Dynamic Bandwidth Selection in Signal Measuring Devices
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Solution Overview
Problem
Existing signal measuring systems are limited by fixed bandwidths, which restrict their ability to efficiently test and analyze signals across various frequency bands, leading to increased costs and reduced functionality.
Innovation Solution
A measuring device and method that dynamically select channel bandwidths by utilizing multiple domains of measurement (time, frequency, or protocol decode) with a controller to set distinct bandwidths for each domain, allowing for flexible analysis and cost-effective oscilloscope configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the bandwidth is exclusively narrowed for the most interesting portion, then the measurement precision for that portion is improved, but the adaptability and testing possibilities are considerably limited
Solution Approach 1:
The patent divides the bandwidth into multiple segments or portions, allowing different bandwidth settings for different measurement domains. The measuring device can selectively narrow the bandwidth for frequency-domain measurements while maintaining wider bandwidth for time-domain measurements, thus resolving the contradiction between precision and versatility.
Solution Approach 2:
The patent implements dynamic bandwidth selection where the bandwidth setting changes based on the measurement domain and requirements. The system can dynamically adjust bandwidth parameters to optimize precision for specific tasks while maintaining overall adaptability across different measurement scenarios.
2Adaptability or versatility
If the entire bandwidth is provided for each domain, then the adaptability is improved, but the device complexity and cost increase
Solution Approach 1:
The patent applies local quality by providing different bandwidth characteristics to different domains based on their specific requirements. Instead of uniformly providing full bandwidth to all domains, the system allocates bandwidth locally to each domain according to its measurement needs, reducing overall device complexity and cost.
Solution Approach 2:
The patent implements partial action by providing only the necessary bandwidth to each domain rather than full bandwidth to all domains. This selective provision achieves sufficient adaptability for each domain while avoiding the excessive complexity and cost of providing complete bandwidth coverage everywhere.
3Productivity
If a higher bandwidth is provided for all domains, then the measurement capability is improved, but the cost of the measuring device increases
Solution Approach 1:
The patent segments the bandwidth allocation across different domains, providing higher bandwidth only where necessary for specific measurement capabilities. This segmented approach enables improved measurement capability for critical domains while keeping the overall device cost manageable by avoiding universal high-bandwidth provision.
Solution Approach 2:
The patent utilizes parameter changes to adjust bandwidth settings dynamically based on measurement requirements. By changing bandwidth parameters selectively rather than maintaining fixed high bandwidth throughout, the system achieves improved measurement capability when needed while controlling device cost through parameter optimization.
Data Source
AI summary
A measuring device measures an input signal. The measuring device comprises at least two domains of measurement each for analyzing the signal in its corresponding manner, a selector for selecting a first domain of measurement or a second domain of measurement out of the at least two domains of measurement. A controller is in communication with the selector. The controller is configured to set a first bandwidth for the first domain of measurement and a second bandwidth for the second domain of measurement.