Headset Deformation Sensing for Adaptive Usage Status Detection
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Solution Overview
Problem
Conventional headsets rely on infrared sensors for detecting usage status, which are prone to false detection and insensitive to various statuses other than wearing and non-wearing, leading to inefficiencies and power wastage.
Innovation Solution
A headset with a sensor circuit and dual processor system, where a secondary processor circuit determines usage status based on structural deformations, adaptively adjusts threshold values, and wakes a primary processor circuit for specific functions, enabling accurate detection and power-saving sleep modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared sensors are used for usage status detection, then the detection function is provided, but false detection occurs and the sensor is insensitive to various statuses other than wearing and non-wearing
Solution Approach 1:
The patent divides the detection function into two independent modules: a sensor circuit for collecting structural deformation data and a secondary processor circuit for analyzing the data and determining usage status. This segmentation allows each module to specialize in its function, improving both accuracy and reliability while reducing false detections.
Solution Approach 2:
The patent introduces a secondary processor circuit as an intermediary between the sensor circuit and the primary processor circuit. This intermediary processes sensor data, determines usage status, and makes intelligent decisions about waking the primary processor, thereby improving detection accuracy and reducing power consumption.
2Ease of operation
If the primary processor circuit remains active to handle control functions, then responsive control is achieved, but power consumption increases
Solution Approach 1:
The secondary processor circuit performs preliminary actions by continuously monitoring sensor data and determining usage status in advance. When the headset is not being worn or is in a non-active state, the secondary processor keeps the primary processor in sleep mode, thereby saving power while still being ready to wake it up when needed.
Solution Approach 2:
The system implements periodic monitoring where the secondary processor circuit wakes up at intervals to check sensor data and determine if the primary processor needs to be activated. This periodic action reduces power consumption compared to continuous operation while maintaining control responsiveness.
3Device complexity
If fixed threshold values are used for usage status determination, then the determination process is simple, but the system cannot adapt to different usage scenarios
Solution Approach 1:
The patent implements dynamic threshold adjustment where the secondary processor circuit adapts threshold values based on detected usage patterns and environmental conditions. This allows the system to accommodate different usage scenarios such as different head sizes, wearing positions, and usage contexts while maintaining relatively simple determination logic.
Solution Approach 2:
The system incorporates feedback mechanisms where the secondary processor circuit analyzes sensor data over time, learns from usage patterns, and adjusts threshold values accordingly. This feedback loop enables the system to adapt to different users and scenarios without significantly increasing complexity.
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
The system accurately detects multiple headset usage statuses, allowing flexible control functions while significantly reducing power consumption by dynamically adjusting thresholds and optimizing processor usage.
Implementation Method 1
The sensor circuit is arranged to operably generate sensor data based on structural deformations of the headset
Data Source
AI summary
A headset for audio play, comprising one or more sensor circuit and a control module. The control module comprises a secondary processor circuit and a primary processor circuit. The sensor circuit generates sensor data according to structural deformations of the headset. The secondary processor circuit receives the sensor data and calculates measured values related to the structural deformations of the headset. The primary processor circuit coupled to the secondary processor circuit controls an audio play operation in the headset, and enters a sleep mode when the audio play operation is not required. The secondary processor circuit determines a usage status of the headset according to the measured value and one or more threshold value. The secondary processor circuit wakes the primary processor circuit according to the usage status, and adaptively adjusts at least one threshold value according to the usage status.