Patents by Inventor Alexander Kahn
Alexander Kahn 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: 9131837Abstract: A method and apparatus for imaging the choroid is described. A plurality of choroidal images is captured. The plurality of images is aggregated to generate a single aggregated image with good contrast. Prior to any aggregation, the images may be aligned to remove any displacement caused by saccadic motion between one frame and another, and any images degraded by a blink of the patient can be identified and discarded.Type: GrantFiled: October 9, 2014Date of Patent: September 15, 2015Assignee: Annidis CorporationInventors: Alan Boate, Jeremy Lloyd Gribben, David Alexander Kahn
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Publication number: 20150055094Abstract: A method and apparatus for imaging the choroid is described. A plurality of choroidal images is captured. The plurality of images is aggregated to generate a single aggregated image with good contrast. Prior to any aggregation, the images may be aligned to remove any displacement caused by saccadic motion between one frame and another, and any images degraded by a blink of the patient can be identified and discarded.Type: ApplicationFiled: October 9, 2014Publication date: February 26, 2015Inventors: Alan BOATE, Jeremy Lloyd GRIBBEN, David Alexander KAHN
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Patent number: 8882272Abstract: A method and apparatus for imaging the choroid. The method comprises indirectly illuminating the choroid of an eye using incident light having a wavelength spectrum in the near-infrared region; and collecting the light passing out through the choroid and the pupil of the eye using an image sensor to obtain an image of the choroid.Type: GrantFiled: June 23, 2011Date of Patent: November 11, 2014Assignee: Annidis Health Systems Corp.Inventors: Alan Boate, Jeremy Lloyd Gribben, David Alexander Kahn
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Patent number: 8807751Abstract: A method and apparatus for quantitative imaging of the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc.Type: GrantFiled: July 12, 2013Date of Patent: August 19, 2014Assignee: Annidis Health Systems Corp.Inventors: David Alexander Kahn, Ian Powell, Alan Boate, Jeremy Lloyd Gribben
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Publication number: 20130301004Abstract: A method and apparatus for quantitative imaging of the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc.Type: ApplicationFiled: July 12, 2013Publication date: November 14, 2013Inventors: David Alexander KAHN, Ian POWELL, Alan BOATE, Jeremy Lloyd GRIBBEN
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Patent number: 8491120Abstract: A method and apparatus for quantitatively imaging the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc.Type: GrantFiled: April 22, 2009Date of Patent: July 23, 2013Assignee: Annidis Health Systems Corp.Inventors: David Alexander Kahn, Ian Powell
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Publication number: 20130107211Abstract: A method and apparatus for imaging the choroid. The method comprises indirectly illuminating the choroid of an eye using incident light having a wavelength spectrum in the near-infrared region; and collecting the light passing out through the choroid and the pupil of the eye using an image sensor to obtain an image of the choroid.Type: ApplicationFiled: June 23, 2011Publication date: May 2, 2013Applicant: ANNIDIS HEALTH SYSTEMS CORP.Inventors: Alan Boate, Jeremy Lloyd Gribben, David Alexander Kahn
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Publication number: 20110043756Abstract: A method and apparatus for quantitatively imaging the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc.Type: ApplicationFiled: April 22, 2009Publication date: February 24, 2011Applicant: ANNIDIS HEALTH SYSTEMS CORP.Inventors: David Alexander Kahn, Ian Powell
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Patent number: 7502112Abstract: A hand-held colorimetric device (101) suitable for use by blind or color-blind individuals to determine the color of a surface-under-test (SUT), for example of a fabric, has an aperture (110) which, in use, is covered by the SUT (113) whose color is to be determined. Six LEDs (115A, 115B, 116B, 117A and 117B) arranged in pairs (115A/115B, 116A/116 B, 117a/117B) emitting red/orange, green, and blue light illuminate the SUT and diffuse reflections therefrom containing red/orange, green, and blue spectrum sample values are used to determine the luminous reflectivity and chromaticity values for the color of the SUT. The measured values are compared with colorimetric values of reference surfaces to determine the color of the SUT. The colorimetric device may output the name of the color aurally.Type: GrantFiled: December 20, 2005Date of Patent: March 10, 2009Assignee: Brytech Inc.Inventors: David Alexander Kahn, John C. B. Davey
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Patent number: 5844544Abstract: In an eye-directed communications device which displays characters, for example symbols or letters, and determines a user's selection by monitoring eye position to determine which of the characters is being observed, difficulties in providing for selection of the usual characters and functions of a conventional 101 key computer keyboard are overcome by dividing the required characters/functions into three sets, designated as lower case, upper case and "command" case. In order to select a particular character, the user first selects the case and then selects the character. Only one set need be displayed to the user, the characters in the other sets having spatial correspondence with those in displayed set. The system may also, or alternatively, display the characters in groups and define position selection fields corresponding to the positions of the characters in each group.Type: GrantFiled: June 13, 1995Date of Patent: December 1, 1998Assignee: H. K. Eyecan Ltd.Inventors: David Alexander Kahn, Jan Heynen
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Patent number: 4100719Abstract: An elongated central shaft is provided at one end with a hook for supporting thereon a hanger for a garment contained thereon. The other end of the central elongated shaft is connected to a mounting element which mounts the arrangement on an apparatus for bagging garments. The elongated shaft has mounted thereabout a spreader unit which is hinged at its ends thereof so that, as a bag is pulled down from an apparatus for bagging garments, the spreader unit positioned about the central elongated shaft will cause the leading end of the bag to open up and thereby avoid contact with the hook and the central elongated shaft.Type: GrantFiled: March 16, 1977Date of Patent: July 18, 1978Assignee: U.S. Dynamics CorporationInventors: Murray Jelling, Alexander Kahn, Ernest George Moore, Michael Friedman
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Patent number: 4027461Abstract: An elongated central shaft is provided at one end with a hook for supporting thereon a hanger for a garment. The other end of the central elongated shaft is connected to a mounting element which mounts the arrangement on an apparatus for bagging garments. The elongated shaft has mounted thereabout a compressible spreader unit which is hinged at its ends so that, as a bag is pulled down from an apparatus for bagging garments, the spreader unit positioned about the central elongated shaft will cause the bag to open and avoid contact with the hook and the central elongated shaft.Type: GrantFiled: July 22, 1976Date of Patent: June 7, 1977Assignee: U.S. Dynamics CorporationInventors: Murray Jelling, Alexander Kahn, Ernest George Moore, Michael Friedman
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Patent number: 3990625Abstract: For a bagging device, there is provided a roll of polyethylene bags which are fed through a braking device and thence past spreading devices and a floating hook support, whereupon are engaged sequentially the hooks of hangers upon which garments or the like are supported. The bags are provided with indicia thereupon which can be detected by a detecting device to actuate the braking device so that the bags may be readily torn off before they seat on the respective garments being packaged.Type: GrantFiled: August 8, 1975Date of Patent: November 9, 1976Inventors: Murray Jelling, Alexander Kahn, Ernest George Moore, Michael Friedman
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Patent number: 3987603Abstract: Bags from a roll of polyethylene bags are fed through a braking device and thence past spreading devices and a floating hook support, whereupon are engaged sequentially the hooks of hangers upon which garments or the like are supported. The bags are provided with indicia which are detected by a detecting device to actuate the braking device so that the bags may be readily torn off before they seat on the respective garments being packaged. Provision is made for adjustments of the braking time so that the brake automatically releases after a fixed period of time thereby facilitating a drawing of the bags from the source for sequential bagging operations.Type: GrantFiled: August 8, 1975Date of Patent: October 26, 1976Inventors: Murray Jelling, Alexander Kahn, Ernest George Moore, Michael Friedman
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Patent number: 3961460Abstract: A bagging device is provided with a floor supported device having a roll of polyethylene bags thereon, which are fed through a braking device and thence a round spreading devices and a floating hook support, whereupon is engaged sequentially the hooks of hangers upon which garments or the like are supported. The bags are provided with indicia thereupon which are detected by a detecting device to actuate the braking device so that the bags may be readily torn off before they seat on the respective garments being packaged. Provision is made for adjustments of the braking time so that the brake automatically releases after a fixed period of time thereby facilitating a drawing of the bags from the source for sequential bagging operations.Type: GrantFiled: December 9, 1974Date of Patent: June 8, 1976Assignee: U.S. Dynamics CorporationInventors: Murray Jelling, Alexander Kahn, Ernest George Moore, Michael Friedman