Patents by Inventor Daniel Leong
Daniel 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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Publication number: 20220330946Abstract: Temporary vascular occlusion devices and methods for use thereof are described which provide temporary vascular occlusion while maintaining distal perfusion. The temporary vascular occlusion device may include a multiple layer scaffold covering having proximal and distal attachment zones separated by an unattached scaffold covering zone where the scaffold covering is adjacent to but not attached directly to the scaffold frame.Type: ApplicationFiled: September 25, 2020Publication date: October 20, 2022Applicant: RENALPRO MEDICAL, INC.Inventors: Nicholas DeBEER, Daniel LEONG LEONG
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Publication number: 20210059713Abstract: A catheter system includes a catheter body that includes an outer shaft and a rotatable inner shaft. The inner shaft can include one or more imaging sensors for collecting images outside of the catheter body. The catheter body can include one or more windows for providing imaging access for the imaging sensor(s) outside of the catheter body. A distal portion of the catheter body can include a selective bending feature for bending the distal portion in a defined direction. The catheter body can include one or more markers that the imaging sensor can detect to determine a relative orientation of the catheter body.Type: ApplicationFiled: April 19, 2019Publication date: March 4, 2021Applicant: AVINGER, INC.Inventors: Himanshu N. PATEL, Daniel LEONG
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Patent number: 9621874Abstract: A multiple imager camera includes a block, an imager, and an alignment apparatus. The block is configured to direct an image to a plurality of imagers located proximate to a plurality of apertures defined by the block. The imager of the plurality of imagers is configured to receive the image through an aperture of the plurality of apertures. The alignment apparatus is interposed between the block and the imager. The alignment apparatus is configured to allow for six degrees of freedom to align the imager with the image. The six degrees of freedom include adjustment along a x-axis, a y-axis, and a z-axis of the aperture, and adjustment about a pitch-axis, a yaw-axis, and a roll-axis of the aperture. The alignment apparatus is further configured to fixedly couple the imager to the block after the imager is aligned with the image.Type: GrantFiled: August 29, 2014Date of Patent: April 11, 2017Assignee: Delphi Technologies, Inc.Inventors: Daniel Leong Woon Loong, Kok Wee Yeo, Yew Kwang Low, Ronald M. Taylor, Thomas A. Degenkolb, Ward K. Everly, Morgan D. Murphy
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Publication number: 20160107576Abstract: An optical sensor system that includes a master lens, an optical diffuser, and a plurality of optoelectronic devices. The master lens is positioned on the vehicle to observe a field of view about the vehicle. An optical diffuser is located proximate to a focal plane of the master lens. The diffuser is configured to display an image of the field of view from the master lens. A first optoelectronic device generates a first video signal indicative of images on a first portion of the diffuser. A second optoelectronic device generates a second video signal indicative of images on a second portion of the diffuser. The optoelectronic devices may be sensitive to distinct ranges of wavelength. The second portion substantially overlaps the first portion such that the image captured by the first optoelectronic device is substantially the same as the image captured by the second optoelectronic device.Type: ApplicationFiled: December 22, 2015Publication date: April 21, 2016Inventors: DANIEL LEONG WOON LOONG, KOK WEE YEO, YEW KWANG LOW, RONALD M. TAYLOR
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Publication number: 20160065940Abstract: A multiple imager camera includes a block, an imager, and an alignment apparatus. The block is configured to direct an image to a plurality of imagers located proximate to a plurality of apertures defined by the block. The imager of the plurality of imagers is configured to receive the image through an aperture of the plurality of apertures. The alignment apparatus is interposed between the block and the imager. The alignment apparatus is configured to allow for six degrees of freedom to align the imager with the image. The six degrees of freedom include adjustment along a x-axis, a y-axis, and a z-axis of the aperture, and adjustment about a pitch-axis, a yaw-axis, and a roll-axis of the aperture. The alignment apparatus is further configured to fixedly couple the imager to the block after the imager is aligned with the image.Type: ApplicationFiled: August 29, 2014Publication date: March 3, 2016Inventors: DANIEL LEONG WOON LOONG, KOK WEE YEO, YEW KWANG LOW, RONALD M. TAYLOR, THOMAS A. DEGENKOLB, WARD K. EVERLY, MORGAN D. MURPHY
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Publication number: 20150124094Abstract: An optical sensor system that includes a master lens, an optical diffuser, and a plurality of optoelectronic devices. The master lens is positioned on the vehicle to observe a field of view about the vehicle. An optical diffuser is located proximate to a focal plane of the master lens. The diffuser is configured to display an image of the field of view from the master lens. A plurality of optoelectronic devices is configured to view the diffuser. A first optoelectronic device generates a first video signal indicative of images on a first portion of the diffuser. A second optoelectronic device generates a second video signal indicative of images on a second portion of the diffuser. Optionally, the first optoelectronic device is sensitive to a first light wavelength range, and the second optoelectronic device is sensitive to a second light wavelength range distinct from the first light wavelength range.Type: ApplicationFiled: November 5, 2013Publication date: May 7, 2015Applicant: Delphi Technologies, Inc.Inventors: DANIEL LEONG WOON LOONG, KOK WEE YEO, YEW KWANG LOW, RONALD M. TAYLOR
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Patent number: 8823641Abstract: A three dimensional (3D) imaging system configured to display an autostereoscopic image of a scene toward a viewing area, and detect gestures occurring in the viewing area. The system includes an imaging device configured to project a plurality of projected images in distinct directions, and each projected image is characterized as a distinct perspective view of the scene. The imaging device is also configured to detect a plurality of received images for the purpose of detecting gestures. The system also includes a holographic diffuser, and a mirror arrangement configured to reflect the plurality of projected images from the imaging device toward the holographic diffuser to display an autostereoscopic image of the scene in the holographic diffuser, and reflect a plurality of perspective images from the viewing area toward the imaging device such that each received image corresponds to a distinct perspective view of the viewing area.Type: GrantFiled: May 22, 2012Date of Patent: September 2, 2014Assignee: Delphi Technologies, Inc.Inventors: Frederick F. Kuhlman, Daniel Leong Woon Loong, Yew Kwang Low, Kok Wee Yeo
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Patent number: 8746889Abstract: An autostereoscopic display configured to display a three dimensional (3D) image of a scene. The autostereoscopic display uses a single projector to project a plurality of projected images into a mirror arrangement fixedly positioned in the projection field of the single projector to reflect the plurality of projected images onto the holographic diffuser from distinct directions such that a 3D image is perceived by a person viewing the holographic diffuser.Type: GrantFiled: October 27, 2011Date of Patent: June 10, 2014Assignee: Delphi Technologies, Inc.Inventors: Daniel Leong, Frederick F. Kuhlman
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Patent number: 8610841Abstract: A volumetric display for displaying three dimensional (3D) images. The volumetric display uses a flat panel display to output light into a volumetric diffuser, and an array of electrowetting lenses between the flat panel display and the volumetric diffuser to direct light emitted by one or more of the pixels of the flat panel display toward a location within the display volume such that the location is illuminated brighter than other locations within the display volume.Type: GrantFiled: October 28, 2011Date of Patent: December 17, 2013Assignee: Delphi Technologies, Inc.Inventors: Frederick F. Kuhlman, Daniel Leong
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Publication number: 20130321776Abstract: A multiple viewer display configured to display one or more perspectives of a plurality of scenes toward a corresponding plurality of locations in order to provide each of a corresponding plurality of persons viewing the display a distinct two-dimensional (2D) or three-dimensional (3D) image. The display includes a single projector configured to project the one or more perspectives of the plurality of scenes toward a minor arrangement positioned configured to reflect the one or more perspectives of the plurality of scenes projected by the single projector toward a holographic diffuser As such, distinct 2D or 3D images are seen by each of the plurality of persons viewing the display from distinct locations.Type: ApplicationFiled: May 29, 2012Publication date: December 5, 2013Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Daniel Leong Woon Loong, Frederick F. Kuhlman
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Publication number: 20130314311Abstract: A three dimensional (3D) imaging system configured to display an autostereoscopic image of a scene toward a viewing area, and detect gestures occurring in the viewing area. The system includes an imaging device configured to project a plurality of projected images in distinct directions, and each projected image is characterized as a distinct perspective view of the scene. The imaging device is also configured to detect a plurality of received images for the purpose of detecting gestures. The system also includes a holographic diffuser, and a mirror arrangement configured to reflect the plurality of projected images from the imaging device toward the holographic diffuser to display an autostereoscopic image of the scene in the holographic diffuser, and reflect a plurality of perspective images from the viewing area toward the imaging device such that each received image corresponds to a distinct perspective view of the viewing area.Type: ApplicationFiled: May 22, 2012Publication date: November 28, 2013Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Frederick F. Kuhlman, Daniel Leong Woon Loong, Yew Kwang Low, Kok Wee Yeo
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Publication number: 20130314416Abstract: A volumetric display that includes a dispersion block defining a plurality of voxels that are characterized as being visibly apparent when illuminated by impinging light, a projector configured to project one or more light rays for illuminating one or more of the plurality of voxels, and a plurality of arrays of electrowetting mirrors arranged about the dispersion block, wherein each electrowetting mirror is operable to reflect a light ray from the projector toward a selected voxel. The arrays of electrowetting minors provide for a volumetric display that is readily focused.Type: ApplicationFiled: May 22, 2012Publication date: November 28, 2013Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Frederick F. Kuhlman, Daniel Leong Woon Loong, Richard D. Parker
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Patent number: 8499644Abstract: A sensor configured to detect a stress wave propagating through a vehicle frame member caused by a vehicle collision is provided. The sensor includes a sensor body configured to be rigidly coupled to the vehicle frame member, a first strain sensing device and a second strain sensing device attached to the sensor body. The sensor body is configured to exhibit stress in response to transverse and torsional stress wave propagating along the vehicle frame member. The first strain sensing device generates a first signal indicative of stress in the sensor body and the second strain sensing device generates a second signal indicative of stress in the sensor body. A first end portion of the sensor body is characterized as trapezoidal prism shaped and a second end portion of the sensor body is characterized as trapezoidal prism shaped.Type: GrantFiled: July 27, 2011Date of Patent: August 6, 2013Assignee: Delphi Technologies, Inc.Inventors: Daniel Leong, Chee Keng Yeo, Yew Kwang Low, Kok Wee Yeo
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Publication number: 20130107217Abstract: An autostereoscopic display configured to display a three dimensional (3D) image of a scene. The autostereoscopic display uses a single projector to project a plurality of projected images into a mirror arrangement fixedly positioned in the projection field of the single projector to reflect the plurality of projected images onto the holographic diffuser from distinct directions such that a 3D image is perceived by a person viewing the holographic diffuser.Type: ApplicationFiled: October 27, 2011Publication date: May 2, 2013Applicant: DELPHI TECHNOLOGIES, INC.Inventors: DANIEL LEONG, FREDERICK F. KUHLMAN
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Publication number: 20130106856Abstract: A volumetric display for displaying three dimensional (3D) images. The volumetric display uses a flat panel display to output light into a volumetric diffuser, and an array of electrowetting lenses between the flat panel display and the volumetric diffuser to direct light emitted by one or more of the pixels of the flat panel display toward a location within the display volume such that the location is illuminated brighter than other locations within the display volume.Type: ApplicationFiled: October 28, 2011Publication date: May 2, 2013Applicant: DELPHI TECHNOLOGIES, INC.Inventors: FREDERICK F. KUHLMAN, DANIEL LEONG
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Publication number: 20110277551Abstract: A sensor configured to detect a stress wave propagating through a vehicle frame member caused by a vehicle collision is provided. The sensor includes a sensor body configured to be rigidly coupled to the vehicle frame member, a first strain sensing device and a second strain sensing device attached to the sensor body. The sensor body is configured to exhibit stress in response to transverse and torsional stress wave propagating along the vehicle frame member. The first strain sensing device generates a first signal indicative of stress in the sensor body and the second strain sensing device generates a second signal indicative of stress in the sensor body. A first end portion of the sensor body is characterized as trapezoidal prism shaped and a second end portion of the sensor body is characterized as trapezoidal prism shaped.Type: ApplicationFiled: July 27, 2011Publication date: November 17, 2011Applicant: DELPHI TECHNOLOGIES, INC.Inventors: DANIEL LEONG, CHEE KENG YEO, YEW KWANG LOW, KOK WEE YEO
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Publication number: 20100277298Abstract: A detection system and method for detecting an object adjacent a vehicle is provided, wherein the detection system includes a plurality of thermopile sensors and a processor. The plurality of thermopile sensors include a first thermopile sensor and second thermopile sensor. The detection system further includes a processor in communicative connection with the plurality of thermopile sensors, the processor being adapted to receive a signal from a vehicle component as to an operating condition of the vehicle, wherein the processor is configured to command at least one of the first and second thermopile sensors to auto-align, and determine a detection of an object that is adjacent to the vehicle as a function one of a plurality of detection modes, the plurality of detection modes being based upon movement of the vehicle with respect to the vehicle's normal operating position.Type: ApplicationFiled: April 29, 2009Publication date: November 4, 2010Applicant: DELPHI TECHNOLOGIES, INC.Inventors: DANIEL LEONG, CHEE KENG YEO, YEW KWANG LOW, KOK WEE YEO
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Publication number: 20030091311Abstract: In the present invention, profiling of the end facet of an optical waveguide reduces the amount of reflected light propagating in the waveguide. In a conventional waveguide, the effective reflectivity experienced by light at a facet is determined by the modal content of the light and the refractive index of the waveguide (core and cladding) and other material at either side of the dielectric interface, which constitutes the facet. In the present invention, depending upon the modal content of the light, the waveguide dimensions and the refractive indices at the dielectric interfaces, we adjust the profile of the facets so that it is no longer planar and so substantially reduce the amount of reflected light propagating back along the waveguide. This reduction in “effective reflectivity” can be due to an increase in the loss experienced by any reflected light or due to an increase in the amount of light transmitted.Type: ApplicationFiled: October 16, 2002Publication date: May 15, 2003Applicant: Denselight Semiconductors Pte LtdInventors: Yee Loy Lam, Woon Loong Daniel Leong, Yuen Chuen Chan
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Patent number: 6288415Abstract: An optoelectronic semiconductor device in the form of an LED comprises a silicon p-n junction having a photoactive region containing beta-iron disilicide (&bgr;-FeSi2). The LED produces electroluminescence at a wavelength of about 1.5 &mgr;m.Type: GrantFiled: September 24, 1999Date of Patent: September 11, 2001Assignee: University of SurreyInventors: Daniel Leong, Milton Anthony Harry, Kevin Homewood, Karen Joy Reeson Kirkby