Patents by Inventor Wai Mun Wong
Wai Mun Wong 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: 11676018Abstract: A method of feature extraction from an image can include receiving the image including pixels, generating confidence values corresponding to positions of the pixels in the image by an artificial intelligence (AI) based feature extractor, selecting a first position among the positions of the pixels in the image, a first confidence value among the generated confidence values at the first position being higher than a first threshold, and generating a final set of keypoint-descriptor pairs based on the confidence values corresponding to positions of the pixels in the image. The final set of keypoint-descriptor pairs includes at least two keypoint-descriptor pairs corresponding to the first position among the positions of the pixels in the image.Type: GrantFiled: January 29, 2021Date of Patent: June 13, 2023Assignee: MEDIATEK INC.Inventors: Chia-Da Lee, Wai Mun Wong, Pei-Kuei Tsung
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Publication number: 20230087097Abstract: A booster engine enhances the quality of a frame sequence. The booster engine receives, from a first stage circuit, the frame sequence with quality degradation in at least a frame. The the quality degradation includes at least one of uneven resolution and uneven frame per second (FPS). The booster engine queries an information repository for reference information on the frame, using a query input based on at least a region of the frame to obtain a query output. The booster engine then applies a neural network to the query input and the query output to generate an optimized frame, and sends an enhanced frame sequence including the optimized frame to a second stage circuit.Type: ApplicationFiled: September 7, 2022Publication date: March 23, 2023Inventors: Yao-Sheng Wang, Pei-Kuei Tsung, Chiani Lu, Chao-Min Chang, Yu-Sheng Lin, Wai Mun Wong
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Publication number: 20230067568Abstract: The quality of a frame sequence is enhanced by a booster engine collaborating with a first stage circuit. The first stage circuit adjusts the quality degradation of the frame sequence when a condition in constrained resources is detected. The quality degradation includes at least one of uneven resolution and uneven frame per second (FPS). The booster engine receives the frame sequence from the first stage circuit, and generates an enhanced frame sequence based on the frame sequence for transmission to a second stage circuit.Type: ApplicationFiled: August 24, 2022Publication date: March 2, 2023Inventors: Yao-Sheng Wang, Pei-Kuei Tsung, Chiung-Fu Chen, Wai Mun Wong, Chao-Min Chang, Yu-Sheng Lin, Chiani Lu, Chih-Cheng Chen
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Publication number: 20230053776Abstract: A system collects a training dataset for training an artificial intelligence (AI) model. The system receives high-resolution (HR) images and information of one or more regions-of-interest (ROIs) in the HR images. The system maps a stride distribution to the ROIs, and samples the HR images with non-uniform strides according to the ROIs and the stride distribution to generate corresponding low-resolution (LR) images. The system then trains the AI model to perform super-resolution (SR) operations using training pairs formed by the HR images and respective corresponding LR images.Type: ApplicationFiled: July 21, 2022Publication date: February 23, 2023Inventors: Wai Mun Wong, Chia-Da Lee, Cheng Lung Jen, Chun Chen Lin, Shih-Che Chen, Pei-Kuei Tsung
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Publication number: 20210241022Abstract: A method of feature extraction from an image can include receiving the image including pixels, generating confidence values corresponding to positions of the pixels in the image by an artificial intelligence (AI) based feature extractor, selecting a first position among the positions of the pixels in the image, a first confidence value among the generated confidence values at the first position being higher than a first threshold, and generating a final set of keypoint-descriptor pairs based on the confidence values corresponding to positions of the pixels in the image. The final set of keypoint-descriptor pairs includes at least two keypoint-descriptor pairs corresponding to the first position among the positions of the pixels in the image.Type: ApplicationFiled: January 29, 2021Publication date: August 5, 2021Applicant: MEDIATEK INC.Inventors: Chia-Da LEE, Wai Mun WONG, Pei-Kuei TSUNG
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Patent number: 10618301Abstract: In an example implementation, a method of operating a fluid sensing device includes enabling a fluid level sensing circuit on a printhead to determine a fluid level by sharing an applied charge between a capacitive sensor and a reference capacitor to determine a capacitance value of the capacitive sensor. The method includes enabling a fluid property sensing circuit on the printhead to determine a fluid property by measuring a transistor voltage that indicates a concentration of ions gathered on the capacitive sensor.Type: GrantFiled: July 24, 2015Date of Patent: April 14, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ning Ge, Leong Yap Chia, Wai Mun Wong, Ser Chia Koh
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Patent number: 10224335Abstract: The present subject matter relates to an integrated circuit comprising an erasable programmable read only memory (EPROM) array having a plurality of EPROM cells disposed in rows and columns, wherein one or more EPROM cells located at predetermined positions in the EPROM array are selectively dischargeable. The one or more EPROM cells comprise a EPROM transistor having a first conductive layer to store electrons upon the EPROM transistor being programmed and a control metal oxide semiconductor field-effect transistor (MOSFET) electrically connected to the first conductive layer to provide an electron leakage path to dissipate the electrons stored in the first conductive layer in a predetermined leak time period.Type: GrantFiled: January 29, 2015Date of Patent: March 5, 2019Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Wai Mun Wong, Leong Yap Chia, Ning Ge
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Patent number: 10173420Abstract: The present subject matter relates to a printhead assembly comprising a plurality of print nozzles in a nozzle array. Each of the plurality of print nozzles is coupled to a printhead firing resistor, the printhead firing resistor being individually addressable. A print control circuit is to actuate the printhead firing resistor. In accordance with one example implementation of the present subject matter, the print control circuit comprises pull-down resistors made of Tantalum-Aluminum (Ta—Al).Type: GrantFiled: July 30, 2015Date of Patent: January 8, 2019Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Wai Mun Wong, Leong Yap Chia, Ning Ge
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Patent number: 10170180Abstract: A memory cell includes an input coupled to a read line, an output coupled to a circuit ground, a bi-polar memristor, and at least one address switch coupled to an address line to select the memory cell. A memory includes the bi-polar memristor and a one-way current conducting device, wherein the one-way current conducting device is positioned between the memristor cell output and the circuit ground, or between the read line and the memristor cell input.Type: GrantFiled: April 30, 2015Date of Patent: January 1, 2019Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning Ge, Wai Mun Wong, Leong Yap Chia, Ser Chia Koh
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Patent number: 10081178Abstract: Addressing an EPROM on a printhead is described. In an example, a printhead includes an electronically programmable read-only memory (EPROM) having a plurality of cells arranged in rows and columns, each of the cells having a addressing port, a row select port, and a column select port. A conductor is coupled to the addressing portion of each of the plurality of cells. A column shift register is coupled to the column select ports of the plurality of cells, the column shift register having a register location for each column of the plurality of cells and having an input to receive a first input signal. A row shift register is coupled to row select ports of the plurality of cells, the row shift register having a register location for each row of the plurality of cells and having an input to receive a second input signal.Type: GrantFiled: January 23, 2018Date of Patent: September 25, 2018Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning Ge, Leong Yap Chia, Wai Mun Wong
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Patent number: 10071552Abstract: In an example, a device for sensing a property of a fluid may include an ion-sensitive field effect transistor (ISFET) having a gate, a source, and a drain. The device may also include a first metal element in contact with the gate and a switching layer in contact with the first metal layer. A resistance state of the switching layer is to be modified through application of an electrical field of at least a predefined strength through the switching layer and is to be retained in the switching layer following removal of the electrical field. The device may also include a metal plate in contact with the switching layer, in which the metal plate is to directly contact the fluid for which the property is to be sensed.Type: GrantFiled: April 30, 2015Date of Patent: September 11, 2018Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning Ge, Zhiyong Li, Leong Yap Chia, Wai Mun Wong
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Patent number: 10026476Abstract: A circuit comprising an input, a ground, a first switch, a second switch and a bi-polar memristor, wherein the first switch is a first transistor and a gate of the first transistor is connected to a line to instruct setting of the bi-polar memristor, and the second switch is a second transistor and a gate of the second transistor is connected to a line to instruct re-setting of the bi-polar memristor.Type: GrantFiled: November 25, 2014Date of Patent: July 17, 2018Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Leong Yap Chia, Ning Ge, Wai Mun Wong
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Publication number: 20180147839Abstract: Addressing an EPROM on a printhead is described. In an example, a printhead includes an electronically programmable read-only memory (EPROM) having a plurality of cells arranged in rows and columns, each of the cells having a addressing port, a row select port, and a column select port. A conductor is coupled to the addressing portion of each of the plurality of cells. A column shift register is coupled to the column select ports of the plurality of cells, the column shift register having a register location for each column of the plurality of cells and having an input to receive a first input signal. A row shift register is coupled to row select ports of the plurality of cells, the row shift register having a register location for each row of the plurality of cells and having an input to receive a second input signal.Type: ApplicationFiled: January 23, 2018Publication date: May 31, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning Ge, Leong Yap Chia, Wai Mun Wong
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Publication number: 20180134037Abstract: The present subject matter relates to a printhead assembly comprising a plurality of print nozzles in a nozzle array. Each of the plurality of print nozzles is coupled to a printhead firing resistor, the printhead firing resistor being individually addressable. A print control circuit is to actuate the printhead firing resistor. In accordance with one example implementation of the present subject matter, the print control circuit comprises pull-down resistors made of Tantalum-Aluminum (Ta—Al).Type: ApplicationFiled: July 30, 2015Publication date: May 17, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Wai Mun Wong, Leong Yap Chia, Ning Ge
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Patent number: 9919517Abstract: Addressing an EPROM on a printhead is described. In an example, a printhead includes an electronically programmable read-only memory (EPROM) having a plurality of cells arranged in rows and columns, each of the cells having a addressing port, a row select port, and a column select port. A conductor is coupled to the addressing portion of each of the plurality of cells. A column shift register is coupled to the column select ports of the plurality of cells, the column shift register having a register location for each column of the plurality of cells and having an input to receive a first input signal. A row shift register is coupled to row select ports of the plurality of cells, the row shift register having a register location for each row of the plurality of cells and having an input to receive a second input signal.Type: GrantFiled: January 17, 2014Date of Patent: March 20, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ning Ge, Leong Yap Chia, Wai Mun Wong
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Publication number: 20180009224Abstract: In an example, a device for sensing a property of a fluid may include an ion-sensitive field effect transistor (ISFET) having a gate, a source, and a drain. The device may also include a first metal element in contact with the gate and a switching layer in contact with the first metal layer. A resistance state of the switching layer is to be modified through application of an electrical field of at least a predefined strength through the switching layer and is to be retained in the switching layer following removal of the electrical field. The device may also include a metal plate in contact with the switching layer, in which the metal plate is to directly contact the fluid for which the property is to be sensed.Type: ApplicationFiled: April 30, 2015Publication date: January 11, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning GE, Zhiyong Li, Leong Yap Chia, Wai Mun Wong
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Publication number: 20180012654Abstract: A memory cell includes an input coupled to a read line, an output coupled to a circuit ground, a bi-polar memristor, and at least one address switch coupled to an address line to select the memory cell. A memory includes the bi-polar memristor and a one-way current conducting device, wherein the one-way current conducting device is positioned between the memristor cell output and the circuit ground, or between the read line and the memristor cell input.Type: ApplicationFiled: April 30, 2015Publication date: January 11, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning GE, Wai Mun Wong, Leong Yap Chia, Ser Chia Koh
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Publication number: 20180012900Abstract: The present subject matter relates to an integrated circuit comprising an erasable programmable read only memory (EPROM) array having a plurality of EPROM cells disposed in rows and columns, wherein one or more EPROM cells located at predetermined positions in the EPROM array are selectively dischargeable. The one or more EPROM cells comprise a EPROM transistor having a first conductive layer to store electrons upon the EPROM transistor being programmed and a control metal oxide semiconductor field-effect transistor (MOSFET) electrically connected to the first conductive layer to provide an electron leakage path to dissipate the electrons stored in the first conductive layer in a predetermined leak time period.Type: ApplicationFiled: January 29, 2015Publication date: January 11, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Wai Mun Wong, Leong Yap Chia, Ning Ge
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Publication number: 20170243645Abstract: A circuit comprising an input, a ground, a first switch, a second switch and a bi-polar memristor, wherein the first switch is a first transistor and a gate of the first transistor is connected to a line to instruct setting of the bi-polar memristor, and the second switch is a second transistor and a gate of the second transistor is connected to a line to instruct re-setting of the bi-polar memristor.Type: ApplicationFiled: November 25, 2014Publication date: August 24, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Leong Yap Chia, Ning Ge, Wai Mun Wong
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Publication number: 20160332439Abstract: Addressing an EPROM on a printhead is described. In an example, a printhead includes an electronically programmable read-only memory (EPROM) having a plurality of cells arranged in rows and columns, each of the cells having a addressing port, a row select port, and a column select port. A conductor is coupled to the addressing portion of each of the plurality of cells, A column shift register is coupled to the column select ports of the plurality of cells, the column shift register having a register location for each column of the plurality of cells and having an input to receive a first input signal. A row shift register is coupled to row select ports of the plurality of cells, the row shift register having a register location for each row of the plurality of cells and having an input to receive a second input signal.Type: ApplicationFiled: January 17, 2014Publication date: November 17, 2016Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning GE, Leong Yap CHIA, Wai Mun WONG