Automatic half barrier based on control unit with microprocessor
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Radio beacon for locating accidents (disasters) with control by means of microprocessor
ES2026115A6
Single line automatic supervision system
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Portable system for protecting spoken information transmitted via a mobile radio communication network
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Perimetric protection system by means of metallic glass electromagnetic sensors
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System for the protection of spoken information transmitted via the telephone channel
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Portable system for the protection of spoken information transmitted via the telephone channel using frequency inversion techniques
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Protection system for spoken data transmitted by telephonic channel by means of combining techniques of frequency inversion and pseudo-random time permutation of voice segments
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Digital system for receiving and sending analogue telephotography
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System of communication with base for a driver out of the vehicle by means of a Hertzian wave microlink
