Camera Signal Encoding Layout for Lighter AR Glasses
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Solution Overview
Problem
Existing augmented reality (AR) glasses face challenges due to the large volume and weight caused by numerous signal lines required to drive multiple cameras, complicating the implementation of flexible printed circuit boards and limiting portability.
Innovation Solution
The use of encoders and decoders to reduce the number of signal lines through encoding and decoding processes, allowing data transmission with fewer lines, specifically using a first interface with a first number of signal lines, a second interface with a second number less than the first, and a third interface with a third number greater than the second, thereby reducing the volume and weight of the AR glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cameras are mounted to provide augmented reality content in various environments, then the functionality and application scope are improved, but the volume and weight of signal lines increase
Solution Approach 1:
The patent combines multiple camera signal lines into a bundled structure where common signal lines (power, ground, clock) are shared across multiple cameras. This merging approach allows multiple cameras to share common signal paths, reducing the total number of individual signal lines and consequently decreasing the overall volume and weight of the wiring harness.
Solution Approach 2:
The patent implements universal signal lines that can serve multiple cameras simultaneously. The power supply lines, ground lines, and clock signals are designed as multi-functional conduits that can connect to any of the multiple cameras, eliminating the need for dedicated separate lines for each camera and reducing overall signal line quantity.
2Adaptability or versatility
If multiple cameras are mounted to provide augmented reality content in various environments, then the functionality and application scope are improved, but the volume occupied by signal lines increases
Solution Approach 1:
The patent combines multiple camera signal lines into a bundled structure where common signal lines (power, ground, clock) are shared across multiple cameras. This merging approach allows multiple cameras to share common signal paths, reducing the total number of individual signal lines and consequently decreasing the overall volume of the wiring harness.
Solution Approach 2:
The patent employs a nested wiring structure where signal lines for different cameras are organized in hierarchical bundles. Smaller camera-specific signal lines are nested within larger bundles that contain common signal lines, optimizing space utilization and reducing the overall volume occupied by the wiring system.
3Adaptability or versatility
If a large number of signal lines are mounted to drive multiple cameras, then the camera driving capability is improved, but the complexity of implementing flexible printed circuit boards increases
Solution Approach 1:
The patent merges multiple camera interfaces into a unified signal line architecture. By combining power, ground, clock, and data lines into shared bundles with standardized connection protocols, the system reduces the number of unique routing paths required on FPCBs, thereby simplifying the board design and manufacturing process.
Solution Approach 2:
The patent segments the signal line system into modular components: common signal line bundles that serve multiple cameras and camera-specific interface sections. This segmentation allows FPCBs to be designed with standardized connector regions for common lines and simplified individual connection points for camera-specific lines, reducing overall design complexity.
Data Source
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AI summary
An electronic device according to one embodiment of the present document may comprise: at least one camera; an encoder connected to the at least one camera through a first interface having a first number of signal lines; and a decoder connected to the encoder through a second interface having a second number of signal lines that is less than the first number. The encoder can provide, to the decoder through the second interface, data acquired from the at least one camera through the first interface and data encoded on the basis of identification information indicating each of the first number of signal lines.