Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertise to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: A system and method for focusing a camera is disclosed. The system may generate a proxy image that is blurred to an extent that is correlated to a degree to which a camera is out of focus. A user may be asked to adjust a focusing mechanism to attempt to bring the proxy image into focus. This allows the camera to be focused without the user needing to see an image from the camera. This can be used, for example, to focus an infrared camera. The infrared camera could be a tracking camera in a device such as a head mounted display device.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image by circuitry within the display.

Abstract: Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image by circuitry within the display.

Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertise to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.

Abstract: Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image by circuitry within the display.

Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertise to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.

Abstract: A camera module is disclosed including an image sensor having an associated optical filter configured to receive a first set of one or more wavelengths of light, and a housing around the image sensor. The housing has an associated optical filter configured to allow a second set of one or more wavelengths of light to pass through the housing and to block the first set of one or more wavelengths of light from passing through the housing. In examples, the second set of one or more wavelengths of light may be light in the visible range of wavelengths, and the housing may be transparent.

Abstract: Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image by circuitry within the display.

Abstract: Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image by circuitry within the display.

Abstract: A camera module is disclosed including an image sensor having an associated optical filter configured to receive a first set of one or more wavelengths of light, and a housing around the image sensor. The housing has an associated optical filter configured to allow a second set of one or more wavelengths of light to pass through the housing and to block the first set of one or more wavelengths of light from passing through the housing. In examples, the second set of one or more wavelengths of light may be light in the visible range of wavelengths, and the housing may be transparent.

Abstract: A system and method for focusing a camera is disclosed. The system may generate a proxy image that is blurred to an extent that is correlated to a degree to which a camera is out of focus. A user may be asked to adjust a focusing mechanism to attempt to bring the proxy image into focus. This allows the camera to be focused without the user needing to see an image from the camera. This can be used, for example, to focus an infrared camera. The infrared camera could be a tracking camera in a device such as a head mounted display device.

Abstract: A head-mounted display (HMD) device is provided with reduced motion blur by reducing row duty cycle for an organic light-emitting diode (LED) panel as a function of a detected movement of a user's head. Further, a panel duty cycle of the panel is increased in concert with the decrease in the row duty cycle to maintain a constant brightness. The technique is applicable, e.g., to scenarios in which an augmented reality image is displayed in a specific location in world coordinates. A sensor such as an accelerometer or gyroscope can be used to obtain an angular velocity of a user's head. The angular velocity indicates a number of pixels subtended in a frame period according to an angular resolution of the LED panel. The duty cycles can be set, e.g., once per frame, based on the angular velocity or the number of pixels subtended in a frame period.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: Compact sub-assemblies of flexible circuits and drivers are provided. The sub-assemblies can occupy less space in an electronic device than conventional sub-assemblies. In one or more embodiments of the present invention, the flexible circuits can be attached to or wires can be disposed on portions of the substrate that previously were unoccupied in conventional sub-assemblies. In one or more embodiments, the sub-assemblies of the present invention also can have wires disposed underneath the driver or vary the width of the wires. In one or more embodiments, the sub-assemblies of the present invention also can have composite wires that occupy less space than wires of conventional sub-assemblies, while still maintaining similar energy flux.

Abstract: Electronic devices and accessories are provided that may communicate over wired communications paths. The electronic devices may be portable electronic devices such as cellular telephones or media players and may have audio connectors such as 3.5 mm audio jacks. The accessories may be headsets or other equipment having mating 3.5 mm audio plugs and speakers for playing audio. Microphones may be included in an accessory to gather voice signals and noise cancellation signals. Analog-to-digital converter circuitry in the accessory may digitize the microphone signals. Digital voice signals and voice noise cancellation signals can be transmitted over the communications path and processed by audio digital signal processor circuitry in an electronic device. Digital-to-analog converter circuitry in the accessory may convert digital audio signals to analog speaker signals.

Abstract: A media processing system and device with improved power usage characteristics, improved audio functionality and improved media security is provided. Embodiments of the media processing system include an audio processing subsystem that operates independently of the host processor for long periods of time, allowing the host processor to enter a low power state while the audio data is being processed. Other aspects of the media processing system provide for enhanced audio effects such as mixing stored audio samples into real-time telephone audio. Still other aspects of the media processing system provide for improved media security due to the isolation of decrypted audio data from the host processor.