Abstract:
The receiving circuit has a sampler (4) for converting the received message signal (1) into a sampled signal (5). A decoder (6) decodes the sampled signal and a checking unit (7) detects error in the decoded signal. A control unit (11) controls the sampling method as a function of error-check on the sampled signal. An Independent claim is also included for message signal receiving method.
Abstract:
The invention relates to active star coupler based network handling of redundancy in the physical layer by transmitting a message to both regular and redundant links. In an error free case, the message is forwarded by the regular interface, while the redundant link, is blocked. Each interface is equipped with link failure detection logic. If a link failure is detected, an incoming message is blocked and the affected interface controls the interface connected to the redundant link to take over message forwarding. If the link recovers, the regular interface takes over forwarding responsibility and the redundant link is disabled.
Abstract:
The invention relates to a network comprising a plurality of intercoupled network nodes. Controlled by a bus guardian the network nodes transmit messages during a respectively assigned time slot and receive messages from other network nodes outside this time slot. Each network node comprises a test signal generator which delivers a test signal outside the respectively assigned time slot, and includes a test signal detector which detects outside the respective time slot, after receiving a test signal from at least another network node, that there is a defective circuit portion in the assigned network node and/or in at least another network node.
Abstract:
The present invention refers to a method and a bit stream decoding unit for bit stream decoding. The bit stream comprises a number of consecutive samples. In order to provide a possibility of fast and in particular reliable decoding of the bit stream, it is suggested that a detection window comprising a number of samples is defined; the detection window is positioned at certain positions on the bit stream in order to comprise certain samples with respective sample values; a majority voting is applied to the sample values comprised by the detection window; and according to the result of the majority voting the bit stream is decoded and respective bit values are generated.
Abstract:
The present invention refers to a method and a bit stream decoding unit for bit stream decoding. The bit stream comprises a number of consecutive samples. In order to provide a possibility of fast and in particular reliable decoding of the bit stream, it is suggested that a detection window comprising a number of samples is defined; the detection window is positioned at certain positions on the bit stream in order to comprise certain samples with respective sample values; a majority voting is applied to the sample values comprised by the detection window; and according to the result of the majority voting the bit stream is decoded and respective bit values are generated.
Abstract:
A network node (1) with a communication unit (2), which is provided for the implementation of a communication protocol for the purpose of communication with other network nodes via a communication medium (5), and with a bus monitor (3), which, mutually independently, each implement an access time schedule contained in a configuration data record, and which each make available, in accordance with the access time schedule, a release signal for a bus driver (4) provided in the network node (1), which evaluates these two signals and, in the event that the two release signals do not coincide, blocks the access of the network node (1) to the communication medium (5).
Abstract:
The network has a number of network nodes and a star node allowing direct communication between at least 2 network nodes and provided a number of star interfaces, each having an activity detector (14), for detecting activities within the information signals received from the associated network nodes and 2 switch elements, respectively used for feeding information from a network node to a different star interface or for feeding information from a different interface to an associated network node. An Independent claim for a star node for direct coupling of at least 2 network nodes is also included.
Abstract:
The present invention refers to a method and a bit stream decoding unit for bit stream decoding. The bit stream comprises a number of consecutive samples. In order to provide a possibility of fast and in particular reliable decoding of the bit stream, it is suggested that a detection window comprising a number of samples is defined; the detection window is positioned at certain positions on the bit stream in order to comprise certain samples with respective sample values; a majority voting is applied to the sample values comprised by the detection window; and according to the result of the majority voting the bit stream is decoded and respective bit values are generated.
Abstract:
The invention describes a method for the monitoring and management of data traffic in a communication system with several communication nodes which communicate via interfaces monitored by a bus monitor, comprising the following steps: a) provision of a predefined communication time schedule for all communication nodes, b) initialization of the bus monitor, c) synchronization of the communication time schedule of the bus monitor with the predefined communication time schedule executed by the communication nodes in a distributed arrangement, the synchronization taking place on the basis of activities observed at the interfaces, d) monitoring of the activities of the communication nodes by the bus monitor, e) comparison of the activities with the predefined communication time schedule, and f) deactivation of the interface for any communication node for which an activity not compatible with the predefined communication time schedule has been detected. A circuit arrangement and its use are also described.
Abstract:
A dual-channel network with in each case one communication controller (2, 6) for each of the two channels (A, B). In order to ensure that the two channels (A, B) operate on a temporally matched basis, an exchange of current states ("ready, "abort") takes place via an external or an on-chip interface (l a, 1b). The cold start operation is carried out only if, and so long as, both communication controllers are in the "ready" state.