Sensing Strip for Providing Touch and Gesture Controls

Abstract

An infrared sensing strip includes a substantially linear substrate board, a receiver diode, and a plurality of light emitting diodes (LEDs) linearly aligned along the linear substrate board. Each of the LEDs is operative to transmit in a different direction. The infrared sensing strip utilizes prismatic films arranged to refract light from each of the LEDs in different directions. In one embodiment, the receiver diode is positioned centrally on the linear substrate board, and includes at least four LEDs, with two of each being disposed on either side of the receiver diode. Four prismatic films each cover a respective one of the LEDs and are arranged to refract light from each respective LED in one of four different directions. The small scale of the infrared sensing strip enables various applications including a scroll control, volume control, a heart rate monitor and various transmit and receive features.

Dependencies are inferred from the claim text.