with a power regulator are disclosed. The serial bus control scheme allows for information to be written to or read from individual regulators or be written to read from all regulators that are coupled to the master controller.
摘要翻译：公开了一种用于在主控制器和与功率调节器相关的从控制器之间传送信号的串行总线控制方法，装置和系统。串行总线控制方案允许将信息写入或读取各个稳压器，或者写入从与主控制器耦合的所有稳压器读取。

7. 发明申请

US20060055388A1 Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators 有权
公开(公告)号：US20060055388A1
公开(公告)日：2006-03-16
申请号：US10938031
申请日：2004-09-10
申请人： Benjamin Tang , Robert Carroll , Scott Southwell
发明人： Benjamin Tang , Robert Carroll , Scott Southwell
IPC分类号： G05F1/40
CPC分类号： H02M3/1584
摘要： Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a pre-determined amount are detected by an ATR circuit and a correction signal is applied. The correction signal is in the form of asynchronous pulses and the number of such pulses is a function of the magnitude of the voltage excursion as determined by the number of thresholds that are exceeded. Also disclosed is an adaptive voltage positioning (AVP) circuit and method for early detection of a transient event by sensing voltage changes at the load and adjusting the target voltage with pre-determined current values prior to the time that ATR event changes in the current at the load are detected.

8. 发明申请

US20110038749A1 RAIL STEEL WITH AN EXCELLENT COMBINATION OF WEAR PROPERTIES AND ROLLING CONTACT FATIGUE RESISTANCE 有权
标题翻译：具有优异的磨损性能和滚动接触疲劳电阻组合的钢铁
公开(公告)号：US20110038749A1
公开(公告)日：2011-02-17
申请号：US12867631
申请日：2009-02-23
申请人： Robert Carroll , Howard Martin Smith , Shreekant Jaiswal
发明人： Robert Carroll , Howard Martin Smith , Shreekant Jaiswal
IPC分类号： C22C38/24
CPC分类号： C22C38/04 , C21D9/04 , C22C38/02 , C22C38/12
摘要： A high-strength pearlitic steel rail with an excellent combination of wear properties and rolling contact fatigue resistance wherein the steel has 0.88% to 0.95% carbon, 0.75% to 0.92% silicon, 0.80% to 0.95% manganese, 0.05% to 0.14% vanadium, up to 0.008% nitrogen, up to 0.030% phosphorus, 0.008 to 0.030% sulphur, at most 2.5 ppm hydrogen, at most 0.10% chromium, at most 0.010% aluminium, at most 20 ppm oxygen, the remainder being iron and unavoidable impurities.
摘要翻译：一种高强度珠光体钢轨，其耐磨性和耐滚动疲劳性优异的组合，其中钢具有0.88％至0.95％的碳，0.75％至0.92％的硅，0.80％至0.95％的锰，0.05％至0.14％的钒，高达0.008％的氮，至多0.030％的磷，0.008至0.030％的硫，至多2.5ppm的氢，至多0.10％的铬，至多0.010％的铝，至多20ppm的氧，剩余的是铁和不可避免的杂质。

9. 发明申请

US20100033551A1 Content-Aware Wide-Angle Images 有权
标题翻译：内容感知的广角图像
公开(公告)号：US20100033551A1
公开(公告)日：2010-02-11
申请号：US12270142
申请日：2008-11-13
申请人： Aseem Agarwala , Robert Carroll
发明人： Aseem Agarwala , Robert Carroll
IPC分类号： H04N7/00
CPC分类号： H04N5/23238 , G06T3/0018 , G06T5/006
摘要： This specification describes technologies relating to digital images. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a source wide-angle image; identifying one or more locally salient features of the source wide-angle image; calculating a mapping from the source wide-angle image to a two-dimensional mapped wide-angle image according to constraints using the identified one or more spatially variable salient features; and rendering the mapped wide-angle image using the calculated mapping such that the mapped wide-angle image reduces distortion of the locally salient features relative to the distortion of the source wide angle image.
摘要翻译：本说明书描述了与数字图像相关的技术。通常，本说明书中描述的主题的一个方面可以体现在包括接收源广角图像的动作的方法中; 识别源广角图像的一个或多个局部显着特征; 根据使用所识别的一个或多个空间可变显着特征的约束，计算从所述源广角图像到二维映射广角图像的映射; 以及使用所计算的映射来渲染所述映射的广角图像，使得所映射的广角图像相对于所述源广角图像的失真减小所述局部显着特征的失真。

10. 发明授权

US07499530B2 System and method for on-demand recording 有权
公开(公告)号：US07499530B2
公开(公告)日：2009-03-03
申请号：US10146168
申请日：2002-05-15
申请人： Robert Carroll , Darrell Roberts , Theodore Edwards
发明人： Robert Carroll , Darrell Roberts , Theodore Edwards
IPC分类号： H04M1/64
CPC分类号： H04N21/231 , H04M3/42221 , H04N7/17318 , H04N21/2747 , H04N21/4334 , H04N21/47214 , H04N21/4788 , H04N21/6587
摘要： Disclosed is a system and method for on-demand recording of telephone, computer, or video signals. Once a connection is established, the communication signals are sent through an intermediary device, which duplicates the signals. The signals are then stored in memory until a triggering event occurs during the connection. If the triggering event occurs, then the signals in memory are stored for playback. If the triggering event does not occur prior to the termination of the connection, the signals in memory are erased.

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