Patents by Inventor Christian Prehofer
Christian Prehofer 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: 11885900Abstract: A computer-implemented method for tracking a mobile device based on a series of motion measurements of said device comprises retrieving a topological map providing a graph of topological paths, wherein each topological path is associated with a corresponding path direction; statistically generating, on a virtual map, a plurality of particles around an estimated initial position of the mobile device, representing an initial uncertainty of said estimated initial position of the mobile device; determining, from said series of motion measurements, a measured displacement vector of the mobile device representing an estimated displacement direction and an estimated displacement distance of the mobile device; displacing each of said particles on the virtual map according to a randomized particle displacement vector which is derived from said measured displacement vector based on an uncertainty of the measured displacement vector and recording said particle displacement vector for each displaced particle; determiningType: GrantFiled: January 10, 2020Date of Patent: January 30, 2024Assignee: Technische Universität MünchenInventors: Georgios Pipelidis, Nikolaos Tsiamitros, Christian Prehofer
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Patent number: 11400957Abstract: A technology of controlling vehicle environment data transmission between a vehicle and a server is configured to receive mode information determining a mode among a monitoring mode, an urgency mode, or an efficiency mode. When determined to be operated in the monitoring mode, a control command for instructing the vehicle to perform a continuous monitoring or a regular monitoring of an environment of the vehicle is generated. When determined to be operated in the urgency mode, a control command for instructing the vehicle to transmit an increased amount of the vehicle environment data from the vehicle to the server is generated. When determined to be operated in the efficiency mode, a control command for instructing the vehicle to store the vehicle environment data and to selectively transmit the vehicle environment data based on at least two different data transmission standards is generated.Type: GrantFiled: August 8, 2020Date of Patent: August 2, 2022Assignee: DENSO CORPORATIONInventor: Christian Prehofer
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Publication number: 20220113366Abstract: A computer-implemented method for tracking a mobile device based on a series of motion measurements of said device comprises retrieving a topological map providing a graph of topological paths, wherein each topological path is associated with a corresponding path direction; statistically generating, on a virtual map, a plurality of particles around an estimated initial position of the mobile device, representing an initial uncertainty of said estimated initial position of the mobile device; determining, from said series of motion measurements, a measured displacement vector of the mobile device representing an estimated displacement direction and an estimated displacement distance of the mobile device; displacing each of said particles on the virtual map according to a randomized particle displacement vector which is derived from said measured displacement vector based on an uncertainty of the measured displacement vector and recording said particle displacement vector for each displaced particle; determiningType: ApplicationFiled: January 10, 2020Publication date: April 14, 2022Inventors: Georgios PIPELIDIS, Nikolaos TSIAMITROS, Christian PREHOFER
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Publication number: 20210056093Abstract: A technology for supporting an event-based transaction using a continuous data stream relating to a vehicle includes: continuously acquiring a data stream of input data relating to the vehicle or relating to an environment of the vehicle from at least one device, the input data to be used in a transaction; calculating a consistency of the input data, errors in the input data, errors in an interpretation of the input data in relation to the transaction, or errors in relation to the data stream of the input data; and improving the input data to be used in the transaction by correcting or adding information before executing the transaction.Type: ApplicationFiled: August 21, 2020Publication date: February 25, 2021Inventor: Christian PREHOFER
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Publication number: 20210046950Abstract: A technology of controlling vehicle environment data transmission between a vehicle and a server is configured to receive mode information determining a mode among a monitoring mode, an urgency mode, or an efficiency mode. When determined to be operated in the monitoring mode, a control command for instructing the vehicle to perform a continuous monitoring or a regular monitoring of an environment of the vehicle is generated. When determined to be operated in the urgency mode, a control command for instructing the vehicle to transmit an increased amount of the vehicle environment data from the vehicle to the server is generated. When determined to be operated in the efficiency mode, a control command for instructing the vehicle to store the vehicle environment data and to selectively transmit the vehicle environment data based on at least two different data transmission standards is generated.Type: ApplicationFiled: August 8, 2020Publication date: February 18, 2021Inventor: Christian PREHOFER
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Patent number: 10311446Abstract: In some examples, context information is determined. The context information is associated with a user and based on information of a communication device associated with the user. The context information is obfuscated based on a user information, such privacy policy, user profile, user preferences, user activity, and/or any combination of the aforementioned, associated with the user. In other examples, the context information is determined based on a user location and/or user information.Type: GrantFiled: December 5, 2008Date of Patent: June 4, 2019Assignee: Nokia Technologies OyInventors: Christian Prehofer, Sasu Tarkoma
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Patent number: 9803986Abstract: An approach is provided for generating trace data corresponding to one or more mobile devices detected within a premises, where the trace data specifies movement of the mobile device(s) within the premises. A map customizing platform utilizes the user traces to determine accessibility information about areas within the premises using connecting elements of the premises.Type: GrantFiled: November 24, 2009Date of Patent: October 31, 2017Assignee: Core Wireless Licensing S.a.r.l.Inventor: Christian Prehofer
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Patent number: 9154301Abstract: Location information is provided with an authenticator in order to enable future providing of an authentication to a service or application making use of the location information. The authenticator is based on a cryptographic method known by a provider and recipient of and also optionally based on position data provided by the location information. The authenticator is carried as a watermark in the location information so that the location information can be used by prior existing systems and enables the authentication of the location information in compatible authentication enabled systems. On receiving the location information, an authentication enabled recipient obtains the authenticator from the location information and checks using the authenticator whether use of the location information may be allowed.Type: GrantFiled: April 22, 2008Date of Patent: October 6, 2015Assignee: Nokia CorporationInventors: Christian Prehofer, Sasu Tarkoma
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Patent number: 8966390Abstract: A method and apparatus are provided for visually indicating location probability, particularly in a multi-level, three-dimensional environment. In general, a method of a graphical user interface may be provided that displays the uncertain location of a device within an environment in an easily discernable format. A method may be provided that includes providing for transmission of a location request from a first location within an environment and receiving at least two potential locations that are within the environment. The method may further include providing for display of a graphical representation of the environment including visual indicators of the potential locations within the graphical representation of the environment and receiving an indication that a potential location corresponds to the first location. Each visual indicator may convey the accuracy confidence level for each respective location.Type: GrantFiled: December 29, 2009Date of Patent: February 24, 2015Assignee: Nokia CorporationInventor: Christian Prehofer
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Patent number: 8797853Abstract: An access control function (ZF) which checks a requested use (NU) of a service (DI) by considering an available capacity Cv which is detected by considering the entire transmission capacity (G) and is available to an access node (ZK) for transmitting traffic flows (VS) to the communications network. The service is carried out in at least one communications network (KN) that is provided with an entire transmission capacity (G). The access node (ZK) is allocated to the access control function (ZF) which checks the requested use (NU) of the service (DI).Type: GrantFiled: March 7, 2001Date of Patent: August 5, 2014Assignee: Siemens AktiengesellschaftInventors: Rudolf Bitzinger, Christian Prehofer, Viktor Ransmayr
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Patent number: 8538688Abstract: A method, apparatus, system, and computer program product are disclosed for creating and displaying shortcuts and landmarks on a navigational map. The embodiments include storing context data in a mobile wireless device, the context data including at least one of travel class of a shortcut path, limits of a shortcut path, or restrictions of a shortcut path. The shortcuts may be categorized by their context in travel classes such as car, bike, pedestrian, pram, wheelchair, walker, blind pedestrian, disabled pedestrian, or the like. The embodiments register in the mobile wireless device a starting location for a shortcut path and record locations of the device as the device moves along the shortcut path. The embodiments receive signals describing a landmark at a landmark location along the shortcut path, including digital photographs, descriptive text and voice clips. The embodiments then form in a shortcut mapping file the recorded shortcut path, information about the landmark, and the context data.Type: GrantFiled: November 18, 2008Date of Patent: September 17, 2013Assignee: Nokia CorporationInventor: Christian Prehofer
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Patent number: 8218511Abstract: In communication system (SYS) including a first network (IN) with at least a first terminal node (CN), and an ad hoc network (AHN) with at least a second terminal node (RN1-RN4; MN), and a gateway (GW), transmission information (TI) is forwarded between the first terminal node (CN) of the first network (IN) and the second terminal node (RN1-RN4; MN) of the ad hoc network (AHN). In order to perform a more accurate flow control of transmission information (TI) inside the mobile ad hoc network (AHN), the gateway (GW) and the second terminal node (MN) exchange transmission information (TI) as well as acknowledgement information (ACTAN, ACTAN?, ACTAN?). Preferably, the exchange of the transmission information (TI) and the acknowledgement information (ACTAN, ACTAN?, ACTAN?) is carried out through a tunnel link (TUN1) established between the gateway (GW) and the second terminal node (MN).Type: GrantFiled: October 24, 2003Date of Patent: July 10, 2012Assignee: NTT DoCoMo, Inc.Inventors: Christian Prehofer, Philipp Hofmann
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Patent number: 8174979Abstract: According to the invention, in order to control the access of traffic streams (VS) to the communications network (KN), an available capacity (VK), placed at the disposal of an access node (ZK) for transferring traffic streams (VS) to said communications network (KN), is determined from an access node (ZK) of the communications network (KN), taking into account the total transfer capacity (G) of the communications network (KN). The available capacity (VS) is notably redetermined whenever the routing information (RI) of the access node (ZK) is modified. An access control of this type guarantees the quality of service required in a connectionless communications network.Type: GrantFiled: March 28, 2008Date of Patent: May 8, 2012Assignee: Nokia Siemens Networks GmbH & Co. KGInventors: Joachim Charzinski, Thomas Engel, Christian Prehofer, Rainer Sauerwein
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Patent number: 8046429Abstract: A system and method for exchanging components between platforms is described. As a user terminal changes location or preferences, the user terminal may be provided with a new platform that supports desired services. A method and system that relates to migrating one or more components that provide composite services from one communication platform to another is described. A user terminal may receive one or more composite services provided by two or more components existing on platform. As the user terminal switches from one platform to another, the platforms attempt to provide the same services to the user with little to no interruption. Various aspects relate to shifting one or more components from the first platform to the second platform to provide local support for the services desired by the user terminal.Type: GrantFiled: June 25, 2007Date of Patent: October 25, 2011Assignee: Nokia CorporationInventors: Sasu Tarkoma, Christian Prehofer
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Patent number: 8023465Abstract: A method for performing a handover in a mesh network for a plurality of nodes (A, A?, B) of said mesh network from a first access point (AP1) to a second access point (AP2), whereas said plurality of nodes (A, A?, B) forms a tree of nodes, said tree comprising a root node (B) and one or more further nodes (A,A?) connected to said root node either directly or via intermediate nodes, and said handover being performed for said tree of nodes in a coordinated fashion, said method comprising: forwarding to said members of said tree (A, A?, B) information about said second access point (AP2) and timing information to enable a coordinated handover of said nodes of said tree; switching said root node (B) and said further (A,A?) nodes from said first access point to said second access point according to said timing information.Type: GrantFiled: June 22, 2006Date of Patent: September 20, 2011Assignee: NTT DoCoMo, Inc.Inventor: Christian Prehofer
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Publication number: 20110161855Abstract: A method and apparatus are provided for visually indicating location probability, particularly in a multi-level, three-dimensional environment. In general, a method of a graphical user interface may be provided that displays the uncertain location of a device within an environment in an easily discernable format. A method may be provided that includes providing for transmission of a location request from a first location within an environment and receiving at least two potential locations that are within the environment. The method may further include providing for display of a graphical representation of the environment including visual indicators of the potential locations within the graphical representation of the environment and receiving an indication that a potential location corresponds to the first location. Each visual indicator may convey the accuracy confidence level for each respective location.Type: ApplicationFiled: December 29, 2009Publication date: June 30, 2011Applicant: Nokia CorporationInventor: Christian Prehofer
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Publication number: 20110121963Abstract: An approach is provided for generating trace data corresponding to one or more mobile devices detected within a premises, where the trace data specifies movement of the mobile device(s) within the premises. A map customizing platform utilizes the user traces to determine accessibility information about areas within the premises using connecting elements of the premises.Type: ApplicationFiled: November 24, 2009Publication date: May 26, 2011Applicant: Nokia CorporationInventor: Christian PREHOFER
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Publication number: 20100146583Abstract: In some examples, context information is determined. The context information is associated with a user and based on information of a communication device associated with the user. The context information is obfuscated based on a user information, such privacy policy, user profile, user preferences, user activity, and/or any combination of the aforementioned, associated with the user. In other examples, the context information is determined based on a user location and/or user information.Type: ApplicationFiled: December 5, 2008Publication date: June 10, 2010Inventors: Christian Prehofer, Sasu Tarkoma
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Publication number: 20100125406Abstract: A method, apparatus, and computer program product are provided for providing point of interest navigation services. An apparatus may include a processor configured to receive a request for navigation instructions comprising an origin location and a destination location. The processor may be further configured to determine a route between the origin location and the destination location. The processor may additionally be configured to determine one or more points of interest along the route based at least in part upon prior usage data associated with each point of interest. The prior usage data may be received and aggregated from users of a navigation system. The processor may also be configured to provide navigation instructions comprising the one or more determined points of interest. Corresponding methods and computer program products are also provided.Type: ApplicationFiled: November 19, 2008Publication date: May 20, 2010Inventor: Christian Prehofer
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Publication number: 20100125409Abstract: A method, apparatus, system, and computer program product are disclosed for creating and displaying shortcuts and landmarks on a navigational map. The embodiments include storing context data in a mobile wireless device, the context data including at least one of travel class of a shortcut path, limits of a shortcut path, or restrictions of a shortcut path. The shortcuts may be categorized by their context in travel classes such as car, bike, pedestrian, pram, wheelchair, walker, blind pedestrian, disabled pedestrian, or the like. The embodiments register in the mobile wireless device a starting location for a shortcut path and record locations of the device as the device moves along the shortcut path. The embodiments receive signals describing a landmark at a landmark location along the shortcut path, including digital photographs, descriptive text and voice clips. The embodiments then form in a shortcut mapping file the recorded shortcut path, information about the landmark, and the context data.Type: ApplicationFiled: November 18, 2008Publication date: May 20, 2010Applicant: Nokia CorporationInventor: Christian PREHOFER