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Humidity sensor disables display

IP.com Disclosure Number: IPCOM000237796D
Publication Date: 2014-Jul-11
Document File: 1 page(s) / 18K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a moisture sensor for a smart phone that disables only certain components when moisture is present, allowing continued use of the calling feature.

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Humidity sensor disables display

Portable electronic devices are prone to damage from moisture. Most smart phones, for example, have a sensor that detects if the device has become immersed in water or just been in an area of extreme humidity. This sensor is currently used for just tracking warranty information.

A method is needed to prevent the damage to the device in the first place. Currently, methods exist to simply turn off the device if a sensor is tripped; however, this may cause undo inconvenience or even endanger the user if the phone is completely powered down during a critical time.

The novel contribution is a sensor that disables only certain components when moisture is present. Upon activation of the moisture sensor, depending on the current usage state of the phone, the phone powers down unused subsystems. The phone continues to power down subsystems that are unused. These sub systems stay off until the user enters a reactivation code (perhaps through the web). If the user needs to make another emergency call, then the phone boots to a low power mode. The advantage of this system is that if the user is on an emergency call, the phone does not cut off the call.

Example Embodiment


User A's car breaks down in a remote area. While User A is calling for help, the humidity sensor is tripped (due to rain, splash from drink, etc.). The phone deactivates the screen, wireless connection, backlighting on the keys, etc.; anything unrelated to keeping the call....