Patents Assigned to Mitel Knowledge Corporation
  • Patent number: 7298708
    Abstract: In a method of registering an IP device in a network where one of a plurality of servers in the network has provided to the IP device an IP address for a controller for which the IP device has not been programmed, the improvement comprising accessing a database to obtain a further IP address for a designated controller for which the IP device has been programmed.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: November 20, 2007
    Assignee: Mitel Knowledge Corporation
    Inventors: Katayoun Nasiri, Monique Zellerer
  • Patent number: 7292685
    Abstract: A system is provided for pro-actively suggesting communication features to users, comprising a tuple space for facilitating collaboration among software agents, a plurality of device agents for controlling operation of associated communication devices for respective ones of the users, and a plurality of user agents representing a plurality of users, each of the user agents (i) facilitating creation, by a user desirous of communicating, of groups of users to be communicated with, (ii) poking tuples to the tuple space indicative of each user's availability for communication; (iii) peeking anti-tuples to the tuple space for eliciting communication availability of respective ones of the users in the groups of users to be communicated with and in response causing associated device agents to display via respective ones of the devices the aforementioned availability to the user desirous of communicating, and to effect communication between the user desirous of communicating and a selected one of the respective users
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: November 6, 2007
    Assignee: Mitel Knowledge Corporation
    Inventor: Thomas Gray
  • Patent number: 7197139
    Abstract: A telephone set includes a cradle for receiving a selected electronic device, such as a Personal Digital Assistant (PDA). The cradle comprises a cradle base and a cradle cover coupled to the cradle base. The cradle cover includes a support for selectively securing the selected electronic device thereto. Means for coupling the cradle to the telephone set, which preferably comprises a snap device, is provided. A connector is coupled to the cradle in order to enable communication between the selected electronic device and the telephone set. The cradle can be selectively removed from the telephone set by decoupling the cradle base from the telephone set.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: March 27, 2007
    Assignee: Mitel Knowledge Corporation
    Inventors: Robert Charles Templin, Toby John Kemp, John Mahan, Anders Fahrendorff
  • Patent number: 7187765
    Abstract: A method of determining when to save default coefficients in an echo canceller so as to ensure that the capture of coefficients that correspond to the best possible echo cancellation in a current condition. Coefficients are saved at varying times depending on the amount of echo removed by the echo canceller. More particularly, the present method involves constantly monitoring the error signal to the echo canceller and comparing it with the error signal that would be obtained if default coefficients were to be used instead of the current coefficients. This ensures that the default coefficients are upgraded each time the current set of coefficients is better than the saved default coefficients.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: March 6, 2007
    Assignee: Mitel Knowledge Corporation
    Inventors: Mirjana Popovic, Xin Xu
  • Patent number: 7062005
    Abstract: The present invention relates to a system for synchronising slave and master timing, comprising a phase adjust circuit for receiving and delaying an arbitrary clock signal by an adjustable amount and outputting a delayed clock signal related to the slave timing, and a master phase detector and lock circuit for comparing relative phases of the master and slave timing and in response generating and applying delay adjust signals to the phase adjust circuit at a dynamically adjusted rate which is related to the relative phase in order to synchronise the slave and master timing and is thereafter reduced to a minimum rate required to maintain synchronisation of the slave and master timing.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 13, 2006
    Assignee: Mitel Knowledge Corporation
    Inventor: Paul Gresham
  • Patent number: 7035420
    Abstract: An acoustically resistive membrane is incorporated into a gasket construction for use with a microphone. Preferably, a molded thermoplastic gasket is provided with an integrated acoustically resistive element in the form of a thin perforated membrane that is molded into the gasket at an appropriate location for optimum acoustic performance.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: April 25, 2006
    Assignee: Mitel Knowledge Corporation
    Inventors: Philippe Moquin, Stephane Dedieu
  • Patent number: 7035389
    Abstract: A system is provided for pro-actively suggesting communication features to users, comprising a tuple space for facilitating collaboration among software agents, a plurality of device agents for controlling operation of associated communication devices for respective ones of the users, and a plurality of user agents representing a plurality of users, each of the user agents (i) facilitating creation, by a user desirous of communicating, of groups of users to be communicated with, (ii) poking tuples to the tuple space indicative of each user's availability for communication; (iii) peeking anti-tuples to the tuple space for eliciting communication availability of respective ones of the users in the groups of users to be communicated with and in response causing associated device agents to display via respective ones of the devices the aforementioned availability to the user desirous of communicating, and to effect communication between the user desirous of communicating and a selected one of the respective users
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: April 25, 2006
    Assignee: Mitel Knowledge Corporation
    Inventor: Thomas Gray
  • Patent number: 7030733
    Abstract: A system for providing power to a local area network LAN connected device via spare wire pairs from a phantom feed LAN, the system comprising a first connector for connecting to the LAN connected device; a second connector for connecting to a LAN hub; and means for redirecting current from signaling wires of said second connector to at least one spare wire pair of said first connector.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: April 18, 2006
    Assignee: Mitel Knowledge Corporation
    Inventor: Hamidreza Abbarin
  • Patent number: 7024184
    Abstract: A system and method of controlling the delivery of an incoming call directed to a wireless communication device is provided. When an incoming call directed to the wireless communication device is received, the location of the wireless communication device, to which the incoming call is destined, is determined. If the wireless communication device is not within a designated zone, the incoming call is directed to the wireless communication device. If the wireless communication device is in a designated zone, the incoming call is handled based on specified criteria.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: April 4, 2006
    Assignee: Mitel Knowledge Corporation
    Inventors: Paul Andrew Erb, Maciej Syrowatka
  • Patent number: 6990193
    Abstract: A method is set forth of controlling an acoustic echo canceller at the output of a beamformer in an audio conferencing device. Information is saved to, and retrieved from, memory that characterizes each of a finite number of look directions, or regions of focus, covering the entire spatial span of the conferencing device. Each time a change occurs from a first look direction to a second look direction, information relating to the workspace captured by the acoustic echo canceller is saved for the first look direction, and previously saved information for the second look direction is retrieved from memory. The acoustic echo cancellation then takes place for the second look direction with the retrieved information.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: January 24, 2006
    Assignee: Mitel Knowledge Corporation
    Inventors: Franck Beaucoup, Michael Tetelbaum
  • Patent number: 6956830
    Abstract: An echo cancellation system for detecting and canceling echo from a network speech path, comprising a pool of echo locators for detecting pure echo delay and dispersion of time, a pool of echo cancellers, a pool of line watchdogs for detecting presence or absence of echo in the network speech path, and a control system for (i) locating and applying an echo locator from the pool of echo locators to the network speech path for detecting the pure echo delay and dispersion of time of any echo in the network speech path, and thereafter returning the echo locator to the pool of echo locators; (ii) locating and applying an echo canceller from the pool of echo cancellers to the network speech path for canceling the echo using the pure delay and dispersion time, and thereafter returning the echo canceller to the pool of echo cancellers; and (iii) locating and applying a line watchdog from the pool of line watchdogs to the network speech path for detecting said presence or absence of echo, and in the event the presence
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: October 18, 2005
    Assignee: Mitel Knowledge Corporation
    Inventors: Mirjana Popovic, Dieter Schulz, Jan Radecki
  • Patent number: 6941178
    Abstract: A method and system for remote programming of serialized semiconductor devices using web or Internet protocols. Semiconductor device programmers access at least one web server for unique numbers to program the serialized semiconductor devices.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: September 6, 2005
    Assignee: Mitel Knowledge Corporation
    Inventors: David Watson, Francis Hong Fang Zhu
  • Publication number: 20050180443
    Abstract: A method of controlling a buffer for reducing jitter in a packet network is provided, with a fast attack and a slow decay time to track delay changes in the network. The principal function of the method for controlling the jitter buffer is to minimize the delay within the buffer and use packet loss compensation in the event that the buffer enters an underflow condition.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 18, 2005
    Applicant: Mitel Knowledge Corporation
    Inventors: Dieter Schulz, Lee Dilkie
  • Patent number: 6931533
    Abstract: A hardware authentication system and method for equipment including at least one removable hardware component comprising a processing unit within the equipment that includes a first pseudo-random number generator responsive to at least one non-deterministic event for generating a pseudo-random number. A second pseudo-random number generator is provided on the removable hardware component. The second pseudo-random number generator is also responsive to the at least one non-deterministic event and generates a pseudo-random number. The processing unit compares the pseudo-random numbers generated by the first and second pseudo-random number generators to detect coincidence and thereby determine authenticity of the hardware component.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: August 16, 2005
    Assignee: Mitel Knowledge Corporation
    Inventor: David Keir Roberts
  • Patent number: 6931491
    Abstract: A hardware-assisted tuple space, comprising a tuple memory for storing tuples of key-value pairs of data; an anti-tuple memory for storing anti-tuples of key-value pairs of data; tuple attribute array memory for storing selected attributes of respective ones of the tuples and anti-tuples; and an input/output and memory control interface for (i) exchanging tuples and anti-tuples between an external process and the tuple and anti-tuple memories, (ii) performing preliminary searches of the tuple attribute array memory to identify possible matching tuples and anti-tuples, and (iii) comparing the key-value pairs of the possible matching tuples and anti-tuples to identify actual matching tuples and anti-tuples.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: August 16, 2005
    Assignee: Mitel Knowledge Corporation
    Inventors: Thomas Gray, Derrek Wood, Charles Rae, Aubert Pereira
  • Patent number: 6831965
    Abstract: The present invention relates to an apparatus for testing connection of customer premise equipment to a trunk, comprising a user interface for receiving user commands from a remote location, memory registers for storing indications of trunk type and status, and a controller for initiating automatic trunk tests responsive to the user commands and in response storing the indications of trunk type and status in the memory registers and outputting the indications to said the interface.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: December 14, 2004
    Assignee: Mitel Knowledge Corporation
    Inventors: Marshall William Pharoah, Wilbur A. Carpenter
  • Patent number: 6819665
    Abstract: A network implemented communication system, comprising a Local Area Network (LAN), a plurality of H.323 endpoints connected to the LAN, each of the endpoints including a communication application for communicating via H.323, at least one H.323 Gatekeeper connected to the LAN for third party control of communications between the H.323 endpoints, and software within each of the H.323 endpoints and the H.323 Gatekeeper for implementing features which do not require direct connection between the H.323 endpoints.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: November 16, 2004
    Assignee: Mitel Knowledge Corporation
    Inventors: Debbie Pinard, Harold Sit, Sonya Fullarton, Eliana Peres
  • Patent number: 6816576
    Abstract: A method of generating a tree hierarchy display of error logs received from network devices and applications, each of the logs including a brief description of error cause and predetermined higher level ones of the logs being created in response to generation of predetermined combinations of lower level ones of the logs in accordance with user defined rule set criteria. The method comprises the steps of generating a user interface for entering explanations associated with predetermined ones of the error logs, storing the lower level ones of the logs used in meeting the rule set criteria, and displaying a tree hierarchy of the logs for any fully satisfied rule set criteria by attaching links between the logs in relation to the rule set criteria.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: November 9, 2004
    Assignee: Mitel Knowledge Corporation
    Inventors: Tonis Kasvand, Thomas Gray, Brian Mooy, Dennis Fortin, Audil Virk, Tyler Elliot, Rebecca Jones
  • Patent number: 6804126
    Abstract: A circuit provides a secondary output voltage from an input voltage. The circuit includes power supply circuitry for creating an unregulated DC bus voltage line and a regulator circuit connected to the DC bus voltage line for controlling a first switch in series with a transformer winding. The control circuit samples an output voltage to control the output voltage by cycling the first switch. The circuit further includes a pulse generator circuit connected to the regulator circuit for controlling start and stop cycles of the regulator circuit and a comparator circuit connected to the pulse generator circuit for monitoring the secondary output voltage and for disabling the pulse generator circuit during normal operation of the power supply circuit.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: October 12, 2004
    Assignee: Mitel Knowledge Corporation
    Inventor: Christopher Graham Lucas
  • Patent number: 6801609
    Abstract: A telephone system for permitting multiple users to log in to a plurality of line appearances on a multi-line telephone set in order to access personalized services associated with individual user profiles for the users. The telephone set is provided with individual displays and message notification lights for the individual line appearances. Users identify themselves by logging in to a particular line appearance via telephone key input of user name and password, or other suitable log in function.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: October 5, 2004
    Assignee: Mitel Knowledge Corporation
    Inventors: Sonya Fullarton, Debbie Pinard