Patents by Inventor Fei Wong

Fei Wong 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: 20150065910
    Abstract: The present invention relates to the use of electrochemistry to control and generate specific user defined chemical reactions in regions that may be defined by electrode placement and geometry. In one embodiment, the present invention provides a method of shape changing cartilage in a subject through potential-driven electrochemical modification of tissue (PDEMT) or use of a potential-driven electromechanical (EMR) device.
    Type: Application
    Filed: May 16, 2014
    Publication date: March 5, 2015
    Applicant: REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Brian Jet-Fei Wong, Michael G. Hill, Dmitry E. Protsenko
  • Publication number: 20150031565
    Abstract: A method of genotyping single nucleotide polymorphisms (“SNP”) and point mutations in nucleic acid based on chain extension by polymerase. This invention is based on the fact that the neighboring sequence immediately 3? adjacent to the site is known, and the nucleoside immediately 5? adjacent to any SNP/point mutation site is also known. An extension primer complementary to the sequence directly adjacent to the SNP on the 3? side of a target polynucleotide is used for chain extension. Up to four different polymerase reaction mixtures are provided in separate reaction containers, each containing one different potentially chain-extending Bridging Nucleotide. A Reporting Nucleotide having a base complementary to the nucleotide directly adjacent to the SNP on the 5? side of the target polynucleotide may also be added to each reaction container.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventors: Hong Xue, Jeffrey Tze-Fei Wong
  • Patent number: 8847144
    Abstract: An optical encoder and optical encoding system are disclosed. Specifically, an encoder having a light detector elevated relative to a light source is described. The relative height difference between the light source and the light detector enables the optical encoder to minimize noise at the light detector without requiring a separate light baffle between the light source and light detector. Methods of manufacturing and operating such an encoder are also described.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 30, 2014
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Yik-Foong Soo, Weng Fei Wong, Wee Jin Yeap
  • Patent number: 8525102
    Abstract: An optical encoder is disclosed. Specifically, a three-channel encoder is disclosed which utilizes a single track for all three channels. An index channel is provided on the same optical track as the first and second channels which are used to determine incremental angular position. Thus, a more compact and simple three-channel encoder is provided.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: September 3, 2013
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Marcin Augustyniak, Weng Fei Wong, Cheng Kwong Cheang
  • Publication number: 20130161887
    Abstract: The present invention relates to a shock absorbing device (100) for mating an integrated deck to a jacket leg (51), characterized by: a hollow constraining cylinder (10) having a bottom closure (11), connected to the top of the jacket leg (51); an elastomer module (20) provided in the hollow constraining cylinder (10), wherein inner diameter of the hollow constraining cylinder (10) is larger than outer diameter of the elastomer module (20) thereby forming an annular space; a plurality of reinforcing plates (30) embedded within the elastomer module (20), vertically spaced apart from each other; a protective assembly comprising a elastomeric cap (41) and a minimum of one protective ring (42) mounted to the elastomeric cap (41); wherein during mating of the integrated deck to jacket leg (51), a support column (52) of the integrated deck abuts on the protective assembly and compresses the elastomer module (20) to secure the connection of the integrated deck to the jacket leg (51).
    Type: Application
    Filed: June 27, 2012
    Publication date: June 27, 2013
    Applicant: Lembaga Getah Malaysia (Malaysian Rubber Board)
    Inventors: Kamarudin Ab Malek, Ismaliza Ismail, Hon Fei Wong, Shamsul Kamaruddin
  • Publication number: 20130037705
    Abstract: An optical encoder and optical encoding system are disclosed. Specifically, an encoder having a light detector elevated relative to a light source is described. The relative height difference between the light source and the light detector enables the optical encoder to minimize noise at the light detector without requiring a separate light baffle between the light source and light detector. Methods of manufacturing and operating such an encoder are also described.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 14, 2013
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Yik-Foong Soo, Weng Fei Wong, Wee Jin Yeap
  • Patent number: 8247758
    Abstract: A user navigational apparatus. The user navigational apparatus includes a dial, a coding element, and an encoder. The coding element is coupled to a dial. The coding element includes a track of alternating reflective and non-reflective sections, each having a substantially oblique leading edge relative to a direction of movement of the coding element. The encoder includes an emitter and a detector. The emitter generates a light signal incident on the track of the coding element. The detector detects a reflected light signal which corresponds to a portion of the incident light signal that is reflected off of the reflective sections of the track. The detector also generates a channel signal corresponding to the reflected light signal.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: August 21, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Chee Foo Lum, Weng Fei Wong, Siang Leong Foo, Timothy James Orsley
  • Publication number: 20120205528
    Abstract: An optical encoder is disclosed. Specifically, a three-channel encoder is disclosed which utilizes a single track for all three channels. An index channel is provided on the same optical track as the first and second channels which are used to determine incremental angular position. Thus, a more compact and simple three-channel encoder is provided.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 16, 2012
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Marcin Augustyniak, Weng Fei Wong, Cheng Kwong Cheang
  • Patent number: 8212202
    Abstract: Disclosed are various embodiments of a reflective optical encoder package having a light emitter and a light detector disposed on an integrated circuit having an optically transparent glass layer disposed thereover. The package can be manufactured without resort to wirebonding techniques and instead can be made using wafer level packaging methods and materials. The package can also be made of lower profile or smaller footprint than many conventional optical encoder packages, and may be employed to sense or detect rotary or linear motion.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: July 3, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Weng Fei Wong, Cheng Kwong Cheang
  • Patent number: 8193483
    Abstract: Disclosed are various embodiments of high-speed, high-performance, low-noise optical encoders having various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Also disclosed are compact single track optical encoders having a single dome lens disposed thereover, and dual track triple dome lens optical encoders. Methods of making such optical encoders are also disclosed.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: June 5, 2012
    Inventors: Yee Loong Chin, Weng Fei Wong, Wee Jin Yeap, Cheng Kwong Cheang
  • Patent number: 8068040
    Abstract: A sensor head for sensing light modulated by a moveable member, such as a code wheel or code strip, in an optical encoder. The sensor head has at least one monitor optical sensor and a primary optical sensor positioned to receive light modulated by a modulation track on the moveable member. The monitor optical sensor provides a monitor signal that is compared in a signal comparator to the output from the primary optical sensor to detect light at the primary sensor.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 29, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Weng Fei Wong, Chee Foo Lum, Siow Ming Tan
  • Patent number: 8063355
    Abstract: Disclosed herein are a number of different embodiments of reflective multi-turn optical encoders with different light sensing systems. Three different basic configurations of reflective multi-turn optical encoder light sensing systems are disclosed herein: (a) optical encoders employing multiple arrays of light detectors; (b) optical encoders employing multiple arrays of stacked die light sensors, and (c) optical encoders employing variable tone density light sensing systems.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: November 22, 2011
    Assignee: Avago Technologies Limited
    Inventors: Sze Kuang Lee, Yee Loong Chin, Weng Fei Wong
  • Publication number: 20110207578
    Abstract: Various embodiments of harmonic gear multi-turn encoders are disclosed that provide the ability to accurately sense absolute rotational positions over a wide range of rotational counts. High gear reduction ratios in each stage of the multi-turn encoders permit very small size and volume encoders to be provided, thereby opening up many new applications for multi-turn encoders. In one embodiment, inductive means are employed to determine the number of revolutions a central shaft operably connected to an encoder module has turned. The inductive coils comprise emitter coils and receiver coils, which are operably associated with and opposed to corresponding encoder devices. The various embodiments of the harmonic gear multi-turn encoders disclosed herein are capable of operating under high temperature conditions and withstanding the effects of various environmental contaminants, and are also amenable to miniaturization and low cost manufacturing.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 25, 2011
    Applicant: Avago Technologies ECBU (Singapore) Pte, Ltd.
    Inventors: Sze Kuang Lee, Weng Fei Wong
  • Publication number: 20100314532
    Abstract: Disclosed are various embodiments of high-speed, high-performance, low-noise optical encoders having various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Also disclosed are compact single track optical encoders having a single dome lens disposed thereover, and dual track triple dome lens optical encoders. Methods of making such optical encoders are also disclosed.
    Type: Application
    Filed: August 23, 2010
    Publication date: December 16, 2010
    Applicant: Avago Technologies ECBU (Singapore) Pte. Ltd.
    Inventors: Yee Loong Chin, Weng Fei Wong, Wee Jin Yeap, Cheng Kwong Cheang
  • Patent number: 7795576
    Abstract: Disclosed are various embodiments of high-speed, high-performance, low-noise optical encoders having various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Also disclosed are compact single track optical encoders having a single dome lens disposed thereover, and dual track triple dome lens optical encoders. Methods of making such optical encoders are also disclosed.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: September 14, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Yee Loong Chin, Weng Fei Wong, Wee Jin Yeap, Cheng Kwong Cheang
  • Publication number: 20100171029
    Abstract: Disclosed herein are a number of different embodiments of reflective multi-turn optical encoders with different light sensing systems. Three different basic configurations of reflective multi-turn optical encoder light sensing systems are disclosed herein: (a) optical encoders employing multiple arrays of light detectors; (b) optical encoders employing multiple arrays of stacked die light sensors, and (c) optical encoders employing variable tone density light sensing systems.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 8, 2010
    Applicant: Avago Technologies ECBU (Singapore) Pte. Ltd.
    Inventors: Sze Kuang Lee, Weng Fei Wong, Yee Loong Chin
  • Publication number: 20100171028
    Abstract: Disclosed are various embodiments of a reflective optical encoder package having a light emitter and a light detector disposed on an integrated circuit having an optically transparent glass layer disposed thereover. The package can be manufactured without resort to wirebonding techniques and instead can be made using wafer level packaging methods and materials. The package can also be made of lower profile or smaller footprint than many conventional optical encoder packages, and may be employed to sense or detect rotary or linear motion.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 8, 2010
    Applicant: Avago Technologies ECBU (Singapore) Pte. Ltd.
    Inventors: Weng Fei Wong, Cheng Kwong Cheang
  • Publication number: 20100155586
    Abstract: Disclosed are various embodiments of high-speed, high-performance, low-noise optical encoders having various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Also disclosed are compact single track optical encoders having a single dome lens disposed thereover, and dual track triple dome lens optical encoders. Methods of making such optical encoders are also disclosed.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Applicant: Avago Technologies ECBU (Singapore) Pte. Ltd.
    Inventors: Yee Loong Chin, Weng Fei Wong, Wee Jin Yeap, Cheng Kwong Cheang
  • Patent number: 7732756
    Abstract: A user navigational apparatus. The user navigational apparatus includes a code wheel and an encoder. The code wheel is coupled to a dial. The code wheel includes a track of alternating reflective and non-reflective sections. The optical reflective encoder includes an emitter and a detector. The emitter generates a light signal incident on the track of the code wheel. The detector detects a reflected light signal. The reflected light signal corresponds to a portion of the incident light signal that is reflected off of the reflective sections of the track. The detector also generates a channel signal corresponding to the reflected light signal. Embodiments of this type of user navigational apparatus achieve reduced thickness compared to conventional implementations of jog wheels.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: June 8, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Chee Foo Lum, Weng Fei Wong, Siang Leong Foo
  • Publication number: 20100127162
    Abstract: A user navigational apparatus. The user navigational apparatus includes a dial, a coding element, and an encoder. The coding element is coupled to a dial. The coding element includes a track of alternating reflective and non-reflective sections, each having a substantially oblique leading edge relative to a direction of movement of the coding element. The encoder includes an emitter and a detector. The emitter generates a light signal incident on the track of the coding element. The detector detects a reflected light signal which corresponds to a portion of the incident light signal that is reflected off of the reflective sections of the track. The detector also generates a channel signal corresponding to the reflected light signal.
    Type: Application
    Filed: January 27, 2010
    Publication date: May 27, 2010
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Chee Foo Lum, Weng Fei Wong, Siang Leong Foo, Timothy James Orsley