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1. 发明授权

US08149250B2 Gamma curve correction for TN and TFT display modules 有权
标题翻译： TN和TFT显示模块的伽马曲线校正
公开(公告)号：US08149250B2
公开(公告)日：2012-04-03
申请号：US11190621
申请日：2005-07-27
申请人： Helmut Burkhardt , Achim Stellberger , Paul Zehnich , Frank Kronmuller
发明人： Helmut Burkhardt , Achim Stellberger , Paul Zehnich , Frank Kronmuller
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/2007 , G09G2320/0673 , G09G2320/0693 , G09G2330/028
摘要： A circuit and methods eliminating production related luminance variations of electronic display applies to all display technologies that require gamma adjustment or also adjustment of other display parameters e.g. brightness or contrast as e.g. LCD or OLED display modules are disclosed. This is performed by individual trimming of the display driver's gamma curve One alternative is that an end-user has access to a non-volatile memory and replaces the factory default settings of the gamma curve with individual settings. Another alternative is to load gamma curve parameters from the non-volatile memory to gamma control registers and perform tweaking of the gamma curve from these control registers on top of the factory default settings in the non-volatile memory.
摘要翻译：消除电子显示器的生产相关亮度变化的电路和方法适用于需要伽马调整的所有显示技术或者也可以调整其它显示参数，例如，亮度或对比度。 LCD或OLED显示模块被公开。这是通过对显示驱动程序的伽马曲线进行单独修剪来实现的。另一种替代方案是最终用户可以访问非易失性存储器，并用各个设置替换出伽马曲线的出厂默认设置。另一个选择是将伽马曲线参数从非易失性存储器加载到伽玛控制寄存器，并在非易失性存储器的出厂默认设置之上，从这些控制寄存器执行伽马曲线的调整。

2. 发明申请

US20070013725A1 Gamma curve correction for TN and TFT display modules 有权
标题翻译： TN和TFT显示模块的伽马曲线校正
公开(公告)号：US20070013725A1
公开(公告)日：2007-01-18
申请号：US11190621
申请日：2005-07-27
申请人： Helmut Burkhardt , Achim Stellberger , Paul Zehnich , Frank Kronmuller
发明人： Helmut Burkhardt , Achim Stellberger , Paul Zehnich , Frank Kronmuller
IPC分类号： G09G5/10
CPC分类号： G09G3/2007 , G09G2320/0673 , G09G2320/0693 , G09G2330/028
摘要： A circuit and methods eliminating production related luminance variations of electronic display applies to all display technologies that require gamma adjustment or also adjustment of other display parameters e.g. brightness or contrast as e.g. LCD or OLED display modules are disclosed. This is performed by individual trimming of the display driver's gamma curve One alternative is that an end-user has access to a non-volatile memory and replaces the factory default settings of the gamma curve with individual settings. Another alternative is to load gamma curve parameters from the non-volatile memory to gamma control registers and perform tweaking of the gamma curve from these control registers on top of the factory default settings in the non-volatile memory.
摘要翻译：消除电子显示器的生产相关亮度变化的电路和方法适用于需要伽马调整的所有显示技术或者也可以调整其它显示参数，例如，亮度或对比度。 LCD或OLED显示模块被公开。这是通过对显示驱动程序的伽马曲线进行单独修剪来实现的。另一种替代方案是最终用户可以访问非易失性存储器，并用各个设置替换出伽马曲线的出厂默认设置。另一个选择是将伽马曲线参数从非易失性存储器加载到伽玛控制寄存器，并在非易失性存储器的出厂默认设置之上，从这些控制寄存器执行伽马曲线的调整。

3. 发明授权

US06414552B1 Operational transconductance amplifier with a non-linear current mirror for improved slew rate 有权
标题翻译：具有非线性电流镜的工作跨导放大器，可提高转换速率
公开(公告)号：US06414552B1
公开(公告)日：2002-07-02
申请号：US09992456
申请日：2001-11-16
申请人： Frank Kronmueller , Paul Zehnich
发明人： Frank Kronmueller , Paul Zehnich
IPC分类号： H03F304
CPC分类号： H03F3/45183 , G05F3/262 , H03F3/3023 , H03F3/345 , H03F2203/45658
摘要： A non-linear current mirror is achieved. The non-linear current mirror is particularly useful in the output stage of an operational transconductance amplifier for improving slew rate and stability while maintaining low bias current. The non-linear current mirror circuit comprises, first, a first MOS transistor has gate and drain are coupled together and further coupled to a first current input. A second MOS transistor has gate coupled to the first MOS transistor gate, and the drain is coupled to a second current input. A third MOS transistor has drain is coupled to the second MOS transistor source, and the gate is coupled to the second MOS transistor drain. A fourth MOS transistor has gate coupled to the third MOS transistor gate. The source is coupled to the first MOS transistor source and the third MOS transistor source. Finally, the drain forms a current output.
摘要翻译：实现了非线性电流镜。非线性电流镜在用于提高转换速率和稳定性同时保持低偏置电流的运算跨导放大器的输出级中特别有用。非线性电流镜电路包括：首先，第一MOS晶体管具有栅极和漏极耦合在一起，并且还耦合到第一电流输入。第二MOS晶体管具有栅极耦合到第一MOS晶体管栅极，并且漏极耦合到第二电流输入。具有漏极的第三MOS晶体管耦合到第二MOS晶体管源，并且栅极耦合到第二MOS晶体管漏极。第四MOS晶体管具有栅极耦合到第三MOS晶体管栅极。源极耦合到第一MOS晶体管源极和第三MOS晶体管源极。最后，漏极形成电流输出。

4. 发明授权

US07830197B2 Adjustable integrator using a single capacitance 有权
标题翻译：可调整积分器使用单个电容
公开(公告)号：US07830197B2
公开(公告)日：2010-11-09
申请号：US12317421
申请日：2008-12-22
申请人： Achim Stellberger , Michael Keller , Paul Zehnich
发明人： Achim Stellberger , Michael Keller , Paul Zehnich
IPC分类号： H03K5/00
CPC分类号： G06G7/186
摘要： An integrating amplifier on an IC, which comprises a feedback loop using an external device as an integrating capacitor, has added a second feedback loop that provides an additional current to the input of the amplifier, which current can be used to increase the input range of the charge that can be measured without needing another external capacitor or pad.
摘要翻译： IC上的积分放大器，其包括使用外部装置作为积分电容器的反馈回路，添加了第二反馈回路，其向放大器的输入端提供额外的电流，该电流可用于增加放大器的输入范围可以测量的电荷，而不需要另一个外部电容器或焊盘。

5. 发明申请

US20100156501A1 Adjustable integrator using a single capacitance 有权
公开(公告)号：US20100156501A1
公开(公告)日：2010-06-24
申请号：US12317421
申请日：2008-12-22
申请人： Achim Stellberger , Michael Keller , Paul Zehnich
发明人： Achim Stellberger , Michael Keller , Paul Zehnich
IPC分类号： G06G7/18
CPC分类号： G06G7/186
摘要： An integrating amplifier on an IC, which comprises a feedback loop using an external device as an integrating capacitor, has added a second feedback loop that provides an additional current to the input of the amplifier, which current can be used to increase the input range of the charge that can be measured without needing another external capacitor or pad.

6. 发明授权

US06605833B2 Integrated circuit with circuit elements having different supply voltages 有权
公开(公告)号：US06605833B2
公开(公告)日：2003-08-12
申请号：US09975617
申请日：2001-10-11
申请人： Paul Zehnich
发明人： Paul Zehnich
IPC分类号： H01L2710
CPC分类号： G05F1/465 , G05F3/247 , H01L2924/0002 , H01L2924/00
摘要： An integrated circuit includes first circuit elements with a supply voltage which is equal to the external supply voltage of the IC, and second circuit elements with a supply voltage which is smaller than the external supply voltage and is derived as an internal supply voltage from the first supply voltage. An active voltage divider supplies the internal supply voltage and includes a first resistance voltage divider connected between the supply voltage terminal and the reference potential, an impedance transformer connected after the first resistance voltage divider, and a circuit for controlling the scaled voltage at the tap of the first resistance voltage divider as a function of the load of the second circuit elements.

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