Patents Represented by Attorney, Agent or Law Firm Thomas E. Schatzel
  • Patent number: 6747687
    Abstract: In a vehicle time-of-entry and time-of-exit system, the passing of a vehicle through an entrance generates a “trigger-t0” signal. An entrance video camera provides realtime images of entering vehicles. The trigger-t0 signal causes one video frame of the image of vehicle to be stored or “frame-grabbed” in an entrance subsystem. A time-of-entry clock-time signal is used to time-stamp the image which is then forwarded on a connection to a matcher. The passing of a vehicle through an exit generates a “trigger-t1” signal. An exit video camera 116 provides realtime images of exiting vehicles. The trigger-t1 signal causes one video frame of the image of vehicle to be stored or “frame-grabbed” in an exit subsystem. A clock-time signal is used to time-stamp the image which is then forwarded on a connection to the matcher. A output automatically provides a length-of-stay for each exiting vehicle according to its time-of-entry.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: June 8, 2004
    Assignee: Pulnix America, Inc.
    Inventor: James Francis Alves
  • Patent number: 6727859
    Abstract: A radiated electric-field meter comprises high frequency and low frequency antennas connected to a pre-amplifier with manually adjustable gain. This feeds a linear-logarithmic amplifier/detector with a mode switch for logarithmic/linear operations. A standard panel meter provides an analog reading. Red and green LED panel lights are set close together and fed opposite signals proportional to the detected field strength. As the measurements change from zero to full-scale, the relative intensities of the green and red LED's change, providing a hue change proportional to field strength. A silent vibrator can also be switched in to provide a vibrator indication of field strength and changes of field strength.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: April 27, 2004
    Inventor: Alan L. Susal
  • Patent number: 6704196
    Abstract: A chassis-rack system mounts two 19″ RETMA rack chassis back-to-back in the same vertical 1U-space. Each has an independent cooling system that draws-in cold air from respective front and rear panels. Such panels are provided with a series of slots that are blocked-off in different patterns according to empirical cooling tests, done with particular complements of internal constituent components. Such intakes are typically at a left side of the panel, and air drawn in is forced to flow to the back and around to the right by two floor-to-ceiling partition walls. Such walls can define bay for a CD-ROM, floppy disk, or PCI-bus. The drawn-in air is critically sequenced first over processors, memory, then hard disk drives, and finally over a power supply. The power supply is near the front on the right, typically, and-two 33-CFM fans exhaust the heated air out the respective panels.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: March 9, 2004
    Assignee: Allied Systems Design, Inc.
    Inventors: Louis John Rodriguez, Bryan Joseph Rodriguez
  • Patent number: 6670913
    Abstract: A combined satellite positioning and electro-optical total station system includes a reference oscillator that provides local oscillator signals for a satellite navigation receiver and a precision frequency source for use by an electronic distance meter. When the satellite navigation receiver is locked onto and tracking orbiting navigation satellites, the highly precise cesium-rubidium clocks in the navigation satellite system can be used as standards to control the reference oscillator in the combined satellite positioning and electro-optical total station system. Baseline measurements made by the electronic distance meter are therefore not subject to mis-calibrations and drift as long as the satellite navigation receiver is locked onto and tracking the orbiting navigation satellites.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: December 30, 2003
    Assignee: Trimble Navigation Limited
    Inventors: Nicholas C. Talbot, Michael V. McCusker
  • Patent number: 6650765
    Abstract: A vehicle video imaging system comprises a white-light LED array for illuminating retro-reflective painted parts of a vehicle's license plate, a powerful flash with a visual spectrum cutout filter and a polarizing filter for illuminating any non-retro-reflective license plate paint and the vehicle itself. A video camera with a polarizing filter turned 90° relative to the one in front of the flash receives the illuminated image of the vehicle and its license plate. The retro-reflective paint of a license plate will return polarized light as it is received, so the white-light LED array will provide all the illumination needed by the camera to get a good high-contrast picture of the license plate. The polarizing filters will combine to block out most of the light from the flash that was returned still-polarized by the retro-reflective-paint license plate.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: November 18, 2003
    Assignee: Pulnix America, Inc.
    Inventor: James Francis Alves
  • Patent number: 6638787
    Abstract: A fast frame-rate imaging device is produced by a attaching a fiberoptic block to an otherwise ordinary and inexpensive CCD. A part of the fiberoptic block is occluded so as to darken a majority of the active imaging photocells. The CCD imaging device is operated at near its maximum horizontal and vertical clock rates, but multiple image frames are defined within the one previous active photocell array field. The added dark areas in the optical field protect the recent frames still in transit within the active array area from being double exposed and thus corrupted. The serial output of the thus-modified CCD imaging device is reinterpreted to include more frames than originally at a multiple equal to the original array dimension divided by the new array dimension (m·n/m′·n′). Such a modified CCD array uses only one-fourth of the original active area, and is operable at a multiple of the original frame rate.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: October 28, 2003
    Assignees: Pulnix America, Inc., Stanford Photonics, Inc.
    Inventors: Michael Paul Buchin, Toshikazu Hori
  • Patent number: 6614395
    Abstract: A combined satellite positioning and electro-optical total station system includes a reference oscillator that provides local oscillator signals for a satellite navigation receiver and a precision frequency source for use by an electronic distance meter. When the satellite navigation receiver is locked onto and tracking orbiting navigation satellites, the highly precise cesium-rubidium clocks in the navigation satellite system can be used as standards to control the reference oscillator in the combined satellite positioning and electro-optical total station system. Baseline measurements made by the electronic distance meter are therefore not subject to mis-calibrations and drift as long as the satellite navigation receiver is locked onto and tracking the orbiting navigation satellites.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: September 2, 2003
    Assignee: Trimble Navigation Limited
    Inventors: Nicholas C. Talbot, Michael V. McCusker
  • Patent number: 6606614
    Abstract: A neural network integrated circuit comprises many neuron circuits each with a distance resister that is compared in a competition for the closest-hit with all the other neurons. Such closest-hit comparison is conducted bit-by-bit over the many bit positions of a distance measure in binary format each time after the neurons fire. A single-wire AND-bus interconnects every neuron in a whole system. Each neuron drives the single-wire AND-bus with an open-collector buffer. All neurons press the single-wire AND-bus with their respective distance measures in successive cycles, starting with the most significant bit. For example, a fourteen-bit binary distance word requires fourteen comparison cycles. Any neuron that sees a “0” on the single-wire AND-bus when its own corresponding bit in its distance measure is a “1”, automatically drops from the competition. By the time the least significant bit cycle is run, a single closest distance will have been determined.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: August 12, 2003
    Assignee: Silicon Recognition, Inc.
    Inventors: Guy Paillet, Donald F. Specht
  • Patent number: 6602104
    Abstract: An arc lamp comprises nine component parts that are brought together in three brazes and one TIG-weld to result in a finished product. An anode assembly is brazed with the rest of a body sub-assembly in one step instead of two. A single-bar cathode-support strut is brazed together as one step. A window flange and a sapphire output window are brazed together with the product of the strut braze step in a mounted-cathode-braze step. A copper-tube fill tubulation, a kovar sleeve, a ceramic reflector body, an anode flange, and a tungsten anode are all brazed together in a “body-braze” step. The products of the mounted-cathode-braze step and body-braze step are tungsten-inert-gas (TIG) welded together in a final welding step. A lamp is finished by filling it with xenon gas and pinching off the tubulation.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: August 5, 2003
    Assignee: EG&G ILC Technology
    Inventor: Roy D. Roberts
  • Patent number: 6597087
    Abstract: An arc lamp comprises a single edge-to-edge cathode support strut on which the cathode is mounted with an end slot. Such makes heat and thermal stress loading on the assembly symmetrical over operational time, and arc tip wander from the anode center is practically eliminated. Nine component parts that are brought together in only three brazes and one TIG-weld to result in a finished product. An anode assembly is brazed with the rest of a body sub-assembly in one step instead of two. A single-bar cathode-support strut is brazed together as one step. A window flange and a sapphire output window are brazed together with the product of the strut braze step in a mounted-cathode-braze step. A copper-tube fill tubulation, a kovar sleeve, a ceramic reflector body, an anode flange, and a tungsten anode are all brazed together in a “body-braze” step. The products of the mounted-cathode-braze step and body-braze step are tungsten-inert-gas (TIG) welded together in a final welding step.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: July 22, 2003
    Assignee: PerkinElmer Optoelectronics, N.C., Inc.
    Inventors: Roy D. Roberts, William L. Manning
  • Patent number: 6578970
    Abstract: A high-intensity arc lamp comprises a glass envelope with a pressurized gas atmosphere. A cathode and an anode structure are disposed within. A pointed tip of the cathode is juxtaposed by a central hole in a face of the anode and a small gap between them. Such central hole is vented away from the arc down inside the anode structure. During operation, heat from the arc at the entrance to the central hole drives a wind of xenon gas down through such vents in the anode structure.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: June 17, 2003
    Assignee: Advanced Radiation Corporation
    Inventor: Raymond E. Paquette
  • Patent number: 6483240
    Abstract: A high pressure mercury lamp comprises a quartz envelope that contains an atmosphere and a pair of arc-discharge electrodes. These are coil-wound tungsten that has been doped to grain-stabilize the tungsten crystalline structure, e.g., with potassium or potassium and alumina. Preferred potassium doping levels of the tungsten material are in the range of 35-75 ppm. A suitable commercial product of alumina and potassium doped tungsten material is Type BSD-Sylvania. The atmosphere generally comprises a rare gas like xenon, to which is added no more than 0.2 mg/mm3 of mercury so as to keep operating pressure under 200 bar (197 atm). But the electrical power applied is sufficient to maintain arc power loadings of at least 150 watts/mm. The resultant wall loading is more than 0.8 watts/mm2, and lamp operating-power levels can be greater than 150 watts.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: November 19, 2002
    Assignee: PerkinElmer Optoelectronics, N.C., Inc
    Inventors: Daniel Joseph O'Hare, Richard O. Shaffner, Richard P. Gilliard
  • Patent number: 6447738
    Abstract: A process for the extraction of alumina, iron oxide and titanium dioxide from bauxite ore and clays, and other ore bodies and feedstocks. The process starts by sulfuric acid leaching of the feedstocks in pressure autoclaves at about 200° C. and appropriate pressure. A leach liquor of sulfate salts of aluminum, iron and titanium is obtained. Any iron values are converted to a ferrous state. A recycled potassium sulfate helps produce double aluminum alkali sulfate crystals in the reduced leach liquor. The crystals are removed at about 20°-60° C. with the help of SO2 gases that reduce the ferric. Such double salt is hydrolyzed into a basic aluminum alkali precipitated sulfate salt. This is then dried and calcined at about 950° C. Any alkali sulfate is washed out and recycled. The remainder is alumina. The ferrous sulfate is crystallized out at about 10° C. It is dried and calcined at about 450° C. to produce an iron oxide mixed with other sulfate salts that can be washed out and recycled.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: September 10, 2002
    Assignee: Solv-Ex Corporation
    Inventors: John S. Rendall, Massoud Ahghar, Jerry V. Fox, Fred A. Aiken
  • Patent number: 6376993
    Abstract: An arc lamp system comprises a power supply coupled to a xenon arc lamp through an interface constructed on a heavy printed circuit board. Such plugs directly into an igniter printed circuit board. In turn, a xenon arc lamp module with heatsinks plugs directly onto banana plugs bolted on the interface printed circuit board. Copper traces buried on inner layers of the interface printed circuit board are very wide and heavy, and kept as short as possible.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 23, 2002
    Assignee: PerkinElmer Optoelectronics, N.C., Inc.
    Inventors: Alexander D. Romanczuk, Mohammad Khan
  • Patent number: 6351058
    Abstract: An integrated compound reflector ceramic arc lamp comprises three internal mirrors. Top and bottom concave mirrors encircle the inter-electrode gap. The third mirror is convex and is mounted coaxially on the stem of the cathode and faces a sapphire window. Its appearance is like that of a 360 ° apron. Light rays emitted from the inter-electrode gap below a critical elevation angle will be reflected off the bottom concave mirror. Such rays bounce only once before exiting through the window to an external focus. Light rays emitted from the inter-electrode gap above the critical elevation angle, will be reflected off the top concave mirror. Such rays will bounce twice before exiting through the window to the focus. The rays that do reflect from the top concave mirror are directed to the convex cathode apron reflector, and from there will be reflected out the window to the focus.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: February 26, 2002
    Assignee: EG&G ILC Technology, Inc.
    Inventor: Roy D. Roberts
  • Patent number: 6336074
    Abstract: An improved GPS navigation receiver for converting range and range-rate information from microwave radio transmissions from orbiting satellites and for determining a position of the receiver from a processing of the information and an output connected to provide the determined position on a display. The improvement comprises a database of maps stored in a portable document format (PDF) file independent of any hardware, software and operating system used to create it. The PDF file provides for a description of documents including any combination of text, graphics and images in a device-independent and resolution-independent format. The database is connected to output selected ones of the maps on the display with hypertext access on points-of-interest.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: January 1, 2002
    Assignee: Trimble Navigation Limited
    Inventor: Arthur N. Woo
  • Patent number: 6332137
    Abstract: A recognition system comprises at least two field-programmable logic array devices connected to a common vector-input port of an array of a zero-instruction-set computers. Each field-programmable logic array device is configured to preprocess data from different respective media inputs and provide feature extraction vectors to the common vector-input port. Neural networks within the zero-instruction-set computer recognize the input patterns by comparing in parallel their vectors with those stored in each neural network cell. A variety of recognition jobs are made possible by changing the programming on-the-fly of the field-programmable logic array devices to suit each new job.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: December 18, 2001
    Inventors: Toshikazu Hori, Guy Paillet, Jeffrey M. Woo
  • Patent number: 6316867
    Abstract: A low-cost ceramic arc lamp comprises an optical coating on a sapphire window, a window shell flange, and a body sleeve. A gas-fill tubulation attaches to the side of the body sleeve and permits a charge of xenon gas to be injected during manufacture. This contrasts with the prior art where the xenon gas is introduced through the anode base. A single-piece strut assembly is used that is compatible with mass-production techniques. The single-piece strut assembly supports and suspends a cathode inside an elliptical reflector. An anode flange replaces a more conventional shell, copper anode base, and base support ring. A tungsten anode completes the lamp. All of these parts are brazed together in an assembly process that is far less complex than the prior art.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: November 13, 2001
    Assignee: EG&G ILC Technology, Inc.
    Inventors: Roy D. Roberts, Rodney O. Romero
  • Patent number: 6297591
    Abstract: An arc lamp comprising a hollowed-anode electrode with an arc-face having a central hole extending to an internal chimney. An opposing cathode electrode faces the hollowed anode electrode for providing a short electric arc around the central hole in the arc-face of the hollowed anode electrode. The anode and cathode electrodes are disposed in an inert gas, such as xenon. The internal gas is subject to an “arc wind” for transporting metal deposits downstream of the short electric arc and flowing from the short electric arc down the chimney. Such operation provides for an improvement in arc lamp life because the reflector blackens far less rapidly. A magnetic z-pinch pumping mode can be used to move the arc wind away from the reflector.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: October 2, 2001
    Assignee: ILC Technology, Inc.
    Inventor: Roy D. Roberts
  • Patent number: D481803
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: November 4, 2003
    Inventors: Brett H. Gordon, Bryon M. Phillips