Patents Assigned to Applied Science & Technology
  • Patent number: 8917951
    Abstract: The presently claimed invention provides a method for stitching a plurality of images together in a way with least memory and CPU usage, and minimum file input and output, while still possessing fast computation speed to avoid post-scan delay for whole slide viewing and good stitching quality. The method of the present invention comprises the steps of calculating featureness of each candidate strip of a image by applying a mathematical transformation, calculating offset of the strip with correlation maximum location, calculating stitching reliability of the candidate strip from the pre-defined weighted function of its featureness and the correlation coefficients of each matching block, and determining optimal stitching path with stitching reliability.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: December 23, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Zuoping Chen, Xiaohua Wu
  • Publication number: 20140347863
    Abstract: This invention discloses a lighting device for omnidirectional light emission with efficient heat dissipation. In one embodiment, a lighting device comprises lighting modules circumferentially arranged such that generation of the omnidirectional light is allowable, and a supporting unit attached to each lighting module's heat-dissipating side for providing mechanical support. A space formed by minimally enclosing all the lighting modules includes a first polar opening, a second polar opening opposite thereto, and a ventilation channel between the two polar openings for enabling air flowing through the ventilation channel to carry away at least part of heat obtained from the heat-dissipating sides of the lighting modules to outside said space. A line-of-sight path between the two polar openings is identifiable, allowing a direct flow of air that advances through the ventilation channel between the two polar openings to be realizable, thereby promoting the carrying away of heat to outside said space.
    Type: Application
    Filed: August 22, 2013
    Publication date: November 27, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventor: Kai Chiu WU
  • Publication number: 20140343901
    Abstract: The presently claimed invention provides a method for optimizing an electrodeposition process of a plurality of vias in a wafer. Instead of simulating a large number of via on the wafer for via filling, a representative via is selected with the maximum value of critical factor, which is a function of process parameters. The filling of the representative via is simulated with different sampling points to find out the filling goodness in order to find out the optimized process windows of process parameters. An optimizer is also disclosed, which either provides sampling points or reduces sampling points under artificial neural network method. Calculation of filling goodness is used for evaluating via filling quality and further comparing among via fillings simulated at different sampling points. Consequently, the method of present invention is able to shorten the simulation time for via filling as well as provide a process window with high accuracy.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yaofeng SUN, Bin XIE, Xunqing SHI, Ou DONG
  • Publication number: 20140339709
    Abstract: A system for bonding a die to a high power dielectric carrier such as a ceramic dielectric core with double-sided conductive layers is described. In the system, the upper conductive layer has a first area whose surface has a first wettability. A second area that at least partially surrounds the first area has a surface with a second wettability that is greater than the first wettability. During bonding, an adhesive material bonding a chip to the substrate spreads among the first area by a downward force placed on the chip. Due to the difference in wettability, the adhesive material then spreads among the second area by a wetting force generated by the greater second wettability of the second area surface causing the chip to be drawn down until reaching a predetermined position. The predetermined position can be determined by substrate protrusions or substrate cavities.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 20, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yuxing Ren, Ziyang Gao
  • Patent number: 8890750
    Abstract: Systems and methods which utilize a symmetrical partially coupled microstrip slot feed patch antenna element configuration to provide highly decoupled dual-polarized wideband patch antenna elements are shown. Embodiments provide a microstrip slot feed configuration in which a slot of a first signal feed is centered with respect to the patch and further provide a microstrip slot feed configuration in which slots of a second signal feed are symmetrically disposed with respect to the center of the patch and at positions near the edges of the patch. The microstrip feed utilized in communicating signals with respect to the slots of the second signal feed is adapted to provide signals of substantially equal amplitude and 180° out of phase with respect to each other according to embodiments. The second signal feed configuration utilized according to embodiments provides partial coupling between the patch and the second signal feed.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: November 18, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Angus C. K. Mak, Corbett R. Rowell, Hau Wah Lai
  • Patent number: 8891905
    Abstract: Systems and methods which provide generation of high resolution depth maps from low resolution depth information using boundary-based processing techniques are disclosed. Boundary-based depth processing provided by embodiments implements boundary detection and boundary-based interpolation algorithms for providing high resolution depth information from low resolution depth information and high resolution image information. Boundary detection algorithms are implemented according to embodiments to detect object boundaries (e.g., depth discontinuities), where the low resolution depth samples are typically inaccurate and generally in need of refining. Boundary-based interpolation algorithms are implemented according to embodiments of the invention to refine intermediate upsampled depth information (e.g., spatially interpolated low resolution depth information), using the boundary information provided by a boundary detection algorithm, and provide high resolution depth information.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 18, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventor: Chunhui Cui
  • Patent number: 8888290
    Abstract: A polarization beam splitter includes at least six prisms assembled together to form a single solid components. At least one diagonal interface is formed by a combination of two or more prism surfaces. The solid polarization beam splitter component has at least four light entrance/exit surfaces with at least one of the light entrance/exit surfaces including a step. At least one of the prisms has a non-triangular cross-sectional shape. At least one surface of a prism that forms a portion of the diagonal interface has a polarization beam splitting material disposed thereon resulting in a diagonal interface that includes a polarization beam splitting material. The polarization beam splitter can be incorporated into various image projection apparatus including 2D, multiple image, and 3D projection apparatuses.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: November 18, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventor: Ying Liu
  • Patent number: 8890793
    Abstract: Embodiments of methods, systems, or apparatuses relating to adjusting a brightness level of at least a portion of a backlight of a display device based, at least in part, on one or more measurements of ambient light values.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 18, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute, Co. Ltd.
    Inventors: Zhang Wei, Min Chen, Tsai Chen Jung
  • Patent number: 8879640
    Abstract: A computer processor implementable method of decoding low-density parity-check (LDPC) code, comprising: receiving a log-likelihood-ratio (LLR) input bitstream; performing a combined bit-deinterleaving and reordering process on the LLR input bitstream and storing in a physical memory space, comprising: determining a logical memory address for each LLR bit in the LLR input bitstream, determining a physical memory address for each LLR bit in the LLR input bitstream from logical memory address of the LLR bit; decoding the LLR input bitstream stored in the physical memory space; and performing a combined de-reordering and de-mapping process on the decoded LLR input bitstream.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 4, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Felix Chow, Chun Hang Lee
  • Patent number: 8879060
    Abstract: A Raman signal detection and analyzing system and a method thereof are disclosed. The Raman signal is generated by emitting an excitation light to a sample. The Raman signal is then modulated by passing through a plurality of optical filter and modulator. The resulting modulated Raman signal comprises two orthogonal components, which intensities are to be computed based on the first harmonic of said modulated Raman signal. The content of a specific analyte within the sample can then be determined based on the ratio of the intensities of the two components.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: November 4, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Ka Cheung Kwok, Lut Hey Chu, Chun Zhang, Lap Wai Lydia Leung
  • Publication number: 20140323886
    Abstract: This invention discloses a pulse-sensing device and methods for pulse sensing. In one embodiment, the device includes a robotic finger comprising a humanoid-finger structure, and an actuating-force transferring member for transferring an actuating force to the structure at an actuation point thereon and along an actuation direction. One end of the structure is pivotally mounted to a fulcrum and another end has a sensing area. The robotic finger is configured such that, when the sensing area contacts a person's wrist, a first perpendicular distance from the fulcrum to a first line is substantially longer than a second perpendicular distance from the fulcrum to a second line, where the first line is a straight line passing through a sensing point of the sensing area and being substantially perpendicular to the sensing area, and the second line is a straight line passing through the actuation point and orienting along the actuation direction.
    Type: Application
    Filed: April 28, 2013
    Publication date: October 30, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventor: Hong Kong Applied Science and Technology Research Institute Company Limited
  • Publication number: 20140313582
    Abstract: The subject matter disclosed herein relates to an imaging module comprising an electromagnetic actuator to provide focus-related and image stabilization-related functionality.
    Type: Application
    Filed: September 26, 2013
    Publication date: October 23, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Kwok Sing Cheng, Kin Ming Fan
  • Patent number: 8864377
    Abstract: An on-chip temperature sensor circuit can be implemented in a standard complementary metal-oxide-semiconductor (CMOS) process using PNP transistors. A pair of transistors have collector currents that are sensitive to voltage, both directly and due to saturation currents. A scaling resistor connects to the emitter of one transistor and its voltage compared to the other transistor's emitter voltage by an error amplifier that generates a bias voltage to current sources that are proportional to absolute temperature since the saturation current sensitivity is subtracted out. The current is mirrored to sink current through a multiplier resistor from an output. An amplifier connected across the multiplier resistor compares a reference voltage to set the DC bias independent of temperature sensitivity. The temperature sensitivity is proportional to the ratio of the multiplier resistor and the scaling resistor, and is multiplied by a mirroring factor. A differential output may also be provided.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: October 21, 2014
    Assignee: Hong Kong Applied Science & Technology Research Institute Company Limited
    Inventors: Chun Fai Wong, Leung Ling (Alan) Pun, Kam Hung Chan, Kwok Kuen (David) Kwong
  • Publication number: 20140293279
    Abstract: A Raman signal detection and analyzing system and a method thereof are disclosed. The Raman signal is generated by emitting an excitation light to a sample. The Raman signal is then modulated by passing through a plurality of optical filter and modulator. The resulting modulated Raman signal comprises two orthogonal components, which intensities are to be computed based on the first harmonic of said modulated Raman signal. The content of a specific analyte within the sample can then be determined based on the ratio of the intensities of the two components.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 2, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventor: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
  • Patent number: 8847702
    Abstract: Systems and methods which utilizes a stub array microstrip line for providing a phase shifter configuration are shown. A stub array microstrip line phase shifter of embodiments may comprises a microstrip line structure, an isolation structure, and a phase tuning structure cooperative to provide phase shifting of signals passed through the microstrip line structure. A microstrip line structure comprises a stub array microstrip line having a plurality of microstrip stubs provided in association with a slotted ground plane having a plurality of slots. The stub array microstrip line is adapted to provide compensation for capacitance and/or inductance associated with the slots of the slotted ground plane. A phase tuning structure provides coupling of signals transmitted by the stub array microstrip line to the slots of the slotted ground plane for signal phase shifting.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: September 30, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Hau Wah Lai, Angus C. K. Mak, Corbett R. Rowell
  • Patent number: 8847142
    Abstract: An optical system for light energy concentration may comprise a light concentrator to convert incident light to converging light, a light collimating element to receive the converging light and to reduce an angle of convergence of the converging light, and a light directing element to direct the reduced-angle converging light to a light guide to transmit the directed light.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: September 30, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute, Co. Ltd.
    Inventors: Wei Zhou, Ming Lu, Xuyan Huang
  • Publication number: 20140289591
    Abstract: A computer processor implementable method of decoding low-density parity-check (LDPC) code, comprising: receiving a log-likelihood-ratio (LLR) input bitstream; performing a combined bit-deinterleaving and reordering process on the LLR input bitstream and storing in a physical memory space, comprising: determining a logical memory address for each LLR bit in the LLR input bitstream, determining a physical memory address for each LLR bit in the LLR input bitstream from logical memory address of the LLR bit; decoding the LLR input bitstream stored in the physical memory space; and performing a combined de-reordering and de-mapping process on the decoded LLR input bitstream.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Felix CHOW, Chun Hang LEE
  • Patent number: 8837312
    Abstract: Bias introduced by down-sampling may be eliminated, or significantly reduced, by the present embodiments. Methods and apparatuses are described for use in wireless communication systems including LTE and other mobile data systems. The method includes identifying a timing offset estimation bias caused by a misalignment between samples and a zero-offset point of a preamble signature.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 16, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Wing Chau Chan, Jun Xu
  • Publication number: 20140254028
    Abstract: The subject matter disclosed herein relates to an optical module that includes a mechanical structure to adjust a zoom level or focus of the optical module.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventor: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
  • Patent number: 8831150
    Abstract: This invention discloses a method and an apparatus for reducing false alarm rate in preamble detection due to discontinuities between successive symbols in a received signal. The invention is usable in, e.g., a LTE compliant system. In one embodiment, the apparatus includes a filter for filtering the received signal to yield a filtered signal, and a correlator for correlating the filtered signal with a predetermined preamble. The apparatus further comprises a first multiplier for modifying the received signal before it is filtered, or a second multiplier for modifying the filtered signal before it is correlated, or both. The first multiplier multiplies the received signal with a first time-domain window function configured to substantially smooth discontinuities at symbol boundaries in the received signal. The second multiplier multiplies the filtered signal with a second time-domain window function configured to substantially suppress spikes present in the filtered signal around the symbol boundaries.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: September 9, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Jun Xu, Man Wai Kwan, Honglei Zhang, Peng Li, Kong Chau Tsang