Patents by Inventor Jang-Zern Tsai

Jang-Zern Tsai 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: 11282197
    Abstract: The present disclosure provides an operating method of a system for analyzing brain tissue based on computerized tomographic imaging, and the operation method includes steps as follows. A computed tomography image of a subject is aligned to a predetermined standard brain space image, to obtain a first normalized test computed tomography image. A voxel contrast of the first normalized test computed tomography image is enhanced to obtain an enhanced first normalized test computed tomography image. The enhanced first normalized test computed tomography image is aligned to an average computed tomographic image of a control group to obtain a second normalized test computed tomography image. An analysis based on the second normalized test computed tomography image and a plurality of computerized tomographic images of the control group is performed to obtain a t-score map.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: March 22, 2022
    Assignees: National Central University, Taipei Medical University (TMU)
    Inventors: Syu-Jyun Peng, Yu-Wei Chen, Jing-Yu Yang, Jang-Zern Tsai, Kuo-Wei Wang, Yeh-Lin Kuo
  • Publication number: 20210256688
    Abstract: The present disclosure provides an operating method of a system for analyzing brain tissue based on computerized tomographic imaging, and the operation method includes steps as follows. A computed tomography image of a subject is aligned to a predetermined standard brain space image, to obtain a first normalized test computed tomography image. A voxel contrast of the first normalized test computed tomography image is enhanced to obtain an enhanced first normalized test computed tomography image. The enhanced first normalized test computed tomography image is aligned to an average computed tomographic image of a control group to obtain a second normalized test computed tomography image. An analysis based on the second normalized test computed tomography image and a plurality of computerized tomographic images of the control group is performed to obtain a t-score map.
    Type: Application
    Filed: July 14, 2020
    Publication date: August 19, 2021
    Inventors: Syu-Jyun PENG, Yu-Wei CHEN, Jing-Yu YANG, Jang-Zern TSAI, Kuo-Wei WANG, Yeh-Lin KUO
  • Patent number: 11042983
    Abstract: The present disclosure provides an operating method of an automatic brain infarction detection system on magnetic resonance imaging (MRI), which includes steps as follows. Images corresponding to different slices of a brain of a subject are received from the MRI machine. The image mask process is performed on first and second images of the images. It is determined whether the cerebellum image intensity and the brain image intensity in the first image are matched. When the cerebellum image intensity and the brain image intensity are not matched, the cerebellar image intensity in the first image is adjusted. The first image is processed through a nonlinear regression to obtain a third image. A neural network identify an infarct region by using the first, second and third images that are cut.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: June 22, 2021
    Assignees: National Central University, Taipei Medical University (TMU)
    Inventors: Jang-Zern Tsai, Syu-Jyun Peng, Yu-Wei Chen, Meng-Zong Tsai, Kuo-Wei Wang, Yeh-Lin Kuo
  • Patent number: 9466105
    Abstract: A magnetic resonance imaging white matter hyperintensities region recognizing method and system are disclosed herein. The white matter hyperintensities region recognizing method includes receiving and storing a FLAIR MRI image, a spin-lattice relaxation time weighted MRI image, and a diffusion weighted MRI image. Registration and fusion are preformed, and a white matter mask is determined. An intersection image of the FLAIR MRI image and the white matter mask is taken, a first region is determined after normalizing the intersection image, a cerebral infarct region is removed from the first image through the diffusion weighted MRI image, and then a determination is made as to whether to remove a remaining region in order to form a white matter hyperintensities region in the FLAIR MRI image.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: October 11, 2016
    Assignees: National Central University
    Inventors: Syu-Jyun Peng, Yu-Wei Chen, Jang-Zern Tsai, Kuo-Wei Wang
  • Patent number: 9412163
    Abstract: A method for detecting a cerebral infarct includes receiving an image of a brain of a subject from a magnetic resonance imaging scanner, wherein the image has a plurality of voxels, and each of the voxels has a voxel intensity. Then, the voxel intensities are normalized, wherein the normalized voxel intensities have a distribution peak, and the normalized voxel intensity of the distribution peak is Ipeak. A threshold is determined, which is the Ipeak+ a value. Voxel having the normalized voxel intensity larger than the threshold is selected, wherein the selected voxel is the cerebral infarct. A method for quantifying the cerebral infarct is also provided.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 9, 2016
    Assignees: National Central University
    Inventors: Syu-Jyun Peng, Jang-Zern Tsai, Yu-Wei Chen, Kuo-Wei Wang
  • Publication number: 20160196644
    Abstract: A magnetic resonance imaging white matter hyperintensities region recognizing method and system are disclosed herein. The white matter hyperintensities region recognizing method includes receiving and storing a FLAIR MRI image, a spin-lattice relaxation time weighted MRI image, and a diffusion weighted MRI image. Registration and fusion are preformed, and a white matter mask is determined. An intersection image of the FLAIR MRI image and the white matter mask is taken, a first region is determined after normalizing the intersection image, a cerebral infarct region is removed from the first image through the diffusion weighted MRI image, and then a determination is made as to whether to remove a remaining region in order to form a white matter hyperintensities region in the FLAIR MRI image.
    Type: Application
    Filed: May 18, 2015
    Publication date: July 7, 2016
    Inventors: Syu-Jyun PENG, Yu-Wei CHEN, Jang-Zern TSAI, Kuo-Wei WANG
  • Publication number: 20160035085
    Abstract: A method for detecting a cerebral infarct includes receiving an image of a brain of a subject from a magnetic resonance imaging scanner, wherein the image has a plurality of voxels, and each of the voxels has a voxel intensity. Then, the voxel intensities are normalized, wherein the normalized voxel intensities have a distribution peak, and the normalized voxel intensity of the distribution peak is Ipeak. A threshold is determined, which is the Ipeak+ a value. Voxel having the normalized voxel intensity larger than the threshold is selected, wherein the selected voxel is the cerebral infarct. A method for quantifying the cerebral infarct is also provided.
    Type: Application
    Filed: March 10, 2015
    Publication date: February 4, 2016
    Inventors: Syu-Jyun PENG, Jang-Zern TSAI, Yu-Wei CHEN, Kuo-Wei WANG
  • Patent number: 9080939
    Abstract: A method of measuring a glycosylated protein proportion by an AC impedance method includes passing an AC voltage or AC to two inspecting electrodes; covering a solution containing glycosylated protein completely onto the inspecting electrodes; measuring an impedance value between the electrodes and calculating the difference between the impedance value and an impedance value of a solution without glycosylated protein by an AC impedance inspection device; comparing the impedance difference with AC impedance difference/glycosylated protein concentration to obtain the proportion of the glycosylated protein in the solution containing glycosylated protein.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 14, 2015
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Jang-Zern Tsai, Ching-Jung Chen, Yung-Nien Wei
  • Patent number: 8583207
    Abstract: An audio/video recording method and device for recording a main audio/video file and at least one index audio/video file corresponding to the main audio/video file. A section of the index audio/video files can be transformed into text data serving as a portion of file names of the main audio/video file. When a user collates or uses the main audio/video file, the index audio/video file is used to accelerate distinguishing what the main audio/video files are, thereby facilitating searching, classification and management of the main audio/video file effectively.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: November 12, 2013
    Assignee: National Central University
    Inventors: Jang-Zern Tsai, Cheng-Deng Kuo, Ssu-Hsien Chuang, Ping-Hsiang Tsai
  • Publication number: 20130233727
    Abstract: A method of measuring a glycosylated protein proportion by an AC impedance method includes passing an AC voltage or AC to two inspecting electrodes; covering a solution containing glycosylated protein completely onto the inspecting electrodes; measuring an impedance value between the electrodes and calculating the difference between the impedance value and an impedance value of a solution without glycosylated protein by an AC impedance inspection device; comparing the impedance difference with AC impedance difference/glycosylated protein concentration to obtain the proportion of the glycosylated protein in the solution containing glycosylated protein.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 12, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Jang-Zern TSAI, Ching-Jung CHEN, Yung-Nien WEI
  • Patent number: 8272738
    Abstract: An apparatus and a method for recognizing a person's gaze are disclosed, where the apparatus includes a main body, an eye-movement detector, a data generator and a transmitter, where the main body has the specific area. The eye-movement detector can detect whether a gaze is fixed on the specific area. The data generator can generate gaze data when the gaze is fixed on the specific area. The transmitter can transmit the gaze data to terminal equipment, so that the terminal equipment can receive information that the gaze is fixed on the specific area based on the gaze data, so that the terminal equipment can provide a prompt based on the gaze data.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: September 25, 2012
    Assignee: National Central University
    Inventors: Wen-Yih Chen, Jang-Zern Tsai
  • Publication number: 20100220290
    Abstract: An apparatus and a method for recognizing a person's gaze are disclosed, where the apparatus includes a main body, an eye-movement detector, a data generator and a transmitter, where the main body has the specific area. The eye-movement detector can detect whether a gaze is fixed on the specific area. The data generator can generate gaze data when the gaze is fixed on the specific area. The transmitter can transmit the gaze data to terminal equipment, so that the terminal equipment can receive information that the gaze is fixed on the specific area based on the gaze data, so that the terminal equipment can provide a prompt based on the gaze data.
    Type: Application
    Filed: September 21, 2009
    Publication date: September 2, 2010
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Wen-Yih Chen, Jang-Zern Tsai
  • Publication number: 20090226150
    Abstract: An audio/video recording method and device for recording a main audio/video file and at least one index audio/video file corresponding to the main audio/video file. A section of the index audio/video files can be transformed into text data serving as a portion of file names of the main audio/video file. When a user collates or uses the main audio/video file, the index audio/video file is used to accelerate distinguishing what the main audio/video files are, thereby facilitating searching, classification and management of the main audio/video file effectively.
    Type: Application
    Filed: November 4, 2008
    Publication date: September 10, 2009
    Inventors: Jang-Zern TSAI, Cheng-Deng Kuo, Ssu-Hsien Chuang, Ping-Hsiang Tsai
  • Patent number: 6480664
    Abstract: Tape formatting, tracking and trick mode data generation are disclosed for providing trick modes for compressed video stored on a video tape. The tape is formatted so that trick mode data is recorded at normal speed within certain areas delineated by predetermined boundaries that are within a maintainable range of a predetermined ideal scan path of the heads. These boundaries are oblique to the normal speed tracks and define trick mode data areas in which trick mode data may be recorded. To facilitate tracking, sync words and trick mode identification codes are interleaved within the trick mode data areas. During tracking, the heads reproduce the sync words and identification codes, and the identification codes that match the currently utilized trick mode are counted. The count during a current interval is compared to a count during a previous interval or a threshold to determine if the heads have locked onto the ideal scan path or deviated therefrom.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: November 12, 2002
    Inventors: Hou-Chun Ting, Hsueh-Ming Hang, Jang-Zern Tsai, Chien-Chen Liang
  • Patent number: 5978542
    Abstract: Tape formatting, tracking and trick mode data generation are disclosed for providing trick modes for compressed video stored on a video tape. The tape is formatted so that trick mode data is recorded at normal speed within certain areas delineated by predetermined boundaries that are within a maintainable range of a predetermined ideal scan path of the heads. These boundaries are oblique to the normal speed tracks and define trick mode data areas in which trick mode data may be recorded. To facilitate tracking, sync words and trick mode identification codes are interleaved within the trick mode data areas. During tracking, the heads reproduce the sync words and identification codes, and the identification codes that match the currently utilized trick mode are counted. The count during a current interval is compared to a count during a previous interval or a threshold to determine if the heads have locked onto the ideal scan path or deviated therefrom.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: November 2, 1999
    Assignee: Industrial Technology Research Institute
    Inventors: Hou-Chun Ting, Hsueh-Ming Hang, Jang-Zern Tsai, Chien-Chen Liang
  • Patent number: 5647048
    Abstract: Tape formatting, tracking and trick mode data generation provide trick modes for compressed video stored on a video tape. The tape is formatted so that trick mode data is recorded at normal speed within certain areas delineated by predetermined boundaries that are within a maintainable range of a predetermined ideal scan path of the heads. These boundaries are oblique to the normal speed tracks and define trick mode data areas in which trick mode data may be recorded. To facilitate tracking, sync words and trick mode identification codes are interleaved within the trick mode data areas. During tracking, the heads reproduce the sync words and identification codes, and the identification codes that match the currently utilized trick mode are counted. The count during a current interval is compared to a count during a previous interval or a threshold to determine if the heads have locked onto the ideal can path or deviated therefrom.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 8, 1997
    Assignee: Industrial Technology Research Institute
    Inventors: Hou-Chun Ting, Hsueh-Ming Hang, Jang-Zern Tsai, Chien-Chen Liang
  • Patent number: 5644446
    Abstract: In digital signal recording/reproducing apparatus, the reproduced signal is utilized to determine the magnetic recording head position on a magnetic track. The reproduced signal is processed to detect any error and to produce a reference signal for the magnetic head to be positioned over the magnetic track, thus accomplishing the function of "after recording".
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: July 1, 1997
    Assignee: Industrial Technology Research Institute
    Inventors: Jang-Zern Tsai, Jyh Yuan
  • Patent number: 5499147
    Abstract: A method and tape recorder apparatus are disclosed for recording a signal on a tape. The tape recorder apparatus is provided with a memory for storing a signal to be recorded on a tape. The tape recorder apparatus has a recording head for recording the signal stored in the memory. The tape recorder apparatus also has a playback head for reproducing the signal recorded by the recording head on the tape. Furthermore, the tape recorder apparatus has a comparison circuit for comparing the signal reproduced by the playback head with the signal stored in the memory. Depending on errors identified by the comparison circuit in the reproduced signal, the signal in the memory is re-recorded on the tape.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: March 12, 1996
    Assignee: Industrial Technology Research Institute
    Inventors: Jang-Zern Tsai, Chin-Chuan Liang