Patents Assigned to Real-Time Innovations, Inc.
  • Patent number: 11157248
    Abstract: A bidirectional conversion method is provided between a memory representation and a network representation of data samples associated with a DDS type in a system using an Object Management Group DDS and a Real-Time Publish Subscribe (RTPS) protocol that is more potent, maintainable, and with a smaller footprint. A first conversion recipe is generated using a type description and a language binding information that transforms any data sample associated with the type description from a first memory representation to a network representation, and this first conversion recipe is generated only once. A second conversion recipe is generated using a type description and language binding information that transforms any data sample associated with the type description from the network representation to a second memory representation, and this second conversion recipe is generated only once. Both generated first and second conversion recipes are then executed on all data samples.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 26, 2021
    Assignee: Real-Time Innovations, Inc.
    Inventors: Gerardo Pardo-Castellote, Erin Adams McManus, Fernando Crespo Sanchez
  • Patent number: 11108892
    Abstract: A method for reducing a number of copies required to send a data sample with a Data Distribution Service (DDS) type in a system using an Object Management Group (OMG) Data Distribution Service (DDS) and a Real-Time Publish Subscribe (RTPS) protocol is provided. Key to the invention is the definition/creation of a memory representation of the data samples for the DDS type that is equal to the network representation of the data samples for the DDS type. Sending of data samples to the DataReader is accomplished without making a serialization copy of the data samples, and for the receiving the data samples from the DataWriter is accomplished without making a deserialization copy of the data samples. Further, a method is provided for accessing to a network representation of data samples with a DDS type in a system using an OMG DDS and a RTPS protocol.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: August 31, 2021
    Assignee: Real-Time Innovations, Inc.
    Inventors: Alejandro de Campos Ruiz, Harishkumar Umayi Kalyanaramudu, Gerardo Pardo-Castellote, Fernando Crespo Sanchez
  • Patent number: 11018798
    Abstract: Adaptive tuning techniques are provided for data communications in an Object Management Group (OMG) Real-Time Publish Subscribe (RTPS) Protocol operable over a communication network to provide good throughput/latency tradeoff as well as efficient bandwidth utilization. With this invention, latency under high throughput conditions can be reduced several times compared with the latency obtained with traditional non-adaptive approaches.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: May 25, 2021
    Assignee: Real-Time Innovations, Inc.
    Inventors: Juan Jose Martin Carrascosa, Gerardo Pardo-Castellote, Yusheng Yang, Fernando Crespo Sanchez
  • Patent number: 10439756
    Abstract: Adaptive tuning techniques are provided for data communications in an Object Management Group (OMG) Real-Time Publish Subscribe (RTPS) Protocol operable over a communication network to provide good throughput/latency tradeoff as well as efficient bandwidth utilization. With this invention, latency under high throughput conditions can be reduced several times compared with the latency obtained with traditional non-adaptive approaches.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: October 8, 2019
    Assignee: Real-Time Innovations, Inc.
    Inventors: Juan Jose Martin Carrascosa, Gerardo Pardo-Castellote, Yusheng Yang, Fernando Crespo Sanchez
  • Patent number: 9893835
    Abstract: Adaptive tuning techniques are provided for data communications in an Object Management Group (OMG) Real-Time Publish Subscribe (RTPS) Protocol operable over a communication network to provide good throughput/latency tradeoff as well as efficient bandwidth utilization. With this invention, latency under high throughput conditions can be reduced several times compared with the latency obtained with traditional non-adaptive approaches.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 13, 2018
    Assignee: Real-Time Innovations, Inc.
    Inventors: Juan Jose Martin Carrascosa, Gerardo Pardo-Castellote, Yusheng Yang, Fernando Crespo Sanchez
  • Patent number: 9386081
    Abstract: Publisher-side content based filtering methods and systems are provided to select which subscribers shall receive each data-message sent by a publisher using an Object Management Group (OMG) Real-Time Publish-Subscribe (RTPS) protocol. Methods and systems are provided for writer-side content based filtering and data distribution from a publisher to a plurality of subscribers using an Object Management Group (OMG) Real-Time Publish-Subscribe (RTPS) protocol. Methods and systems are provided for performing scalable content-based filtering and distribution from a publisher to a plurality of subscribers using the Object Management Group (OMG) Real-Time Publish-Subscribe (RTPS) protocol.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 5, 2016
    Assignee: Real-Time Innovations, Inc.
    Inventors: Fernando Crespo Sanchez, Jan Van Bruaene, Tron Sjur Kindseth, Gerardo Pardo-Castellote, Roshan Krishnan, Rajive Joshi
  • Patent number: 9304836
    Abstract: Bridging data distributed service (DDS) domains in a networked system based on discovery data is provided. Each DDS domain includes DDS software applications capable of publishing data and subscribing to data. A DDS domain bridge is communicatively coupled with the DDS software applications of both DDS domains. The DDS domain bridge monitors discovery data provided by the DDS software applications for a topic name, a topic type, and/or QoS properties. The DDS domain bridge includes creation rules and enabling rules controlling input/output DDS dataflow objects. Based on the state of the DDS dataflow objects set by the rules, uni- or bi-directional DDS dataflow is established between the input and output DDS dataflow objects enabling data propagation between DDS software applications of DDS domains.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 5, 2016
    Assignee: Real-Time Innovations, Inc.
    Inventors: Alejandro de Campos Ruiz, Gerardo Pardo-Castellote, José María López Vega, Fernando Crespo Sanchez
  • Patent number: 8671135
    Abstract: A method of providing transports for a data distribution middleware over a plurality of transport networks is provided. A data distribution middleware with a pluggable transport layer is provided. A plurality of transport plugins in the transport layer are provided. Aliases are assigned to each of the transport plugins of the plurality of transport plugins, wherein at least one of the transport plugins of the plurality of transport plugins has a plurality of aliases.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: March 11, 2014
    Assignee: Real-Time Innovations, Inc.
    Inventors: Rajive Joshi, Henry Choi, Gerardo Pardo-Castellote, Stefaan Sonck Thiebaut
  • Patent number: 8327374
    Abstract: Techniques for execution of multiple threads in a multithreaded computing programming environment are disclosed. The techniques are especially well suited for environments that use multilayered programming architecture where a higher layer can build on the functions provided by a lower layer where the delay time is an important consideration. In one aspect, the conceptual notion of a “Worker” effectively serves to represent the thread-specific execution context for a thread of execution (“thread”) in a multithreaded computing environment. Another aspect, provides the notion of an Exclusion Area (EA) as logical lock that serves to protect shared resources in a multithreaded environment. The combination of the worker and EA are used to provide a powerful framework that, among other things, allows minimizing of the delay time.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: December 4, 2012
    Assignee: Real-Time Innovations, Inc.
    Inventors: Stephen Jisoo Rhee, Elaine Yee Ting Sin, Gerardo Pardo-Castellote, Stefaan Sonck Thiebaut, Rajive Joshi
  • Patent number: 8150988
    Abstract: A real-time protocol for real-time network programming applications is disclosed. The protocol is executable on a computer network having a plurality of nodes that include applications, a network stack, an operating system, and middleware capable of executing real-time operations. The protocol can use group objects to model physical and logical devices connected to the network wherein each group object comprises at least one variable. Changes in these variables are encapsulated in variable change messages which are propagated in the network using communication objects. Also described is a real-time messaging format useful for implementing the protocol.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: April 3, 2012
    Assignee: Real-Time Innovations, Inc.
    Inventors: Gerardo Pardo-Castellote, Mark Hamilton, Stefaan Sonck Thiebaut
  • Publication number: 20110185074
    Abstract: A real-time protocol for real-time network programming applications is disclosed. The protocol is executable on a computer network having a plurality of nodes that include applications, a network stack, an operating system, and middleware capable of executing real-time operations. The protocol can use group objects to model physical and logical devices connected to the network wherein each group object comprises at least one variable. Changes in these variables are encapsulated in variable change messages which are propagated in the network using communication objects. Also described is a real-time messaging format useful for implementing the protocol.
    Type: Application
    Filed: December 10, 2010
    Publication date: July 28, 2011
    Applicant: REAL-TIME INNOVATIONS, INC.
    Inventors: Gerardo Pardo-Castellote, Mark Hamilton, Stefaan Sonck Thiebaut
  • Patent number: 7882253
    Abstract: A real-time protocol for real-time network programming applications is disclosed. The protocol is executable on a computer network having a plurality of nodes that include applications, a network stack, an operating system, and middleware capable of executing real-time operations. The protocol can use group objects to model physical and logical devices connected to the network wherein each group object comprises at least one variable. Changes in these variables are encapsulated in variable change messages which are propagated in the network using communication objects. Also described is a real-time messaging format useful for implementing the protocol.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: February 1, 2011
    Assignee: Real-Time Innovations, Inc.
    Inventors: Gerardo Pardo-Castellote, Mark Hamilton, Stefaan Sonck Thiebaut
  • Patent number: 7827559
    Abstract: Techniques for execution of multiple threads in a multithreaded computing programming environment are disclosed. The techniques are especially well suited for environments that use multilayered programming architecture where a higher layer can build on the functions provided by a lower layer where the delay time is an important consideration. In one aspect, the conceptual notion of a “Worker” effectively serves to represent the thread-specific execution context for a thread of execution (“thread”) in a multithreaded computing environment. Another aspect, provides the notion of an Exclusion Area (EA) as logical lock that serves to protect shared resources in a multithreaded environment. The combination of the worker and EA are used to provide a powerful framework that, among other things, allows minimizing of the delay time.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: November 2, 2010
    Assignee: Real-Time Innovations, Inc.
    Inventors: Stephen Jisoo Rhee, Elaine Yee Ting Sin, Gerardo Pardo-Castellote, Stefaan Sonck Thiebaut, Rajive Joshi
  • Patent number: 7783853
    Abstract: A method of operating real-time middleware associated with at least one node of a data distribution system is provided. At least one pool of a plurality of fixed block size units of memory of the node is allocated (e.g., via an operating system call). Based on loan requests for dynamic memory elements on behalf of a user application executing on the node, an indication of at least one of the allocated fixed block size units to be lent is provided. A list of which allocated fixed block size units are being lent from the pool is maintained, including maintaining the list based on return requests, on behalf of the user application executing on the node, of fixed block size units of the pool. Substantially all of the dynamic memory elements of the real-time middleware associated with the node are provided from the at least one pool of allocated fixed block size units based on the loan requests on behalf of the user application.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 24, 2010
    Assignee: Real-Time Innovations, Inc.
    Inventors: Stephen Jisoo Rhee, Yi Dai, Gerardo Pardo-Castellote, Rajive Joshi
  • Patent number: 7533128
    Abstract: A bridge to integrate representation of global data space in Data Distribution Service (DDS) and Data Management Systems (DBMS). The DDS concept of a keyed topic and a type is mapped to the DBMS notion of a keyed table and schema representing data-object instances. Rules are specified for translating between a DBMS table record and the DDS wire format representation. Four bridge components are possible: Bridge-DDS-DBMS-Publication to store outgoing published data; Bridge-DDSDBMS-Subscription to store incoming subscribed data; Bridge-DBMS-DDS-Publication to publish changes to a DBMS table; and Bridge-DBMS-DDS-Subscription to update a DBMS Table based on received data subscriptions from the network. Mechanisms are provided for preventing publication of data seen by DDS, and for preventing application of changes already made in a DBMS table.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 12, 2009
    Assignee: Real-Time Innovations, Inc.
    Inventors: Fernando Crespo Sanchez, Rajive Joshi, Gerardo Pardo-Castellote
  • Patent number: 7275237
    Abstract: A development tool combines advantages of a simulation tool with an object-oriented modeling tool, including a real-time mathematical matrix library and an object model. The tool is applicable to any intelligent control system. A composite object group (COG) contains both sampled-data and event-driven capabilities. COGs merge procedural and object-oriented programming, and provide explicit, graphical integration of both types of processing and are fully hierarchical. A control system is built up of object-oriented components, including these types: atomic, interface, data flow and state transition. A finite state machine (FSM) component is built from states, transitions, events and state transition components. Data flow components provide sampled-data capabilities. FSMs provide event-drive capabilities. Each component may include methods and attributes.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: September 25, 2007
    Assignee: Real-Time Innovations, Inc.
    Inventors: Stanley A. Schneider, Vincent W. Chen, Gerardo Pardo-Castellote, Howard H. Wang, Rajive Joshi
  • Patent number: 6865429
    Abstract: A composite object group (COG) data structure embodied in a computer-readable medium for building a control system that has both a clock cycle and event processing is provided. An interface for passing information to and from the COG data structure is provided. One or more data flow objects are provided in the COG to accept input data and to produce output data on the clock cycle. The data flow object is connected to the interface and provides sampled-data processing for the control system. One or more state machine objects are provided in the COG; each includes a plurality of states and a plurality of transitions between the states that are each triggered by an event. The state machine object provides event-driven processing for the control system, whereby the COG data structure provides both sampled-data and event-driven processing for the control system.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: March 8, 2005
    Assignee: Real-Time Innovations, Inc.
    Inventors: Stanley A. Schneider, Vincent W. Chen, Gerardo Pardo-Castellote, Howard H. Wang, Rajive Joshi
  • Patent number: 6718533
    Abstract: A development tool combines advantages of a simulation tool with an object-oriented modeling tool, including a real-time mathematical matrix library and an object model. The tool is applicable to any intelligent control system. A composite object group (COG) contains both sampled-data and event-driven capabilities. Mapping the computing resources of a computing device throughout the hierarchy of a control system is provided for modes, executable programs and threads of a processor. Within a given processor, each component of a control system may be assigned to individual execution threads within that processor simply by naming a thread.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: April 6, 2004
    Assignee: Real-Time Innovations, Inc.
    Inventors: Stanley A. Schneider, Vincent W. Chen, Gerardo Pardo-Castellote, Howard H. Wang, Rajive Joshi
  • Publication number: 20020178273
    Abstract: A real-time protocol for real-time network programming applications is disclosed. The protocol is executable on a computer network having a plurality of nodes that include applications, a network stack, an operating system, and middleware capable of executing real-time operations. The protocol can use group objects to model physical and logical devices connected to the network wherein each group object comprises at least one variable. Changes in these variables are encapsulated in variable change messages which are propagated in the network using communication objects. Also described is a real-time messaging format useful for implementing the protocol.
    Type: Application
    Filed: April 5, 2002
    Publication date: November 28, 2002
    Applicant: Real-Time Innovations, Inc.
    Inventors: Gerardo Pardo-Castellote, Mark Hamilton, Stefaan Sonck Thiebaut