Patents Represented by Attorney John P. Dority
  • Patent number: 4313109
    Abstract: A crossed light beam position indicator includes orthogonal arrays of paired light emitters and detectors for covering a display surface with crossed light beams and scanning means coupled to the emitters and detectors for electronically scanning the orthogonal arrays such that a single emitter at any one time is emitting light. Improved initialization means detect the first occurrence of an interrupted light beam and in response to the first detection, reset the scanning means to the initial reset position to thus avoid transmitting an address that might represent only the edge of an object placed in proximity to the display screen and caught by the scan only after the scan had passed the position occupied by the main body of the object.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: January 26, 1982
    Assignee: Sperry Corporation
    Inventors: Buddy K. Funk, David M. Fowler, III
  • Patent number: 4301447
    Abstract: A crossed light beam position indicator includes orthogonal arrays of paired light emitters and detectors for covering a display surface with crossed light beams, scanning means coupled to the emitters and detectors for electronically scanning the orthogonal arrays such that a single emitter at any one time is emitting light. Improved scanning means include means for scanning the detector associated with a particular emitter and in addition scanning one or more adjacent detectors during the time that a single emitter is activated to provide plural light paths from a single emitter and thus more precisely define the position of an object placed in proximity to the display surface.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: November 17, 1981
    Assignee: Sperry Corporation
    Inventors: Buddy K. Funk, David M. Fowler, III
  • Patent number: 4285040
    Abstract: A mechanism in a computer system translates a program-generated virtual address into a real address of at least a portion, such as a byte, of a segment of the storage of the computer system. The translation mechanism is operable in either of two modes for forming the real storage address. In either mode of operation of the translation mechanism, a first portion of the virtual address is utilized to select a predetermined one of a plurality of segment descriptors, each having a first field portion and a second field portion.
    Type: Grant
    Filed: January 8, 1980
    Date of Patent: August 18, 1981
    Assignee: Sperry Corporation
    Inventors: Lewis R. Carlson, Dennis C. Gassman
  • Patent number: 4225935
    Abstract: A coding system produces a code with enhanced acquisition security by generating a plurality of linear component codes, C.sub.1, C.sub.2, . . . C.sub.n, combining the component codes in accordance with a modulo-2 addition rule to form a linear first composite code, nonlinearizing the first composite code to form a nonlinear second composite code, time delaying the component codes, C.sub.1, C.sub.2, . . . C.sub.n-1, and combining the time delayed codes with the nonlinear second composite code in accordance with a Boolean majority voting rule to form a nonlinear acquisition composite code. Acquisition of the nonlinear acquisition composite code is achieved by generating a plurality of linear reference component codes, R.sub.1, R.sub.2, . . . R.sub.n, that correlate respectively with the linear acquisition component codes, C.sub.1, C.sub.2, . . . C.sub.
    Type: Grant
    Filed: August 30, 1977
    Date of Patent: September 30, 1980
    Assignee: Sperry Corporation
    Inventors: John W. Zscheile, Jr., Billie M. Spencer
  • Patent number: 4209342
    Abstract: A system for dynamic cleaning of remnant material from a product, such as densely packaged electrical assemblies, employs a receptacle for containing cleaning fluid and a rack rotatably mounted in the receptacle for holding the product to be cleaned. The receptacle is divided by an upright transverse wall into first and second reservoirs, with the product being rotatably mounted by the rack in the first reservoir. A pair of conduits having openings facing upwardly toward a side of the product are mounted in the first reservoir adjacent to one another and extend transversely across the receptacle below the product. A blower forces a pressurized flow of a gaseous medium through a first one of the conduits and the openings therein toward the product side, while a pump forces a pressurized flow of cleaning liquid through a second one of the conduits and the openings therein toward the same product side.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: June 24, 1980
    Assignee: Sperry Corporation
    Inventor: David B. Workman
  • Patent number: 4208724
    Abstract: An automatic clock phase adjustment circuit is incorporated in a local unit of a data clocking system. The local unit also includes a clock pulse generator and a local data storage device. The system also includes a remote unit having a remote data storage device. The automatic clock phase adjustment circuit receives clock pulses from the generator and produces output clock pulses having first and second half periods interconnected by a clocking transition which when applied to the remote storage device causes clocking out of data to the local storage device. The circuit also produces a sampling pulse during each of the first and second half periods of the output clock pulses and is operable to detect in which particular one of the half periods a positive transition in the incoming data has occurred during the interval of a sampling pulse in that half period.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: June 17, 1980
    Assignee: Sperry Corporation
    Inventor: Glen D. Rattlingourd
  • Patent number: 4195270
    Abstract: A dielectric slab polarizer employs a unique configuration which provides improved impedance matching of the polarizer to the empty space of a waveguide section and, thereby, allows an approximate ninety degree differential phase shift transformation of RF field polarization to be achieved over a wider frequency bandwidth than heretofore attainable. The novel configuration of the slab polarizer is embodied by a flat middle section, conical tapered opposite end sections and reverse tapered intermediate sections which merge with the flat middle section and opposite end sections. The regions of merger between the respective intermediate sections and opposite end sections have a thickness greater than that of the middle section.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: March 25, 1980
    Assignee: Sperry Corporation
    Inventor: Lawrence L. Rainwater
  • Patent number: 4173762
    Abstract: Apparatus for generating elevation and azimuth reference signals for use in demodulating a tracking error signal to provide elevation and azimuth error components for use in adjusting the position of a tracking conical scan radar antenna, includes a template ring having a notched periphery and being attached to a rotatable nutator of the antenna such that its peripheral notches are in a predetermined angular phase relationship with a reference position on a feed horn attached on the nutator, during rotation of the feed horn with the nutator. The apparatus further includes an optical transducer and electronic circuitry coupled thereto for producing the reference signals from a signal generated by the transducer in response to rotation of the ring with the nutator. As the ring rotates with the nutator, its notched periphery makes or breaks a photon path between light beam generating and sensing elements of the transducer.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: November 6, 1979
    Assignee: Sperry Rand Corporation
    Inventors: Vernal W. Thompson, Wilbert C. Anderson
  • Patent number: 4164022
    Abstract: Electronic digital apparatus for computing an approximation of the arctangent of a given tangent number, N, being in the range of 0 to 1 and in binary form, operates in two stages to provide a solution of the expression: ##EQU1## During the first stage, steps are taken by the apparatus to find out where within the range of 0 to 1, divided preferably into four equal increments, the known tangent number N is located. When the correct increment represented by one of a plurality of increment numbers I.sub.j stored in a ROM unit of the apparatus is found, then one of a like plurality of center numbers C.sub.k of that increment also stored in the ROM unit may be readily selected, as can also be the corresponding one of a plurality of stored numbers A.sub.i representing the arctangents of the stored center numbers C.sub.k. During the first stage, the product number C.sub.k (N) is also formed. In the second stage of operation of the apparatus, the dividend and divisor numbers N-C.sub.k and 1+C.sub.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: August 7, 1979
    Assignee: Sperry Rand Corporation
    Inventors: Glen D. Rattlingourd, John W. Zscheile, Jr.
  • Patent number: 4160124
    Abstract: Multiple dial adapter to provide interfacing between a communications multiplexer module (CMM), such as a computer system, and a plurality of automatic calling units connected to telephone lines. The adapter permits control of the automatic calling units via a single computer port and time shares common logic of the computer. The adapter also provides the capability of easily programmed pauses of any desired length in dialing sequences as required when dialing through remote telephone exchanges such as tie lines.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: July 3, 1979
    Assignee: Sperry Rand Corporation
    Inventor: Wendell A. Law
  • Patent number: 4144449
    Abstract: Apparatus for detecting the position of a passive object includes a generally rectangular frame having an open interior, a source on the frame for emitting light through the frame interior from three sides thereof, a pair of linear image detectors, such as charge-coupled devices, being respectively mounted on the frame at two corners thereof being located at opposite ends of a fourth side thereof and adjacent respective opposite ends of the light source, a pair of aperture-defining devices located at the two frame corners between the detectors and the interior of the frame for configuring coincident fields of light from the frame interior for the detectors to view, and control circuitry connected to the detectors. Each of the detectors is capable of receiving its respective field of light from the frame interior and sensing interruption of light at any location within the field.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: March 13, 1979
    Assignee: Sperry Rand Corporation
    Inventors: Buddy K. Funk, Clark L. Smith
  • Patent number: 4143418
    Abstract: A data rate control device interfacing between a computer and a communication line facilitates reading out of data from the computer at a fast rate and then transmitting that data at a slow rate on the communication line with allowance being made between data transmissions for reflections and echoes on the line to die down. The control device includes a clock generator, control logic and a clock transmitter for sending out Fast Clocks and causing the serial reading in of data to a shift register of the control device. Once the presence of one character of data is detected in the register by the control logic, the Fast Clocks are terminated and Slow Clocks are sent to the register for serial reading out of the data character to a loop transmitter of the control device for transmission of the data character on the communication line.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: March 6, 1979
    Assignee: Sperry Rand Corporation
    Inventors: Gordon W. Hodge, Ted D. Nye
  • Patent number: 4135182
    Abstract: An electrical circuit for allowing the use of a TV receiver to display alpha/numeric data includes a pair of monostable multivibrators, logic circuitry and a tri-state gate for shaping and mixing digital horizontal and vertical retrace sync signals and alpha/numeric video signals to create a properly proportioned composite thereof. The circuit further includes an oscillator for generating a RF carrier signal, a field-effect transistor (FET) coupled between the oscillator and the output of the circuit which is adapted to be coupled to the antenna terminal of the TV receiver, and an emitter-follower device which feeds the composite signal to the FET for producing amplitude modulation of the RF carrier signal by the FET and transmission of the modulated signal to the TV receiver antenna terminals.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: January 16, 1979
    Assignee: Sperry Rand Corporation
    Inventors: Wayne D. Bell, Earl T. Hansen