Patents by Inventor Erwin Spits
Erwin Spits 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).
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Publication number: 20240097801Abstract: A wireless communication device is provided with an in-device capability of characterizing the coupling between a pair of antennas. The wireless communication device determines the coupling through an operating gain measurement and through calibration gain measurements obtained through test ports.Type: ApplicationFiled: September 21, 2022Publication date: March 21, 2024Inventors: Erwin SPITS, Francesco GATTA, Adrianus VAN BEZOOIJEN, Leon METREAUD, Hakan INANOGLU
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Publication number: 20240097800Abstract: A wireless communication device is provided with an in-device capability of characterizing the coupling between a pair of antennas. The wireless communication device determines the coupling through an operating gain measurement and through calibration gain measurements obtained through test ports.Type: ApplicationFiled: September 21, 2022Publication date: March 21, 2024Inventors: Erwin SPITS, Francesco GATTA, Adrianus VAN BEZOOIJEN, Leon METREAUD, Hakan INANOGLU
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Publication number: 20240097736Abstract: A user equipment (UE) is provided that detunes a receive antenna while a transmit antenna transmits. To determine the detuning, the UE first transmits a signal through the transmit antenna while the receive antenna is sequentially coupled through known loads. At each load, the UE determines an input reflection coefficient for a transmit path to the transmit antenna. Based upon the known loads and the corresponding input reflection coefficients, the UE determines a load to couple to the receive antenna to perform the detuning.Type: ApplicationFiled: September 20, 2022Publication date: March 21, 2024Inventors: Adrianus VAN BEZOOIJEN, Francesco GATTA, Erwin SPITS
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Publication number: 20240097333Abstract: A user equipment (UE) is provided that includes an antenna switch array for demultiplexing a reference signal sequentially to each antenna in a plurality of antennas. While the antenna switch array selects an antenna, the UE measures a reflection coefficient for the antenna. The UE then tunes the antenna responsive to the reflection coefficient measurement.Type: ApplicationFiled: September 21, 2022Publication date: March 21, 2024Inventors: Erwin SPITS, Adrianus VAN BEZOOIJEN
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Publication number: 20230387954Abstract: An antenna detuning method includes: time domain duplexing signal transmission and signal reception by a first antenna of a wireless communication device; providing one or more first indications of time domain duplexing and one or more second indications of signal transmission to a semi-autonomous hardware controller of the wireless communication device; and responding, at the semi-autonomous hardware controller of the wireless communication device, to the one or more first indications of time domain duplexing and the one or more second indications of signal transmission by coupling a second antenna of the wireless communication device to receive circuitry during signal reception by the first antenna and to a termination during signal transmission by the first antenna.Type: ApplicationFiled: May 10, 2023Publication date: November 30, 2023Inventors: Erwin SPITS, Adrianus VAN BEZOOIJEN, Francesco GATTA, Ryan Scott Castro SPRING
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Patent number: 9979080Abstract: An apparatus includes a radio-frequency (RF) path that includes an antenna tuner. The apparatus also includes calibration circuitry coupled to the antenna tuner. The calibration circuitry is configured to selectively isolate an antenna from a component of the RF path.Type: GrantFiled: July 29, 2015Date of Patent: May 22, 2018Assignee: QUALCOMM IncorporatedInventors: Adrianus van Bezooijen, Kevin Robert Boyle, Maurice Adrianus de Jongh, Robbin Damen, Erwin Spits, David Loweth Winslow
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Publication number: 20170033454Abstract: An apparatus includes a radio-frequency (RF) path that includes an antenna tuner. The apparatus also includes calibration circuitry coupled to the antenna tuner. The calibration circuitry is configured to selectively isolate an antenna from a component of the RF path.Type: ApplicationFiled: July 29, 2015Publication date: February 2, 2017Inventors: Adrianus van Bezooijen, Kevin Robert Boyle, Maurice Adrianus de Jongh, Robbin Damen, Erwin Spits, David Loweth Winslow
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Patent number: 8912847Abstract: A power amplifier circuit (DIPPA), comprising a driver stage (DR) which is applicable to provide a preamplified driver signal (S_DR) dependent on a predetermined transmit signal. The power amplifier circuit (DIPPA) comprises also a frequency selector (DIP) which is electrically coupled to the driver stage (DR) and which is applicable to separate the driver signal (S_DR) into a first and second signal (S—1, S—2). The first signal (S—1) is associated to a first predetermined and the second signal (S—2) is associated to a second predetermined frequency band. The power amplifier circuit (DIPPA) comprises at least a first and second power amplifier stage (PA1, PA2). The first and second power amplifier stage (PA1, PA2) are electrically coupled to the frequency selector (DIP). The first and second power amplifier stage (PA1, PA2) is operable to provide a first and second amplified signal (S_A1, S—2), respectively, dependent on the first and second signal (S—1, S—2), respectively.Type: GrantFiled: December 3, 2009Date of Patent: December 16, 2014Assignee: Epcos AGInventors: Erwin Spits, Leon C. M. van den Oever
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Patent number: 8686752Abstract: A circuit includes a logic stage, an inverter stage, and a driver stage. The logic stage and the inverter stage are provided with current limiters, which include a D-mode feedback transistor and a component that generates a voltage drop. A feedback loop connects the source and the gate of the D-mode feedback transistor via this component. The driver stage includes E-mode transistors connected in a totem pole that drive a D-mode transistor and an E-mode transistor to connect and disconnect the load circuit.Type: GrantFiled: April 26, 2012Date of Patent: April 1, 2014Assignee: EPCOS AGInventors: Léon C. M. van den Oever, Erwin Spits
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Patent number: 8653854Abstract: A circuit includes E-mode transistors with gate-source junction, a D-mode transistor with gate-source junction. A component generates a voltage drop between the source of the D-mode transistor and the drain of an E mode transistor provided as a signal output. A connection is made between this drain of the E-mode transistor and the gate of the D-mode transistor, and a signal input at the gates of the E-mode transistors.Type: GrantFiled: June 15, 2010Date of Patent: February 18, 2014Assignee: EPCOS AGInventors: Erwin Spits, Léon C. M. van den Oever
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Patent number: 8610464Abstract: The circuit includes an E-mode transistor with gate-source junction, a D-mode transistor with gate-source junction, a component generating a voltage drop between the source of the D-mode transistor and the drain of the E-mode transistor, and a connection between the drain of the E-mode transistor and the gate of the D-mode transistor. The gate of the E-mode transistor is provided for an input signal, and the drain of the E-mode transistor is provided for an output signal.Type: GrantFiled: June 15, 2010Date of Patent: December 17, 2013Assignee: Epcos AGInventor: Erwin Spits
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Patent number: 8436663Abstract: A current-limited differential entry stage compares an input signal to a reference voltage generated by a current-limited transistor or diode configuration. Current limiters comprise a D-mode feedback transistor having a gate-source junction. The D-mode transistor is not conducting between the source and the drain if a gate-source voltage is more negative than a negative threshold voltage, and conducting between the source and the drain, otherwise a feedback connection connects the source of the D-mode feedback transistor to its gate via a component that generates a voltage drop.Type: GrantFiled: June 21, 2010Date of Patent: May 7, 2013Assignee: EPCOS AGInventors: Erwin Spits, Léon C. M. van den Oever
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Publication number: 20120268166Abstract: A circuit includes a logic stage, an inverter stage, and a driver stage. The logic stage and the inverter stage are provided with current limiters, which include a D-mode feedback transistor and a component that generates a voltage drop. A feedback loop connects the source and the gate of the D-mode feedback transistor via this component. The driver stage includes E-mode transistors connected in a totem pole that drive a D-mode transistor and an E-mode transistor to connect and disconnect the load circuit.Type: ApplicationFiled: April 26, 2012Publication date: October 25, 2012Applicant: EPCOS AGInventors: Léon C.M. van den Oever, Erwin Spits
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Publication number: 20120235735Abstract: A power amplifier circuit (DIPPA), comprising a driver stage (DR) which is applicable to provide a preamplified driver signal (S_DR) dependent on a predetermined transmit signal. The power amplifier circuit (DIPPA) comprises also a frequency selector (DIP) which is electrically coupled to the driver stage (DR) and which is applicable to separate the driver signal (S_DR) into a first and second signal (S—1, S—2). The first signal (S—1) is associated to a first predetermined and the second signal (S—2) is associated to a second predetermined frequency band. The power amplifier circuit (DIPPA) comprises at least a first and second power amplifier stage (PA1, PA2). The first and second power amplifier stage (PA1, PA2) are electrically coupled to the frequency selector (DIP). The first and second power amplifier stage (PA1, PA2) is operable to provide a first and second amplified signal (S_A1, S—2), respectively, dependent on the first and second signal (S—1, S—2), respectively.Type: ApplicationFiled: December 3, 2009Publication date: September 20, 2012Inventors: Erwin Spits, Leon C.M. van den Oever
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Patent number: 8258858Abstract: A circuit includes a supply voltage and a control current line including two resistors. A sink current line branches off from the control current line between the resistors. A current sink transistor has an emitter that is connected to the sink current line and a collector that is connected to ground via a first further resistor. At least one reference transistor has an emitter that is connected to its base, to the supply voltage via a second further resistor and to the base of the current sink transistor. The collector of the reference transistor is connected to ground or to an emitter of a further reference transistor, which is switched in a manner similar to the first reference transistor.Type: GrantFiled: March 4, 2011Date of Patent: September 4, 2012Assignee: EPCOS AGInventor: Erwin Spits
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Publication number: 20120127767Abstract: The circuit includes an E-mode transistor with gate-source junction, a D-mode transistor with gate-source junction, a component generating a voltage drop between the source of the D-mode transistor and the drain of the E-mode transistor, and a connection between the drain of the E-mode transistor and the gate of the D-mode transistor. The gate of the E-mode transistor is provided for an input signal, and the drain of the E-mode transistor is provided for an output signal.Type: ApplicationFiled: June 15, 2010Publication date: May 24, 2012Applicant: EPCOS AGInventor: Erwin Spits
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Publication number: 20120112801Abstract: A current-limited differential entry stage compares an input signal to a reference voltage generated by a current-limited transistor or diode configuration. Current limiters comprise a D-mode feedback transistor having a gate-source junction. The D-mode transistor is not conducting between the source and the drain if a gate-source voltage is more negative than a negative threshold voltage, and conducting between the source and the drain, otherwise a feedback connection connects the source of the D-mode feedback transistor to its gate via a component that generates a voltage drop.Type: ApplicationFiled: June 21, 2010Publication date: May 10, 2012Applicant: EPCOS AGInventors: Erwin Spits, Léon C.M. van den Oever
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Publication number: 20120112793Abstract: A circuit includes E-mode transistors with gate-source junction, a D-mode transistor with gate-source junction. A component generates a voltage drop between the source of the D-mode transistor and the drain of an E-mode transistor provided as a signal output. A connection is made between this drain of the E-mode transistor and the gate of the D-mode transistor, and a signal input at the gates of the E-mode transistors.Type: ApplicationFiled: June 15, 2010Publication date: May 10, 2012Applicant: Epcos AGInventors: Erwin Spits, Léon C.M. Van den Oever
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Publication number: 20110210714Abstract: A circuit includes a supply voltage and a control current line including two resistors. A sink current line branches off from the control current line between the resistors. A current sink transistor has an emitter that is connected to the sink current line and a collector that is connected to ground via a first further resistor. At least one reference transistor has an emitter that is connected to its base, to the supply voltage via a second further resistor and to the base of the current sink transistor. The collector of the reference transistor is connected to ground or to an emitter of a further reference transistor, which is switched in a manner similar to the first reference transistor.Type: ApplicationFiled: March 4, 2011Publication date: September 1, 2011Applicant: EPCOS AGInventor: Erwin Spits