Digital super-regenerative detector rf receiver

H - Electricity – 04 – B

Patent

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Details

H04B 1/16 (2006.01) G08C 17/02 (2006.01) H03D 11/08 (2006.01) H04B 1/30 (2006.01) H04L 27/00 (2006.01) H04L 27/06 (2006.01) H03D 11/00 (2006.01)

Patent

CA 2194382

A digital super-regenerative receiver is provided having an analog (RF) detector (500) and a regenerative oscillator (514). The output of the RF detector (500) is used to generate a digital signal (701) from which the oscillator bias is adjusted, in order to maintain the oscillator start-up time at a fixed level. The circuit senses if the start-up time is earlier or later than the predetermined start-up time and produces an output when the majority of the start times are ahead of the expected start time.

L'invention porte sur un récepteur superrégénateur pourvu d'un détecteur (500) analogique de fréquences radio et d'un oscillateur (514) de régénération. Le signal de sortie du détecteur (500) sert à produire un signal numérique (701) servant à régler la polarisation de l'oscillateur en vue de maintenir le temps de démarrage à un niveau constant. Le circuit détecte si le temps de démarrage est en avance ou en retard sur le temps de démarrage prédéterminé et produit un signal de sortie quand la majorité des temps de démarrage sont en avance sur le temps de démarrage prévu.

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