Robert Boschgmbh

Andreas Mueller

Florian Hartwich

Arthur Mutter

Norbert Wegner

Timo Lothspeich

Matthias Ludwig

Juergen Rapp

Volker Blaschke

Harald Eisenhardt

Johannes Von Hoyningen-Huene

Armin Hassdenteufel

Andreas Schiel

Christian Acker

Guillaume Boulch

Steffen Walker

Jorge Guajardo Merchan

Simon Weissenmayer

Christian Horst

Heiko Stahl

Detlef Lauk

Franz Bailer

Anton Pfefferseder

Matthew Lewis

Thomas Hansen

Andreas Baumann

Thorsten Huck

Pierre Harnist

Mario Huesges

Harold Bitzer

Michael Pfeil

Andreas Pape

Andreas Sommerer

Karl-Bernhard Lederle

Bernd Becker

Thorsten Schwepp

Thomas Keller

Florian Klingler

Bjoern Kasper

Ralf Schellin

Monique Duengen

Ingo Dwertmann

Ludger Adrian

Steven Dietrich

Gerald Maier

Tobias Gruber

Daniel Barisic

Nobert Wegner

Christoph Burger-Scheidlin

Michael Schermann

Regina Neigel

Daniel Sanwald

Ralf Gal

Bernd Kilast

Christian Franz

Gerald Trumpp

A method for operating a primary communication device designed to transmit data packets via a transmission medium to at least one secondary communication device, said method comprising the following steps: at least temporarily modifying a transmission configuration for transmitting data packets; and transmitting at least a first data packet to the at least one secondary communication device using the transmission configuration.

Method for operating a primary communication device, involving modification of the transmission configuration

A method for operating a user station for a mobile communication system, which includes at least one master station, using code division multiple access (CDMA), including the following steps: ascertaining a first timing advance value for a data transmission from the user station to the master station as a function of first pieces of position information characterizing a position of the user station, transmitting first data to the master station using the first timing advance value.

User station for a mobile communication system and method for its operation

A reflection attenuation device for a bus of a bus system and a method for attenuating reflections during a data transfer in a bus system. The reflection attenuation device may close off a free end of bus lines of the bus in a transceiver device of a user station of the bus system. Alternatively, the reflection attenuation device may be connected to a branch point of the bus which is a star point or is used to connect a user station to the bus. Thus, bus users in a vehicle trailer are also connectable to the bus system of the vehicle, as needed. The reflection attenuation device includes at least one pair of electrical semiconductor components connected in parallel, and at least one capacitor that is connected in series to the pair of electrical semiconductor components connected in parallel, for attenuating reflections on a bus line of the bus.

Reflection attenuation device for a bus of a bus system, and method for attenuating reflections during a data transfer in a bus system

Disclosed is a method for generating a secret or key in a network having first and second subscribers and a transmission channel therebetween. The first and second subscribers generating first and second sequences of subscriber values to achieve synchronous transmission; and the first and second subscriber each generate a common secret, the first subscriber doing so based on information about the first sequence and a superposition of the second sequence onto the first sequence on the transmission channel, and the second subscriber doing so based on information about the second sequence and the superposition of the second sequence of subscriber values onto the first sequence of subscriber values. At certain intervals or in accordance with a detected sequence of superposed values, the first or second subscriber outputs at least one filler value onto the transmission channel such that an edge change or change in values occurs on the transmission channel.

Method for generating a secret or a key in a network

A method for authenticating a terminal device in a communication network, wherein a communication connection is established between the terminal device and a network access node of the communication network; upon a sensory stimulation of the terminal device, the terminal device performs a recording of sensor data; the terminal device transmits the sensor data via the communication connection to the network access node; and the terminal device is authenticated by the network access node as a function of a confirmation or rejection of a playback of the sensor data.

Method and apparatus for authenticating a terminal device in a communication network

The present invention relates to a communications system () with at least one node (), a control instance () and a shared communications medium (). The at least one node is designed to receive messages that are or were transmitted in a first transmission mode. This first transmission mode has a lower data transmission rate and/or transmission complexity than a second transmission mode. The control instance () determines a first of the nodes in order to transmit data thereto in the second transmission mode or in order to release the shared communications medium () for the first node to transmit data in the second transmission mode. The control instance communicates this to the first node by means of a message (). This message is transmitted in the first transmission mode.

Communications system with control of access to a shared communications medium

The invention relates to a method for operating a communication system () having a plurality of communication units () which are connected to a communication medium (), wherein access to the communication medium () is granted to the communication units () in a predefined order, wherein, after the end of a standby mode, a communication unit () checks whether it is granted access and changes to the standby mode again for a pause duration (T, T) until access is likely to be granted to it again if the communication unit () does not require access to the communication medium () or is not granted access.

Energy-saving operation of a communication system

A fan unit (), in particular for an air conditioning system of a motor vehicle, comprising an electric motor () for driving a fan wheel (), an electronic device () which generates waste heat and provides electrical current to the electric motor () and a fan housing (), wherein the fan wheel () is disposed together with the electric motor () in an air guiding region () delimited by the fan housing (). Provision is thereby made for the electronic device () to be fastened to the side of the fan housing () which faces away from the air guiding region () in a heat transferring manner so that a heat transfer connection is formed between the electronic device () and the air guiding region ().

Fan unit with heat transferring connection

A method for generating a secret or a key in a network, the network including at least one first and one second member and a transmission channel between at least the first and the second members. The first and second members being able to place at least one first value and one second value on the transmission channel. The first member causes a first member value sequence and the second member causes a second member value sequence to be transmitted over the transmission channel largely synchronously with each other. The first member and the second member generate a shared secret or a shared key on the basis of information about the first member value sequence and the second member value sequence and on the basis of an overlap value sequence resulting from the overlap of the first member value sequence with the second member value sequence on the transmission channel.

The invention relates to a communications method that comprises the step of sending a query message from a central entity to at least one node. For every queried node, the central entity determines a node-specific time window based on a node-specific response time. The central entity filters out a response message, sent from the queried node, from the signals received during this time window. Based on the node-specific time window, the central entity assigns the response message to the queried node. The invention also relates to a computing unit that is configured to operate as a central entity, to a communications system, as well as to a computer program and a computer-readable storage program with said computer program.

Communications method in a communications system

In a method for generating a secret key, a first node which is connected via a transmission channel to a second node estimates a variability of the transmission channel with regard to at least one physical channel parameter of the transmission channel, selects a sampling rate for the channel parameter as a function of the variability, generates a bit sequence by sampling the channel parameter at the selected sampling rate, and adjusts the bit sequence with the second node.

Method and device for generating a secret key

A method for determining a cryptographic key for a MEMS device includes identifying physical properties for the device. A feature vector having a plurality of values is determined. Each of the values correspond to different physical properties. The cryptographic key is determined from the feature vector. The cryptographic key can be determined using a fuzzy extractor. The cryptographic key can be determined using different feature vectors corresponding to different channels in a device or different MEMS structures in the device.

System and method for cryptographic key identification

A method for generating a key in a network. The network includes at least one first user and one second user having a secured communication link to one another, and a third user, to which a secured communication link is to be established. The first user and the third user each generate a first partial value sequence from properties of the transmission channel between the first user and the third user. The second user and the third user each generate a second partial value sequence from properties of the transmission channel between the second user and the third user. In a secured part of the network, which includes at least the first and the second user, but not the third user, the key is ascertained from at least the first partial value sequence of the first user and the second partial value sequence of the second user. The key is also generated in the third user from at least the first partial value sequence and the second partial value sequence.

Method for generating a key in a network and user on a network and network

In an electronic commutation method in direct current electric motors which are controlled by pulse width modulation of the energization which takes place periodically with positive and negative current values and intermediate energization pauses, the counter-induction voltage is measured, wherein the zero crossing of the counter-induction voltage is determined by means of the point of intersection of the envelope to the counter-induction voltage with the zero line. The pulse width modulation of the energization is changed if the zero crossing is covered by positive or negative current values of the energization.

Electronic commutation method in direct current electric motors

Fan system () for a cooling system of an internal combustion engine, having an electric machine () and an impeller wheel (), wherein the electric machine () comprises a pole housing (), which is rotatably mounted by means of a bearing (), wherein the impeller wheel () is coupled to the pole housing () of the electric machine (), wherein the impeller wheel () has a first engagement element (), and the pole housing () has a second engagement element () which corresponds to the first engagement element (), wherein the two engagement elements () engage one in the other in such a way that they form a bearing seat () for the bearing () of the pole housing ().

Fan system for a cooling system of an internal combustion engine

Growing community of inventors

Waiblingen, Germany

Andreas Mueller