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IEC 61603-1 Ed. 1.0 b:1997
Transmission of audio and/or video and related signals using infra-red radiation - Part 1: General
Gives methods of measuring and specifiying the common technical features of systems using diffusely radiated or wide beams of infra-red radiation as carriers of information, mainly representing audio and/or video, but also control data related to audio and video apparatus.
International Electrotechnical Commission [iec]