Infrared

A wireless communication technology that uses infrared light to transmit data over short distances, commonly used in assistive technology for line-of-sight data exchange between devices. In accessibility applications, infrared transmission has been used in systems like Talking Signs to broadcast audio information from signage to handheld receivers, and in indoor navigation systems where directional IR signals can help determine a user's proximity and orientation relative to specific locations. IR communication requires direct line-of-sight between transmitter and receiver, which can be both a limitation and an advantage for precise spatial targeting.