Photosensor Chip Adaptability via Control Data Format Selection
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Solution Overview
Problem
High-performance image sensor arrays require large silicon structures for full-width scanning, but existing designs struggle to adapt to different control data formats, limiting their versatility in larger systems like digital copiers and cameras.
Innovation Solution
An imaging apparatus with a subset of photosensors that can operate using either a control data format, where one subsystem manages signal duration for integration periods and another subsystem manages changes in integration state, allowing selection between these formats through a multiplexer and selection lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single chip design is used for full-width scanning, then manufacturing complexity is reduced, but adaptability to different control data formats deteriorates
Solution Approach 1:
The patent implements dynamic configurability by providing multiple operational modes (full-array mode and subset mode) that can be selected based on the control data format requirements. The system dynamically adjusts which photosensors are active and how they are controlled, allowing a single chip design to adapt to different format requirements without requiring multiple specialized chip designs.
Solution Approach 2:
The patent changes operational parameters including the integration period duration, the subset of active photosensors, and the control signal interpretation mode. By varying these parameters, the same physical chip can operate in different modes compatible with different control data formats, resolving the contradiction between standardized manufacturing and format adaptability.
2Stability of the object's composition
If control signals are held in predetermined states for integration periods, then signal stability is improved, but control flexibility deteriorates
Solution Approach 1:
The system dynamically adjusts the duration of predetermined signal states based on the selected operational mode. In full-array mode, signals are held for standard integration periods, while in subset mode, the integration period duration is dynamically modified to accommodate different control data format requirements, maintaining both stability and flexibility.
Solution Approach 2:
The patent modifies the time parameter of signal states by adjusting integration period durations according to the operational mode and control data format. This allows the system to maintain signal stability through predetermined states while achieving control flexibility through parameter variation.
3Measurement precision
If photosensor arrays are configured for specific control formats, then control precision is improved, but device versatility deteriorates
Solution Approach 1:
The patent implements multi-functionality by designing a single photosensor chip that can operate in multiple modes (full-array mode and subset mode) and support different control data formats. The chip maintains precise control in each mode through mode-specific processing paths while providing universal adaptability across different system requirements.
Solution Approach 2:
The patent segments the photosensor array into selectable subsets that can be independently controlled. This segmentation allows the system to maintain precise control over active photosensors while adapting to different control formats by activating only the necessary subsets, thereby preserving both control precision and versatility.
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 the use of a single chip design in various systems by accommodating different control data formats, enhancing adaptability and flexibility in imaging applications, such as digital copiers and cameras, and allowing for adjustable exposure times across subsets of photosensors.
Implementation Method 1
an array of photosensors of a width comparable to the width of a page being scanned
Data Source
AI summary
An imaging apparatus, such as used in a digital camera or scanner, includes at least one photosensor chip. The chip includes subsystems thereon that control the integration periods of the photosensors according to different control data formats. A selector is used to adapt the chip to accept control data of a selected format consistent with a larger apparatus or system.