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Patent drawing for Proximity detection system
US 8,164,354 B2
Electronic circuits US 8,164,354 B2 Expired

Proximity detection system

This system detects when an object gets close to a specific spot using a special sensor. It works by attaching a capacitive sensor to a machine part, which then sends out an electrical signal. When something approaches, the signal changes, and the system uses this change to decide if an object is present. The system is specifically designed to adjust its detection sensitivity dynamically based on the sensor's known location or the passage of time.

Why it matters: Filed before modern microcontrollers made complex, dynamic thresholding easier and more cost-effective. The claims' focus on adapting detection based on position or time is now much simpler to implement with current embedded processing power.

Status
ExpiredProtection ended and was never renewed
How hard to build
ModerateCapacitive sensor, control electronics, software logic

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