Patents Examined by Felix D. Gruber
  • Patent number: 5046016
    Abstract: A computer aided design (CAD) method for designing circular overmoded waveguide systems having optimal operating characteristics. The CAD method receives selected input waveguide operational, material and structural parameters and computes the resulting waveguide operational characteristics, including power losses for a given waveguide system configuration, including both straight and bent sections. Optimal designs for lined dielectric and sheathed-helix types of circular waveguide and waveguide bends have resulted for both S- and X-band operation.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: September 3, 1991
    Assignee: The Johns Hopkins University
    Inventors: Jerry A. Krill, Melrose M. Jesurun, William H. Zinger
  • Patent number: 5043901
    Abstract: An air-fuel ratio controller, including: fuel injection apparatus to supply an engine with fuel, a quantity of fuel to be delivered by the fuel injection apparatus being controlled by an impressed fuel quantity injection pulse having an injection time width corresponding to a desired fuel quantity; engine status detecting apparatus for detecting a status of at least one of a rotation frequency, intake manifold pressure, and volumetric efficiency operating parameter with respect to an operation of the engine; basic fuel quantity calculating apparatus for calculating a basic fuel quantity according to the status detected by the engine status detecting apparatus; air-fuel ratio sensor apparatus for detecting an air-fuel ratio in an exhaust gas from the engine; proportional integral processing apparatus for integrally processing and calculating an actual fuel quantity according to the output from the air-fuel ratio sensor apparatus; learning apparatus for calculating, using an output from the integral processing
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: August 27, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masaaki Miyazaki, Shinji Kojima, Hajime Kako
  • Patent number: 5043892
    Abstract: A microprocessor-based electronic control system for a powershift transmission having at least one proportional actuator, such as a solenoid-operated proportional valve, is disclosed. The controller operates a plurality of on-off solenoid valves and solenoid-operated proportional valve to provide operator-selected gear shifts in both forward and reverse directions having controlled clutch engagements achieved by modulation of clutch engagement pressure by the proportional valve. The key parameters associated with the gradual clutch engagement are all easily varied by the controller, most under program control during operation, to provide for optimized clutch engagements for smooth gearshifts. The key parameters include: fast-fill clutch delay, initial clutch engagement pressure, rate of increase of clutch engagement pressure, and the length of the reduced pressure clutch engagement interval.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: August 27, 1991
    Assignee: J. I. Case Company
    Inventors: Kevin L. Brekkestran, John C. Thomas
  • Patent number: 5040117
    Abstract: A device for sensing the emissions from an idling engine and automatically adjusting the engine so as to minimize pollutants in the exhaust. The device measures the composition of gas emitted and the engine speed at idle and compares the measured values to predetermined values. When differences occur between the measured and predetermined values, an actuator is signaled which adjusts the position of an air-regulating screw and an idling screw in the carburetor until the measured values are acceptable.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: August 13, 1991
    Assignee: Industrial Technology Research Institute
    Inventors: Jia-Ming Shyu, Min-Lee Chen, James H. Wang
  • Patent number: 5040114
    Abstract: A time-dependent engine output power characteristic curve for an engine output power to vary therealong to a target value which corresponds to an indication of intention of the driver for acceleration or deceleration (e.g., the amount of depression of the accelerator pedal) is established based on the difference between a target engine output power and an actual engine output power. Then, a target rate of change of the rotational speed of the engine and a target rate of change of an indication of an engine load are established so that the actual engine output power varies along the engine output power characteristic curve, and the throttle valve and the continuously variable transmission are controlled using the target rates thus established.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: August 13, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshikazu Ishikawa, Kouji Yamaguchi
  • Patent number: 5038289
    Abstract: A diagnosis system for diagnosing an electronic control system mounted on a vehicle has a signal transmitter for transmitting a data demand signal and a signal demanding termination of transmission of the data. The electronic control system has a signal receiver for receiving the data demand signal and the transmission terminating demand signal from the diagnosis device, and an interpreter for interpreting the content of the received signals and a signal transmitter for transmitting an output signal to the diagnosis device in accordance with the interpretation.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: August 6, 1991
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Kunihiro Abe
  • Patent number: 5036470
    Abstract: In an internal combustion engine having an air-fuel ration sensor, a lean-side extreme value of the output of the air-fuel ration sensor is calculated when the air-fuel ratio is lean, and a rich-side extreme value of the output of the air-fuel ratio sensor is calculated when the air-fuel ration is rich, and when both of these extreme values are on the rich side or when the mean value thereof is on the rich side, the air-fuel ratio sensor is determined to be in a high temperature state.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: July 30, 1991
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Suzuki, Hiroshi Tanaka
  • Patent number: 5036465
    Abstract: An armament station and a method for controlling and monitoring a store connected to an armament station. The method comprises the steps of loading into the armament station a generic program portion operable with a multitude of types of stores, invoking that generic program portion to determine the specific type of store connected to the armament station, and loading into the armament station a specific program portion operable with the specific type of store connected to the station. The specific program portion is then invoked to control and monitor the store connected to the station; and in particular, to actuate a power supply to supply power to the store, to transmit messages and signals to the store to operate the store, and to receive messages and signals from the store to monitor the operation thereof.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: July 30, 1991
    Assignee: Grumman Aerospace Corporation
    Inventors: William H. Ackerman, Jr., John P. Sainola
  • Patent number: 5036466
    Abstract: An armament system for use with a plurality of different types of stores, and comprising a central unit and a plurality of distributed stations. The central unit holds a plurality of store specific application programs, and each of the plurality of store types is associated with one of the store specific application programs. Moreover, each of the store specific application programs is adapted to control the transmission of data between a store of an associated type and one of the distributed stations. The central unit is adapted to control the operation of the armament system and the transmission of data between the central unit and the distributed stations, and to transmit any of the store specific application programs to any of the distributed stations of the armament system.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: July 30, 1991
    Assignee: Grumman Aerospace Corporation
    Inventors: Frank Fitzgerald, William H. Ackerman, Jr.
  • Patent number: 5034894
    Abstract: Various detectors are provided for detecting engine operating conditions and for continuously producing an operating condition signal during operation of an engine. A self-diagnosis device is responsive to the operating condition signal for detecting an abnormality in the signal and for producing a data signal. A nonvolatile memory is provided for storing the data signal. The data signal is indicated on a display on an outside computer.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: July 23, 1991
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Kunihiro Abe
  • Patent number: 5032993
    Abstract: An automatic transmission is controlled by detecting engine rmp following a transmission downshift and comparing the detected engine speed with a predetermined speed value. If the detected speed does not exceed the predetermined value, the solenoids controlling the down-shift are maintained energized. If the detected speed exceeds the predetermined speed value, the solenoids are de-energized to prevent overrunning of the engine.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: July 16, 1991
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Hiromi Hasegawa, Toshiaki Ishiguro
  • Patent number: 5032991
    Abstract: The present disclosure is directed to a technique for assigning each of a plurality of test points (34) on a first surface of a translator board (24) to an appropriate one of a set of grid points (36) on an opposed surface of the board. Such an assignment is accomplished by first mapping the grid points (36) and a successive one of the test points (34) into an array (49a) of uniformly spaced cells (49b). An initial group of cells (49b), surrounding the mapped test point (34), is then searched to locate the four grid points (36) closest to the test point. Among the four closest grid points (36), the one which satisfies a particular constraint is designated. A check is then made to determine whether the designated grid point (36) is appropriate for the test point (34). If so, the grid point (36) is assigned to the test point (34) and the grid point is removed from the array before mapping the next test point.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: July 16, 1991
    Assignee: AT&T Ball Laboratories
    Inventors: Scott Davidson, Charles D. Hechtman, James L. Lewandowski, Daryl C. Lu
  • Patent number: 5031108
    Abstract: A molten injection-molding method is applicable to any system of dividing a molded product form model into micro-elements and analyzing a molten material flow behavior within the mold by the use of numerical analytic techniques that include the finite element method, boundary element method, difference method, and FAN method, among others. First, the entire length of time required for the process of filling the mold with a molten material is divided into an arbitrary number of intervals, representing the filling progress in each individual time interval in an equitime curve diagram.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: July 9, 1991
    Assignee: Toshiba Machine Co., Ltd.
    Inventors: Shigeru Fujita, Susumu Harada
  • Patent number: 5031100
    Abstract: A shift control system for an automatic transmission of a vehicle includes a vehicle speed sensor, a throttle opening sensor, and a controller which determines a desired speed ratio in accordance with the vehicle speed and throttle opening by using a shift pattern, and controls the automatic transmission to achieve the desired speed ratio. There are further provided an input device which permits the driver to appraise the shifting performance, and to produce a complaint signal against each unsatisfying shift, and a modifying means for altering the shift pattern in accordance with the driver's complaint.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: July 9, 1991
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hiroshi Takahashi
  • Patent number: 5031127
    Abstract: A molten injection-molding method is applicable to any system of dividing a molded product form model into micro-elements and analyzing a molten material flow behavior within the mold by the use of numerical analytic techniques that include the finite element method, boundary element method, difference method, and FAN method, among others. First, the entire length of time required for the process of filling the mold with a molten material is divided into an arbitrary number of intervals, representing the filling progress in each individual time interval in an equitime curve diagram.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: July 9, 1991
    Assignee: Toshiba Machine Co., Ltd.
    Inventors: Shigeru Fujita, Susumu Harada
  • Patent number: 5029087
    Abstract: A control for a hydrokinetic torque converter lockup clutch having a clutch plate that cooperates with a torque converter impeller shell to define a control pressure cavity wherein the clutch plate is subjected to the pressure in the torus circuit of the torque converter and wherein an electronically controlled valve system is used to modulate the pressure in the control pressure cavity thereby varying the clutch capacity to establish a controlled degree of slip of the clutch so that the actual slip of the clutch may be maintained at a target slip value which is adjusted depending upon the value of input shaft speed data and throttle position data stored in the memory of a microprocessor, the microprocessor being designed to calibrate a desired slip value for each engine torque and turbine speed condition whereby a closed-loop electronic control may be achieved to provide a partial converter bypass during the major portion of the vehicle operating time.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: July 2, 1991
    Assignee: Ford Motor Company
    Inventors: Ronald T. Cowan, Roger L. Huffmaster, Pramod K. Jain
  • Patent number: 5027278
    Abstract: In order to control all revolution numbers of an engine at high precision, combustion of each cylinder is reliably controlled. For the combustion control of each cylinder, there are controlled measurement timings of an air volume as well as a fuel volume contributive to the combustion and exhaust gas being a combustion result, calculation timings of a fuel injection volume and an ignition timing, and output timings of fuel injection and/or ignition. These timings are synchronized by crank angle positions from a reference point such as top dead center. Particularly as to the measurement timing, a delay time of a gas stream between a measurement spot and the cylinder is compensated in terms of a crank angle corresponding thereto, whereby the variables to be measured are synchronized.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: June 25, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Mikihiko Ohnari, Teruji Sekozawa, Motohisa Funabashi, Takeshi Atago, Makoto Shioya
  • Patent number: 5023822
    Abstract: A programmable system for providing a programmable ratio of output pulses to input pulses. The programmable system receives pulses from an electric power meter and outputs a programmable number of pulses representing a number of kilowatt hours consumed. Various electric power meter disk patterns can be processed by the programmable system. The programmable ratio can be applied via input pins and/or via an external memory.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: June 11, 1991
    Inventors: John C. Schlotterer, Paul M. Johnston, Mark F. Rusnak, Lawrence T. Pillage, Thomas M. Byrd, Jr.
  • Patent number: 5023795
    Abstract: A fuel injection control system assumes fuel amount introduced in an engine combustion chamber on the basis of an air/fuel ratio dependent value derived by monitoring an air/fuel ratio dependent component in an exhaust gas, and an intake air amount introduced into the combustion chamber, assumes wetting fuel amount to be consumed for wetting an induction system on the basis of the fuel amount introduced into the combustion chamber and a fuel injection amount injected up to the immediately preceding fuel injection cycle, and prospect fuel amount to be introduced into the combustion chamber on the basis of the current fuel injection amount and the wetting fuel amount. The prospected fuel amount to be introduced into the combustion chamber is compared with a target fuel amount which is derived according to the engine driving condition for modifying the fuel injection amount so that the prospected fuel amount coincides with the target fuel amount.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: June 11, 1991
    Assignee: Nissan Motor Company, Limited
    Inventors: Toshio Matsumura, Yasutoshi Nanyoshi
  • Patent number: 5023818
    Abstract: A scanning device having a laser, a motor for driving a mirror arrangement for moving the beam of the laser, and a microprocessor for control purposes is provided with a system for measuring and correcting fault conditions to meet laser safety requirements. Detection devices are provided for determining whether the laser is on or off, and whether the motor is running at or above a predetermined speed. If the laser is stuck in an on condition, then the motor is left running and an error is signalled. If the motor will not operate at or above the minimum speed, the laser is maintained in an off condition and an error is signalled.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: June 11, 1991
    Assignee: NCR Corporation
    Inventors: Christopher J. Wittensoldner, John K. Burkey, Denis M. Blanford