Patents by Inventor Bruno GRELAUD

Bruno GRELAUD 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).

  • Transmission line with device for limiting losses through impedance mismatch
    Patent number: 10715113
    Abstract: An attenuator having an impedance that is controllable by a first setpoint signal is coupled to a transmission line. A matching circuit having an impedance that is controllable by a second setpoint signal is also coupled to the transmission line. A transformer circuit block also coupled to the transmission line has a complex impedance. A control circuit sets the first and second setpoint signals so as to control a conjugate impedance relationship between the variable impedances presented by the attenuator and matching circuit relative to the complex impedance of the transformer circuit.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: July 14, 2020
    Assignee: STMicroelectronics SA
    Inventors: Bruno Grelaud, Sebastien Pruvost
  • TRANSMISSION LINE WITH DEVICE FOR LIMITING LOSSES THROUGH IMPEDANCE MISMATCH
    Publication number: 20190158069
    Abstract: An attenuator having an impedance that is controllable by a first setpoint signal is coupled to a transmission line. A matching circuit having an impedance that is controllable by a second setpoint signal is also coupled to the transmission line. A transformer circuit block also coupled to the transmission line has a complex impedance. A control circuit sets the first and second setpoint signals so as to control a conjugate impedance relationship between the variable impedances presented by the attenuator and matching circuit relative to the complex impedance of the transformer circuit.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Applicant: STMicroelectronics SA
    Inventors: Bruno GRELAUD, Sebastien PRUVOST
  • Transmission line with device for limiting losses through impedance mismatch
    Patent number: 10236865
    Abstract: An attenuator having an impedance that is controllable by a first setpoint signal is coupled to a transmission line. A matching circuit having an impedance that is controllable by a second setpoint signal is also coupled to the transmission line. A transformer circuit block also coupled to the transmission line has a complex impedance. A control circuit sets the first and second setpoint signals so as to control a conjugate impedance relationship between the variable impedances presented by the attenuator and matching circuit relative to the complex impedance of the transformer circuit.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: March 19, 2019
    Assignee: STMicroelectronics SA
    Inventors: Bruno Grelaud, Sebastien Pruvost
  • TRANSMISSION LINE WITH DEVICE FOR LIMITING LOSSES THROUGH IMPEDANCE MISMATCH
    Publication number: 20180302063
    Abstract: An attenuator having an impedance that is controllable by a first setpoint signal is coupled to a transmission line. A matching circuit having an impedance that is controllable by a second setpoint signal is also coupled to the transmission line. A transformer circuit block also coupled to the transmission line has a complex impedance. A control circuit sets the first and second setpoint signals so as to control a conjugate impedance relationship between the variable impedances presented by the attenuator and matching circuit relative to the complex impedance of the transformer circuit.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 18, 2018
    Applicant: STMicroelectronics SA
    Inventors: Bruno GRELAUD, Sebastien PRUVOST