Patents by Inventor Alan Chalmers
Alan Chalmers 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: 11850505Abstract: A system to deliver to a user artificial flavor sensations equivalent to a selected desired real flavor having a database in which is stored data of a number of real flavors broken down into components selected from taste, smell, feel and appearance, A head mounted display device is provided to deliver visual and audio cues of a flavor from the database and a bite sensation component is mounted in the mouth of a wearer of the head mounted display controlling the delivery of taste, feel, and smell components of the flavor to the user.Type: GrantFiled: October 27, 2022Date of Patent: December 26, 2023Inventors: Alan Chalmers, Ali Asadipour
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Publication number: 20230051941Abstract: A system to deliver to a user artificial flavor sensations equivalent to a selected desired real flavor having a database in which is stored data of a number of real flavors broken down into components selected from taste, smell, feel and appearance, A head mounted display device is provided to deliver visual and audio cues of a flavor from the database and a bite sensation component is mounted in the mouth of a wearer of the head mounted display controlling the delivery of taste, feel, and smell components of the flavor to the user.Type: ApplicationFiled: October 27, 2022Publication date: February 16, 2023Inventors: Alan CHALMERS, Ali ASADIPOUR
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Patent number: 11517814Abstract: A system to deliver to a user artificial flavor sensations equivalent to a selected desired real flavor having a database in which is stored data of a number of real flavors broken down into components selected from taste, smell, feel and appearance, A head mounted display device is provided to deliver visual and audio cues of a flavor from the database and a bite sensation component is mounted in the mouth of a wearer of the head mounted display controlling the delivery of taste, feel, and smell components of the flavor to the user.Type: GrantFiled: September 3, 2020Date of Patent: December 6, 2022Inventors: Alan Chalmers, Ali Asadipour
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Publication number: 20220066539Abstract: A system to deliver to a user artificial flavor sensations equivalent to a selected desired real flavor having a database in which is stored data of a number of real flavors broken down into components selected from taste, smell, feel and appearance, A head mounted display device is provided to deliver visual and audio cues of a flavor from the database and a bite sensation component is mounted in the mouth of a wearer of the head mounted display controlling the delivery of taste, feel, and smell components of the flavor to the user.Type: ApplicationFiled: September 3, 2020Publication date: March 3, 2022Inventors: Alan CHALMERS, Ali ASADIPOUR
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Publication number: 20180270493Abstract: A method of compressing and decompressing High Dynamic Range images utilising the relationship: (I) Where ??2.Type: ApplicationFiled: August 22, 2016Publication date: September 20, 2018Inventors: Alan CHALMERS, Jonathan HATCHETT, Joshua MCNAMEE, Kurt DEBATTISTA
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Publication number: 20170094281Abstract: A method of compressing a high dynamic range original image to provide compressed image data for use with (i) a high dynamic range decoder for viewing the high dynamic range image and (ii) a reduced bit depth decoder for viewing an image of lower dynamic range which has been derived from the high dynamic range original image. The difference between the image of the high dynamic range original image and the lower dynamic range is measured and that difference information is compressed. Compressed image data is produced comprising the compressed image of the lower dynamic range and the compressed image data.Type: ApplicationFiled: May 14, 2015Publication date: March 30, 2017Applicant: THE UNIVERSITY OF WARWICKInventors: Alan CHALMERS, Kurt DEBATTISTA, Elmedin SELMANOVIC, Thomas BASHFORD-ROGERS
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Patent number: 9406112Abstract: A method of producing a compressed video data stream (12) by compressing a stream of relatively high dynamic range video frames (2). A bilateral filter (3) extracts a base frame (4) with luminance information. The base frame (4) and the original frame (2) are used to provide a detail frame (5) with chroma information. A tone mapping operation (6) is selected (7, 11) and applied to the base frame to generate a relatively low dynamic range base frame (8), which is then compressed (9). The detail frame (5) is compressed separately. Final frame data (12) is then created, consisting of the compressed relatively low dynamic range base frame, the compressed detail frame, and stored information in respect of the tone mapping operation that had been applied to the base frame.Type: GrantFiled: January 5, 2011Date of Patent: August 2, 2016Assignee: University of WarwickInventors: Francesco Banterle, Alessandro Artusi, Kurt Debattista, Patrick Ledda, Gerhard Bonnet, Gavin John Edwards, Alan Chalmers
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Patent number: 8289412Abstract: A method for increasing dynamic range of original image data representing an image comprises applying an expansion function to generate from the original image data expanded data having a dynamic range greater than that of the original image data and, obtaining an expand map comprising data indicative of a degree of luminance of regions associated with pixels in the image. The method then combines the original image data and the expanded data according to the expand map to yield enhanced image data. Apparatus for boosting the dynamic range of image data comprises a dynamic range expander that produces expanded data, a luminance analyzer that produces an expand map and a combiner that combines the original and expanded data according to a variable weighting provided by the expand map.Type: GrantFiled: November 27, 2007Date of Patent: October 16, 2012Assignee: Dolby Laboratories Licensing CorporationInventors: Francesco Banterle, Patrick Ledda, Kurt Debattista, Alan Chalmers
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Publication number: 20110235720Abstract: A method of producing a compressed video data stream (12) by compressing a stream of relatively high dynamic range video frames (2). A bilateral filter (3) extracts a base frame (4) with luminance information. The base frame (4) and the original frame (2) are used to provide a detail frame (5) with chroma information. A tone mapping operation (6) is selected (7, 11) and applied to the base frame to generate a relatively low dynamic range base frame (8), which is then compressed (9). The detail frame (5) is compressed separately. Final frame data (12) is then created, consisting of the compressed relatively low dynamic range base frame, the compressed detail frame, and stored information in respect of the tone mapping operation that had been applied to the base frame.Type: ApplicationFiled: January 5, 2011Publication date: September 29, 2011Inventors: Francesco Banterle, Alessandro Artusi, Kurt Debattista, Patrick Ledda, Gerhard Bonnet, Gavin John Edwards, Alan Chalmers
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Publication number: 20100208143Abstract: A method for increasing dynamic range of original image data representing an image comprises applying an expansion function to generate from the original image data expanded data having a dynamic range greater than that of the original image data and, obtaining an expand map comprising data indicative of a degree of luminance of regions associated with pixels in the image. The method then combines the original image data and the expanded data according to the expand map to yield enhanced image data. Apparatus for boosting the dynamic range of image data comprises a dynamic range expander that produces expanded data, a luminance analyzer that produces an expand map and a combiner that combines the original and expanded data according to a variable weighting provided by the expand map.Type: ApplicationFiled: November 27, 2007Publication date: August 19, 2010Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Francesco Banterle, Patrick Ledda, Kurt Debattista, Alan Chalmers
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Publication number: 20070001611Abstract: A lamp comprising an arc envelope and a niobium end structure coupled to the arc envelope, and wherein the end structure is shielded from a dosing material disposed within the arc envelope.Type: ApplicationFiled: June 30, 2005Publication date: January 4, 2007Inventors: Bernard Bewlay, Bruce Knudsen, Alan Chalmers, Mohamed Rahmane, James Vartuli
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Publication number: 20070001610Abstract: A lamp comprising an arc envelope and a molybdenum-rhenium end structure coupled to the arc envelope.Type: ApplicationFiled: June 30, 2005Publication date: January 4, 2007Inventors: Bernard Bewlay, Bruce Knudsen, Mohamed Rahmane, James Brewer, James Vartuli, Alan Chalmers
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Publication number: 20060290292Abstract: A method and system to supply current to a high pressure lamp is provided, the method and system comprising an alternating lamp current waveform with a half cycle mean amplitude I1 and a half cycle time duration T, a current pulse waveform including at least one current pulse with a half cycle mean amplitude I2 and at least one current pulse occurring after the trailing edge of a half cycle of the alternating lamp current, the pulse having a half cycle duration of Tp. These waveforms are combined to generate a current waveform including a current pulse waveform, the current pulse waveform starting after a time delay Td from the trailing edge of a half cycle of the alternating lamp current waveform, the time duration Tp of the at least one current pulse lasting less than the remaining time before the leading edge of the second half cycle of the alternating lamp current waveform.Type: ApplicationFiled: June 24, 2005Publication date: December 28, 2006Inventors: Jianwu Li, Alan Chalmers, Viktor Varga, Timothy Gurin, Gary Allen, Anjali Kotkunde, James McNamara
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Publication number: 20060202627Abstract: A ceramic arctube for use in a high intensity discharge lamp. The arctube includes a ceramic light transmitting tube which surrounds the arc. The light transmitting tube has two or more features selected from the group consisting of (a) an inner diameter less than 2.6 mm, (b) a wall thickness of less than 1.4 mm, (c) an average grain size of greater than 20 microns or less than 5 microns or real in-line transmission (RIT) greater than 20%, and (d) an inner surface or outer surface having an Ra value less than 100 nm. These features lead to a smaller apparent size of the arc source and less scattering of light, resulting in improved performance of the arctube in a reflector lamp.Type: ApplicationFiled: December 19, 2005Publication date: September 14, 2006Inventors: David Dudik, Gary Allen, Viktor Varga, Alan Chalmers
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Publication number: 20050168148Abstract: A ceramic arctube preferably for a high pressure discharge lamp. The ceramic arctube can have an anti-reflection interference coating on the outside or inside surface of the bulb section of the arctube. The outside and/or inside surface of the outer wall of the bulb section of the arctube can be substantially spherical to increase efficiency. The wall thickness of the outer wall of the bulb section can be shaped to lens rays from the arc toward a preselected region of a reflector optically coupled to the arctube to increase efficiency.Type: ApplicationFiled: December 17, 2004Publication date: August 4, 2005Inventors: Gary Allen, Alan Chalmers, David Dudik, Viktor Varga, Peter Brown