H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/10 (2006.01) H04L 27/12 (2006.01) H04L 27/156 (2006.01)
Patent
CA 2077227
A digital FSK receiver includes a zero-crossing detector which detects the zero crossings in an FSK signal having at least two signal frequencies. The time interval between zero crossings is then measured with a first interval value corresponding to one of the signal frequencies and a second interval value corresponding to the other signal frequency. An accumulator outputs a digital signal which depends on whether the interval is at the first value or the second value, the digital signal including logical zeros and ones.
Récepteur MDF comprenant un détecteur de passage à zéro qui détecte les passages à zéro d'un signal MDF ayant au moins deux fréquences. L'intervalle de temps entre les passages à zéro est ensuite mesuré, une première valeur d'intervalle correspondant à l'une des deux fréquences, et une deuxième valeur d'intervalle correspondant à l'autre. Un accumulateur produit un signal numérique qui varie selon que l'intervalle a la première valeur ou la deuxième valeur, le signal numérique comprenant les zéros et les uns logiques.
Elsag International B.v.
Ridout & Maybee Llp
LandOfFree
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