Abstract:
A packet switching device has several input- and output-ports and at least one switching unit (switch card) (3-5) consisting of a coupling matrix and a division/distribution unit (9) for controlling the coupling matrix (8), in which the division/distribution unit is provided for generating a state-matrix (11) whose rows each correspond to an input port, and whose columns each correspond to an output port. The state-matrix contains elements which each represent a weighting of a linkage between an input port and an output port. The division/distribution unit (9) is provided with a parallel working calculation instruction on the basis of one or more groups of columns of the state-matrix for building a first decision matrix, which consists of several accepted linkages. Independent claims are for given for the following: (1) A switching unit for a packet switching device, (2) A division or distribution unit for controlling the coupling matrix, (3) A switching method for a packet switching device.
Abstract:
The packet switching device has at least one line unit (1,2) containing an output port with a port controller (6,7) for storing and arranging packets in queues and for generating at least one feedback information unit for information to an allocation unit (9) regarding output port queue states and at least one switching unit (3-5) consisting of a coupling matrix (8) and an allocation unit for controlling the coupling matrix. Independent claims are also included for the following: (a) a line unit (b) and a switching unit.
Abstract:
The invention relates to a security system for wireless networks, comprising a first portable unit ( 1 ) with a memory ( 3 ) for storing a worldwide unambiguous key record ( 4 ) provided for short-range information transmission of the key record ( 4 ). At least one wireless apparatus ( 2 ) of the network is provided with a receiving unit ( 7 ) comprising a receiver ( 9 ) for receiving the key record ( 4 ) and an evaluation component ( 11 ) of the apparatus for storing, processing and/or passing on the key record ( 4 ) or a part of the key record to a second component. Due to the key record, the apparatuses in the wireless network acquire a secret shared key by means of which the encryption and decryption of the transmitted useful data and/or the authentication is performed. In accordance with an optional embodiment of the invention, the key record in the portable unit can be derived from biometric characteristics of a user.
Abstract:
System for configuring and powering a wireless batteryless device, the system comprising: a wireless batteryless device (A) comprising : a built-in harvester (12) for harvesting energy from a first energy source, for example ambient energy, means for communicating wirelessly, - and an external device (B) comprising : - a second power source (16), - means (17) for converting energy supplied by the second power source into energy suitable for being harvested in the harvester of the batteryless device, means (18) for wirelessly supplying the batteryless device with the converted energy via the built-in harvester, and means for communicating with the batteryless device. The invention also relates to an external device therefore, and a method for configuring and powering a batteryless device.
Abstract:
The invention relates to a method of accommodating a network apparatus (2) in an existing network (A), wherein a user (1) supplies characteristic biometrical data to the apparatus (2) as well as to the apparatuses of the network (A) via a biometry module. A network identifier and/or a configuration key can then be derived from the biometrical data. The network identifier can ensure that the new apparatus (2) is correctly assigned to the desired network (A), also when there are still other networks (B) within its range. The configuration key can be used for securing the information exchanged during the configuration phase from interception.
Abstract:
The invention relates to a networked control system including comprising a resource limited device (102) and an assigned proxy device (104). The resource limited device (102) comprises a device logic (122) for providing a change notification message to the assigned proxy device (104) on a change of a device state of the resource limited device, wherein each device state of the resource limited device (102) is defined by a corresponding state variable and wherein the change notification message comprises a state variable corresponding to an actual device state of there source limited device (102). The assigned proxy device (104) comprises means (142) for receiving a change notification message from an assigned resource limited device (102), wherein the change notification message comprises a state variable which defines an actual device state of the resource limited device and means (144) for distributing a state variable change notification, comprising the state variable which defines the actual device state of the resource limited device, within the networked control system according to requirements of a control application (162) of the networked control system.