초록 ▼

A device for detecting contact pressure applied to a finger, the finger having a fingernail illuminated by light, comprises at least one photodetector for measuring a change in light reflected by an area of the finger beneath the fingernail in response to the contact pressure applied to the finger.

A device for detecting contact pressure applied to a finger, the finger having a fingernail illuminated by light, comprises at least one photodetector for measuring a change in light reflected by an area of the finger beneath the fingernail in response to the contact pressure applied to the finger. The photodetector provides a signal corresponding to the change in light reflected. The device also includes a processor for receiving the signal and determining whether the change corresponds to a specified condition. The photodetector may be enclosed in a housing and coupled to the fingernail.

대표청구항 ▼

[ We claim:] [1.]1. A device for detecting contact pressure applied to a finger, the finger having a fingernail illuminated by light, the device comprising:at least one photodetector for measuring a change in light reflected by an area of the finger beneath the fingernail in response to the contact

[ We claim:] [1.]1. A device for detecting contact pressure applied to a finger, the finger having a fingernail illuminated by light, the device comprising:at least one photodetector for measuring a change in light reflected by an area of the finger beneath the fingernail in response to the contact pressure applied to the finger and providing a signal corresponding to the change; anda processor for receiving the signal and determining whether the change corresponds to a specified condition.