Patents by Inventor Jan-Paulus Freerk Huijser
Jan-Paulus Freerk Huijser 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: 10551973Abstract: A method of controlling a mobile device is described, the method comprising: receiving a time varying current or voltage of a signal generated on the terminals of an acoustic transducer of the mobile device, the time varying current or voltage being generated in response to a tapping and/or sliding motion on a surface of the mobile device performed by a user; comparing the time varying signal characteristics with a set of predetermined signal characteristics; and generating at least one user command in dependence of the comparison. The mobile device may reliably detect complex user commands using an acoustic transducer.Type: GrantFiled: August 12, 2015Date of Patent: February 4, 2020Assignee: NXP B.V.Inventors: Jan Paulus Freerk Huijser, Deheng Liu, Min Li, Shawn William Scarlett, Jose Manuel Gil-Cacho Lorenzo
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Publication number: 20180246591Abstract: A method of controlling a mobile device is described, the method comprising: receiving a time varying current or voltage of a signal generated on the terminals of an acoustic transducer of the mobile device, the time varying current or voltage being generated in response to a tapping and/or sliding motion on a surface of the mobile device performed by a user; comparing the time varying signal characteristics with a set of predetermined signal characteristics; and generating at least one user command in dependence of the comparison. The mobile device may reliably detect complex user commands using an acoustic transducer.Type: ApplicationFiled: August 12, 2015Publication date: August 30, 2018Inventors: JAN PAULUS FREERK HUIJSER, DEHENG LIU, MIN LI, SHAWN WILLIAM SCARLETT, JOSE MANUEL GIL-CACHO LORENZO
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Patent number: 9924287Abstract: A circuit and method for determining an ambient temperature for an electronic device having a loudspeaker are described. An amplifier drives the loudspeaker and first circuitry is configure to determine an overall temperature of the loudspeaker or the amplifier. Second circuitry is configured to determine a change in temperature of the loudspeaker or the amplifier resulting from power dissipated in the loudspeaker or the amplifier. Third circuitry is configured to subtract a signal representative of the change in temperature from a signal representative of the overall temperature and output a signal representative of the ambient temperature for the electronic device.Type: GrantFiled: July 14, 2016Date of Patent: March 20, 2018Assignee: NXP B.V.Inventors: Christophe Macours, Jan Paulus Freerk Huijser, Shawn Scarlett
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Patent number: 9628117Abstract: Mobile devices such as mobile phones include amplifiers for example audio and RF amplifiers which may consume a significant amount of the available power supplied by a battery. An amplifying system 100 for a mobile device is described the amplifying system comprising a current monitor 12 arranged between a first supply node and a second supply node and operable to monitor a current flow between the first and second supply nodes and to output a monitored current value; a peak current limiter 14 configured to limit an amplifier current to an amplifier to not exceed a maximum peak current value and coupled to a one of the first supply node and the second supply node; a controller coupled to the current monitor output and configured to control the peak current limiter. The amplifying system can dynamically manage the peak current available to the amplifier dependent on the load current being supplied by a battery.Type: GrantFiled: September 14, 2015Date of Patent: April 18, 2017Assignee: NXP B.V.Inventor: Jan Paulus Freerk Huijser
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Patent number: 9608470Abstract: Various embodiments relate to a method, machine-readable medium, and a system for preventing demagnetization of a magnetically sensitive object comprising detecting, by a first identification sensor at a wireless charging transceiver, a foreign object; determining, by a processor using information from the first identification sensor, whether the foreign object is magnetically sensitive; and responsive to a determination that the foreign object is magnetically sensitive, preventing the wireless charging transceiver from operating.Type: GrantFiled: November 27, 2013Date of Patent: March 28, 2017Assignee: NXP B.V.Inventor: Jan Paulus Freerk Huijser
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Publication number: 20170026767Abstract: A circuit and method for determining an ambient temperature for an electronic device having a loudspeaker are described. An amplifier drives the loudspeaker and first circuitry is configure to determine an overall temperature of the loudspeaker or the amplifier. Second circuitry is configured to determine a change in temperature of the loudspeaker or the amplifier resulting from power dissipated in the loudspeaker or the amplifier. Third circuitry is configured to subtract a signal representative of the change in temperature from a signal representative of the overall temperature and output a signal representative of the ambient temperature for the electronic device.Type: ApplicationFiled: July 14, 2016Publication date: January 26, 2017Inventors: Christophe Macours, Jan Paulus Freerk Huijser, Shawn Scarlett
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Publication number: 20160099730Abstract: Mobile devices such as mobile phones include amplifiers for example audio and RF amplifiers which may consume a significant amount of the available power supplied by a battery. An amplifying system 100 for a mobile device is described the amplifying system comprising a current monitor 12 arranged between a first supply node and a second supply node and operable to monitor a current flow between the first and second supply nodes and to output a monitored current value; a peak current limiter 14 configured to limit an amplifier current to an amplifier to not exceed a maximum peak current value and coupled to a one of the first supply node and the second supply node; a controller coupled to the current monitor output and configured to control the peak current limiter. The amplifying system can dynamically manage the peak current available to the amplifier dependent on the load current being supplied by a battery.Type: ApplicationFiled: September 14, 2015Publication date: April 7, 2016Inventor: Jan Paulus Freerk Huijser
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Patent number: 8817995Abstract: A method of controlling a loudspeaker of an electronic device provides voice coil temperature protection. When a power supply for the electronic device is first activated, a binding step is performed in which the loudspeaker impedance is determined and a temperature (such as ambient temperature) is accurately measured. These binding step measurements are used during subsequent use of the loudspeaker, to make the temperature measurements (based on voice coil impedance) as accurate as possible.Type: GrantFiled: June 15, 2011Date of Patent: August 26, 2014Assignee: NXP B.V.Inventors: Jan-Paulus Freerk Huijser, Johan Somberg
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Patent number: 8478356Abstract: An audio amplifier (3) for a mobile telephone (1) is disclosed. The audio amplifier (3) comprises first and second output stages (11, 12), each for coupling to a respective one of first and second loudspeakers (4, 5), and switching circuitry (10) adapted to respond to a switching signal by switching an output signal from a common input stage (7, 8, 9) to the first output stage (11) when the switching signal is in a first state and to the second output stage (12) when the switching signal is in a second state.Type: GrantFiled: October 27, 2011Date of Patent: July 2, 2013Assignee: NXP B.V.Inventor: Jan Paulus Freerk Huijser
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Publication number: 20120108300Abstract: An audio amplifier (3) for a mobile telephone (1) is disclosed. The audio amplifier (3) comprises first and second output stages (11, 12), each for coupling to a respective one of first and second loudspeakers (4, 5), and switching circuitry (10) adapted to respond to a switching signal by switching an output signal from a common input stage (7, 8, 9) to the first output stage (11) when the switching signal is in a first state and to the second output stage (12) when the switching signal is in a second state.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicant: NXP B.V.Inventor: Jan Paulus Freerk Huijser
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Publication number: 20120020488Abstract: A method of controlling a loudspeaker of an electronic device provides voice coil temperature protection. When a power supply for the electronic device is first activated, a binding step is performed in which the loudspeaker impedance is determined and a temperature (such as ambient temperature) is accurately measured. These binding step measurements are used during subsequent use of the loudspeaker, to make the temperature measurements (based on voice coil impedance) as accurate as possible.Type: ApplicationFiled: June 15, 2011Publication date: January 26, 2012Applicant: NXP B.V.Inventors: Jan-Paulus Freerk Huijser, Johan Somberg