Patents by Inventor Arie Koppelaar
Arie Koppelaar 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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Patent number: 11036657Abstract: A writing-block for writing data to a memory-buffer, wherein the memory-buffer comprises an ordered sequence of elements and the writing-block is configured to: receive an input-data-stream; and write the input-data-stream to the memory-buffer in a successive manner from a first-element of the ordered sequence to a predetermined-element of the ordered sequence. Following writing to the predetermined-element the writing-block is configured to continue to write the input-data-stream to the memory-buffer in a successive manner restarting at the first-element. In response to writing the predetermined-element, the writing-block is configured to also continue to write the input-data-stream to the memory-buffer in a successive manner from an element immediately following the predetermined element until a second predetermined-element of the memory-buffer.Type: GrantFiled: May 2, 2019Date of Patent: June 15, 2021Assignee: NXP B.V.Inventors: Marinus van Splunter, Arie Koppelaar, Artur Burchard
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Patent number: 10985805Abstract: A first-transceiver for use in an antenna diversity scheme. The first-transceiver comprises a first-time/clock-generation-unit; a first-receiver; and a first-transmitter. The first-receiver is configured to receive a wireless second-alignment-signal from a second-transceiver with a second-time/clock-generation-unit. The wireless second-alignment-signal is representative of a state of the second-time/clock-generation-unit. The first-transceiver is configured to set the first-time/clock-generation-unit, based on the wireless second-alignment-signal, to reduce an alignment-error between the first-time/clock-generation-unit and the second-time/clock-generation-unit. The first-transmitter is configured to transmit a wireless first-transmission-signal, in accordance with the first-time/clock-generation-unit, as part of the antenna diversity scheme. The first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver.Type: GrantFiled: May 1, 2019Date of Patent: April 20, 2021Assignee: NXP B.V.Inventors: Lars Van Meurs, Alessio Filippi, Arie Koppelaar, Marinus Van Splunter
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Patent number: 10608718Abstract: A first-transceiver system for use in an antenna diversity scheme. The first-transceiver system comprising: a first-receiver; a first-time/clock-generation-unit; a first-transmitter; and a timing-controller. The first-receiver is configured to receive a wireless first-common-signal from a third-party-transmitter, wherein the first-common-signal is representative of a common-signal transmitted by the third-party-transmitter. The timing-controller is configured to: receive signaling representative of the first-common-signal; receive signaling representative of a wireless second-common-signal as received at a second-transceiver, the wireless second-common-signal being representative of the common-signal; and generate a timing-signal based on the first-common-signal and the second-common-signal.Type: GrantFiled: May 1, 2019Date of Patent: March 31, 2020Assignee: NXP B.V.Inventors: Lars van Meurs, Alessio Filippi, Arie Koppelaar, Marinus van Splunter
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Patent number: 10574318Abstract: A first-transceiver system for use in an antenna diversity scheme. The first-transceiver system comprising: a first-receiver; a first-time/clock-generation-unit; a first-transmitter; and a timing-controller. The first-receiver is configured to receive a wireless first-common-signal from a third-party-transmitter, wherein the first-common-signal is representative of a common-signal transmitted by the third-party-transmitter. The timing-controller is configured to: receive signaling representative of the first-common-signal; receive signaling representative of a wireless second-common-signal as received at a second-transceiver, the wireless second-common-signal being representative of the common-signal; and generate a timing-signal based on the first-common-signal and the second-common-signal.Type: GrantFiled: May 1, 2019Date of Patent: February 25, 2020Assignee: NXP B.V.Inventors: Lars van Meurs, Alessio Filippi, Arie Koppelaar, Marinus van Splunter
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Publication number: 20190356366Abstract: A first-transceiver system for use in an antenna diversity scheme. The first-transceiver system comprising: a first-receiver; a first-time/clock-generation-unit; a first-transmitter; and a timing-controller. The first-receiver is configured to receive a wireless first-common-signal from a third-party-transmitter, wherein the first-common-signal is representative of a common-signal transmitted by the third-party-transmitter. The timing-controller is configured to: receive signaling representative of the first-common-signal; receive signaling representative of a wireless second-common-signal as received at a second-transceiver, the wireless second-common-signal being representative of the common-signal; and generate a timing-signal based on the first-common-signal and the second-common-signal.Type: ApplicationFiled: May 1, 2019Publication date: November 21, 2019Inventors: Lars van Meurs, Alessio Filippi, Arie Koppelaar, Marinus van Splunter
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Publication number: 20190356360Abstract: A first-transceiver for use in an antenna diversity scheme. The first-transceiver comprises a first-time/clock-generation-unit; a first-receiver; and a first-transmitter. The first-receiver is configured to receive a wireless second-alignment-signal from a second-transceiver with a second-time/clock-generation-unit. The wireless second-alignment-signal is representative of a state of the second-time/clock-generation-unit. The first-transceiver is configured to set the first-time/clock-generation-unit, based on the wireless second-alignment-signal, to reduce an alignment-error between the first-time/clock-generation-unit and the second-time/clock-generation-unit. The first-transmitter is configured to transmit a wireless first-transmission-signal, in accordance with the first-time/clock-generation-unit, as part of the antenna diversity scheme. The first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver.Type: ApplicationFiled: May 1, 2019Publication date: November 21, 2019Inventors: Lars van Meurs, Alessio FILIPPI, Arie KOPPELAAR, Marinus VAN SPLUNTER
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Publication number: 20190347221Abstract: A writing-block for writing data to a memory-buffer, wherein the memory-buffer comprises an ordered sequence of elements and the writing-block is configured to: receive an input-data-stream; and write the input-data-stream to the memory-buffer in a successive manner from a first-element of the ordered sequence to a predetermined-element of the ordered sequence. Following writing to the predetermined-element the writing-block is configured to continue to write the input-data-stream to the memory-buffer in a successive manner restarting at the first-element. In response to writing the predetermined-element, the writing-block is configured to also continue to write the input-data-stream to the memory-buffer in a successive manner from an element immediately following the predetermined element until a second predetermined-element of the memory-buffer.Type: ApplicationFiled: May 2, 2019Publication date: November 14, 2019Inventors: Marinus van Splunter, Arie Koppelaar, Artur Burchard
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Patent number: 10237056Abstract: Various exemplary embodiments relate to a method of communicating by a transmitter. Embodiments of the method may include creating information to be used by a receiver to define a spreading sequence for a subsequent packet, coding the information into a current communications packet, and transmitting the current communications packet.Type: GrantFiled: April 10, 2015Date of Patent: March 19, 2019Assignee: NXP B.V.Inventors: Andries Hekstra, Stefan Drude, Frank Leong, Arie Koppelaar
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Patent number: 10158390Abstract: According to the present disclosure, there is provided methods of processing a signal using quantized symbols. More particularly, in one example, the method comprises the steps of processing a signal (206), said method comprising the steps of: receiving a signal (206) comprising a plurality of raw symbols, each raw symbol having a plurality of bits and being conveyed in a channel; estimating a channel state information value (206) of the channel used to convey each raw symbol to generate a corresponding plurality of channel state information values; quantizing the plurality of raw symbols based on their channel state information values to generate a sequence of quantized symbols (214); and quantizing the channel state information values to generate a sequence of quantized channel state values (216).Type: GrantFiled: April 27, 2016Date of Patent: December 18, 2018Assignee: NXP B.V.Inventors: Andries Hekstra, Alessio Filippi, Semih Serbetli, Arie Koppelaar
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Patent number: 9916708Abstract: According to a first aspect of the present disclosure, a signal processing system is provided, comprising: a receiving unit configured to receive at least one signal that comprises a plurality of multipath components; a verification unit configured to correlate at least one multipath component under test with a reference signal derived from one or more of said plurality of multipath components. According to a second aspect of the present disclosure, a corresponding signal processing method is conceived. According to a third aspect of the present disclosure, a corresponding computer program is provided.Type: GrantFiled: May 25, 2017Date of Patent: March 13, 2018Assignee: NXP B.V.Inventors: Arie Koppelaar, Frank Leong, Stefan Drude
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Publication number: 20170358158Abstract: According to a first aspect of the present disclosure, a signal processing system is provided, comprising: a receiving unit configured to receive at least one signal that comprises a plurality of multipath components; a verification unit configured to correlate at least one multipath component under test with a reference signal derived from one or more of said plurality of multipath components. According to a second aspect of the present disclosure, a corresponding signal processing method is conceived. According to a third aspect of the present disclosure, a corresponding computer program is provided.Type: ApplicationFiled: May 25, 2017Publication date: December 14, 2017Inventors: Arie Koppelaar, Frank Leong, Stefan Drude
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Patent number: 9775034Abstract: Distance-based authentication is provided for mitigating undesirable interaction and/or attacks upon ranging systems, such as those involving vehicle entry or secure payment. As may be implemented in accordance with one or more embodiments, a leading edge of one or more pulses in a waveform of a signal is obscured as part of distance-based authentication. For instance, noise may be generated via a noise modulation circuit and combined with some or all of a leading edge of a pulse. Distance-based authentication is provided by transmitting a signal with a waveform having the obscured portion of the leading edge, which operates to mitigate detection of the polarity of the leading edge or otherwise of the leading edge itself.Type: GrantFiled: February 6, 2015Date of Patent: September 26, 2017Assignee: NXP B.V.Inventors: Andries Hekstra, Arie Koppelaar, Stefan Drude, Frank Leong
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Publication number: 20160344435Abstract: According to the present disclosure, there is provided methods of processing a signal using quantized symbols. More particularly, in one example, the method comprises the steps of processing a signal (206), said method comprising the steps of: receiving a signal (206) comprising a plurality of raw symbols, each raw symbol having a plurality of bits and being conveyed in a channel; estimating a channel state information value (206) of the channel used to convey each raw symbol to generate a corresponding plurality of channel state information values; quantizing the plurality of raw symbols based on their channel state information values to generate a sequence of quantized symbols (214); and quantizing the channel state information values to generate a sequence of quantized channel state values (216).Type: ApplicationFiled: April 27, 2016Publication date: November 24, 2016Inventors: Andries Hekstra, Alessio Filippi, Semih Serbetli, Arie Koppelaar
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Patent number: 9485609Abstract: Using a clock circuit, a clock signal is generated at a base frequency. A frequency adjustment circuit selects, based upon a frequency offset value, a particular frequency adjustment value from a plurality of frequency adjustment values. An adjusted clock signal is provided that has a frequency corresponding to the base frequency as modified by the particular frequency adjustment value. Wireless communication signals are received at a wireless communication circuit. From the communication signals, a set of received wireless communication pulses are identified that have a pulse repetition frequency that corresponds to the adjusted clock signal. A distance ranging protocol is applied, using a processing circuit, to the identified set of received communication pulses.Type: GrantFiled: February 6, 2015Date of Patent: November 1, 2016Assignee: NXP B.V.Inventors: Andries Hekstra, Arie Koppelaar, Stefan Drude, Frank Leong
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Patent number: 9479371Abstract: Various exemplary embodiments relate to a wireless communications device and related method and machine-readable storage medium including: at least one antenna; a transmission circuit to transmit data via the at least one antenna and a wireless communications medium according to any of a plurality of modulation schemes; a reception circuit to receive data via the at least one antenna; an application controller to generate a series of messages having a message type and associated with an application; and a message scheduler to provide modulation settings to the transmission circuit for respective messages of the series to be transmitted according to different modulation schemes of the plurality of modulation schemes, wherein modulation schemes are chosen for transmission based on a modulation scheme pattern, whereby a first message is transmitted according to a first modulation scheme and a second message is transmitted according to a second modulation scheme.Type: GrantFiled: July 22, 2014Date of Patent: October 25, 2016Assignee: NXP B.V.Inventors: Hong Li, Arie Koppelaar, Ahmet Ozgur
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Publication number: 20160302074Abstract: Various exemplary embodiments relate to a method of communicating by a transmitter. Embodiments of the method may include creating information to be used by a receiver to define a spreading sequence for a subsequent packet, coding the information into a current communications packet, and transmitting the current communications packet.Type: ApplicationFiled: April 10, 2015Publication date: October 13, 2016Inventors: Andries Hekstra, Stefan Drude, Frank Leong, Arie Koppelaar
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Publication number: 20160234684Abstract: Distance-based authentication is provided for mitigating undesirable interaction and/or attacks upon ranging systems, such as those involving vehicle entry or secure payment. As may be implemented in accordance with one or more embodiments, a leading edge of one or more pulses in a waveform of a signal is obscured as part of distance-based authentication. For instance, noise may be generated via a noise modulation circuit and combined with some or all of a leading edge of a pulse. Distance-based authentication is provided by transmitting a signal with a waveform having the obscured portion of the leading edge, which operates to mitigate detection of the polarity of the leading edge or otherwise of the leading edge itself.Type: ApplicationFiled: February 6, 2015Publication date: August 11, 2016Inventors: Andries Hekstra, Arie Koppelaar, Stefan Drude, Frank Leong
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Publication number: 20160234008Abstract: Using a clock circuit, a clock signal is generated at a base frequency. A frequency adjustment circuit selects, based upon a frequency offset value, a particular frequency adjustment value from a plurality of frequency adjustment values. An adjusted clock signal is provided that has a frequency corresponding to the base frequency as modified by the particular frequency adjustment value. Wireless communication signals are received at a wireless communication circuit. From the communication signals, a set of received wireless communication pulses are identified that have a pulse repetition frequency that corresponds to the adjusted clock signal. A distance ranging protocol is applied, using a processing circuit, to the identified set of received communication pulses.Type: ApplicationFiled: February 6, 2015Publication date: August 11, 2016Inventors: Andries Hekstra, Arie Koppelaar, Stefan Drude, Frank Leong
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Patent number: 9374215Abstract: Aspects of the present disclosure provide communications between local and remote devices having low-frequency (LF) and high-frequency (HF) circuits. As may be implemented in accordance with one or more embodiments, the local device transmits an LF signal to the remote device, which synchronizes its clock based on the LF signal. Another LF signal is communicated from the local device to the remote device using a reduced quality factor, which can be implemented to facilitate synchronization. The clock is resynchronized based on the second LF signal and used to transmit an HF signal with a time delay. The local device synchronizes its clock based on the HF signal, and transmits another HF signal to the remote device using the clock and another time delay. The remote device re-synchronizes its clock based on the second HF signal while accounting for a trip time for communicating the first and/or second HF signals.Type: GrantFiled: August 25, 2014Date of Patent: June 21, 2016Assignee: NXP B.V.Inventors: Frank Leong, Andries Hekstra, Arie Koppelaar, Stefan Drude
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Patent number: 9300353Abstract: Various exemplary embodiments relate to a device for performing a method of communication transmission. The device may include a memory; a processor configured to: determine a spreading code with low sidelobe levels in its autocorrelation sequence to be used; create a Start of Frame Delimiter (SOFD) for a packet including the spreading code and a cyclic prefix, wherein the cyclic prefix is a portion of the spreading code; and transmit the packet with the SOFD.Type: GrantFiled: April 10, 2015Date of Patent: March 29, 2016Assignee: NXP B.V.Inventors: Andries Hekstra, Stefan Drude, Frank Leong, Arie Koppelaar