Channel skew identification and notification

H - Electricity – 04 – L

Patent

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H04L 25/14 (2006.01)

Patent

CA 2712865

Embodiments of the present invention analyze a plurality of parallel channels and identify specific channel(s) that have skew outside of an acceptable skew error margin. In certain embodiments, this skew is identified by determining the timing misalignment between a channel under test and a deskew channel. Other channels within the plurality of channels are masked by transmitting a repeating masked bit pattern. This timing misalignment may be measured by comparing a segment within the channel under test to a corresponding segment within the deskew channel and identifying a time differential between the two segments.

La présente invention concerne, dans certains de ses modes de réalisation, l'analyse d'une pluralité de canaux parallèles et l'identification de canaux spécifiques présentant une obliquité sortant d'une marge admissible d'erreur d'obliquité. Dans certains modes de réalisation, cette obliquité est identifiée en déterminant le désalignement temporel entre un canal en cours de test et un canal de redressement. D'autres canaux parmi la pluralité de canaux sont masqués par l'émission d'un motif répété de bits de masquage. Ledit désalignement temporel peut être mesuré en comparant un segment au sein du canal en cours de test à un segment correspondant au sein du canal de redressement et en identifiant un différentiel de temps entre les deux segments.

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