Patents Assigned to VTT
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Publication number: 20130010279Abstract: The invention relates to an omnidirectional lens, an optical measuring device, and a method for optical measurement. The lens comprises a central portion, collecting optically in a first direction, and an edge portion, which surrounds the central portion, and which is arranged to guide the light arriving at the edge portion omnidirectionally relative to the said first direction essentially transversely relative to the said first direction. According to the invention, the edge portion is arranged to guide the light through the central portion. With the aid of the invention, it is possible to create, for example, a simpler laser radar.Type: ApplicationFiled: January 21, 2011Publication date: January 10, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventor: Mika Aiko
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Publication number: 20130004665Abstract: The invention relates to a method for manufacturing liquid- guiding structural layers by flexo or gravure printing on a substrate sheet, using a printing solution, which alters the properties of the substrate sheet in such a way that liquid flow is prevented in the area of the structural layers. The penetrability of the printing layer into the substrate sheet can be regulated by the printing-cylinder pressure and the composition of the printing solution. In the method it is possible to use printing solutions consisting of economical polymers and a solvent. In terms of printing technology, the invention is compatible with existing printing machines and is thus highly suitable for mass production.Type: ApplicationFiled: December 15, 2010Publication date: January 3, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Kaisa Lehtinen, Juuso Olkkonen
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Publication number: 20130004684Abstract: The invention relates to the production of an optically detectable marking on a substrate. In the method, a substrate is taken, a printing ink containing a starch derivative in a solution form is printed on at least a selected first area and at least a selected second area is left unprinted, the printing ink is allowed to dry, in such a way that the starch derivative form a thermoplastic film in the said first area on the surface of the substrate, and an optically detectable marking is hot-pressed into the film. The invention also relates to a corresponding product. With the aid of the invention hot-pressable diffractive embossing is created at low temperatures, for example, on paper or board.Type: ApplicationFiled: March 3, 2011Publication date: January 3, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Tomi Erho, Soili Peltonen, Jouko Virtanen, Olli-Heikki Huttunen
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Publication number: 20120324366Abstract: A controller device (209) is enabled to provide a virtual user interface of an electrical device (201) to be remotely used and to generate control messages (241) for controlling the electrical device by providing the controller device with a proxy (211) of the electrical device. The proxy is a movable software package which can be used for representing the electrical device in the controller device. The proxy can be configured to have a limited time-to-live in the controller device and/or a surrounding system may have been arranged to send to the controller device a proxy removal message when the corresponding electrical device is leaving the system or a data transfer connection to it has otherwise been lost. Therefore, a sufficiently up-to-date awareness of the electrical devices and a capability of remotely using them can be maintained in the controller device.Type: ApplicationFiled: December 28, 2010Publication date: December 20, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventor: Juhani Latvakoski
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Patent number: 8329476Abstract: A sample port includes a body equipped with an internal cavity and two plungers arranged moveably in the internal cavity, whereby the plungers can be pressed against each other in the internal cavity, in order to compress a sample. At least one of the plungers can be moved into a reactor in order to collect a sample. The sample port also includes a sample chamber, which is formed by a space remaining between the internal cavity and the plungers. At least one sample-container connection is connected in connection with the internal cavity in order to collect the sample from sample chamber. In addition, the sample port has a filter which is provided to at least either plunger for separating a liquid component of the sample from a solid component and means for leading the liquid component of the sample out of the sample chamber.Type: GrantFiled: May 21, 2010Date of Patent: December 11, 2012Assignee: Teknologian Tutkimuskeskus VTTInventors: Juha-Pekka Pitkänen, Ari Hokkanen, Päivi Heimala, Jari Kauhaniemi, Kai Kolari, Pekka Savolahti, Jaana Uusitalo
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Publication number: 20120306683Abstract: This document describes a method and system for object localization. In accordance with the method an object (1) is illuminated by at least one first type of signal, and response of the signal is detected. In accordance with the invention the object (1) equipped with a transponder (2, 3) backscattering the first type of signal, the transponder (2, 3) is illuminated also by a second type of signal affecting to the backscattering frequency of the transponder (2, 3), and the backscattered signal from the transponder (2, 3) is detected in order to localize the object.Type: ApplicationFiled: October 19, 2010Publication date: December 6, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Ville Viikari, Heikki Seppä, Kaj Nummila, Timo Varpula
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Publication number: 20120286903Abstract: The invention relates to a micromechanical device comprising a semiconductor element capable of deflecting or resonating and comprising at least two regions having different material properties and drive or sense means functionally coupled to said semiconductor element. According to the invention, at least one of said regions comprises one or more n-type doping agents, and the relative volumes, doping concentrations, doping agents and/or crystal orientations of the regions being configured so that the temperature sensitivities of the generalized stiffness are opposite in sign at least at one temperature for the regions, and the overall temperature drift of the generalized stiffness of the semiconductor element is 50 ppm or less on a temperature range of 100° C. The device can be a resonator. Also a method of designing the device is disclosed.Type: ApplicationFiled: May 10, 2012Publication date: November 15, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Mika Prunnila, Antti Jaakkola, Tuomas Pensala
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Publication number: 20120287820Abstract: A method for optimizing data transfer in a wireless communication network is presented. A routing protocol is run for enabling data transmission devices (101-06) to form the wireless communication network. If routing information indicates that a route from a first data transmission device (101) to a second data transmission device (104) goes via at least one third data transmission (102, 103) device, it is checked whether a direct radio link (110) from the first data transmission device to the second data transmission device could be possible. If the direct radio link is possible, a message receivable by the at least one third data transmission device is sent. The message informs the third data transmission device that data transfer from the first data transmission device to the second data transmission device is direct radio communication and no forwarding actions are needed from the third data transmission device.Type: ApplicationFiled: January 12, 2011Publication date: November 15, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventor: Juhani Latvakoski
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Publication number: 20120280758Abstract: The invention concerns a novel bulk acoustic wave (BAW) resonator design and method of manufacturing thereof The bulk acoustic wave resonator comprises a resonator portion, which is provided with at least one void having the form of a trench which forms a continuous closed path on the resonator portion. By manufacturing the void in the same processing step as the outer dimensions of the resonator portion, the effect of processing variations on the resonant frequency of the resonator can be reduced. By means of the invention, the accuracy of BAW resonators can be increased.Type: ApplicationFiled: November 19, 2010Publication date: November 8, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Antti Jaakkola, Heikki Kuisma
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Patent number: 8302495Abstract: In the method, for collecting and diluting a gaseous sample disposed at a temperature substantially higher than the normal temperature from a sample space (2), a flow of sample is collected into a sampling tube (3); the flow of sample is introduced from the sampling tube into a sample channel (8) formed by a gas permeable first jacket (7); dilution gas is introduced into a dilution gas space (10) formed by a second jacket (9) enclosing the first jacket and connected by its end to the sampling tube, and further from it, through the first jacket into the sample channel; and heat is conducted from the sample space (2) into the dilution gas space (10) for warming up the dilution gas that comes into contact with the sampling tube (3). According to the invention, in the method, a substantially laminar protection flow, which encloses the flow of sample being released from the sampling tube (3) into the sample channel (8) and is disposed longitudinally to the sample channel, is formed from the warmed up dilution gas.Type: GrantFiled: January 12, 2007Date of Patent: November 6, 2012Assignee: Teknologian tutkimuskeskus VTTInventor: Hannu Vesala
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Publication number: 20120275119Abstract: The invention concerns a method of removing encapsulating material from encapsulated particles deposited onto a substrate. According to the method, a substrate is used which is capable of facilitating said removal of encapsulating material. The particles may be nanoparticles. In particular, the substrate-facilitated removal may result in sintering of the particles. The invention provides a novel way of functionalizing electronic structures using particulate matter and for conveniently producing e.g. printed electronics devices.Type: ApplicationFiled: November 15, 2010Publication date: November 1, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Mark Allen, Jaakko Leppäniemi, Tomi Mattila
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Publication number: 20120278890Abstract: An intrusion detection arrangement (101) for communication networks comprising a network activity observer (102) configured to monitor network traffic by the related traffic elements, such as data packets, thereof and to establish traffic profiles relative to the monitored traffic elements, such as one profile per each monitored traffic element, a misuse detector (104) configured to determine a first indication of a probability of the profiled traffic representing malicious activity through co-operation with a model repository (106) comprising at least one model characterizing a known intrusion attack, an anomaly detector (108) configured to determine, at least logically in parallel with the misuse detector, a second indication of a probability of the profiled traffic representing anomalous activity through cooperation with a model repository (110) comprising at least one model characterizing legitimate network activity, and a classifier (112) configured to operate on said first and second indications to geneType: ApplicationFiled: December 22, 2010Publication date: November 1, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Marko Määttä, Tomi Räty, Tapio Taipale, Jouko Sankala
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Publication number: 20120272789Abstract: By means of the invention, nanoparticles, which can be pure metal, alloys of two or more metals, a mixture of agglomerates, or particles possessing a shell structure, are manufactured in a gas phase. Due to the low temperature of the gas exiting from the apparatus, metallic nanoparticles can also be mixed with temperature-sensitive materials, such as polymers. The method is economical and is suitable for industrial-scale production. A first embodiment of the invention is the manufacture of metallic nanoparticles for ink used in printed electronics.Type: ApplicationFiled: November 10, 2010Publication date: November 1, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Ari Auvinen, Jorma Jokiniemi, Unto Tapper, Johanna Forsman, Johannes Roine
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Publication number: 20120275489Abstract: This document describes a method for measuring temperature. In accordance with the invention the temperature is determined from frequency variation of a local oscillator of a RFID tag (1).Type: ApplicationFiled: November 3, 2010Publication date: November 1, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Jerome Lamy, Heikki Seppä
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Publication number: 20120276596Abstract: The present invention relates to the fields of biomass technology, and more precisely to applications of packaging, and coating products for food and cosmetics. The present invention relates to a method of modifying a polymeric polysaccharide matrix and to a method of coating a product to impart new properties to the product. The present invention further relates to a modified polymeric polysaccharide matrix, to a product being coated with a modified polymeric polysaccharide matrix and uses thereof.Type: ApplicationFiled: December 15, 2010Publication date: November 1, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Jaakko Pere, Maria Smolander, Harry Boer
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Publication number: 20120239173Abstract: A method for controlling the configuration, such as access and/or one or more other features, of an application in an electronic device from the standpoint of a particular user, comprising obtaining an indication of the identity of the user determined based on sensor data associated with physical activity by the user, obtaining an indication of the physical activity identified based on the sensor data, and modifying or at least providing information enabling to modify the identified user's configuration of an application logic based on the identified activity and optionally other activity information derived utilizing the sensor data. Related mobile device, electronic arrangement and system are presented.Type: ApplicationFiled: November 23, 2010Publication date: September 20, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Arto Laikari, Miikka Ermes, Lauri Repokari, Teemu Haapala, Juhani Harvela
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Publication number: 20120235847Abstract: Described herein is a passive wireless resonating non-linear sensor that is typically based on a ferroelectric varactor. The sensor replies its data at an intermodulation frequency when a reader device illuminates it at two closely-located frequencies. Furthermore, described herein is a general intermodulation read-out principle for passive wireless sensors. A sensor utilizes a mixing element, such as a varactor and it can be equipped with a capacitive, inductive, or resistive sensor element. When the sensor is illuminated with signals with two frequencies it replies the sensor data at an intermodulation frequency.Type: ApplicationFiled: March 29, 2012Publication date: September 20, 2012Applicant: Teknologian tutkimuskeskus VTTInventors: Ville Viikari, Heikki Seppä, Tomi Mattila, Ari Alastalo, Mark Allen, Timo Varpula
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Publication number: 20120229226Abstract: The invention relates to a micromechanical resonator comprising a substrate (1) of first material (2), a resonator (3) suspended to the supporting structure (1), the resonator (3) being at least partially of the same material (2) as the supporting structure and dimensioned for resonation at a specific frequency f0, coupling means (5) for initiating, maintaining and coupling the resonation of the resonator (3) to an external circuit (6), and the resonator (3) including second material (4), the thermal properties of which being different from the first material (2). In accordance with the invention the resonator (3) includes the second material (4) located concentrated in specific places of the resonator (3).Type: ApplicationFiled: September 27, 2010Publication date: September 13, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Aarne Oja, Tuomas Pensala, Johanna Meltaus
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Publication number: 20120206710Abstract: A measurement device for the determination of the characteristics of the object's surface by means of the optical radiation, wherein a measurement device comprises an optical radiation source and a detector to receive the radiation reflected from the surface being measured. In addition, a measurement device comprises an emitted optical radiation processing unit, which is adjusted to split optical radiation emitted by an optical source into separate wavelengths and to direct said separate wavelengths to the object being measured in a direction, that differs from the normal of the surface being measured so, that at least the shortest and the longest wavelengths of said wavelengths are focused on different halves and different heights of the measured object's surface, in the direction of the normal of the surface being measured.Type: ApplicationFiled: October 7, 2010Publication date: August 16, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Karri Niemelä, Heimo Keränen
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Publication number: 20120206313Abstract: The invention relates to an antenna construction for an RFID chip for long ranges, which comprises a substrate, an antenna of conducting material supported by the substrate, and coupling means for coupling the antenna to a circuit. In accordance with the invention the antenna is a magnetic dipole, and the coupling means are formed by extensions of the antenna conductor.Type: ApplicationFiled: September 14, 2010Publication date: August 16, 2012Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventor: Kaarle Jaakkola