Patents Represented by Attorney, Agent or Law Firm Bruce E. Garlick
  • Patent number: 7684528
    Abstract: A filter settings generation operation includes sampling colored noise present at the input of a receiver to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the input present at the receiver is filtered using the filter settings when the signal of interest is present to whiten colored noise that is present with the signal of interest. In modifying the spectral characterization, pluralities of spectral components of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: March 23, 2010
    Assignee: Broadcom Corporation
    Inventors: Eric Ojard, Amit Goutam Bagchi
  • Patent number: 6804530
    Abstract: A base station controller includes circuitry for determining whether a transmitter is transmitting in a DTX mode or operation for a supplemental channel in a CDMA network. The invention includes the steps of determining frame quality metrics for data received on a fundamental and a supplemental channel. If the frame quality metric is good, meaning that the number of errors is below a defined threshold, on the supplemental channel, then the mobile station is not, by definition, within a DTX mode of operation. However, if each of the base stations that are on the active list of base stations for the mobile station report that the mobile station frame quality metric is not below or within a specified threshold, then the base station performs a calculation to determine whether the mobile station is in a DTX mode of operation or is transmitting a null set.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 12, 2004
    Assignee: Nortel Networks Limited
    Inventors: Ashvin H. Chheda, Geng Wu
  • Patent number: 6798740
    Abstract: A method and apparatus selecting between primary switching fabric in an asynchronous transfer mode (ATM) network includes a Tap Mux controller that monitors the signals being transmitted to each of four fabric access devices. As each of the fabric access devices receives nine communication lines, the Tap Mux controller monitors a total for 36 communication lines on the primary switching fabric. Because the switching fabric is completely redundant, however, the Tap Mux controller also monitors a total of 36 communication lines on the protection switching fabric. The Tap Mux controller, therefore, includes logic that defines 72 state machines that each monitor one of the 72 lines. Each state machine, in the described embodiment, initiates a defined length time window and counts errors therein.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: September 28, 2004
    Assignee: Nortel Networks Limited
    Inventors: Tissa Senevirathne, Van Hunter, Sri Reddy
  • Patent number: 6763233
    Abstract: A method for supporting operation of mobile terminal having a subscription in a packet switched wireless network within a legacy wireless network when the mobile terminal roams into the service area of the legacy network. The mobile terminal sends an attach request to a support node of the legacy wireless network. The legacy wireless network then authenticates the mobile terminal. Next, the support node of the legacy wireless network interacts with the packet switched wireless network to receive the mobile terminal's subscriber data. The home subscriber service function of the packet switched wireless network then interacts with a prior support node to cancel the wireless terminals prior location. The support node of the legacy wireless network next requests a visitor location register of the legacy wireless network to register the mobile terminal.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: July 13, 2004
    Assignee: Nortel Networks Limited
    Inventor: Jayshree A. Bharatia
  • Patent number: 6760344
    Abstract: An inventive method and apparatus support quality of service provisioning for a given mobile terminal without requiring changes to established interfaces for the general packet radio service network by assigning a temporary logical link identifier (TLLI) in a manner that implicitly reflects a QoS rating for a mobile terminal. In one embodiment of the present invention, a serving GPRS support node (SGSN) assigns a temporary logical link identifier (TLLI) within a first range for a first QoS rating and within a second range for a second QoS rating. Alternatively, the SGSN assigns a temporary logical link identifier having an even numerical value for a first QoS rating and an odd numerical value for a second QoS rating. Upon receiving a TLLI value, a base station and the corresponding mobile terminal may both evaluate the TLLI number to determine the assigned QoS rating for the mobile and to allocate communication resources in a corresponding manner.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: July 6, 2004
    Assignee: Nortel Networks Limited
    Inventors: Jerry Mizell, James Bankhead, Bala Balachander
  • Patent number: 6753884
    Abstract: A system and method for building GUI screens for a time keeping and expense tracking system includes a time keeping and expense tracking (TKET) server that includes computer instructions that define logic for building GUI screens according to user definitions, communication channel throughput capacity, and terminal capacity. Initially, the TKET server examines a user's ID to determine his group affiliations and ability levels for modifying the parameters, objects and layout of a GUI screen. Thereafter, the TKET server allows the user to make changes according to his defined abilities. For subsequent sessions, the TKET server builds a GUI screen according to the previously defined parameters. The TKET server is operable to act as a remote time clock. Accordingly, the TKET server is formed to receive and interpret signals that define the user ID, an account code, and whether a start or stop timekeeping event has been selected.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: June 22, 2004
    Assignee: Journyx, Inc.
    Inventors: Curtis L. Finch, II, William Leake, William R. Miller, Chris V. Anderson
  • Patent number: 6754191
    Abstract: A system determines an optimal set of base transceiver sets that are to transmit data over supplemental channels to a mobile station. A mobile station transmits periodic signal strength measurement message to rank the pilot signal strengths being received from the plurality of base station transceiver systems. Whenever the number of fundamental channel sectors that are active exceeds the maximum number of active supplemental channel sectors, periodic pilot strength measurement messages are transmitted by the mobile station. To improve resource usage, periodic pilot strength measurement messages are not transmitted as often as required to insure that the active supplemental channel sectors are the ones from which the strongest signals are received by the mobile station. Rather, a combination of periodic pilot strength measurement messages and calculated reverse link signal strength over spectral noise density values are used.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: June 22, 2004
    Assignee: Nortel Networks Limited
    Inventors: David Paranchych, Geng Wu, Ashvin Chheda
  • Patent number: 6754216
    Abstract: A system enables a cell of data to be transmitted one time over a high speed data bus to an Ethernet switch system where it is then distributed to each of the destinations for which it is intended. A first group of buffers is for temporarily storing data that is to be delivered to only one destination. A second group of buffers is for holding the cells that are to be transmitted to a plurality of devices. In the described embodiment of the invention, the unicast and multicast cells are transmitted over the same line or bus. The invention further includes a switch processor that is formed to detect congestion within the switch fabric and to transmit a congestion rating to each device coupled to transmit and receive data through the switch fabric.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: June 22, 2004
    Assignee: Nortel Networks Limited
    Inventors: Michael Wong, Rajesh Nair, Milan Momirov
  • Patent number: 6751650
    Abstract: A system and method for building GUI screens for a time keeping and expense tracking system includes a time keeping and expense tracking (TKET) server that includes computer instructions that define logic for building GUI screens according to user definitions, communication channel throughput capacity, and terminal capacity. Initially, the TKET server examines a user's ID to determine his group affiliations and ability levels for modifying the parameters, objects, and layout of a GUI screen. Thereafter, the TKET server allows the user to make changes according to his defined abilities. For subsequent sessions, the TKET server builds a GUI screen according to the previously defined parameters. One embodiment of the present invention, the TKET server is operable to receive communication signals transmitted by way of a wireless communication channel and to generate corresponding display screens that are responsive to the user terminal type.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: June 15, 2004
    Assignee: Journyx, Inc.
    Inventors: Curtis L. Finch, II, William R. Leake, William Miller, Chris V. Anderson
  • Patent number: 6750885
    Abstract: A system and method for building GUI screens for a time keeping and expense tracking system includes a time keeping and expense tracking (TKET) server that includes computer instructions that define logic for building GUI screens according to user definitions, communication channel throughput capacity, and terminal capacity. Initially, the TKET server examines a user's ID to determine his group affiliations and ability levels for modifying the parameters, objects and layout of a GUI screen. Thereafter, the TKET server allows the user to make changes according to his defined abilities. In one embodiment of the invention, the TKET server is operable to act as a remote time clock. Accordingly, the TKET server is formed to receive and interpret signals that define the user ID, an account code, and whether a start or stop timekeeping event has been selected.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: June 15, 2004
    Assignee: Journyx, Inc.
    Inventors: Curtis L. Finch, II, William R. Leake, William Miller, Chris V. Anderson
  • Patent number: 6747679
    Abstract: A system and method for building GUI screens for a time keeping and expense tracking system includes a time keeping and expense tracking (TKET) server that includes computer instructions that define logic for building GUI screens according to user definitions, communication channel throughput capacity, and terminal capacity. Initially, the TKET server examines a user's ID to determine his group affiliations and ability levels for modifying the parameters, objects and layout of a GUI screen. Thereafter, the TKET server allows the user to make changes according to his defined abilities. For subsequent sessions, the TKET server builds a GUI screen according to the previously defined parameters. One embodiment of the present invention, the TKET server is operable to receive communication signals transmitted by way of a wireless communication channel and to generate corresponding display screens that are responsive to the user terminal type.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: June 8, 2004
    Assignee: Journyx, Inc.
    Inventors: Curtis L. Finch, II, William R. Leake, William Miller, Chris V. Anderson
  • Patent number: 6715609
    Abstract: A case is provided for storing and displaying articles. The case includes a substantially planar base and a substantially planar cover having a similar shape to that of the base and adapted for connection to the base to form an assembly. A peripheral connector is provided for connecting the cover to the base about the respective peripheries thereof, and a central connector is provided for connecting the cover to the base about the respective centers thereof. In a particular embodiment, the peripheral connector and the central connector define an annulus there between when the cover is connected to the base for storing and displaying articles. The case may be adapted for use in a compact disc jewel box having a square base and a square cover hinged to the base.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: April 6, 2004
    Assignee: Gupton, Inc.
    Inventor: Robert Gupton
  • Patent number: 6711402
    Abstract: A mobile station in a cellular telecommunication network includes an apparatus and method for storing a calling party identification signal. This calling party identification signal is transmitted to an originating MSC along with the call set up signals. The originating MSC then transmits the calling party identification signals to an HLR which transmits them to a serving MSC for delivering to the called party mobile station. Accordingly, the method and apparatus support the delivery of calling party identification signals to the called party without requiring the creation and maintenance of databases for storing such information. The mobile station as well as the MSCs adaptive to store the calling party information signals and to receive and transmit the same. The communication signal definitions between the mobile stations MSCs base stations HLRs and VLRs are all adapted to include and support the transmission of the calling party identification signals which are permanently stored in the mobile station.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: March 23, 2004
    Assignee: Nortel Networks Ltd.
    Inventors: Sivananthan Chelliah, John Visser
  • Patent number: 6708034
    Abstract: A mobile station communicates with an RSVP-aware network over an air interface standard that has a wireless quality of service standard. The mobile station transmits an RSVP message to an end terminal through the network's RSVP-enabled routers. The end terminal transmits an RESV response message back to the mobile station. A base station controller intercepts this message and sets up the wireless resources if possible.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: March 16, 2004
    Assignee: Nortel Networks Ltd.
    Inventors: Sanjoy Sen, Jayshree Bharatia
  • Patent number: 6675976
    Abstract: A rack assembly includes a nineteen-inch sub-assembly coupled to a four-inch extension that comprises two substantially closed side panels adjacent to each other, two substantially open sides adjacent to each other, a closed top and bottom, a plurality of mounting flanges for attaching the extension to a nineteen-inch sub-assembly and a plurality of embossments for receiving mounting hardware for installing the sub-assembly and extension into a twenty-three-inch rack. The four-inch extension is formed not only to allow a nineteen-inch rack sub-assembly to be installed in a twenty-three-inch rack, but also is formed to conduct air exhausted from a side of the nineteen-inch sub-assembly towards a rear end of the twenty-three-inch rack.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: January 13, 2004
    Assignee: White Rock Networks
    Inventors: Joseph Steinman, Greg Lowe
  • Patent number: 6625035
    Abstract: A latch assembly for removably attaching a motherboard within an enclosure and for removably attaching a co-planar daughter board to the motherboard includes a first latch that is pivotally attached to the motherboard and a first latch actuator, wherein in an engaged position, the first latch extractor engages a first extraction surface of the enclosure. The assembly further includes a second latch that is pivotally attached to the daughter board, the second latch having a second latch extractor and a second latch actuator, wherein in the engaged position, the second latch extractor engages a second extraction surface of the motherboard. The first latch and the second latch pivot in adjacent planes. The second latch, however, may be disengaged to remove the daughter board from the motherboard without disengaging the first latch.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: September 23, 2003
    Assignee: White Rock Networks
    Inventors: Joseph Steinman, Greg Lowe
  • Patent number: 6625033
    Abstract: A rack-mountable system enclosure for limiting the escape of internally generated electromagnetic interference includes a system case, a front panel, a back panel, overlapped seams formed to couple the front panel and the back panel to the system case such that no gaskets and a minimal number of fasteners including welds, screws and rivets are required, at least one front opening through which communication media passes and apertures formed within the system case for providing air inlet and egress ports.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: September 23, 2003
    Assignee: White Rock Networks
    Inventor: Joseph Steinman
  • Patent number: 6625019
    Abstract: A subassembly includes a plurality of card guides formed to receive card assemblies and also to conduct air for cooling purposes to improve cooling of components on the card guide. The card guides are particularly formed to place the cards in a location to facilitate airflow and to more evenly distribute the airflow. The invention further includes a method for designing the card guides to achieve the stated functionality. The method of designing the card guides includes determining a first and a second volume of space that is desired in relation to the amount of expected heat that is to be generated within the first and second volumes of space.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: September 23, 2003
    Assignee: White Rock Networks
    Inventors: Joseph Steinman, Greg Lowe
  • Patent number: 6625163
    Abstract: An application module, that is part of an electronic assembly including a controller module, is coupled to a backplane bus structure. The backplane comprises a differential bus(s) having a TX and RX data signal, a differential clock signal, and a single ended collision detection line. The application module comprises differential bus transceivers that are controlled by differential bus control logic on the application module. The control logic compares data bits received over a collision detection line with the data bits the application module originally transmitted. If the data is not the same, a collision has occurred and the control logic places the bus transceivers into a high impedance state. A data packet controller on the application module can only detect certain types of collisions that occur in the single ended environment. The control logic enables the data packet controller to recognize a collision that it normally would not.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: September 23, 2003
    Assignee: Nortel Networks Ltd.
    Inventors: Ronald K. Shideler, Edwin Iun
  • Patent number: 6595783
    Abstract: A circuit board assembly for use in a communication system switch includes a motherboard that comprises a planar, substantially rigid, and substantially dielectric circuit, a back plane connector affixed to the circuit board and a pair of daughter board connectors affixed to the circuit board, each of which is for coplanerly coupling with a daughter board. Each daughter board includes rigid dielectric circuit board, a plurality of integrated circuit components disposed thereon, at least one media coupler affixed to the circuit board and a motherboard connector affixed to the circuit board for coplanerly coupling with the motherboard. Finally, a pair of guides affixed to the circuit board for removably engaging a pair of daughter board slot assemblies of the motherboard to mate the daughter board with the motherboard.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: July 22, 2003
    Assignee: White Rock Network
    Inventors: Joseph Steinman, Greg Lowe