Patents by Inventor Jukka Virtanen
Jukka Virtanen 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: 11970670Abstract: A penetrating oil including isoalkane solvent and oil derived from biological sources and a method for producing the same, are disclosed. Use of a composition containing isoalkane solvent and oil derived from biological sources is further disclosed.Type: GrantFiled: November 18, 2019Date of Patent: April 30, 2024Assignee: NESTE OYJInventors: Jukka Hartikainen, Jouni Karttunen, Virpi Rämö, Jorma Virtanen
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Patent number: 10374799Abstract: A method, apparatus, system and computer program where an apparatus stores user specific credentials, receives a certificate via the communication interface from a certificate authority and stores the certificate in the memory. The apparatus further stores a private key and a public key in the memory and attempts authenticating of the apparatus to a ticket reader for accessing a service, by transmission of one or more messages, wherein the messages contain an authenticator that has at least one of the following: the certificate or its cryptographic derivative; one or more data items contained by the certificate or a cryptographic derivative thereof. The messages are prepared such that the public key is not recoverable from outside of the authenticator.Type: GrantFiled: April 13, 2011Date of Patent: August 6, 2019Assignee: Nokia Technologies OyInventors: Sandeep Tamrakar, Jan-Erik Ekberg, Jukka Virtanen, Nadarajah Asokan
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Publication number: 20140298016Abstract: A method, apparatus, system and computer program where an apparatus stores user specific credentials, receives a certificate via the communication interface from a certificate authority and stores the certificate in the memory. The apparatus further stores a private key and a public key in the memory and attempts authenticating of the apparatus to a ticket reader for accessing a service, by transmission of one or more messages, wherein the messages contain an authenticator that has at least one of the following: the certificate or its cryptographic derivative; one or more data items contained by the certificate or a cryptographic derivative thereof. The messages are prepared such that the public key is not recoverable from outside of the authenticator.Type: ApplicationFiled: April 13, 2011Publication date: October 2, 2014Applicant: Nokia CorporationInventors: Jan-Erik Ekberg, Sandeep Tamrakar, Jukka Virtanen, Nadarajah Asokan
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Patent number: 7180883Abstract: In packet data transmission method, a packet data connection is indicated with a connection identifier and the destination of the packet data connection is indicated with a destination identifier. A destination identifier is involved in the initialization of a transmission queue, at least one connection identifier is related to each transmission queue, and a set of proper connection identifiers is the union of the connection identifiers related to the initialized transmission queues. A data packet having a proper connection identifier is placed (504, 505) to the corresponding transmission queue. The method is characterized in that the initialization of a new transmission queue is triggered (506, 508) by a data packet not having a proper connection identifier and having a destination identifier and after a successful initialization of a new transmission queue the data packet that triggered the initialization is placed (509) to the new transmission queue.Type: GrantFiled: June 25, 2001Date of Patent: February 20, 2007Assignee: Nokia CorporationInventors: Jari Isokangas, Sinikka Sarkkinen, Jukka Virtanen
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Patent number: 6745032Abstract: A method, a mobile communication system and a controller controlling the use of the radio resources of the mobile communication system, by means of which it is decided when the optimization of the lu link between a mobile switching centre and the controller is triggered. In the method, history data is maintained (204, 205, 206, 214) on the roaming of the mobile station, at least on condition triggering the link optimization is set based on the history data, a check is made in response to updating the history data to see if the condition is fulfilled (207), and if the condition is fulfilled, the link optimization is triggered (208,209,210).Type: GrantFiled: October 2, 2000Date of Patent: June 1, 2004Assignee: Nokia CorporationInventors: Antero Alvesalo, Markku Verkama, Jukka Virtanen
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Publication number: 20020196798Abstract: In packet data transmission method, a packet data connection is indicated with a connection identifier and the destination of the packet data connection is indicated with a destination identifier. A destination identifier is involved in the initialization of a transmission queue, at least one connection identifier is related to each transmission queue, and a set of proper connection identifiers is the union of the connection identifiers related to the initialized transmission queues. A data packet having a proper connection identifier is placed (504, 505) to the corresponding transmission queue. The method is characterized in that the initialization of a new transmission queue is triggered (506, 508) by a data packet not having a proper connection identifier and having a destination identifier and after a successful initialization of a new transmission queue the data packet that triggered the initialization is placed (509) to the new transmission queue.Type: ApplicationFiled: May 8, 2002Publication date: December 26, 2002Inventors: Jari Isokangas, Sinikka Sarkkinen, Jukka Virtanen
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Patent number: 6347226Abstract: The invention relates to a cellular radio system comprising a mobile exchange, a first base station communicating with the mobile exchange through a data connection, said base station comprising at least a first transceiver unit for establishing a connection to the mobile stations on one or more channels allocated to it for transmitting telecommunications signals between the mobile stations and the mobile exchange, and control means for controlling the first transceiver unit. In order to save available resources, the control means comprise means for deactivating the first transceiver unit when the traffic capacity need is small in the coverage area of the first base station.Type: GrantFiled: November 26, 1999Date of Patent: February 12, 2002Assignee: Nokia Networks OyInventor: Jukka Virtanen
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Patent number: RE43108Abstract: In packet data transmission method, a packet data connection is indicated with a connection identifier and the destination of the packet data connection is indicated with a destination identifier. A destination identifier is involved in the initialization of a transmission queue, at least one connection identifier is related to each transmission queue, and a set of proper connection identifiers is the union of the connection identifiers related to the initialized transmission queues. A data packet having a proper connection identifier is placed (504, 505) to the corresponding transmission queue. The method is characterized in that the initialization of a new transmission queue is triggered (506, 508) by a data packet not having a proper connection identifier and having a destination identifier and after a successful initialization of a new transmission queue the data packet that triggered the initialization is placed (509) to the new transmission queue.Type: GrantFiled: June 25, 2001Date of Patent: January 17, 2012Assignee: Intellectual Ventures I LLCInventors: Jari Isokangas, Sinikka Sarkkinen, Jukka Virtanen