Trash can with power operated lid

What is this patent about?

’582 is related to the field of power-operated receptacles, specifically automated trash cans equipped with motorized lids. Traditional sensor-based trash cans often suffer from reliability issues, such as false triggering caused by ambient light or fluctuating indoor lighting, and inconsistent lid performance as battery levels deplete. The background context involves improving the user experience by ensuring the lid responds only to intentional gestures while maintaining consistent mechanical operation.

The underlying idea behind ’582 is the implementation of a dynamic sensitivity architecture that adjusts the sensor’s polling behavior and signal strength based on the lid's current state. By utilizing an encrypted, pulsed light signal—specifically at least a three-bit encryption—the system can distinguish between a user’s hand and the chaotic light pulsations emitted by aging fluorescent tubes or sunlight. This creates a robust optical fence that is highly resistant to environmental noise.

The claims of ’582 focus on an enclosed receptacle featuring a motorized lid assembly governed by a controller with a specialized increased sensitivity module. This module is designed to actively modify the frequency or amperage of the light signal to enhance detection reliability. The independent claim specifically protects the combination of a light emitter/receiver pair and a controller that triggers lid movement only after a signal is validated a predetermined number of times, while dynamically boosting signal parameters to ensure responsiveness.

In practice, the invention employs a hypermode that increases the amperage of the infrared signal when the lid is open, extending the detection range and making it easier for a user to keep the lid open during extended tasks. To prevent the lid from accidentally reopening due to its own motion, the controller switches to a high-filter mode during the closing cycle, requiring a higher threshold of validated pulses before reversing the motor. This state-aware logic ensures the device remains sensitive when needed but stable during mechanical transitions.

Differentiation from prior approaches is achieved through the use of oblong viewing angles and speed compensation logic. By shaping the sensor's field of vision to be wide horizontally but narrow vertically, the system avoids triggering when a user simply walks past the bin. Furthermore, the controller monitors battery voltage and applies speed offsets to the motor, ensuring the lid opens and closes at a constant velocity regardless of whether the batteries are fresh or nearing exhaustion, a significant improvement over standard unregulated DC motor drives.