Abstract: A system includes a light source to generate a source light, a spatial modulator to receive the source light. A display element to receive the source light from the spatial modulator and to direct the source light towards an eye, and a controller. The controller is to receive initial image data for an image to be displayed, the image comprising a plurality of pixels having a plurality of brightness levels, determine an image power based on the brightness levels, and determine an excess power status based on a comparison of the image power to a specified power threshold. Responsive to the excess power status indicating the image power is to exceed the specified power threshold, the controller is to reduce the brightness levels to generate updated image data, and control the light source and the spatial modulator to project the image using the updated image data.

Abstract: There is provided a method of operating a wearable heads-up display (WHUD). The WHUD may include a light source, a spatial modulator, and a display optic. The method may include generating, by the light source, an output light to form an image viewable by a user of the WHUD. The method may also include receiving a position of a pupil of the user relative to an eyebox of the WHUD, and obtaining an image correction map based on the position of the pupil. Moreover, the method may include adjusting the output light to form an adjusted output light. The adjusted output light may be adjusted based on the image correction map to reduce at least one of an intensity non-uniformity and a color balance non-uniformity of the image. The method may also include directing, by the display optic, the adjusted output light into a field of view of the user.

Abstract: There is provided a method of operating a wearable heads-up display (WHUD). The WHUD may include a light source, a spatial modulator, and a display optic. The method may include generating, by the light source, an output light to form an image viewable by a user of the WHUD. The method may also include receiving a position of a pupil of the user relative to an eyebox of the WHUD, and obtaining an image correction map based on the position of the pupil. Moreover, the method may include adjusting the output light to form an adjusted output light. The adjusted output light may be adjusted based on the image correction map to reduce at least one of an intensity non-uniformity and a color balance non-uniformity of the image. The method may also include directing, by the display optic, the adjusted output light into a field of view of the user.

Abstract: A system includes a light source to generate a source light, a spatial modulator to receive the source light. a display element to receive the source light from the spatial modulator and to direct the source light towards an eye, and a controller. The controller is to receive initial image data for an image to be displayed, the image comprising a plurality of pixels having a plurality of brightness levels, determine an image power based on the brightness levels, and determine an excess power status based on a comparison of the image power to a specified power threshold. Responsive to the excess power status indicating the image power is to exceed the specified power threshold, the controller is to reduce the brightness levels to generate updated image data, and control the light source and the spatial modulator to project the image using the updated image data.

Abstract: There is provided a method of operating a wearable heads-up display (WHUD). The WHUD may include a light source, a spatial modulator, and a display optic. The method may include generating, by the light source, an output light to form an image viewable by a user of the WHUD. The method may also include receiving a position of a pupil of the user relative to an eyebox of the WHUD, and obtaining an image correction map based on the position of the pupil. Moreover, the method may include adjusting the output light to form an adjusted output light. The adjusted output light may be adjusted based on the image correction map to reduce at least one of an intensity non-uniformity and a color balance non-uniformity of the image. The method may also include directing, by the display optic, the adjusted output light into a field of view of the user.

Abstract: A method of operating a wearable heads-up display that in use is worn on a head of a user includes generating an infrared light, scanning the infrared light over an eye of the user, detecting reflections of infrared light from the eye of the user, and extracting test biometric identification data from at least a portion of the detected reflections and corresponding scan orientations. A similarity measure between the test biometric identification data and reference biometric identification data associated with the wearable heads-up display is determined. The user is authenticated based on the similarity measure.

Abstract: A method of operating a wearable heads-up display that in use is worn on a head of a subject user includes projecting light to an eye of the subject user and detecting an ambient light condition in an environment of the wearable heads-up display by an ambient light sensor. The method includes measuring a pupil size of the eye of the subject user and determining a target luminous flux based on an output of the ambient light sensor and the pupil size. A current luminous flux of the light projected to the eye of the subject user is adjusted based on the target luminous flux.

Abstract: There is provided a method of operating a wearable heads-up display (WHUD). The WHUD may include a light source, a spatial modulator, and a display optic. The method may include generating, by the light source, an output light to form an image viewable by a user of the WHUD. The method may also include receiving a position of a pupil of the user relative to an eyebox of the WHUD, and obtaining an image correction map based on the position of the pupil. Moreover, the method may include adjusting the output light to form an adjusted output light. The adjusted output light may be adjusted based on the image correction map to reduce at least one of an intensity non-uniformity and a color balance non-uniformity of the image. The method may also include directing, by the display optic, the adjusted output light into a field of view of the user.

Abstract: A method of operating a wearable heads-up display that in use is worn on a head of a subject user includes projecting light to an eye of the subject user and detecting an ambient light condition in an environment of the wearable heads-up display by an ambient light sensor. The method includes measuring a pupil size of the eye of the subject user and determining a target luminous flux based on an output of the ambient light sensor and the pupil size. A current luminous flux of the light projected to the eye of the subject user is adjusted based on the target luminous flux.

Abstract: A method of operating a wearable heads-up display that in use is worn on a head of a user includes generating an infrared light, scanning the infrared light over an eye of the user, detecting reflections of infrared light from the eye of the user, and extracting test biometric identification data from at least a portion of the detected reflections and corresponding scan orientations. A similarity measure between the test biometric identification data and reference biometric identification data associated with the wearable heads-up display is determined. The user is authenticated based on the similarity measure.

Abstract: The disclosure provides a system and method for adjusting a backlight level for an image being displayed on an electronic device. The system comprises: a display for displaying an image to be backlit; memory storing a numeric representation of the image on a pixel-by-pixel basis; and a backlight adjustment module to calculate a pixel-by-pixel, running average of an intensity of the image using the numeric representation and to determine a backlight level for the image using the running average, the running average being calculated according to an equation that calculates a new average using a previous average and a current pixel intensity value to avoid an overflow condition when calculating the running average.

Abstract: A system and method is provided for use in a mobile electronic device for adjusting brightness of a display on the mobile electronic device. The method comprises collecting a plurality of light sensor samples using an ambient light sensor of the mobile electronic device; calculating a representative value of the plurality of light sensor samples; comparing the representative value to at least one brightness threshold value; determining if a predetermined application is active on the mobile electronic device; determining whether to adjust the brightness of the display based on the comparison and based on whether predetermined application is active on the device; and adjusting the brightness of the display.

Abstract: An input device includes an array of keys and an illumination system. Each key comprises a key face that is configured for transmission of light. The illumination system includes a light guide disposed below the keys, a plurality of lamps mounted to the light guide, and a lamp controller electrically coupled to the lamps. The light guide is configured to illuminate the key faces via the lamps. The lamp controller is configured to repeatedly illuminate the lamps each for a respective on-time interval of a common illumination period. The location of the lamps and the illumination period and each said on-time interval are selected for the visual appearance of continuous substantially uniform illumination of the array of keys.

Abstract: The disclosure provides a system and method for adjusting a backlight level for an image being displayed on an electronic device. The system comprises: a display for displaying an image to be backlit; memory storing a numeric representation of the image on a pixel-by-pixel basis; and a backlight adjustment module to calculate a pixel-by-pixel, running average of an intensity of the image using the numeric representation and to determine a backlight level for the image using the running average, the running average being calculated according to an equation that calculates a new average using a previous average and a current pixel intensity value to avoid an overflow condition when calculating the running average.

Abstract: The invention provides a system and method for calculating a backlight level for an image being displayed on an electronic device. The system comprises: a backlight adjustment module to calculate an intensity value of an image for display on the electronic device; a display for displaying the image; and a backlight system to provide a backlight for the display. The backlight system is responsive to control signals generated by the backlight adjustment module. In the system, the intensity value represents an average intensity of the image.

Abstract: A system and method is provided for use in a mobile electronic device for adjusting brightness of a display on the mobile electronic device. The method comprises collecting a plurality of light sensor samples using an ambient light sensor of the mobile electronic device; calculating a representative value of the plurality of light sensor samples; comparing the representative value to at least one brightness threshold value; determining if a predetermined application is active on the mobile electronic device; determining whether to adjust the brightness of the display based on the comparison and based on whether predetermined application is active on the device; and adjusting the brightness of the display.

Abstract: The invention provides a system and method for calculating a backlight level for an image being displayed on an electronic device. The system comprises: a backlight adjustment module to calculate an intensity value of an image for display on the electronic device; a display for displaying the image; and a backlight system to provide a backlight for the display. The backlight system is responsive to control signals generated by the backlight adjustment module. In the system, the intensity value represents an average intensity of the image.