Abstract: A test mode setting circuit may include: a first test mode signal generation unit operated by a first supply voltage, the first test mode signal generation unit suitable for activating a first test mode signal at a first voltage level in a state where mode setting is completed, the first test mode signal corresponding to a test code among a plurality of first test mode signals; and a second test mode signal generation unit operated by a second supply voltage, the second test mode signal generation unit suitable for latching the first test mode signal at a second voltage level and generating the latched first test mode signal as a second test mode signal when a first supply voltage is reset.

Abstract: A semiconductor system includes a first semiconductor device configured to output command addresses; and a second semiconductor device configured to generate a first control signal including a pulse controlled in its pulse width in synchronization with a toggling time of a bank active signal for selecting a bank to be activated in an active operation in response to the command addresses, a second control signal enabled in response to the bank active signal, and an internal voltage in response to the first and second control signals.

Abstract: A semiconductor device includes: an initialization block suitable for initializing an internal voltage terminal based on a first voltage of a first voltage terminal; a feedback block suitable for generating a feedback voltage based on an internal voltage of the internal voltage terminal; a comparison block suitable for comparing the feedback voltage with a reference voltage to generate a comparison signal; a driving block suitable for driving the internal voltage terminal with a second voltage of a second voltage terminal in response to the comparison signal; and a leakage current prevention block suitable for selectively blocking a current path passing through the internal voltage terminal, the driving block and the second voltage terminal in response to a power-up signal corresponding to the first voltage.

Abstract: A semiconductor system includes a first semiconductor device configured to output command addresses; and a second semiconductor device configured to generate a first control signal including a pulse controlled in its pulse width in synchronization with a toggling time of a bank active signal for selecting a bank to be activated in an active operation in response to the command addresses, a second control signal enabled in response to the bank active signal, and an internal voltage in response to the first and second control signals.

Abstract: Disclosed herein are an apparatus and method for discovering a communication entity. The apparatus for discovering a communication entity includes a list generation unit for generating a list of connection target Data Readers (DRs), a counter generation unit for generating a counter including information about a number of the connection target DRs, and a discovery message communication unit for establishing communication connections to the connection target DRs based on the list and the counter. The discovery message communication unit includes a transmission unit for transmitting a DR discovery message including data topic information or possible service quality information to each of the connection target DRs, and a reception unit for receiving a Data Writer (DW) discovery message including data topic information or possible service quality information from each of the connection target DRs.

Abstract: A gateway for interconnection of heterogeneous middleware includes a high level architecture (HLA) federate; a data distribution service (DDS) participant; a clock federate for a wall clock; and a time manger configured to synchronize times of the HLA federate and the DDS participant to the wall clock provided by the clock federate.

Abstract: Disclosed herein are a multicast apparatus and method. In the multicast method, a multicast apparatus searches one or more communication objects in a distributed network environment. Multicast data is received from a sender-side communication object among the one or more communication objects. A polling message is received from the communication object that transmitted the multicast data. A response message corresponding to the polling message is sent. It is determined whether a transmission error has occurred between communication objects based on results of sending of the response message, and multicasting is performed based on results of determination.

Abstract: Provided herein a method and apparatus for generating a data distribution service application, the method including syntax-analyzing an IDL (interface description language) file; determining a topic model to be used in the data distribution service application based on a result of the syntax-analyzing of an IDL (interface description language) file; receiving QoS information and determining a QoS model by a QoS (quality of service) modeler; determining a DDS application model based on the topic model and QoS model by a DDS (data distribution service) application modeler; and generating a source code based on the topic model, QoS model and DDS application model.

Abstract: Provided herein a method and apparatus for determining a QoS (quality of service) profile in the data distribution service, the method including determining network environment information; and determining the QoSProfile based on the network environment information, wherein the QoSProfile includes a QoSFunction, QoSMatching, QoSStatement, QoSConstraint, and QoSCharacteristic.

Abstract: Disclosed is a modularizing apparatus modularizing a function module in DDS middleware, including: a DCPS module providing an interface with an application program; and a library module initializing and creating the function module, classifying the created function module for each function and storing the classified function module, and providing a function module corresponding to a request by the DCPS module to the DCPS module.

Abstract: Disclosed are a computing apparatus for providing an entity search means so as to perform data communication between different entities of a Data Distribution Service (DDS) in a multi-network domain environment, and a method of operating the same. A method of operating a computing system for a Data Distribution Service (DDS) service in a DDS system including a first network domain and a second network domain includes: searching for search information of DDS entities included in the first network domain; determining at least a DDS entity among the DDS entities as a representative entity of the first network domain; and providing the search information of the DDS entities to a representative entity of the second network domain through the representative entity of the first network domain.

Abstract: A communication connecting method between nodes through a network, includes: storing communication connection information acquired through searching for communication entities of other nodes; determining whether communication connection information on a communication entity of a connection target node exists by searching for the stored communication connection information; and configuring communication connection with the communication entity of the connection target node based on the determination result.

Abstract: Provided herein is a method and apparatus for generating a virtual object for DDS (Data Distribution Service) communication in multiple network domains, the apparatus including: a communicator for receiving EDP (Endpoint Discovery Protocol) information on a remote Endpoint from a remote network domain separated physically or logically; and a virtual object generator for matching the EDP information on the remote Endpoint and information included in the remote network domain prestored in a database, and for generating a virtual object corresponding to the remote Endpoint.

Abstract: Provided are a network node and a method of performing discovery, which may stably perform discovery without delay or crash of a network at the time of initial discovery in a large-scale network. The network node operated in a distributed network includes a discovery performing unit that determines a discovery back-off time that is a transmission wait time of a discovery message based on levels of priority of the network node, and a communication unit that transmits the discovery message using the discovery back-off time.

Abstract: Provided is a cruise control system and method. A vehicle cruise control system collects state information of components inside and outside a vehicle, state information of a road on which the vehicle is provided, and drive pattern information of a driver of the vehicle, analyzes a mileage amount and an exhaust gas emission amount of the vehicle based on the collected state information of the components, the road state information, and the drive pattern information, calculates a cruise control speed based on the analysis result, and controls the vehicle to run at the cruise control speed.

Abstract: Disclosed herein are an apparatus and method for discovering a communication entity. The apparatus for discovering a communication entity includes a list generation unit for generating a list of connection target Data Readers (DRs), a counter generation unit for generating a counter including information about a number of the connection target DRs, and a discovery message communication unit for establishing communication connections to the connection target DRs based on the list and the counter. The discovery message communication unit includes a transmission unit for transmitting a DR discovery message including data topic information or possible service quality information to each of the connection target DRs, and a reception unit for receiving a Data Writer (DW) discovery message including data topic information or possible service quality information from each of the connection target DRs.

Abstract: Disclosed herein are a multicast apparatus and method. In the multicast method, a multicast apparatus searches one or more communication objects in a distributed network environment. Multicast data is received from a sender-side communication object among the one or more communication objects. A polling message is received from the communication object that transmitted the multicast data. A response message corresponding to the polling message is sent. It is determined whether a transmission error has occurred between communication objects based on results of sending of the response message, and multicasting is performed based on results of determination.

Abstract: A node constituting data distribution service (DDS) structure according to an exemplary embodiment of the present invention includes a first DDS application including a first DCPS layer and a first real-time publish-subscribe (RTPS) layer and a second DDS application including a second DCPS layer communicated with the first RTPS layer.

Abstract: The present invention provides a lightweight multicast method and apparatus for a data distribution service. The lightweight multicast apparatus includes a network congestion detection unit for multicasting packets to a plurality of subscriber node terminals, and detecting a cause of network congestion using a negative response message transferred from a relevant subscriber node terminal that could not receive the packets among the plurality of subscriber node terminals. A network recovery control unit determines a recovery control policy depending on the cause of the congestion detected by the network congestion detection unit, and solves the cause of the congestion.

Abstract: An apparatus for monitoring a data distribution service (DDS), and a method thereof are disclosed. A DDS monitoring apparatus monitoring a data distribution service (DDS) includes: a monitoring participant configured to receive a monitoring topic from a DDS node, wherein the monitoring topic is status information of the DDS node; a monitoring data collector configured to collect the monitoring topic, and to determine whether or not the monitoring topic is urgent; and a monitoring data analyzer configured to analyze the monitoring topic according to whether or not the monitoring topic is urgent to determine whether to create DDS status information corresponding to the status of the DDS node. Accordingly, it is possible to monitor a DDS in real time.