Patents Assigned to Rajant Corporation
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Patent number: 11533689Abstract: 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: GrantFiled: June 23, 2020Date of Patent: December 20, 2022Assignee: RAJANT CORPORATIONInventors: Paul Hellhake, David Acker, William Jordan
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Patent number: 11429751Abstract: 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: GrantFiled: July 1, 2019Date of Patent: August 30, 2022Assignee: Rajant CorporationInventor: Kevin Osugi
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Patent number: 10694473Abstract: 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: GrantFiled: December 1, 2015Date of Patent: June 23, 2020Assignee: Rajant CorporationInventors: Paul Hellhake, David Acker, William Jordan
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Patent number: 10375597Abstract: 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: GrantFiled: November 30, 2017Date of Patent: August 6, 2019Assignee: Rajant CorporationInventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
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Patent number: 10263767Abstract: 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: GrantFiled: July 3, 2018Date of Patent: April 16, 2019Assignee: RAJANT CORPORATIONInventor: Bryan Doi
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Patent number: 9979635Abstract: 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: GrantFiled: December 7, 2016Date of Patent: May 22, 2018Assignee: Rajant CorporationInventors: Paul R. Hellhake, Martin A. Lamb, Alaattin Caliskan, David Acker, Joseph E. Parks
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Publication number: 20180097647Abstract: 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: ApplicationFiled: November 30, 2017Publication date: April 5, 2018Applicant: RAJANT CORPORATIONInventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
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Patent number: 9853669Abstract: 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: GrantFiled: July 10, 2013Date of Patent: December 26, 2017Assignee: Rajant CorporationInventor: James Croyle
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Patent number: 9847887Abstract: 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: GrantFiled: March 29, 2016Date of Patent: December 19, 2017Assignee: Rajant CorporationInventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
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Patent number: 9531632Abstract: 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: GrantFiled: November 11, 2013Date of Patent: December 27, 2016Assignee: Rajant CorporationInventors: Paul R. Hellhake, Martin A. Lamb, Alaattin Caliskan, David Acker, Joseph E. Parks
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Patent number: 9319922Abstract: 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: GrantFiled: November 8, 2013Date of Patent: April 19, 2016Assignee: Rajant CorporationInventors: David Acker, Paul R. Hellhake, William Jordan, Joseph E. Parks
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Publication number: 20150271086Abstract: 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: ApplicationFiled: March 24, 2014Publication date: September 24, 2015Applicant: Rajant CorporationInventors: Paul Hellhake, David Acker, Joe Parks
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Publication number: 20150237659Abstract: 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: ApplicationFiled: August 29, 2014Publication date: August 20, 2015Applicant: Rajant CorporationInventors: Robert Joseph Schena, Kenneth Richard Brandmier, James Thomas Croyle, David Bruce Haynie
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Patent number: 9001645Abstract: 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: GrantFiled: December 7, 2012Date of Patent: April 7, 2015Assignee: Rajant CorporationInventors: Paul R. Hellhake, Martin A. Lamb, Joseph E. Parks, David Acker
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Publication number: 20150055471Abstract: 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: ApplicationFiled: November 11, 2013Publication date: February 26, 2015Applicant: Rajant CorporationInventors: Paul R. HELLHAKE, David Acker, Joseph E. Parks, William Jordan
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Publication number: 20140219091Abstract: 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: ApplicationFiled: November 11, 2013Publication date: August 7, 2014Applicant: Rajant CorporationInventors: Paul R. Hellhake, Martin A. Lamb, Alaattin Caliskan, David Acker, Joseph E. Parks
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Publication number: 20140169171Abstract: 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: ApplicationFiled: November 8, 2013Publication date: June 19, 2014Applicant: Rajant CorporationInventors: David ACKER, Paul R. HELLHAKE, William JORDAN, Joseph E. PARKS
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Publication number: 20140160996Abstract: 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: ApplicationFiled: November 7, 2013Publication date: June 12, 2014Applicant: Rajant CorporationInventors: Paul R. Hellhake, David ACKER, Jonathan WURTZ, David B. HAYNIE, Keith SULLIVAN
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Publication number: 20130128726Abstract: 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: ApplicationFiled: December 7, 2012Publication date: May 23, 2013Applicant: Rajant CorporationInventor: Rajant Corporation
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Patent number: 8341289Abstract: 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: GrantFiled: May 17, 2006Date of Patent: December 25, 2012Assignee: Rajant CorporationInventors: Paul R. Hellhake, Martin A. Lamb, Joseph E. Parks, Rajashekhar Mansanpally