Modular Noise Canceling Apparatus Scalability
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Solution Overview
Problem
Existing noise canceling systems face inefficiencies and scalability issues due to the complexity of multi-input and multi-output configurations, making it difficult to adjust the scale of noise canceling processing effectively.
Innovation Solution
A signal processing apparatus and method that connects multiple noise canceling processing units via a dedicated bus, allowing for daisy-chain configuration and data transfer to expand the processing range and improve noise canceling performance, using both feedforward and feedback systems in a modular, scalable manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-inputs and multi-outputs configuration is used to improve noise reduction performance, then noise reduction performance is improved, but system complexity increases
Solution Approach 1:
The patent divides the multi-input multi-output noise canceling system into multiple independent signal processing apparatuses, where each apparatus handles a subset of inputs and outputs. This segmentation allows the complex MIMO problem to be broken down into smaller, more manageable sub-problems while maintaining overall noise reduction performance through coordinated operation of the divided units.
2Area of stationary object
If multi-inputs and multi-outputs configuration is used to expand processing range, then noise reduction coverage is improved, but scale of system becomes large
Solution Approach 1:
The patent segments the large-scale noise canceling system into multiple modular signal processing apparatuses that can be distributed across different locations. Each apparatus processes local inputs and outputs, thereby expanding the overall processing range without requiring a single large complex system. The modular structure allows incremental expansion of coverage area.
Solution Approach 2:
The patent transitions from a centralized single-system architecture to a distributed multi-apparatus architecture, adding the dimension of spatial distribution. This allows the system to cover larger areas by placing processing units at different locations rather than concentrating all processing in one location, thereby expanding processing range without proportionally increasing system complexity.
3Device complexity
If single noise canceling system is used to simplify configuration, then system complexity is reduced, but efficiency of noise canceling decreases
Solution Approach 1:
The patent segments the noise canceling function across multiple independent apparatuses, each handling specific input-output pairs. This segmentation improves noise canceling efficiency by allowing parallel processing of different signal streams and reducing computational burden on each individual unit, while maintaining configuration simplicity through standardized modular interfaces.
Data Source
AI summary
Provided is a signal processing apparatus of a plurality of signal processing apparatuses that includes a noise canceling processing unit capable of connecting one or more input portions and one or more output portions, and performs a noise canceling processing. Signal processing apparatuses of the plurality of signal processing apparatuses are connected to one another.