Patents by Inventor Pere Tuset
Pere Tuset 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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Patent number: 11188275Abstract: In an example, a method of anticipating maintenance in a printing device includes determining an inertial reference signal of a printer carriage and measuring a current inertial signal of the printer carriage. The method includes cross-correlating the inertial reference signal with the current inertial signal and determining from the cross-correlating when the current inertial signal is not within a preset confidence interval of the inertial reference signal.Type: GrantFiled: January 13, 2015Date of Patent: November 30, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Xavier Vilajosana, Pere Tuset, Pol Fornos
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Patent number: 10912051Abstract: Methods and devices for synchronizing a device clock in a wireless network (e.g. a LPWAN) are disclosed. Example methods comprise identifying a device temperature, identifying a clock drift associated with the identified device temperature and applying a correction to the device clock based on the identified drift. For the identified device temperature, the drift is identified by comparing the confidence of the drift value in a pre-calibration curve generated from fixed drift values in a pre-calibration table with the confidence of the drift value in a learning curve generated from variable drift values in a learning table and selecting the drift value from the curve having the higher drift confidence.Type: GrantFiled: July 22, 2016Date of Patent: February 2, 2021Assignee: FUNDACIÓ PER A LA UNIVERSITAT OBERTA DE CATALUNYAInventors: Xavier Vilajosana Guillén, Borja Martínez Huerta, Ferran Adelantado Freixer, Pere Tuset Peiró
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Patent number: 10625500Abstract: In an example, a print apparatus includes a printhead carriage to receive a printhead comprising a print agent ejection nozzle, a drop detector to acquire a signal indicative of variations in a parameter detected by the drop detector over a period of drop detection, a memory to hold a print agent ejection signature, and processing circuitry. The processing circuitry includes a convolution module to convolve the drop detector signal with the print agent ejection signature, and the processing circuitry is to determine, from an output of the convolution module, an indication of similarity between the drop detector signal and the print agent ejection signature.Type: GrantFiled: July 25, 2016Date of Patent: April 21, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Pere Tuset, Xavier Vilajosana, Sheila Cabello
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Patent number: 10539474Abstract: In some examples, a method comprises sensing a temperature of a plurality of sub-regions of a portion of a layer of build material in an object generation apparatus. A frequency distribution of sub-region temperatures may be derived therefrom and it may be determined whether the frequency distribution is bimodal. If the frequency distribution is not bimodal, a build material temperature zone is identified. If however the frequency distribution is bimodal, a fusing build material temperature zone and a non-fusing build material temperature zone are identified. The method may further comprise determining a nominal temperature of the at least one identified temperature zone.Type: GrantFiled: July 21, 2015Date of Patent: January 21, 2020Inventors: Xavier Vilajosana, Pere Tuset, Diego Javier Mostaccio
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Patent number: 10427408Abstract: In an example, a printhead maintenance apparatus includes a pump, a current monitor and processing circuitry. The pump may be provided to increase a pressure in a printhead, and the current monitor may monitor a current consumption of the pump. The processing circuitry may determine a rate of change of current consumption of the pump, and compare the rate of change of current consumption to a predetermined threshold.Type: GrantFiled: July 25, 2016Date of Patent: October 1, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Pere Tuset, Sheila Cabello, Xavier Vilajosana
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Publication number: 20190246367Abstract: Methods and devices for synchronizing a device clock in a wireless network (e.g. a LPWAN) are disclosed. Example methods comprise identifying a device temperature, identifying a clock drift associated with the identified device temperature and applying a correction to the device clock based on the identified drift. For the identified device temperature, the drift is identified by comparing the confidence of the drift value in a pre-calibration curve generated from fixed drift values in a pre-calibration table with the confidence of the drift value in a learning curve generated from variable drift values in a learning table and selecting the drift value from the curve having the higher drift confidence.Type: ApplicationFiled: July 22, 2016Publication date: August 8, 2019Inventors: Xavier VILAJOSANA GUILLÉN, Borja MARTÍNEZ HUERTA, Ferran ADELANTADO FREIXER, Pere TUSET PEIRÓ
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Publication number: 20190143694Abstract: In an example, a printhead maintenance apparatus includes a pump, a current monitor and processing circuitry. The pump may be provided to increase a pressure in a printhead, and the current monitor may monitor a current consumption of the pump. The processing circuitry may determine a rate of change of current consumption of the pump, and compare the rate of change of current consumption to a predetermined threshold.Type: ApplicationFiled: July 25, 2016Publication date: May 16, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Pere Tuset, Sheila Cabello, Xavier Vilajosana
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Publication number: 20190092002Abstract: In an example, a print apparatus includes a printhead carriage to receive a printhead comprising a print agent ejection nozzle, a drop detector to acquire a signal indicative of variations in a parameter detected by the drop detector over a period of drop detection, a memory to hold a print agent ejection signature, and processing circuitry. The processing circuitry includes a convolution module to convolve the drop detector signal with the print agent ejection signature, and the processing circuitry is to determine, from an output of the convolution module, an indication of similarity between the drop detector signal and the print agent ejection signature.Type: ApplicationFiled: July 25, 2016Publication date: March 28, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Pere Tuset, Xavier Vilajosana, Sheila Cabello
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Patent number: 10142765Abstract: Method and apparatus for sending and receiving data in a wireless machine to machine communication network comprising at least a gateway (2) and a plurality of nodes (4), implementing an hybrid Medium Access Control protocol to access the shared medium. In order to prevent collisions when sending data transmissions (26), nodes (4) request access to the medium with access request packets (25), and are informed by the gateway (2) if said access request packets (25) are received correctly or if a collision occurred. According to the feedback information (24) provided by the gateway (2), nodes (4) are organized in a distributed queuing system with separate queues collision resolutions and data transmissions (26). Time slots (19) with fixed length are used, divided into three separate subperiods for feedback information (24), access request packets (25) and data transmissions (26). The method and apparatus further implements channel hopping to reduce interferences from adjacent networks.Type: GrantFiled: May 31, 2013Date of Patent: November 27, 2018Inventors: Pere Tuset Peiró, Xavier Vilajosana Guillen
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Publication number: 20180133971Abstract: A method for thermal control in an additive manufacturing system is disclosed: the method including receiving position information from an encoder device, receiving a data stream from a thermal sensing device, filtering the data stream based on the position information and building a temperature image map from the filtered data stream. A thermal control system and an additive manufacturing system having a thermal control system are also disclosed.Type: ApplicationFiled: July 22, 2015Publication date: May 17, 2018Inventors: Xavier VILAJOSANA, Pere TUSET, Diego Javier MOSTACCIO
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Publication number: 20180052064Abstract: In some examples, a method comprises sensing a temperature of a plurality of sub-regions of a portion of a layer of build material in an object generation apparatus. A frequency distribution of sub-region temperatures may be derived therefrom and it may be determined whether the frequency distribution is bimodal. If the frequency distribution is not bimodal, a build material temperature zone is identified. If however the frequency distribution is bimodal, a fusing build material temperature zone and a non-fusing build material temperature zone are identified. The method may further comprise determining a nominal temperature of the at least one identified temperature zone.Type: ApplicationFiled: July 21, 2015Publication date: February 22, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Xavier Vilajosana, Pere Tuset, Diego Javier Mostaccio
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Publication number: 20170344314Abstract: In an example, a method of anticipating maintenance in a printing device includes determining an inertial reference signal of a printer carriage and measuring a current inertial signal of the printer carriage. The method includes cross-correlating the inertial reference signal with the current inertial signal and determining from the cross-correlating when the current inertial signal is not within a preset confidence interval of the inertial reference signal.Type: ApplicationFiled: January 13, 2015Publication date: November 30, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Xavier Vilajosana, Pere Tuset, Pol Fornos
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Publication number: 20160112824Abstract: Method and apparatus for sending and receiving data in a wireless machine to machine communication network comprising at least a gateway (2) and a plurality of nodes (4), implementing an hybrid Medium Access Control protocol to access the shared medium. In order to prevent collisions when sending data transmissions (26), nodes (4) request access to the medium with access request packets (25), and are informed by the gateway (2) if said access request packets (25) are received correctly or if a collision occurred. According to the feedback information (24) provided by the gateway (2), nodes (4) are organized in a distributed queuing system with separate queues collision resolutions and data transmissions (26). Time slots (19) with fixed length are used, divided into three separate subperiods for feedback information (24), access request packets (25) and data transmissions (26). The method and apparatus further implements channel hopping to reduce interferences from adjacent networks.Type: ApplicationFiled: May 31, 2013Publication date: April 21, 2016Applicant: FUNDACIÓ PER A LA UNIVERSITAT OBERTA DE CATALUNYAInventors: Pere Tuset Peiró, Xavier Vilajosana Guillen