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11. 发明授权

US09622307B2 Apparatus and technique for modular electronic display control 有权
公开(公告)号：US09622307B2
公开(公告)日：2017-04-11
申请号：US13426301
申请日：2012-03-21
申请人： Tushar Heramb Dhayagude , Dilip Sangam , Hendrik Santo , Anjan Sen
发明人： Tushar Heramb Dhayagude , Dilip Sangam , Hendrik Santo , Anjan Sen
IPC分类号： H05B33/08 , G09G3/20 , G09G3/34
CPC分类号： H05B33/0827 , G09G3/2085 , G09G3/2088 , G09G3/3426 , G09G2320/029 , G09G2320/04 , G09G2320/064 , G09G2330/021 , H05B33/0851
摘要： The present invention discloses apparatus and techniques for modular backlighting control of a display. The display includes a number of strings of LEDs. The display is divided into several sections, and each section includes one or more strings of LEDs. A local controller is assigned to each section. The local controller receives feedback signals from the strings of LEDs in its sections and controls the drive voltages and drive currents of those strings. The local controllers communicate with each other and also with the main system controller.

12. 发明授权

US09814109B2 Apparatus and technique for modular electronic display control 有权
公开(公告)号：US09814109B2
公开(公告)日：2017-11-07
申请号：US11942239
申请日：2007-11-19
申请人： Tushar Heramb Dhayagude , Dilip Sangam , Hendrik Santo , Anjan Sen
发明人： Tushar Heramb Dhayagude , Dilip Sangam , Hendrik Santo , Anjan Sen
IPC分类号： H05B33/08 , G09G3/20 , G09G3/34
CPC分类号： H05B33/0827 , G09G3/2085 , G09G3/2088 , G09G3/3426 , G09G2320/029 , G09G2320/04 , G09G2320/064 , G09G2330/021 , H05B33/0851
摘要： The present invention discloses apparatus and techniques for modular backlighting control of a display. The display includes a number of strings of LEDs. The display is divided into several sections, and each section includes one or more strings of LEDs. A local controller is assigned to each section. The local controller receives feedback signals from the strings of LEDs in its sections and controls the drive voltages and drive currents of those strings. The local controllers communicate with each other and also with the main system controller.

13. 发明授权

US08493300B2 Architecture and technique for inter-chip communication 有权
公开(公告)号：US08493300B2
公开(公告)日：2013-07-23
申请号：US12046280
申请日：2008-03-11
申请人： Hendrik Santo , Ranajit Ghoman , Dilip Sangam , Kien Vi
发明人： Hendrik Santo , Ranajit Ghoman , Dilip Sangam , Kien Vi
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.

14. 发明授权

US08222910B2 Method and apparatus for sub-assembly error detection in high voltage analog circuits and pins 有权
标题翻译：用于高压模拟电路和引脚中的子组件错误检测的方法和装置
公开(公告)号：US08222910B2
公开(公告)日：2012-07-17
申请号：US12504308
申请日：2009-07-16
申请人： Dilip Sangam , Hendrik Santo , Sean Chen , Minjong Kim , Sivaprakash Kannan , Balaji Virajpet
发明人： Dilip Sangam , Hendrik Santo , Sean Chen , Minjong Kim , Sivaprakash Kannan , Balaji Virajpet
IPC分类号： G01R31/02
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。可以根据获得的对预期签名的响应的比较来确定干焊料和桥焊机等错误。

15. 发明授权

US08698728B2 Apparatus for integrated backlight and dynamic gamma/VCOM control on silicon chips 有权
标题翻译：用于集成背光和用于硅芯片的动态伽马/ VCOM控制的装置
公开(公告)号：US08698728B2
公开(公告)日：2014-04-15
申请号：US12610941
申请日：2009-11-02
申请人： Hendrik Santo , Dilip Sangam , Manish Kulkarni
发明人： Hendrik Santo , Dilip Sangam , Manish Kulkarni
IPC分类号： G09G3/36
CPC分类号： G09G3/3677 , G09G3/3406 , G09G3/3426 , G09G3/3611 , G09G2310/0237 , G09G2310/08 , G09G2320/0261
摘要： Integrated backlight unit (BLU) and liquid crystal systems and circuits in liquid crystal display (LCD) systems are described. An LCD system can include a BLU to emit light at different intensities, and a BLU controller coupled to the BLU and configured to control the intensities. An LCD unit can receive the emitted light, and emanate light at a selected luminosity. The LCD unit can include pixels corresponding to: a liquid crystalline medium to provide a transmittance of the light emitted or to transmit a color light; and transistors adapted to modulate reference voltages. An LCD unit controller can be coupled to the LCD unit and configured to control luminosity of the light emanated from the LCD unit. The BLU and the LCD unit, which can be integrated in a single integrated circuit, can be controlled during concurrent time periods for contrast enhancement of images displayed from the LCD unit.
摘要翻译：描述了液晶显示（LCD）系统中的集成背光单元（BLU）和液晶系统和电路。 LCD系统可以包括以不同强度发光的BLU和耦合到BLU并被配置为控制强度的BLU控制器。 LCD单元可以接收发射的光，并以选定的亮度发出光。 LCD单元可以包括对应于液晶介质的像素，以提供所发射的光的透射率或透射色光; 以及适于调制参考电压的晶体管。 LCD单元控制器可以耦合到LCD单元并且被配置为控制从LCD单元发出的光的亮度。可以在并发时间段内控制可集成在单个集成电路中的BLU和LCD单元，从而对从LCD单元显示的图像进行对比度增强。

16. 发明授权

US08169450B2 System and method for ambient-light adaptive intensity control for an electronic display 有权
标题翻译：用于电子显示器的环境光自适应强度控制的系统和方法
公开(公告)号：US08169450B2
公开(公告)日：2012-05-01
申请号：US11805522
申请日：2007-05-22
申请人： Hendrik Santo , Gurjit Thandi , Dilip Sangam , Kien Vi
发明人： Hendrik Santo , Gurjit Thandi , Dilip Sangam , Kien Vi
IPC分类号： G09G5/10
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。

17. 发明授权

US08049708B2 Hybrid analog and digital architecture for controlling backlight light emitting diodes of an electronic display 有权
标题翻译：用于控制电子显示器的背光发光二极管的混合模拟和数字架构
公开(公告)号：US08049708B2
公开(公告)日：2011-11-01
申请号：US11652739
申请日：2007-01-12
申请人： Hendrik Santo , Dilip Sangam , Gurjit Thandi , Kien Vi
发明人： Hendrik Santo , Dilip Sangam , Gurjit Thandi , Kien Vi
IPC分类号： G09G3/36
CPC分类号： H05B33/0827 , G09G3/3406 , G09G3/342 , G09G2320/0626
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.
摘要翻译：本发明提供一种用于控制液晶显示器中的LED串的控制器。混合控制器使用模拟和数字电路组件。误差放大器用于将从LED串接收的模拟反馈信号与参考信号进行比较。这些比较的结果被转换成数字数据并由数字信号处理器（DSP）处理。 DSP根据通过LED串的实际电流（由反馈信号表示）与期望的电流（由参考信号表示）之间的偏差来计算LED串的驱动电压。模拟驱动器为LED串提供驱动电压。

18. 发明授权

US08508730B2 Quality assurance of a solid-state illumination source 有权
标题翻译：固态照明光源的质量保证
公开(公告)号：US08508730B2
公开(公告)日：2013-08-13
申请号：US13016935
申请日：2011-01-28
申请人： Kevin Hempson , Dilip Sangam
发明人： Kevin Hempson , Dilip Sangam
IPC分类号： G01J3/28
CPC分类号： H05B41/2806 , G01J1/16 , G01J1/42 , G01J3/505 , G01J2001/4252 , Y02B20/22
摘要： System(s), apparatus(es), and method(s) are provided for control of quality of light emitted from a group of solid-state light (SSL) sources that are part of an illumination fixture. The control is based at least in part on regulation of the spectral power distribution (SPD) of the light to match a SPD of a reference light source. A spectroscopic analyzer collects electromagnetic (EM) radiation emitted from the group of SSL sources and EM radiation substantially emitted from the reference light source. A first controller analyzes spectroscopic data related to SPDs of the group of SSL sources and the reference light source and, based on the analysis issues a configuration of the group of SSL sources. Implementation of the configuration causes the group of SSL sources to emit EM radiation with a SPD that nearly matches the SPD of the EM radiation substantially emitted from the reference light source.
摘要翻译：提供系统，装置和方法以控制从作为照明器具的一部分的一组固态光源（SSL）源发射的光的质量。该控制至少部分地基于对与参考光源的SPD匹配的光的光谱功率分布（SPD）的调节。光谱分析仪收集从该组源发射的电磁（EM）辐射和基本上从参考光源发射的EM辐射。第一个控制器分析与SSL资源组和参考光源相关的SPD的光谱数据，并且基于分析问题对SSL源组进行配置。该配置的实现使得该组SSL源能够发射EMD辐射，SPD几乎与基准光源基本上发射的EM辐射的SPD匹配。

19. 发明申请

US20140153291A1 DUAL-MODE, AC/DC POWER CONVERTER WITH POWER FACTOR CORRECTION 有权
标题翻译：双模式，交流/直流电源转换器，具有功率因数校正功能
公开(公告)号：US20140153291A1
公开(公告)日：2014-06-05
申请号：US13691088
申请日：2012-11-30
申请人： Hong Zhang , Sean S. Chen , Dilip Sangam
发明人： Hong Zhang , Sean S. Chen , Dilip Sangam
IPC分类号： H03K3/00 , H02M3/335
CPC分类号： H02M3/33507 , H02M1/4258 , H05B33/0809 , Y02B70/126
摘要： A dual-mode circuit for the control of an AC/DC power converter is disclosed. An example dual-mode controller circuit generates a waveform that drives a switch on or off and controls the power converter. The controller circuit in addition to power factor correction (PFC) circuitry includes a critical conducting mode (CrM) module as well as a discontinuous conducting mode (DCM) module configured to generate waveforms adapted for CrM and DCM operation of a power converter. The circuit includes a node for receiving a feedback signal of a voltage or a current. Based on the received signal, one of the modules is selected at a time to supply the waveform at the output of the dual-mode controller. An example of the output waveform is a series of pulses that are configured to drive the switch that controls the transfer of power between input and output of the power converter.
摘要翻译：公开了一种用于控制AC / DC电力转换器的双模电路。示例双模控制器电路产生一个驱动开关打开或关闭并控制电源转换器的波形。功率因数校正（PFC）电路除了功率因数校正（PFC）电路之外，控制器电路包括临界导电模式（CrM）模块以及被配置为产生适于功率转换器的CrM和DCM操作的波形的不连续导通模式（DCM）模块。电路包括用于接收电压或电流的反馈信号的节点。基于接收信号，一次选择一个模块以在双模式控制器的输出处提供波形。输出波形的示例是被配置为驱动开关的一系列脉冲，其控制功率转换器的输入和输出之间的功率传递。

20. 发明授权

US08917231B2 Regulation of gamma characteristic in a display 有权
标题翻译：显示器中伽马特性的调节
公开(公告)号：US08917231B2
公开(公告)日：2014-12-23
申请号：US12972380
申请日：2010-12-17
申请人： Kevin Hempson , Dilip Sangam
发明人： Kevin Hempson , Dilip Sangam
IPC分类号： G09G3/36 , G09G3/34
CPC分类号： G09G3/342 , G09G3/3426 , G09G2320/0261 , G09G2320/0276 , G09G2320/064 , G09G2320/0646
摘要： System(s) and method(s) are provided for regulation of gamma characteristic of a display having solid-state-based backlight illumination. Regulation of the gamma characteristic can be accomplished at least in part through synchronization of data writing to a set of pixels in a display within a video frame with backlight illumination of a region of the display during a predetermined period, wherein the region is spanned by the set of pixels. Collection of data indicative of illumination intensity of light to be emitted in a region of a backlight source of the display during the predetermined period enables determination of at least one gamma value and at least one gamma reference voltage related to the at least one gamma value. Application of the at least one gamma reference voltage to the set of pixels adjusts the gamma characteristic thereof within the video frame.
摘要翻译：提供了用于调节具有固态背光照明的显示器的伽马特性的系统和方法。伽马特性的调节可以至少部分地通过数据写入与视频帧内的显示器中的一组像素的同步来实现，同时在预定时段期间通过显示器的区域的背光照明来进行数据写入，其中该区域由一组像素收集表示在预定时段期间在显示器的背光源的区域中要发射的光的照明强度的数据使得能够确定至少一个伽马值和至少一个与该至少一个伽马值有关的伽马参考电压。将至少一个伽马参考电压施加到该像素集合来调整视频帧内的伽马特性。

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