公开(公告)号：US20200065044A1

公开(公告)日：2020-02-27

申请号：US16658902

申请日：2019-10-21

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Willard R. True ,  Richard Berckefeldt ,  Kalluri R. Sarma

IPC: G06F3/14 ,  G06F1/16 ,  G06F21/50 ,  G06N3/02 ,  G06T7/00 ,  G01C23/00 ,  G06F3/147

Abstract: A method for verifying the integrity, continuity, and availability (ICA) of information displayed on an uncertified display is provided. The method comprises creating, on the high integrity device, application data for display on an uncertified display device; transmitting the application data to the uncertified display device for display; receiving, at the high integrity device from the uncertified display device, a captured image of the display captured using a screen capture feature on the uncertified display device; determining, at the high integrity device, an expected display image; comparing, at the high integrity device, the captured image of the display to the expected display image; identifying, at the high integrity device, a loss of ICA if one or more frames in the captured image fails the comparison with the expected display image; and causing the annunciation of a message indicating the loss of ICA when a loss of ICA is identified.

公开(公告)号：US20190179585A1

公开(公告)日：2019-06-13

申请号：US15959510

申请日：2018-04-23

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Willard R. True ,  Richard Berckefeldt ,  Kalluri R. Sarma

IPC: G06F3/14 ,  G06F21/50 ,  G06F1/16 ,  G06T7/00 ,  G06N3/02

Abstract: A method in a high integrity device for verifying the integrity, continuity, and availability (ICA) of information displayed on an uncertified display is provided. The method comprises creating, on the high integrity device, application data for display on an uncertified display device; transmitting the application data to the uncertified display device; receiving, at the high integrity device from an optical sensing device, a captured image of the display; determining, at the high integrity device, an expected display image to be displayed on the uncertified display device; comparing, at the high integrity device, the captured image of the display to the expected display image; identifying, at the high integrity device, a loss of ICA if one or more frames in the captured image fails the comparison with the expected display image; and causing the annunciation of a message indicating the loss of ICA when a loss of ICA is identified.

公开(公告)号：US10089927B2

公开(公告)日：2018-10-02

申请号：US15283620

申请日：2016-10-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Kalluri R. Sarma ,  Jerry A. Roush ,  John Schmidt

IPC: G09G3/30 ,  G09G3/3233

Abstract: An improved AM OLED pixel circuit and method of wide dynamic range dimming for AM OLED displays are disclosed that maintain color balance throughout the dimming range, and also maintain the uniformity of the luminance and chromaticity of the display at low gray-levels as the display is dimmed to lower luminance values. As such, AM OLED displays can meet the stringent color/dimming specifications required for existing and future avionics, cockpit, and hand-held military device display applications. Essentially, the OLED pixel circuit and method of dimming that are disclosed use Pulse Width Modulation (PWM) of the OLED pixel current to achieve the desired display luminance. Two example circuits are disclosed that externally PW modulate the common cathode voltage or common power supply voltage to modulate the OLED current in order to achieve the desired display luminance. Three example circuits are disclosed that incorporate additional transistor switches in the pixel circuit to modulate the OLED current during the frame time. By PWM of the OLED current, in combination with data voltage (or current) modulation, wide dynamic range dimming can be achieved while maintaining the color balance and the luminance and chromaticity uniformity required over the surface of the display involved.

公开(公告)号：US09769438B2

公开(公告)日：2017-09-19

申请号：US14842435

申请日：2015-09-01

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Robert E De Mers ,  L S Lamberth, Jr. ,  Brent D. Larson ,  Kalluri R. Sarma

IPC: G09G3/3208 ,  H04N9/31 ,  G09G3/20 ,  G09G5/42 ,  G09G3/00 ,  G09G3/3233

CPC classification number: H04N9/3147 ,  G09G3/002 ,  G09G3/2003 ,  G09G3/3208 ,  G09G3/3233 ,  G09G5/42 ,  G09G2300/0842 ,  G09G2360/142 ,  G09G2380/12

Abstract: A hybrid projection display system that provides image quality superior to that of a traditional projection display system is provided. The provided hybrid projection display system flexibly supports arbitrary screen sizes and non-planar screen surfaces.

公开(公告)号：US20170025064A1

公开(公告)日：2017-01-26

申请号：US15283620

申请日：2016-10-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Kalluri R. Sarma ,  Jerry A. Roush ,  John Schmidt

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G3/30 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2320/0233 ,  G09G2320/0606 ,  G09G2320/0626

Abstract: An improved AM OLED pixel circuit and method of wide dynamic range dimming for AM OLED displays are disclosed that maintain color balance throughout the dimming range, and also maintain the uniformity of the luminance and chromaticity of the display at low gray-levels as the display is dimmed to lower luminance values. As such, AM OLED displays can meet the stringent color/dimming specifications required for existing and future avionics, cockpit, and hand-held military device display applications. Essentially, the OLED pixel circuit and method of dimming that are disclosed use Pulse Width Modulation (PWM) of the OLED pixel current to achieve the desired display luminance. Two example circuits are disclosed that externally PW modulate the common cathode voltage or common power supply voltage to modulate the OLED current in order to achieve the desired display luminance. Three example circuits are disclosed that incorporate additional transistor switches in the pixel circuit to modulate the OLED current during the frame time. By PWM of the OLED current, in combination with data voltage (or current) modulation, wide dynamic range dimming can be achieved while maintaining the color balance and the luminance and chromaticity uniformity required over the surface of the display involved.

Abstract translation: 公开了一种改进的AM OLED像素电路和用于AM OLED显示器的宽动态范围调光的方法，其在整个调光范围内保持颜色平衡，并且还保持低灰度级下的显示器的亮度和色度的均匀性，因为显示器 变暗以降低亮度值。 因此，AM OLED显示器可以满足现有和未来的航空电子设备，驾驶舱和手持式军事设备显示应用所需的严格的颜色/调光规范。 本质上，所公开的OLED像素电路和调光方法使用OLED像素电流的脉冲宽度调制（PWM）来实现期望的显示亮度。 公开了两个示例电路，外部PW调制公共阴极电压或公共电源电压以调制OLED电流，以便实现期望的显示亮度。 公开了三个示例电路，其在像素电路中并入附加的晶体管开关以在帧时间期间调制OLED电流。 通过OLED电流的PWM，结合数据电压（或电流）调制，可以在保持色彩平衡和所涉及的显示器表面所需的亮度和色度均匀性的同时实现宽动态范围调光。