Distance-Based Media Rendering for Mobile Docking Handover
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Solution Overview
Problem
Smartphone and tablet users face issues with audio and video rendering as they move away from docking stations, experiencing volume attenuation and diminished visual information due to fixed speaker and display locations.
Innovation Solution
A rendering device that dynamically adjusts audio and visual output based on the user's distance, using a distance monitoring circuit to vary volume, size, zoom, or resolution of media files, and redirects content to a mobile device when beyond a predetermined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If audio and video are output through fixed speakers and displays at the docking station, then the rendering quality is high when the user is close, but the perceived volume and visual information diminish as the user moves away
Solution Approach 1:
The system dynamically adjusts the rendering mode based on the user's distance from the docking station. When the user is within a threshold distance, audio and video are rendered through the docking station's speakers and displays. When the user exceeds the threshold distance, the system automatically switches to rendering through the mobile device's speakers and display, ensuring consistent quality regardless of user position.
Solution Approach 2:
The mobile device serves as an intermediary rendering device between the user and the docking station. When the user moves beyond the effective range of the docking station's output, the mobile device acts as a portable rendering endpoint, receiving media data from the docking station and outputting it through its own speakers and display to maintain rendering quality.
2Device complexity
If the rendering device uses fixed output locations for speakers and displays, then the system complexity is low, but the adaptability to user location changes is poor
Solution Approach 1:
The system implements dynamic adaptability by continuously monitoring the user's distance from the docking station and automatically switching between two rendering modes: docking station output for close proximity and mobile device output for distant proximity. This dynamic adjustment resolves the contradiction between simple fixed output and adaptive location flexibility.
Solution Approach 2:
The system achieves versatility by enabling the media playback function to operate effectively in two different locations (docking station and mobile device) based on user needs. The docking station serves both as a primary rendering device and as a control hub that can redirect output to the mobile device, providing multi-functional adaptability without significantly increasing overall system complexity.
3Reliability
If the system redirects audio and visual information to the mobile device when distance exceeds a threshold, then the consistent rendering quality is maintained, but the device complexity increases
Solution Approach 1:
The mobile device functions as an intermediary that receives media data from the docking station and outputs it through its own rendering components. This intermediary approach maintains rendering consistency across different user distances while keeping the docking station's architecture relatively simple, as it only needs to implement distance monitoring and output redirection logic.
Solution Approach 2:
The system implements feedback through distance monitoring that continuously tracks the user's position relative to the docking station. Based on this feedback, the system automatically adjusts the rendering configuration by switching between docking station and mobile device output, ensuring consistent quality while managing system complexity through automated control.
Data Source
AI summary
A rendering device is configured to dynamically vary how audio and visual information is rendered by a rendering device responsive to changes in distance between the rendering device and a mobile device carried by a user. As the user moves about, the distance between the rendering device and the mobile device carried by the user will vary. As the distance between the mobile device and the rendering device changes, the rendering system can dynamically adapt how the audio and visual information is rendered. For example, the rendering device can increase or decrease the volume of an audio output, depending on changes in the distance. Also, the rendering device can change how visual information is rendered on a display responsive to changes in distance. In some embodiments, when the distance between the mobile device and rendering device exceeds a predetermined distance, the audio and/or visual information may be sent to the mobile device.