Light-Based Localization for Digital Content Rendering
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Solution Overview
Problem
Conventional models for anchoring digital content in Computer-Generated Reality (CGR) systems face challenges such as privacy concerns and determining relevant content for users, as they rely on referential or algorithmic models that require complex computations and may not efficiently convey directionality and distance information.
Innovation Solution
The implementation of light-based unidirectional, line-of-sight, high bandwidth transmitters (broadcast tags) and steerable receivers that encode and decode digital information specific to a transmitter, allowing for simplified processing and reduced computational loads by conveying directionality and distance information through variations in wavelength, polarization, and modulation of light signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If referential models or algorithmic models are used to anchor digital content to reality, then digital content can be anchored to the real world, but privacy concerns arise and complex computations are required
Solution Approach 1:
The patent extracts the computational burden of determining directionality and distance information from the receiver device and relocates it to the transmitter device. The transmitter encodes this pre-computed localization data into the modulated light signal, allowing the receiver to simply decode and use the information without performing complex computations itself.
Solution Approach 2:
The patent introduces modulated light signals as an intermediary carrier that transports pre-computed localization information from the transmitter to the receiver. This light-based communication channel serves as a mediator that delivers directionality and distance data without requiring the receiver to perform complex environmental scanning or object recognition algorithms.
2Productivity
If conventional anchoring models are used, then digital content can be delivered to users, but it is difficult to determine what content is relevant to show a particular observer
Solution Approach 1:
The transmitter device performs preliminary actions by pre-computing directionality and distance information relative to its position and the digital content it wishes to deliver. This pre-computed localization data is encoded into the light signal before transmission, enabling the receiver to immediately determine content relevance without requiring complex real-time analysis of the environment or user context.
3Measurement precision
If complex algorithms are used to process digital content on the receiver side, then accurate localization can be achieved, but computational loads increase
Solution Approach 1:
The patent inverts the conventional approach by having the transmitter (rather than the receiver) perform the complex computational tasks of determining directionality and distance. The transmitter encodes these pre-computed results into the modulated light signal, allowing the receiver to achieve accurate localization by simply decoding the transmitted information without requiring substantial computational resources or energy consumption.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables seamless and efficient rendering of reality-anchored digital content, reducing computational loads and enhancing user privacy by allowing for precise control of content delivery without requiring complex algorithms, while maintaining data integrity and security.
Implementation Method 1
The signal includes information (e.g., wavelength, polarization, and/or modulation) that varies based on observation angle
Implementation Method 2
The signal includes information (e.g., wavelength, polarization, and/or modulation) that varies based on observation angle
Implementation Method 3
The receiver may estimate direction of the transmitter in the environment based at least in part on the received signal
Implementation Method 4
Intensity of the signal may be used to determine distance of the transmitter to the receiver
Data Source
AI summary
Methods and apparatus for conveying directionality and distance information from a transmitter to a receiver within the coordinate system of the transmitter. Conveying the directionality and distance information to the receiver may, for example, reduce computational loads at the receiver. The signal from the transmitter may include information for rendering digital content and information indicating the direction and distance of the transmitter, and the receiver may render the digital content using the direction and distance to reduce processing at the receiver. Alternatively, the signal may include pre-rendered content based on the direction to further reduce processing at the receiver.