Patents by Inventor Ak Wing Leong

Ak Wing Leong 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: 8232966
    Abstract: An optical navigation system with optical imaging of multiple inputs using a single navigation sensor. The optical navigation system includes a tactile interface device, an image sensor, and a processor. The tactile interface device facilitates a navigation input. The image sensor intermittently generates images of a surface of the tactile interface device and images of a contact navigation surface. The image sensor also generates the images of the surface of the tactile interface device exclusive of the images of the contact navigation surface. The processor is coupled to the image sensor. The processor generates a first navigation signal based on the images of the tactile interface device and generates a second navigation signal based on the images of the contact navigation surface.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: July 31, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Chiang Sun Cheah, Ak Wing Leong, Yee Loong Chin
  • Patent number: 7977692
    Abstract: A method and apparatus is described for a light-emitting diode with high light output. A polymeric cup to reflect light holds a light-emitting diode chip connected to surface-mounting leads and is filled with an optically clear filter. The use of a polymeric cup allows for better bonding between the cup and the filler.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: July 12, 2011
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Ak Wing Leong, Kheng Leng Tan
  • Patent number: 7701565
    Abstract: An optical navigation system having an illuminator housing and a sensor housing that are movably connected at a connection point with a connection mechanism, which may include a pivot. The illuminator housing and the sensor housing may be rotated about the connection point relative to each other so that the optical navigation system may be configured with a desired operating Z-height. The optical navigation system may also include a locking mechanism to lock the illuminator housing and the sensor housing in a predetermined fixed position after the desired operating Z-height has been selected.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: April 20, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Chiang Sun Cheah, Chin Heong Yeoh, Ak Wing Leong
  • Patent number: 7639509
    Abstract: The present invention is directed to a dimensionally-stable electronic device such as an LED on flexible printed-circuit-board. The device comprises an electrically-conductive flexible substrate and at least one stabilizing component for dimensionally stabilizing the substrate.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: December 29, 2009
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Tong Fatt Chew, Ak Wing Leong
  • Publication number: 20090295718
    Abstract: An optical navigation system with optical imaging of multiple inputs using a single navigation sensor. The optical navigation system includes a tactile interface device, an image sensor, and a processor. The tactile interface device facilitates a navigation input. The image sensor intermittently generates images of a surface of the tactile interface device and images of a contact navigation surface. The image sensor also generates the images of the surface of the tactile interface device exclusive of the images of the contact navigation surface. The processor is coupled to the image sensor. The processor generates a first navigation signal based on the images of the tactile interface device and generates a second navigation signal based on the images of the contact navigation surface.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Chiang Sun Cheah, Ak Wing Leong, Yee Loong Chin
  • Patent number: 7473889
    Abstract: An optical device and method for making the same is disclosed. The device includes having a circuit element that is located in an opaque enclosure. The circuit element includes a die having an optical integrated circuit mounted on a carrier. The carrier includes a plurality of conductors connected to the optical integrated circuit. The opaque enclosure has a transparent window therein. The carrier is positioned in the enclosure such that light entering the enclosure through the window illuminates the die. The enclosure further includes an aperture through which the conductors protrude from the enclosure. The enclosure is at least partially filled with a layer of optically transparent material that passes light utilized or generated by said optical integrated circuit. The enclosure can be preformed to a higher degree of precision than that obtainable on conventional packaging fabrication lines.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: January 6, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Poh-Huat Lye, Ak-Wing Leong
  • Patent number: 7358958
    Abstract: An optical tracking assembly for an optical mouse includes a light source, an optical sensor chip, and an integral optics assembly. The integral optics assembly includes lenses and alignment features receiving the light source. The alignment features center the light source to the lenses and control a distance the light source is placed away from a navigation surface that reflects light onto the optical sensor chip. The lenses may include (1) collimating lenses for collimating light from the light source along a first optical axis to the navigation surface, and (2) imaging lenses for imaging reflected light from the navigation surface along a second optical axis to the optical sensor chip.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: April 15, 2008
    Assignee: Avago Technologies ECBU IP Pte Ltd
    Inventors: Paul M. Welch, Sai-Mun Lee, Gurbir Singh A/L Balwant Singh, Ak-Wing Leong
  • Publication number: 20070269915
    Abstract: A New Moisture-Resistant LED Device with Ceramic Substrate is disclosed. The Moisture-Resistant LED Device with Ceramic Substrate includes a ceramic substrate having a concave cavity, a light emitting diode (“LED”) in the concave cavity, a filler body over the LED, and a window sealed at an interface with the ceramic substrate.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 22, 2007
    Inventors: Ak Wing Leong, Kee Yean Ng, Tajul Arosh Baroky
  • Publication number: 20060131477
    Abstract: An optical device and method for making the same is disclosed. The device includes having a circuit element that is located in an opaque enclosure. The circuit element includes a die having an optical integrated circuit mounted on a carrier. The carrier includes a plurality of conductors connected to the optical integrated circuit. The opaque enclosure has a transparent window therein. The carrier is positioned in the enclosure such that light entering the enclosure through the window illuminates the die. The enclosure further includes an aperture through which the conductors protrude from the enclosure. The enclosure is at least partially filled with a layer of optically transparent material that passes light utilized or generated by said optical integrated circuit. The enclosure can be preformed to a higher degree of precision than that obtainable on conventional packaging fabrication lines.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 22, 2006
    Inventors: Poh-Huat Lye, Ak-Wing Leong
  • Patent number: 7045775
    Abstract: An optical navigation sensor apparatus for an optical mouse includes an optical navigation sensor having an electronic chip, an aperture plate and an imaging lens integrated into a single package. The imaging lens includes a lens housing surrounding the aperture and providing a barrier to the entry of foreign matter into the aperture. In one form, the optical navigation sensor also includes a light emitting diode (LED) for illuminating a small area of a surface under the sensor and generating a reflected image that is detected by the electronic chip. In a sensor having an integral LED, an integral collimating lens is included for receiving light from the LED and focusing the light from the LED on the surface to be illuminated. The collimating lens is incorporated into a lens housing surrounding the LED and protecting the LED from exposure to foreign material.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: May 16, 2006
    Assignee: Avago Technologies, Ltd.
    Inventors: Ak Wing Leong, Gurbir Singh, Poh Huat Lye, Sai Mun Lee
  • Patent number: 6967321
    Abstract: An optical navigation sensor apparatus for an optical mouse includes an optical navigation sensor having an electronic chip, an aperture plate and an imaging lens integrated into a single package. The imaging lens includes a lens housing surrounding the aperture and providing a barrier to the entry of foreign matter into the aperture. In one form, the optical navigation sensor also includes a light emitting diode (LED) for illuminating a small area of a surface under the sensor and generating a reflected image that is detected by the electronic chip. In a sensor having an integral LED, an integral collimating lens is included for receiving light from the LED and focusing the light from the LED on the surface to be illuminated. The collimating lens is incorporated into a lens housing surrounding the LED and protecting the LED from exposure to foreign material.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: November 22, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: Ak Wing Leong, Gurbir Singh, Poh Huat Lye, Sai Mun Lee
  • Publication number: 20050249449
    Abstract: An optical tracking assembly for an optical mouse includes a light source, an optical sensor chip, and an integral optics assembly. The integral optics assembly includes lenses and alignment features receiving the light source. The alignment features center the light source to the lenses and control a distance the light source is placed away from a navigation surface that reflects light onto the optical sensor chip. The lenses may include (1) collimating lenses for collimating light from the light source along a first optical axis to the navigation surface, and (2) imaging lenses for imaging reflected light from the navigation surface along a second optical axis to the optical sensor chip.
    Type: Application
    Filed: May 5, 2004
    Publication date: November 10, 2005
    Inventors: Paul Welch, Sai-Mun Lee, Gurbir Singh A/L Singh, Ak-Wing Leong
  • Patent number: 6929485
    Abstract: A lead frame includes pins for a plurality of parts. The pins for the plurality of the parts include first pins for a first part and first pins for a second part. The first pins for the first part include first shaped pins and second shaped pins. Each of the first shaped pins has a wide area of a first length, and a narrow area. Each of the second shaped pins has a wide area of a second length and a narrow area. The first length and the second length are not equal. The first pins for the first part are interdigitated with the first pins for the second part.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: August 16, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: Ak Wing Leong, Michael J. Brosnan
  • Publication number: 20040084610
    Abstract: An optical navigation sensor apparatus for an optical mouse includes an optical navigation sensor having an electronic chip, an aperture plate and an imaging lens integrated into a single package. The imaging lens includes a lens housing surrounding the aperture and providing a barrier to the entry of foreign matter into the aperture. In one form, the optical navigation sensor also includes a light emitting diode (LED) for illuminating a small area of a surface under the sensor and generating a reflected image that is detected by the electronic chip. In a sensor having an integral LED, an integral collimating lens is included for receiving light from the LED and focusing the light from the LED on the surface to be illuminated. The collimating lens is incorporated into a lens housing surrounding the LED and protecting the LED from exposure to foreign material.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 6, 2004
    Inventors: Ak Wing Leong, Gurbir Singh, Poh Huat Lye, Sai Mun Lee
  • Publication number: 20030236007
    Abstract: A connector for an electronic or an optoelectronic component which is plug-in connected to a connecting part of an electrical device, comprising a supporting body which has a receiving recess for receiving the connecting part, the recess being open toward the outside. Further, the connector comprises an electronic or an optoelectronic component which is arranged on the supporting body, and at least one lead which is connected to the electronic or the optoelectronic component and extending therefrom into the recess, wherein an end section of the lead extends into the recess and forms a terminal for being connected to a corresponding terminal of the connecting part received within the recess. Further, a circuit board system comprises a circuit board having an edge on which a terminal is arranged to which the connector is connected.
    Type: Application
    Filed: April 28, 2003
    Publication date: December 25, 2003
    Inventors: Poh Huat Lye, Ak Wing Leong