Patents by Inventor Ricky Yik Hei Ngan
Ricky Yik Hei Ngan 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: 11935478Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: GrantFiled: March 15, 2023Date of Patent: March 19, 2024Assignee: Ignis Innovation Inc.Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Publication number: 20240070428Abstract: Aspects of the disclosure provide tracking tags. As an example, a tracking tag may include beacon transmission circuitry including one or more batteries, a frame configured to hold the one or more batteries in place, an adhesive arranged to secure the tracking tag to an object, and an activation mechanism configured to activate the tracking tag and cause the beacon transmission circuitry to transmit beacon signals in order to enable tracking of the object.Type: ApplicationFiled: August 1, 2023Publication date: February 29, 2024Inventors: Ricky Yik Hei Ngan, Phillip Yee, Connor Burgess, Dean Kawaguchi, Kin Seto, Russell Shikami
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Publication number: 20240070427Abstract: Aspects of the disclosure provide systems including linear material and tracking tags. A first tracking tag may be at least initially arranged on the liner material. The first tracking tag may also include beacon transmission circuitry including one or more batteries, a top layer, a bottom layer including an adhesive, and an activation mechanism. The activation mechanism may be configured to activate the first tracking tag and cause the beacon transmission circuitry to transmit beacon signals in order to enable tracking of the object.Type: ApplicationFiled: August 17, 2023Publication date: February 29, 2024Inventors: Shane Washburn, Jonathan Wilfong, Kin Seto, Haden Cory, Phillip Yee, Ricky Yik Hei Ngan, Dean Kawaguchi, Russell Shikami
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Publication number: 20230215370Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: ApplicationFiled: March 15, 2023Publication date: July 6, 2023Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Patent number: 11631371Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: GrantFiled: June 22, 2021Date of Patent: April 18, 2023Assignee: Ignis Innovation Inc.Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Publication number: 20220130329Abstract: A system for equalizing the pixels in an array of pixels that include semiconductor devices that age differently under different ambient and stress conditions. The system extracts at least one pixel parameter from the array; creates a stress pattern for the array, based on the extracted pixel parameter; stresses the pixels in accordance with the stress pattern; extracts the pixel parameter from the stressed pixels; determines whether the pixel parameter extracted from the stressed pixels is within a preselected range and, when the answer is negative, creates a second stress pattern for the array, based on the pixel parameter extracted from the stressed pixels, stresses the pixels in accordance with the second stress pattern, extracts the pixel parameter from the stressed pixels, and determines whether the pixel parameter extracted from the stressed pixels is within the preselected range.Type: ApplicationFiled: November 8, 2021Publication date: April 28, 2022Inventors: Gholamreza Chaji, Ricky Yik Hei Ngan, Nino Zahirovic
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Patent number: 11200839Abstract: A system for equalizing the pixels in an array of pixels that include semiconductor devices that age differently under different ambient and stress conditions. The system extracts at least one pixel parameter from the array; creates a stress pattern for the array, based on the extracted pixel parameter; stresses the pixels in accordance with the stress pattern; extracts the pixel parameter from the stressed pixels; determines whether the pixel parameter extracted from the stressed pixels is within a preselected range and, when the answer is negative, creates a second stress pattern for the array, based on the pixel parameter extracted from the stressed pixels, stresses the pixels in accordance with the second stress pattern, extracts the pixel parameter from the stressed pixels, and determines whether the pixel parameter extracted from the stressed pixels is within the preselected range.Type: GrantFiled: August 27, 2018Date of Patent: December 14, 2021Assignee: Ignis Innovation Inc.Inventors: Gholamreza Chaji, Ricky Yik Hei Ngan, Nino Zahirovic
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Publication number: 20210312863Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: ApplicationFiled: June 22, 2021Publication date: October 7, 2021Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Patent number: 11074859Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: GrantFiled: September 18, 2019Date of Patent: July 27, 2021Assignee: Ignis Innovation Inc.Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Patent number: 10713986Abstract: A system reads a desired circuit parameter from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. One embodiment of the extraction system turns off the drive device and supplies a predetermined voltage from an external source to the light emitting device, discharges the light emitting device until the light emitting device turns off, and then reads the voltage on the light emitting device while that device is turned off. The voltages on the light emitting devices in a plurality of pixel circuits may be read via the same external line, at different times.Type: GrantFiled: April 30, 2019Date of Patent: July 14, 2020Assignee: Ignis Innovation Inc.Inventors: Gholamreza Chaji, Ricky Yik Hei Ngan, Nino Zahirovic, Yaser Azizi
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Patent number: 10699638Abstract: A system for compensating for non-uniformities in an array of solid state devices in a display panel displays images in the panel, and extracts the outputs of a pattern based on structural non-uniformities of the panel, across the panel, for each area of the structural non-uniformities. Then the structural non-uniformities are quantified, based on the values of the extracted outputs, and input signals to the display panel are modified to compensate for the structural non-uniformities. Random non-uniformities are compensated by extracting low-frequency non-uniformities across the panel by applying patterns, and taking images of the pattern. The area and resolution of the image are adjusted to match the panel by creating values for pixels in the display, and then low-frequency non-uniformities across the panel are compensated, based on the created values.Type: GrantFiled: June 28, 2019Date of Patent: June 30, 2020Assignee: Ignis Innovation Inc.Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne, Baolin Tian, Allyson Giannikouris
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Patent number: 10573231Abstract: A system for compensating the input signals to arrays of pixels that include semiconductor devices that age differently under different ambient and stress conditions. The system creates a library of compensation curves for different stress conditions of the semiconductor devices; identifies the stress conditions for at least a selected one of the semiconductor devices based on the rate of change or absolute value of at least one parameter of at least the selected device; selects a compensation curve for the selected device based on the identified stress conditions; calculates compensation parameters for the selected device based on the selected compensation curve; and compensates an input signal for the selected device based on the calculated compensation parameters.Type: GrantFiled: January 10, 2018Date of Patent: February 25, 2020Assignee: Ignis Innovation Inc.Inventors: Gholamreza Chaji, Ricky Yik Hei Ngan, Nino Zahirovic
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Patent number: 10535294Abstract: A method and system control an OLED display to achieve desired color points and brightness levels in an array of pixels in which each pixel includes at least three sub-pixels having different colors and at least one white sub-pixel. The method and system select a plurality of reference points in the pixel content domain with known color points and brightness levels. For each set of three sub-pixels of different colors, the method and system determine the share of each sub-pixel to produce the color point and brightness level of each selected reference point, and select the maximum share determined for each sub-pixel as peak brightness needed from that sub-pixel.Type: GrantFiled: July 9, 2019Date of Patent: January 14, 2020Assignee: Ignis Innovation Inc.Inventors: Allyson Giannikouris, Jaimal Soni, Nino Zahirovic, Ricky Yik Hei Ngan, Gholamreza Chaji
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Publication number: 20200013335Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: ApplicationFiled: September 18, 2019Publication date: January 9, 2020Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Publication number: 20190333439Abstract: A method and system control an OLED display to achieve desired color points and brightness levels in an array of pixels in which each pixel includes at least three sub-pixels having different colors and at least one white sub-pixel. The method and system select a plurality of reference points in the pixel content domain with known color points and brightness levels. For each set of three sub-pixels of different colors, the method and system determine the share of each sub-pixel to produce the color point and brightness level of each selected reference point, and select the maximum share determined for each sub-pixel as peak brightness needed from that sub-pixel.Type: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Inventors: Allyson Giannikouris, Jaimal Soni, Nino Zahirovic, Ricky Yik Hei Ngan, Gholamreza Chaji
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Patent number: 10460660Abstract: The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.Type: GrantFiled: May 14, 2018Date of Patent: October 29, 2019Assignee: Ingis Innovation Inc.Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
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Publication number: 20190325798Abstract: A system reads a desired circuit parameter from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. One embodiment of the extraction system turns off the drive device and supplies a predetermined voltage from an external source to the light emitting device, discharges the light emitting device until the light emitting device turns off, and then reads the voltage on the light emitting device while that device is turned off. The voltages on the light emitting devices in a plurality of pixel circuits may be read via the same external line, at different times.Type: ApplicationFiled: April 30, 2019Publication date: October 24, 2019Inventors: Gholamreza Chaji, Ricky Yik Hei Ngan, Nino Zahirovic, Yaser Azizi
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Publication number: 20190318691Abstract: A system for compensating for non-uniformities in an array of solid state devices in a display panel displays images in the panel, and extracts the outputs of a pattern based on structural non-uniformities of the panel, across the panel, for each area of the structural non-uniformities. Then the structural non-uniformities are quantified, based on the values of the extracted outputs, and input signals to the display panel are modified to compensate for the structural non-uniformities. Random non-uniformities are compensated by extracting low-frequency non-uniformities across the panel by applying patterns, and taking images of the pattern. The area and resolution of the image are adjusted to match the panel by creating values for pixels in the display, and then low-frequency non-uniformities across the panel are compensated, based on the created values.Type: ApplicationFiled: June 28, 2019Publication date: October 17, 2019Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne, Baolin Tian, Allyson Giannikouris
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Patent number: 10395585Abstract: A method and system control an OLED display to achieve desired color points and brightness levels in an array of pixels in which each pixel includes at least three sub-pixels having different colors and at least one white sub-pixel. The method and system select a plurality of reference points in the pixel content domain with known color points and brightness levels. For each set of three sub-pixels of different colors, the method and system determine the share of each sub-pixel to produce the color point and brightness level of each selected reference point, and select the maximum share determined for each sub-pixel as peak brightness needed from that sub-pixel.Type: GrantFiled: November 27, 2017Date of Patent: August 27, 2019Assignee: Ignis Innovation Inc.Inventors: Allyson Giannikouris, Jaimal Soni, Nino Zahirovic, Ricky Yik Hei Ngan, Gholamreza Chaji
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Patent number: 10380944Abstract: A system for compensating for non-uniformities in an array of solid state devices in a display panel displays images in the panel, and extracts the outputs of a pattern based on structural non-uniformities of the panel, across the panel, for each area of the structural non-uniformities. Then the structural non-uniformities are quantified, based on the values of the extracted outputs, and input signals to the display panel are modified to compensate for the structural non-uniformities. Random non-uniformities are compensated by extracting low-frequency non-uniformities across the panel by applying patterns, and taking images of the pattern. The area and resolution of the image are adjusted to match the panel by creating values for pixels in the display, and then low-frequency non-uniformities across the panel are compensated, based on the created values.Type: GrantFiled: August 24, 2018Date of Patent: August 13, 2019Assignee: Ignis Innovation Inc.Inventors: Jaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne, Baolin Tian, Allyson Giannikouris