Non-linear compensation of timing jitter

H - Electricity – 04 – B

Patent

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H04B 10/18 (2006.01)

Patent

CA 2495363

Systems and methods for compensating transitions in a data stream to account for fitter including laser fitter. Transitions in the data stream are delayed or advanced depending on the laser fitter and/or whether the previous transition is a rising or falling transition. The compensation of transitions is non-linear such that compensation applied to a rising transition is not necessarily the same as compensation applied to a falling transition. A history of more than one or more bits or transitions of the data stream can be used to further adjust the compensation of transitions in the data stream. When a transition is detected, the bit following the detected transition is peaked either positively or negatively such that the following transition is accordingly delayed or advanced.

Il s'agit de systèmes et de méthodes qui permettent de compenser les transitions dans les flux de données pour tenir compte du vacillement comprenant le vacillement laser. Les transitions dans le flux de données sont retardées ou avancées, selon le vacillement laser et/ou si la transition précédente est croissante ou décroissante. La compensation des transitions est non linéaire, de sorte que la compensation appliquée à une transition croissante n'est pas nécessairement la même que la compensation appliquée à une transition décroissante. Un historique portant sur plusieurs ou de multiples bits de transitions du flux de données permet de peaufiner la compensation des transitions dans le flux de données. Lorsqu'une transition est détectée, le bit qui suit la transition détectée est quantifié en valeur de crête, positivement ou négativement, de sorte que la transition qui suit est retardée ou avancée en conséquence.

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