Patents by Inventor Ming-Kai Hsu

Ming-Kai Hsu 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).

  • Patent number: 11106396
    Abstract: A memory apparatus and compensation method for a computation result thereof are provided. The memory apparatus includes a memory sub-block, a reference memory sub-block and a control circuit. During a computation phase, the memory sub-block receives an input signal, and generates a computation result by a multiply-accumulate operation according to the input signal. The reference memory sub-block includes a plurality of memory cells pre-programmed with a reference weight value. The reference memory sub-block receives a reference input signal during a calibration phase, and generates a reference computation value by a multiply-accumulate operation according to the reference input signal and the reference weight value. The control circuit generates an adjustment value according to the reference computation value and a standard computation value, and during the computation phase, adjusts the computation result according to the adjustment value to generate an adjusted computation result.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: August 31, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Po-Kai Hsu, Teng-Hao Yeh, Ming-Liang Wei, Hang-Ting Lue
  • Patent number: 9842280
    Abstract: A system for evaluating a classifier of an image signal processor (ISP) includes (i) a microprocessor and (ii) memory storing training images, the microprocessor being capable of sending each training image to the ISP. The system includes machine-readable instructions stored within the memory and executed by the microprocessor capable of: (i) selecting a subset of images based upon a divider position, (ii) controlling the ISP to classify each image as belonging or not belonging to an object class, (iii) determining a positive-match count, (iv) determining an error count based upon the positive-match count and total number of training images belonging to the object class, (v) repeating, for other divider positions, steps of selecting, controlling, and determining to identify an optimal divider position and a minimum-error count; and (vi) determining the classifier's optimality by comparing the optimal divider position to a predetermined optimal divider position and a predetermined minimum-error count.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: December 12, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventor: Ming Kai Hsu
  • Patent number: 9674465
    Abstract: Embodiments of an apparatus and process are described. The process includes capturing a first image frame using an image sensor, the image sensor including a pixel array comprising a plurality of pixels arranged in rows and columns and a color filter array optically coupled to the pixel array. A region of interest within the first image frame is determined, and the exposure time of the image sensor is adjusted to eliminate a substantial fraction of the visible light captured by the image sensor. A rolling shutter procedure is used with the pixel array to capture at least one subsequent frame using the adjusted exposure time, and a source of invisible radiation is activated while the rolling shutter enters the region of interest and deactivated when the rolling shutter exits the region of interest. Finally, an image of the region of interest is output. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: June 6, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Jizhang Shan, Ming-Kai Hsu
  • Publication number: 20170124429
    Abstract: A system for evaluating a classifier of an image signal processor (ISP) includes (i) a microprocessor and (ii) memory storing training images, the microprocessor being capable of sending each training image to the ISP. The system includes machine-readable instructions stored within the memory and executed by the microprocessor capable of: (i) selecting a subset of images based upon a divider position, (ii) controlling the ISP to classify each image as belonging or not belonging to an object class, (iii) determining a positive-match count, (iv) determining an error count based upon the positive-match count and total number of training images belonging to the object class, (v) repeating, for other divider positions, steps of selecting, controlling, and determining to identify an optimal divider position and a minimum-error count; and (vi) determining the classifier's optimality by comparing the optimal divider position to a predetermined optimal divider position and a predetermined minimum-error count.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 4, 2017
    Inventor: Ming Kai Hsu
  • Patent number: 9628735
    Abstract: An imaging system with single-photon-avalanche-diodes (SPADs) and sensor translation for capturing a plurality of first images to enable generation of an enhanced-resolution image includes (a) an image sensor with SPAD pixels for capturing the plurality of first images at a plurality of spatially shifted positions of the image sensor, respectively, and (b) an actuator for translating the image sensor, parallel to its light receiving surface, to place the image sensor at the plurality of spatially shifted positions. A method for capturing a plurality of first images that enable composition of an enhanced-resolution image includes (a) translating an image sensor parallel to its light receiving surface to place the image sensor at a plurality of spatially shifted positions, and (b) capturing, using SPAD pixels implemented in pixel array of the image sensor, the plurality of first images at the plurality of spatially shifted positions, respectively.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: April 18, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Bowei Zhang, Ming-Kai Hsu
  • Publication number: 20160373676
    Abstract: An imaging system with single-photon-avalanche-diodes (SPADs) and sensor translation for capturing a plurality of first images to enable generation of an enhanced-resolution image includes (a) an image sensor with SPAD pixels for capturing the plurality of first images at a plurality of spatially shifted positions of the image sensor, respectively, and (b) an actuator for translating the image sensor, parallel to its light receiving surface, to place the image sensor at the plurality of spatially shifted positions. A method for capturing a plurality of first images that enable composition of an enhanced-resolution image includes (a) translating an image sensor parallel to its light receiving surface to place the image sensor at a plurality of spatially shifted positions, and (b) capturing, using SPAD pixels implemented in pixel array of the image sensor, the plurality of first images at the plurality of spatially shifted positions, respectively.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 22, 2016
    Inventors: Bowei Zhang, Ming-Kai Hsu
  • Publication number: 20160360124
    Abstract: Embodiments of an apparatus and process are described. The process includes capturing a first image frame using an image sensor, the image sensor including a pixel array comprising a plurality of pixels arranged in rows and columns and a color filter array optically coupled to the pixel array. A region of interest within the first image frame is determined, and the exposure time of the image sensor is adjusted to eliminate a substantial fraction of the visible light captured by the image sensor. A rolling shutter procedure is used with the pixel array to capture at least one subsequent frame using the adjusted exposure time, and a source of invisible radiation is activated while the rolling shutter enters the region of interest and deactivated when the rolling shutter exits the region of interest. Finally, an image of the region of interest is output. Other embodiments are disclosed and claimed.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 8, 2016
    Inventors: Jizhang Shan, Ming-Kai Hsu
  • Patent number: 9444999
    Abstract: A feature detection process includes identifying an approximate location of a feature in a preliminary image. A gradient phase map of image pixel intensities within the approximate location is computed. A projection result is determined by applying a projection function to the gradient phase map. The projection result is analyzed to determine a state of the feature.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: September 13, 2016
    Assignee: OmniVision Technologies, Inc.
    Inventor: Ming-Kai Hsu
  • Publication number: 20160044237
    Abstract: A feature detection process includes identifying an approximate location of a feature in a preliminary image. A gradient phase map of image pixel intensities within the approximate location is computed. A projection result is determined by applying a projection function to the gradient phase map. The projection result is analyzed to determine a state of the feature.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 11, 2016
    Inventor: Ming-Kai Hsu
  • Publication number: 20150023601
    Abstract: A method and a system of identifying deformable objects in digital images using processing circuitry are disclosed. The method includes partitioning, using the processing circuitry, a composite image into M composite blocks. An input image is partitioned into M input blocks. Each input block is paired with a corresponding composite block. Image properties of each composite block and each input block are analyzed. The image properties of each input block are compared with its corresponding composite block. A structural similarity value for each pair of input and composite blocks is generated in response to comparing the image properties. An aggregate structural similarity value is determined based on the structural similarity values. A deformable object category of the input image is identified based on the aggregate structural similarity value.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventor: Ming-Kai Hsu
  • Patent number: 8928218
    Abstract: A dielectric barrier discharge lamp includes a lamp tube, a discharge gas, a support member, a first electrode, and a second electrode. The lamp tube has a first and a second sealed end. The discharge gas is filled in the lamp tube. The support member is disposed at the first sealed end and extended toward the inside of the lamp tube. The support member has an accommodating space with its opening facing the inside of the lamp tube. The first electrode is disposed in the lamp tube. A first terminal of the first electrode passes through the opening of the accommodating space. A gap exists between an end of the first terminal of the first electrode and a closed end of the accommodating space. A second terminal of the first electrode penetrates and is closely fitted with the second sealed end. The second electrode is disposed outside the lamp tube.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: January 6, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Bee-Yu Wei, Jen-Hung Hsu, Ming-Kai Hsu, Chun-Mu Chen
  • Publication number: 20140125217
    Abstract: A dielectric barrier discharge lamp includes a lamp tube, a discharge gas, a support member, a first electrode, and a second electrode. The lamp tube has a first and a second sealed end. The discharge gas is filled in the lamp tube. The support member is disposed at the first sealed end and extended toward the inside of the lamp tube. The support member has an accommodating space with its opening facing the inside of the lamp tube. The first electrode is disposed in the lamp tube. A first terminal of the first electrode passes through the opening of the accommodating space. A gap exists between an end of the first terminal of the first electrode and a closed end of the accommodating space. A second terminal of the first electrode penetrates and is closely fitted with the second sealed end. The second electrode is disposed outside the lamp tube.
    Type: Application
    Filed: April 3, 2013
    Publication date: May 8, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Bee-Yu Wei, Jen-Hung Hsu, Ming-Kai Hsu, Chun-Mu Chen
  • Publication number: 20130119859
    Abstract: A gas discharge lamp including a crystal tube, a connecting portion and a metal electrode rod is provided. The crystal tube includes at least one terminal portion and an axial segment. The terminal portion is located at an end of the axial segment. The connecting portion is constituted by N glass ring bands. The glass ring bands are connected to the terminal portion along the axial line in sequence. The first glass ring band connected to the terminal portion has a first coefficient of thermal expansion. The metal electrode rod is embedded in the terminal portion, and an end of the metal electrode rod away from the terminal portion is connected to the Nth glass ring band. The Nth glass ring band has a second coefficient of thermal expansion greater than the first coefficient of thermal expansion.
    Type: Application
    Filed: August 16, 2012
    Publication date: May 16, 2013
    Inventors: Ming-Kai Hsu, Jen-Hung Hsu