IrDA
The Infrared Data Association (IrDA) defines physical specifications communications protocol standards for the short-range exchange of data over infrared light, for uses such as personal area networks (PANs).
- IrDA is a very short-range example of free-space optical communication.
- IrDA interfaces are used in palmtop computers, mobile phones, and laptop computers (many laptops no longer offer IrDA in favor of Bluetooth).
- IrDA specifications include IrPHY, IrLAP, IrLMP, IrCOMM, Tiny TP, IrOBEX, IrLAN and IrSimple. IrDA has now produced another standard, IrFM, for Infrared financial messaging (i.e., for making payments) also known as "Point & Pay".
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