Patents Assigned to Mitel Corporation
  • Patent number: 6075851
    Abstract: A method of routing calls, messages or information (call routing) comprising storing in a memory a database representing a relationship or organization roles, including names of persons filling the roles and call directory numbers associated with the roles, in response to a request to complete a call to a particular directory number associated with one of the roles, looking up in the database a directory number associated with one of the roles, and processing the call as if the call were directed to the further directory number.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: June 13, 2000
    Assignee: Mitel Corporation
    Inventors: Deborah L. Pinard, Ronald A. Evans
  • Patent number: 6074946
    Abstract: A method of fabricating a semiconductor device includes etching holes through at least one deposited layer to an underlying structure. A hard mask is deposited on an upper surface of a device to be etched, the mask is patterned with the aid of a photoresist, and holes are etched in the hard mask. After removal of the photoresist, contact or via holes are etched through the patterned hard mask in the deposited layer(s) to reach the underlying structure.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: June 13, 2000
    Assignee: Mitel Corporation
    Inventors: Luc Ouellet, Abdellah Azelmad
  • Patent number: 6047062
    Abstract: A method of updating speedcall numbers stored in a database comprises the steps of receiving an incoming call at a local telephone station, extracting data representing the calling party's name and telephone number from the incoming call, and comparing the extracted data with name and number data stored in a database in the local telephone station. The number data in the local telephone station is updated when the extracted data and the stored data does not match.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: April 4, 2000
    Assignee: Mitel Corporation
    Inventor: Ed Bijman
  • Patent number: 6018571
    Abstract: An interactive system include a software application and a telephone which function cooperatively to implement a multiplicity of user-invoked features. The telephone set is connected to a computer on which a telephony application program interface application is executed. The telephone set includes a plurality of user-definable function keys in addition to the standard keypad, handset, speaker phone and other standard components. The user-definable function keys are programmable via the computer to implement telephony features or to launch applications on the computer.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: January 25, 2000
    Assignee: Mitel Corporation
    Inventors: Michael Langlois, Richard Loen, Duncan Smith, Michael Lahrkamp, Paul Chehowski, Peter Couse
  • Patent number: 6006088
    Abstract: An intelligent cordless telephone interface device for connection to a telephone line is means responsive to an incoming call on the telephone line to determine the identity of the caller. The device communicates with a cordless telephone to convey the identity of the caller to the user and is responsive to input from the user via the cordless telephone to handle the incoming call in the desired manner, for example to direct it to an answering machine, send an announcement to the caller or the like.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: December 21, 1999
    Assignee: Mitel Corporation
    Inventor: Peter Couse
  • Patent number: 5999592
    Abstract: A method of reporting an event to a monitoring station in a network of communication switching exchanges comprised of monitoring in each exchange for events to be reported, upon detection of the event, the exchange in which the event occurred automatically dialing a gateway network node to which a network monitoring station is connected, upon the network node responding to the automatic dialing, sending at least one DTMF signal containing a report of the nature of the event and an identification of the exchange in which the event occurred to the network node for provision to the network monitoring station.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: December 7, 1999
    Assignee: Mitel Corporation
    Inventor: Mark R. Sestak
  • Patent number: 5999533
    Abstract: A method of controlling the supply of cells into an asynchronous network, comprises the steps of storing incoming bytes from multiple channels in respective channel buffers, creating in memory a timing event wheel partitioned into a plurality of sectors, of which one is active at any time, and placing cell pointers in the sectors. The cell pointers identify channel buffers and are distributed around the wheel in accordance with a desired transmission schedule. The wheel is stepwise advanced at a predetermined rate, and the cell pointers in the active sector are scanned at each advance of the wheel to identify the corresponding channel buffers. The bytes from the identified channel buffers are assembled into cells, which are forwarded for transmission over the asynchronous network. These are then multiplexed with VBR cells from another source.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: December 7, 1999
    Assignee: Mitel Corporation
    Inventors: Mauricio Peres, Hojjat Salemi, Michel Laurence
  • Patent number: 5991784
    Abstract: A circuit for applying a predetermined algorithm to an input signal, has an input for receiving the input signal, a signal processing device for processing the input signal in accordance with the predetermined algorithm, and a device for outputting the processed signal. The signal processing device incorporates distributed bit-serial logic circuits to implement the predetermined algorithm.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: November 23, 1999
    Assignee: Mitel Corporation
    Inventor: Gordon J. Reesor
  • Patent number: 5987117
    Abstract: A method of sharing a load of incoming calls to a first automatic call distribution (ACD) system with a second ACD system, comprising: establishing at each of the first and second ACD systems divert start service levels each comprising an average wait time of incoming calls before being answered of a predetermined number of incoming calls during a sample period, monitoring a local service level at each of the ACD systems, and diverting incoming calls from one of the ACD systems to the other of the ACD systems for answering thereof in the event the local service level of the one of the ACD systems is longer than its local divert start service level.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: November 16, 1999
    Assignee: Mitel Corporation
    Inventors: Douglas McNeil, Steven P. Pequegnat
  • Patent number: 5980269
    Abstract: A printed circuit assembly comprises a first printed circuit (5) having conductive (4) paths formed on a top surface (27) thereof and a second printed circuit (1) having conductive paths (2) formed on a top surface thereof. The first printed overlies the second circuit in a staggered relationship so that an edge thereof lies on the top surface of the second printed circuit. The second printed circuit has a portion protruding beyond this edge. A first set of contact members (13) is formed on the first printed circuit adjacent its edge. A second set of corresponding contact members (14) is formed on the protruding portion of the second printed circuit in opposing relationship to the first set of contact members. A sheet member is fitted over the printed circuits and carries bridging members for establishing electrical contact between corresponding pairs of contact members.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: November 9, 1999
    Assignee: Mitel Corporation
    Inventor: Rob McLeod
  • Patent number: 5982767
    Abstract: A merged voice and data communications system, comprises a TDM-based broadband backbone carrying packet data, a plurality of LAN segments interconnected via said broadband backbone, a plurality of telephone subsystems, each comprising a plurality of telephone circuits connected to a subsystem multiplexer, and a central telephone controller. Circuits are established to carry telephone traffic over said broadband backbone between the central controller and several subsystem multiplexers independently of the packet data. Telephone calls can be routed over the broadband backbone to any of the telephone circuits without interfering with the packet data and without requiring separate physical links.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: November 9, 1999
    Assignee: Mitel Corporation
    Inventor: Evan McIntosh
  • Patent number: 5974084
    Abstract: According to the present invention, a method is provided enabling an analog modem to dial out while a dial tone is interrupted or stuttered due to at least one unheard message at a Central Office for a subscriber to Call Answer is provided . Call Answer is an automated voice messaging system which causes the dial tone of a phone line connected to the modem, to be either interrupted or stuttered when a message is waiting for the subscriber. Users of the present invention are able to receive on-line access faster than users of the prior art. The method of the present invention implements a software program within the modem. By comparing the elapsed length of the dial tone with two predetermined time values (a maximum and a minimum), the method detects the presence and status of the dial tone and informs the modem of the status of the dial tone. Provided that a dial tone is present, whether uninterrupted, interrupted or stuttered, the modem proceeds to dial out.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: October 26, 1999
    Assignee: Mitel Corporation
    Inventor: To Van Tran
  • Patent number: 5970068
    Abstract: A telecommunications system comprises a plurality of servers interconnected by a TDM backbone and able to share a common channel or bandwidth. An arrangement for sending messages or files between said servers comprises a master node for sending a continuous stream of cells round the backbone, each cell having a header portion and a payload portion, and a plurality of downstream nodes which upon arrival of incoming cells insert information therein, read information therefrom, or allow the cells to pass thereby unaltered.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: October 19, 1999
    Assignee: Mitel Corporation
    Inventors: Tom Gray, Lee De Korte, Mauricio Peres
  • Patent number: 5967854
    Abstract: An arrangement for connecting a printed circuit to a plug of the type having a plurality of parallel contacts located on the edge of an insertion block provided with a resilient detent, includes a housing containing the printed circuit, and an opening in the housing for retaining the insertion block therein. A flexible extension of the printed circuit has parallel contacts formed thereon. The flexible extension extends at an angle through the opening so that the parallel contacts thereon make contact with the parallel contacts on an insertion block retained in the opening.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: October 19, 1999
    Assignee: Mitel Corporation
    Inventor: Peter Craig
  • Patent number: 5960209
    Abstract: A distributed architecture parallel processing apparatus, includes a central microprocessor having at least one external interface connected to a similar interface of a neighboring parallel processor. The processors exchange data and control signals through the interfaces to cooperatively share in the execution of a program. An inter-processor status register in each processor maintains the current status of the processors.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: September 28, 1999
    Assignee: Mitel Corporation
    Inventors: Harold Blount, Alexander Tulai
  • Patent number: 5949765
    Abstract: The present invention provides a multiplexor architecture and method that manipulates multiple telephony lines onto one virtual line which can then be monitored and controlled by an application on a desktop computer originally designed to handle only a single line. The multiplexor of the present invention provides transparent telephony line manipulation which to the telephony line manager, appears as a telephony service provider component. To the telephony service provider component, the present invention appears as the telephony line manager.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: September 7, 1999
    Assignee: Mitel Corporation
    Inventors: Richard Deadman, Pat Orchard
  • Patent number: 5949873
    Abstract: A method of operating a communication switching system in conjunction with a PBX comprising: storing at the PBX equipment station identifiers in association with directory numbers, storing at the switching system the station identifiers in conjunction with the directory numbers and a PBX identifier, in the event of a station connected to the PBX going offhook, looking up at the PBX a station identifier associated with a directory number assigned to the offhook station, transmitting the looked up station identifier to the switching system, and upon receiving the transmitted station identifier at the switching system, looking up the corresponding directory number, and changing characteristics of a line between the switching system and the PBX over which communication is to take place, to suit predetermined characteristics based on the corresponding directory number.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: September 7, 1999
    Assignee: Mitel Corporation
    Inventor: Deborah L. Pinard
  • Patent number: 5940834
    Abstract: The web page generator of the present invention provides for automatic web page creation of an organizational directory for use in an Internet and Intranet environment. The web page directory is created from data stored in the directory application component of the web page generator and, after being placed on a web server, allows any individual who has network access to the web server offering the web page to view the directory information in a web page format. In another aspect of the present invention, the web page generator generates the directory web pages dynamically on an as requested basis. In another aspect of the present invention, the web page generator also provides for an interface to a Private Branch Exchange (PBX) telephone switch for automatic access to PBX functions through the web page automatically generated in accordance with the principles of the invention.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: August 17, 1999
    Assignee: Mitel Corporation
    Inventors: Debbie Pinard, Richard Deadman
  • Patent number: D421264
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: February 29, 2000
    Assignee: Mitel Corporation
    Inventor: David Nogas
  • Patent number: D423497
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: April 25, 2000
    Assignee: Mitel Corporation
    Inventor: David Nogas