Patents by Inventor Ban Kuan Koay
Ban Kuan Koay 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: 8081162Abstract: An optical navigation device for operation in a surface navigation mode and a free space navigation mode is described. One embodiment of the optical navigation device includes a microcontroller, a surface navigation sensor, and a free space navigation sensor. The surface and free space navigation sensors are coupled to the microcontroller. The microcontroller is configured to process a movement of the optical navigation device. The surface navigation sensor is configured to generate a surface navigation signal in response to a surface navigation image. The free space navigation sensor is configured to generate a free space navigation signal in response to a free space navigation image. Embodiments of the optical navigation device facilitate an integrated optical solution to provide desktop navigation and scene navigation in a single optical navigation device.Type: GrantFiled: May 16, 2007Date of Patent: December 20, 2011Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Edward Kah Ching Teoh, Yat Kheng Leong, Jin Kiong Ang, Wui Pin Lee, Ban Kuan Koay
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Patent number: 7615733Abstract: An optical navigation apparatus and method for making the apparatus uses a light source and a sensor having an imaging array mounted on a leadframe and encapsulated in an optically transparent body structure. The optically transparent body structure is configured to include a prism-like feature to internally reflect light from the light source toward a target surface and an imaging lens feature to optically manipulate the light reflected from the target surface onto the imaging array of the sensor.Type: GrantFiled: December 19, 2007Date of Patent: November 10, 2009Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Ban Kuan Koay, Chiang Sun Cheah, Chin Heong Yeoh
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Publication number: 20090159780Abstract: An optical navigation apparatus and method for making the apparatus uses a light source and a sensor having an imaging array mounted on a leadframe and encapsulated in an optically transparent body structure. The optically transparent body structure is configured to include a prism-like feature to internally reflect light from the light source toward a target surface and an imaging lens feature to optically manipulate the light reflected from the target surface onto the imaging array of the sensor.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.Inventors: Ban Kuan Koay, Chiang Sun Cheah, Chin Heong Yeoh
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Publication number: 20080288205Abstract: An optical navigation device for operation in a surface navigation mode and a free space navigation mode is described. One embodiment of the optical navigation device includes a microcontroller, a surface navigation sensor, and a free space navigation sensor. The surface and free space navigation sensors are coupled to the microcontroller. The microcontroller is configured to process a movement of the optical navigation device. The surface navigation sensor is configured to generate a surface navigation signal in response to a surface navigation image. The free space navigation sensor is configured to generate a free space navigation signal in response to a free space navigation image. Embodiments of the optical navigation device facilitate an integrated optical solution to provide desktop navigation and scene navigation in a single optical navigation device.Type: ApplicationFiled: May 16, 2007Publication date: November 20, 2008Inventors: Edward Kah Ching Teoh, Yat Kheng Leong, Jin Kiong Ang, Wui Pin Lee, Ban Kuan Koay
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Publication number: 20080087991Abstract: A vertical light source package uses leadframes with leads that extend in the same predefined direction. The leadframes are at least partially positioned in a structural body of the vertical light source package. The vertical light source package includes a light emitting device, such as a vertical-cavity surface-emitting laser, that is situated on one of the leadframes and electrically connected to the other leadframe.Type: ApplicationFiled: October 13, 2006Publication date: April 17, 2008Inventors: Chiang Sun Cheah, Ban Kuan Koay
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Patent number: 7339575Abstract: A method and apparatus for focusing an image of a work surface on an optical sensor array in an optical pointing device. Light from a region of the work surface is captured by an imaging system incorporating an optical coupling system and the optical sensor array. The focus of the imaging system is adjusted in accordance with the distance between the optical pointing device and the work surface. The distance may be sensed, or inferred by adjusting the imaging system to maximize the focus of the image.Type: GrantFiled: May 25, 2004Date of Patent: March 4, 2008Assignee: Avago Technologies ECBU IP Pte LtdInventors: Li Chong Tai, Theng Theng Quek, Ban-Kuan Koay
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Patent number: 7310086Abstract: An input device includes a navigation mechanism configured to move parallel to a shaft and to move tangential to the shaft. The input device further includes a movement detection system to detect movement of the navigation mechanism relative to the shaft.Type: GrantFiled: May 12, 2004Date of Patent: December 18, 2007Assignee: Avago Technologies ECBU IP (Singapore) PTE LtdInventors: Li Chong Tai, Ban Kuan Koay, Wai Lee Wong
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Patent number: 7280099Abstract: An optical navigation device that regulates the brightness of an adjustable light source, and a method thereof, are described. Light from the light source is emitted onto a surface and reflected from the surface to a sensor. The light received by the sensor is used to measure movement of the optical navigation device relative to the surface. A light-sensitive device also receives light from the light source. The brightness of the light source can be adjusted according to the amount of light received at the light-sensitive device.Type: GrantFiled: January 28, 2004Date of Patent: October 9, 2007Assignee: Avago Technologies ECBU IP (Singapore) Pte LtdInventors: Ban Kuan Koay, Fook Main Heng, Boon How Kok
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Patent number: 7205532Abstract: A compact optical sensor package for use in an optical mouse. The optical sensor package includes a chip enclosure which is physically and electrically bonded to a main circuit Board using Ball Grid Array (BGA) technology. The chip enclosure includes a windowed cover having a window, and a base board hermetically sealed to the windowed cover to enclose the sensor chip. The sensor chip is electrically connected to bonding pads on the inner surface of the base plate. The bonding pads are electrically connected through the base plate to bonding pads on the outer surface of the base plate. The bonding pads on the outer surface of the base plate are elements in this application of Ball Grid Array technology.Type: GrantFiled: August 24, 2004Date of Patent: April 17, 2007Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Li Chong Tai, Angeline Khoo, Ban Kuan Koay
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Patent number: 7019733Abstract: A pointing device having an illumination system, camera system, and positioning mechanism is disclosed. The illumination system illuminates a surface below a transparent plate having a constant thickness. The camera system records images of the illuminated surface. The positioning mechanism adjusts the relative position of the illumination with respect to the camera system. The relative position is determined by the constant thickness. The positioning mechanism has a first position corresponding to a predetermined value for the constant thickness and a second position corresponding to the constant thickness being zero. The positioning mechanism is operable by a user of the pointing device to compensate for different thicknesses of transparent plates.Type: GrantFiled: March 31, 2003Date of Patent: March 28, 2006Inventor: Ban Kuan Koay
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Publication number: 20050264531Abstract: A method and apparatus for focusing an image of a work surface on an optical sensor array in an optical pointing device. Light from a region of the work surface is captured by an imaging system incorporating an optical coupling system and the optical sensor array. The focus of the imaging system is adjusted in accordance with the distance between the optical pointing device and the work surface. The distance may be sensed, or inferred by adjusting the imaging system to maximize the focus of the image.Type: ApplicationFiled: May 25, 2004Publication date: December 1, 2005Inventors: Li Tai, Theng Quek, Ban-Kuan Koay
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Publication number: 20040189593Abstract: A pointing device having an illumination system, camera system, and positioning mechanism is disclosed. The illumination system illuminates a surface below a transparent plate having a constant thickness. The camera system records images of the illuminated surface. The positioning mechanism adjusts the relative position of the illumination with respect to the camera system. The relative position is determined by the constant thickness. The positioning mechanism has a first position corresponding to a predetermined value for the constant thickness and a second position corresponding to the constant thickness being zero. The positioning mechanism is operable by a user of the pointing device to compensate for different thicknesses of transparent plates.Type: ApplicationFiled: March 31, 2003Publication date: September 30, 2004Inventor: Ban Kuan Koay