Hybrid Networks, Inc.

Trilliant Networks, Inc.

Fisher-rosemount Systems, Inc

Stratacom, Inc.

Trilliant Holdings Inc.

Extreme Networks, Inc.

Hart Communication Foundation

Hybrid Patents Incorporated

Northern Telecom Limited

Emerson Process Management Limited

Frederick R Enns

Michel Veillette

Eduardo J Moura

Jan Maksymilian Gronski

Randall Wayne Frei

Robert L Packer

Robert A Luxenberg

Jose A Gutierrez

Martin Zielinski

Ramesh Neelmegh

Jong C Kim

Mark J Nixon

Eric Darrell Rotvold

Tomas Lennvall

Wallace A Pratt, Jr

Robin S Pramanik

Thomas L Phinney

Yuri Zats

J Paul O'Hare

Subir Varma

Charles Matthew Corbalis

William R Jones, Iii

Amar S Gupta

Robert Conant

Randy Frei

Vincent Bemmel

Ross S Heitkamp

John D Weisbloom

William Nelson Bedell

Prem C Jain

Luc Roy

Francis Lacasse

Nathan Ota

A computer implemented method and system for secure aggregated event reports. The method comprises determining, by a device, that a status change has occurred at the device; receiving, by the device, a status change report from one or more child devices; generating, by the device, a device status change record; generating a record verification field, comprising: combining a nonce, an event type, and a unique device identifier; generating a message integrity check code for the combined nonce, event type and device identifier; and appending the message integrity check code to the device status change record; appending the device status change record to the received status change report; and transmitting, by the device, the status change report to one or more parent devices toward a head end system.

Method and apparatus for secure aggregated event reporting

A process for communicating utility-related data over at least one network is described. the process includes: collecting utility-related data at a hub device during a first predetermined period of time; securing the utility-related data at the hub device using digital envelopes during the first predetermined period of time; initiating by the hub device an autonomous wake up process during a second predetermined period of time; sending the secure utility-related data over a first network to a designated server via at least one User Datagram protocol ('UDP') message during the second predetermined period of time; and receiving an acknowledgement of receipt message of the at least one UDP message from the designated server; wherein the first and second predetermined periods of time typically do not overlap, but may overlap.

Device and method for facilitating secure communications over a cellular network

A computer implemented method and apparatus for authenticating a field tool by a field device comprising: receiving, on a field device, an authentication certificate; verifying the authentication certificate using a trust anchor certificate on the field device; securing communication between the field tool and the field device with a key generated by a key derivation method using exchanged certificates; receiving a field tool task authorization certificate; verifying the authorization certificate using a trust anchor certificate on the field device; receiving a task request to perform a task by the field tool; and determining whether the task is authorized based on the task authorization certificate; and performing the task on the field device when it is determined the task is authorized.

Method and system for hand held terminal security

A process for communicating utility-related data over at least one network is described, the process includes: collecting utility-related data at a hub device during a first predetermined period of time; securing the utility-related data at the hub device using digital envelopes during the first predetermined period of time; initiating by the hub device an autonomous wake up process during a second predetermined period of time; sending the secure utility-related data over a first network to a designated server via at least one User Datagram, protocol ('UDP') message during the second predetermined period of time; and receiving an acknowledgement of receipt message of the at least one UDP message from the designated server; wherein the first and second predetermined periods of time typically do not overlap, but may overlap.

A dual-mode router for conveying process communication packets across a plurality of distinct wireless process communication networks is provided. The router includes wireless communication circuitry and a controller coupled to the wireless communication circuitry. The wireless communication circuitry is configured to interact with signals from each of the plurality of distinct wireless process communication networks. The controller is configured to adapt process communication packets from a first distinct wireless process communication network for transmission over a second distinct wireless process communication network. Methods for configuring the distinct wireless process communication networks and relaying process packets over the distinct wireless process communication networks are also provided.

System and method for wireless process communication over distinct networks

A communications module for facilitating secure communications on a first network and a second network includes: a single transceiver for receiving and transmitting first network messages from and to the first network and at least transmitting second network messages to the second network; at least a first processor connected to the single transceiver for processing one or more first network messages and second network messages; the at least a first processor including first network logic for processing first network messages and second network logic for processing second network messages; and the second network logic including instructions for securing second network messages such that decryption of the second network messages is limited to a particular receiving device on the second network. The second network messages may include commodity pricing and use information.

System and method for securely communicating across multiple networks using a single radio

A method of enhancing security in a wireless mesh communication network operating in a process control environment and including a plurality of wireless network devices includes processing a join request from a wireless device wishing to join the wireless mesh communication network, providing a limited network functionality to the wireless device if the join request is granted, requesting a complete approval of the wireless device; and granting a full network functionality to the wireless device if the complete approval of the wireless device is received.

Enhancing security in a wireless network

An asymmetric network system manages bandwidth allocation and configuration of remote devices in a broadband network. A modular architecture of the system permits independent scalability of upstream and downstream capacity separately for each of the upstream and downstream physical paths. Allocation of downstream bandwidth to requesting devices is made according to bandwidth utilization by other devices, bandwidth demand by the requesting remote device, class or grade of service by the requesting remote device or bandwidth guaranteed to other remote devices. Configuration parameters remotely managed by the network include device addresses (global and local), transmission credit values, upstream channel assignment and upstream transmit power level. Further, management of device configuration profiles and bandwidth allocation occurs through control and response packets respectively generated by the network and the remote devices according to network operating software located at both ends. Control packets include poll packets that request, among other things, demand for an upstream transmission. Configuration packets instruct remote devices to assume an operational state or return status or statistical data. Response packets transmitted by the remote devices provide information to the network operations center for control purposes or to confirm the state of operation of remote devices, including channel operating statistics, errors, noise, etc. in order to remove or reallocate assigned upstream channels. Downloadable network operating software enables the network operator to upgrade remote operating software or to reconfigure the response profile of the remote devices. Account administration and usage reports are also generated. IP or ATM encapsulation, as well as forward error correction and encryption, are employed in the broadband network which may include an RF, satellite and cable medium with or without a telephony or router return path.

High-speed internet access system

Housing for electronic device

Growing community of inventors

Menlo Park, CA, United States of America

Frederick R Enns