Loudspeaker Sensor-Based Placement Detection
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Solution Overview
Problem
Traditional loudspeaker systems require manual adjustment or complete recalibration whenever they are moved, tilted, or rotated, leading to a time-consuming and inefficient process for ensuring accurate sound direction to a listener.
Innovation Solution
A system and method that utilizes integrated sensors such as cameras, accelerometers, and other devices to detect movement and changes in the loudspeaker's environment, allowing for adjustments to drive parameters without full recalibration for minor movements and triggering recalibration for significant changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment or complete recalibration is performed whenever the loudspeaker is moved, then accurate sound direction is maintained, but the process becomes time-consuming and inefficient
Solution Approach 1:
The patent replaces manual mechanical adjustment with automated sensor-based detection and electronic parameter modification. Sensors (accelerometers, gyroscopes, cameras) automatically detect loudspeaker movement, and a processor automatically adjusts drive parameters without requiring manual intervention, thus maintaining accuracy while eliminating time loss.
Solution Approach 2:
The loudspeaker system performs self-calibration by using its own integrated sensors to detect its position and orientation changes. The system automatically compensates for movement by adjusting its drive parameters based on sensor data, enabling it to maintain accurate sound direction without external manual recalibration.
2Productivity
If sensors and automated detection systems are integrated into the loudspeaker, then the need for manual recalibration is reduced, but the device complexity increases
Solution Approach 1:
The loudspeaker system integrates multiple functions into a single device: it combines audio output with motion sensing (accelerometers, gyroscopes), visual detection (cameras), and automated parameter adjustment. This multi-functionality allows the system to detect its own movement and self-correct, improving productivity without requiring separate external calibration devices.
Solution Approach 2:
The patent uses sensors as intermediary devices that mediate between the physical movement of the loudspeaker and the electronic control system. The sensors convert physical movement into electrical signals that the processor can interpret and act upon, enabling automated adjustment without direct human intervention while managing complexity through standardized sensing interfaces.
3Measurement precision
If complete recalibration is performed for any movement, then sound accuracy is maintained, but the user experience deteriorates due to repeated manual intervention
Solution Approach 1:
Instead of performing complete recalibration for every movement, the system applies partial adjustment by modifying only the specific drive parameters that changed due to movement. The processor analyzes sensor data to determine the extent of movement and applies minimal necessary corrections, maintaining sound accuracy while avoiding unnecessary full recalibration procedures that would degrade user experience.
Data Source
AI summary
A system and method is described for determining whether a loudspeaker device has relocated, tilted, rotated, or changed environment such that one or more parameters for driving the loudspeaker may be modified and/or a complete reconfiguration of the loudspeaker system may be performed. In one embodiment, the system may include a set of sensors. The sensors provide readings that are analyzed to determine 1) whether the loudspeaker has moved since a previous analysis and/or 2) a distance of movement and/or a degree change in orientation of the loudspeaker since the previous analysis. Upon determining the level of movement is below a threshold value, the system adjusts previous parameters used to drive one or more of the loudspeakers. By adjusting previous parameters instead of performing a complete recalibration, the system provides a more efficient technique for ensuring that the loudspeakers continue to produce accurate sound for the listener.