3D Eyewear Synchronization via Marker Frame Detection
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Solution Overview
Problem
Existing three-dimensional content presentation systems require specialized hardware and encoding, making it impossible to connect industry standard media players to standard televisions for three-dimensional viewing using three-dimensional eyewear.
Innovation Solution
A system that encodes digital video content with marker frames to indicate whether subsequent frames are for the left or right eye, using detection hardware to synchronize shutters in three-dimensional eyewear with these markers, allowing for three-dimensional viewing on standard content delivery mechanisms like internet, cable, or DVD players.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specialized hardware and encoding systems are used for three-dimensional content presentation, then three-dimensional viewing quality is improved, but device complexity and incompatibility with standard media players increase
Solution Approach 1:
The patent applies universality by enabling standard televisions and media players to display three-dimensional content without requiring specialized hardware. The system uses existing standard displays and incorporates three-dimensional content delivery through software encoding and synchronization mechanisms, allowing any standard TV to function as a three-dimensional display device when paired with compatible eyewear.
Solution Approach 2:
The patent introduces intermediary elements including marker frames embedded in video content and synchronization signals that mediate between the standard video signal and the shutter mechanism. These intermediaries enable the standard television to communicate timing information to the eyewear shutters, resolving the incompatibility between standard media players and three-dimensional viewing without requiring specialized hardware.
2Ease of operation
If industry standard media players and televisions are used, then ease of operation and compatibility are improved, but the ability to deliver synchronized three-dimensional content deteriorates
Solution Approach 1:
The patent applies preliminary action by embedding marker frames and synchronization information into the video content before it is displayed. These pre-placed temporal markers serve as advance signals that enable the shutter mechanism to anticipate and synchronize with the video content, ensuring proper three-dimensional presentation without requiring complex real-time processing or specialized player hardware.
Solution Approach 2:
The system implements feedback mechanisms where the television display provides timing information back to the shutter control system through detected marker frames. This feedback loop allows the shutter mechanism to adjust and synchronize its operation with the actual video content being displayed, maintaining reliable synchronization while using standard media players and televisions.
Data Source
AI summary
An application for a three-dimensional television system includes content encoded with left/right frame indicators at a pre-determined location on each frame. For example, during display frames meant for a first eye, the set of pixels contain a first pattern while during display of frames meant for the second eye, the set of pixels contain a second pattern. A detector interfaced to the screen of the television detects the left/right indication and provides synchronization to shutters of three-dimensional eyewear. The detector is positioned over the set of pixels and determines which pattern is displayed, generating a synchronization signal based upon the patterns. The synchronization signal is then transmitted to three-dimensional eyewear where it is used to control the shutters. In some embodiments, a phased-locked loop is provided within the three-dimensional eyewear to continue operation during periods when the transmission of the synchronization signal is blocked or otherwise interrupted.