Patents by Inventor Liqun Larry Wang

Liqun Larry Wang 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: 20130182916
    Abstract: A method, apparatus, and system for a custom electronic hardware for iris pattern matching in a mobile device. In one embodiment, a method of a custom hardware solution that includes a change in the CPU clock frequency dependency by using programmable logic and a highly parallel array of high capacity flash memory is shown.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Inventors: STEVE FIELDING, LIQUN LARRY WANG
  • Patent number: 8093092
    Abstract: A low-cost wafer-level packaging (WLP) method for attaching glass to optical image-sensor devices on a semiconductor wafer in order to increase the yield of image-sensor modules during later steps of assembly. One embodiment relates to applications with image-sensors (and microlenses) fabricated on a wafer. A glass wafer is singulated, aligned to mirror the die pattern on an image-sensor wafer, and then bonded to the image-sensor wafer such that optical adhesive forms a layer between the each image-sensor and its glass cover. Another embodiment applies cavity walls to singulated glass covers, which are then attached to image sensors which may be formed on a single wafer. The wafer can then be singulated and a plurality of image sensor packages is formed.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: January 10, 2012
    Assignee: Flextronics AP, LLC
    Inventors: Harpuneet Singh, Liqun Larry Wang, Tic Medina
  • Publication number: 20100105160
    Abstract: A low-cost wafer-level packaging (WLP) method for attaching glass to optical image-sensor devices on a semiconductor wafer in order to increase the yield of image-sensor modules during later steps of assembly. One embodiment relates to applications with image-sensors (and microlenses) fabricated on a wafer. A glass wafer is singulated, aligned to mirror the die pattern on an image-sensor wafer, and then bonded to the image-sensor wafer such that optical adhesive forms a layer between the each image-sensor and its glass cover. Another embodiment applies cavity walls to singulated glass covers, which are then attached to image sensors which may be formed on a single wafer. The wafer can then be singulated and a plurality of image sensor packages is formed.
    Type: Application
    Filed: July 14, 2009
    Publication date: April 29, 2010
    Inventors: Harpuneet Singh, Liqun Larry Wang, Tic Medina
  • Patent number: 6580881
    Abstract: Waste toner is detected in a container of an image forming apparatus. An auger is provided within the container. A switch is provided which is operable depending upon a torque associated with operation of the auger. A frequency of activation of the switch is detected. A “not full”, “near full” and “full” condition of the waste toner in the container is determined depending upon the frequency of activation of the switch.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: June 17, 2003
    Assignee: Lexmark International, Inc.
    Inventors: Matthew Christopher Coriale, Jonathan Carey Frey, Harald Portig, John Parker Richey, Wen-hsiung Adam Tseng, Liqun Larry Wang
  • Patent number: 6553195
    Abstract: An end seal for use in an electrophotographic image forming apparatus uses an array of ridges (or grooves) to urge toner inwardly so as to help prevent toner escape. The end seal works in conjunction with a cleaning blade. The end seal includes a blade pocket for mating with the end portions of the cleaning blade and a middle portion having an array of ridges thereon. The ridges are angled inward to urge any toner trapped therebetween inward away from the end seals, where the toner can be directed to a waste reservoir in a normal fashion. This “snowplowing” action of the ridges helps prevent outward migration of toner, thereby minimizing toner escape. The end seal may be composed of two or more layers of differing materials. There may be an end seal at each end of the cleaner blade.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: April 22, 2003
    Inventors: Kurt Matthew Korfhage, Michael David Maul, Alexander Douglas Meade, Tom E Stickler, Liqun Larry Wang
  • Publication number: 20030068167
    Abstract: Waste toner is detected in a container of an image forming apparatus. An auger is provided within the container. A switch is provided which is operable depending upon a torque associated with operation of the auger. A frequency of activation of the switch is detected. A “not full”, “near full” and “full” condition of the waste toner in the container is determined depending upon the frequency of activation of the switch.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Inventors: Matthew Christopher Coriale, Jonathan Carey Frey, Harald Portig, John Parker Richey, Wen-Hsiung Adam Tseng, Liqun Larry Wang
  • Patent number: 6546225
    Abstract: A waste toner container and auger therefor. Auger flights have a continuously decreasing flight pitch from the front of the auger to the back of the auger. The auger includes a flightless portion near the back wall of the container.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: April 8, 2003
    Assignee: Lexmark International, Inc.
    Inventor: Liqun Larry Wang
  • Publication number: 20030059227
    Abstract: An end seal for use in an electrophotographic image forming apparatus uses an array of ridges (or grooves) to urge toner inwardly so as to help prevent toner escape. The end seal works in conjunction with a cleaning blade. The end seal includes a blade pocket for mating with the end portions of the cleaning blade and a middle portion having an array of ridges thereon. The ridges are angled inward to urge any toner trapped therebetween inward away from the end seals, where the toner can be directed to a waste reservoir in a normal fashion. This “snowplowing” action of the ridges helps prevent outward migration of toner, thereby minimizing toner escape. The end seal may be composed of two or more layers of differing materials. There may be an end seal at each end of the cleaner blade.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 27, 2003
    Inventors: Kurt Matthew Korfhage, Michael David Maul, Alexander Douglas Meade, Tom E. Stickler, Liqun Larry Wang
  • Patent number: 6463254
    Abstract: A toner cleaning apparatus for a printing device includes a toner separator operating against a component of the printing device, to dislodge toner particles therefrom. A toner receptacle is provided for collecting the dislodged toner particles, and an auger positively conveys the dislodged toner particles into the toner receptacle. A vibration plate is provided for receiving the toner particles dislodged by the toner separator, and for directing the dislodged toner particles to the auger. The vibration plate includes lengths thereof extending into the auger and deflected by the auger to induce vibrations along the plate and distribute-and convey toner particles disposed thereon.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: October 8, 2002
    Assignee: Lexmark International, Inc.
    Inventors: Michael David Maul, Alexander Douglas Meade, Liqun Larry Wang
  • Publication number: 20020114651
    Abstract: A waste toner container and auger therefor. Auger flights have a continuously decreasing flight pitch from the front of the auger to the back of the auger. The auger includes a flightless portion near the back wall of the container.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 22, 2002
    Inventor: Liqun Larry Wang