Patents by Inventor Lewis Leung

Lewis Leung 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).

  • Patent number: 7313300
    Abstract: A coaxial optical component and method of packaging and manufacturing a coaxial optical component. A dual fiber collimator is formed from a dual fiber pigtail and a collimating lens. The dual fiber pigtail and the collimating lens are adequately aligned such that the optical loss is minimized. Spacers are placed around the dual fiber collimator and epoxy is placed between the spacers and around the dual fiber collimator. The dual fiber collimator and the spacers are inserted in one end of a metal housing and aligned before the epoxy is cured. The spacers thus position the dual fiber collimator within the housing while separating the dual fiber collimator from the housing. The metal housing includes an extended portion adapted to receive another optical element for use with the dual fiber pigtail. Alternatively, the dual fiber collimator is replaced with a different optical element and secured within the metal housing.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: December 25, 2007
    Assignee: Finisar Corporation
    Inventors: David Pin, Johnny Zhong, Steve Wang, Yin Zhang, Lewis Leung
  • Publication number: 20070073904
    Abstract: A multimedia program type of a received multimedia data is determined. Based on the determined multimedia program type, a peak bit rate limit and/or an average bit rate limit are determined. In instances where a transrated version of the multimedia data is to be stored, a remaining storage capacity of a storage device is determined and the peak bit rate limit and/or the average bit rate limit can be adjusted based on the remaining storage capacity. The multimedia data then is transrated to generate transrated multimedia data that has a peak bit rate that does not exceed the selected peak bit rate limit and/or having an average bit rate that does not exceed the selected average bit rate limit. The transrating of the multimedia additionally can include the application of rule sets based on content characteristics. After transrating, the multimedia data can be transmitted via a network to a destination multimedia device, stored locally for subsequent use, or a combination thereof.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 29, 2007
    Applicant: ViXS Systems, Inc.
    Inventors: Lewis Leung, Indra Laksono
  • Patent number: 6830934
    Abstract: A medical diagnostic device has a non-absorbent substrate that has a hydrophilic target area on which a reagent is deposited by non-impact printing of microdroplets. During deposition, the device is moved relative to the stream of microdroplets to form a substantially uniform reagent layer on the substrate. The device is particularly well adapted for measuring blood coagulation times. In a preferred embodiment, coagulation times are determined by monitoring the optical transmission of light through the target area as an applied blood sample interacts with the reagent.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: December 14, 2004
    Assignee: LifeScan, Inc.
    Inventors: Ian A. Harding, Robert Justice Shartle, Glenn Renowitzky, Lewis Leung
  • Patent number: 6653145
    Abstract: A medical diagnostic device has a non-absorbent substrate that has a hydrophilic target area on which a reagent is deposited by non-impact printing of microdroplets. During deposition, the device is moved relative to the stream of microdroplets to form a substantially uniform reagent layer on the substrate. The device is particularly well adapted for measuring blood coagulation times. In a preferred embodiment, coagulation times are determined by monitoring the optical transmission of light through the target area as an applied blood sample interacts with the reagent.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: November 25, 2003
    Assignee: LifeScan, Inc.
    Inventors: Ian A. Harding, Robert Justice Shartle, Glenn Renowitzky, Lewis Leung
  • Publication number: 20030210287
    Abstract: A medical diagnostic device has a non-absorbent substrate that has a hydrophilic target area on which a reagent is deposited by non-impact printing of microdroplets. During deposition, the device is moved relative to the stream of microdroplets to form a substantially uniform reagent layer on the substrate. The device is particularly well adapted for measuring blood coagulation times. In a preferred embodiment, coagulation times are determined by monitoring the optical transmission of light through the target area as an applied blood sample interacts with the reagent.
    Type: Application
    Filed: June 13, 2003
    Publication date: November 13, 2003
    Inventors: Ian A. Harding, Robert Justice Shartle, Glen Renowitzky, Lewis Leung