Patents by Inventor Kari Maki
Kari Maki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230388450Abstract: A network element of a cable television (CATV) network, comprising an input for upstream signal transmission; one or more diplex filters (210, 212, 214) connectable to said input, the diplex filters (210, 212, 214) comprising bandpass filters for different upstream and downstream frequency bands; a plurality of components arranged to form an upstream signal path, wherein at least one of said components is an upstream amplifier (206c); means (216) for detecting a type of the diplex filter connected between said input and the upstream signal path; means (216) for determining a control signal for adjusting bias current of the upstream amplifier (206c), wherein the control signal is based on at least a type of the diplex filter; and means for adjusting the bias current of the upstream amplifier (206c) based on the control signal.Type: ApplicationFiled: September 21, 2020Publication date: November 30, 2023Inventors: Jonne VUORINEN, Mika RINTALAULAJA, Kari MÄKI
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Publication number: 20230300423Abstract: 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.Type: ApplicationFiled: March 10, 2023Publication date: September 21, 2023Inventors: Kari MÄKI, Sami HALEN
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Publication number: 20230199265Abstract: A network element of a cable television (CATV) network, comprising one or more amplifier units for amplifying downstream signal transmission into one or more output channels; a temperature sensor configured to detect one or more of the following: ambient temperature of the network element, and/or one or more of components of the network element; a memory configured to store a predetermined correlation between the detected ambient temperature and a corresponding correction of a bias current for said one or more amplifier units; and a processing unit configured to control the bias current of said one or more amplifier units to be adjusted based on the predetermined correlation.Type: ApplicationFiled: December 22, 2021Publication date: June 22, 2023Inventors: Kari MÄKI, Jonne VUORINEN
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Patent number: 11595733Abstract: 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.Type: GrantFiled: April 15, 2022Date of Patent: February 28, 2023Assignee: TELESTE OYJInventor: Kari Mäki
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Publication number: 20220345788Abstract: 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.Type: ApplicationFiled: April 15, 2022Publication date: October 27, 2022Inventor: Kari MÄKI
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Patent number: 11297280Abstract: 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.Type: GrantFiled: January 18, 2018Date of Patent: April 5, 2022Assignee: Teleste OYJInventors: Sami Halen, Sami Kuusisto, Kari Mäki, Anssi Mäkiranta, Matti Susi
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Patent number: 11197070Abstract: 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.Type: GrantFiled: June 27, 2018Date of Patent: December 7, 2021Assignee: Teleste OYJInventor: Kari Mäki
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Publication number: 20210266643Abstract: 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.Type: ApplicationFiled: June 27, 2018Publication date: August 26, 2021Applicant: Teleste OyjInventor: Kari MÄKI
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Publication number: 20200374484Abstract: 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.Type: ApplicationFiled: January 18, 2018Publication date: November 26, 2020Applicant: Teleste OyjInventors: Sami HALEN, Sami KUUSISTO, Kari MÄKI, Anssi MÄKIRANTA, Matti SUSI
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Patent number: 10841009Abstract: 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.Type: GrantFiled: April 15, 2016Date of Patent: November 17, 2020Assignee: Teleste OyjInventors: Kari Mäki, Timo Lummejoki, Anssi Mäkiranta
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Publication number: 20200329282Abstract: 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 predistorian signal is obtained from a sampling point common with at least one other functionality of the network element requiring a sampling signal.Type: ApplicationFiled: November 6, 2017Publication date: October 15, 2020Applicant: Teleste OyjInventors: Kari MÄKI, Sami KUUSISTO, Sami HALEN, Perttu FAGERLUND
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Publication number: 20200314510Abstract: 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.Type: ApplicationFiled: November 6, 2017Publication date: October 1, 2020Applicant: Teleste OyjInventors: Perttu FAGERLUND, Kari MÄKI, Sami KUUSISTO, Ilkka RITAKALLIO, Jyrki ALAMAUNU, Toni RUMPUNEN
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Patent number: 10666449Abstract: 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 tType: GrantFiled: October 12, 2018Date of Patent: May 26, 2020Inventors: Carlos Colson, Kari Mäki, Sami Halen
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Publication number: 20200036445Abstract: 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.Type: ApplicationFiled: April 15, 2016Publication date: January 30, 2020Applicant: Teleste OyjInventors: Kari Mäki, Timo Lummejoki, Anssi Mäkiranta
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Publication number: 20190207690Abstract: A network element of a cable television (CATV) network, said network element comprising a distributed access node comprising a core network interface for receiving a plurality of broadcast multiplexes; means for dividing the plurality of broadcast multiplexes into at least a first transmission content and a second transmission content, wherein the first and the second transmission content comprise at least partly different multiplexes; and means for transmitting the first transmission content to a first network segment and the second transmission content to a second network segment.Type: ApplicationFiled: September 14, 2016Publication date: July 4, 2019Applicant: Teleste OyjInventors: Kari Mäki, Olli Leppänen, Perttu Fagerlund
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Publication number: 20190116057Abstract: 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 tType: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Applicant: Teleste OyjInventors: Carlos Colson, Kari Mäki, Sami Halen
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Publication number: 20040093102Abstract: The invention relates to a method and system for the maintenance of a production plant. The method and system of maintenance is carried out in the production plant (100) on objects of work which comprise production plant equipment. In addition, a plan is worked out for maintenance, in which the objects of work to be checked and the actions to be carried out on them during each maintenance cycle are defined, and an equipment card is made for each object of work to be maintained, which equipment card is maintained on an application server (30).Type: ApplicationFiled: July 7, 2003Publication date: May 13, 2004Inventors: Sami Liiri, Kari Maki