Abstract: Structures, devices and methods are provided for creating heterojunction AlGaN/GaN metal two-dimensional electron gas (2DEG) tunnel-junction field-effect transistors (TJ-FET). In one aspect, metal-2DEG Schottky tunnel junctions can be employed in group III-Nitride field-effect devices that enable normally-off operation, large breakdown voltage, low leakage current, and high on/off current ratio. As a further advantage, AlGaN/GaN metal-2DEG TJ-FETs are disclosed that can be fabricated in a lateral configuration and/or a vertical configuration. Further non-limiting embodiments are provided that illustrate the advantages and flexibility of the disclosed structures.
Type:
Grant
Filed:
September 8, 2010
Date of Patent:
August 19, 2014
Assignee:
The Hong Kong University of Science and Technology
Inventors:
Jing Chen, Li Yuan, Hongwei Chen, Chunhua Zhou
Abstract: Described herein are systems and methods that employ a widgetless and buttonless multi-touch interface for constrained manipulations of 3D objects. The widget-less multi-touch user interface can map different multi-touch gestures to different 3D object manipulation tasks, allowing a user to manipulate 3D objects without operating widgets or performing mode switchings or tool selections. User interaction is greatly simplified by using single touch actions that simultaneously specify the transformation constraint, the transformation type, and the magnitude of transformation and apply the transformation to the focus object. Additionally, the axis-based constrained manipulations support active snapping and axis transfer. Active snapping allows the user to draw a free touch path connecting two 3D objects to be snapped together, avoiding tedious operations required with standard transformation manipulations.
Type:
Application
Filed:
February 7, 2012
Publication date:
August 14, 2014
Applicant:
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Abstract: Described herein are systems, apparatuses and methods for the design and use of a suction-controlled box for the measurement of stress-dependent soil and water characteristics, shear strength, volume changes and consolidation characteristics from a single unsaturated soil specimen. The suction-controlled box can include a suction control part and a mechanical loading part, which can apply various suctions and mechanical loadings to test a specimen for a full range of suctions. The suction-controlled box can also include a helical water compartment that can flush diffused air bubbles.
Type:
Grant
Filed:
September 9, 2011
Date of Patent:
August 12, 2014
Assignee:
The Hong Kong University of Science and Technology
Abstract: The subject disclosure relates to generating models from images. In an aspect, multi-view semantic segmentation is provided to recognize and segment images at the pixel level into semantically meaningful areas, and which can provide labels with a specific object class. In further aspects, a partition scheme is provided that can separate objects into independent blocks using major line structures of a scene. In addition, an inverse patch-based orthographic composition and structure analysis on a block is provided that can regularize noisy and missing reconstructed 3D data to facilitate image-based modeling.
Type:
Grant
Filed:
February 3, 2010
Date of Patent:
August 5, 2014
Assignee:
The Hong Kong University of Science and Technology
Inventors:
Long Quan, Jianxiong Xiao, Tian Fang, Peng Zhao
Abstract: AIE (aggregation-induced emission)-active TPE derivatives, TPE-TPP, TPE-MitoR and TPE-IQ are contemplated. These specific TPE derivatives are useful as fluorescent agents for mitochondrial imaging and as apoptosis inducers. Possessing high specificity to mitochondria, superior photostability and appreciable tolerance to microenvironment change, TPE derivatives are well-suited imaging agents for mitochondrial targeting and morphological change tracking. Because of their synthetic flexibility, TPE derivatives can be further modified as dual-functional probes for an array of applications such as sensing of ROS, metal ions, or pH change in mitochondria.
Type:
Application
Filed:
January 27, 2014
Publication date:
July 31, 2014
Applicant:
The Hong Kong University of Science and Technology
Abstract: A multi-vinylsulfone containing molecule is described herein. The multi-vinylsulfone containing molecule can be formed by dissolving a water soluble polymer containing a hydroxyl group in an aqueous solution to form a polymer solution; adding a molecule containing two vinylsulfone groups to the polymer solution; and forming a modified polymer by controlling a number of the vinylsulfone groups that are added to the polymer. A hydrogel is also described herein that can include the multi-vinylsulfone containing molecule and a multi-thiol containing molecule. The hydrogel can be formed from an aqueous solution that includes the multi-vinylsulfone containing molecule and the multi-thiol containing molecule by undergoing gelatation upon delivery to a site in the body. Also described is a drug delivery system that employs the hydrogel.
Type:
Application
Filed:
June 15, 2012
Publication date:
July 31, 2014
Applicant:
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Abstract: The present invention provides materials and methods for rapid and sensitive determination of global methylation profile of genomic DNA. In one embodiment, the present invention provides the fluorescence polarization (FP) based measurement of DNA methylation (FPDM) assay, wherein the FPDM assay comprises restriction digestion of DNA molecules using a pair of methyl-sensitive and methyl-insensitive restriction endonuclease enzymes, polymerase chain extension of digested DNA molecules via the incorporation of fluorescently labeled dNTP(s), and analysis via fluorescence polarization techniques.
Type:
Application
Filed:
January 16, 2013
Publication date:
July 17, 2014
Applicant:
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Abstract: Cooperative caching systems incorporating Plug-and-Play base stations are described herein. Plug-and-Play base stations with large caching capacities are employed in a wireless network to perform cooperative transmission with macro base stations. Each Plug-and-Play base station can either have wireless backhaul or a low-cost wired backhaul connection to the macro base stations. Cooperative caching systems can direct traffic between the Plug-and-Play base stations and the macro base stations.
Type:
Application
Filed:
August 23, 2013
Publication date:
July 17, 2014
Applicant:
The Hong Kong University of Science and Technology
Abstract: Disclosed are ways to generate a melody. Currently, no algorithm exists for automatically composing a melody based on music lyrics. However, according to some recent studies, within a song, there usually exists a correlation between a song's notes and a song's lyrics wherein a melody can be generated based on such correlation. Disclosed herein, are systems, methods and algorithms that consider the correlation between a song's lyrics and a song's notes to compose a melody.
Type:
Application
Filed:
December 3, 2013
Publication date:
June 26, 2014
Applicant:
The Hong Kong University of Science and Technology
Inventors:
Chi Wing WONG, Raymond Ka Wai SZE, Cheng LONG
Abstract: Multi-hop architectures of a wireless mesh network (WMN) compatible with the existing WiFi devices and potentially offering a much larger total capacity than a single-hop WiFi cell. The proposed architectures are scalable and do not have the hidden-terminal and the exposed-terminal problems intrinsic in a multi-hop environment that limited the space reuse efficiency of a WMN. The various disclosed architectures also support a fast and efficient location tracking scheme and can overcome the low space reuse efficiency in many of the existing WMN architectures.
Type:
Grant
Filed:
May 1, 2007
Date of Patent:
June 24, 2014
Assignee:
The Hong Kong University of Science and Technology
Abstract: Method, systems and software are proposed for obtaining for blocks of a first image similar blocks of a second image (the “reference image”). The blocks of the first image are processed sequentially, for each block trying out a number of candidate locations in the second image and evaluating a cost function for each. Each candidate location in the second image is displaced by a respective motion vector from the block of the first image. In a first aspect of the invention the cost function is a function of a predicted motion vector for future blocks of the first image (i.e. blocks of the first image which have not yet been processed). In a second aspect of the invention the motion vectors are given by location values which are not all whole pixel spacings, halves of the pixel spacing, or quarters of the pixel spacing.
Type:
Grant
Filed:
June 16, 2006
Date of Patent:
June 24, 2014
Assignee:
The Hong Kong University of Science and Technology
Abstract: A frequency-hopping pulse-width modulator is disclosed, which facilitates a switching regulator to use smaller-size inductive and capacitive elements, to have an improved power efficiency at light load, as well as predictable spectrum at different load levels. The improved modulator automatically determines the switching frequency of a switching regulator according to the load current delivered by the switching regulator from a number of pre-defined frequencies, which are all multiples of a fundamental frequency. By designing the maximum switching frequency of frequency-hopping pulse-width modulator in the MHz range, a switching regulator is able to use smaller-size inductive and capacitive elements. Light-load efficiency of the switching regulator with the frequency-hopping pulse-width modulator is also greatly improved as switching frequency of such switching regulator is reduced with decreased load current.
Type:
Grant
Filed:
December 30, 2008
Date of Patent:
June 24, 2014
Assignee:
The Hong Kong University of Science and Technology
Inventors:
Tsz Yin Man, Kwok Tai Philip Mok, Man Sun John Chan
Abstract: Methods and apparatus described herein are associated with integrated magnetic induction devices. A magnetic induction device can include a groove formed in a substrate, a magnetic core included in the groove and surrounded by a conductive winding that is adjacent to portion(s) of the substrate, and respective insulation layers included between the substrate and the conductive winding and between the magnetic core and the conductive winding. An inductor can further include conductive vias formed in the substrate and connected to respective portions of the conductive winding. Further, a transformer can include a groove formed in a substrate, a closed-loop/gapped magnetic core included in the groove and surrounded by first and second conductive windings that are adjacent to respective portions of the substrate, and respective insulation layers formed between the substrate and the first and second conductive windings, and between the closed-loop/gapped magnetic core and the first and second conductive windings.
Type:
Grant
Filed:
March 29, 2012
Date of Patent:
June 17, 2014
Assignee:
The Hong Kong University of Science and Technology
Inventors:
Johnny Kin On Sin, Rongxiang Wu, Xiangming Fang
Abstract: The invention relates to liquid crystal display cells with fast response and continuous gray scale. The liquid crystal cell is based on a field-sequential color system (“FSC”) and comprises a chiral smectic liquid crystal whose helix pitch is less than thickness of liquid crystal layer placed between two polarizers, as well as a source of voltage applied to electrodes of the cell, wherein the amplitude of the applied voltage is less than the critical voltage amplitude of the helix unwinding. The liquid crystal has one steady state corresponding to twisted helix without applied voltage.
Type:
Grant
Filed:
May 18, 2011
Date of Patent:
June 17, 2014
Assignee:
The Hong Kong University of Science and Technology
Inventors:
Vladimir Grigorievich Chigrinov, Evgeny Pavlovich Pozhidaev, Anatoli Alexandrovich Murauski, Hoi Sing Kwok
Abstract: Network congestion management techniques are applied in a communication network. Network characteristics and target thresholds can be determined. A transmission mode can be determined. Further, a sending rate can be determined based on the transmission mode and network characteristics. In one aspect, network characteristics at a recent time can be determined to alter sending rates in a network to manage network congestion.
Type:
Application
Filed:
April 1, 2013
Publication date:
June 12, 2014
Applicant:
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Abstract: The present invention provides a material for forming an antimicrobial surface coating with multi-level antimicrobial properties, which comprises one or more volatile or gaseous biocides, one or more nonvolatile biocides, and one or more polymers, wherein the volatile or gaseous biocides are encapsulated in the polymers to provide a sustained release of the volatile or gaseous biocides. The present invention further provides a method for preparing the material.
Type:
Grant
Filed:
December 4, 2009
Date of Patent:
June 3, 2014
Assignee:
The Hong Kong University of Science and Technology
Abstract: Described herein is a microchannel that is formed beneath and parallel to a surface of a silicon substrate. Silicon migration technology is utilized to form a microchannel that is buried beneath the surface of the silicon substrate. Etching opens at least one end of the microchannel. Oxidization is utilized through the open end of the microchannel to facilitate a controlled diameter of the microchannel.
Type:
Grant
Filed:
December 20, 2012
Date of Patent:
May 6, 2014
Assignee:
The Hong Kong University of Science and Technology
Abstract: Described herein is a novel transcoding technique called lossless inter frame transcoding (LIFT) for improving the error resilience of video streaming. According to various embodiments, conventional coded blocks are selectively transcoded into new transcoded blocks. At the decoder, the transcoded blocks can be transcoded back to the conventional coded blocks when prediction is available and can also be robustly decoded independently when prediction is unavailable. According to another embodiment, an offline transcoding and online composing technique is provided for generating a composite frame using the transcoded and conventional coded blocks and adjusting the ratio of the transcoded blocks, thereby achieving error robustness scalability.
Type:
Grant
Filed:
September 8, 2009
Date of Patent:
May 6, 2014
Assignee:
The Hong Kong University of Science and Technology
Abstract: A device with simultaneous negative effective mass density and bulk modulus has at least one tubular section and front and back membranes sealing the tubular section. The front and back membranes sealing the tubular sections seal the tubular section sufficiently to establish a sealed or restricted enclosed fluid space defined by the tubular section and the membranes, and restrict escape or intake of fluid resulting from acoustic vibrations. A pair of platelets are mounted to the membranes, with the individual platelets substantially centered on respective ones of the front and back membranes.
Type:
Application
Filed:
October 29, 2013
Publication date:
May 1, 2014
Applicant:
The Hong Kong University of Science and Technology
Inventors:
Guancong MA, Min YANG, Ping SHENG, Zhiyu YANG
Abstract: A method for wastewater treatment which comprises (a) separating and/or collecting urine from the wastewater for pretreatment, (b) removing phosphorus from urine using seawater, (c) optionally oxidizing nitrogen from urine, and (d) discharging the phosphorus-removed and/or nitrogen-oxidized urine to a sewer.
Type:
Application
Filed:
May 28, 2012
Publication date:
May 1, 2014
Applicant:
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventors:
Guanghao Chen, Hamish Robert Mackey, Feng Jiang, Ho Kwong Chui