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1. 发明申请

WO2009114282A1 METHOD AND CIRCUIT FOR AN OPERATING AREA LIMITER 审中-公开
标题翻译：操作区域的方法和电路
公开(公告)号：WO2009114282A1
公开(公告)日：2009-09-17
申请号：PCT/US2009/035330
申请日：2009-02-26
申请人： MSILICA INCORPORATED , SANTO, Hendrik , S, Dilip , VI, Kien , GHOMAN, Ranajit , SCHINDLER, Matthew D.
发明人： SANTO, Hendrik , S, Dilip , VI, Kien , GHOMAN, Ranajit , SCHINDLER, Matthew D.
IPC分类号： G05F1/00
CPC分类号： G05F1/561
摘要： The present invention relates to circuits and methods for limiting the operating area of a transistor in a constant current source. The circuits and methods use a detector and a driver to limit the operating area of a transistor. The detector and driver have parameters selected so that, when the voltage at the drain of the transistor satisfies a reference condition, the driver causes drain current of the transistor to decrease. The reference condition is determined relative to the maximum safe drain-to-source voltage at the design drain current of the constant current source.
摘要翻译：本发明涉及用于限制恒流源中的晶体管的工作面积的电路和方法。电路和方法使用检测器和驱动器来限制晶体管的工作面积。检测器和驱动器具有选择的参数，使得当晶体管的漏极处的电压满足参考条件时，驱动器使晶体管的漏极电流减小。参考条件是相对于恒流源设计漏极电流的最大安全漏极 - 源极电压来确定的。

2. 发明申请

WO2009114283A1 ARCHITECTURE AND TECHNIQUE FOR INTER-CHIP COMMUNICATION 审中-公开
标题翻译：机构间通信的架构和技术
公开(公告)号：WO2009114283A1
公开(公告)日：2009-09-17
申请号：PCT/US2009/035334
申请日：2009-02-26
申请人： MSILICA INCORPORATED , SANTO, Hendrik , GHOMAN, Ranajit , S, Dilip , VI, Kien
发明人： SANTO, Hendrik , GHOMAN, Ranajit , S, Dilip , VI, Kien
IPC分类号： G09G3/36
CPC分类号： H05B33/0842
摘要： The present invention involves an electrical system in which an analog signal channel passes through various integrated circuit chips (ICs). The channel can carry one or more analog signals. Each IC can modify the signal(s) passing through it and pass it on to another IC or system component. The channel can be programmable. Each IC can include a comparator or a multiplexor to receive the channel signal from another IC or system component and to modify the received signal before transmitting it to another IC or system component. The comparator or the multiplexor can be programmable and can be selectively configured to compare the incoming signal from the channel with a variety of other signals and thresholds, or to simply act as a flow through gate and allow the signal to pass without any modification. The comparison can determine the output of the comparator. The operation and programming of the comparators, the multiplexors and the channel can be centrally controlled by a system controller, can be independently controlled by the ICs, or a combination thereof.
摘要翻译：本发明涉及一种电气系统，其中模拟信号通道通过各种集成电路芯片（IC）。通道可以携带一个或多个模拟信号。每个IC可以修改通过它的信号并将其传递到另一个IC或系统组件。通道可编程。每个IC可以包括比较器或多路复用器，以从另一个IC或系统组件接收信道信号，并且在将其发送到另一IC或系统组件之前修改接收的信号。比较器或多路复用器可以是可编程的，并且可以被选择性地配置为将来自信道的输入信号与各种其他信号和阈值进行比较，或者简单地充当通过门的流，并允许信号通过而不进行任何修改。比较可以确定比较器的输出。比较器，多路复用器和通道的操作和编程可以由系统控制器集中控制，可以由IC独立控制或其组合。

3. 发明申请

WO2008147779A1 SYSTEM AND METHOD FOR AMBIENT-LIGHT ADAPTIVE INTENSITY CONTROL FOR AN ELECTRONIC DISPLAY 审中-公开
标题翻译：用于电子显示的环境光自适应强度控制的系统和方法
公开(公告)号：WO2008147779A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/064269
申请日：2008-05-20
申请人： MSILICA , SANTO, Hendrik , THANDI, Gurjit, S. , S, Dilip , VI, Kien
发明人： SANTO, Hendrik , THANDI, Gurjit, S. , S, Dilip , VI, Kien
IPC分类号： H05B37/02
CPC分类号： H05B37/0218 , G09G3/3413 , G09G2320/0242 , G09G2320/0606 , G09G2320/0626 , G09G2360/144 , Y02B20/46
摘要： The techniques of the present invention relate to automatically controlling display intensity. The present invention includes a calibration step in which the display intensity settings are correlated to the ambient light intensity conditions. The present invention also includes an automatic adjustment step in which the ambient light intensity is measured and the display intensity is automatically adjusted according to a correlation defined in the calibration step.
摘要翻译：本发明的技术涉及自动控制显示强度。本发明包括其中显示强度设置与环境光强条件相关的校准步骤。本发明还包括自动调整步骤，其中测量环境光强度，并且根据校准步骤中定义的相关度自动调节显示强度。

4. 发明申请

WO2008147780A1 METHOD AND CIRCUIT FOR AN EFFICIENT AND SCALABLE CONSTANT CURRENT SOURCE FOR AN ELECTRONIC DISPLAY 审中-公开
标题翻译：用于电子显示的有效和可定量恒定电流源的方法和电路
公开(公告)号：WO2008147780A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/064271
申请日：2008-05-20
申请人： MSILICA , THANDI, Gurjit, S. , S, Dilip , SANTO, Hendrik , VI, Kien
发明人： THANDI, Gurjit, S. , S, Dilip , SANTO, Hendrik , VI, Kien
IPC分类号： G05F3/16
CPC分类号： G05F3/205
摘要： The present invention uses two transistors instead of a sensing resistor to provide a constant current source for a load such as an array of light emitting diodes ( LEDs ). In the present invention, a bias current is applied to a branch of the circuit. The drain-to-source voltages of two transistors are matched. The voltage at the gate of both transistors is controlled based on the bias current and the drain-to-source current of the first of the two transistors. The second of the two transistors is sized such that source current of the second transistor is a multiple of the source current of the first transistor for a given gate voltage. By the techniques of this invention, the load current in a circuit is efficiently kept constant at a multiple of the input bias current.
摘要翻译：本发明使用两个晶体管而不是感测电阻来为例如发光二极管（LED）阵列的负载提供恒定电流源。在本发明中，偏置电流被施加到电路的支路。两个晶体管的漏极 - 源极电压匹配。基于两个晶体管中的第一个的偏置电流和漏极 - 源极电流来控制两个晶体管的栅极处的电压。两个晶体管中的第二个的尺寸使得第二晶体管的源电流对于给定的栅极电压是第一晶体管的源极电流的倍数。通过本发明的技术，电路中的负载电流被有效地保持恒定在输入偏置电流的倍数。

5. 发明申请

WO2008147777A1 TEMPERATURE DEPENDANT LED CURRENT CONTROLLER 审中-公开
标题翻译：温度依赖LED电流控制器
公开(公告)号：WO2008147777A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/064265
申请日：2008-05-20
申请人： MSILICA , SANTO, Hendrik , THANDI, Gurjit S. , S, Dilip , VI, Kien
发明人： SANTO, Hendrik , THANDI, Gurjit S. , S, Dilip , VI, Kien
IPC分类号： H05B37/02
CPC分类号： H05B33/0854
摘要： The present invention provides a controller for regulating current in LEDs in electronic displays. The controller uses temperature sensing diodes to detect changes in the LED ambient temperature. As the LED ambient temperature changes, the forward voltage of the temperature sensing diode decreases. A signal processor adjusts the current passing through the LEDs based on the temperature induced changes in the forward voltage of the temperature sensing diodes. The present invention can reduce costs over the present methods of regulating current in LEDs and may more easily be integrated into a single integrated circuit chip. The temperature sensing may also be implemented outside the integrated circuit chip.
摘要翻译：本发明提供一种用于调节电子显示器中的LED中的电流的控制器。控制器使用温度感应二极管来检测LED环境温度的变化。随着LED环境温度的变化，温度感应二极管的正向电压降低。信号处理器根据温度感应二极管正向电压的变化来调节通过LED的电流。本发明可以降低LED中调节电流的现有方法的成本，并且可以更容易地集成到单个集成电路芯片中。也可以在集成电路芯片之外实现温度感测。

6. 发明申请

WO2008089099A3 HYBRID ANALOG AND DIGITAL ARCHITECTURE FOR CONTROLLING BACKLIGHT LIGHT EMITTING DIODES OF AN ELECTRONIC DISPLAY 审中-公开
公开(公告)号：WO2008089099A3
公开(公告)日：2008-07-24
申请号：PCT/US2008/050917
申请日：2008-01-11
申请人： MSILICA , THANDI, Gurjit, S. , SANTO, Hendrik , S, Dilip , VI, Kien
发明人： THANDI, Gurjit, S. , SANTO, Hendrik , S, Dilip , VI, Kien
IPC分类号： G06F3/038
摘要： The present invention provides a controller for controlling strings of LEDs in a liquid crystal display. The hybrid controller uses both analog and digital circuit components. Error amplifiers are used to compare analog feedback signals received from the LED strings with reference signals. The results of those comparisons are converted to digital data and processed by a digital signal processor (DSP). The DSP calculates the drive voltages for the LED strings based on the deviation between the actual current flows (represented by feedback signals) and the desired current flows (represented by reference signals) through the LED strings. Analog drivers provide the drive voltages to the LED strings.

7. 发明申请

WO2008089095A2 SYSTEM AND METHOD FOR CONTROLLING A MULTI-STRING LIGHT EMITTING DIODE BACKLIGHTING SYSTEM FOR AN ELECTRONIC DISPLAY 审中-公开
标题翻译：用于控制电子显示器的多发光二极管背光系统的系统和方法
公开(公告)号：WO2008089095A2
公开(公告)日：2008-07-24
申请号：PCT/US2008/050911
申请日：2008-01-11
申请人： MSILICA , THANDI, Gurjit S. , S, Dilip , SANTO, Hendrik , VI, Kien
发明人： THANDI, Gurjit S. , S, Dilip , SANTO, Hendrik , VI, Kien
IPC分类号： G09G3/32
CPC分类号： G09G3/3413 , G09G2320/064 , H05B33/0815 , H05B33/0827 , Y02B20/346
摘要： The present invention relates to displays that use LED strings for backlighting. A lead string is provided with continuous drive voltage and the non-lead strings are provided with pulsed drive pulses. The string having the highest forward voltage is selected as the lead string. Feedback information indicative of the currents flowing through the non-lead strings is used to determine the duty cycles of the voltage pulses provided to drive the non-lead strings. The non-lead strings are controlled using pulsed drive voltages to minimize power dissipation in the circuit.
摘要翻译：本发明涉及使用LED串进行背光照明的显示器。引线串具有连续驱动电压，非引线串提供脉冲驱动脉冲。选择具有最高正向电压的串作为引线串。指示流经非引线串的电流的反馈信息用于确定为驱动非引线串提供的电压脉冲的占空比。使用脉冲驱动电压来控制非引线串，以最小化电路中的功耗。

8. 发明申请

WO2011090635A1 METHOD AND APPARATUS FOR AN INTELLIGENT LIGHT EMITTING DIODE DRIVER HAVING POWER FACTOR CORRECTION CAPABILITY 审中-公开
标题翻译：具有功率因数校正能力的智能发光二极管驱动器的方法和装置
公开(公告)号：WO2011090635A1
公开(公告)日：2011-07-28
申请号：PCT/US2010/061011
申请日：2010-12-17
申请人： ATMEL CORPORATION , SANTO, Hendrik , SCHINDLER, Matthew, D. , S, Dilip , DHAYAGUDE, Tushar
发明人： SANTO, Hendrik , SCHINDLER, Matthew, D. , S, Dilip , DHAYAGUDE, Tushar
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , G09G3/342 , H05B33/0842
摘要： The present invention relates to circuits and methods for controlling one or more LED strings. The circuit comprises a programmable controller coupled to one or more detectors, wherein the one or more detectors are configured to detect one or more measurable parameters of one or more LEDs or LED drivers. The controller is configured to receive information from the one or more detectors related to the one or more measurable parameters and use that information to determine the desired drive voltage for the LED strings. The controller is associated with a power supply having power factor correction (PFC) capability. The controller provides the power supply with a control signal indicative of the desired drive voltage for one or more LED strings. The power supply also receives ac voltage and current waveforms as inputs and performs power factor correction and rectified waveforms related to the ac waveforms. The power supply generates the desired drive voltage based on the control signal.
摘要翻译：本发明涉及用于控制一个或多个LED串的电路和方法。电路包括耦合到一个或多个检测器的可编程控制器，其中所述一个或多个检测器被配置为检测一个或多个LED或LED驱动器的一个或多个可测量的参数。控制器被配置为从与一个或多个可测量参数相关的一个或多个检测器接收信息，并使用该信息来确定LED串所需的驱动电压。控制器与具有功率因数校正（PFC）能力的电源相关联。控制器为电源提供指示一个或多个LED串的期望驱动电压的控制信号。电源还接收交流电压和电流波形作为输入，并进行与交流波形相关的功率因数校正和整流波形。电源根据控制信号产生所需的驱动电压。

9. 发明申请

WO2011008869A1 METHOD AND APPARATUS FOR SUB-ASSEMBLY ERROR DETECTION IN HIGH VOLTAGE ANALOG CURCUITS AND PINS 审中-公开
标题翻译：用于高电压模拟电路和引脚中的组件错误检测的方法和装置
公开(公告)号：WO2011008869A1
公开(公告)日：2011-01-20
申请号：PCT/US2010/041991
申请日：2010-07-14
申请人： MSILICA, INCORPORATED , S, Dilip , SANTO, Hendrik , CHEN, Sean , KIM, Minjong , KANNAN, Sivaprakash , VIRAJPET, Balaji
发明人： S, Dilip , SANTO, Hendrik , CHEN, Sean , KIM, Minjong , KANNAN, Sivaprakash , VIRAJPET, Balaji
IPC分类号： G01R31/28
CPC分类号： G01R31/3163 , G01R31/3187
摘要： The innovation relates to systems and/or methodologies for error detection during sub-assembly in high voltage analog circuits. A signal driver communicates test signals to one or more high voltage analog circuits, and a state machine compares the electrical and/or thermal responses of the high voltage analog circuits to a set of predetermined expected results (e.g., signatures). The signal driver and state machine can be incorporated into the high voltage analog circuits. The expected results can be stored in the target circuits in the form of look-up tables, matrices, and so forth. Errors, such as, dry solders and bridge solders can be determined based on the comparison of the obtained responses to the expected signatures.
摘要翻译：该创新涉及用于在高压模拟电路中的子组装期间的错误检测的系统和/或方法。信号驱动器将测试信号传送到一个或多个高压模拟电路，并且状态机将高压模拟电路的电和/或热响应与一组预定的预期结果（例如，签名）进行比较。信号驱动器和状态机可以并入高压模拟电路。预期结果可以以查询表，矩阵等的形式存储在目标电路中。可以根据所获得的响应与预期签名的比较来确定干燥焊料和桥焊机等错误。

10. 发明申请

WO2009135228A2 METHODS AND CIRCUITS FOR TRIODE REGION DETECTION 审中-公开
标题翻译：三区域检测方法与电路
公开(公告)号：WO2009135228A2
公开(公告)日：2009-11-05
申请号：PCT/US2009/048769
申请日：2009-06-26
申请人： MSILICA INCORPORATED , SANTO, Hendrik , VI, Klen , S, Dilip
发明人： SANTO, Hendrik , VI, Klen , S, Dilip
IPC分类号： H03K5/153
CPC分类号： H03K17/18
摘要： The present invention relates to circuits and methods for detecting transistor operation in the triode region including a circuit for a transistor in a constant current source. The circuit comprises a detector having a first input, a second input, and an output. The first input of the detector is coupled to the source of the transistor and the second input of the detector is coupled to the set point terminal of the constant current source. The circuit also comprises a flag coupled to the detector output. The detector has parameters selected so that, when the voltage at the source of the transistor satisfies a reference condition, the output of the detector sets the flag. The reference condition is established relative to the voltage at the set point terminal of the constant current source and relative to the triode transition voltage of the transistor at a selected drain-source current.
摘要翻译：本发明涉及用于检测三极管区域中的晶体管工作的电路和方法，包括恒流源中的晶体管的电路。电路包括具有第一输入，第二输入和输出的检测器。检测器的第一输入耦合到晶体管的源极，并且检测器的第二输入端耦合到恒流源的设定点端子。电路还包括耦合到检测器输出的标志。检测器具有选择的参数，使得当晶体管的源极处的电压满足参考条件时，检测器的输出设置标志。相对于恒定电流源的设定点端子处的电压并且相对于所选择的漏极 - 源极电流下的晶体管的三极管转换电压，建立参考条件。

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