Patents by Inventor Wei Koh
Wei Koh 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: 8982416Abstract: To generate a proof of a printable item, a data structure is provided that maps a set of spot colors into a respective set of color values based on measurement data provided by a measurement device of colors printed by a printing system from the spot colors.Type: GrantFiled: February 2, 2011Date of Patent: March 17, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kok-Wei Koh, Ingeborg Tastl, Fabio Giannetti
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Patent number: 8976252Abstract: The present disclosure related to acquisition of color calibration charts. In at least some examples herein, an image of a calibration color chart is processed. A lighting condition of the color calibration chart may be automatically determined.Type: GrantFiled: January 30, 2013Date of Patent: March 10, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kok-Wei Koh, Nathan Moroney, Ehud Chatow, Melanie M. Gottwals
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Patent number: 8971618Abstract: A target and a method to use the target to determine the translucence of media is disclosed. The target has a first region and a second region. The first region comprises a color chart. The second region comprises a test pattern that is covered by the sample media when the sample media is loaded onto the target. The test target has a first area and a second area. An image of the target loaded with the sample media is used to determine the translucence of the sample media. The color of the media over the first and second areas of the test target are matched to the nearest color patches in the image of the color chart. The estimated actual colors of the media over the first and second areas of the test target are determined using the known colors of the nearest color patches. The translucence is determined using the difference between the estimated actual colors of the media over the first and second areas of the test target.Type: GrantFiled: January 14, 2013Date of Patent: March 3, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Nathan Moroney, Kok-Wei Koh, Ehud Chatow
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Patent number: 8817324Abstract: The present disclosure provides methods and systems for aggregating print jobs of different lengths and/or customers to decrease the need for rewinding and splicing operations. An exemplary embodiment provides a method that comprises identifying individual label-printing jobs (1-8) that can be aggregated onto a roll of substrate (302), and forming an aggregated label-printing job (300). In the aggregated label-printing job (300) a longest print job (8) is imposed adjacent to a first end of the roll of substrate (302), and one or more shorter print jobs (2, 5, 7) are imposed adjacent to the longest print job (8) in the direction of a second end of the roll of substrate (302).Type: GrantFiled: June 11, 2010Date of Patent: August 26, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Fabio Giannetti, Benjamin I. Dempster, Kok-Wei Koh, Alysha Naples, Jose Manuel Perez
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Patent number: 8814391Abstract: A light guiding structure includes a light transmissive body and microstructures; the light transmissive body includes an upper conical groove and a lower accommodating groove, and the upper conical groove has a curved surface with a continually varied slope; the microstructures are disposed on the light transmissive body. A lighting device includes a circuit board, a light source and the aforesaid light guiding structure; the light source and the light guiding structure are disposed on the circuit board, and the light source is accommodated within the lower accommodating groove.Type: GrantFiled: September 16, 2011Date of Patent: August 26, 2014Assignee: Luxingtek, Ltd.Inventors: Zhi-Wei Koh, Chi-Jen Kao, Wen-Chiun Ing, Wei-Hsin Hou
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Publication number: 20140232923Abstract: In the present disclosure techniques related to display of device independent color differences are described. In examples, a color comparison graphical user interface (GUI) is operated. The GUI displays a color of a sample object. Further, the GUI displays a color of a reference object. Further, the GUI displays a device independent color difference between the sample color and the reference color.Type: ApplicationFiled: February 20, 2013Publication date: August 21, 2014Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, LLPInventors: Wei Koh, Melanie Gottwals, Nathan Moroney, Udi Chatow, Gershon Alon
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Publication number: 20140198983Abstract: A target and a method to use the target to determine the translucence of media is disclosed. The target has a first region and a second region. The first region comprises a color chart. The second region comprises a test pattern that is covered by the sample media when the sample media is loaded onto the target. The test target has a first area and a second area, An image of the target loaded with the sample media is used to determine the translucence of the sample media. The color of the media over the first and second areas of the test target are matched to the nearest color patches in the image of the color chart. The estimated actual colors of the media over the first and second areas of the test target are determined using. the known colors of the nearest color patches. The translucence is determined using the difference between the estimated actual colors of the media over the first and second areas of the test target.Type: ApplicationFiled: January 14, 2013Publication date: July 17, 2014Applicant: Hewlett-Packard Development Company, L.P.Inventors: Nathan Moroney, Kok-Wei Koh, Ehud Chatow
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Publication number: 20140176967Abstract: A method for colorimetric rendering includes receiving, by a display device, an image that has been preprocessed for adjusting color and disregarding, by the display device, the preprocessing for adjusting color. The display device performs a colorimetric rendering transform at the time of display or print of the image by using an embedded colorimetric reference. A display device for colorimetric rendering of digital images is also provided.Type: ApplicationFiled: December 20, 2012Publication date: June 26, 2014Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Nathan Moroney, Nina Bhatti, Kok-Wei Koh, Melanie M. Gottwals
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Publication number: 20140156491Abstract: A financial instrument exchange, system and method based upon the intensity of an underlying index. The instrument having a predetermined formula for a settlement price based at least in part on the formula: AR = [ 1 N ? ? j = 1 N ? ? r j ] × C where: N=a number of total observation periods; C=a constant multiplier; and rj=a capped absolute period return calculated using the formula: rj=min(d,|xj|); where: d=a contract period observation cap; and xj=a period return based on a formula of the group consisting of: x j = ln ? ( I j I j - 1 ) ; and ? ? x j = ( I j I j - 1 ) - 1 ; where: Ij=a reference index reported price/level j observation periods after an initial observation date/time. The periods can variable and measured in days, weeks, months, quarters and years. The instrument is traded at a market-determined price from creation through the date of expiration.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Inventor: Thong Wei Koh
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Patent number: 8721115Abstract: A light panel is disclosed. The light panel comprises a circuit assembly, a plurality of light sources, a light reflective structure, and a diffuser layer. The light reflective structure has a plurality of concaves, which are continuously connected to form a plurality of ridges. Each of the concaves has an opening formed on the bottom surface thereof, and each of the light sources is disposed corresponding to each of the openings of the concaves. The diffuser layer is supported by the ridges of the light reflective structure. In some aspects of the present invention, the diffuser layer may have a sloping inner surface or is coated with patterned diffuser coatings on the top surface. Each light source can be added with a lens.Type: GrantFiled: May 10, 2011Date of Patent: May 13, 2014Assignee: Luxingtek, Ltd.Inventors: Wen-Chiun Ing, Wei-Hsin Hou, Zhi-Wei Koh, Chi-Jen Kao
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Publication number: 20140129409Abstract: A financial instrument exchange, system and method based upon the intensity of an underlying index. The instrument having a predetermined formula for a settlement price based at least in part on the formula: AR = [ 1 N ? ? j = 1 N ? r j ] × C where: N=a number of total observation periods; C=a constant multiplier; and rj=an optional capped absolute period return calculated using the formula: rj=min(d,|xj|) if the Observation Cap is specified; or rj=|xj| if there is no Observation Cap or it is not specified; where: d=a contract period observation cap; and xj=a period return based on a formula of the group consisting of: x j = ln ? ( I j I j - 1 ) ; x j = ( I j I j - 1 ) - 1 ; and x j = I i - I j - 1 ; where: Ij=a reference index reported price/level j observation periods after an initial observation date/time. The periods can variable and measured in days, weeks, months, quarters and years.Type: ApplicationFiled: November 6, 2013Publication date: May 8, 2014Inventor: Thong Wei Koh
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Patent number: 8671049Abstract: A financial instrument exchange, system and method based upon the intensity of an underlying index. The instrument having a predetermined formula for a settlement price based at least in part on the formula: AR = [ 1 N ? ? j = 1 N ? r j ] × C where: N=a number of total observation periods; C=a constant multiplier; and rj=a capped absolute period return calculated using the formula: rj=min(d,|xj|); where: d=a contract period observation cap; and xj=a period return based on a formula of the group consisting of: x j = ln ? ( I j I j - 1 ) ; and x j = ( I j I j - 1 ) - 1 ; where: Ij=a reference index reported price/level j observation periods after an initial observation date/time. The periods can variable and measured in days, weeks, months, quarters and years. The instrument is traded at a market-determined price from creation through the date of expiration.Type: GrantFiled: August 1, 2013Date of Patent: March 11, 2014Inventor: Thong Wei Koh
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Publication number: 20130335761Abstract: To generate a proof of a printable item, a data structure is provided that maps a set of spot colors into a respective set of color values based on measurement data provided by a measurement device of colors printed by a printing system from the spot colors.Type: ApplicationFiled: February 2, 2011Publication date: December 19, 2013Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.Inventors: Kok-Wei Koh, Ingeborg Tastl, Fabio Giannetti
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Patent number: 8570559Abstract: A printing system and method include analyzing a plurality of properties of a document, and for each of a plurality of ink sets, calculating a metric for each of the properties.Type: GrantFiled: August 24, 2009Date of Patent: October 29, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kok-Wei Koh, Ehud Chatow, Gary J. Dispoto
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Patent number: 8553090Abstract: A portable image capture and camera device is provided including a device body, and an upper panel displaceably engaged to the body, and having an image capture module disposed thereon. A lower panel is also displaceably engaged to the body, for receiving and supporting a subject when the lower panel is deployed to an open position. The upper panel is translatable to deploy from a stowed position to a first deployed position to image a subject disposed on the lower panel (card reader mode), and to a second deployed position to image objects remote from the device (camera mode).Type: GrantFiled: September 8, 2006Date of Patent: October 8, 2013Assignee: Kingston Technology CorporationInventors: George Shiu, Wei Koh
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Publication number: 20130258360Abstract: A method of creating an ensemble of visible color reference patches first adds a set of starting colors to a queue. The process then finds a candidate color within a color selection zone that is furthest away from colors existing in the queue. This candidate color is then selected by placing it in the queue. The steps of finding and selecting are repeated until a target number of selected colors is reached. The process then generates visible color patches of the selected colors for forming the ensemble.Type: ApplicationFiled: March 29, 2012Publication date: October 3, 2013Inventors: Kok-Wei Koh, Nathan Moroney
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Publication number: 20130158929Abstract: Optical measurement device calibration systems and methods are disclosed. An exemplary method includes receiving calibration information from a plurality of optical measurement devices (200) at a central data store (124), the calibration information comprising at least real-time measurement data stored on the plurality of optical measurement devices, the plurality of optical measurement devices each at different print facilities. The method also includes analyzing at least one trend in the calibration information at the central data store. The method also includes issuing an instruction to at least one of the plurality of optical measurement devices to update a calibration parameter in the at least one optical measurement device based on the at least one trend.Type: ApplicationFiled: September 18, 2010Publication date: June 20, 2013Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Nathan Moroney, Ehud Chatow, Kok-Wei Koh
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Publication number: 20130141763Abstract: The present disclosure provides methods and systems for ganging print jobs (102-112) that use different dies. An exemplary embodiment provides a non-transitory, computer-readable medium that includes code configured to direct a processor to identify individual label printing jobs (102-112) that are similar, but use different dies. A combined, or ganged, print job (506) is then formed from the individual label printing jobs (102-112), wherein the ganged print job (506) uses a multi-format die (300).Type: ApplicationFiled: June 11, 2010Publication date: June 6, 2013Inventors: Fabio Giannetti, Kok-Wei Koh, Jose Manuel Perez, Benjamin I. Dempster, Alysha Naples
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Patent number: 8445297Abstract: A method of fabricating a chip may include the step of providing a first electrical part. The method may also include the step of forming a shell with the first electrical part embedded in a first side portion of the shell and a cavity in a second side portion of the shell. The method may include the step of testing the embedded first electrical part to determine whether the first electrical part is defective or functional. The method may also include the steps of providing a second electrical part, inserting the second electrical part within the cavity of the shell second side portion, establishing electrical communication between the first and second electrical parts if a test result of the first electrical part indicates that the first electrical part is functional, and finishing the chip. Also, the method may include the step of rejecting the first electrical part if the test result of the first electrical part indicates that the first electrical part is defective.Type: GrantFiled: September 28, 2009Date of Patent: May 21, 2013Assignee: Kingston Technology CorporationInventor: Wei Koh
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Publication number: 20130094033Abstract: The present disclosure provides methods and systems for aggregating print jobs of different lengths and/or customers to decrease the need for rewinding and splicing operations. An exemplary embodiment provides a method that comprises identifying individual label-printing jobs (1-8) that can be aggregated onto a roll of substrate (302), and forming an aggregated label-printing job (300). In the aggregated label-printing job (300) a longest print job (8) is imposed adjacent to a first end of the roll of substrate (302), and one or more shorter print jobs (2, 5, 7) are imposed adjacent to the longest print job (8) in the direction of a second end of the roll of substrate (302).Type: ApplicationFiled: June 11, 2010Publication date: April 18, 2013Inventors: Fabio Giannetti, Benjamin I. Dempster, Kok-Wei Koh, Alysha Naples, Jose Manuel Perez