Teleste Oyj

Other

Teleste Networks Oy

Sami Halen

Kari Mäki

Pekka Hilke

Tommi Ketola

Toni Rumpunen

Perttu Fagerlund

Anssi Mäkiranta

Sami Kuusisto

Matti Susi

Carlos Colson

A network element of a cable television (CATV) network, comprising at least a first and a second downstream amplifier stage; a first signal path comprising a first equalizer and a second signal path comprising a second equalizer between the first and the second amplifier stage; a switch configured to connect the first equalizer or the second equalizer to be used between the first and the second amplifier stage; a sampling circuit configured to provide a first sampling signal associated with the first signal path and a second sampling signal associated with the second signal path from an output of the second amplifier stage; and a control unit configured to control the switch to connect the first signal path or the second signal path to be used between the first and the second amplifier stage based on said first and second sampling signals.

Arrangement for adjusting frequency response

A network element of a cable television (CATV) network, comprising a first input for downstream signal transmission; a plurality of components arranged to form a downstream signal path, wherein at least one of said components is a downstream amplifier (); a second input for upstream signal transmission; a plurality of components arranged to form an upstream signal path, wherein at least one of said components is an upstream amplifier (); means () for inputting a control signal for adjusting one or more amplification parameters of the downstream amplifier; and means () for adjusting one or more amplification parameters of the upstream amplifier, wherein said one or more amplification parameters of the upstream amplifier are automatically calculated on the basis of the one or more amplification parameters of the downstream amplifier.

Arrangement for adjusting amplification

A network element of a cable television (CATV) network, comprising an input for signal transmission; at least two diplex filters configured to be connected to said input, a first diplex filter comprising bandpass filters for a first upstream and downstream frequency bands and a second diplex filter comprising bandpass filters for a second upstream and downstream frequency bands, wherein an upper frequency edge of the second upstream frequency band is higher than an upper frequency edge of the first upstream frequency band and higher than or equal to a lower frequency edge of the first downstream frequency band and a lower frequency edge of the second downstream frequency band is higher than the upper frequency edge of the second upstream frequency band; a control circuit for measuring energy of radio frequency signals below said second downstream frequency band; and a switch for connecting one of said at least two diplex filters to said input, wherein said control circuit is configured to control the switch to connect the first diplex filter to said input in response to the energy of radio frequency signals below said second downstream frequency band exceeding a threshold value; or connect the second diplex filter to said input in response to the energy of radio frequency signals below said second downstream frequency band at most reaching the threshold value.

Arrangement for CATV network

The invention relates to a use of an apparatus for configuring two or more communication-related parameters in a cable modem system. The apparatus comprises a processor, a cable television signal input interface for receiving one or more cable television signals, and a cable modem termination system unit for providing access to a communication network.

Use of an apparatus for configuring communication-related parameters

The invention relates to a use of an apparatus for improving signal to noise ratio in a cable modem system. The apparatus comprises a processor, an attenuator and a cable modem termination system unit for providing access to a communication network.

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Kaarina, Finland

Sami Halen