Patents by Inventor Brent William Hoffman
Brent William Hoffman 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: 11959942Abstract: A rate of change of current sensor includes two measurement coils, arranged such that the turns of the first and second measurement coils are interleaved. The rate of change of current sensor further comprises two return coils, arranged to progress in an opposite direction to the measurement coils. The coils form loops and progress substantially around a target measurement conductor. This ensures that the two measurement coils both receive the same electrostatic coupling from external conductors which are not the target of the measurement operation. Further, the two measurement coils are arranged such that the first coil and the second coil are, on average, the same distance to the current-carrying conductor of interest.Type: GrantFiled: March 15, 2022Date of Patent: April 16, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Brent William Hoffman, Jonathan Ephraim David Hurwitz
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Patent number: 11927607Abstract: A rate of change of current sensor includes two measurement coils, arranged on a substrate or printed circuit board. The coils form loops and progress substantially around a target measurement conductor. This ensures that the two measurement coils both receive the same electrostatic coupling from external conductors which are not the target of the measurement operation. Further, the two measurement coils are arranged such that the first coil and the second coil are, on average, the same distance to the current-carrying conductor of interest.Type: GrantFiled: March 15, 2022Date of Patent: March 12, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Brent William Hoffman, Jonathan Ephraim David Hurwitz
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Publication number: 20230296652Abstract: A rate of change of current sensor includes two measurement coils, arranged on a substrate or printed circuit board. The coils form loops and progress substantially around a target measurement conductor. This ensures that the two measurement coils both receive the same electrostatic coupling from external conductors which are not the target of the measurement operation. Further, the two measurement coils are arranged such that the first coil and the second coil are, on average, the same distance to the current-carrying conductor of interest.Type: ApplicationFiled: March 15, 2022Publication date: September 21, 2023Applicant: Analog Devices International Unlimited CompanyInventors: Brent William HOFFMAN, Jonathan Ephraim David HURWITZ
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Publication number: 20230296648Abstract: A rate of change of current sensor includes two measurement coils, arranged such that the turns of the first and second measurement coils are interleaved. The rate of change of current sensor further comprises two return coils, arranged to progress in an opposite direction to the measurement coils. The coils form loops and progress substantially around a target measurement conductor. This ensures that the two measurement coils both receive the same electrostatic coupling from external conductors which are not the target of the measurement operation. Further, the two measurement coils are arranged such that the first coil and the second coil are, on average, the same distance to the current-carrying conductor of interest.Type: ApplicationFiled: March 15, 2022Publication date: September 21, 2023Applicant: Analog Devices International Unlimited CompanyInventors: Brent William HOFFMAN, Jonathan Ephraim David HURWITZ
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Patent number: 7887200Abstract: The disclosed embodiments relate to a method and apparatus to align bit weights in a display device.Type: GrantFiled: November 9, 2005Date of Patent: February 15, 2011Assignee: TTE Technology, Inc.Inventor: Brent William Hoffman
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Publication number: 20110006690Abstract: An electronic device comprising a sensor adapted to sense ambient light and an indicator adapted to display a power consumption status. The electronic device may additionally comprise a processor adapted to vary the luminosity of the device based on the ambient light sensed. A method may comprise sensing ambient light, illuminating a display at a luminosity based on the ambient light, and displaying a power consumption status on the device.Type: ApplicationFiled: July 16, 2008Publication date: January 13, 2011Applicant: SHENZHEN TCL NEW TECHNOLOGY LTD.Inventors: Brent William Hoffman, Scott Charles Baxter
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Patent number: 7762675Abstract: The disclosed embodiments relate to a system and method for compensating for spoke light in a video unit. More specifically, there is provided a method comprising measuring a first light level during a non-spoke time of a color wheel to generate a non-spoke light level; and setting a spoke light compensation value based on the measured non-spoke light level. There is also provided a video unit comprising a light source configured to generate a first light level during a non-spoke time of a color wheel, a photodiode assembly configured to measure the first light level to generate a non-spoke light level, and a processor configured to set a spoke light compensation value based on the non-spoke light level.Type: GrantFiled: July 2, 2008Date of Patent: July 27, 2010Assignee: TTE Technology, Inc.Inventor: Brent William Hoffman
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Patent number: 7290883Abstract: The disclosed embodiments relate to a system and method for projecting video onto a screen. A video unit (10) may comprise a color wheel (14), a light source (12) configured to project light through the color wheel (14) during a spoke time, and a digital micromirror device (18) configured to reflect the projected light (30) onto a screen (26). The method may comprise the acts of shining a generally white light (28) through a region on a color wheel (14) to create a colored light (30), the region comprising two color filters, reflecting the colored light (30) off of a micromirror disposed on a digital micromirror device (18), and projecting the reflected colored light (34) onto a screen (26).Type: GrantFiled: March 24, 2005Date of Patent: November 6, 2007Assignee: TTE Tchnology, Inc.Inventor: Brent William Hoffman
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Patent number: 7204592Abstract: A liquid crystal display projection system for pictures that can be viewed stereoscopically, comprising: a source of a repetitive three color sequence of light; first and second imagers responsive to respective drive signals representative of the same picture from different angles of view; at least a first polarizing beam splitter for separating said repetitive three-color sequence of light into a P polarized three color sequence of light and an S polarized three color sequence of light, said S polarized three color sequence of light illuminating said first imager and said P polarized three color sequence of light illuminating said second imager; a first filter for removing P polarized light directed to said first imager; and, a second filter for removing P polarized light reflected from said second imager, wherein said light reflected from said first imager and said light filtered by said second filter form a stereoscopic image when viewed through respective P and S polarizing lenses.Type: GrantFiled: January 27, 2003Date of Patent: April 17, 2007Assignee: Thomson LicensingInventors: Eugene Murphy O'Donnell, Brent William Hoffman, Estill Thone Hall, Jr., Valter Drazic
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Patent number: 7088331Abstract: A device for controlling common mode electrode voltage in a liquid crystal display includes at least a first sensor for measuring flicker resulting from applying a video signal with a predetermined color and drive level to an imager. A detector for determining a difference between a positive field detector voltage and a negative field detector voltage is used to provide a feed-back loop for feeding back the difference to a controller to adjust the common mode electrode voltage.Type: GrantFiled: November 29, 2001Date of Patent: August 8, 2006Assignee: Thomson LicensingInventors: Eugene Murphy O'Donnell, Brent William Hoffman
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Publication number: 20030098835Abstract: A device (10) for controlling common mode electrode voltage in a liquid crystal display includes at least a first sensor (12) for measuring flicker resulting from applying a video signal with a predetermined color and drive level to an imager. A detector (18) for determining a difference between a positive field detector voltage and a negative field detector voltage is used to provide a feedback loop for feeding back the difference to a controller to adjust the common mode electrode voltage.Type: ApplicationFiled: July 30, 2002Publication date: May 29, 2003Inventors: Eugene Murphy O'Donnell, Brent William Hoffman