System having an impulse noise filter means

Details System having an impulse noise filter means System having an impulse noise filter means

2006-05-23

2006-05-23

Payne, David C. (Department: 2638)

Optical communications

Transmitter and receiver system

Including compensation

C725S124000

Reexamination Certificate

active

07050721

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 for example electrical in-home equipment, as well as filter means 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.

REFERENCES:
patent: 4207543 (1980-06-01), Izakson et al.
patent: 5142690 (1992-08-01), McMullan et al.
patent: 5915205 (1999-06-01), Chen
patent: 6151559 (2000-11-01), Williams

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