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Lewis Security Systems Ltd
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Lewis Security Systems Ltd
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Priority to ES456960ApriorityCriticalpatent/ES456960A1/es
Publication of ES456960A1publicationCriticalpatent/ES456960A1/es
Perfeccionamientos en los sistemas de señalización por radio, caracterizados porque el sistema incluye cierto número de fichas portátiles capaces cada una de transmitir señales en forma de ráfagas de frecuencia portadora separadas por impulsos de modulación, siendo característico el número de ciclos en cada ráfaga de dicha ficha, y un receptor capaz de distinguir entre señales recibidas de fichas con diferentes números características de ciclos en sus brazos.
ES456960A1977-03-171977-03-17Perfeccionamientos en los sistemas de senalizacion por ra- dio.
ExpiredES456960A1
(es)
Transmission of multiplexed PAM signals over multiple channel and diversity systems(Multiplexed PAM signal transmission over random time multichannel and diversity systems, discussing optimization for receiver frequency response by numerical solution)
Noise immunity of the practical noncoherent reception of multifrequency signals in a fading channel(Noise stability during noncoherent reception of frequency shift keyed signal by receiver with finite Q predetector integrators in presence of fading)
Noise stability of a''preselector-detector- noncommutated low-pass filter-threshold device'' network during the detection of a finite-duration noise signal(Noise stability of receiver network during detection of finite duration noise signal on white noise background, considering various narrow band preselectors)