Patents Represented by Attorney, Agent or Law Firm John B. Sowell
  • Patent number: 5717572
    Abstract: The cooling of a heat generating component mounted outside of the main portion of an enclosure that is cooled using an airstream created by an active air handler is disclosed. The invention is preferably used to cool components such as displays that generate heat, but which are mounted outside the enclosure that houses the main electronics package. The disclosed system, permits inlet air to enter via a vent, and a first duct formed by a baffle routes the inlet air along the back of the displays, removing excess heat. The air is then channeled by a second duct to an area adjacent the enclosure. Since the airstream within the enclosure has created a low pressure area, the passive air stream infiltrates the enclosure and mixes with the main airstream. The disclosed system thus cools the remotely mounted components passively, without requiring additional air handlers or diminishing the pressure and velocity within the enclosure.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: February 10, 1998
    Assignee: Unisys Corporation
    Inventors: Grant M. Smith, Peter P. Klein
  • Patent number: 5710923
    Abstract: A method for communicating active messages among nodes of a parallel processing computer system is disclosed. The active messages are defined by .mu.threads, and the method comprises the steps of: (a) generating a .mu.thread comprising an instruction pointer, frame pointer, and Local Parameters pointer from a first node to a second node; and (b) performing a procedure on a data structure in accordance with the .mu.thread. The instruction pointer points to an application specific procedure in system memory, and the frame pointer points to an application specific data structure in system memory. The Local Parameters pointer points to one or more words of additional data or parameters stored in memory mapped device registers or system memory.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: January 20, 1998
    Assignee: Unisys Corporation
    Inventors: Andrew T. Jennings, Timothy N. Fender, Duane J. McCrory, Craig R. Church
  • Patent number: 5706456
    Abstract: A desktop programmable Graphical User Interface (GUI) workstation that can be easily programmed to perform a custom applications, without the need of text editor. In other words, programming the desktop programmable GUI workstation does not require the program user to utilize a text editor, create or edit code, or understand any particular programming language. The programmer user can program the workstation in an icon environment from predefined functions stored in libraries. Once programmed the workstation employs a GUI which provides an end user with an easy to use and easy to understand interface to their application specific process. The user interface is structured to organize work tasks by major activities of the application specific process. The workstation allows the user to integrate generic window technology such as word processing into their application specific process.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: January 6, 1998
    Assignee: Unisys Corporation
    Inventors: Jerry L. Dupper, Peter K. Nagy
  • Patent number: 5704052
    Abstract: A microprocessor architecture that includes an arithmetic logic unit (ALU), a bit processing unit (BPU), a register file and an instruction register is disclosed. The BPU performs complex logical operations in a single clock cycle. The ALU continues to perform the slow arithmetic operations (e.g., multiply, divide). The BPU has two special purpose registers, a zero flag and a match flag, which are used for program execution control. The BPU performs bit manipulations on data stored in and received from the register file and/or individual fields in the instruction currently being executed by the BPU.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: December 30, 1997
    Assignee: Unisys Corporation
    Inventors: Gary C. Wu, Chandra S. Pawar, Steven H. Leibowitz, Edward J. Pullin, Michael J. Hazzard, Joseph C. Duggan
  • Patent number: 5699953
    Abstract: A multi-resonance frequency ultrasonic transducer has a plurality of useful resonance frequencies for wire bonding operation and comprises an integral unibody with a rectangular aperture in the center of its mass. A multi-frequency stack of transducer drivers is mounted in the rectangular aperture with compression wedges. The length L of the stack of transducer drivers is equal to or less than one-quarter of one wavelength of the lower useful resonance frequency and the design envelopes for the useful frequencies embrace two or more useful fixed frequencies separated from spurious unusable frequencies by a minimum of two kilohertz.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: December 23, 1997
    Assignee: Kulicke and Soffa Investments, Inc.
    Inventor: Ali Reza Safabakhsh
  • Patent number: 5699505
    Abstract: A method is provided for collecting information located within a plurality of hardware elements of a computer system. The hardware elements of the plurality of hardware elements are simultaneously instructed to collect the information. The information within the instructed hardware elements is simultaneously collected. A maintenance system is provided for monitoring the computer system and determining a computer system error in accordance with the monitoring. The step of simultaneously instructing the hardware elements to collect the information is performed in accordance with a computer error determined in this manner. The hardware elements, which may be hardware processors, are provided with individual hardware modules which receive the simultaneous instructions to collect data and direct the simultaneous collection of information within the hardware elements. A transmission link is coupled to each hardware element in the computer system for transmitting the collected information.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: December 16, 1997
    Assignee: Unisys Corporation
    Inventor: Usha Srinivasan
  • Patent number: 5696789
    Abstract: A novel code division multiple access (CDMA) system and apparatus is provided which permits a plurality of encoded modulated data messages to be transmitted simultaneously on the same channel in one frequency band as a composite CDMA signal. An identification signal is generated and spread by a spreading signal having a duty cycle less than fifty percent to produce a combined signal which is transmitted to a receiver having a tapped delay with a plurality of taps each of which produce a replica of the received combined signal delayed by an odd multiple of the duty cycle of the spreading signal. Each of the replica signals is multiplied by a predetermined weighted value to produce weighted delayed signals and a controller responsive to the received combined signal, is employed for controlling individual weighted delayed signals which are then combined to suppress the spreading signal leaving the identification signal.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: December 9, 1997
    Assignee: Unisys Corporation
    Inventors: Robert V. Jones, Richard J. Saggio, John W. Zscheile, Jr.
  • Patent number: 5696795
    Abstract: An improved quadrature phase shift key modulator circuit of the type which includes a non-linear amplifier in the transmitter and includes a frequency select logic circuit for receiving the in phase and quadrature phase digital data to be modulated onto a carrier frequency signal. The output of the frequency select circuit produces select signals that are coupled to the input of a digital carrier frequency generator. The digital carrier frequency generator synthesizes and increases, decreases, or leaves unchanged the carrier frequency as a representation of the data occurring on the in phase and quadrature phase input lines. The output of the digital carrier frequency generator is smoothed and converted to an analog signal which has a constant vector power magnitude during phase change.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: December 9, 1997
    Assignee: Unisys Corporation
    Inventors: Bruce Howard Williams, Roy Edgar Greeff, Glenn Arthur Arbanas
  • Patent number: 5696936
    Abstract: A low latency software and hardware interface between a microprocessor and Network Interface Unit is disclosed. The Network Interface Unit interfaces to the microprocessor's Level 2 cache interface, which provides burst transfers of cache lines between the microprocessor and Network Interface Unit. The Network Interface Unit is memory mapped into the microprocessor's address space. Two memory mapped cache lines are used to write commands to the Network Interface Unit's Write Window and another two cache lines are used to read results of the commands from the Network Interface Unit's Read Window. The Write Window is a three port register file. Data is written into one write port and read simultaneously from two read ports. One read port is used during read operations to the Write Window while the other is used during command execution to move data to the Internal Structures block. The Read Window is a 2-1 multiplexor that is 128 bits wide.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: December 9, 1997
    Assignee: Unisys Corporation
    Inventors: Craig R. Church, Duane J. McCrory, Joseph S. Schibinger, Laurence P. Flora
  • Patent number: 5688568
    Abstract: A novel fireplace element is made by a novel process wherein the fireplace element is first molded from a mixture of refractory and ceramic fibers and removed from the mold in a green state. While the fireplace element can be treated in the green state, it is preferred that the fireplace element is cured to provide a rigid fireplace element of the type used in artificial fireplace log sets. The element if not already processed is provided with a surface of loosened fibers so that the loose fibers will reach an incandescent glow set state and give the appearance of the total element being incandescent well before the surface and/or body of the fireplace element can reach an incandescent temperature.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: November 18, 1997
    Assignee: Heat-N-Glo Fireplace Products, Inc.
    Inventors: James Frederick Wolf, Ronald John Shimek, Daniel Curtis Shimek
  • Patent number: 5680400
    Abstract: A high speed data transfer mechanism for transferring files from a transmission host across a data link to a receiver host. First, data is presented to a data splitter. The data splitter separates the input data stream into N separate substreams by packaging data into packets, which may be of different sizes. As data is packetized, each packet is sent and presented to a separate data transmitter. Data is sent to the array of transmitter in round-robin fashion such that the data is first presented to the first transmitter, then to the second transmitter, and so on until each transmitter has been sent a packet, then the first transmitter is sent another, and so on, until all data packets have been sent to a transmitter. A receiving side of the mechanism then initializes as many receivers as needed, or as many data receive substreams as are required using as many receivers as are available, ideally an equal number to the transmitters.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: October 21, 1997
    Assignee: Unisys Corporation
    Inventor: Kenneth L. York
  • Patent number: 5651846
    Abstract: An apparatus and method are provided for delaminating the top printed layer from a three layer paper label adhesively bonded to a semi-rigid plastic or metal container. An underlying pulp layer of the three layer paper is selectively removed leaving only a smooth adhesive layer of the paper label and thereby providing a smooth unprinted surface for relabeling. An apparatus and method are also provided for simultaneously delaminating both the top printed layer and the bottom adhesive layer of a two layer label bonded to a semi-rigid container.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: July 29, 1997
    Inventor: Richard Francis Hurst
  • Patent number: 5652524
    Abstract: An improved load board design having a generic test circuit integrated into the load board capable of functioning with varying devices under test and requires little to no wiring. The test circuit is located in a fixed and optimal position of the load board with relation to the DUT. In a preferred embodiment, the test circuit is a quiescent test circuit for interfacing an integrated circuit tester to the DUT. The quiescent test circuit is capable of supplying high powered voltage to a DUT while the DUT's desired internal state is reached. At this point, the integrated circuit tester, sends an active select signal to the quiescent test circuit instantaneously deselecting the high-powered voltage supply to the DUT and selecting the integrated circuit tester's parametric measurement unit for powering the DUT. The integrated circuit tester, through a parametric measurement unit is capable of measuring the quiescent current of the DUT, while powering the DUT.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: July 29, 1997
    Assignee: Unisys Corporation
    Inventors: Mark W. Jennion, Joseph H. Fell, III, Paul H. Selby, III, Joseph J. Scorsone
  • Patent number: 5647340
    Abstract: A novel dual direct vented fireplace includes a combustion chamber having two permanent exhaust outlets including a horizontal exhaust outlet and a vertical exhaust outlet. A fireplace enclosure surrounds at least the top, bottom and back of said combustion chamber forming three hollow plenum walls around the combustion chamber. A fresh air duct in the top and back plenum walls connects to a combustion air passageway under the gas burner system. Two permanent air inlets in said fresh air duct include a horizontal air inlet and a vertical air inlet. A coaxial pipe is provided for connection to at least one of said exhaust outlets and one of said air inlets. The other of said exhaust outlets and air inlets is covered with a closure whereby the dual direct-vented fireplace is assembled at the factory or in the field as either a horizontal or a vertical direct vented fireplace.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: July 15, 1997
    Assignee: Heat-n-Glow
    Inventors: Ronald John Shimek, Daniel Curtis Shimek
  • Patent number: 5645210
    Abstract: There is provided an ultrasonic generator of the type having a power amplifier. The output of the power amplifier is connected across and through an ultrasonic transducer which holds a bonding tool to be engaged on a bonding target. A current sufficient to induce a resonant frequency is applied across the ultrasonic transducer in air and before touch down on the bonding target while continuously monitoring the current and voltage across the transducer. A touch down detector circuit is coupled to the current and voltage being monitored and initiates a touch down signal which is employed to control these Z-axis drive motor of an automatic wire bonder within several microseconds of the actual touch down time.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: July 8, 1997
    Assignee: Kulicke and Soffa Investments, Inc.
    Inventors: Eugene Michael Toner, Avner Guez
  • Patent number: 5644477
    Abstract: Modular fascia cover assemblies for rack mounted equipment are disclosed. In a system comprised of several pieces of equipment mounted in a standardized rack, vertical spaces typically exist between the components. These spaces can be filled with fascia cover assemblies, and the present invention provides a modular system that permits openings of nearly any width to be filled. The fascia cover assembly is created by choosing a combination from a few standardized modular parts. The fascia cover assemblies disclosed preferably include components such as an operator panel and pull bar that can be included, respectively, at the top and bottom of the assembly. Most preferably, the operator panel is one and one-half units high and the pull bar is one-half unit high. A cover panel that is one unit high is also included. In certain embodiments, a larger cover panel component is also provided that is three units high.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: July 1, 1997
    Assignee: Unisys Corporation
    Inventor: Peter P. Klein
  • Patent number: 5633916
    Abstract: An integrated voice and data messaging system is disclosed. The system includes a Server comprising a first computer, a network applications platform (NAP) running on the first computer, and means for storing voice and data messages. In addition, the system includes a Client comprising a second computer with an associated display and means for transmitting analog voice messages and digital data messages to the Server, a Client/Server interface coupling the Client to the Server and providing a medium over which the Client and Server communicate; and a Universal Mailbox Application running on the Server, the Client, or both the Server and Client. The system is capable of visually indicating to a user, via the display device associated with the Client computer, that a message has been delivered for the user and is being held by the Server, wherein the message may be a voice, data or facsimile message.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: May 27, 1997
    Assignee: Unisys Corporation
    Inventors: Bruce Goldhagen, Frederick C. Kruesi, Gary P. Russell, John Homan, Edwin M. Elrod
  • Patent number: 5627840
    Abstract: A method and system for optimizing shift operations by reducing the computational overhead and the number of full scan path shifts associated with accessing and modifying data on a rotating scan path image are disclosed. The system further simplifies the construction of a scan path image by inserting a programmable number of leading and trailing bits around a selected string of data bits. The system manipulates and constructs a scan path image without having to shift or prepare the entire scan path image in memory. Specifically, the system comprises a master controller having a lead bypass module, a trail bypass module, a first shift module, a second shift module, a select module and a shift control module. Collectively, these modules comprise the necessary hardware for executing a plurality of shift optimization functions which include lead and trail bypass insertion, non-destructive read, field isolation, field insertion, bit order reversion, bit rotation and simultaneous read and write operation.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: May 6, 1997
    Assignee: Unisys Corp.
    Inventors: Eric K. Hundertmark, Duane J. McCrory, Todd M. Rimmer
  • Patent number: 5613133
    Abstract: Microcode is loaded into, for example, a processor or I/O module within a computer system without manually halting and restarting the computer system. In other words, microcode can be loaded into the computer system dynamically while data processing continues from the processor or I/O module states just prior to the microcode load with no major interruption to the user. A microcode image is loaded into a processor which is already executing one or more tasks. A request to load microcode into the processor is received. The processor is signalled to suspend task execution. After the microcode image is transferred into the processor, the processor is signalled to resume task execution.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: March 18, 1997
    Assignee: Unisys Corporation
    Inventors: Michael Bell, William Burroughs, Susanne Gilliam, William Holman
  • Patent number: 5601073
    Abstract: A flat pan gas burner for a gas log fireplace system comprises a U-shaped pan formed in a sheet of metal. The U-shaped pan is provided with attachment flanges and a gas pipe attachment aperture through which is attached a gas pipe adapter. A burner plate is further provided with a plurality of gas flame apertures in a predetermined pattern for creating a desired flame pattern below the gas log system. If desired, there is further provided a layer of porous ceramic material on the burner plate which is impregnated with metallic salts and which produces a desired lengthening and coloring of the gas flames of the gas burner. A rocking or sliding support of the flat pan gas burner imparts movements and/or different length to the colored flames.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: February 11, 1997
    Inventor: Ronald J. Shimek