Video cameras; microphones; computer software controlling the transmission, storage and retrieval of electronic video images; computer hardware and 'concentrators' also known as 'transervers' namely, specialized electronic devices which receive multiple electronic video image streams and assemble said video image steams in a format for efficient storage and retrieval and, upon demand, re-assemble such video image streams in the context required by the user, for use in the transmission, acquisition, storage, retrieval and communication of audio, video, motion sensory data, temperature sensory data, humidity sensory data, barometric pressure sensory data and light sensory data via global computer networks and telecommunications networks
Electrical and Scientific Apparatus