环境传感器
By combining an environmental sensor circuit with a capacitive proximity sensor and a Hall effect probe, the problems of environmental changes and noise interference in portable devices are solved, achieving higher accuracy and power optimization.
CN115882848BActive Publication Date: 2026-07-17SEMTECH CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SEMTECH CORP
- Filing Date
- 2022-09-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The environmental sensors in existing portable devices are unable to effectively distinguish between environmental changes and noise interference, leading to malfunctions and wasted power.
Method used
Combining a capacitive proximity sensor and a Hall effect probe, noise and drift are suppressed by an analog-to-digital converter and a digital processor, providing digital output of magnetic field and proximity signals, configured to wake up the host system or adjust device behavior.
Benefits of technology
It improves the accuracy of environmental sensors, reduces malfunctions, optimizes device power consumption, and enhances the user experience.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115882848B_ABST
Abstract
本发明涉及一种用于便携式连接的无线设备的环境传感器电路，该电路包括电容式接近传感器，其被配置成通过感测与环境集成电路电连接的电极的电容变化来确定用户是否以其本体接近便携式连接的无线设备，磁场探头，其提供与磁场强度成比例的信号，其中，集成电路具有模拟 / 数字转换器，其被配置成产生表示电极的电容的接近数字值和表示磁场强度的磁场数字值，集成电路还包括数字处理器，其被配置用于抑制来自接近数字值和来自磁场数字值的不想要的噪声和漂移分量。
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