Orientation Compensation for Electronic Device Audio and Display
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Solution Overview
Problem
Electronic devices such as cellular phones and other equipment experience performance variations in audio and visual components due to changes in orientation relative to the user, leading to undesired artifacts.
Innovation Solution
Incorporating sensor circuitry, including motion sensors like accelerometers and gyroscopes, and cameras to monitor and compensate for orientation changes, allowing control circuitry to dynamically adjust audio and display settings to maintain consistent performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device orientation changes relative to the user, then the natural performance of audio and visual components varies, but this creates undesired artifacts and degrades performance
Solution Approach 1:
The system uses motion sensors (accelerometers, gyroscopes, compasses) to continuously monitor device orientation and feeds this information back to control circuitry. The control circuitry dynamically adjusts audio output gains and display pixel values based on the detected orientation, creating a closed-loop feedback system that compensates for orientation-induced performance variations and maintains consistent user experience.
Solution Approach 2:
The system changes operational parameters (audio channel output gains, audio channel input gains, and pixel values) based on device orientation. By dynamically adjusting these parameters in response to orientation changes, the system compensates for performance variations and maintains consistent audio and visual output quality across different viewing and listening angles.
2Adaptability or versatility
If motion sensors and cameras are added to monitor orientation, then orientation compensation is enabled, but device complexity increases
Solution Approach 1:
The system integrates multiple sensor types (accelerometers, gyroscopes, compasses) and a camera into a unified orientation monitoring system. These components work together to provide comprehensive orientation data that serves multiple functions: tracking device movement, determining viewing angles, and enabling dynamic compensation for both audio and visual components, thereby maximizing the utility of the added hardware.
Solution Approach 2:
The device uses its own built-in sensors and camera to monitor its orientation and automatically adjusts its audio and visual output without requiring external calibration or user intervention. The system self-calibrates by capturing images of the user's eyes and processing them to determine accurate orientation information, enabling continuous automatic compensation.
Data Source
AI summary
An electronic device may have components that experience performance variations as the device changes orientation relative to a user. Changes in the orientation of the device relative to the user can be monitored using a motion sensor. A camera may be used to periodically capture images of a user's eyes. By processing the images to produce accurate orientation information reflecting the position of the user's eyes relative to the device, the orientation of the device tracked by the motion sensor can be periodically updated. The components may include audio components such as microphones and speakers and may include a display with an array of pixels for displaying images. Control circuitry in the electronic device may modify pixel values for the pixels in the array to compensate for angle-of-view-dependent pixel appearance variations based on based on the orientation information from the motion sensor and the camera.