Configurable Signal Processing Circuit for Projectors
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Solution Overview
Problem
Existing signal processing systems for projection-type display apparatuses require different processing capabilities based on the model and resolution of liquid crystal panels, leading to increased costs due to the need for varying configurations to meet required processing capabilities.
Innovation Solution
A signal processing circuit configuration that includes a front stage and a rear stage signal processing circuit, allowing for switching between different processing states to meet required processing capabilities, with the option to use a single circuit or multiple circuits, and connecting both stages to memory for data storage and processing, enabling flexible configuration based on needed processing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different signal processing circuits with different processing capabilities are used for different models and resolutions, then the required processing capability is met, but the cost increases
Solution Approach 1:
The patent applies universality by designing a signal processing circuit that can function in multiple modes (single-circuit mode and multi-circuit mode) to satisfy different processing capability requirements. The same circuit configuration is used, but its operational mode varies depending on the model and resolution requirements, eliminating the need to manufacture different circuit configurations for different models.
Solution Approach 2:
The patent applies dynamics by making the signal processing system configurable and switchable between different operational states. The circuit can dynamically adjust its processing capability through configuration settings, allowing a single circuit design to adapt to varying processing requirements without physical changes to the hardware.
2Ease of manufacture
If a single signal processing circuit is used, then the cost is reduced, but the processing capability is insufficient for high-resolution models
Solution Approach 1:
The patent applies segmentation by dividing the signal processing function into front stage and rear stage processing circuits. This segmentation allows the system to process signals in multiple passes, with each stage handling specific processing tasks. The segmented approach enables a single circuit to achieve high processing capability through multi-stage processing rather than requiring a single complex high-capability circuit.
Solution Approach 2:
The patent introduces an intermediary mechanism through the configurable circuit architecture that mediates between the single-circuit simplicity and multi-circuit processing power. The circuit can be configured to operate as a single unit or distribute processing across multiple functional blocks, with memory serving as an intermediary for data storage and transfer between processing stages.
3Device complexity
If the same circuit configuration is used for all models, then the manufacturing complexity is reduced, but the processing capability cannot be adjusted for different resolutions
Solution Approach 1:
The patent applies dynamics by implementing a configurable circuit architecture where the same physical circuit can be dynamically configured to provide different processing capabilities. The circuit includes control logic that can adjust its operational mode based on the required processing capability, allowing a single static hardware configuration to provide dynamic adaptability to different model requirements.
Data Source
AI summary
An image processing circuit includes a front stage signal processing circuit that performs processing of input data and outputs the data and a rear stage signal processing circuit that performs processing which is to be performed on the data obtained after processing of the input data performed by the front stage signal processing circuit and outputs the data. The image processing circuit is configured to be switchable to one state of a first state that performs processing of the input data using the front stage signal processing circuit, subsequently performs processing of the data using the rear stage signal processing circuit, and outputs the data, a second state that performs processing of the input data using the front stage signal processing circuit and outputs the data, and a third state that performs processing of the input data using the rear stage signal processing circuit and outputs the data.