Patents Examined by Daniel W. Juffernbruch
  • Patent number: 4876655
    Abstract: The distribution with respect to time of an event defined by the waveform of a repetitive input signal having a magnitude that lies within a predetermined range of values is observed by generating a sample signal at least once during each repetition of the input signal, generating an n-bit digital timing signal representative of the time of occurrence of a sample signal relative to the time of occurrence of the trigger signal, and sampling the repetitive input signal and generating a memory enable signal in the event that the magnitude of the input signal at the time of sampling falls within the predetermined range of values. The memory locations of a memory having 2.sup.n separately addressable memory locations are allocated respectively to the 2.sup.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: October 24, 1989
    Assignee: Tektronix, Inc.
    Inventors: Dale E. Carlton, Clifford E. Baker, Ronald M. Henricksen
  • Patent number: 4789948
    Abstract: Apparatus is disclosed for measuring a receiver measurement data set, and a digital processor adapted to determine a derived data set indicative of the communications link quality and dynamic receiver performance, utilizing powerful data reduction algorithms. The invention allows the monitoring of the quality and performance of remote communications links employing a communications receiver, determining the input signal amplitude and noise level, the carrier power to noise power density, the receiver tracking loop phase bias and 1-sigma jitter.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: December 6, 1988
    Assignee: Hughes Aircraft Company
    Inventor: U. A. von der Embse
  • Patent number: 4757462
    Abstract: A pattern pitch adjustment is applied to dot matrix pattern data as it is output from a CPU to a printer. The data is transferred from a DMA to the printer bit by bit, and the number of synchronizing signals output from the printer for each bit is counted to decide picture element timing. During a given period of time after transferring each data pattern, a waiting signal is applied to the DMA so that space picture element data is fed to the printer.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: July 12, 1988
    Assignee: Ricoh Company, Ltd.
    Inventors: Kei Sato, Noboru Murayama
  • Patent number: 4752888
    Abstract: A data processor for chromatography operates to separately recognize the peaks of a composite peak of a chromatogram. At first, in order to separate the peaks, the maximum point of the peak of the chromatogram is determined, and extrapolation lines are drawn from said maximum point to the individual points of the chromatogram, and then the gradients of the lines changing from the minimum to the maximum are determined. By determining the changes of the gradients of the extrapolation lines and intersection points of the extrapolation lines and the chromatogram, the major and minor peak are separated so that the shoulder peak can be judged remarkably accurately.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: June 21, 1988
    Assignee: Hitachi, Ltd.
    Inventor: Touhachi Yoshihara
  • Patent number: 4752891
    Abstract: A method and an apparatus are described for digitization of an image and for transmission to a host device of the digitized image via a buffer memory having a signal storage capacity that is lower than the data content of said digitized image. Different portions of the image are stored in the memory during successive separated periods of time. To this end the image is repeatedly scanned by means of radiation emitted by radiation projecting means that are transported at a constant scanning speed from a boundary outside the image beyond the image portion to be stored.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: June 21, 1988
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Jean A. Van Daele, Koen J. Van de Poel, Joseph A. Soetaert
  • Patent number: 4750142
    Abstract: A flame detector comprising a flame sensor, a storing section for storing a predetermined reference value, a comparing section for comparing a value of a signal from the flame sensor which changes in amplitude corresponding to a change in flickering of flames with said reference value and adapted to detect flames when the value of said signal exceeds the reference value, and a flame determining section which comprises a computing section for computing a ratio of an amplitude value of a minus change component to an amplitude value of a plus change component of changes in flickering of flames. The storing section stores a preset first threshold value and a preset second threshold value higher than said first threshold value, and the flame determining section signifies the presence of flames is when the ratio of the amplitude values of the signals is larger than the first threshold value and lower than the second threshold value.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: June 7, 1988
    Assignee: Hochiki Corporation
    Inventors: Kouji Akiba, Akira Kitajima, Yoshio Arai
  • Patent number: 4747062
    Abstract: The present invention provides for a process and apparatus for detecting the level of a liquid in a vessel. The method involves sensing the pressure head of the liquid level in column disposed with the vessel wherein the column liquid level has been adjusted to a first predetermined level. The level in the column is then adjusted to a second predetermined level. The pressure head of the second predetermined level in the column then sensed. The pressure of the liquid head in the vessel outside the column is sensed. The three pressure values are then used to determine the liquid level in the vessel.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: May 24, 1988
    Assignee: Amoco Corporation
    Inventor: Norman D. Esau
  • Patent number: 4745565
    Abstract: The calibration of a force sensing type data input device through the use of at least one correction developed by minimization of differences between an actual location of a pattern of test forces and a calculated location of the test forces where the calculation is on the basis of the effect of the test forces on the equilibrium of the device.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: May 17, 1988
    Assignee: International Business Machines Corporation
    Inventors: Richard L. Garwin, James L. Levine
  • Patent number: 4745563
    Abstract: The speed of a motor or a moving body driven by a motor is detected by interpolating by an estimated speed, the speed between pulse signals generated by a pulse generator. The estimated speed is obtained by updating a variable representing the torque disturbance obtained by compensating for a variable representing a motor torque by a variable representing a torque disturbance synchronously with a clock pulse of a predetermined interval, and the initial value of the estimated speed and a compensatory amount of the torque disturbance is updated each time the pulse generator generates a pulse. In the prior art, the mean speed of the present pulse signal section was regarded as the initial value in the immediately following pulse signal section, while in the present invention, the real (spontaneous) speed is obtained when the pulse generator generates a pulse signal, and this real speed is regarded as the initial value of the estimated speed of the immediately following pulse signal section.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: May 17, 1988
    Assignee: Yaskawa Electric Mfg. Co., Ltd.
    Inventors: Yasuhiko Kaku, Nobuhiro Kyura
  • Patent number: 4742471
    Abstract: A method for increasing the wirability of complementary metal oxide semiconductor (CMOS) differential cascode voltage switch (DCVS) logic circuits which comprises designing the circuitry to permit as many of the internal tree connections as possible to be wired using diffusion techniques. The method utilizes differential pair and load microblocks which have been designed so as to allow mirroring on a vertical center line. Utilizing the availability of mirroring for individual pairs plus relocation of individual pairs in the logic tree the crossings may be largely eliminated in a shortened period. It utilizes a step by step row and column analysis of the initial or starting tree design resulting from the basic Boolean logic to be performed by the particular circuit and makes required load mirroring and differential pair relocation decisions in an iterative process. The transistor pairs and load devices may be mirrored about a vertical center line.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: May 3, 1988
    Assignee: International Business Machines Corporation
    Inventors: Ellen J. Yoffa, Peter S. Hauge
  • Patent number: 4740900
    Abstract: An arrangement is described for the selection of a tariff level "n" by repeated actuation of a key T1 or T2, which can be actuated in series, whereby the desired tariff level is adjustable by forward switching or reverse switching. Each selected tariff level is displayed immediately after detecting the key actuation by an allocation sentinel (27) in a display (10), and the start of a waiting time, which can be preset, can be triggered in each tariff selection. After the expiration of the waiting time, a parameter assigned to the last selected tariff level appears in the fare display field (26) and, accordingly, signals the acceptance of the last selected tariff level including the activation of all of the rest of the parameters assignable to the selected tariff level. It is possible, thereby, to select a tariff level by skipping over undesired tariff levels without the fare display being changed during the selection process.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: April 26, 1988
    Assignee: Mannesmann Kienzle GmbH
    Inventor: Jurgen Adams
  • Patent number: 4737920
    Abstract: A method and apparatus for inspecting masks and reticles by simplifying rotational alignment thereof so as to shorten alignment time is proposed wherein a rotational angle representing a rotational error between a reference substrate and a substrate to be inspected is measured in advance, the substrate to be inspected being provided with the same circuit patterns as those of the reference substrate in one-to-one correspondence, a position of a stage having these substrates thereon is automatically measured, and a measurement error caused by the rotational error can be automatically corrected, thereby providing accurate measured values.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: April 12, 1988
    Assignee: Nippon Kogaku K. K.
    Inventor: Haruo Ozawa
  • Patent number: 4730262
    Abstract: A display method in a computer tomographic apparatus is disclosed wherein a plurality of bar graphs representing the scanning schedule are generated on a display. The bar graph depicts the scanning time extending one distance and the margin time extending a second distance at a smaller width. When the scanning is taking place, signals are generated to plot over the scanning bar graph during the scanning time and plot over the margin bar graph during the margin time. The scanning time and margin time bar graphs adjoin one another and are distinguishable by the margin time extending from the scanning bar at a narrower width. This configuration allows an operator to readily determine at a glance the scanning step and progress thereof.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: March 8, 1988
    Assignee: Yokogawa Medical Systems, Limited
    Inventors: Yoshihiko Watanabe, Yoshikazu Ogawa, Akimoto Nakase
  • Patent number: 4727498
    Abstract: Light transmitted through a thin section of reservoir rock whose pores are filled with blue-dyed epoxy is passed sequentially through red, blue and green filters and the density levels in the filtered images thereafter converted into pixels. The intensity, hue and saturation are then calculated from the red, blue and green components in each scene pixel. From the calculated values of intensity, hue and saturation, the pixels representative of pores and pores underlain by mineral are separated from the non-pore representative pixels.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: February 23, 1988
    Assignee: University of South Carolina
    Inventors: Robert Ehrlich, Sterling J. Crabtree, Jr.
  • Patent number: 4725952
    Abstract: An anti-skid braking device for use in a vehicle comprising a braking mechanism for supplying a braking force to a wheel of the vehicle, a moderator for moderating the braking force supplied from the braking mechanism to the wheel for a moderation time interval in a case where the acceleration relevant to the rotation of the wheel reaches a predetermined negative angular acceleration value during supply of the braking force to the wheel by the mechanism.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: February 16, 1988
    Assignee: Tokico Ltd.
    Inventors: Yutaka Kitano, Yoshikazu Miyamoto, Yoshimoto Ohta, Tetsuo Haraikawa
  • Patent number: 4724526
    Abstract: A cartographic apparatus for determination of the elevations of features and heights of objects from stereoscopic images of complementing input records includes a parallax bar and movable reticles for generating a floating mark over points of interest in the records. The apparatus also includes a microprocessor to compute compensation factors based on values determined during initial set up and means responsive to those factors to compensate automatically for y parallax and for errors in x parallax difference as the floating mark is moved and to compute automatically object heights and feature elevations.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: February 9, 1988
    Assignee: Bausch & Lomb Incorporated
    Inventors: Kelly P. Cole, Kurt H. Kreckel, Robert T. Shone
  • Patent number: 4723213
    Abstract: In such an operation mode that the vehicle is accelerated upon turning-on of the switch and, when the vehicle has reached a given vehicle speed, the switch is turned off to memorize the vehicle speed at that time for effecting constant-speed control at the memorized vehicle speed, a throttle valve is returned to apply the engine brake after turning-off of the switch. If at least one of several given conditions is satisfied, adjustment of opening degree of the throttle valve is started so as to maintain the current vehicle speed at the goal vehicle speed. This makes smaller overshoot of the controlled vehicle speed caused by a response deley of the vehicle. The given condition may be related to differences between current speed and set speed, elapsed time, elapsed distance, or degree of acceleration.
    Type: Grant
    Filed: September 5, 1984
    Date of Patent: February 2, 1988
    Assignee: Aisin Seiki Kabushikikaisha
    Inventors: Shoji Kawata, Hitoshi Hyodo, Tokihiko Akita
  • Patent number: 4723217
    Abstract: A character composed of basic symbols such as a Korean character is outputted by an apparatus so as to adjust to an outputted design or outputted design alteration.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: February 2, 1988
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Mitsumasa Nakano, Osamu Kawaguchi
  • Patent number: 4720804
    Abstract: A computer controlled image forming apparatus for making quantitative evaluations relating to an image of a subject which is programmed to control a plurality of associated electrically addressable indicia the images of which are viewable superimposed upon the image of the subject. The device is usable for measuring distances, areas, angles, curves, and the like, and is controllable by an operator who, by means of first signals input into the computer, selectively addresses particular members of the plurality of indicia by means of second signals output by the computer and conditioned by interface circuitry in a manner to quantitatively relate the addressed indicia to the image of the subject. Subsequently, the computer interprets the finally addressed indicia in terms of a physical parameter exhibited by the image of the subject for which the computer has been programmed and outputs results of the computations, in the form of third signals, or display to the operator.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: January 19, 1988
    Inventor: Sidney D. Moore
  • Patent number: 4720800
    Abstract: A device for measuring the volume of flowing liquid with temperature compensation includes a device for generating a volume signal, a device for detecting the temperature of the fluid to generate a temperature signal, and an electronic computer for receiving the volume and temperature signals to calculate a compensated volume. A device is provided for setting the value of the specific gravity of the liquid so that the computer, which is stored with coefficients for compensating the volume of various liquids each having the respective specific gravity at a standard temperature, the specific gravity being varied depending on the liquid temperature, selects one of the coefficients with reference to the set specific gravity value and the temperature value and calculates the compensated volume per volume signal and outputs the latter to a displaying device.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: January 19, 1988
    Assignee: Tokyo Tatsuno Co., Ltd.
    Inventors: Takashi Suzuki, Yasushi Saisu