Patents Examined by Jeffrey Hofsass
  • Patent number: 5712638
    Abstract: A remote control transmitter comprising at least one transmission channel for transmitting a code word to a system controller and for operating system operational functions controllable thereby; a plurality of transmission channel groups, each group having at least one transmission channel therein; at least one switch for activation of the transmitter, said switch having an operational mode and a standby mode; means for transmitting the code word to the controller and activated upon transition of the switch from the operational mode to the standby mode; and, using the same switch or switches both for selecting the channel group and for transmitting channel commands.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: January 27, 1998
    Assignee: Directed Electronics, Inc.
    Inventor: Darrell Issa
  • Patent number: 5710551
    Abstract: A system for the remote monitoring of in-home self-medication to assure compliance with prescribed dosage schedules. The system comprises at least one subscriber home medication station which interfaces with a communications link and a remote central monitoring station also interfaced with the link and operative to receive and analyze messages transmitted by the home medication station. The preferred home medication station embodiment transmits messages to the central station over the communications link each time the home medication station is accessed for a dosage of medication. Central station computer means verify receipt of such signals within each subscriber's uniquely scheduled dosage time windows, and alert an operator to take appropriate action if a dosage schedule error is detected.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: January 20, 1998
    Inventor: Donald G. Ridgeway
  • Patent number: 5708427
    Abstract: A vehicle's position is determined, normally within .+-.0.37 inches, relative to an imaginary center line of a road lane along which are buried, normally about every 13 feet, completely passive resonant circuits, normally each a simple, inexpensive and durable 1-turn 11.5" diameter shallow loop of #12 copper wire in series with a proper capacitor, nominally 10 nanofarads, for resonance. In-lane positional determination is in and by a phase detection circuit, and process. A low-power r.f. electromagnetic field, normally 1.9432 MHz, is maintained in a (i) vertically- or (ii) horizontally-oriented first loop, normally a 6-turn 6-inch coil. Resonance is electromagnetically induced in nearby road coils; radiated fields are not involved. The induced r.f. field is itself then detected in a another, second, loop means within the vehicle.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: January 13, 1998
    Inventor: E. William Bush
  • Patent number: 5705979
    Abstract: An interface unit interposed between a central alarm panel and a string of smoke detectors interconnected by a three-wire bus. Two wires of the bus carry AC power and the third wire is an interunit signalling wire. When an individual detector senses a smoke condition, it places a voltage on the signalling wire. The other detectors sound their alarms upon detecting this voltage. The interface unit senses this voltage and notifies the central alarm panel, with the sensing circuitry having a variable high input impedance and being powered solely from the signalling wire. The interface unit includes a test button which, when actuated, disables communications to the central alarm panel for a predetermined period of time. During this time, the interface unit places a periodic signal on the signalling wire, which causes all of the detectors to "beep" while that signal is present. The interface unit also senses the absence of AC power on the bus for notifying the alarm panel of such AC power failure.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: January 6, 1998
    Assignee: Tropaion Inc.
    Inventors: Robert A. Fierro, Bruce A. Meyer
  • Patent number: 5705984
    Abstract: An intrusion detection system. An RF energy source transmits energy into a ransmission cable that has a characteristic impedance subject to change by deformation of the cable. The cable is buried along a path that corresponds to a perimeter to be monitored. When an intruder places weight in the vicinity of the cable, the cable deforms and changes its characteristic impedance. Consequently a portion of energy transmitted into the cable reflects back where time-domain or frequency-domain reflectometry apparatus uses the reflected energy to identify the location of the intrusion along the cable and provide other characteristics of the intruder.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: January 6, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Douglas H. Wilson
  • Patent number: 5703562
    Abstract: A method is described for transferring data from an unsecured computer to a secured computer. The method includes transmitting the data and then receiving the data. Next, the data is retransmitted and rereceived. Then, it is determined if errors were introduced when the data was transmitted by the unsecured computer or received by the secured computer. Similarly, it is determined if errors were introduced when the data was retransmitted by the unsecured computer or rereceived by the secured computer. A warning signal is emitted from a warning device coupled to the secured computer if (i) an error was introduced when the data was transmitted or received, and (ii) an error was introduced when the data was retransmitted or rereceived.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: December 30, 1997
    Assignee: Sandia Corporation
    Inventor: Curt A. Nilsen
  • Patent number: 5686894
    Abstract: A two-terminal integrated circuit magnetic-field detector, for use in detecting a low level of a liquid in a vehicle, has a Hall element, a Schmitt type comparator, an anti-sloshing accumulator such as an up-down counter, and a latching driver all connected in tandem. The anti-sloshing accumulator is for producing a signal that is the integral as a function of time of the binary comparator output signal. During sloshing, when the average liquid level is near that at which a low-level warning signal is desired, the accumulator signal climbs in a vacillating manner. The latching driver is connected across the two integrated circuit (I.C.) terminals and latches on when the accumulator signal reaches a predetermined value, dropping the impedance across the two I.C terminals. A liquid level indicating lamp is connected in series with a source of DC voltage and the two I.C. terminals, so that when the average position of the floating magnet approaches that of the I.C.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: November 11, 1997
    Inventors: Ravi Vig, Teri Tu, Alberto Bilotti
  • Patent number: 5684453
    Abstract: An electronic basketball training apparatus that instructs a player to move to a sequence of zones and allows the player a limited amount of time to make a basket in each zone. The apparatus computes results and statistics which can be printed out or viewed from a computer screen. The invention can have the computer automatically communicate or allow a coach to communicate the next zone to the player. The invention uses a switch sensor in the basketball net to sense when a basket is made, laser beam sensors on the floor to locate the position of the player, a controller, memory, software, a visual display terminal, a printer, and a speaker to perform the training routine.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: November 4, 1997
    Inventor: Scott A. Welch
  • Patent number: 5682146
    Abstract: Method of monitoring the quality of an advancing yarn by continuously measuring the yarn tension, which includes determining the progression of the yarn tension upon occurrence of a defined failure (failure record), storing the failure record in a data memory, comparing the measured yarn tension with the failure record and generating an alarm signal, when a range of the yarn tension progression shows a similarity to the failure record.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: October 28, 1997
    Assignee: Barmag AG
    Inventor: Bernd Neumann
  • Patent number: 5675329
    Abstract: A method of obtaining a second function from keys on a standard QWERTY configured computer keyboard that have only a first function when struck individually is disclosed. First, the force applied by the user on the keyboard is measured and detected during a first period of time, and the normal level of force applied by the user is determined. Next, a second function actuating force which is greater than the normal force applied by the user is selected, and the force applied by the user on a keyboard during a second period of time is measured and detected. It is then determined whether the force applied by the user during the second period of time is greater than the second function actuating force, and if so, a computer operatively coupled to the keyboard is caused to perform a second function associated with the key. Otherwise, the computer performs the first function associated with the key.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: October 7, 1997
    Assignee: International Business Machines Corporation
    Inventors: John Howard Barker, Gennaro Battiloro, Gary Robert McClurg, Guy Francis Verrier, Gary Edward Webb
  • Patent number: 5673030
    Abstract: A zero inrush visual or visual/audible alarm circuit which includes a transistor switch and resistor combination connected in series with a storage capacitor provides inrush resistance for a period following initial power-on. The transistor switch may be controlled by a microcontroller or a simple timer.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: September 30, 1997
    Assignee: Wheellock, Inc.
    Inventor: Joseph Kosich
  • Patent number: 5673019
    Abstract: This invention has an Automatic Safety Turn Signal Adapter mounted on the steering shaft of a vehicle to control the flow of electricity. When the steering shaft is turned to the right or left the electric current from the vehicle battery is directed by the adapter to the electrodes that control the right or left side turn signals of the vehicle. The negative terminal of the battery is grounded to the vehicle frame. Power input flows from the battery positive pole, to the electrical apparatus of the adapter, to the turn signal lamps, to the negative grounded frame, and back to the battery negative pole, completing the electric circuit. As the current flows from the positive pole of the battery it passes through an electric circuit breaker which causes the turn signals to flash. The adapter has a switch to manually turn the turn signals off and on and a switch to manually turn the 4-way safety flashers off and on.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: September 30, 1997
    Inventor: Joseph L. Dantoni
  • Patent number: 5666108
    Abstract: A telemetry data selection method is used with a preprocessor which receives data arranged in a predetermined format corresponding to predetermined parameters of subjects to be tested and which successively outputs data words each accompanied by a tag word. The data words have values for predetermined sets of the parameters, and the preprocessor generates the tag words with predetermined tags identifying the sets. The data and tag words are provided to a plurality of word selector and processor devices each associated with several digital-to-analog converters (DAC's). Each DAC is arbitrarily assignable to any one of the parameter sets, and data for each DAC may be arbitrarily unpacked and scaled. The DAC assignments, unpacking, and scaling may be conveniently changed during a test in which data is being telemetered.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: September 9, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Harold A. Duffy
  • Patent number: 5656993
    Abstract: A tire monitor includes a pressure sensor, a temperature sensor, an A/D converter, and a microprocessor. The microprocessor has a sleep mode for conserving power and an output of the microprocessor controls the power applied to the pressure sensor and to the temperature sensor. A modulator and antenna are coupled to the microprocessor for transmitting data from the tire. Coupling between a monitor and a receiver is enhanced by extending a receiving antenna downwardly from the chassis of the vehicle, e.g. from the frame of a tractor.The tire monitor is fabricated on a small printed circuit board with terminals for programming or encoding each monitor with a unique identification code during manufacture of the monitor. Terminals are also provided for disabling the transmitter with a jumper until the monitor is installed in a tire.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: August 12, 1997
    Assignee: Semisystems, Inc.
    Inventor: John J. Coulthard
  • Patent number: 5657007
    Abstract: A remote warning system is provided for signalling to occupants of a garbage dumpster the approach of a garbage truck. A first warning device is carried by the garbage truck. The first warning device has a transmitter for transmitting a first signal indicative of the approach of the garbage truck. A second warning device attached to the garbage dumpster includes a receiver for receiving the first signal and for providing an output in response to receipt of the first signal. An alarm in the second warning device is coupled to the receiver for warning occupants of the garbage dumpster, in response to the output of the receiver, of the approach of the garbage truck.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: August 12, 1997
    Inventors: Thomas M. Anderson, Patrick E. Powers
  • Patent number: 5633625
    Abstract: An exponentially decaying chime sound is generated with a single tri-statable output pin from a microprocessor which is implemented using a single digital output pin line to create states of low, high and disconnect which are input to a control circuit for output to a speaker. Preferably, the control circuit comprises a low pass filter in series with a buffer. Preferably, the buffer is a Darlington transistor. Preferably, the speaker is an electro-mechanical device, alternatively it may be a piezo-resistive device. A method is disclosed for generating a desired audible chime signal with a chime generating circuit regulating a tri-statable output via a single pin of a microprocessor to approximately generate a desired signal frequency, and preferably includes regulating said tri-statable output to produce amplitude decay of the desired signal frequency over time.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: May 27, 1997
    Assignee: Saturn Electronics & Engineering, Inc.
    Inventors: Guy J. Gaub, Ray M. Hallenbeck
  • Patent number: 5627511
    Abstract: A distance measuring system for an automotive vehicle is provided. The distance measuring system outputs laser pulse signals at given angular intervals over an object detectable zone, and receives a signal produced by reflection of one of the outputted signals from a reflective object to determine the distance to the object. The distance measuring system also includes an object type determining function of determining a type of the object present in the object detectable zone. When there are a plurality of signals produced by dispersion of a single shot of the laser pulse signals, and when distances derived by signals reflected from most of the object detectable zone show given shorter distance values, the object present in the object detectable zone is identified as a particle such as snow or fog floating in the air.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: May 6, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Kiyokazu Takagi, Yoshiaki Hoashi
  • Patent number: 5621389
    Abstract: A fire detection system includes an elongated liquid filled tube with a fluid coupled alarm switch, with a flexible diaphragm which senses a change from the liquid to vapor phase in the presence of an overheat or fire condition to provide an alarm. To prevent false alarms due to normal expansion of the liquid under changing ambient temperature conditions, a compensator is provided which in one form is a pair of mechanically coupled bellow type containers, filled with the same liquid which will expand at the same rate as the fluid under normal ambient temperature conditions but in a fire condition will resist faster expansion thus causing the alarm switch to be actuated. In another embodiment, a bimetallic bellows is utilized to match the liquid expansion but resist greater vapor pressure. Yet in another embodiment the change in liquid flow rate due to a fire condition is sensed to prevent further accommodation to the normal increase in volume of the liquid.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 15, 1997
    Assignee: Whittaker Corp.
    Inventor: Robert A. Fellows
  • Patent number: 5610577
    Abstract: An automobile front-wheel orientation and turning-angle indicator is arranged at the center of the steering wheel to indicate the orientation and turning-angle of the front-wheel. The indicator comprises a rotating disk, a scale disk, an indicator disk, and a housing. Wherein the scale disk has a dead weight to maintain at all times a constant orientation. A rotating disk is located at the lower part of the whole indicator and is mounted on the steering wheel. The indicator is driven by the rotating disk through transmission means, so as to produce a rotation relative to the scale disk, and to achieve the purpose of indicating orientation and turning-angle of the front-wheel.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: March 11, 1997
    Inventor: Jin-Lai Hwang
  • Patent number: 5610579
    Abstract: A controller for an electrical switching device such as a motor starting contactor including separable contacts, an operating mechanism for operating the separable contacts and a control mechanism responsive to a plurality of control sources for controlling the operating mechanism, includes a plurality of light emitting diode indicators each of which corresponds to one of the control sources; a membrane pushbutton; and a selection circuit, responsive to the pushbutton for selecting one of the control sources, including a circuit for detecting actuation of the pushbutton; a circuit responding to the actuation for sequentially indicating representations of at least some of the control sources on the corresponding ones of the indicators; and a circuit for detecting de-actuation of the pushbutton to select one of the control sources the representation of which is indicated on the corresponding one of the indicators at the time of the de-actuation.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: March 11, 1997
    Assignee: Eaton Corporation
    Inventors: Michael G. Early, Pamela S. Combs