Patents Assigned to Digi International, Inc.
  • Patent number: 8533678
    Abstract: An embedded processor system includes an integrated development environment and an embedded processor operating system. The embedded processor operating system is operable to run on the embedded processor system, and a command queue is operable to receive commands from a debugging module external to the embedded processor system. A command queue processing module is operable to change settings in the embedded processor system in response to commands in the command queue.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 10, 2013
    Assignee: Digi International Inc.
    Inventors: Steven L. Halter, Adam D. Dirstine, David J. Hutchison, Pamela A. Wright, Jeffrey M. Ryan, Charles H. Gordon
  • Patent number: 8502831
    Abstract: Apparatus, methods, and systems are disclosed to manage memory in an embedded system. The system registers video applications and video sources with a memory manager. The memory manager in turn provides memory to the video applications and video sources. The system has an input to receive an output from at least one video source. The memory manager receives a frame from the video source and transfers the frame to memory. Once the frame is in memory the video application may work with the frame. All of these operations are conducted with the memory manager actively managing and allocating the memory resources.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: August 6, 2013
    Assignee: Digi International Inc.
    Inventors: Adam D. Dirstine, Steven L. Halter, David J. Hutchison, Pamela A. Wright, Jeffrey M. Ryan
  • Patent number: 8493946
    Abstract: Network devices in a multi-network wireless mesh network environment identify themselves as members of the network by receiving a broadcast message from a first mesh network device that has joined the wireless mesh network, and identifying that the broadcast transmission has been received such as by actuating a light, playing a sound, or sending an identifying reply message back to a broadcasting mesh network device.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 23, 2013
    Assignee: Digi International Inc.
    Inventor: Damon M. Stewart
  • Patent number: 8462707
    Abstract: Wireless mesh network nodes in a mesh network are operable to join a desired wireless mesh network in a multi-network environment. The nodes search for a compatible mesh network, find a compatible mesh network, join the found compatible mesh network, indicate whether the joined mesh network is the desired mesh network, and receive input causing the network node to withdraw from the joined mesh network and search for other mesh networks to join if desired network has not been joined.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 11, 2013
    Assignee: Digi International Inc.
    Inventor: Jordan Husney
  • Patent number: 8462663
    Abstract: The physical position of a movable node in a network is determined by sending a broadcast message from the movable node repeated through a path comprising at least a first node, a second node, and a third node, wherein the first, second, and third nodes have known locations. The movable node receives the broadcast message from the first, second, and third nodes, and measures the time from sending the repeated broadcast message to the time the broadcast message is received from each of the first, second, and third nodes. The movable node determines the distance from the movable node to the first, second, and third network nodes by using at least a known turnaround time and known message propagation velocity, such that the position of the movable node is determined.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: June 11, 2013
    Assignee: Digi International Inc.
    Inventor: Paul A. Dahl
  • Patent number: 8458335
    Abstract: A method and apparatus for relationship management of devices utilizing a network are described. A service aggregator receives information from a device and sends information to the device directing the device to communicate with a service provider.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 4, 2013
    Assignee: Digi International Inc.
    Inventor: David Holzer
  • Publication number: 20130114489
    Abstract: A set sleep period is coordinated among a plurality of mesh network nodes to conserve power. A controller is synchronized with an existing wireless mesh network by sending a network synchronization signal from the controller indicating that sleep timing information is lost, and receiving a reply from one or more wireless mesh network nodes within the existing wireless mesh network comprising sleep timing information for the wireless mesh network.
    Type: Application
    Filed: December 31, 2012
    Publication date: May 9, 2013
    Applicant: Digi International Inc.
    Inventor: Digi International Inc.
  • Publication number: 20130114582
    Abstract: A wireless mesh network system includes a first wireless mesh network device supporting a first wireless mesh network device protocol. An application supporting a second wireless mesh network device protocol is executed, and a driver translates between the application's second wireless mesh network device protocol and the first wireless mesh network device protocol such that the application can exchange data with the first wireless mesh network device.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicant: Digi International Inc.
    Inventor: Jordan Husney
  • Publication number: 20130109404
    Abstract: In one example, wireless mobile device data is provided to a building control system by sending location data from a wireless mobile device to an Internet-based service, receiving the location data from the wireless mobile device in the Internet-based service, determining an associated building control system from the wireless mobile device identity, sending data derived from the location data to the building control system, and implementing a change in the building control system based on the sent data derived from the location data.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 2, 2013
    Applicant: Digi International Inc.
    Inventor: Jordan Husney
  • Publication number: 20130110996
    Abstract: Various embodiments include a method and system for configuring a smart energy network using a link key database. An energy services interface, on the smart energy network, extracts a unique identifier associated with a smart energy device from a communication with the smart energy device. The energy services interface may then use the unique identifier to receive information associated with the smart energy device from the link key database.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 2, 2013
    Applicant: Digi International Inc.
    Inventor: Joel K. Young
  • Publication number: 20130104395
    Abstract: In an example, a method includes aligning a pin of a surface mount module with a corresponding first pin of a header pin assembly of a socket assembly of a circuit board. The first pin includes a first portion configured to electrically couple to the circuit board. A second portion includes a retention feature configured to selectively retain the second portion in engagement with the pin of the surface mount module. The surface mount module is moved in a first direction toward the circuit board, wherein the pin of the surface mount module pushes against the second portion to move the second portion to a second position to allow the pin of the surface mount module to pass by the retention feature. The second portion is configured to move back toward a first position once the pin is moved past the retention feature to engage the pin.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 2, 2013
    Applicant: Digi International Inc.
    Inventor: Digi International Inc.
  • Publication number: 20130106439
    Abstract: Distance between two devices is determined by sending a digital signal from a first device to a second device, and receiving a repeated signal from the second device in the first device. The repeated signal comprises the digital signal sent from the first device resent by the second device. A time difference between the sent digital signal and the received repeated signal is determined by providing both the sent digital signal and the received repeated signal to a logic gate, the output of the logic gate indicating whether the digital signal and the received repeated signal are at same or different states. The output of the logic gate is evaluated to determine an approximate distance between the first device and the second device.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 2, 2013
    Applicant: Digi International Inc.
    Inventor: Paul A. Dahl
  • Patent number: 8433269
    Abstract: An apparatus, such as an antenna assembly, can include a flexible dielectric sheet, a first flexible conductor coupled to the flexible dielectric sheet, a second flexible conductor coupled to the flexible dielectric sheet, a matching section electrically coupled to the first and second conductors, and a hollow dielectric housing having a curved interior surface. The first and second flexible conductors can be sized, shaped, and laterally spaced a specified distance from each other to provide a specified input impedance corresponding to a specified range of operating frequencies for use in wireless information transfer between the antenna assembly and a satellite. The first and second flexible conductors can be located along the curved interior surface of the hollow dielectric housing following an arc-shaped path along the curved interior surface.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 30, 2013
    Assignee: Digi International Inc.
    Inventors: Robert Wayne Ridgeway, Paul A. Dahl
  • Patent number: 8424024
    Abstract: A method and system are illustrated to redirect serial device requests from an application on a computer to a plurality of serial devices connected to the computer via a network. The method and system include receiving serial device requests from one or more applications existing on the computer. Each serial device request may be associated with a specific application protocol and directed to one of the plurality of serial devices over the network. The method and system include determining, for a respective serial device request, an application protocol associated with the respective serial device request and forwarding the respective serial device request as a serial redirector message according to the determined application protocol. The method and system include associating the forwarded serial redirector message with a transport protocol.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: April 16, 2013
    Assignee: Digi International Inc.
    Inventor: Harald Remmert
  • Publication number: 20130070864
    Abstract: A system and method of encoding information in a preamble used in a frequency agile radio network.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 21, 2013
    Applicant: Digi International Inc.
    Inventor: Helaman David Pratt Ferguson
  • Patent number: 8397206
    Abstract: A markup language file comprises software build options usable to determine at least one software build configuration setting. One or more software build options are specified in a markup language file to specify one or more software build configuration settings for use in compilation of software. The markup language is an XML file, is editable in an Integrated Development Environment such as via a Graphical User Interface, and includes settings specific to an embedded processor system configuration.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: March 12, 2013
    Assignee: Digi International Inc.
    Inventors: Steven L. Halter, Adam D. Dirstine, David J. Hutchison, Pamela A. Wright, Jeffrey M. Ryan
  • Patent number: 8391496
    Abstract: Various embodiments include a method and system for configuring a smart energy network using an auxiliary gateway where an auxiliary gateway is capable of communicating with an energy services interface and a link key database. The auxiliary gateway, on a smart energy network, extracts the unique identifier from a communication related to the smart energy device. The auxiliary gateway may then use the unique identifier to retrieve the smart energy device information from the link key database and communicate the smart energy device information to the energy services interface. The energy services interface may then use the smart energy device information to decrypt a communication from the smart energy device or access manufacturer specific functionality of the smart energy device.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 5, 2013
    Assignee: Digi International Inc.
    Inventor: Joel K. Young
  • Patent number: 8381252
    Abstract: A system for pulling video content over a data communications network. The system comprises at least one video display, at least one video file server containing a number of video files to be selectively displayed on the at least one video display, at least one media server to communicate with one or more video displays, a web client to communicate with each media server through a network to configure at least one playlist in the media server, each playlist including at least one identifier to select one or more of the number of video files, and each media server being adapted to pull video content from a selected video file in a selected video file server based on the playlist and to translate the pulled video content into a video output signal suitable for display on the video display.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: February 19, 2013
    Assignee: Digi International Inc.
    Inventor: Joel K. Young
  • Patent number: 8378848
    Abstract: Various embodiments include a virtual meter. The virtual meter includes a controller configured to communicate, with a utility meter, meter information, using a first communications protocol. The controller may also be configured to translate between the meter information and virtual meter information. The controller may further be configured to communicate, with a smart energy network, the virtual meter information using a second communications protocol. Other devices and methods are disclosed.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: February 19, 2013
    Assignee: Digi International Inc.
    Inventors: Joel K. Young, David Mayne
  • Patent number: 8363569
    Abstract: A system and method for joining nodes from a first and a second subnet into a network. A probability is established that a node within the first subnet will enter scout mode during its sleep interval, wherein the probability is less than 100%. If the node enters scout mode, a message is broadcasted from the node in scout mode to other nodes inviting nodes in other subnets to join with the first subnet, wherein the message includes the node's network identifier. If the message broadcasted by the node in scout mode is detected by a node in a second subnet, the node in the second subnet determines whether nodes in the second subnet have the same network identifier as the network identifier in the message broadcast by the node in scout mode. If the nodes in the second subnet have the same network identifier as the network identifier in the message broadcast by the node in scout mode, the nodes in the first and second subnets are combined into a combined network.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: January 29, 2013
    Assignee: Digi International Inc.
    Inventor: Robert P. Byard