Patents by Inventor Andrew Chiu
Andrew Chiu 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: 11944611Abstract: The present disclosure relates to compounds of Formula (Ia) and (Ib): or a pharmaceutically acceptable salt thereof, which are useful in the treatment of an HIV infection in heavily treatment-experienced patients with multidrug resistant HIV infection.Type: GrantFiled: July 15, 2019Date of Patent: April 2, 2024Assignee: Gilead Sciences, Inc.Inventors: Laura Elizabeth Bauer, Anna Chiu, Eric M. Gorman, Andrew Stephen Mulato, Martin Sunkwang Rhee, Charles William Rowe, Scott P. Sellers, Dimitrios Stefanidis, Winston C. Tse, Stephen R. Yant, Dana J. Levine
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Publication number: 20240102941Abstract: Methods and systems for calibrating simulated measurement signals generated by a parametric measurement model are described herein. Regression on real measurement signals is performed using a parametric model. The residual fitting error between the real measurement signals and simulated measurement signals generated by the parametric model characterizes the error of the parametric model at each set of estimated values of the one or more floating parameters. Simulated measurement signals are generated by the parametric model at specified values of the floating parameters. A residual fitting error associated with the simulated measurement signals generated at the specified values of the floating parameters is derived from the residual fitting errors calculated by the regression on the real measurement signals. The simulated measurement signals are calibrated by adding the residual fitting error to the uncalibrated, simulated measurement signals.Type: ApplicationFiled: September 11, 2023Publication date: March 28, 2024Inventors: Brian C. Lin, David Wu, Song Wu, Tianrong Zhan, Emily Chiu, Andrew Lagodzinski
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Publication number: 20180170553Abstract: An innovative passive cooling solution with sealed UAV enclosure system allows heat from a semiconductor chip to be dissipated to the ambient environment through evaporation/condensation phase-change cooling and air cooling a heat sink such as a fin without any additional power consumption to operate cooling solution. One example of such a solution may include a pipe with a fin and a fluid. The pipe may include a wick structure along an inner surface of the pipe configured to allow the fluid to travel within the wick structure and to allow a vapor form of the fluid to exit the wick structure towards a center of the pipe.Type: ApplicationFiled: December 20, 2016Publication date: June 21, 2018Inventors: Peng WANG, Don LE, Jon ANDERSON, Chinchuan Andrew CHIU
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Publication number: 20170061992Abstract: In one embodiment, a system includes a wafer and a plurality of contact pads positioned on the wafer. Each contact pad includes a multi-layer stud and a cap layer. The multi-layer stud includes at least a bottom layer and a top layer, the bottom layer being positioned on and extending from an upper surface of the wafer substantially in a direction perpendicular to the upper surface of the wafer, and the top layer being positioned above the bottom layer and substantially extending in the direction perpendicular to the upper surface of the wafer. The cap layer is positioned on the top layer of the multi-layer stud and extends beyond sidewalls of the multi-layer stud substantially in a direction parallel to the upper surface of the wafer. The bottom layer has a larger cross-sectional area than any layer of the multi-layer stud positioned thereabove.Type: ApplicationFiled: August 31, 2015Publication date: March 2, 2017Inventors: Andrew Chiu, Matthew W. Last, Edward H. P. Lee, Michael M. H. Yang
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Patent number: 9047894Abstract: A magnetic write head having a write pole with a tapered trailing edge portion and having a spin torque oscillator that is formed entirely on the tapered trailing edge portion and that is self aligned with first and second sides of the write pole. The write pole and spin torque oscillator are formed by a method wherein the sides of the spin torque oscillator and write pole are defined in the same photolithographic and ion milling process, thereby allowing for the self alignment of the spin torque oscillator with the sides of the write pole.Type: GrantFiled: October 3, 2013Date of Patent: June 2, 2015Assignee: HGST Netherlands B.V.Inventors: Andrew Chiu, Edward H. P. Lee
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Publication number: 20150098150Abstract: A magnetic write head having a write pole with a tapered trailing edge portion and having a spin torque oscillator that is formed entirely on the tapered trailing edge portion and that is self aligned with first and second sides of the write pole. The write pole and spin torque oscillator are formed by a method wherein the sides of the spin torque oscillator and write pole are defined in the same photolithographic and ion milling process, thereby allowing for the self alignment of the spin torque oscillator with the sides of the write pole.Type: ApplicationFiled: October 3, 2013Publication date: April 9, 2015Applicant: HGST Netherlands B.V.Inventors: Andrew Chiu, Edward H. P. Lee
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Patent number: 8855412Abstract: Embodiments include a method of image processing including decomposing a reflectance spectrum for a test surface into a linear combination of reflectance spectra of a set of test targets. The coefficient vector calculated in this decomposition is used to predict a response of an imaging sensor to the test surface. A plurality of such predicted responses may be used for various applications involving color detection and/or classification, including human skin tone detection.Type: GrantFiled: March 20, 2012Date of Patent: October 7, 2014Assignee: QUALCOMM IncorporatedInventors: Shuxue Quan, Chinchuan Andrew Chiu, Xiaoyun Jiang
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Patent number: 8854764Abstract: Techniques of the present invention include detecting a touchdown between a read/write head of a disk drive and a surface of a magnetic disk using multiple touchdown sensors located at an air-bearing surface (ABS). The multiple sensors increase the likelihood that a touchdown event—i.e., a portion of the ABS of the head contacting the underlying magnetic disk surface—will be detected. During touchdown, the portion of the head contacting the magnetic disk generates frictional heat which changes a characteristic (e.g., the electrical resistance) of at least one of the sensors located at the ABS. When the sensors are connected to a detection circuit, the changing characteristic may be monitored to identify a touchdown event. The touchdown sensors may be, for example, electrically connected in either series or parallel to the detection circuit. Thus, as long as the electrical resistance of one of the sensors is changed, a touchdown event may be detected.Type: GrantFiled: September 30, 2011Date of Patent: October 7, 2014Assignee: HGST Netherlands B.V.Inventors: Andrew Chiu, Sujit Kirpekar, Katalin Pentek, Oscar J. Ruiz, David J. Seagle
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Patent number: 8824827Abstract: Systems, methods and apparatus for image processing by classifying pixels are described. In some systems, an exposure control operation is performed according to the pixel classifications. In some cases, the pixels are classified according to a predetermined segmentation of a color space, based on predicted sensor responses.Type: GrantFiled: January 5, 2012Date of Patent: September 2, 2014Assignee: QUALCOMM IncorporatedInventors: Shuxue Quan, Chinchuan Andrew Chiu, Xiaoyun Jiang
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Patent number: 8596541Abstract: This disclosure describes barcode scanning techniques for an image capture device. The image capture device may automatically detect a barcode within an image while the image capture device is operating in a non-barcode image capture mode, such a default image capture mode. In one aspect, the detection of the barcode within the image may be based on a combination of identified edges and low intensity regions within the image. The image capture device may configure, based on the detection of the barcode, one or more image capture properties associated with the image capture device to improve a quality at which the images are captured. The image capture device captures the image in accordance with the configured image capture properties. The techniques may effectively provide a universal and integrated front-end for producing improved quality images of barcodes without requiring significant interaction with a user via a complicated user interface.Type: GrantFiled: February 22, 2008Date of Patent: December 3, 2013Assignee: QUALCOMM IncorporatedInventors: Chinchuan Andrew Chiu, Jingqiang Li, Hau Hwang, Hsiang-Tsun Li, Stephen Horton, Xiaoyun Jiang, Joseph Cheung
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Patent number: 8600189Abstract: To combine two or more images, an image capture device may compute motion vectors for a plurality of blocks of pixels of one of the images. The image capture device may also interpolate or extrapolate motion vectors for individual pixels or sub-blocks of pixels using the block motion vectors. The image capture device may then average the first and second images by averaging each of the pixels of the first image with pixels of the second image that correspond to a location indicated by the plurality of motion vectors. These techniques may reduce blur in image information resulting from certain movements during image capture or the use of certain image capture technologies.Type: GrantFiled: November 12, 2007Date of Patent: December 3, 2013Assignee: QUALCOMM IncorporatedInventors: Kalin Atanssov, Chinchuan Andrew Chiu, Hau Hwang, Hsiang-Tsun Li
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Patent number: 8577216Abstract: The disclosure relates to techniques for calibration of an auto-focus process in an image capture device. The techniques may involve calibration of a lens actuator used to move a lens within a search range during an auto-focus process. For example, an image capture device may adjust reference positions for the search range based on lens positions selected for different focus conditions. The different focus conditions may include a far focus condition and a near focus condition. The focus conditions may be determined based on a detected environment in which the device is used. Detection of an indoor environment may indicate a likelihood of near object focus, while detection of an outdoor environment may indicate a likelihood of far object focus. An image capture device may detect indoor and outdoor environments based on lighting, exposure, or other conditions.Type: GrantFiled: February 13, 2008Date of Patent: November 5, 2013Assignee: QUALCOMM IncorporatedInventors: Jingqiang Li, Szepo Robert Hung, Chinchuan Andrew Chiu
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Patent number: 8547660Abstract: A magnetic write head having a tapered trailing edge and having a magnetic layer formed over a trailing edge of the write pole at a location recessed from the ABS, the magnetic layer being separated from the trailing edge of the write pole by a thin non-magnetic layer. The thin non-magnetic layer is preferably sufficiently thin that the magnetic layer can function as a portion of the write pole in a region removed from the ABS. A trailing magnetic shield is formed over the write pole and is separated from the write pole by a non-magnetic trailing gap layer. A non-magnetic spacer layer can be formed over the magnetic layer to provide additional separation between the magnetic layer and the trailing magnetic shield.Type: GrantFiled: December 17, 2009Date of Patent: October 1, 2013Assignee: HGST Netherlands B.V.Inventors: Donald G. Allen, Amanda Baer, Yingjian Chen, Andrew Chiu, Liubo Hong, Wen-Chien D. Hsiao, Edward H. P. Lee, Fenglin Liu, Aron Pentek, Katalin Pentek, Kyusik Shin, Yi Zheng, Qiping Zhong, Honglin Zhu
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Patent number: 8498332Abstract: Apparatus are provided including an image signal carrier, a luminance information evaluator, and a chrominance information modifier. The image signal carrier is encoded with an image signal including luminance information and chrominance information. The luminance information evaluator evaluates the luminance information in the image signal for a given region within the image to identify when the given region is one of substantially white and substantially dark. The chrominance information modifier is provided to modify the chrominance information corresponding to the given region when the given region is one of substantially white and substantially dark.Type: GrantFiled: September 21, 2006Date of Patent: July 30, 2013Assignee: QUALCOMM IncorporatedInventors: Xiaoyun Jiang, Shuxue Quan, Chinchuan Andrew Chiu, Szepo Robert Hung, Ruben M. Velarde, Ying Xie Noyes
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Patent number: 8442344Abstract: The disclosure describes adaptive filtering techniques to improve the quality of captured image information, such as video or still images. An image sensor captures image information and determines a plurality of parameter values based on a current exposure index and a current scaling factor of the image information. The adaptive spatial image filter includes both horizontal and vertical sharpening filters and configures, i.e., adapts, the horizontal sharpening filter and the vertical sharpening filter based on the plurality of parameter values determined by the image sensor. The adaptive spatial image filter applies the horizontal and vertical sharpening filters to at one channel of the image information to generate filtered image information.Type: GrantFiled: August 7, 2006Date of Patent: May 14, 2013Assignee: QUALCOMM IncorporatedInventors: Xiaoyun Jiang, Chinchuan Andrew Chiu, Dennis Liu, Victor H. Chan, Xin Zhong
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Publication number: 20130083430Abstract: Techniques of the present invention include detecting a touchdown between a read/write head of a disk drive and a surface of a magnetic disk using multiple touchdown sensors located at an air-bearing surface (ABS). The multiple sensors increase the likelihood that a touchdown event—i.e., a portion of the ABS of the head contacting the underlying magnetic disk surface—will be detected. During touchdown, the portion of the head contacting the magnetic disk generates frictional heat which changes a characteristic (e.g., the electrical resistance) of at least one of the sensors located at the ABS. When the sensors are connected to a detection circuit, the changing characteristic may be monitored to identify a touchdown event. The touchdown sensors may be, for example, electrically connected in either series or parallel to the detection circuit. Thus, as long as the electrical resistance of one of the sensors is changed, a touchdown event may be detected.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Inventors: Andrew Chiu, Sujit Kirpekar, Katalin Pentek, Oscar J. Ruiz, David J. Seagle
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Patent number: 8306336Abstract: In accordance with one embodiment of the disclosure, apparatus are provided, including an image processor, a unique image processing mechanism, and a unique image processing activation mechanism. The image processor includes the unique image processing mechanism, which processes a certain type of image. The unique image processing activation mechanism causes the unique image processing mechanism to process a given image.Type: GrantFiled: May 17, 2006Date of Patent: November 6, 2012Assignee: QUALCOMM IncorporatedInventors: Xiaoyun Jiang, Chinchuan Andrew Chiu, Shuxue Quan
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Publication number: 20120176507Abstract: Embodiments include a method of image processing including decomposing a reflectance spectrum for a test surface into a linear combination of reflectance spectra of a set of test targets. The coefficient vector calculated in this decomposition is used to predict a response of an imaging sensor to the test surface. A plurality of such predicted responses may be used for various applications involving color detection and/or classification, including human skin tone detection.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Applicant: QUALCOMM IncorporatedInventors: Shuxue Quan, Chinchuan Andrew Chiu, Xiaoyun Jiang
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Patent number: 8208758Abstract: The disclosure is directed to techniques for region-of-interest (ROI) video processing based on low-complexity automatic ROI detection within video frames of video sequences. The low-complexity automatic ROI detection may be based on characteristics of video sensors within video communication devices. In other cases, the low-complexity automatic ROI detection may be based on motion information for a video frame and a different video frame of the video sequence. The disclosed techniques include a video processing technique capable of tuning and enhancing video sensor calibration, camera processing, ROI detection, and ROI video processing within a video communication device based on characteristics of a specific video sensor. The disclosed techniques also include a sensor-based ROI detection technique that uses video sensor statistics and camera processing side-information to improve ROI detection accuracy.Type: GrantFiled: February 28, 2006Date of Patent: June 26, 2012Assignee: QUALCOMM IncorporatedInventors: Haohong Wang, Shuxue Quan, Khaled Helmi El-Maleh, Chinchuan Andrew Chiu, Xiaoyun Jiang
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Patent number: 8201320Abstract: A method for manufacturing a magnetic write head having a leading magnetic shield and a trailing magnetic shield that are arranged to prevent the lost of magnetic write field to the trailing magnetic shield. The write head includes a non-magnetic step layer that provides additional spacing between the trailing magnetic shield and the write pole at a region removed from the air bearing surface.Type: GrantFiled: December 17, 2009Date of Patent: June 19, 2012Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Donald G. Allen, Yingjian Chen, Andrew Chiu, Liubo Hong, Wen-Chien D. Hsiao, Edward H. P. Lee, Fenglin Liu, Katalin Pentek, Kyusik Shin, Yi Zheng, Qiping Zhong, Honglin Zhu