公开(公告)号：US20120242242A1

公开(公告)日：2012-09-27

申请号：US13430601

申请日：2012-03-26

Applicant: Alfredo R. Linz ,  Michael A. Kost ,  Sahil Singh

Inventor： Alfredo R. Linz ,  Michael A. Kost ,  Sahil Singh

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0866 ,  H05B33/0872

Abstract: A lighting system includes one or more methods and systems to control the color spectrum of a lamp in response to both temperature and dim levels. In at least one embodiment, the lighting system includes a controller to control a correlated color temperature (CCT) and intensity of the lamp by independently adjusting currents to electronic light sources based on a dim level of the lighting system and temperature of the lighting system. The controller controls a first current to a first set of LEDs and a second current to a second set of LEDs. The control of the first current by the controller is jointly dependent on a dim level and temperature in the lighting system. In at least one embodiment, the control of the second current is dependent on the dim level or the dim level and temperature.

Abstract translation: 照明系统包括响应于温度和昏暗水平来控制灯的色谱的一种或多种方法和系统。 在至少一个实施例中，照明系统包括控制器，其通过基于照明系统的昏暗水平和照明系统的温度独立地调节电流至电子光源的电流来控制相关色温（CCT）和灯的强度。 控制器控制到第一组LED的第一电流和到第二组LED的第二电流。 控制器对第一电流的控制与照明系统中的昏暗水平和温度有关。 在至少一个实施例中，第二电流的控制取决于昏暗水平或暗淡水平和温度。

公开(公告)号：US08102127B2

公开(公告)日：2012-01-24

申请号：US11767523

申请日：2007-06-24

Applicant: John L. Melanson

Inventor： John L. Melanson

IPC: H05B35/00

CPC classification number: H05B35/00 ,  F21Y2113/00 ,  F21Y2113/20

Abstract: A lighting system and method combine at least one LED and at least one gas discharge lamp within a common housing. The lighting system includes a control system to dependently operate each LED and each gas discharge lamp during overlapping, non-identical periods of time. In at least one embodiment, the control system can provide light output by activating LEDs during gas discharge preheating operations and thus extend the useful life of each gas discharge lamp. When dimming the lighting system, the control system can reduce current to the gas discharge lamps and one or more gas discharge lamps can be phased out as dimming levels decrease. As dimming levels decrease, one or more of the LEDs can be activated or groups of LEDs can be phased in to replace the light output of the dimmed gas discharge lamps. Thus, the lighting system can reduce power consumption at low dimming levels.

Abstract translation: 照明系统和方法将至少一个LED和至少一个气体放电灯组合在公共壳体内。 照明系统包括控制系统，以在重叠，不相同的时间段内依赖地操作每个LED和每个气体放电灯。 在至少一个实施例中，控制系统可以在气体放电预热操作期间通过激活LED来提供光输出，从而延长每个气体放电灯的使用寿命。 当对照明系统进行调光时，控制系统可以减少气体放电灯的电流，并且随着调光水平的降低，一个或多个气体放电灯可以被淘汰。 随着调光水平的降低，一个或多个LED可以被激活，或者一组LED可以被定相以替代调暗气体放电灯的光输出。 因此，照明系统可以在低调光水平下降低功耗。

公开(公告)号：US08068622B2

公开(公告)日：2011-11-29

申请号：US11611069

申请日：2006-12-14

Applicant: John L. Melanson ,  John Christopher Tucker

Inventor： John L. Melanson ,  John Christopher Tucker

IPC: H03F99/00

CPC classification number: H03F1/025

Abstract: A method and apparatus for controlling a selectable voltage audio power output stage provides a mechanism for raising the selected power amplifier output voltage in time for the arrival of signal peaks to avoid clipping. Signal peaks may either be delayed by delaying an increase in volume control level or enabling signal compression for a predetermined time period, so that sufficient time is provided for the amplifier power supply to stabilize at a higher operating voltage when an increase of power supply voltage is selected. Alternatively, a signal level may be determined at an upstream source, such as a decoder or filter that provides information in sufficient advance of the arrival of the peaks, and used to control the power supply selection, so that the higher power supply voltage level is selected in advance of arrival of the signal peaks that would otherwise cause clipping at the power amplifier output.

Abstract translation: 用于控制可选择的电压音频功率输出级的方法和装置提供了用于在信号峰值到达时及时提升所选择的功率放大器输出电压以避免削波的机制。 信号峰值可以通过延迟音量控制电平的增加或在预定时间段内启用信号压缩来延迟，使得当电源电压的增加是放大器电源稳定在较高的工作电压时，提供足够的时间 选择。 或者，可以在诸如解码器或滤波器的上游源处确定信号电平，所述解码器或滤波器提供足够高的峰值到达之前的信息，并且用于控制电源选择，使得较高的电源电压电平为 在信号峰值的到达之前选择，否则将在功率放大器输出端造成限幅。

公开(公告)号：US08018171B1

公开(公告)日：2011-09-13

申请号：US12047258

申请日：2008-03-12

Applicant: John L. Melanson ,  John J. Paulos

Inventor： John L. Melanson ,  John J. Paulos

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  Y10S315/04

Abstract: A system and method modify phase delays of a periodic, phase modulated mains voltage to generate at least two independent items of information during each cycle of the periodic input signal. The independent items of information can be generated by, for example, independently modifying leading edge and trailing edge phase delays of each half cycle phase modulated mains voltage. Modifying phase delays for the leading and trailing edges of each half cycle of the phase modulated mains voltage can generate up to four independent items of data. The items of data can be converted into independent control signals to, for example, control drive currents to respective output devices such as light sources to provide multiple items of information per cycle.

Abstract translation: 系统和方法修改周期性相位调制电源电压的相位延迟，以在周期性输入信号的每个周期期间产生至少两个独立的信息项。 可以通过例如独立地修改每个半周期相位调制电源电压的前沿和后沿相位延迟来产生独立信息项。 修改相位调制电源电压每个半周期的前沿和后沿的相位延迟可以生成多达四个独立的数据项。 数据项目可以转换为独立的控制信号，例如将驱动电流控制到诸如光源的各个输出设备，以便每个周期提供多个信息项。

公开(公告)号：US20110210674A1

公开(公告)日：2011-09-01

申请号：US12675035

申请日：2008-08-23

Applicant: John L. Melanson

Inventor： John L. Melanson

IPC: H05B37/02

CPC classification number: H05B33/083 ,  H05B33/0815 ,  Y02B20/347

Abstract: A LED driver and controller system utilizes switches to parallel connect to respective sets of one or more LEDs and a current source to provide efficient control of the LEDs. In at least one embodiment, the LEDs are connected in series. An LED controller of the LED driver and controller system 200 controls conductivity of the switches. In at least one embodiment, the LED controller provides control signals to one or more LED drivers. The LED drivers receive the control signals and, in response to the control signals, control the conductivity of each switch. In at least one embodiment, the conductivity of the each switch is controlled using a duty cycle modulated control signal. In at least one embodiment, the duty cycle modulated control signal is a pulse width modulated control signal. In another embodiment, the duty cycle modulated control signal is a pulse density modulated control signal.

Abstract translation: LED驱动器和控制器系统利用开关并联连接到相应的一组一个或多个LED和电流源，以提供LED的有效控制。 在至少一个实施例中，LED串联连接。 LED驱动器和控制器系统200的LED控制器控制开关的导电性。 在至少一个实施例中，LED控制器向一个或多个LED驱动器提供控制信号。 LED驱动器接收控制信号，响应于控制信号，控制每个开关的电导率。 在至少一个实施例中，使用占空比调制控制信号来控制每个开关的电导率。 在至少一个实施例中，占空比调制控制信号是脉宽调制控制信号。 在另一个实施例中，占空比调制控制信号是脉冲密度调制控制信号。

公开(公告)号：US08008975B1

公开(公告)日：2011-08-30

申请号：US12415788

申请日：2009-03-31

Applicant: Daniel J. Allen ,  Eric J. Swanson ,  Scott A. Woodford

Inventor： Daniel J. Allen ,  Eric J. Swanson ,  Scott A. Woodford

IPC: H03F3/04

CPC classification number: H03F3/3022 ,  H03F1/0216 ,  H03F3/45475 ,  H03F2200/513

Abstract: In at least one embodiment, an electronic system includes an amplifier having an on-chip charge pump to provide a gate boost voltage to boost a gate voltage of at least one on-chip field effect transistor (FET) of an output stage of an amplifier. In at least one embodiment, the gate boost voltage boosts the gate voltage higher than the supply voltage rail to increase an overdrive voltage of the on-chip FET. In at least one embodiment, the gate boost voltage boosts the DC bias of an input signal and, thus, generation of gate boost voltage by the on-chip charge pump is signal-independent, i.e. independent of the input signal. Increasing the overdrive voltage increases the efficiency of the amplifier by decreasing the difference between the maximum swing of the output voltage and the voltage supply rails of the at least one on-chip FET relative to conventional designs.

Abstract translation: 在至少一个实施例中，电子系统包括具有片上电荷泵的放大器，以提供栅极升压电压以升高放大器的输出级的至少一个片上场效应晶体管（FET）的栅极电压 。 在至少一个实施例中，栅极升压电压将栅极电压升高高于电源电压轨，以增加片上FET的过驱动电压。 在至少一个实施例中，栅极升压电压升高输入信号的DC偏置，因此片上电荷泵的栅极升压电压的产生与信号无关，即独立于输入信号。 通过减小输出电压的最大摆动和至少一个片上FET的电压供应轨之间的差异，相对于常规设计，增加过驱动电压增加了放大器的效率。

公开(公告)号：US07915995B2

公开(公告)日：2011-03-29

申请号：US12568947

申请日：2009-09-29

Applicant: Hua Yang ,  Ammisetti Prasad ,  John L. Melanson

Inventor： Hua Yang ,  Ammisetti Prasad ,  John L. Melanson

IPC: H01C13/02 ,  H01L43/00 ,  H01L43/06 ,  H01L43/08

CPC classification number: H03F3/45475 ,  H03F1/3211 ,  H03F2203/45136 ,  H03F2203/45528

Abstract: A resistive circuit includes a first terminal and a second terminal and polycrystalline first and second resistive segments coupled between the first and second terminals. A third terminal A is coupled to the first resistive segment, and a third terminal B is coupled to the second resistive segment. The third terminal A has a first voltage with respect to the first terminal, and the third terminal B has a second voltage with respect to the second terminal. With this arrangement, the non-linearity of resistance of the first resistive segment at least partially compensates for non-linearity of resistance of the second resistive segment.

Abstract translation: 电阻电路包括耦合在第一和第二端子之间的第一端子和第二端子以及多晶的第一和第二电阻段。 第三端子A耦合到第一电阻段，并且第三端子B耦合到第二电阻段。 第三端子A相对于第一端子具有第一电压，并且第三端子B相对于第二端子具有第二电压。 利用这种布置，第一电阻段的电阻的非线性至少部分地补偿第二电阻段的电阻的非线性。

公开(公告)号：US07804972B2

公开(公告)日：2010-09-28

申请号：US11425969

申请日：2006-06-22

Applicant: John L. Melanson

Inventor： John L. Melanson

IPC: H04R5/02

CPC classification number: H04S7/301 ,  H04R3/12 ,  H04R2201/401 ,  H04R2430/20

Abstract: A method and apparatus system for calibrating a sound beam-forming system provides calibration of low cost alternatives to present array beam-forming systems. A test signal is supplied to multiple speaker drivers and is detected from a microphone signal supplied from a microphone positioned at a listening position. A signal relationship between surround channel information supplied to the multiple speaker drivers is adjusted in conformity with the detected signal so that the surround channel information is substantially attenuated along a direct path toward the listening position. The result is that the surround channel information is propagated in a directivity pattern having at least one primary lobe directed away from the listening position so that the surround channel information is diffused by reflection before reaching the listening position. The signal relationship may be controlled by multiple digital filters that maximize late vs. early response of the surround channel information.

Abstract translation: 用于校准声束形成系统的方法和装置系统提供了用于呈现阵列波束形成系统的低成本替代方案的校准。 测试信号被提供给多个扬声器驱动器，并且从位于收听位置的麦克风提供的麦克风信号中检测。 提供给多个扬声器驱动器的环绕声道信息之间的信号关系根据检测到的信号进行调节，使得环绕声道信息沿着朝向收听位置的直接路径基本衰减。 结果是，环绕声道信息以具有远离收听位置的至少一个主瓣的方向性图案传播，使得环绕声道信息在到达收听位置之前被反射扩散。 信号关系可以由多个数字滤波器来控制，这些数字滤波器使环绕声道信息的后期对早期响应最大化。

公开(公告)号：US20100164631A1

公开(公告)日：2010-07-01

申请号：US12347155

申请日：2008-12-31

Applicant: Edmund M. Schneider ,  Murari L. Kejariwal ,  Stephen T. Hodapp ,  John L. Melanson

Inventor： Edmund M. Schneider ,  Murari L. Kejariwal ,  Stephen T. Hodapp ,  John L. Melanson

IPC: H03F3/04

CPC classification number: H03F3/45955 ,  H03F3/005

Abstract: An electronic system generates at least one floating supply voltage, wherein during operation of the circuit the floating supply voltage tracks a common mode voltage of first and second differential input signals. By tracking the common mode voltage, in at least one embodiment, the floating supply voltage adjusts as the common mode voltage changes. Thus, the floating supply voltages can be based upon the peak-to-peak values of the first and second output signals without factoring in the common mode voltage. In at least one embodiment, the electronic system provides the floating supply voltages to an amplifier. The amplifier amplifies the first and second differential input signals and generates differential output signals. A differential sampling circuit samples the differential output signals to cancel the common mode voltage from the differential output signals. In at least one embodiment, an analog-to-digital converter converts the sampled differential output signals into a digital output signal.

Abstract translation: 电子系统产生至少一个浮动电源电压，其中在电路运行期间，浮动电源电压跟踪第一和第二差分输入信号的共模电压。 通过跟踪共模电压，在至少一个实施例中，浮动电源电压随着共模电压的变化而调整。 因此，浮动电源电压可以基于第一和第二输出信号的峰 - 峰值而不考虑共模电压。 在至少一个实施例中，电子系统向放大器提供浮动电源电压。 放大器放大第一和第二差分输入信号并产生差分输出信号。 差分采样电路对差分输出信号进行采样，以从差分输出信号中消除共模电压。 在至少一个实施例中，模数转换器将采样的差分输出信号转换成数字输出信号。

公开(公告)号：US07747917B2

公开(公告)日：2010-06-29

申请号：US12154589

申请日：2008-05-23

Applicant: Richard Putman ,  Michael Kost ,  Sanjay Pillay

Inventor： Richard Putman ,  Michael Kost ,  Sanjay Pillay

IPC: G01R31/28 ,  H03K3/289 ,  H03K3/356

CPC classification number: G01R31/318541 ,  G01R31/318594

Abstract: A scan including data and shift inputs, and input selection circuitry for selecting between the data and shift inputs during normal, capture, and shift modes in response to only a first control signal and a second control signal. The input selection circuitry includes a first storage element for storing a bit representing a state of the first control signal in response to a change in state of the second control signals and multiplexing circuitry. The multiplexing circuitry is operable in the normal mode to select the data input in response to a first state of the second control signal, in the capture mode to select the data input when the bit stored in the first storage element represents a first state of the first control signal, and in the shift mode to select the shift input when the bit stored in the first storage element represents a second state of the first control signal. A second storage element stores, in response to the first state of the first control signal, data presented at the selected one of the data and shift inputs.

Abstract translation: 扫描，包括数据和移位输入，以及输入选择电路，用于仅响应于第一控制信号和第二控制信号在正常，捕获和移位模式期间在数据和移位输入之间进行选择。 输入选择电路包括第一存储元件，用于响应于第二控制信号和复用电路的状态改变而存储表示第一控制信号的状态的位。 复用电路在正常模式下可操作以在捕获模式下响应于第二控制信号的第一状态选择数据输入，以在存储在第一存储元件中的位表示第一状态时选择数据输入 并且在所述移位模式中，当存储在所述第一存储元件中的位表示所述第一控制信号的第二状态时选择所述移位输入。 第二存储元件响应于第一控制信号的第一状态存储在所选数据和移位输入中呈现的数据。