Patents Assigned to Rajant Corporation
  • Patent number: 11533689
    Abstract: A system and method for controlling dynamic transmit power in a mesh network are disclosed. Distributed power transmit management methodology that implements transmission power management based on a comparison of signal to noise ratios from received beacon packets is used on a peer-to-peer basis. Embodiments work to keep all nodes accessible, dynamically adaptable to constant changes in the network, maximize frequency reuse, and reduce power requirements to maximize network performance while minimizing interference.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: December 20, 2022
    Assignee: RAJANT CORPORATION
    Inventors: Paul Hellhake, David Acker, William Jordan
  • Patent number: 11429751
    Abstract: The disclosure is generally directed to a method and apparatus for encrypting and decrypting data on an integrated circuit. In various implementations, the apparatus includes an on-chip high performance bus bridge that transparently encrypts and decrypts data between the embedded microprocessor(s) and off-chip system memory. In some implementations, the apparatus is optimized to the transactions generated by the processor's cache controller (e.g., optimized for cache line size) and optimized to the bus protocol being used. This provides code protection with minimal effect on system performance latency and throughput. The implementation of multiple cryptographic engines allows for encryption of a complete cache line while incurring only a single latency for the first cipher rounds to be completed.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: August 30, 2022
    Assignee: Rajant Corporation
    Inventor: Kevin Osugi
  • Patent number: 10694473
    Abstract: A system and method for controlling dynamic transmit power in a mesh network are disclosed. Distributed power transmit management methodology that implements transmission power management based on a comparison of signal to noise ratios from received beacon packets is used on a peer-to-peer basis. Embodiments work to keep all nodes accessible, dynamically adaptable to constant changes in the network, maximize frequency reuse, and reduce power requirements to maximize network performance while minimizing interference.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 23, 2020
    Assignee: Rajant Corporation
    Inventors: Paul Hellhake, David Acker, William Jordan
  • Patent number: 10375597
    Abstract: Systems, devices, and methodology for removing echo and reducing congestion in multicast (broadcast) over a dynamic self-healing mobile mesh network, by use of discrete embedded computers synchronously tracking mesh connections and link quality across multiple RF connections, keeping multicast both efficient and effective in a highly kinetic, ever changing, mesh topology.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 6, 2019
    Assignee: Rajant Corporation
    Inventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
  • Patent number: 10263767
    Abstract: A system and method to mitigate or complicate the use of differential power analysis (DPA) and simple power analysis (SPA) in the attack of a targeted integrated circuit, or device containing an integrated circuit, that is processing sensitive information. The system and method modifies the regularity of a clock that initiates the power events within the circuit such that subsequent processing of information does not always occur at the same time.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: April 16, 2019
    Assignee: RAJANT CORPORATION
    Inventor: Bryan Doi
  • Patent number: 9979635
    Abstract: Computer networks with multiple nodes are often required to deliver packets to all nodes in the network, commonly referred to as “flooding.” Flooding is used to deliver multicast and broadcast packets generated by application, network and other layers of the networking stack. Flooding can be done very reliably but less efficiently via node to node “unicast” transmissions, or very efficiently but less reliably via “broadcast” transmissions. In order to balance reliability with efficiency, this invention defines a threshold for the number of neighboring nodes as seen by a given node prior to a flooding operation to determine whether data should be unicast or broadcast. Below that threshold, unicast is used; at or above that threshold, broadcast is used. The invention also incorporates knowledge of nodes seen in turn by neighbor nodes as part of this decision.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: May 22, 2018
    Assignee: Rajant Corporation
    Inventors: Paul R. Hellhake, Martin A. Lamb, Alaattin Caliskan, David Acker, Joseph E. Parks
  • Publication number: 20180097647
    Abstract: Systems, devices, and methodology for removing echo and reducing congestion in multicast (broadcast) over a dynamic self-healing mobile mesh network, by use of discrete embedded computers synchronously tracking mesh connections and link quality across multiple RF connections, keeping multicast both efficient and effective in a highly kinetic, ever changing, mesh topology.
    Type: Application
    Filed: November 30, 2017
    Publication date: April 5, 2018
    Applicant: RAJANT CORPORATION
    Inventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
  • Patent number: 9853669
    Abstract: The present invention provides for a modular radio frequency communications assembly including a radio frequency hub and one or more radio frequency modules. Each radio frequency module includes a power and data interface for receiving power from and exchanging data with a modular radio frequency hub and a processor and memory for providing at least one of change a communications frequency, increase communications bandwidth, or add security using the one or more antennas and the power and data interface. The radio frequency hub includes two or more communications interfaces for connecting to two or more radio frequency modules, wherein each of the communications interfaces have the same physical and electrical configuration; A shared data and power interface for sharing data and power among the two or more radio frequency modules. A bus distributes data and power among the two or more radio frequency modules.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: December 26, 2017
    Assignee: Rajant Corporation
    Inventor: James Croyle
  • Patent number: 9847887
    Abstract: Systems, devices, and methodology for removing echo and reducing congestion in multicast (broadcast) over a dynamic self-healing mobile mesh network, by use of discrete embedded computers synchronously tracking mesh connections and link quality across multiple RF connections, keeping multicast both efficient and effective in a highly kinetic, ever changing, mesh topology.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 19, 2017
    Assignee: Rajant Corporation
    Inventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
  • Patent number: 9531632
    Abstract: Computer networks with multiple nodes are often required to deliver packets to all nodes in the network, commonly referred to as “flooding.” Flooding is used to deliver multicast and broadcast packets generated by application, network and other layers of the networking stack. Flooding can be done very reliably but less efficiently via node to node “unicast” transmissions, or very efficiently but less reliably via “broadcast” transmissions. In order to balance reliability with efficiency, this invention defines a threshold for the number of neighboring nodes as seen by a given node prior to a flooding operation to determine whether data should be unicast or broadcast. Below that threshold, unicast is used; at or above that threshold, broadcast is used. The invention also incorporates knowledge of nodes seen in turn by neighbor nodes as part of this decision.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: December 27, 2016
    Assignee: Rajant Corporation
    Inventors: Paul R. Hellhake, Martin A. Lamb, Alaattin Caliskan, David Acker, Joseph E. Parks
  • Patent number: 9319922
    Abstract: Systems, devices, and methodology for removing echo and reducing congestion in multicast (broadcast) over a dynamic self-healing mobile mesh network, by use of discrete embedded computers synchronously tracking mesh connections and link quality across multiple RF connections, keeping multicast both efficient and effective in a highly kinetic, ever changing, mesh topology.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 19, 2016
    Assignee: Rajant Corporation
    Inventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
  • Publication number: 20150271086
    Abstract: Networks based on Internet Protocol (IPv4) employ an administrative Address Resolution Protocol (ARP) to convert logical IP addresses into physical Ethernet media access control (MAC) addresses. These queries address the entire network, and in very large networks, they contribute substantially to network traffic. This invention identifies ARP packets in a large, dynamic network and uses various means to minimize their broadcast throughout the network. This results in optimized network performance.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 24, 2015
    Applicant: Rajant Corporation
    Inventors: Paul Hellhake, David Acker, Joe Parks
  • Publication number: 20150237659
    Abstract: Energy generation and control systems to generate and deliver energy at the point of need, and use the so energy generated to enable individual points to form a mesh network. The disclosure also pertains to delivery of a predictable and steady load across a large mechanical system with distributed local-point energy generation and storage.
    Type: Application
    Filed: August 29, 2014
    Publication date: August 20, 2015
    Applicant: Rajant Corporation
    Inventors: Robert Joseph Schena, Kenneth Richard Brandmier, James Thomas Croyle, David Bruce Haynie
  • Patent number: 9001645
    Abstract: Traditional computer networks have been designed with the need for highly reliable packet delivery. This is largely handled by a centrally managed simple send-acknowledge protocol. In a highly dynamic mesh network, these methods are inadequate to ensure the most reliable packet delivery. This invention uses the natural redundancy of routes in a mesh and other techniques to increase the reliability of a network, even as the paths to any given node are dynamic in nature.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 7, 2015
    Assignee: Rajant Corporation
    Inventors: Paul R. Hellhake, Martin A. Lamb, Joseph E. Parks, David Acker
  • Publication number: 20150055471
    Abstract: The protocol determines the quality of each node to node link(s), based on an exponentially weighted moving average of the time each packet spends within the network node. Once determined, that quality of link is then mapped into the physical QoS resources of the networking hardware in use (within the network). Packets destined for higher quality links will see an upgrade of their QoS rating, while packets destined to lower quality links will see a downgrade of their QoS rating. That adjustment permits the higher quality links to be processed before the lower quality links resulting in more efficient and complete communications in the network. Poorer quality links will no longer act as roadblocks to the higher quality packets.
    Type: Application
    Filed: November 11, 2013
    Publication date: February 26, 2015
    Applicant: Rajant Corporation
    Inventors: Paul R. HELLHAKE, David Acker, Joseph E. Parks, William Jordan
  • Publication number: 20140219091
    Abstract: Computer networks with multiple nodes are often required to deliver packets to all nodes in the network, commonly referred to as “flooding.” Flooding is used to deliver multicast and broadcast packets generated by application, network and other layers of the networking stack. Flooding can be done very reliably but less efficiently via node to node “unicast” transmissions, or very efficiently but less reliably via “broadcast” transmissions. In order to balance reliability with efficiency, this invention defines a threshold for the number of neighboring nodes as seen by a given node prior to a flooding operation to determine whether data should be unicast or broadcast. Below that threshold, unicast is used; at or above that threshold, broadcast is used. The invention also incorporates knowledge of nodes seen in turn by neighbor nodes as part of this decision.
    Type: Application
    Filed: November 11, 2013
    Publication date: August 7, 2014
    Applicant: Rajant Corporation
    Inventors: Paul R. Hellhake, Martin A. Lamb, Alaattin Caliskan, David Acker, Joseph E. Parks
  • Publication number: 20140169171
    Abstract: Systems, devices, and methodology for removing echo and reducing congestion in multicast (broadcast) over a dynamic self-healing mobile mesh network, by use of discrete embedded computers synchronously tracking mesh connections and link quality across multiple RF connections, keeping multicast both efficient and effective in a highly kinetic, ever changing, mesh topology.
    Type: Application
    Filed: November 8, 2013
    Publication date: June 19, 2014
    Applicant: Rajant Corporation
    Inventors: David ACKER, Paul R. HELLHAKE, William JORDAN, Joseph E. PARKS
  • Publication number: 20140160996
    Abstract: Systems, devices, methods for use of a highly mobile conferencing system over potentially dynamic networks, such as a self-healing mobile mesh network which, by means of discrete embedded computers mixes analog and digital data for end user communications in remote, disaster, warfare or topographically challenging environments with further capability of conference calling between groups and discrete nodes within the network.
    Type: Application
    Filed: November 7, 2013
    Publication date: June 12, 2014
    Applicant: Rajant Corporation
    Inventors: Paul R. Hellhake, David ACKER, Jonathan WURTZ, David B. HAYNIE, Keith SULLIVAN
  • Publication number: 20130128726
    Abstract: Traditional computer networks have been designed with the need for highly reliable packet delivery. This is largely handled by a centrally managed simple send-acknowledge protocol. In a highly dynamic mesh network, these methods are inadequate to ensure the most reliable packet delivery. This invention uses the natural redundancy of routes in a mesh and other techniques to increase the reliability of a network, even as the paths to any given node are dynamic in nature.
    Type: Application
    Filed: December 7, 2012
    Publication date: May 23, 2013
    Applicant: Rajant Corporation
    Inventor: Rajant Corporation
  • Patent number: 8341289
    Abstract: A system and method for improving digital communication in a wireless mobile ad-hoc network. More specifically, the system includes one or more portable network devices operable to support the seamless operation of a self-initializing, self-healing, adaptive portable network. The portable network devices implement protocols that provide bandwidth management capabilities for use with radios, routers and other wireless network devices. Each portable network device includes at least one wireless transceiver, a processor and control software. The processor and control software are logically coupled to the wireless transceiver to facilitate digital communication via a plurality of communication channels with other network devices.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: December 25, 2012
    Assignee: Rajant Corporation
    Inventors: Paul R. Hellhake, Martin A. Lamb, Joseph E. Parks, Rajashekhar Mansanpally