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1. (WO2001033854) SYSTEM HAVING AN IMPULSE NOISE FILTER MEANS

Pub. No.:    WO/2001/033854    International Application No.:    PCT/EP2000/010157
Publication Date: Fri May 11 01:59:59 CEST 2001 International Filing Date: Sat Oct 14 01:59:59 CEST 2000
IPC: H04B 10/18
H04B 15/02
H04N 7/10
H04N 7/173
H04B 10/02
H04N 7/22
Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V.
Inventors: JANSEN VAN DOORN, Arnold, K.
Title: SYSTEM HAVING AN IMPULSE NOISE FILTER MEANS
Abstract:
A communication system comprises a network, such as a hybrid fibre coax (HFC) network, one or more optical transmitters and potential impulse noise sources (NS) for example electrical in-home equipment, as well as filter means (5) coupled between the noise sources and the at least one optical transmitter, which filter means have a cut-off frequency, which is chosen in dependence on the noise frequency. Such an implementation prevents the optical filters in the upstream path of the system from blanking-out during periods of noise interference due to in particular in-home appliances. This improves a reliable upstream data transfer.