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1. 发明授权

US09130514B2 Vcom switching amplifier 有权
标题翻译： Vcom开关放大器
公开(公告)号：US09130514B2
公开(公告)日：2015-09-08
申请号：US13401591
申请日：2012-02-21
申请人： Ronald Bonshaw Koo
发明人： Ronald Bonshaw Koo
IPC分类号： G06F3/038 , G09G5/00 , H03F3/217
CPC分类号： H03F3/2173 , G09G2330/021 , H03F3/2175
摘要： Certain electronic devices with displays, such as LCDs, are configured to provide a common voltage to a display backplane. The common voltage is supplied by a common voltage application circuit coupled to the display. The common voltage application circuit includes a switching amplifier configured to output the common voltage. The switching amplifier functions as a switching power supply having improved power efficiency compared to conventional common voltage application circuits.
摘要翻译：具有诸如LCD的显示器的某些电子设备被配置为向显示器背板提供公共电压。公共电压由耦合到显示器的公共电压施加电路提供。公共电压施加电路包括被配置为输出公共电压的开关放大器。与传统的公共电压应用电路相比，开关放大器用作具有改善的功率效率的开关电源。

2. 发明申请

US20120218249A1 VCOM SWITCHING AMPLIFIER 有权
标题翻译： VCOM切换放大器
公开(公告)号：US20120218249A1
公开(公告)日：2012-08-30
申请号：US13401591
申请日：2012-02-21
申请人： Ronald Bonshaw Koo
发明人： Ronald Bonshaw Koo
IPC分类号： G09G3/36 , G09G5/00
CPC分类号： H03F3/2173 , G09G2330/021 , H03F3/2175
摘要： Certain electronic devices with displays, such as LCDs, are configured to provide a common voltage to a display backplane. The common voltage is supplied by a common voltage application circuit coupled to the display. The common voltage application circuit includes a switching amplifier configured to output the common voltage. The switching amplifier functions as a switching power supply having improved power efficiency compared to conventional common voltage application circuits.
摘要翻译：具有诸如LCD的显示器的某些电子设备被配置为向显示器背板提供公共电压。公共电压由耦合到显示器的公共电压施加电路提供。公共电压施加电路包括被配置为输出公共电压的开关放大器。与传统的公共电压应用电路相比，开关放大器用作具有改善的功率效率的开关电源。

3. 发明申请

US20100073485A1 System and Method for Video Transmission Line Fault Detection 有权
标题翻译：视频传输线故障检测系统与方法
公开(公告)号：US20100073485A1
公开(公告)日：2010-03-25
申请号：US12623772
申请日：2009-11-23
申请人： Ronald Bonshaw Koo , Michael David Petersen
发明人： Ronald Bonshaw Koo , Michael David Petersen
IPC分类号： H04N17/00 , H04N5/14
CPC分类号： H04N5/148 , H04N5/18 , H04N7/102 , H04N17/00
摘要： A video circuit including a video amplifier adapted to generate an amplified output video signal from an input video signal; a short detection circuit adapted to generate a first signal indicative of whether there is a short present at an output of the video amplifier; and a load detection circuit adapted to generate a second signal indicative of whether there is a load coupled to the output of the video amplifier. The video circuit may further include an input signal detection circuit adapted to generate a third signal indicative of whether an input video signal is present. The third signal generated by the input signal detection circuit may be used to enable the outputting of the first and second signals in order to prevent the false indication of faults at the output of the video amplifier in the absence of an input video signal.
摘要翻译：一种视频电路，包括适于从输入视频信号产生放大的输出视频信号的视频放大器; 适于生成表示在视频放大器的输出处存在短暂存在的第一信号的短检测电路; 以及负载检测电路，其适于产生指示是否存在耦合到所述视频放大器的输出的负载的第二信号。视频电路还可以包括适于产生指示输入视频信号是否存在的第三信号的输入信号检测电路。由输入信号检测电路产生的第三信号可以用于输出第一和第二信号，以便在没有输入视频信号的情况下防止视频放大器的输出处的错误的错误指示。

4. 发明授权

US09728155B2 Gamma switching amplifier 有权
公开(公告)号：US09728155B2
公开(公告)日：2017-08-08
申请号：US13365082
申请日：2012-02-02
申请人： Ronald Bonshaw Koo
发明人： Ronald Bonshaw Koo
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G2310/0291 , G09G2320/0276 , G09G2330/021
摘要： Electronic devices with displays are configured to provide a gamma correction signal to each source driver chip driving the display. The gamma correction signal is supplied by a gamma application circuit coupled to each source driver chip. The gamma application circuit includes a switching amplifier configured to output a switching waveform and a filter to input the switching waveform and output the gamma correction signal to an input of each source driver chip. The switching amplifier functions as a switching power supply having improved power efficiency compared to conventional gamma application circuits.

5. 发明授权

US08045005B2 System and method for video transmission line fault detection 有权
标题翻译：视频传输线故障检测系统及方法
公开(公告)号：US08045005B2
公开(公告)日：2011-10-25
申请号：US12623772
申请日：2009-11-23
申请人： Ronald Bonshaw Koo , Michael David Petersen
发明人： Ronald Bonshaw Koo , Michael David Petersen
IPC分类号： H04N17/00 , G06F19/00 , G01R31/08
CPC分类号： H04N5/148 , H04N5/18 , H04N7/102 , H04N17/00
摘要： A video circuit including a video amplifier adapted to generate an amplified output video signal from an input video signal; a short detection circuit adapted to generate a first signal indicative of whether there is a short present at an output of the video amplifier; and a load detection circuit adapted to generate a second signal indicative of whether there is a load coupled to the output of the video amplifier. The video circuit may further include an input signal detection circuit adapted to generate a third signal indicative of whether an input video signal is present. The third signal generated by the input signal detection circuit may be used to enable the outputting of the first and second signals in order to prevent the false indication of faults at the output of the video amplifier in the absence of an input video signal.
摘要翻译：一种视频电路，包括适于从输入视频信号产生放大的输出视频信号的视频放大器; 适于生成表示在视频放大器的输出处存在短暂存在的第一信号的短检测电路; 以及负载检测电路，其适于产生指示是否存在耦合到所述视频放大器的输出的负载的第二信号。视频电路还可以包括适于产生指示输入视频信号是否存在的第三信号的输入信号检测电路。由输入信号检测电路产生的第三信号可以用于输出第一和第二信号，以便在没有输入视频信号的情况下防止视频放大器的输出处的错误的错误指示。

6. 发明授权

US09330624B1 VCOM amplifier with fast-switching gain 有权
标题翻译： VCOM放大器具有快速开关增益
公开(公告)号：US09330624B1
公开(公告)日：2016-05-03
申请号：US13405090
申请日：2012-02-24
申请人： Cheng-Wei Pei , Ronald Bonshaw Koo
发明人： Cheng-Wei Pei , Ronald Bonshaw Koo
IPC分类号： G06F3/038 , G09G5/00 , G09G3/36 , G02F1/1343 , H04N13/04 , G02F1/1362 , G02F1/1337
CPC分类号： G09G3/3655 , G02F1/134363 , G02F1/1362 , G02F2001/133776 , G09G3/3607 , G09G3/3611 , G09G3/3648 , G09G3/3696 , G09G2300/08 , G09G2330/021 , H03F3/2173 , H03F3/2175 , H04N13/359
摘要： Electronic devices with a VCOM display panel are configured to provide a common voltage VCOM to a VCOM display panel backplane, referred to as a VCOM reference plane. The common voltage is supplied by a VCOM application circuit coupled to the VCOM reference plane. The VCOM application circuit includes a VCOM amplifier having a closed-loop gain. The VCOM application circuit is configurable to quickly adjust the closed-loop gain so as to adjust the settling characteristics of the common voltage VCOM output by the VCOM application circuit. The VCOM application circuit having adjustable closed-loop gain also reduces the amount of power to be dissipated, and therefore the amount of heat generation, in the VCOM amplifier.
摘要翻译：具有VCOM显示面板的电子设备被配置为向VCOM显示面板背板（称为VCOM参考平面）提供公共电压VCOM。公共电压由耦合到VCOM参考平面的VCOM应用电路提供。 VCOM应用电路包括具有闭环增益的VCOM放大器。 VCOM应用电路可配置为快速调整闭环增益，以调整由VCOM应用电路输出的公共电压VCOM的稳定特性。具有可调闭环增益的VCOM应用电路也减少了在VCOM放大器中耗散的功率量，并因此降低了发热量。

7. 发明授权

US08125572B2 System and method for automatic power-up and power-down of an output video circuit 有权
标题翻译：输出视频电路自动上电和掉电的系统和方法
公开(公告)号：US08125572B2
公开(公告)日：2012-02-28
申请号：US11081259
申请日：2005-03-15
申请人： Ronald Bonshaw Koo
发明人： Ronald Bonshaw Koo
IPC分类号： H04N5/63 , H04N5/64
CPC分类号： G06F3/147 , G06F3/14 , G09G2330/022
摘要： A system and method for configuring a video circuit into a low power consumption mode and a high power consumption mode. The system comprises an input signal detection circuit adapted to generate a first signal indicative of whether an input video signal is present at the input of the video circuit; an output load detection circuit adapted to generate a second signal indicative of whether a load is connected to the output of the video circuit; and a control device adapted to generate a third signal to control the power consumption mode of the video circuit in response to the first and second signals. The method entails detecting whether an input video signal is present; detecting whether the load is present; and configuring the video circuit for high power consumption if both the input video signal and the load are present, otherwise configuring the video circuit for low power consumption.
摘要翻译：一种用于将视频电路配置为低功耗模式和高功耗模式的系统和方法。该系统包括输入信号检测电路，适于生成表示视频电路的输入端是否存在输入视频信号的第一信号; 输出负载检测电路，适于生成指示负载是否连接到视频电路的输出的第二信号; 以及适于产生第三信号以控制响应于第一和第二信号的视频电路的功耗模式的控制装置。该方法需要检测输入视频信号是否存在; 检测负载是否存在; 并且如果存在输入视频信号和负载两者，则配置视频电路以实现高功耗，否则将视频电路配置为低功耗。

8. 发明授权

US07675544B2 System and method for video transmission line fault detection 有权
标题翻译：视频传输线故障检测系统及方法
公开(公告)号：US07675544B2
公开(公告)日：2010-03-09
申请号：US11149986
申请日：2005-06-10
申请人： Ronald Bonshaw Koo , Michael David Petersen
发明人： Ronald Bonshaw Koo , Michael David Petersen
IPC分类号： H04N17/00 , G01R27/00 , H03F1/00 , G01N27/26 , G01R31/08
CPC分类号： H04N5/148 , H04N5/18 , H04N7/102 , H04N17/00
摘要： A video circuit including a video amplifier adapted to generate an amplified output video signal from an input video signal; a short detection circuit adapted to generate a first signal indicative of whether there is a short present at an output of the video amplifier; and a load detection circuit adapted to generate a second signal indicative of whether there is a load coupled to the output of the video amplifier. The video circuit may further include an input signal detection circuit adapted to generate a third signal indicative of whether an input video signal is present. The third signal generated by the input signal detection circuit may be used to enable the outputting of the first and second signals in order to prevent the false indication of faults at the output of the video amplifier in the absence of an input video signal.
摘要翻译：一种视频电路，包括适于从输入视频信号产生放大的输出视频信号的视频放大器; 适于生成表示在视频放大器的输出处存在短暂存在的第一信号的短检测电路; 以及负载检测电路，其适于产生指示是否存在耦合到所述视频放大器的输出的负载的第二信号。视频电路还可以包括适于产生指示输入视频信号是否存在的第三信号的输入信号检测电路。由输入信号检测电路产生的第三信号可以用于输出第一和第二信号，以便在没有输入视频信号的情况下防止视频放大器的输出处的错误的错误指示。

9. 发明授权

US09305506B2 VCOM amplifier with transient assist circuit 有权
标题翻译：具有瞬态辅助电路的VCOM放大器
公开(公告)号：US09305506B2
公开(公告)日：2016-04-05
申请号：US13405049
申请日：2012-02-24
申请人： Cheng-Wei Pei , Ronald Bonshaw Koo , James Jason LoCascio , Min Park , Christopher Francis Edwards
发明人： Cheng-Wei Pei , Ronald Bonshaw Koo , James Jason LoCascio , Min Park , Christopher Francis Edwards
IPC分类号： G09G3/36
CPC分类号： G09G3/3655 , G09G2330/025
摘要： Electronic devices with a VCOM display panel are configured to provide a common voltage VCOM to a VCOM display panel backplane, referred to as a VCOM reference plane. The common voltage is supplied by a VCOM application circuit coupled to the VCOM reference plane. The VCOM application circuit includes a linear amplifier, such as a Class AB amplifier, coupled to a switched transient assist circuit configured to output the common voltage. The switched transient assist circuit stabilizes the amplifier in the presence of large transient output currents but with minimized power dissipation and heat rise in the amplifier.
摘要翻译：具有VCOM显示面板的电子设备被配置为向VCOM显示面板背板（称为VCOM参考平面）提供公共电压VCOM。公共电压由耦合到VCOM参考平面的VCOM应用电路提供。 VCOM应用电路包括耦合到被配置为输出公共电压的开关瞬态辅助电路的线性放大器，例如AB类放大器。开关瞬态辅助电路在大瞬变输出电流存在的情况下稳定放大器，但放大器中的功耗和散热最小化。

10. 发明申请

US20120218319A1 GAMMA SWITCHING AMPLIFIER 有权
标题翻译： GAMMA开关放大器
公开(公告)号：US20120218319A1
公开(公告)日：2012-08-30
申请号：US13365082
申请日：2012-02-02
申请人： Ronald Bonshaw Koo
发明人： Ronald Bonshaw Koo
IPC分类号： G09G5/10
CPC分类号： G09G3/3696 , G09G2310/0291 , G09G2320/0276 , G09G2330/021
摘要： Electronic devices with displays are configured to provide a gamma correction signal to each source driver chip driving the display. The gamma correction signal is supplied by a gamma application circuit coupled to each source driver chip. The gamma application circuit includes a switching amplifier configured to output a switching waveform and a filter to input the switching waveform and output the gamma correction signal to an input of each source driver chip. The switching amplifier functions as a switching power supply having improved power efficiency compared to conventional gamma application circuits.
摘要翻译：具有显示器的电子设备被配置为向驱动显示器的每个源驱动器芯片提供伽马校正信号。伽马校正信号由耦合到每个源极驱动器芯片的伽马应用电路提供。 γ应用电路包括：开关放大器，被配置为输出开关波形和滤波器以输入开关波形，并将伽马校正信号输出到每个源极驱动器芯片的输入端。与常规伽马应用电路相比，开关放大器用作具有改善的功率效率的开关电源。

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