Patents by Inventor Alexander Chan

Alexander Chan 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).

  • Publication number: 20140019080
    Abstract: A method and system for calibrating a wireless sensor device are disclosed. In a first aspect, the method comprises determining a vertical calibration vector and determining a rotation matrix using the vertical calibration vector to line up native axes of the wireless sensor device with body axes. In a second aspect, a wireless sensor device comprises a processor and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to determine a vertical calibration vector and to determine a rotation matrix using the vertical calibration vector to line up native axes of the wireless sensor device with body axes.
    Type: Application
    Filed: May 22, 2013
    Publication date: January 16, 2014
    Applicant: Vital Connect, Inc.
    Inventors: Alexander CHAN, Nima Ferdosi, Ravi Narasimhan
  • Patent number: 8614630
    Abstract: A method and system for fall detection using sensor fusion are disclosed. In a first aspect, the method comprises in response to any of first and second acceleration magnitude thresholds being satisfied, determining whether a height difference before and after impact of a fall satisfies a threshold and whether an angle threshold between an acceleration vector and a calibration vector is satisfied. In a second aspect, the system comprises a processing system and an application coupled to the processing system, wherein the application carries out the steps of the method.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: December 24, 2013
    Assignee: Vital Connect, Inc.
    Inventors: Ravi Narasimhan, Nima Ferdosi, Alexander Chan
  • Publication number: 20120012867
    Abstract: The present application provides a multi-dimensional light-emitting device electrically connected to a power supply system. The multi-dimensional light-emitting device comprises a substrate, a blue light-emitting diode array and one or more phosphor layers. The blue light-emitting diode array, disposed on the substrate, comprises a plurality of blue light-emitting diode chips which are electrically connected. The multi-dimensional light-emitting device comprises a central area and a plurality of peripheral areas, which are arranged around the central area. The phosphor layer covers the central area. When the power supply system provides a high voltage, the central area and the peripheral areas of the multi-dimensional light-emitting device provide a first light and a plurality of second lights, respectively. The first light and the second lights are blended into a mixed light.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 19, 2012
    Applicant: Epistar Corporation
    Inventors: Chien-Fu Shen, Schang-Jing Hon, Tsun-Kai Ko, Alexander Chan Wang, Min-Hsun Hsieh, Cheng Nan Han
  • Publication number: 20110157884
    Abstract: A light-emitting device includes an insulating carrier; a light-emitting array formed on the insulating carrier including a first light-emitting circuit having a first light-emitting unit, wherein the first light-emitting circuit is a one-way circuit, a second light-emitting circuit having a second light-emitting unit, wherein the second light-emitting circuit is a one-way circuit, a first conductive layer, a second conductive layer, and a third conductive layer, wherein the first light-emitting circuit is formed between the first conductive layer and the second conductive layer and connects with them electrically, the second light-emitting circuit is formed between the second conductive layer and the third conductive layer and connects with them electrically, wherein an area of the second conductive layer is greater or equal to 1.9×103 ?m2.
    Type: Application
    Filed: December 30, 2010
    Publication date: June 30, 2011
    Inventors: Chao-Hsing Chen, Alexander Chan Wang, Chia-Ling Hsu
  • Publication number: 20080205201
    Abstract: A time display apparatus is disclosed and comprises at least a housing, a timetable panel, three pointers and a backlight unit. The timetable panel is disposed in the housing. The three pointers are coated with variety of phosphorescence materials respectively and vertically arranged on the timetable panel in order. The backlight unit is disposed below the timetable panel to generate a light source with a fixed wavelength to illuminate the phosphorescence materials of the three pointers, thereby generating different colors for showing hour, minute and second respectively.
    Type: Application
    Filed: April 25, 2008
    Publication date: August 28, 2008
    Inventors: Hwa Su, Alexander Chan Wang
  • Publication number: 20080151562
    Abstract: The fabrication structure for light emitting diode component is disclosed. The fabrication structure of the present invention includes a substrate, a plurality of cavities, a plurality of selection units, a first and a second directional predetermined cut. The plurality of cavities are arranged and disposed on the substrate to form an M rows×N columns matrix array. M and N are respectively a positive integer. Each selection unit corresponds to each cavity. The first directional predetermined cut is disposed between the rows, and the second directional predetermined cut is disposed between the columns. The first directional predetermined cut and the second directional predetermined cut are utilized to divide the substrate according to the plurality of selection units to obtain a X rows×Y columns area from the M rows×N columns matrix array.
    Type: Application
    Filed: March 7, 2008
    Publication date: June 26, 2008
    Inventors: Hwa Su, Alexander Chan Wang
  • Publication number: 20060075580
    Abstract: A two step method of coloring hair is described. The hair is first contacted for a period of time with a dye precursor mixture containing an oxidative dye, specific fatty components and one or more water miscible organic solvents. Color is then developed in a second step by contacting the hair with one or more oxidizing agents. Greater color intensity and longevity are achieved when the fatty component in the dye precursor mixture contains at least one fatty amine and the fatty ingredients and organic solvents satisfy the relationship, ?FC<0.037(?OS)2?3.35(?OS)+63, where ?FC and ?OS are respectively the total weight of fatty ingredients and the total weight of water miscible organic solvents in the precursor mixture.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 13, 2006
    Inventors: Alexander Chan, Stella Arcella, John Bartolone
  • Publication number: 20050193501
    Abstract: The present invention relates to a 2-step methods, and compositions for providing more vibrant, natural and long-lasting color to hair and at the same time reducing hair fiber damage associated with alternative current methods. In the first step the hair is contacted for a period of time with a dye precursor mixture containing specific oxidative hair dye precursors under conditions where these dyes are substantially inactive. Color is then developed in a second step by contacting the hair with a mixture of a peroxide compound and a persulfate salt. Surprisingly the 2-step method leads to considerable “lift” or lightening without negatively impacting the coloring ability of the oxidative dye. The invention also relates to kits providing the means to accomplish these steps.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 8, 2005
    Inventors: Alexander Chan, Stella Arcella, John Bartolone, Allan Burger
  • Publication number: 20050000036
    Abstract: A sequential method for dyeing hair which comprises: contacting the hair with a substantially inactive dye precursor mixture containing at least one primary intermediate and an optional coupler for a period of time, followed by applying a means for aligning the hair and distributing the oxidative dye precursors uniformly, followed by contacting the hair with a developer mixture capable of oxidizing the hair dye precursors to react and form hair color molecules.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 6, 2005
    Inventors: Alexander Chan, Padmaja Prem, Katherine Jacobs-Dube, John Bartolone
  • Publication number: 20050000035
    Abstract: A sequential method for dyeing hair which comprises: contacting the hair with a substantially inactive dye precursor mixture containing at least one primary intermediate and an optional coupler having at least 50% of the molecules comprising these precursors are in their non-anionic form, for a period of time, followed by contacting the hair with a developer mixture capable of oxidizing the hair dye precursors to react and form hair color molecules.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 6, 2005
    Inventors: Alexander Chan, Padmaja Prem, John Bartolone
  • Patent number: 6829116
    Abstract: The tape cartridge autoloader library system comprises at least one read/write tape drive, a tape cartridge picker, a single tape cartridge interface, and at least one pair of tape cartridge transport magazines within a compact form factor that fits into a standard library rack mount of cabinet. The autoloader/library system is a complete tape cartridge library that stores, manages, and automatically exchanges a plurality of tape cartridges between the tape drive unit, the single cartridge interface, and the tape cartridge transport magazines. The tape cartridge transport magazines are each configured to receive and store a plurality of individual tape cartridges in a horizontal relationship. The tape cartridge transport magazines also transport the individual tape cartridges within the tape cartridge transport magazine so that a specific one of the tape cartridges is in position for selection by the cartridge picker.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: December 7, 2004
    Assignee: Quantum Corporation
    Inventors: John C. Owens, Pat Eliot Collins, Ryan Stuart Porter, Peter A. Johnson, Alexander Chan, Kim M. Thomas, Christopher Lee Felton, David Ray Berry, Thua Nang Dai, Dominic John Maglia, Theodore James Oade, Scott Ryan Patterson, Gary Eugene Sadler, Sam Wen
  • Publication number: 20040053213
    Abstract: The present invention discloses a rapid and easily performed method for the determination of the presence or absence of bacteria in a sample. The method involves using polymerase chain reaction nucleic acid primers to amplify target microbial sequences and thereafter detecting the presence or absence of amplicons using microsphere agglutination.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 18, 2004
    Applicant: Avenir Genetics LLC
    Inventors: Clarence I. Kado, Shaw-Jye Wu, Alexander Chan
  • Patent number: 6693758
    Abstract: The tape cartridge transport magazine receives and stores tape cartridges in a horizontal orientation relative to the tape cartridge transport magazine to achieve a substantially smaller form factor. Once loaded into the magazine, the tape cartridges are shuffled in a vertical closed loop within the magazine so that any one of the tape cartridges can be positioned for selection by a cartridge picker. During shuffling within the magazine, individual tape cartridges are not flipped or reoriented, but remain properly oriented for selection by the cartridge picker. When used with a tape cartridge autoloader/library system as disclosed herein, a pair of interchangeable magazines can be utilized to store and provide tape cartridges for selection by a rotating cartridge picker.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: February 17, 2004
    Assignee: Quantum Corporation
    Inventors: Scott Ryan Patterson, Paddy Eliot Collins, Ryan Stuart Porter, Peter A. Johnson, Alexander Chan, Kim M. Thomas, Christopher Lee Felton, David Ray Berry, Thua Nang Dai, Dominic John Maglin, Theodore James Oade, Gary Eugene Sadler, Sam Wen, John C. Owens
  • Patent number: 6693759
    Abstract: A tape cartridge autoloader library system including at least one read/write tape drive, a tape cartridge picker, a single tape cartridge interface, and a pair of tape cartridge magazines within a compact form factor that fits into a standard library rack mount. The autoloader/library system is a complete tape cartridge library that stores, manages, and automatically exchanges a plurality of tape cartridges between the tape drive, the single cartridge interface, and the pair of tape cartridge magazines. The tape cartridge magazines are each configured to receive and store a plurality of individual tape cartridges in a horizontal relationship. The tape cartridge magazines transport the individual tape cartridges within the tape cartridge magazines so that an individual one of the tape cartridges is in position for selection by the cartridge picker.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 17, 2004
    Assignee: Quantum Corporation
    Inventors: John C. Owens, Paddy Eliot Collins, Ryan Stuart Porter, Peter A. Johnson, Alexander Chan, Kim M. Thomas, Christopher Lee Felton, David Ray Berry, Thua Nang Dai, Dominic John Maglia, Theodore James Oade, Scott Ryan Patterson, Gary Eugene Sadler, Sam Wen
  • Patent number: 6596035
    Abstract: A single composition for simultaneous coloring and highlighting hair to provide hair fibers having variations in tonality and hue, comprising, 1-10% inorganic persulfate, 1-20% hydrogen peroxide, 0.001-20% of at least one primary intermediate and, optionally, at least one coupler for the formation of oxidation dyes; and 0.01-20% of one or more surfactants; as well as a one step method for simultaneously color and highlighting hair to provide hair fibers having variations in tonality and hue comprising, combining, immediately prior to use, a powder composition comprised of at least one alkali metal or alkaline earth metal persulfate, an aqueous developer composition comprised of hydrogen peroxide; and an aqueous based colorant composition comprised of at least one primary intermediate and, optionally, at least one coupler for the formation of oxidation dyes; and applying the mixture to the hair for a period of time sufficient to cause coloration and highlighting of the hair.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: July 22, 2003
    Assignee: Revlon Consumer Products Corporation
    Inventors: Glen Alan Gutkowski, Alexander Chan, Shailendra Kumar Singh
  • Publication number: 20020057515
    Abstract: A tape cartridge autoloader library system including at least one read/write tape drive, a tape cartridge picker, a single tape cartridge interface, and a pair of tape cartridge magazines within a compact form factor that fits into a standard library rack mount. The autoloader/library system is a complete tape cartridge library that stores, manages, and automatically exchanges a plurality of tape cartridges between the tape drive, the single cartridge interface, and the pair of tape cartridge magazines. The tape cartridge magazines are each configured to receive and store a plurality of individual tape cartridges in a horizontal relationship. The tape cartridge magazines transport the individual tape cartridges within the tape cartridge magazines so that an individual one of the tape cartridges is in position for selection by the cartridge picker.
    Type: Application
    Filed: June 29, 2001
    Publication date: May 16, 2002
    Inventors: John C. Owens, Paddy Eliot Collins, Ryan Stuart Porter, Peter A. Johnson, Alexander Chan, Kim M. Thomas, Christopher Lee Felton, David Ray Berry, Thua Nang Dai, Dominic John Maglia, Theodore James Oade, Scott Ryan Patterson, Gary Eugene Sadler, Sam Wen
  • Publication number: 20020057514
    Abstract: The tape cartridge transport magazine receives and stores tape cartridges in a horizontal orientation relative to the tape cartridge transport magazine to achieve a substantially smaller form factor. Once loaded into the magazine, the tape cartridges are shuffled in a vertical closed loop within the magazine so that any one of the tape cartridges can be positioned for selection by a cartridge picker. During shuffling within the magazine, individual tape cartridges are not flipped or reoriented, but remain properly oriented for selection by the cartridge picker. When used with a tape cartridge autoloader/library system as disclosed herein, a pair of interchangeable magazines can be utilized to store and provide tape cartridges for selection by a rotating cartridge picker.
    Type: Application
    Filed: June 27, 2001
    Publication date: May 16, 2002
    Inventors: Scott Ryan Patterson, Paddy Eliot Collins, Ryan Stuart Porter, Peter A. Johnson, Alexander Chan, Kim M. Thomas, Christopher Lee Felton, David Ray Berry, Thua Nang Dai, Dominic John Maglin, Theodore James Oade, Gary Eugene Sadler, Sam Wen, John C. Owens
  • Publication number: 20010039685
    Abstract: A single composition for simultaneous coloring and highlighting hair to provide hair fibers having variations in tonality and hue, comprising, 1-10% inorganic persulfate, 1-20% hydrogen peroxide, 0.001-20% of at least one primary intermediate and, optionally, at least one coupler for the formation of oxidation dyes; and 0.01-20% of one or more surfactants; as well as a one step method for simultaneously color and highlighting hair to provide hair fibers having variations in tonality and hue comprising, combining, immediately prior to use, a powder composition comprised of at least one alkali metal or alkaline earth metal persulfate, an aqueous developer composition comprised of hydrogen peroxide; and an aqueous based colorant composition comprised of at least one primary intermediate and, optionally, at least one coupler for the formation of oxidation dyes; and applying the mixture to the hair for a period of time sufficient to cause coloration and highlighting of the hair.
    Type: Application
    Filed: April 30, 2001
    Publication date: November 15, 2001
    Applicant: Revlon Consumer Products Corporation
    Inventors: Glen Alan Gutkowski, Alexander Chan, Shailendra Kumar Singh
  • Patent number: 6297949
    Abstract: A recessed bezel and corresponding assembly are provided for internally mounting a data storage device in a computer system housing. The recessed bezel allows the removable data storage medium to be inserted into the data storage device to a loaded position, such that none of the removable data storage medium protrudes outwardly from the computer system housing.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: October 2, 2001
    Assignee: Seagate Removable Storage Solutions LLC
    Inventors: Ashok B. Nayak, Walter Fehlmann, Alexander Chan
  • Patent number: D631019
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: January 18, 2011
    Assignee: Epistar Corporation
    Inventors: Alexander Chan Wang, Chia-Liang Hsu, Pang-Yen Liu