Patents by Inventor Jan Van Sinderen
Jan Van Sinderen 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: 20230107754Abstract: In accordance with a first aspect of the present disclosure, a system is provided for facilitating detecting an external object, the system comprising: at least one radar device configured to transmit one or more radar signals; a controller configured to control said radar device; wherein the controller is configured to cause the radar device to operate in a first mode in which the radar device transmits a first radar signal for determining one or more communication channel characteristics; wherein the controller is further configured to cause the radar device to operate in a second mode in which the radar device transmits a second radar signal, wherein one or more properties of the second radar signal are based on the communication channel characteristics determined when the radar device operates in the first mode. In accordance with a second aspect of the present disclosure, a corresponding method is conceived for facilitating detecting an external object.Type: ApplicationFiled: September 6, 2022Publication date: April 6, 2023Inventors: Stefan Tertinek, Jan van Sinderen
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Patent number: 11557910Abstract: A method for power management for applications having duty-cycled high peak supply currents includes charging a buffer capacitor with a first current supplied by a battery, wherein the first current is limited by a current limiter. A load is supplied with a second current supplied by the buffer capacitor, wherein the second current comprises a pulsed current. The current limiter is controlled with at least one of a plurality of sensor inputs to limit a capacity degradation of the battery.Type: GrantFiled: December 22, 2020Date of Patent: January 17, 2023Assignee: NXP B.V.Inventors: Jan van Sinderen, Salvatore Drago, Gerard Villar Pique, Esa Petri Tarvainen, Wolfgang Hoess
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Publication number: 20220200308Abstract: A method for power management for applications having duty-cycled high peak supply currents includes charging a buffer capacitor with a first current supplied by a battery, wherein the first current is limited by a current limiter. A load is supplied with a second current supplied by the buffer capacitor, wherein the second current comprises a pulsed current. The current limiter is controlled with at least one of a plurality of sensor inputs to limit a capacity degradation of the battery.Type: ApplicationFiled: December 22, 2020Publication date: June 23, 2022Inventors: Jan van Sinderen, Salvatore Drago, Gerard Villar Pique, Esa Petri Tarvainen, Wolfgang Hoess
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Patent number: 10447523Abstract: The disclosure relates to an IQ mismatch correction module for a radio receiver, the IQ mismatch correction module comprising: an input terminal configured to receive an input signal; an output terminal configured to provide a filtered output signal; a mismatch detection module comprising: one or more bandpass filters configured to receive, from the input terminal or output terminal, a bandpass input signal and to pass a plurality of sub-bands of the bandpass input signal to provide respective bandpass filtered signals; one or more amplitude and phase mismatch detectors configured to determine amplitude and phase mismatch coefficients based on the bandpass filtered signals from the plurality of sub-bands; a transformation unit configured to apply a transformation to the amplitude and phase mismatch coefficients to provide correction filter coefficients for the plurality of sub-bands; and a filter module configured to: receive the filter coefficients for the plurality of sub-bands from the mismatch detection mType: GrantFiled: June 9, 2017Date of Patent: October 15, 2019Assignee: NXP B.V.Inventors: Joerg Heinrich Walter Wenzel, Robert Rutten, Evert-Jan Pol, Jan van Sinderen, Tjeu van Ansem, Peter van de Haar
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Publication number: 20180013604Abstract: The disclosure relates to an IQ mismatch correction module for a radio receiver, the IQ mismatch correction module comprising: an input terminal configured to receive an input signal; an output terminal configured to provide a filtered output signal; a mismatch detection module comprising: one or more bandpass filters configured to receive, from the input terminal or output terminal, a bandpass input signal and to pass a plurality of sub-bands of the bandpass input signal to provide respective bandpass filtered signals; one or more amplitude and phase mismatch detectors configured to determine amplitude and phase mismatch coefficients based on the bandpass filtered signals from the plurality of sub-bands; a transformation unit configured to apply a transformation to the amplitude and phase mismatch coefficients to provide correction filter coefficients for the plurality of sub-bands; and a filter module configured to: receive the filter coefficients for the plurality of sub-bands from the mismatch detection mType: ApplicationFiled: June 9, 2017Publication date: January 11, 2018Inventors: Joerg Heinrich Walter Wenzel, Robert Rutten, Evert-Jan Pol, Jan van Sinderen, Tjeu van Ansem, Peter van de Haar
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Patent number: 9509290Abstract: A frequency converter, comprising a multi-phase local oscillator and a multi-phase mixer. The mixer comprises a plurality of mixer switches, each connected to a respective amplifier. The local oscillator is configured to provide a switching signal to each mixer switch, and comprises a plurality of inverters configured as a ring oscillator.Type: GrantFiled: May 4, 2015Date of Patent: November 29, 2016Assignee: NXP B.V.Inventors: Jan van Sinderen, Salvatore Drago
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Patent number: 9431962Abstract: An RF reception system and method uses IF quadrature mixing, in which there is further mixing and channel filtering in the digital domain, to isolate a frequency of interest. A coefficient estimator is used for generating a phase correction coefficient and an amplitude correction coefficient from filtered in-phase and quadrature desired signals and from filtered in-phase and quadrature image signals.Type: GrantFiled: January 2, 2015Date of Patent: August 30, 2016Assignee: NXP B.V.Inventors: Robert Rutten, Lucien Johannes Breems, Jan van Sinderen
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Patent number: 9413407Abstract: The invention relates to frequency conversion systems, in particular for use as up-converters or down-converters in radiofrequency (RF) receivers or transmitters, exemplary embodiments including a radiofrequency receiver including an RF signal input; a mixing module including a first plurality of IF amplifiers each connected to the RF signal input via a switch; a multi-phase local oscillator signal generator configured to provide a switching signal to each switch; and a summing module configured to receive output signals from each of the IF amplifiers and to provide a second plurality of output IF signals from a weighted sum of the IF amplifier output signals, wherein the second plurality is different to the first plurality.Type: GrantFiled: July 8, 2011Date of Patent: August 9, 2016Assignee: NXP B.V.Inventors: Jan van Sinderen, Johannes Hubertus Antonius Brekelmans, Frank Harald Erich Ho Chung Leong, Nenad Pavlovic
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Patent number: 9276535Abstract: A transconductance amplifier comprises a set of amplifier stages. The last stage of the amplifier is split with a certain ratio whereby one part is used to deliver output current and other part to deliver feedback current to the input.Type: GrantFiled: May 15, 2014Date of Patent: March 1, 2016Assignee: NXP B.V.Inventors: Jan van Sinderen, Johannes Brekelmans
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Patent number: 9225927Abstract: An automatic gain control (AGC) circuit based on a cascade of a step automatic gain control unit and a second automatic gain control unit connected to adjust their gain in a synchronized manner to result in a combined impulsive gain variation. Hereby it is possible, e.g. to use a step automatic gain control unit instead of a continuous automatic gain control unit in an RF part of a TV tuner without resulting in visual artifacts—this applies both for digital and analog TV tuners. According to a preferred embodiment, the synchronization between the two automatic gain control units may be achieved by the first automatic gain control unit generating a control signal upon gain adjustment, this control signal serving to speed up a loop bandwidth controlling gain change of the second automatic gain control unit. In another embodiment, the control signal generated by the first automatic gain control unit is used to control a gain step of the second automatic gain control unit.Type: GrantFiled: March 21, 2007Date of Patent: December 29, 2015Assignee: NXP, B.V.Inventors: Luca Lococo, Francois Pichon, Jan Van Sinderen
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Publication number: 20150349755Abstract: A frequency converter, comprising a multi-phase local oscillator and a multi-phase mixer. The mixer comprises a plurality of mixer switches, each connected to a respective amplifier. The local oscillator is configured to provide a switching signal to each mixer switch, and comprises a plurality of inverters configured as a ring oscillator.Type: ApplicationFiled: May 4, 2015Publication date: December 3, 2015Inventors: Jan van Sinderen, Salvatore Drago
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Publication number: 20150200628Abstract: An RF reception system and method uses IF quadrature mixing, in which there is further mixing and channel filtering in the digital domain, to isolate a frequency of interest. A coefficient estimator is used for generating a phase correction coefficient and an amplitude correction coefficient from filtered in-phase and quadrature desired signals and from filtered in-phase and quadrature image signals.Type: ApplicationFiled: January 2, 2015Publication date: July 16, 2015Inventors: Robert Rutten, Lucien Johannes Breems, Jan van Sinderen
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Patent number: 9082241Abstract: In accordance with one or more example embodiments, wireless communications are facilitated based on user-motion. A portable motion-sensing circuit, carried by a user, indicates that motion is sensed in response to detecting whether the user has been moving for a predetermined period of time. A communication circuit operates in active mode and inactive modes respectively consuming higher and lower power, permits or inhibits access authentication communications in the active and inactive modes, and operates in the active mode in response to the motion being sensed at the motion-sensing circuit.Type: GrantFiled: January 6, 2012Date of Patent: July 14, 2015Assignee: NXP B.V.Inventors: Frank Leong, Jan van Sinderen, William Redman-White
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Publication number: 20140340151Abstract: A transconductance amplifier comprises a set of amplifier stages. The last stage of the amplifier is split with a certain ratio whereby one part is used to deliver output current and other part to deliver feedback current to the input.Type: ApplicationFiled: May 15, 2014Publication date: November 20, 2014Applicant: NXP B.V.Inventors: Jan van Sinderen, Johannes Brekelmans
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Patent number: 8818308Abstract: A multi-tuner apparatus comprises a splitter (S) for received RF signals. The splitter has a splitter output (U) for connection to a plurality of tuners. To reduce signal degradation and dissipation the output impedance of the splitter output is substantially lower than the input impedance of each of the tuners.Type: GrantFiled: August 15, 2006Date of Patent: August 26, 2014Assignee: NXP, B.V.Inventors: Jan Van Sinderen, Francois Seneschal, Jacques Potier
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Patent number: 8686779Abstract: The invention concerns in general measurement of the transfer function of linear time invariant systems, more particular the calibration of such systems based on a measured transfer function. According to a first aspect the present invention an arrangement for measuring the transfer function of a linear time-invariant system is disclosed. According to a second aspect of the present invention the arrangement is implemented into a linear time-invariant circuitry having a transfer function representing the amplitude and phase characteristic of the circuitry, where by means of the arrangement for measuring the transfer function the transfer function can be optimized in accordance with certain criteria on-the-fly, i.e. in or before operation of the circuit. Finally, an effective and simple method for measuring of the transfer function of a linear time-invariant system together with the use or application of the method is shown.Type: GrantFiled: April 30, 2009Date of Patent: April 1, 2014Assignee: NXP, B.V.Inventors: Dennis Jeurissen, Gerben Willem De Jong, Jan Van Sinderen
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Patent number: 8660508Abstract: An electronic device comprising a passive harmonic-rejection mixer (400) and a calibration circuitry (425). The passive harmonic rejection mixer has an input (102) connected to several sub-mixer stages (402), and the sub-mixer stages are connected to a summing module (406, 408) for generating the output (104). Each sub-mixing stage comprises a gating module (414), an amplifier (416), and a weighting module (418), the gating module selectively passing the input signal or the input signal with inverted polarity under the control of control signals. The calibration circuitry (425) is adapted to input a reference signal (430) to the input of the mixer, receive an output signal (104) from the output of the mixer, and set the weights (K1, K2, K3, K4) of the weighting modules to make the output signal match an expected output signal.Type: GrantFiled: April 23, 2010Date of Patent: February 25, 2014Assignee: NXP, B.V.Inventors: Dennis Jeurissen, Gerben Willem de Jong, Jan van Sinderen, Johannes Hubertus Antonius Brekelmans
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Patent number: 8638174Abstract: The invention relates to a digital signal generator for providing one or more phases of a local oscillator signal for use in digital to analogue converters and harmonic rejection mixers. Embodiments disclosed include a local oscillator signal generator (200) for a mixer of a radiofrequency receiver, the signal generator (200) comprising a bit sequence generator (201) having a plurality of parallel output lines (203), a digital signal generator (202) having a serial output line (204) and a plurality of input lines connected to respective output lines (203) of the bit sequence generator (201) and a clock signal input line (205), wherein the digital signal generator (202) is configured to provide an output bit sequence on the serial output line (204) at a rate given by a clock signal provided on the clock signal input line (205) and a sequence given by a sequence of bits from the bit sequence generator (201) on the plurality of input lines (203).Type: GrantFiled: May 26, 2011Date of Patent: January 28, 2014Assignee: Integrated Device Technology inc.Inventors: Nenad Pavlovic, Johannes Hubertus Antonius Brekelmans, Jan van Sinderen
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Patent number: 8571134Abstract: The present application relates to at least one digitally controlled oscillator and a data modulation device. More particularly, the digital polar transmitter comprises at least one digitally controlled oscillator configured to generate at least one frequency. The digital polar transmitter comprises a data modulation device, wherein the data modulation device comprises at least one data input terminal, at least one output terminal, and at least one frequency input terminal, wherein the output terminal is connected to the digitally controlled oscillator. The digital polar transmitter comprises a phase measuring device configured to measure phase information from the output signal of the data modulation device for every frequency sample.Type: GrantFiled: August 24, 2009Date of Patent: October 29, 2013Assignee: NXP, B.V.Inventors: Nenad Pavlovic, Manel Collados, Xin He, Jan Van Sinderen
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Publication number: 20130176069Abstract: In accordance with one or more example embodiments, wireless communications are facilitated based on user-motion. A portable motion-sensing circuit, carried by a user, indicates that motion is sensed in response to detecting whether the user has been moving for a predetermined period of time. A communication circuit operates in active mode and inactive modes respectively consuming higher and lower power, permits or inhibits access authentication communications in the active and inactive modes, and operates in the active mode in response to the motion being sensed at the motion-sensing circuit.Type: ApplicationFiled: January 6, 2012Publication date: July 11, 2013Inventors: Frank Leong, Jan van Sinderen, William Redman-White