Polarized Light Data Transmission for Orientation-Independent Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data transmission methods using light lack the ability to accurately decode data at large distances and are susceptible to perspective distortion, especially in systems where the orientation of the receiver relative to the transmitter is unknown.
Innovation Solution
A method and system for data transmission using light encoding, where each data element emits a specific data polarization, detected by a polarization unit, and decoded using a reference polarization to maintain accuracy regardless of receiver orientation, allowing for higher resolution and minimal distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional light transmission methods are used, then data can be transmitted, but decoding accuracy deteriorates at large distances and with unknown receiver orientation
Solution Approach 1:
The patent introduces polarization angle as an additional dimension for data encoding. Instead of relying solely on intensity or presence of light, each data element encodes information through its polarization angle relative to a reference element. This dimensional addition allows the receiver to decode data accurately regardless of distance or orientation, as polarization properties remain stable under these conditions.
Solution Approach 2:
The system changes the parameter used for data encoding from conventional intensity-based methods to polarization-based methods. By varying the polarization angle of light emitted by different data elements relative to a reference element, the system achieves orientation-independent and distance-robust data transmission. The evaluation unit decodes data by analyzing these polarization parameter differences.
2Reliability
If conventional light transmission methods are used, then data can be transmitted, but perspective distortion increases with unknown receiver orientation
Solution Approach 1:
The patent creates an equipotential system where all receiver orientations are equally valid for accurate decoding. By encoding data in the relative polarization angles between data elements and a reference element rather than in absolute spatial positions, the system eliminates the disadvantage of unknown receiver orientation. The evaluation unit can reliably decode data regardless of the receiver's angular position relative to the transmitter.
3Measurement precision
If polarization encoding is implemented, then decoding accuracy improves, but system complexity increases due to polarization detection requirements
Solution Approach 1:
The patent replaces complex mechanical or computational image processing systems with a more straightforward polarization detection approach. Instead of using multiple cameras or complex algorithms to compensate for perspective distortion, the system uses polarization filters and detectors that directly measure the polarization state of light. This substitution simplifies the overall system architecture while achieving superior decoding accuracy.
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
Enables accurate data transmission over larger distances with minimal perspective distortion by utilizing a system of data elements with unique polarizations and a reference element, ensuring decoding independence from receiver orientation.
Implementation Method 1
The data field has a plurality of data elements, each of which emits light with a specific data polarization. The data to be transmitted is encoded in the data polarizations of the light emitted by the data elements.
Implementation Method 2
The receiver has a polarization unit that detects the respective data polarization of the light emitted by the data elements.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a method for data transmission by means of light (20), wherein: an emitter (14) emits light (20) in which the data to be transmitted are encoded, and a receiver (12) receives light (20) emitted by the emitter (14); the emitter (14) comprises a data field (30) which has at least one data element (51); the at least one data element (51) emits light (20) having a specific data polarisation (Θ); the data to be transmitted are encoded in the data polarisation (Θ) of the light (20) emitted by the at least one data element (51); the receiver (12) comprises a polarisation unit (16) which recognizes the particular data polarisation (Θ) of the light (20) emitted by the at least one data element (51); and the receiver (12) comprises an evaluation unit (6) which decodes the data to be transmitted in the at least one data element (51) from the data polarisation (Θ) of the light (20) emitted by the at least one data element (51), which data polarisation was recognized by the polarisation unit (16). The invention also relates to a system (10) for data transmission by means of light (20), comprising an emitter (14) for emitting light (20) in which the data to be transmitted are encoded, and a receiver (12) for receiving light (20) emitted by the emitter (14), the system (10) being designed to carry out the method according to the invention.