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    • 1. 发明申请
    • DUAL BOOT SYSTEM WITH MEMORY AREA SWAPPING MECHANISM
    • 具有存储区域切换机制的双引导系统
    • WO2014159849A1
    • 2014-10-02
    • PCT/US2014/025329
    • 2014-03-13
    • MICROCHIP TECHNOLOGY INCORPORATED
    • CATHERWOOD, Michael, I.IVEY, BrantWOJEWODA, IgorMICKEY, DavidKANELLOPOULOS, Joseph
    • G06F9/445G06F9/44
    • G06F9/4401G06F8/656G06F9/441
    • A central processing unit with dual boot capabilities is disclosed comprising an instruction memory further comprising a first and second memory area which are configured to be individually programmable, wherein first and second memory area can be assigned to an active memory from which instructions are executed and an inactive memory, respectively. The instruction set for the central processing unit comprises a dedicated instruction that allows to perform a swap from the an active memory area to an inactive memory area, wherein the swap is performed by executing the dedicated instruction in the active memory followed by a program flow change instruction in the active memory, whereupon the inactive memory becomes the new active memory and the active memory becomes the new inactive memory and execution of instructions continues in the new active memory.
    • 公开了一种具有双引导功能的中央处理单元,包括指令存储器,进一步包括被配置为可单独编程的第一和第二存储器区域,其中第一和第二存储器区域可被分配给执行指令的有效存储器, 不活动内存。 用于中央处理单元的指令集包括允许执行从活动存储器区域到非活动存储器区域的交换的专用指令,其中通过在活动存储器中执行专用指令,然后执行程序流程改变来执行交换 指令在活动存储器中,因此非活动存储器变为新的活动存储器,并且活动存储器变为新的非活动存储器,并且在新的活动存储器中继续执行指令。
    • 2. 发明申请
    • CONFIGURABLE TIME DELAYS FOR EQUALIZING PULSE WIDTH MODULATION TIMING
    • 用于均衡脉冲宽度调制时序的可配置时间延迟
    • WO2014133768A2
    • 2014-09-04
    • PCT/US2014/016189
    • 2014-02-13
    • MICROCHIP TECHNOLOGY INCORPORATED
    • KRIS, BryanDAY, JohnDUMAIS, AlexBOWLING, Stephen
    • H02M1/32
    • H03K5/133H02M1/08H02M1/32H02M1/38H02M3/3353H02M3/33576
    • A plurality of PWM generators have user configurable time delay circuits for each PWM control signal generated therefrom. The time delay circuits are adjusted so that each of the PWM control signals arrive at their associated power transistors at the same time. This may be accomplished by determining a maximum delay time of the PWM control signal that has to traverse the longest propagation time and then setting the delay for that PWM control signal to substantially zero delay. Thereafter, all other delay time settings for the other PWM control signals may be determined by subtracting the propagation time for each of the other PWM control signals from the longest propagation time. Thereby insuring that all of the PWM control signals arrive at their respective power transistor control nodes with substantially the same time relationships as when they left their respective PWM generators.
    • 多个PWM发生器具有用于由其产生的每个PWM控制信号的用户可配置的时间延迟电路。 时间延迟电路被调整,使得每个PWM控制信号同时到达它们相关联的功率晶体管。 这可以通过确定必须经过最长传播时间的PWM控制信号的最大延迟时间,然后将该PWM控制信号的延迟设定为基本上为零的延迟来实现。 此后,可以通过从最长传播时间减去每个其它PWM控制信号的传播时间来确定其它PWM控制信号的所有其他延迟时间设置。 从而确保所有的PWM控制信号到达它们各自的功率晶体管控制节点时具有与其离开它们各自的PWM发生器时基本相同的时间关系。
    • 4. 发明申请
    • METHOD AND SYSTEM TO DYNAMICALLY POSITION A SWITCH MODE POWER SUPPLY OUTPUT VOLTAGE
    • 用于动态定位开关模式电源输出电压的方法和系统
    • WO2013071104A2
    • 2013-05-16
    • PCT/US2012/064447
    • 2012-11-09
    • MICROCHIP TECHNOLOGY INCORPORATED
    • DEARBORN, ScottCLEVELAND, Terry
    • H02M3/335H05B33/0815H05B37/00Y02B20/346Y02B20/347
    • A switch mode power supply (SMPS) converter is periodically run backwards by using a synchronous switch instead of the normally used commutating diode. By running the SMPS converter backwards the SMPS output capacitor can be discharged very quickly to provide a fast turn off of (no current through) the LED's, thereby solving the color shift problem. This enables positioning the output voltage of the SMPS up or down by actively charging or discharging the bulk output capacitor. Having the capability of actively charging or discharging the bulk output capacitor allows generation of a current source comprising substantially square, e.g. , substantially full current when on and substantially no current when off, current pulses that are preferable for driving LED lighting applications.
    • 开关电源(SMPS)转换器通过使用同步开关而不是常用的整流二极管来周期性地反向运行。 通过反向运行SMPS转换器,SMPS输出电容器可以非常快速地放电,从而快速关断(无电流通过)LED,从而解决颜色偏移问题。 这使得通过对主体输出电容器进行主动充电或放电来使SMPS的输出电压上升或下降。 具有对主体输出电容器进行主动充电或放电的能力允许产生包括基本上正方形的电流源,例如基本上全电流,当基本上没有电流时,关断时的电流脉冲,优选用于驱动 LED照明应用。
    • 5. 发明申请
    • DIFFERENTIAL CURRENT MEASUREMENTS TO DETERMINE ION CURRENT IN THE PRESENCE OF LEAKAGE CURRENT
    • 差动电流测量在漏电流存在下确定离子电流
    • WO2013052622A2
    • 2013-04-11
    • PCT/US2012/058688
    • 2012-10-04
    • MICROCHIP TECHNOLOGY INCORPORATED
    • JULICHER, JosephCURTIS, KeithKATZ, Paul, N.
    • G01N27/66
    • G08B17/11G01N27/66G08B17/113
    • An ion chamber provides a current representative of its characteristics as affected by external conditions, e.g., clean air or smoke. A direct current (DC) voltage is applied to the ion chamber at a first polarity and the resulting current through the ion chamber and parasitic leakage current is measured at the first polarity, then the DC voltage is applied to the ion chamber at a second polarity opposite the first polarity, and the resulting current through the ion chamber and parasitic leakage current is measured at the second polarity. Since substantially no current flows through the ion chamber at the second polarity, the common mode parasitic leakage current contribution may be removed from the total current measurement by subtracting the current measured at the second polarity from the current measured at the first polarity, resulting in just the current through the ion chamber.
    • 离子室提供代表其特性受外部条件影响的电流,例如清洁空气或烟雾。 以第一极性向离子室施加直流(DC)电压,并且在第一极性下测量通过离子室的最终电流并测量寄生泄漏电流,然后以第二极性将DC电压施加到离子室 与第一极性相反,并且以第二极性测量通过离子室的所得电流和寄生泄漏电流。 由于基本上没有电流以第二极性流过离子室,因此可以通过从在第一极性测量的电流中减去在第二极性处测量的电流来从总电流测量结果中去除共模寄生泄漏电流贡献, 通过离子室的电流。
    • 10. 发明申请
    • A SMOKE DETECTOR WITH ENHANCED AUDIO AND COMMUNICATIONS CAPABILITIES
    • 具有增强音频和通信功能的烟雾探测器
    • WO2015042002A1
    • 2015-03-26
    • PCT/US2014/055748
    • 2014-09-16
    • MICROCHIP TECHNOLOGY INCORPORATED
    • ECK, Arthur B.
    • G08B3/10G08B17/10
    • G08B17/10G08B3/10
    • A smoke detector has enhanced audio and communications capabilities that allow audio content to be provided at each smoke detector location. This audio content may be music, intercom, doorbell actuation and radio programs. The smoke detector may also include a microphone for monitoring and two way communications between two or more smoke detectors, a intercom panel at a doorbell location, controlling lights in an area of the smoke detector with voice commands, and further providing for speakerphone answering and communications capabilities. Audio content and control may be provided to the smoke detector with a software program application running on a personal computer, tablet computer and a smart cell phone. A smoke detector may further be controlled with a Bluetooth or infrared handheld controller located in a area proximate to the smoke detector.
    • 烟雾探测器具有增强的音频和通信功能,允许在每个烟雾探测器位置提供音频内容。 该音频内容可以是音乐,对讲,门铃启动和无线电节目。 烟雾探测器还可以包括用于监测的麦克风和两个或多个烟雾探测器之间的双向通信,门铃位置处的对讲机面板,利用语音命令控制烟雾探测器的区域中的灯,并进一步提供免提电话应答和通信 能力。 音频内容和控制可以通过在个人计算机,平板计算机和智能蜂窝电话上运行的软件程序应用程序提供给烟雾探测器。 烟雾探测器可以进一步由位于烟雾探测器附近区域的蓝牙或红外手持控制器进行控制。