Patents by Inventor Hendrik J. Bergveld
Hendrik J. Bergveld 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: 8780142Abstract: An active matrix display device has a column driver circuit for providing pixel drive signals to columns of pixels, and comprising current source circuits. Each current source circuit has a supply switch (78) for controlling the time during which the current source supplies current to or drains current from the column. A mapping means (74) derives from a pixel drive level a digital value which represents a time period for the control of the supply switch (78) of each current source circuit. The mapping means (74) implements a single mapping function for use in providing the digital values for all current source circuits. Having a current source circuit for each column facilitates the application of inversion patterns. The conversion of pixel drive levels to values representing time is carried out in a shared manner, so that the required area is kept to a minimum.Type: GrantFiled: February 27, 2006Date of Patent: July 15, 2014Assignee: Innolux CorporationInventors: John Van Den Homberg, Hendrik J. Bergveld, Frans Schoofs
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Patent number: 8395914Abstract: The present invention relates to a configurable trench multi-capacitor device comprising a trench in a semiconductor substrate. The trench has a lateral extension exceeding 10 micrometer and a trench filling includes a number of at least four electrically conductive capacitor-electrode layers. A switching unit is provided that comprises a plurality of switching elements electrically interconnected between different capacitor-electrode layers of the trench filling. A control unit is connected with the switching unit and configured to generate and provide to the switching unit respective control signals for forming a respective one of a plurality of multi-capacitor configurations using the capacitor-electrode layers of the trench filling.Type: GrantFiled: May 8, 2008Date of Patent: March 12, 2013Assignee: NXP B.V.Inventors: Johan H. Klootwijk, Hendrik J. Bergveld, Freddy Roozeboom, Derk Reefman, Jaap Ruigrok
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Publication number: 20100117612Abstract: The present invention relates to a configurable trench multi-capacitor device comprising a trench in a semiconductor substrate. The trench has a lateral extension exceeding 10 micrometer and a trench filling includes a number of at least four electrically conductive capacitor-electrode layers. A switching unit is provided that comprises a plurality of switching elements electrically interconnected between different capacitor-electrode layers of the trench filling. A control unit is connected with the switching unit and configured to generate and provide to the switching unit respective control signals for forming a respective one of a plurality of multi-capacitor configurations using the capacitor-electrode layers of the trench filling.Type: ApplicationFiled: May 8, 2008Publication date: May 13, 2010Applicant: NXP B.V.Inventors: Johan H. Klootwijk, Hendrik J. Bergveld, Freddy Roozeboom, Derk Reefman, Jaap Ruigrok
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Patent number: 7671618Abstract: An integrated circuit (IC) comprises a plurality of analog stages (10a-c), each of the analog stages being conductively coupled to a power supply (20; 20a-c), and being conductively coupled to each other by a signal path (12); and a test arrangement for testing the plurality of analog stages, the test arrangement comprising input means such as an analog bus (40) coupled to a signal path input of each analog stage from the plurality of analog stages, output means such as a further analog bus (50) for communicating a test result to an output of the integrated circuit, switching means such as a plurality of switches (36) in the biasing infrastructure of the IC for selectively disabling an analog stage, and control means such a shift register (60) for controlling the switching means. Consequently, the analog stages of the IC can be tested and debugged in isolation without the need for switches in the signal path through the cores.Type: GrantFiled: October 20, 2006Date of Patent: March 2, 2010Assignee: NXP B.V.Inventors: Amir Zjajo, Hendrik J Bergveld, Rodger F Schuttert, Jose De Jesus Pineda De Gyvez
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Publication number: 20090134904Abstract: An integrated circuit (IC) comprises a plurality of analog stages (10a-c), each of the analog stages being conductively coupled to a power supply (20; 20a-c), and being conductively coupled to each other by a signal path (12); and a test arrangement for testing the plurality of analog stages, the test arrangement comprising input means such as an analog bus (40) coupled to a signal path input of each analog stage from the plurality of analog stages, output means such as a further analog bus (50) for communicating a test result to an output of the integrated circuit, switching means such as a plurality of switches (36) in the biasing infrastructure of the IC for selectively disabling an analog stage, and control means such a shift register (60) for controlling the switching means. Consequently, the analog stages of the IC can be tested and debugged in isolation without the need for switches in the signal path through the cores.Type: ApplicationFiled: October 20, 2006Publication date: May 28, 2009Applicant: NXP B.V.Inventors: Amir Zjajo, Hendrik J. Bergveld, Rodger F. Schuttert, Jose De Jesus Pineda De Gyvez
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Publication number: 20080316163Abstract: An active matrix display device has a column driver circuit for providing pixel drive signals to columns of pixels, and comprising current source circuits. Each current source circuit has a supply switch (78) for controlling the time during which the current source supplies current to or drains current from the column. A mapping means (74) derives from a pixel drive level a digital value which represents a time period for the control of the supply switch (78) of each current source circuit. The mapping means (74) implements a single mapping function for use in providing the digital values for all current source circuits. Having a current source circuit for each column facilitates the application of inversion patterns. The conversion of pixel drive levels to values representing time is carried out in a shared manner, so that the required area is kept to a minimum.Type: ApplicationFiled: February 27, 2006Publication date: December 25, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: John Van Den Homberg, Hendrik J. Bergveld, Frans Schoofs
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Patent number: 7321750Abstract: A communication system such as a telephone system has at least a base station and a communication device to communicate with the base station, the communication device comprises an RF power amplifier having an RF output for coupling to an antenna and an RF output power control input, a power supply having a power supply terminal, a control input and a supply output coupled to the RF output power control input for controlling an RF output power on the RF output in dependence on a signal on the control input of the power supply, a data receiver means for coupling to the antenna, the data receiver means having a data output for providing data received from the base station which represents information about said RF output power, and a table means containing a listing of possible power supply control input values related to possible RF output power values, the table means having a table selection input coupled to the data output of the data receiver means and a table output coupled to the control input of the powType: GrantFiled: April 24, 2001Date of Patent: January 22, 2008Assignee: NXP B.V.Inventors: Hendrik J. Bergveld, Franciscus A. C. M. Schoofs
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Patent number: 6420851Abstract: A method is described for determining the charge condition of a battery (1), wherein the electromotive force (VEMF) is derived from measurements of the terminal voltage in a loaded condition, and the charge condition (Q) is determined with the aid of a pre-calculated relationship between (VEMF) and the charge condition (Q) on the basis of the (VEMF) thus calculated.Type: GrantFiled: April 4, 2000Date of Patent: July 16, 2002Assignee: Koninklijke Philips Electronics N.V.Inventors: Franciscus A. C. M. Schoofs, Wanda S. Kruijt, Robert E. F. Einerhand, Saskia A. C. Hanneman, Hendrik J. Bergveld
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Patent number: 6298222Abstract: A communication system such as a telephone system has at least a base station and a communication device to communicate with the base station, the communication device comprises an RF power amplifier having an RF output for coupling to an antenna and an RF output power control input, a power supply having a power supply terminal, a control input and a supply output coupled to the RF output power control input for controlling an RF output power on the RF output in dependence on a signal on the control input of the power supply, a data receiver means for coupling to the antenna, the data receiver means having a data output for providing data received from the base station which represents information about said RF output power, and a table means containing a listing of possible power supply control input values related to possible RF output power values, the table means having a table selection input coupled to the data output of the data receiver means and a table output coupled to the control input of the powType: GrantFiled: December 8, 1998Date of Patent: October 2, 2001Assignee: U.S. Philips CorporationInventors: Hendrik J. Bergveld, Franciscus A. C. M. Schoofs
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Publication number: 20010014613Abstract: A communication system such as a telephone system has at least a base station and a communication device to communicate with the base station, the communication device comprises an RF power amplifier having an RF output for coupling to an antenna and an RF output power control input, a power supply having a power supply terminal, a control input and a supply output coupled to the RF output power control input for controlling an RF output power on the RF output in dependence on a signal on the control input of the power supply, a data receiver means for coupling to the antenna, the data receiver means having a data output for providing data received from the base station which represents information about said RF output power, and a table means containing a listing of possible power supply control input values related to possible RF output power values, the table means having a table selection input coupled to the data output of the data receiver means and a table output coupled to the control input of the powType: ApplicationFiled: April 24, 2001Publication date: August 16, 2001Applicant: U.S. Philips CorporationInventors: Hendrik J. Bergveld, Franciscus A.C.M. Schoofs
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Patent number: 6016047Abstract: A battery management system 100 comprises input means 102 for receiving input signals, such as current or voltage, which represent a physical quantity of a battery. In operation, processing means 105 of the battery management system 100 calculate a physical quantity of the battery, such as the State of Charge, based on the input signals by using an electrochemical/physical model of the battery. The model includes a representation of a main electrochemical storage reaction, whose behaviour is calculated in dependence on a battery temperature. The processing means 105 calculates the battery temperature based on a temperature model of a temperature development in the battery. The battery management system 100 comprises output means 104 for outputting an output signal which is derived from a state of the electrochemical storage reaction. The battery management system 100 is, advantageously, used in a smart battery 10 or a battery charger/discharger 200.Type: GrantFiled: November 12, 1997Date of Patent: January 18, 2000Assignee: U.S. Philips CorporationInventors: Petrus H.L. Notten, Hendrik J. Bergveld, Wanda S. Kruijt