Shared Circuit Architecture for Imaging and Pulse Detection
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Solution Overview
Problem
Existing imaging and pulse detection systems require distinct circuits for imaging and pulse detection, leading to larger pixel sizes and increased weight due to dual chip configurations, as they do not interoperate effectively.
Innovation Solution
A shared circuit architecture is implemented in each pixel, combining imaging and pulse detection circuits on a single chip, allowing for a single integrated circuit to handle both functions, with a shared optical detection input and output signals processed by a digital logic circuit for efficient pulse detection and image generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If distinct imaging circuits and pulse detection circuits are used with different architectures, then each function can be independently optimized, but the pixel size increases and weight increases due to dual chip configuration
Solution Approach 1:
The patent combines distinct imaging circuits and pulse detection circuits with different architectures into a single integrated pixel circuit. The circuit architecture includes a photodetector, imaging processing components, and pulse detection components all integrated on one chip, eliminating the need for dual chip configuration while maintaining both functions
Solution Approach 2:
The patent creates a universal pixel circuit that performs both imaging and pulse detection functions. The circuit architecture is designed to handle multiple operational modes, allowing the same hardware to switch between capturing image data and detecting laser pulses based on control signals
2Reliability
If distinct imaging circuits and pulse detection circuits are used with different architectures, then each function can be independently optimized, but the pixel size increases
Solution Approach 1:
The patent merges separate imaging and pulse detection circuits into a single integrated circuit structure. The photodetector and associated processing circuits are laid out in an integrated manner on one chip, reducing the total area occupied by combining what were previously separate components
Solution Approach 2:
The patent utilizes three-dimensional integration techniques and layered circuit architecture to pack both imaging and pulse detection functions into a compact footprint. By stacking circuit layers and using vertical interconnects, the design reduces the planar area required while maintaining functional separation
3Adaptability or versatility
If two distinct circuits are utilized within each pixel, then imaging and pulse detection functions are maintained, but device complexity increases
Solution Approach 1:
The patent implements a universal circuit architecture that performs both imaging and pulse detection through shared components. The photodetector, amplifier, and control logic are designed to operate in multiple modes, reducing the need for completely separate circuit paths while maintaining both functions
Solution Approach 2:
The patent employs dynamic circuit configuration where components can switch between different operational states based on control signals. The circuit architecture allows dynamic reconfiguration of signal paths, enabling the same hardware to adapt between imaging mode and pulse detection mode, thereby reducing overall complexity
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 solution enables a compact, lightweight pixel array with reduced processing requirements for the controller, as both imaging and pulse detection functions are integrated on a single chip, improving interoperability and reducing the overall size and weight of the pixel array.
Implementation Method 1
an optical detection device in the shared portion that detects a light input
Data Source
AI summary
An imaging and pulse detection array includes: a plurality of pixels connected to a controller, the controller being configured to generate an image based on an image signal originating from each pixel in the plurality of pixels and configured to detect a pulse on at least one of the pixels in the plurality of pixels, and each of the pixels in the plurality of pixels including an imaging circuit and a pulse detection circuit, the imaging circuit and the pulse detection circuit including a shared circuit architecture, and wherein the imaging circuit and the pulse detection circuit include a shared portion.