Patents by Inventor Derk Visser
Derk Visser 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: 8240301Abstract: A dispensing device for dispensing a number of doses of medication to a patient, comprising a dispensing mechanism for dispensing the medication by actuation of the dispensing mechanism from a non-dispensing position to a dispensing position, a dose counter for counting the number of doses dispensed by said device, a first battery-less arrangement for providing power to said dose counter in response to the actuation of said dispensing mechanism, and an electronic display for displaying a dose indication, characterised in that the device includes a second battery-less arrangement for providing power to said electronic display when said dispensing mechanism is in said non-dispensing position.Type: GrantFiled: May 24, 2007Date of Patent: August 14, 2012Assignee: Glaxo Group LimitedInventors: Jerome Spaargaren, Derk Visser, Paul Kenneth Rand, Paul John Turner
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Patent number: 7929394Abstract: An information storage system is described which comprises a reading device (6) and an optical record carrier (5) having at least two information planes (1, 2, 3). The radiation from the record carrier is converted in a detection system (15) into a detection signal (16) which is applied to a detection circuit (17). In order that this circuit can derive the read information from the detection signal in a reliable manner, the interference signals generated by the information planes which are not to be read should comply with a requirement, referred to as the interference requirement, which is characteristic of the detection circuit. Values for the parameters of the record carrier, such as the thickness of the layers between the information planes and the reflection and transmission coefficients of the information planes then follow from this interference requirement.Type: GrantFiled: November 18, 1999Date of Patent: April 19, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Antonius H. M. Holtslag, Derk Visser
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Patent number: 7616737Abstract: A device (100; 200; 300; 400) comprising a sealed cavity (210) containing n volumes of fluids (80, 87; 220, 230; 320, 332; 420, 422, 430, 432) is described, where n is an integer and n?2. Each volume of fluid is substantially immiscible with every contiguous volume of fluid. The cavity is defined by an interior surface divided into n continuous areas (60, 170; 260, 270; 360, 362, 370; 460, 462, 470, 472), each continuous area corresponding to and being in contact with a respective one of the volumes of fluid. The wettability of each area is such that each volume of fluid preferentially adheres to the corresponding continuous area rather than any one of the continuous areas adjacent to the corresponding area.Type: GrantFiled: February 19, 2004Date of Patent: November 10, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Stein Kuiper, Derk Visser
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Publication number: 20090151721Abstract: A dispensing device for dispensing a number of doses of medication to a patient, comprising a dispensing mechanism for dispensing the medication by actuation of the dispensing mechanism from a non-dispensing position to a dispensing position, a dose counter for counting the number of doses dispensed by said device, a first battery-less arrangement for providing power to said dose counter in response to the actuation of said dispensing mechanism, and an electronic display for displaying a dose indication, characterised in that the device includes a second battery-less arrangement for providing power to said electronic display when said dispensing mechanism is in said non-dispensing position.Type: ApplicationFiled: May 24, 2007Publication date: June 18, 2009Inventors: Jerome Spaargaren, Derk Visser, Paul Kenneth Rand, Paul John Turner
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Publication number: 20080284734Abstract: Apparatus and method for generating a distinct “click” signal from a input device to a computer (541) or other device. The click signal is analogous to a right or left click of a conventional computer mouse. The click signal may be generated from an optical sensor unit by lifting and putting back a finger or other object from a window (112) of the optical sensor unit (500) and by simultaneously pressing a key (537) of the computer keyboard (532).Type: ApplicationFiled: January 12, 2005Publication date: November 20, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONIC, N.V.Inventor: Derk Visser
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Patent number: 7292515Abstract: An optical information storage system has a multi-recording-layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is determined by the maximum spherical aberration permissible for the system. The number of layers in the stack is determined by the minimum distance between layers, which depends on the crosstalk in the error signals due to currently unscanned layers.Type: GrantFiled: January 21, 2003Date of Patent: November 6, 2007Assignee: Koninklijke Philips Electronics N.V.Inventors: Antonius H. M. Holtslag, Derk Visser, Peter Coops, Jacobus P. J. Heemskerk
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Publication number: 20060245092Abstract: A device (100; 200; 300; 400) comprising a sealed cavity (210) containing n volumes of fluids (80, 87; 220, 230; 320, 332; 420, 422, 430, 432) is described, where n is an integer and n?2. Each volume of fluid is substantially immiscible with every contiguous volume of fluid. The cavity is defined by an interior surface divided into n continuous areas (60, 170; 260, 270; 360, 362, 370; 460, 462, 470, 472), each continuous area corresponding to and being in contact with a respective one of the volumes of fluid. The wettability of each area is such that each volume of fluid preferentially adheres to the corresponding continuous area rather than any one of the continuous areas adjacent to the corresponding area.Type: ApplicationFiled: February 19, 2004Publication date: November 2, 2006Applicant: Koninklijke Philips Electronics N.V.Inventors: Stein Kuiper, Derk Visser
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Publication number: 20030133391Abstract: An optical information storage system has a multi-recording-layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is determined by the maximum spherical aberration permissible for the system. The number of layers in the stack is determined by the minimum distance between layers, which depends on the crosstalk in the error signals due to currently unscanned layers.Type: ApplicationFiled: January 21, 2003Publication date: July 17, 2003Applicant: Koninklijke Philips ElectronicsInventors: Antonius H.M. Holtslag, Derk Visser, Peter Coops, Jacobus P.J. Heemskerk
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Patent number: 6538978Abstract: An optical information storage system has a multi-recording-layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is determined by the maximum spherical aberration permissible for the system. The number of layers in the stack is determined by the minimum distance between layers, which depends on the crosstalk in the error signals due to currently unscanned layers.Type: GrantFiled: May 21, 1997Date of Patent: March 25, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Antonius H. M. Holtslag, Derk Visser, Peter Coops, Jacobus P. J. Heemskerk
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Patent number: 6510011Abstract: The invention relates to an objective system (39) which is suitable for use in an optical scanning device (15). The lens system (39) comprises a first lens, or objective lens (45), and a second lens, or auxiliary lens (47), which are mounted in fixed positions in a lens holder (61). The objective lens comprises more than one half of a first spherical lens body (67) having a first diameter (D1) and the auxiliary lens comprises more than one half of a second spherical lens body (69) having a second diameter (D2) which is smaller than the first diameter. The objective lens and the auxiliary lens are surrounded by a first circular-cylindrical inner wall (83) and a second circular-cylindrical inner wall (85), respectively, of the lens holder, having a diameter which is substantially equal to the first and the second diameter, respectively. The inner walls can be provided in the lens holder in very accurate coaxial positions by use of conventional tools.Type: GrantFiled: March 22, 2001Date of Patent: January 21, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Petrus Gerardus Josephus Maria Nuyens, Derk Visser
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Publication number: 20020008894Abstract: The invention relates to an objective system (39) which is suitable for use in an optical scanning device (15). The lens system (39) comprises a first lens, or objective lens (45), and a second lens, or auxiliary lens (47), which are mounted in fixed positions in a lens holder (61). The objective lens comprises more than one half of a first spherical lens body (67) having a first diameter (D1) and the auxiliary lens comprises more than one half of a second spherical lens body (69) having a second diameter (D2) which is smaller than the first diameter. The objective lens and the auxiliary lens are surrounded by a first circular-cylindrical inner wall (83) and a second circular-cylindrical inner wall (85), respectively, of the lens holder, having a diameter which is substantially equal to the first and the second diameter, respectively. Said inner walls can be provided in the lens holder in very accurate coaxial positions by means of conventional tools.Type: ApplicationFiled: March 22, 2001Publication date: January 24, 2002Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Petrus Gerardus Josephus Nuyens, Derk Visser
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Patent number: 6124975Abstract: A transparent sheet is provided on both sides with a lenticular array (4,). The embossments (7) of at least one of the arrays (6) has a cross-section showing at least two bends (11-14), thereby improving the visibility of the Moire pattern formed by the two arrays. The sheet may be used as an anti-counterfeit mark.Type: GrantFiled: November 6, 1998Date of Patent: September 26, 2000Assignee: U.S. Philips CorporationInventors: Marinus J. J. Dona, Derk Visser
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Patent number: 6026069Abstract: An information storage system is described which comprises a reading device (6) and an optical record carrier (5) having at least two information planes (1, 2, 3). The radiation from the record carrier is converted in a detection system (15) into a detection signal (16) which is applied to a detection circuit (17). In order that this circuit can derive the read information from the detection signal in a reliable manner, the interference signals generated by the information planes which are not to be read should comply with a requirement, referred to as the interference requirement, which is characteristic of the detection circuit. Values for the parameters of the record carrier, such as the thickness of the layers between the information planes and the reflection and transmission coefficients of the information planes then follow from this interference requirement.Type: GrantFiled: September 24, 1998Date of Patent: February 15, 2000Assignee: Philips Electronics North America Corp.Inventors: Antonius H. M. Holtslag, Derk Visser
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Patent number: 5864530Abstract: An information storage system is described which comprises a reading device (6) and an optical record carrier (5) having at least two information planes (1, 2, 3). The radiation from the record carrier is converted in a detection system (15) into a detection signal (16) which is applied to a detection circuit (17). In order that this circuit can derive the read information from the detection signal in a reliable manner, the interference signals generated by the information planes which are not to be read should comply with a requirement, referred to as the interference requirement, which is characteristic of the detection circuit. Values for the parameters of the record carrier, such as the thickness of the layers between the information planes and the reflection and transmission coefficients of the information planes then follow from this interference requirement.Type: GrantFiled: January 23, 1997Date of Patent: January 26, 1999Assignee: U.S. Philips CorporationInventors: Antonius H. M. Holtslag, Derk Visser
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Patent number: 5841753Abstract: An optical information storage system has a multi-recording-layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is determined by the maximum spherical aberration permissible for the system. The number of layers in the stack is determined by the minimum distance between layers, which depends on the crosstalk in the error signals due to currently unscanned layers.Type: GrantFiled: May 21, 1997Date of Patent: November 24, 1998Assignee: U.S. Philips CorporationInventors: Antonius H. M. Holtslag, Derk Visser, Peter Coops, Jacobus P. J. Heemskerk
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Patent number: 5677903Abstract: An optical information storage system has a multi-recording layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is determined by the maximum spherical aberration permissible for the system. The number of layers in the stack is determined by the minimum distance between layers, which depends on the crosstalk in the error signals due to currently unscanned layers.Type: GrantFiled: September 1, 1994Date of Patent: October 14, 1997Assignee: U.S. Phillips CorporationInventors: Antonius H. M. Holtslag, Derk Visser, Peter Coops, Jacobus P. J. Heemskerk
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Patent number: 5511057Abstract: A reading device (6) and an optical record carrier (5) having at least two information planes (1, 2, 3). The radiation from the record carrier is converted in a detection system (15) into a detection signal (16) which is applied to a detection circuit (17). In order that this circuit can derive the read information from the detection signal in a reliable manner, the interference signals generated by the information planes which are not to be read should comply with a requirement, referred to as the interference requirement, which is characteristic of the detection circuit. Values for the parameters of the record carrier, such as the thickness of the layers between the information planes and the reflection and transmission coefficients of the information planes then follow from this interference requirement.Type: GrantFiled: December 29, 1993Date of Patent: April 23, 1996Assignee: U.S. Philips CorporationInventors: Antonius H. M. Holtslag, Derk Visser
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Patent number: 5408453Abstract: A method of and an apparatus for writing and reading and/or erasing a multilayer record carrier (1) having a guide plane (2) and a plurality of recording planes (4) are described, using a guide beam (5) which cooperates with the guide plane (2) and a scanning beam (6) for at least writing in the recording planes (4). During writing the position of the scanning focus (36) formed by the scanning beam (6) is coupled to the focus (11) of the guide beam (5) which is actively controlled by using guide information which is present in the guide plane (2). During reading the scanning beam (6) is actively controlled by its own servosystem (20-28).Type: GrantFiled: March 25, 1991Date of Patent: April 18, 1995Assignee: U.S. Philips CorporationInventors: Antonius H. M. Holtslag, Derk Visser