Single-Chip Image Sensor Output Switching for Compact Imaging
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Solution Overview
Problem
Conventional imaging devices with chip connections using bumps result in increased thickness and size, and there is a need to output user-required information, including captured images and metadata, efficiently.
Innovation Solution
A single-chip imaging device with a two-dimensionally arranged pixel imaging unit, signal processing unit, and output interface that selectively outputs signal processing results and captured images, enabling compact size and efficient information transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If chips are connected using bumps to construct an imaging device, then multiple functions (sensor, memory, DSP) can be integrated, but the thickness and overall size of the device increases
Solution Approach 1:
The patent merges the sensor chip and signal processing unit into a single integrated chip structure. The signal processing unit is directly formed on the sensor chip, eliminating the need for separate chips connected by bumps. This combining approach achieves functional integration (sensor + processing) while avoiding the thickness increase that would result from stacking multiple chips with bump connections.
Solution Approach 2:
The imaging device is designed with multi-functionality by incorporating both image capture and signal processing capabilities within a single chip. The device can selectively output either captured images or signal processing results based on external control signals, providing versatile functionality without requiring multiple separate components that would increase device thickness.
2Adaptability or versatility
If both captured images and signal processing results are always output, then user information requirements are met, but data transmission load and bandwidth requirements increase
Solution Approach 1:
The patent implements dynamic output control where the imaging device can switch between outputting captured images and signal processing results based on external control signals. This dynamic adaptability allows the system to adjust its output according to real-time user requirements, providing information flexibility while minimizing unnecessary data transmission by only outputting what is currently needed.
Solution Approach 2:
The output mode of the device is changed as a controllable parameter. By receiving external control signals, the device changes its output parameter between two states: outputting captured images or outputting signal processing results. This parameter change approach enables flexible adaptation to different user information requirements while controlling data transmission volume by selecting the appropriate output type.
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
The solution allows for the construction of an imaging device that outputs required information with a small size, reducing the device's size and enhancing efficiency in data output, while minimizing external signal processing loads.
Implementation Method 1
an imaging unit in which a plurality of pixels is arranged two-dimensionally and that captures an image
Data Source
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AI summary
The present technology relates to an imaging device and an electronic device that enable construction of an imaging device that outputs information required by a user with a small size. A single-chip imaging device includes: an imaging unit in which a plurality of pixels is arranged two-dimensionally and that captures an image; a signal processing unit that performs signal processing using a captured image output from the imaging unit; an output I/F that outputs a signal processing result of the signal processing and the captured image to an outside; and an output control unit that performs output control of selectively outputting the signal processing result of the signal processing and the captured image from the output I/F to the outside. The present technology can be applied to, for example, an imaging device that captures an image.