H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 11/06 (2006.01) H04J 1/12 (2006.01) H04L 5/02 (2006.01) H04L 5/16 (2006.01) H04L 25/03 (2006.01) H04L 27/26 (2006.01) H04N 7/10 (2006.01) H04N 7/14 (2006.01) H04N 7/24 (2006.01)
Patent
CA 2221761
A two-way point to multipoint data transmission system comprises an upstream unit, a plurality of downstream units, and a transmission line connecting the downstream units to the upstream unit. At least one headend modem is located at the upstream unit and at least one downstream modem is located at the downstream units. The modems employ multitone orthogonal frequency division multiplexing (OFDM) to establish two-way communication between the upstream and downstream units. The OFDM has a tone spacing selected to minimize the ingress of electromagnetic interference at least in the upstream direction.
Un système de transmission de données point-multipoint à deux voies comprend une unité amont, une pluralité d'unités aval, et une ligne de transmission reliant les unités aval à l'unité amont. Au moins un modem de tête de réseau est placé au niveau de l'unité amont et au moins un modem aval est placé au niveau des unités aval. Les modems utilisent un multiplexage par répartition en fréquence octogonale multitonalité (MRFO) afin d'établir une communication bidirectionnelle entre l'unité amont et les unités aval. Le MRFO possède un espacement de tonalité choisi afin de réduire au minimum les interférences électromagnétiques au moins dans le sens amont.
Marks & Clerk
Oneline Ag
West End Systems Corp.
LandOfFree
Bidirectional point to multipoint network using multicarrier... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bidirectional point to multipoint network using multicarrier..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bidirectional point to multipoint network using multicarrier... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2086727