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).
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Patent number: 8232966Abstract: 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: GrantFiled: June 3, 2008Date of Patent: July 31, 2012Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Chiang Sun Cheah, Ak Wing Leong, Yee Loong Chin
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Patent number: 7977692Abstract: 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: GrantFiled: March 31, 2006Date of Patent: July 12, 2011Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Ak Wing Leong, Kheng Leng Tan
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Patent number: 7701565Abstract: 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: GrantFiled: April 10, 2006Date of Patent: April 20, 2010Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Chiang Sun Cheah, Chin Heong Yeoh, Ak Wing Leong
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Patent number: 7639509Abstract: 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: GrantFiled: May 10, 2006Date of Patent: December 29, 2009Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Tong Fatt Chew, Ak Wing Leong
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Publication number: 20090295718Abstract: 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: ApplicationFiled: June 3, 2008Publication date: December 3, 2009Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.Inventors: Chiang Sun Cheah, Ak Wing Leong, Yee Loong Chin
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Patent number: 7473889Abstract: 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: GrantFiled: December 16, 2004Date of Patent: January 6, 2009Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Poh-Huat Lye, Ak-Wing Leong
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Patent number: 7358958Abstract: 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: GrantFiled: May 5, 2004Date of Patent: April 15, 2008Assignee: Avago Technologies ECBU IP Pte LtdInventors: Paul M. Welch, Sai-Mun Lee, Gurbir Singh A/L Balwant Singh, Ak-Wing Leong
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Publication number: 20070269915Abstract: 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: ApplicationFiled: May 16, 2006Publication date: November 22, 2007Inventors: Ak Wing Leong, Kee Yean Ng, Tajul Arosh Baroky
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Publication number: 20060131477Abstract: 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: ApplicationFiled: December 16, 2004Publication date: June 22, 2006Inventors: Poh-Huat Lye, Ak-Wing Leong
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Patent number: 7045775Abstract: 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: GrantFiled: July 15, 2005Date of Patent: May 16, 2006Assignee: Avago Technologies, Ltd.Inventors: Ak Wing Leong, Gurbir Singh, Poh Huat Lye, Sai Mun Lee
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Patent number: 6967321Abstract: 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: GrantFiled: November 1, 2002Date of Patent: November 22, 2005Assignee: Agilent Technologies, Inc.Inventors: Ak Wing Leong, Gurbir Singh, Poh Huat Lye, Sai Mun Lee
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Publication number: 20050249449Abstract: 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: ApplicationFiled: May 5, 2004Publication date: November 10, 2005Inventors: Paul Welch, Sai-Mun Lee, Gurbir Singh A/L Singh, Ak-Wing Leong
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Patent number: 6929485Abstract: 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: GrantFiled: March 16, 2004Date of Patent: August 16, 2005Assignee: Agilent Technologies, Inc.Inventors: Ak Wing Leong, Michael J. Brosnan
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Publication number: 20040084610Abstract: 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: ApplicationFiled: November 1, 2002Publication date: May 6, 2004Inventors: Ak Wing Leong, Gurbir Singh, Poh Huat Lye, Sai Mun Lee
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Publication number: 20030236007Abstract: 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: ApplicationFiled: April 28, 2003Publication date: December 25, 2003Inventors: Poh Huat Lye, Ak Wing Leong