Patents by Inventor Bruno A. Rist

Bruno A. Rist has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11469516
    Abstract: A multiband antenna system comprises a first massive multiple input multiple output (mMIMO) antenna array comprising a plurality of first antenna elements for use in a first frequency band and at least a second antenna array comprising a plurality of second antenna elements for use in a second frequency band lower than the first frequency band. The second antenna array is at least partially interleaved with the first mMIMO antenna array. The multiband antenna system further includes a distribution network for distributing input and/or output signals of the antenna elements of the second antenna array arranged in a distribution layer, and a transition device.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 11, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ignacio Gonzalez, Christoph Spranger, Bruno Biscontini, Bernhard Rist, Johann Baptist Obermaier
  • Patent number: 5459887
    Abstract: A portable sitz bath therapeutic chair having a substantially rectangular frame to provide a backrest, armrest and a leg rest that enclose and form a basin for holding heated water. Wheels mounted at the corners of the frame allow the chair to be moved about. The chair also includes controls for circulating the heated water to maintain the temperature and provide a massaging action. Controls on the armrest of the chair allow the a heating and pumping system to be turned on and off by a patient. The electronic circuit for circulating the heated water in the chair includes safety devices to prevent operation should the pump for circulating the water not be working or if a malfunction causes the water to overheat.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: October 24, 1995
    Assignee: Garry D. Roman
    Inventors: D. Garry Roman, Bruno A. Rist
  • Patent number: 5446795
    Abstract: A universal decoder for scrambled television signals in which the signals are processed in a circuit by converting them to other frequencies and then removing the scrambling signal. One method uses one or more narrow filters at a fixed frequency with the television signal being heterodyned down to the frequency of the filters to place the scrambling signals in the rejection band of one of the filters. A second method eliminates scrambling signals by filters at video frequencies. In this method, the frequency in phase with the television signal carrier of a television channel is regenerated by filtering it with a narrow crystal filter and by means of an automatic phase comparison (APC) loop. The regenerated carrier is then used to synchronously demodulate the television signal. A third method for removing the scrambling signals is by use of one or more comb filters.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: August 29, 1995
    Assignee: International Telesystems, Inc.
    Inventors: Adrian J. Devries, Bruno A. Rist
  • Patent number: 5235640
    Abstract: A master decoder for scrambled television signals in which the signals are processed in a circuit by converting them to other frequencies and then removing the scrambling signal. One method uses one or more narrow filters at a fixed frequency with the television signal being heterodyned down to the frequency of the filters to place the scrambling signals in the rejection band of one of the filters. A second method eliminates scrambling signals by filters at video frequencies. In this method, the frequency in phase with the television signal carrier of a television channel is regenerated by filtering it with a narrow crystal filter and by means of an automatic phase comparison (APC) loop. The regenerated carrier is then used to synchronously demodulate the television signal. A third method for removing the scrambling signals is by use of one or more comb filters.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: August 10, 1993
    Assignee: International Telesystems, Inc.
    Inventors: Adrian J. Devries, Bruno A. Rist
  • Patent number: 5079784
    Abstract: A control system for hydro-massage tub systems in which water is circulated through a pump and heater from the tub back to a plurality of jets in the tub to create a turbulent massaging action. The system is comprised of an activating device, a pump, a switch activating circuit, a heater with proportional control and a water level sensing safety system. The pump is controlled by a switching and timing circuit that limits the time the pump is on which is slaved to a heater control circuit to prevent operation of the heater unless the pump is circulating water. The proportional heater control circuit maintains the water temperature within a degree or two of a preset temperature by proportionally reducing power as the temperature approaches the preset limit. The activating device transmits a ignal to the switching and timer circuit when a mechanical plunger isolated from electrical circuits is operated.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: January 14, 1992
    Assignee: Hydr-O-Dynamic Systems, Inc.
    Inventors: Bruno A. Rist, Charles S. Daniels
  • Patent number: 4903297
    Abstract: A Television Signal Transmission Security System which provides a higher degree of security then previously possible by utilizing encoding and decoding technology which effectively prevents pirating by amateurs or experimenters. The television signal transmitted is encoded by injecting one or more modulated interfering signals in specific frequency slots in close proximity to the video carrier. Continuous or alternating interfering signals can be injected either above or below the video carrier between harmonics of the horizontal frequencies. Combinations of interfering signals provide coding techniques making the system virtually pirate proof. The interfering signal is removed by very narrow band rejection filters having a rejection band attenuation greater than about 40 dB over a bandwidth equal to the bandwidth between adjacent harmonics of the horizontal sweep frequency. The filters are constructed using advanced technology to produce the quartz crystal bulk resonators or surface acoustic wave filters.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: February 20, 1990
    Assignee: International Telesystems, Inc.
    Inventors: Bruno A. Rist, Adrian J. DeVries
  • Patent number: 4882772
    Abstract: An electro-optical coherent light beam signal transmission system capable of transmitting signals occupying a wide bandwidth collimated beam for a substantial distance. The system has a coherent light generator modulated at a wide bandwidth and a reflecting mirror system that radiates the modulated coherent light generated in a selected direction and spreads the said coherent light into a collimated beam having a safe energy level distribution. A coherent light receiving module in alignment with the radiated coherent light beam decollimates and focusses the coherent beam on a light sensor. Subsequently the communications signal is distributed to end users through cable systems. The coherent light generator is preferably a semiconductor coherent light generating diode and includes a temperature monitoring and regulating system which maintains coherent light generator at an optimum operating temperature for peak output levels.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: November 21, 1989
    Assignee: Telescript Industries, Inc.
    Inventors: Bruno A. Rist, Alberto L. Casanova
  • Patent number: 4825467
    Abstract: A Television Signal Transmission Security System which provides a higher degree of security then previously possible by utilizing encoding and decoding technology which effectively prevents pirating by amateurs or experimenters. The television signal transmitted is encoded by injecting one or more interfering carriers in specific frequency slots in close proximity to the video carrier. Interfering carriers can be injected either above or below the video carrier between harmonics of the horizontal frequencies. Combinations of interfering carriers provide coding techniques making the system virtually pirate proof. The interfering carrier is removed by very narrow band rejection filters having a rejection band attenuation greater than about 40 db over bandwidth of up to 4000 Hz and a 3 dB bandwidth of approximately 5 kHz. The filters are constructed using advanced technology to produce the quartz crystal bulk resonators or surface acoustic wave filters.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: April 25, 1989
    Assignee: International Telesystems, Inc.
    Inventors: Bruno A. Rist, Adrian J. DeVries
  • Patent number: 4308941
    Abstract: In a wet cycle copier of the small tabletop mounted variety, conversion is made for vending in the absence of frequent key operator attention. Incidence of power interruption provides for a soak cycle to occur wherein the liquid toner is cycled through the machine without drum rotation. Rotation of a glass selenium coated drum against a dried and abrading liquid applicator is avoided. After the soak cycle and assuming uninterrupted power, a cleaning cycle is initiated once every 24 hours. Assuming a lack of machine use, this cleaning cycle lubricates both toner application roller and drum to assure a wet toner applicator. Dispersant replenishment is supplied from a large volume reservoir under logic control with provision made for automated machine shutdown where dispersant on demand is not supplied. Provided modes of operation include coin vending, countermechanism vending and direct owner access vending with a tamper proof interface between the provided modes.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: January 5, 1982
    Assignee: 501 Vendacopy, Inc.
    Inventors: Bruno A. Rist, Michael D. D. England, Les R. Cousineau
  • Patent number: 4268805
    Abstract: A circuit for coupling a citizens band transceiver and a broadcast band receiver to a standard automobile antenna. The circuit is comprised of an impedance transforming network connected in series with the standard automobile antenna and a parallel-tuned circuit in series with the broadcast band receiver. The series-tuned network is comprised of a split capacitance for stepping the impedance down from the citizens band transceiver to the lower impedance of a standard automobile antenna. The series-tuned circuit also includes a tuning coil for matching the output of the network to the particular automobile antenna. In series between the automobile antenna and the broadcast band receiver is a parallel-tuned circuit comprised of a capacitor and a tuning coil. To prevent multiplication and excessive voltages in the event the broadcast band receiver should become disconnected, a limiting resistor connects the parallel-tuned circuit to ground.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: May 19, 1981
    Assignee: Tanner Electronic Systems Technology, Inc.
    Inventors: James L. Tanner, Bruno A. Rist, George Sanchez
  • Patent number: 4112377
    Abstract: A converter is disclosed for converting 23-channel citizens band to provide citizens band reception through a standard radio, preferably an automobile radio. The circuit is comprised of an RF amplifier and self-oscillating converter which is switched into the antenna connections of an automobile radio. Conventional auto antenna connectors facilitate easy installation. A pushbutton switch connects the citizens band converter into the line connecting the antenna with the radio. The pushbutton switch also grounds the converter output when switched to standard radio to prevent interference with standard radio reception.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: September 5, 1978
    Assignee: Tanner Electronic Systems Technology
    Inventors: James L. Tanner, Bruno A. Rist
  • Patent number: 4097894
    Abstract: A secured scramble decoder filter comprised of a narrow band filter assembled on a fragile substrate and mounted in a housing wich automatically destroys the filter when any tampering is attempted. The filter is a series tuned network bridging a conductor coupled through a capacitor to a parallel tuned network, which is connected to ground. The coils for the filter are printed on a special electronic glass tube for temperature stability while the capacitors are deposited on the fragile substrate. The filter is mounted in a sealed housing in brackets with a spring, loaded to break the substrate when the device is tampered with to render it inoperative. The device is provided with a mounting screw requiring a special tool for removal so that when the device is mounted any prying in an attempt to remove the device will trigger the destruction of the filter.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: June 27, 1978
    Assignee: Tanner Electronics Systems Technology, Inc.
    Inventors: James L. Tanner, Bruno A. Rist, George Sanchez, Balazs Becht
  • Patent number: 4091698
    Abstract: A rotary cutting blade control system which automatically varies the feed rate to maintain a constant material removal rate. The system senses the current in an electric motor driving the cutting blade and automatically adjusts the feed rate to maintain the motor current constant. The system adjusts a hydraulic valve in the hydraulic system operating the blade support to move the blade in or out whenever the current deviates from a standard which is set by the operator. The control system also includes a circuit for detecting when the load on the blade has dropped below a preset level indicating that the blade has completed the cut and automatically commands the hydraulic system to return the blade to a start position. An additional control circuit operating in conjunction with the no-load sensing circuit automatically produces a command to stop the blade close to the work piece to save time and motion when multiple cuts are being performed.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: May 30, 1978
    Assignee: Western Gear Corporation
    Inventors: Robert F. Obear, Bruno A. Rist
  • Patent number: 4074311
    Abstract: A system for subscription TV security which is comprised of a scramble signal generator which adds a modulated RF carrier signal to the TV channel transmission. Preferably the frequency of the scramble signal generator is selected to fall within the band of frequencies of the TV channel between the video carrier and the audio carrier. The TV channel is transmitted to receivers encoded with the scramble signal carrier providing false and misleading information, preventing the receiver from reconstituting a coherent picture or sound while this scramble signal is present. The transmitted signal is decoded, (i.e. scramble signal removed), restoring regular reception by filtering with a sharply tuned high-Q notch filter attached to the drop line going to a TV receiver. By careful selection of the band width and attenuation of the filter and pre-emphasis of the channel band, degradation of the video information is prevented.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: February 14, 1978
    Assignee: Tanner Electronic Systems
    Inventors: James L. Tanner, Bruno A. Rist