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.
H04N 21/647 - Control signaling between network components and server or clientsNetwork processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load or bridging between two different networks, e.g. between IP and wireless
A choke comprising a ferrite core (202) having a first diameter (204); a conductor (206) wound around the core into a plurality of windings characteristic to a first frequency range of the RF signals, wherein a first end (206a) of said windings is substantially aligned with a first end (202a) of the core (202) and a subset of said windings (206b), from a second end of said windings, extends beyond a second end of the core (202b) or surrounds a length of the second end of the core, wherein said length of the second end of the core has a second smaller diameter (208), for extending an upper frequency edge of the first frequency range.
A network element of a cable television network includes at least a first and a second upstream amplifier stage, a first attenuator and a first equalizer between the first and the second amplifier stage, and a second attenuator after the second upstream amplifier stage in upstream signal path direction. A target value is determined for total attenuation of the components of the amplifier. The total attenuation is a sum of attenuations of the first attenuator, the first equalizer, and the second attenuator. The attenuation of the first equalizer is preset. The attenuation of the first attenuator is set to a maximum value such the sum of the attenuations of the first attenuator and the first equalizer is below a first threshold value. The attenuation of the second attenuator is set such that the total attenuation reaches the target value.
A network element of a cable television (CATV) network, said network element comprising one or more amplifier units for amplifying downstream signal transmission for digital output into one or more output channels; means for detecting output power of all active digital output channels; means for providing a predetermined correlation between the detected output power of said active digital output channels and a corresponding minimum bias current for said one or more amplifier units; and means for adjusting the bias current of said one or more amplifier units on the basis of the predetermined correlation.
H04N 21/238 - Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidthProcessing of multiplex streams
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Optical transmitters of electronic signals, optical receivers of electronic signals, television modulators, demodulators, ethernet switches, data transcoders, signal converters, signal processors, amplifiers, attenuators and cable equalizers for cable television networks, electronic testing equipment namely network cable testers, indoor and outdoor radio frequency signal taps and signal splitters for cable television networks.
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 (330); 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 (340); means (360) for inputting a control signal for adjusting one or more amplification parameters of the downstream amplifier; and means (350) 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.
H04N 21/647 - Control signaling between network components and server or clientsNetwork processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load or bridging between two different networks, e.g. between IP and wireless
A network element (200) of a cable television (CATV) network, comprising an input (204) for upstream signal transmission; at least two diplex filters (210, 212, 214) configured to be connected to said input (204), a first diplex filter (210) comprising a bandpass filter for a first upstream frequency band and a second diplex filter (212) comprising a bandpass filter for a second upstream frequency band; a switch (208) for connecting one of said at least two diplex filters to said input; wherein the network element is configured to be remotely controlled by a headend of the CATV network for selecting the diplex filter.
H04B 10/2575 - Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
H03H 7/48 - Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
H03J 5/24 - Discontinuous tuningSelecting predetermined frequenciesSelecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
H03J 9/00 - Remote-control of tuned circuitsCombined remote-control of tuning and other functions, e.g. brightness, amplification
H04H 20/78 - CATV [Community Antenna Television] systems
H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
A network element (300) of a cable television (CATV) network, said network element comprising one or more amplifier units (306, 308, 310, 312) for amplifying downstream signal transmission for digital output into one or more output channels; means (314) for detecting output power of all active digital output channels; means for providing a predetermined correlation between the detected output power of said active digital output channels and a corresponding minimum bias current for said one or more amplifier units; and means for adjusting the bias current of said one or more amplifier units on the basis of the predetermined correlation.
A network element (200) of a cable television (CATV) network, said network element comprising one or more amplifier units (206, 208, 210, 212) for amplifying downstream signal transmission for digital output into one or more output channels; means (214) for detecting modulation error ratio (MER) of all active digital output channels; and means for reducing bias current of said one or more amplifier units from a predetermined value until the MER value reaches a predetermined minimum value.
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 (330); 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 (340); means (360) for inputting a control signal for adjusting one or more amplification parameters of the downstream amplifier; and means (350) 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.
A network element of a cable television (CATV) network, said network element comprising a distributed access node unit comprising a core network interface for receiving downstream signals; one or more amplifier units for amplifying downstream signal transmission for output into one or more output channels; a digital predistorion functionality for supplying a predistorion signal into an input of at least one of the amplifier units for correcting non-linearity of the amplifier unit, wherein a sampling signal for adjusting a level of the predistorion signal is obtained from a sampling point common with at least one other functionality of the network element requiring a sampling signal.
H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
H04B 10/2513 - Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
H04B 10/2575 - Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
A network element of a cable television (CATV) network, said network element comprising one or more amplifier units for amplifying downstream signal transmission for output into one or more output channels; means for obtaining information about active output channels; and means for adjusting bias current of said one or more amplifier units on the basis of the information about the active output channels.
H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
H04B 10/2575 - Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
H04B 10/69 - Electrical arrangements in the receiver
H04N 21/438 - Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
A network element (200) of a cable television (CATV) network, comprising an input (204) for upstream signal transmission; at least two diplex filters (210, 212, 214) configured to be connected to said input (204), a first diplex filter (210) comprising a bandpass filter for a first upstream frequency band and a second diplex filter (212) comprising a bandpass filter for a second upstream frequency band; a switch (208) for connecting one of said at least two diplex filters to said input; wherein the network element is configured to be remotely controlled by a headend of the CATV network for selecting the diplex filter.
H03H 7/46 - Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
H03J 5/24 - Discontinuous tuningSelecting predetermined frequenciesSelecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
H03J 9/00 - Remote-control of tuned circuitsCombined remote-control of tuning and other functions, e.g. brightness, amplification
H04B 1/00 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission
H04B 1/50 - Circuits using different frequencies for the two directions of communication
H04H 20/78 - CATV [Community Antenna Television] systems
H04N 7/10 - Adaptations for transmission by electrical cable
09 - Scientific and electric apparatus and instruments
Goods & Services
Electrical and optical measuring, controlling devices and instruments, namely, optical transmitters of electronic signals, optical receivers of electronic signals, television modulators, demodulators, ethernet switches, data transcoders, signal converters, signal processors, amplifiers, media converters, attenuators and cable equalizers for cable television networks, and optical remote PHY nodes; electrical telecommunications devices and instruments, namely, optical transmitters of electronic signals, optical receivers of electronic signals, television modulators, demodulators, ethernet switches, data transcoders, signal converters, signal processors, amplifiers, media converters, attenuators and cable equalizers for cable television networks, and optical remote PHY nodes
09 - Scientific and electric apparatus and instruments
Goods & Services
Equipment for reception, transfer, and distribution of analogue and digital signals, namely, optical transmitters of electronic signals, optical receivers of electronic signals, television modulators, demodulators, ethernet switches, data transcoders, signal converters, signal processors, amplifiers, attenuators and cable equalizers for cable television networks, electronic testing equipment in the nature of media converters for optical and copper cables for cable television networks, indoor and outdoor radio frequency signal taps and signal splitters for cable television networks, optical passives in the nature of filters and signal splitters for cable television networks; replacement parts and accessories used in cable television and broadband networks, namely, electric connectors, junction boxes and electrical terminators; software used in receiving, transferring, processing and distribution of analogue and digital signals, and for network management; all the above mentioned goods for cable television networks and broadband data networks
09 - Scientific and electric apparatus and instruments
Goods & Services
Electrical and optical measuring and controlling devices and instruments, namely electrical telecommunication devices and instruments for cable television network; none of the aforesaid goods are related to urban transportation, railway transportation, freight transportation, transportation of goods, traffic management, traffic regulation and passenger information.
09 - Scientific and electric apparatus and instruments
Goods & Services
Coaxial cables and connectors used in cable and broadband networks and in-house cable as well as in satellite distribution and video surveillance networks.
09 - Scientific and electric apparatus and instruments
38 - Telecommunications services
Goods & Services
Equipment for reception, transfer, processing and distribution of analogue and digital signals, especially encoders, decoders, transmitters, receivers, modulators, demodulators, multiplexers, demultiplexers, switches, data coders, data bridges, converters, processors, amplifiers, attenuators and equalizers, and parts and accessories thereof; Testing equipment, media converters, RF passives (indoor and outdoor taps and splitters in particular), optical passives (filters and splitters in particular), and parts and accessories thereof; Software for reception, transfer, processing and distribution of analogue and digital signals and network management. Consulting services relating to telecommunications and/or transfer of audio, pictures and video, data and information by means of telecommunication (including the Internet).
09 - Scientific and electric apparatus and instruments
Goods & Services
Equipment for reception, transfer, modulating, processing and/or distribution of digital signals and/or data; software for reception, transfer, modulating, processing and/or distribution of digital signals and/or data.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electronic apparatus and instruments, in particular diplexers, cables, leads, amplifiers, nodal points, transmitters, receivers, repeaters, routers, modems, cameras, headend apparatus, encoders, decoders, recorders, software and images and drawings stored on electronic equipment in relation to cable TV networks, CCTV networks, alarm systems, mobile phone networks, telecommunications networks, local area networks, optical networks, coaxial and electrical networks and wall sockets, distribution boxes, connectors, scalers, suppressors, equalizers, filters, distribution cabinets, couplers, modulators, transformers, and power sources. Manpower agency services, personnel hire. Service, installation, maintenance, and supervision of installation of cable TV networks, CCTV networks, alarm systems, mobile phone networks, telecommunications networks, local area networks, optical networks, coaxial networks and electrical power networks; construction, installation and building project administration and management. Consultancy and planning in relation to cable TV networks, CCTV networks, alarm systems, mobile phone networks, telecommunications networks, local area networks, optical networks, coaxial networks and electrical power networks.
