Koninklijke Philips Corporation N.V.

Am&eacute;rico Brajal

Antoine Chouly

Delphine Legrand

Marouane Berrada

Disclosed is a communication system comprising a main station, a transmission medium, and terminals. The terminals transmit requests to the main station have reservations granted to them on the transmission medium. Each request indicates a number of reservations. Upon receiving a request, the main station adds the number of reservations indicated to an allocation counter associated with the requesting terminal. The invention enables the requesting method to be less vulnerable to data losses. It consists in a resetting of the request counter and allocation counter, for example when an anomaly is detected in the transmission of the data.

Reservation requesting and allocating method on a transmission medium

The invention relates to a system for transmitting TDMA packets between interactive terminals and a head station via a transmission medium, in which the receiver effects a oversampling of the received signal so as to retrieve the optimal sample corresponding to the transmitted symbol. The invention proposes a method of recovering this optimal sampling instant very rapidly by performing a polynomial interpolation computation between the generated oversamples so as to derive the optimal sampling instant and by filtering the received signal by means of a low-pass filter centered at the optimal sampling instant.

Growing community of inventors

Villeneuve-le-Roi, France

Américo Brajal

Growing community of inventors

Villeneuve-le-Roi, France

Am&eacute;rico Brajal

Américo Brajal