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21. 发明授权

US07536533B2 MCU based motor controller with pre-load register and DMA controller 有权
标题翻译：基于MCU的电机控制器，带有预加载寄存器和DMA控制器
公开(公告)号：US07536533B2
公开(公告)日：2009-05-19
申请号：US11240250
申请日：2005-09-30
申请人： Kafai Leung , Des Peter Howlett , Gabriel Vogel
发明人： Kafai Leung , Des Peter Howlett , Gabriel Vogel
IPC分类号： G06F15/76
CPC分类号： H02P8/16
摘要： A method is disclosed for generating a sequential pattern of motor control instructions under control of a microcontroller for the purpose of controlling a motor. A pattern of motor control instructions is stored in a memory. A timing circuit is operable to generate a periodic output sync signal. The microcontroller is operable to initiate a sequential Read operation of the memory so as to cause sequential reading and output of motor control instructions from the memory in a predetermined order. Each of the read motor control instructions is then stored in a pre-load buffer after output from the memory. The contents of the pre-load buffer is then transferred to an output buffer in synchronization with the output sync signal, wherein the output of motor control instructions from the memory is not required to be periodic.
摘要翻译：公开了一种用于在微控制器的控制下产生用于控制电动机的电机控制指令的顺序模式的方法。电机控制指令的模式存储在存储器中。定时电路可操作以产生周期性输出同步信号。微控制器可操作地启动存储器的顺序读取操作，以便以预定顺序从存储器顺序读取和输出电机控制指令。然后，每个读取的电动机控制指令在从存储器输出之后存储在预加载缓冲器中。然后将预加载缓冲器的内容与输出同步信号同步地传送到输出缓冲器，其中来自存储器的马达控制指令的输出不需要是周期性的。

22. 发明授权

US07502240B2 Distributed power supply system with separate SYNC control for controlling remote digital DC/DC converters 有权
标题翻译：分布式电源系统，具有单独的SYNC控制，用于控制远程数字DC / DC转换器
公开(公告)号：US07502240B2
公开(公告)日：2009-03-10
申请号：US11396145
申请日：2006-03-31
申请人： Kafai Leung , Ka Y. Leung , Donald E. Alfano
发明人： Kafai Leung , Ka Y. Leung , Donald E. Alfano
IPC分类号： H02J1/10 , H02J1/00
CPC分类号： H02M3/33515 , H02M3/33576 , H03K3/356121 , H03K3/35613 , H03K7/08 , H03M1/363 , Y10T307/477
摘要： A distributed power system for delivering DC power to a plurality of loads. A plurality of switching DC/DC converter modules are provided, each disposed proximate one of the loads, and each having associated therewith a switching pulse generator for generating switching pulses. A distributed power line distributes input power to each of the modules and a data communication line distributes command data between the modules, each of the modules uniquely addressable over the data communication line. A timing communication line is also provided for distributing timing information to each of the switching pulse generators. A master controller generates commands and communicates them to the data modules over the data communication line, the master controller operable to generate timing information over the timing communication line to each of the modules for controlling the associated switching pulse generator.
摘要翻译：一种用于将DC电力传送到多个负载的分布式电力系统。提供了多个开关DC / DC转换器模块，每个开关DC / DC转换器模块设置在靠近其中一个负载的位置，并且每个具有相关联的开关脉冲发生器用于产生开关脉冲。分布式电力线将输入电力分配给每个模块，并且数据通信线路在模块之间分配命令数据，每个模块可以通过数据通信线路唯一地寻址。还提供定时通信线路，用于将定时信息分配给每个开关脉冲发生器。主控制器产生命令并通过数据通信线路将其传送到数据模块，主控制器可操作以通过定时通信线路产生定时信息到每个模块以控制相关联的开关脉冲发生器。

23. 发明授权

US07426645B2 Digital power supply controller with integrated microcontroller 有权
标题翻译：带集成微控制器的数字电源控制器
公开(公告)号：US07426645B2
公开(公告)日：2008-09-16
申请号：US11172738
申请日：2005-06-30
申请人： Ka Y. Leung , Kafai Leung , Jinwen Xaio , Chia-Ling Wei , Alvin C. Storvik, II , Biranchinath Sahu , Donald Alfano
发明人： Ka Y. Leung , Kafai Leung , Jinwen Xaio , Chia-Ling Wei , Alvin C. Storvik, II , Biranchinath Sahu , Donald Alfano
IPC分类号： G06F1/00 , G06F1/26
CPC分类号： H02M3/33515 , H02M3/157 , H02M2001/0012 , H02M2001/007
摘要： A monolithic digital power supply controller is disclosed for controlling the operation of a switched power supply. The controller is contained within an integrated circuit package enclosing an integrated circuit chip. A plurality of inputs are provided on the package for interfacing with the switched power supply for receiving sensed inputs therefrom. A plurality of outputs provide switch control signals for turning on and off switches in the switched power supply. An integrated digital controller on the chip receives the inputs and generates the outputs, and includes an integrated instruction based processing engine for providing a portion of the digital control of the digital controller. A memory associated with the processing engine stores instructions for the processing engine.
摘要翻译：公开了一种用于控制开关电源的操作的单片数字电源控制器。控制器包含在封装集成电路芯片的集成电路封装中。在封装上提供多个输入，用于与开关电源接口，用于从其接收感测的输入。多个输出提供用于接通和断开开关电源中的开关的开关控制信号。芯片上的集成数字控制器接收输入并产生输出，并且包括用于提供数字控制器的数字控制的一部分的基于集成指令的处理引擎。与处理引擎相关联的存储器存储处理引擎的指令。

24. 发明授权

US07426123B2 Finite state machine digital pulse width modulator for a digitally controlled power supply 失效
标题翻译：用于数字电源的有限状态机数字脉宽调制器
公开(公告)号：US07426123B2
公开(公告)日：2008-09-16
申请号：US11172358
申请日：2005-06-30
申请人： Ka Y. Leung , Kafai Leung
发明人： Ka Y. Leung , Kafai Leung
IPC分类号： H02M1/12
CPC分类号： H03K3/356121 , H02M3/33515 , H02M3/33576 , H03K3/35613 , H03K7/08 , H03M1/363
摘要： A method is disclosed for generating pulse width modulated pulse control signals for controlling switches in a switching power supply. First, a count value is determined of a master clock within a switching cycle of the power supply from beginning to end thereof. A separate state machine providing for each edge in each of pulse control signals and each is operated to generate the associated edge as a function of the sum of a fixed reference count value from the beginning of the switching cycle and a determined count value when the sum is determined to equal the actual count value.
摘要翻译：公开了一种用于产生用于控制开关电源中的开关的脉宽调制脉冲控制信号的方法。首先，从开始到结束，确定电源的开关周期内的主时钟的计数值。提供每个脉冲控制信号中的每个边缘的单独的状态机，并且每个边缘被操作以根据从开关周期开始的固定基准计数值和确定的计数值之和产生相关边沿，当总和被确定为等于实际计数值。

25. 发明申请

US20120054379A1 LOW POWER MULTI-TOUCH SCAN CONTROL SYSTEM 审中-公开
标题翻译：低功耗多触控扫描控制系统
公开(公告)号：US20120054379A1
公开(公告)日：2012-03-01
申请号：US12870849
申请日：2010-08-30
申请人： Kafai Leung , Brent Wilson , Yonghong Tao , Shan Wang , Shantonu Bhadury , Suby Pellissery , Raghavendra Pai Kateel , David Welland , David Andreas , Gabriel Vogel
发明人： Kafai Leung , Brent Wilson , Yonghong Tao , Shan Wang , Shantonu Bhadury , Suby Pellissery , Raghavendra Pai Kateel , David Welland , David Andreas , Gabriel Vogel
IPC分类号： G06F13/28
CPC分类号： G06F13/28 , G06F1/3206 , G06F1/3262 , G06F1/3275 , G06F3/0416 , G06F3/044 , G06F2203/04104 , Y02D10/13 , Y02D10/14
摘要： An integrated control circuit is disclosed including a central processing unit operating in a normal full system power mode and in a reduced system low power mode, and a memory. A plurality of peripheral units are provided, at least one of which includes an input/output for interfacing with at least an external system for receiving information therefrom and a process block. The process block processes the received information from the external system and during the processing of the received information, data is stored in the at least one peripheral unit, and data is transferred at least to or at least from the memory. The input/output and process blocks are fully operable in the full system power mode and the reduced system power mode. A direct memory access (DMA) transfers data directly between the at least one peripheral and the memory when such data transfer is required by the peripheral. The DMA operates in a full power DMA mode when data transfer is required and a low power DMA mode when data transfer is not required. The central processing unit is operable, in the normal full system power mode, to interface with the memory and with the at least one peripheral unit to access data stored by the at least one peripheral unit.
摘要翻译：公开了一种集成控制电路，其包括以正常全系统功率模式和降低的系统低功率模式操作的中央处理单元和存储器。提供多个外围单元，其中至少一个包括用于与至少外部系统进行接口以从其接收信息的输入/输出和处理块。处理块处理来自外部系统的接收到的信息，并且在接收到的信息的处理期间，将数据存储在至少一个外围单元中，并且数据至少传送到或至少从存储器传送。输入/输出和过程模块可以在全系统电源模式和降低的系统电源模式下完全工作。直接存储器访问（DMA）在外围设备需要这种数据传输时，直接在至少一个外围设备和存储器之间传输数据。当需要数据传输时，DMA工作在全功率DMA模式，而在不需要数据传输时，DMA工作在低功耗DMA模式。中央处理单元在正常全系统功率模式下可操作地与存储器和至少一个外围单元接口以访问由至少一个外围单元存储的数据。

26. 发明申请

US20100283760A1 METHOD AND APPARATUS FOR SCANNING A TOUCHSCREEN WITH MULTI-TOUCH DETECTION USING MASTER/SLAVE DEVICES 有权
标题翻译：使用主/从设备扫描具有多触摸检测的触摸屏的方法和装置
公开(公告)号：US20100283760A1
公开(公告)日：2010-11-11
申请号：US12775447
申请日：2010-05-06
申请人： Kafai Leung , Bradley Martin , Steve Gerber
发明人： Kafai Leung , Bradley Martin , Steve Gerber
IPC分类号： G06F3/045
CPC分类号： G06F3/044
摘要： A touch panel scan system is disclosed for detecting a change in mutual capacitance on the surface of a touch panel. A first touch detect device is provided having a transmitter for transmitting a transmit signal to a select one of a plurality of first lines on a first edge of a touch panel to facilitate a single line scan operation. A second touch detect device is interfaced with a select one or ones of second lines on a second edge of the touch panel having a receiver for receiving therefrom and processing thereof transmit signals coupled thereto from the select one or ones of the first lines to detect changes in a mutual capacitance associated with the select one or ones of the second lines and the first line. At least one of the first or second touch detect devices functions as a master and the other functions as a slave, with the master coupled to the slave and generating a SYNC signal to initiate a single scan operation of a select one of the first lines.
摘要翻译：公开了用于检测触摸面板的表面上的互电容变化的触摸面板扫描系统。提供一种第一触摸检测装置，其具有用于将发射信号发送到触摸面板的第一边缘上的多条第一线中的选择一条线的发射器，以便于单线扫描操作。第二触摸检测装置与触摸面板的第二边缘上的选择一个或多个第二行接口，其具有用于从其接收的接收器，并且处理其从所选择的一个或多个第一行耦合到其上的信号，以检测变化在与第二线和第一线中选择的一个或多个相关联的互电容中。第一或第二触摸检测装置中的至少一个用作主机，另一个用作从机，其中主机耦合到从机，并产生SYNC信号以启动第一行中选择的一个的单次扫描操作。

27. 发明授权

US07701685B2 Digital pulse width modulator with built-in protection functions for over current, over voltage and temperature 有权
标题翻译：数字脉宽调制器，内置保护功能，适用于过电流，过电压和温度
公开(公告)号：US07701685B2
公开(公告)日：2010-04-20
申请号：US11096043
申请日：2005-03-31
申请人： Kafai Leung , Ka Y. Leung , Donald E. Alfano
发明人： Kafai Leung , Ka Y. Leung , Donald E. Alfano
IPC分类号： H02H3/08
CPC分类号： H03K7/08 , H02M1/32 , H02M3/157
摘要： An apparatus for providing over current protection for a digital pulse width modulator is disclosed. The apparatus includes first logic circuitry for generating a primary interrupt indicating that a detected output current is greater than a threshold current. Second logic circuitry generates a secondary input responsive to the occurrence to the primary interrupt for a predetermined number of times.
摘要翻译：公开了一种用于为数字脉宽调制器提供过流保护的装置。该装置包括用于产生指示检测到的输出电流大于阈值电流的主中断的第一逻辑电路。第二逻辑电路响应于主中断的发生预定次数产生次级输入。

28. 发明授权

US07212061B2 DPWM with leading edge blanker circuit 有权
标题翻译： DPWM具有前沿消隐电路
公开(公告)号：US07212061B2
公开(公告)日：2007-05-01
申请号：US11096187
申请日：2005-03-31
申请人： Kafai Leung , Ka Y. Leung , Jinwen Xiao
发明人： Kafai Leung , Ka Y. Leung , Jinwen Xiao
IPC分类号： H03K17/16 , G05F1/10
CPC分类号： H03M1/0863 , G06F1/025 , H03M1/822
摘要： An apparatus for providing over current protection for a digital pulse width modulator is disclosed. The apparatus includes first logic circuitry for generating a primary interrupt indicating that a detected output current is greater than a threshold current. Second logic circuitry blanks out current spikes in the output current occurring on a leading pulse edge of at least one of a plurality of outputs of the digital pulse-width modulator.
摘要翻译：公开了一种用于为数字脉宽调制器提供过流保护的装置。该装置包括用于产生指示检测到的输出电流大于阈值电流的主中断的第一逻辑电路。第二逻辑电路消除在数字脉冲宽度调制器的多个输出中的至少一个的前导脉冲沿出现的输出电流中的电流尖峰。

29. 发明授权

US5777912A Linear phase finite impulse response filter with pre-addition 失效
标题翻译：具有预加法的线性相位有限脉冲响应滤波器
公开(公告)号：US5777912A
公开(公告)日：1998-07-07
申请号：US623134
申请日：1996-03-28
申请人： Ka Yin Leung , Eric J. Swanson , Kafai Leung
发明人： Ka Yin Leung , Eric J. Swanson , Kafai Leung
IPC分类号： H03H17/06 , G06F17/10
CPC分类号： H03H17/06
摘要： A linear phase FIR filter includes a multiplication/accumulator engine which is operable to receive the multi-level data stream and multiply it by predetermined filter coefficients. The coefficients are symmetrical to allow a pre-addition operation wherein the data is first stored in a buffer and then the data for symmetrical coefficients added before multiplication by the coefficient. This results in a reduction of multiplications by a factor of two, thus allowing the multiplication/accumulator engine to operate at one-half the clock rate of the oversampled multi-level data bit stream. The pre-addition operation results in values of greater than "1" and less than "-1" which are then converted in the multiplication/accumulator engine to restrict the values that are input to the multiplication/accumulator engine to values of "+1", "0" and "-1", to allow the multiplication/accumulator engine to only perform a "pass through" of the coefficient value, an "inversion" of the coefficient value or replace the coefficient value with a "null" value. This is facilitated by processing the tri-level data through two paths, one for the "-1" and one for the "-1" term and providing a common mode offset in each of the paths. Additionally, the "-1" term has a correction factor associated therewith that can be added in the "-1" path prior to summing the two terms to provide a digital output at the sampling frequency.
摘要翻译：线性相位FIR滤波器包括乘法/累加器引擎，其可操作以接收多电平数据流并将其乘以预定的滤波器系数。系数是对称的，以允许预先加法操作，其中首先将数据存储在缓冲器中，然后将数据乘以系数之前加上的对称系数。这导致乘法减少2倍，从而允许乘法/累加器引擎以过采样多电平数据比特流的时钟速率的一半工作。预加法运算导致大于“1”且小于“-1”的值，然后在乘法/累加器引擎中转换，将输入乘法/累加器引擎的值限制为“+1” “，”0“和”-1“，以允许乘法/累加器引擎仅执行系数值的”通过“，系数值的”反转“或者以”零“值代替系数值。这通过两个路径处理三电平数据来实现，一个用于“-1”，一个用于“-1”项，并且在每个路径中提供共模偏移。此外，“-1”项具有与之相关联的校正因子，其可以在对两个项求和之前以“-1”路径相加，以提供采样频率处的数字输出。

30. 发明申请

US20070198101A1 MCU based motor controller with pre-load register and DMA controller 有权
标题翻译：基于MCU的电机控制器，带有预加载寄存器和DMA控制器
公开(公告)号：US20070198101A1
公开(公告)日：2007-08-23
申请号：US11240250
申请日：2005-09-30
申请人： Kafai Leung , Des Howlett , Gabriel Vogel
发明人： Kafai Leung , Des Howlett , Gabriel Vogel
IPC分类号： G05B13/02
CPC分类号： H02P8/16
摘要： A method is disclosed for generating a sequential pattern of motor control instructions under control of a microcontroller for the purpose of controlling a motor. A pattern of motor control instructions is stored in a memory. A timing circuit is operable to generate a periodic output sync signal. The microcontroller is operable to initiate a sequential Read operation of the memory so as to cause sequential reading and output of motor control instructions from the memory in a predetermined order. Each of the read motor control instructions is then stored in a pre-load buffer after output from the memory. The contents of the pre-load buffer is then transferred to an output buffer in synchronization with the output sync signal, wherein the output of motor control instructions from the memory is not required to be periodic.
摘要翻译：公开了一种用于在微控制器的控制下产生用于控制电动机的电机控制指令的顺序模式的方法。电机控制指令的模式存储在存储器中。定时电路可操作以产生周期性输出同步信号。微控制器可操作地启动存储器的顺序读取操作，以便以预定顺序从存储器顺序读取和输出电机控制指令。然后，每个读取的电动机控制指令在从存储器输出之后存储在预加载缓冲器中。然后将预加载缓冲器的内容与输出同步信号同步地传送到输出缓冲器，其中来自存储器的马达控制指令的输出不需要是周期性的。

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