LSIs (large scale integrated circuits); ICs (integrated circuits); [ semi-conductors; electronic boards for telecommunications, audio, video and data processing uses; ] planar optical waveguides; laser diodes; [ laser drivers; photodetectors designed to detect light; ] optical switches for exchanging optical signals; [ fiber optic cables comprised of optical fibers, amplifiers, connectors, temperature sensors, heaters and temperature controllers; ] photodiodes; [ optical boards and systems comprised of optical fibers, amplifiers, connectors, channel wave guides, photodetectors, light-emitting diodes and lasers for telecommunications use; ] combined electronic and optical boards and systems comprised of optical fibers, amplifiers, connectors, channel wave guides, photodetectors, light-emitting diodes and lasers for communications use; video encoders; video decoders [ ; applications software for editing audio and video signals; desktop video conference systems comprised of a personal computer and camera; switches for converting data for local access networks; software tools for writing encrypted software; encrypted electronic mail software; encrypted LAN (local area network) gateways; encryption-producing apparatus in the nature of boards for telecommunications use; encrypting and decrypting systems for communications use; wireless antennas for medical use; remote sensing and control devices designed to sense utility conditions such as consumption, quantity or quality and to send data thereof using telecommunication lines using telecommunication networks; wireless sensing devices designed to sense ID tags for tableware use for data processing; automatic cash registers using wireless sensing; radars for underground sensing; controls for welding robots; electronic systems for capturing and transmitting medical images; radio transmitters and receivers for communications use ]