Patents by Inventor Frederic Broyde

Frederic Broyde 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).

  • Publication number: 20110102100
    Abstract: The invention relates to a method and a device for pseudo-differential transmission in interconnections used for sending a plurality of electrical signals. The ends of an interconnection having 4 transmission conductors and a return conductor distinct from the reference conductor are each connected to a termination circuit. Three damping circuits are connected between the return conductor and the reference conductor. The transmitting circuits receive at their inputs the signals from the 4 channels of the two sources, and are connected to the conductors of the interconnection. A transmitting circuit in the activated state produces modal electrical variables, each modal electrical variable being allocated to one and only one channel.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 5, 2011
    Applicant: EXCEM
    Inventors: Frédéric BROYDE, Everlyne Clavelier
  • Publication number: 20110095838
    Abstract: The invention relates to an interfacing device for transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention comprises signal terminals and a common terminal. A receiving circuit delivers, when the receiving circuit is in the activated state, “output signals of the receiving circuit” determined each by a linear combination of the voltages between one of the signal terminals and the common terminal, to the destination. A termination circuit is such that, when it is in the activated state, it is approximately equivalent, for the signal terminals and the common terminal, to a (m+1)-terminal network such that, for small signals, the impedance matrix, with respect to the common terminal, of the (m+1)-terminal network is equal to a wanted non-diagonal matrix of size m×m.
    Type: Application
    Filed: December 9, 2010
    Publication date: April 28, 2011
    Applicant: EXCEM
    Inventors: Frédéric BROYDE, Evelyne Clavelier
  • Patent number: 7932741
    Abstract: The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention includes signal terminals and a common terminal distinct from the reference terminal (ground). A transmitting circuit receiving the input signals of the transmitting circuit coming from a source delivers, when the transmitting circuit is in the activated state, currents to the signal terminals. A receiving circuit delivers, when the receiving circuit is in the activated state, output signals of the receiving circuit determined each by the voltage between one of the signal terminals and the common terminal, to the destination. A termination circuit is such that, when it is in the activated state, it is approximately equivalent, for the signal terminals and the common terminal, to a network consisting of 4 branches, each branch being connected to the common terminal and to one of the signal terminals.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: April 26, 2011
    Assignee: Excem SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Publication number: 20110084751
    Abstract: The invention relates to an interfacing device for transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention comprises signal terminals and a common terminal. A transmitting circuit receives the input signals of the transmitting circuit coming from a source and delivers, when the transmitting circuit is in the activated state, currents to the signal terminals, each of the currents being mainly determined by one or more of the input signals of the transmitting circuit, one or more of the currents being not mainly determined by only one of the input signals of the transmitting circuit. The balancing circuit is such that, when the transmitting circuit is in the activated state, the current flowing out of the common terminal approximates the opposite of the sum of the currents flowing out of the signal terminals.
    Type: Application
    Filed: December 16, 2010
    Publication date: April 14, 2011
    Applicant: EXCEM
    Inventors: Frédéric BROYDE, Evelyne CLAVELIER
  • Publication number: 20110074502
    Abstract: The invention relates to an amplifier capable of delivering a plurality of output signals, these output signals being controlled by a plurality of input signals. A multiple-input and multiple-output amplifier of the invention comprises a common input terminal, 4 signal input terminals, 4 signal output terminals, a common terminal amplifier, 4 active sub-circuits and a feedback network. Each active sub-circuit has a sub-circuit input terminal connected to one of the signal input terminals, a sub-circuit output terminal connected to one of the signal output terminals and a sub-circuit common terminal. The feedback network has four C terminals and one R terminal. Each of said C terminals of the feedback network is coupled to the sub-circuit common terminal of one of said active sub-circuits. The output terminal of the common terminal amplifier is coupled to said R terminal of the feedback network.
    Type: Application
    Filed: November 29, 2010
    Publication date: March 31, 2011
    Applicant: EXCEM
    Inventors: Frédéric BROYDE, Evelyne CLAVELIER
  • Publication number: 20110074488
    Abstract: The invention relates to a receiving circuit for transmission through interconnections used for sending a plurality of electrical signals. Each of the output signals of the receiving circuit produced by the receiving circuit of the invention is delivered by an output of a combining circuit having 4 inputs and 4 outputs. Each signal terminal of the receiving circuit is connected to a first input terminal of a differential circuit, the differential circuit also having a second input terminal and a single output terminal. The common terminal of the receiving circuit is connected to the second input terminal of each of the differential circuits. Each input of the combining circuit is coupled to the output terminal of one of the differential circuits. Each of the output signals of the receiving circuit is a linear combination of the voltages between one of the signal terminals and the common terminal.
    Type: Application
    Filed: December 6, 2010
    Publication date: March 31, 2011
    Applicant: EXCEM
    Inventors: Frédéric BROYDE, Evelyne Clavelier
  • Patent number: 7884648
    Abstract: The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention includes signal terminals and a common terminal. A transmitting circuit receives the input signals of the transmitting circuit coming from a source. The output of the transmitting circuit delivers, when the transmitting circuit is in the activated state, voltages between one of the signal terminals and the reference terminal (ground). A receiving circuit delivers, when the receiving circuit is in the activated state, output signals of the receiving circuit determined each by the voltage between one of the signal terminals and the common terminal, to the destination. In the closed state, the common terminal switching circuit is, for the common terminal, equivalent to a voltage source delivering a constant voltage, connected in series with a passive two-terminal circuit element presenting a low impedance.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 8, 2011
    Assignee: Excem SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Publication number: 20100253446
    Abstract: The invention relates to a method and a device for pseudo-differential transmission in interconnections used for sending a plurality of electrical signals. The ends of an interconnection having 4 transmission conductors and a return conductor distinct from the reference conductor are each connected to a termination circuit. Three damping circuits are connected between the return conductor and the reference conductor. The transmitting circuits receive at their inputs the signals from the 4 channels of the two sources, and are connected to the conductors of the interconnection. The receiving circuits are connected to the conductors of the interconnection, each receiving circuit being such that the 4 channels of a source connected to a transmitting circuit in the activated state are sent to the four channels of the destinations without noticeable external crosstalk.
    Type: Application
    Filed: May 29, 2008
    Publication date: October 7, 2010
    Applicant: EXCEM SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Publication number: 20100248673
    Abstract: The invention relates to a method for radio reception using a plurality of antennas and to a receiver for radio transmission using a plurality of antennas. In a receiver for radio transmission with multiple antennas of the invention, 3 antennas are connected to the input ports of a device for transmission which transmits the electrical signals stemming from the 3 antennas to the input terminals of a multiple-input-port and multiple-output-port amplifier having 3 input ports and 3 output ports. Each output port of the multiple-input-port and multiple-output-port amplifier is connected to the input of an analog processing and conversion circuit which outputs digital signals. The output of each analog processing and conversion circuit is connected to an input of a multiple-input signal processing device, whose output is connected to the destination.
    Type: Application
    Filed: June 5, 2007
    Publication date: September 30, 2010
    Applicant: EXCEM SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Publication number: 20100244948
    Abstract: The invention relates to an amplifier capable of producing a plurality of output signals, these output signals being controlled by a plurality of input signals. A multiple-input and multiple-output amplifier of the invention comprises includes 4 signal input terminals, 4 signal output terminals, 4 active sub-circuits and a feedback network. Each active sub-circuit has a sub-circuit input terminals connected to one of the signal input terminals, a sub-circuit output terminal connected to one of the signal output terminals and a sub-circuit common terminal. The feedback network uses mutual induction between windings. The feedback network has terminals connected to the sub-circuit common terminal of the active sub-circuits. The feedback network presents an impedance matrix producing a negative feedback such that the transfer admittance matrix of the multiple-input and multiple-output amplifier approximates a given admittance matrix.
    Type: Application
    Filed: April 26, 2007
    Publication date: September 30, 2010
    Applicant: EXCEM SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Publication number: 20100213971
    Abstract: The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention includes signal terminals and a common terminal. A transmitting circuit receives the input signals of the transmitting circuit coming from a source. The output of the transmitting circuit delivers, when the transmitting circuit is in the activated state, voltages between one of the signal terminals and the reference terminal (ground). A receiving circuit delivers, when the receiving circuit is in the activated state, output signals of the receiving circuit determined each by the voltage between one of the signal terminals and the common terminal, to the destination. In the closed state, the common terminal switching circuit is, for the common terminal, equivalent to a voltage source delivering a constant voltage, connected in series with a passive two-terminal circuit element presenting a low impedance.
    Type: Application
    Filed: May 20, 2008
    Publication date: August 26, 2010
    Applicant: EXCEM SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Patent number: 7764083
    Abstract: The invention relates to a method and a device for transmission with reduced crosstalk in interconnections used for sending a plurality of signals, such as the interconnections made with flat multiconductor cables, or with the tracks of a printed circuit board, or inside an integrated circuit. An interconnection with four parallel transmission conductors plus a reference conductor has each of its ends connected to a termination circuit. The transmitting circuit receives at its input the signals of the four channels of the source and its output terminals are connected to the conductors of the interconnection. The receiving circuit(s) input terminals are connected to the conductors of the interconnection, and its four output channels are connected to the destination. The signals of the four channels of the source are sent to the four channels of the destination, without noticeable crosstalk.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: July 27, 2010
    Inventors: Frederic Broyde, Evelyne Clavelier
  • Publication number: 20100128814
    Abstract: The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention includes signal terminals and a common terminal. A transmitting circuit receives the input signals of the transmitting circuit coming from a source. The output of the transmitting circuit delivers, when the transmitting circuit is in the activated state, voltages between one of said signal terminals and said common terminal. A receiving circuit delivers, when the receiving circuit is in the activated state, output signals of the receiving circuit determined each by the voltage between one of the signal terminals and the common terminal, to the destination. The balancing circuit is such that, when the transmitting circuit is in the activated state, the current flowing out of the common terminal approximates the opposite of the sum of the currents flowing out of the signal terminals.
    Type: Application
    Filed: May 16, 2008
    Publication date: May 27, 2010
    Applicant: EXCEM SAS
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Publication number: 20100124295
    Abstract: The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention includes signal terminals and a common terminal distinct from the reference terminal (ground). A transmitting circuit receiving the input signals of the transmitting circuit coming from a source delivers, when the transmitting circuit is in the activated state, currents to the signal terminals. A receiving circuit delivers, when the receiving circuit is in the activated state, output signals of the receiving circuit determined each by the voltage between one of the signal terminals and the common terminal, to the destination. A termination circuit is such that, when it is in the activated state, it is approximately equivalent, for the signal terminals and the common terminal, to a network consisting of 4 branches, each branch being connected to the common terminal and to one of the signal terminals.
    Type: Application
    Filed: May 8, 2008
    Publication date: May 20, 2010
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Patent number: 7642849
    Abstract: The invention relates to an amplifier capable of producing a plurality of currents at its output terminals, these currents being controlled by a plurality of input voltages. A multiple-input and multiple-output amplifier of the invention includes 4 signal input terminals, 4 signal output terminals, 4 active sub-circuits and a feedback network. Each active sub-circuit has a sub-circuit input terminal connected to one of the signal input terminals, a sub-circuit output terminal connected to one of the signal output terminals and a sub-circuit common terminal. The feedback network has terminals connected to the sub-circuit common terminal of each active sub-circuit. The feedback network presents, in a known frequency band, an impedance matrix producing a negative feedback such that the transfer admittance matrix of the multiple-input and multiple-output amplifier approximates a given admittance matrix.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: January 5, 2010
    Assignee: Excem SAS
    Inventors: Frederic Broyde, Evelyne Clavelier
  • Publication number: 20090310973
    Abstract: The invention relates to a transmitting device for transmission through space, using electromagnetic waves of the infrared and/or visible and/or ultraviolet bands produced by one or several diodes producing electroluminescent light. The device is connected by its input terminals (1) to an a.c. energy distribution system. A mains filter (2) reduces the conducted electromagnetic disturbances produced by the power circuits comprising a rectifier (3), a power-factor-correction circuit (4), an auxiliary power supply (5) and a DC-to-DC converter (8). The output of the DC-to-DC converter (8) is connected to several high power light-emitting diodes connected in series (9).
    Type: Application
    Filed: March 6, 2007
    Publication date: December 17, 2009
    Applicant: ZXTALK ASSETS, LLC
    Inventors: Frederic Broyde, Evelyne Clavelier
  • Publication number: 20090121743
    Abstract: The invention relates to a method and a device for transmission with reduced crosstalk in interconnections used for sending a plurality of signals, such as the interconnections made with flat multiconductor cables, or with the tracks of a printed circuit board, or inside an integrated circuit. An interconnection with four parallel transmission conductors plus a reference conductor has each of its ends connected to a termination circuit. The transmitting circuit receives at its input the signals of the four channels of the source and its output terminals are connected to the conductors of the interconnection. The receiving circuit(s) input terminals are connected to the conductors of the interconnection, and its four output channels are connected to the destination. The signals of the four channels of the source are sent to the four channels of the destination, without noticeable crosstalk.
    Type: Application
    Filed: January 12, 2009
    Publication date: May 14, 2009
    Applicant: ZXTALK ASSETS, LLC
    Inventors: Frederic Broyde, Evelyne Clavelier
  • Patent number: 7477069
    Abstract: The invention relates to a method and a device for transmission with reduced crosstalk in interconnections used for sending a plurality of signals, such as the interconnections made with flat multiconductor cables, or with the tracks of a printed circuit board, or inside an integrated circuit. An interconnection with four parallel transmission conductors plus a reference conductor has each of its ends connected to a termination circuit. The transmitting circuit receives at its input the signals of the four channels of the source and its output terminals are connected to the conductors of the interconnection. The receiving circuit(s) input terminals are connected to the conductors of the interconnection, and its four output channels are connected to the destination. The signals of the four channels of the source are sent to the four channels of the destination, without noticeable crosstalk.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: January 13, 2009
    Assignee: ZXtalk Assets, LLC
    Inventors: Frederic Broyde, Evelyne Clavelier
  • Publication number: 20080272840
    Abstract: The invention relates to an amplifier capable of producing a plurality of currents at its output terminals, these currents being controlled by a plurality of input voltages. A multiple-input and multiple-output amplifier of the invention includes 4 signal input terminals, 4 signal output terminals, 4 active sub-circuits and a feedback network. Each active sub-circuit has a sub-circuit input terminal connected to one of the signal input terminals, a sub-circuit output terminal connected to one of the signal output terminals and a sub-circuit common terminal. The feedback network has terminals connected to the sub-circuit common terminal of each active sub-circuit. The feedback network presents, in a known frequency band, an impedance matrix producing a negative feedback such that the transfer admittance matrix of the multiple-input and multiple-output amplifier approximates a given admittance matrix.
    Type: Application
    Filed: December 19, 2006
    Publication date: November 6, 2008
    Applicant: EXCEM SAS
    Inventors: Frederic Broyde, Evelyne Clavelier
  • Patent number: 7408426
    Abstract: The invention relates to a method and a device for transmission without crosstalk in interconnections used for sending a plurality of signals, such as the interconnections made with flat multiconductor cables, or with the tracks of a printed circuit board, or inside an integrated circuit. An interconnection with four parallel transmission conductors plus a reference conductor has each of its ends connected to a termination circuit. The transmitting circuit receives at its input the signals of the four channels of the source and its output terminals are connected to the conductors of the interconnection. The receiving circuit(s) input terminals are connected to the conductors of the interconnection, and its four output channels are connected to the destination. The signals of the four channels of an active source are sent to the four channels of the destination, without noticeable crosstalk.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: August 5, 2008
    Assignee: Zxtalk Assets, LLC
    Inventors: Frederic Broyde, Evelyne Clavelier