Assignee: Digi International Inc.

Location: Minnetonka, MN
No. of patents: 39

Number	Title	Issue Date
8166099	Method and apparatus for associating network entities A method and apparatus for associating network entities, such as devices and services have been disclosed. By utilizing context operational modifiers, such as context rules, context definitions, and context services, entities may be associated. ...	04/24/2012
8036138	System and method for optimized initial configuration distribution for cyclic sleeping devices Various embodiments include a method and system for optimizing the initial configuration of cyclic sleeping devices on a wireless network. The devices, or nodes, may need additional configuration by a configuration device after being placed on the network. Some node...	10/11/2011
8015333	Method and apparatus for the detection of the end of a daisy chain A method and apparatus for detecting the end of a daisy chain are described. A node receives an M-wide bit input, terminates K bits of the input, shifts and outputs the remaining M-K bits, and drives from the node K bits onto the output. ...	09/06/2011
7991870	Method and apparatus for a client connection manager A method and apparatus for a connection manager have been disclosed. By providing for persistent connections with clients, the connection manager allows for servers to communicate with clients, which would otherwise be inaccessible. ...	08/02/2011
7941687	Method and apparatus for digital I/O expander chip with multi-function timer cells A method and apparatus for digital I/O expander chip with multi-function timer cells have been disclosed. A series of match reload registers load a series of match registers which are driven by a master counter. The status of the match registers can be retrieved thr...	05/10/2011
7877073	Superheterodyne receiver having at least one downconversion stage empolying a single image reject filter stage and both low-side injection and high-side injection of a local oscillator signal A multi-channel superheterodyne receiver employs a low intermediate frequency (IF) and both high-side injection and low-side injection of a selected local oscillator (LO) signal into the mixer in order to position image frequencies outside the passband of a single i...	01/25/2011
7827601	Method and apparatus for firewall traversal A method and apparatus for traversing a firewall are described. ...	11/02/2010
7761621	Embedded virtual serial port A system comprising a communication (COM) port server that, together with a COM port client, establishes COM port redirection over a network and communicates data with a serial port, at least one embedded application which is configured to communicate data via a ser...	07/20/2010
7721238	Method and apparatus for configurable printed circuit board circuit layout pattern A method and apparatus for inputting a plurality of different circuit schematics designed with printed circuit board (PCB) mountable components; extracting circuit topologies for said plurality of different circuit schematics; transforming said extracted circuit top...	05/18/2010
7689675	System and method for communicating with console ports In a console server having a user interface and one or more ports, a system and method of accessing devices connected to the ports. A device connected to one of the ports is recognized, wherein recognizing includes recording in a port log information received throug...	03/30/2010
7644160	Login specific virtual ports A system and method of mapping remote ports so that they appear as local ports. One or more accounts is created, including a first and a second account, wherein the first account is assigned to a first user and the second account is assigned to a first computer. A p...	01/05/2010
7631349	Method and apparatus for firewall traversal A method and apparatus for traversing a firewall are described. ...	12/08/2009
7574431	Remote data collection and control using a custom SNMP MIB A Management Information Base (MIB) in a computer device adapted to use Simple Network Management Protocol (SNMP). The MIB comprises at least one message construct to function as a definition for a constrained attribute set for an object in a remote device that has ...	08/11/2009
D564502	Radio modem with circuit board	03/18/2008
7308570	System and method for booting embedded systems using removable storage A system and method of booting an embedded system having a processor, nonvolatile memory and a remote media interface connected to the processor. Boot code is executed within the nonvolatile memory. The processor determines if a storage device is connected to the re...	12/11/2007
7265588	Dynamic clock change circuit A clock change circuit includes enabling a clock change frequency to be accepted while a system is active and clock frequencies are at a low period. The circuit includes generating an enabling signal representing a window of time in which a frequency change is accom...	09/04/2007
7240229	System and method for routing data and power to external devices A system, method and kit for forming a powered communications interface in a computer system having a computer housing. A processor, a power supply and a communications interface are installed in the computer housing. The power supply includes a ground rail, a first...	07/03/2007
7219180	Combined uninterruptable power supply and bus control module to improve power management and legacy support A system and apparatus providing power management and legacy support. An uninterruptable power supply is combined with a bus control module. The bus control module provides legacy support through a single connectivity. The bus control module monitors and controls po...	05/15/2007
7206928	System boot method A method includes powering up a system with a system control circuitry (SCC) that contains a central processing unit (CPU). The method includes holding the CPU in a reset condition. The method also includes retrieving, over a serial data bus using a serial communica...	04/17/2007
7185136	Methods and systems for remotely accessing universal serial bus devices Methods and systems for remotely accessing a universal serial bus device are provided. A requesting device issues a request for a universal serial bus device. The request is intercepted and packaged and then transmitted over a network. The packet is received by a un...	02/27/2007
7177265	Iterative method, and apparatus for acquiring time and frequency synchronization in a DSSS receiver A method and apparatus for acquiring time and frequency synchronization in a DSSS receiver are disclosed. An iterative approach is used in acquiring a DSSS signal when the phase coherency of the signal is less than the symbol length. ...	02/13/2007
7152111	Method and apparatus for a client connection manager A method and apparatus for a connection manager have been disclosed. By providing for persistent connections with clients, the connection manager allows for servers to communicate with clients, which would otherwise be inaccessible. ...	12/19/2006
7035257	System and method to discover and configure remotely located network devices To permit discovery and configuration of a remotely located network server element by a client element of a local network device, the client sends a multicast discovery protocol request packet. The server element may monitor packets received at a pre-configured disc...	04/25/2006
6904489	Methods and systems for remotely accessing universal serial bus devices Methods and systems for remotely accessing a universal serial bus device are provided. A requesting device issues a request for a universal serial bus device. The request is intercepted and packaged and then transmitted over a network. The packet is received by a un...	06/07/2005
6904530	Bus control module for improving legacy support Systems, devices and methods are provided for expanding an interface to a computer. According to one aspect, a device is provided, including a backplane and at least one expansion card. The backplane includes at least one expansion slot and an upstream connector for...	06/07/2005
6886063	Systems, devices, structures, and methods to share resources among entities Systems, devices, structures, and methods are provided to allow resources to be shared among a plurality of processors. An exemplary system includes a mechanism to grant exclusive control of a resource to a processor, while at the same time, the fast memory of such ...	04/26/2005
6836796	System and method to manage network-enabled embedded devices operating under various protocols A device management system (DMS) enables a plurality of network-enabled embedded devices potentially having a variety of device protocols to communicate via a network with a remote device system server. The DMS includes a back-end management applications server, and...	12/28/2004
6826640	Bus bandwidth control system A system includes a central processing unit (CPU), one or more input/output (I/O) ports designed to connect with external devices, a data bus connecting the CPU with the I/O ports, bus request and grant channels, and a bus arbiter that executes a repetitive series o...	11/30/2004
6826505	System and method for testing a communications server A system and method of testing a bank of modems. A test bed includes a RAS concentrator, wherein the RAS concentrator includes means for spoofing operation of a plurality of analog modems. The RAS concentrator is connected to a communication server having one or mor...	11/30/2004
6785719	Distributed systems for providing secured HTTP communications over the network A method of distributing computations is provided. The method includes receiving a secure Hypertext Transfer Protocol request over secured sockets layer, and routing the request to an SSL handler that is distributed on a network of computer systems. Secured sockets ...	08/31/2004
6775303	Dynamic bandwidth allocation within a communications channel A communications device is presented that allows dynamic bandwidth allocation of an unswitched data path based upon the current utilization of one or more switched data channels. The device operates over the local loop of a digital communications carrier, such as a ...	08/10/2004
6643717	Flow control A method for controlling a transmitter for a serial data port is provided. The method includes receiving a set of data at the serial data port. The data in the set of data is compared with a selected pattern of bits. When data in the set of data matches t...	11/04/2003
6629164	Character counter and match registers in a serial interface A method is described for controlling commands and data in a serial data stream received by a serial controller in a serial interface. A character count register is programed with a maximum number of characters that a serial controller will send to a dire...	09/30/2003
6614801	Circuits and methods for detecting the mode of a telecommunications signal A method for detecting the mode of a telecommunications signal is provided. The method receives the telecommunications signal and contemporaneously evaluates the telecommunications signal for compliance with at least two signal modes. When the evaluation ...	09/02/2003
6373885	Circuit and method for detecting an escape sequence A method for selecting the operational mode of a modem is provided. The method determines the number of characters in a data packet directed to a modem when the modem is not in time independent escape sequence (TIES) mode of operation. The method bypasses...	04/16/2002
6047319	Network terminal server with full API implementation A terminal server for providing communication between a host computer and a synchronous, asychronous or parallel communications port across a general purpose network is provided utilizing a unique device driver interface and multiplexing communication pro...	04/04/2000
6034973	Subscriber loop extension system for ISDN basic rate interfaces A system and method for reducing signal attenuation of integrated services digital network (ISDN) digital transmissions at the subscriber loop, thereby increasing the available subscriber loop range, is provided. An ISDN digital transmission system is use...	03/07/2000
6012110	Apparatus and method for input data loss prevention with a buffered UART An apparatus for handling data at two or more ports is described. In one embodiment, the apparatus comprises an apparatus for receiving data at multiple ports, each port having a buffer capable of holding B units of received data and being serviced by a p...	01/04/2000
6009106	Dynamic bandwidth allocation within a communications channel A communications device is presented that allows dynamic bandwidth allocation of an unswitched data path based upon the current utilization of one or more switched data channels. The device operates over the local loop of a digital communications carrier,...	12/28/1999

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Assignee: Digi International Inc.