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).
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Patent number: 11282197Abstract: 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: GrantFiled: July 14, 2020Date of Patent: March 22, 2022Assignees: 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
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Publication number: 20210256688Abstract: 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: ApplicationFiled: July 14, 2020Publication date: August 19, 2021Inventors: Syu-Jyun PENG, Yu-Wei CHEN, Jing-Yu YANG, Jang-Zern TSAI, Kuo-Wei WANG, Yeh-Lin KUO
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Patent number: 11042983Abstract: 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: GrantFiled: May 27, 2020Date of Patent: June 22, 2021Assignees: 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
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Patent number: 9466105Abstract: 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: GrantFiled: May 18, 2015Date of Patent: October 11, 2016Assignees: National Central UniversityInventors: Syu-Jyun Peng, Yu-Wei Chen, Jang-Zern Tsai, Kuo-Wei Wang
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Patent number: 9412163Abstract: 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: GrantFiled: March 10, 2015Date of Patent: August 9, 2016Assignees: National Central UniversityInventors: Syu-Jyun Peng, Jang-Zern Tsai, Yu-Wei Chen, Kuo-Wei Wang
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Publication number: 20160196644Abstract: 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: ApplicationFiled: May 18, 2015Publication date: July 7, 2016Inventors: Syu-Jyun PENG, Yu-Wei CHEN, Jang-Zern TSAI, Kuo-Wei WANG
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Publication number: 20160035085Abstract: 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: ApplicationFiled: March 10, 2015Publication date: February 4, 2016Inventors: Syu-Jyun PENG, Jang-Zern TSAI, Yu-Wei CHEN, Kuo-Wei WANG
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Patent number: 9080939Abstract: 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: GrantFiled: March 6, 2013Date of Patent: July 14, 2015Assignee: NATIONAL CENTRAL UNIVERSITYInventors: Jang-Zern Tsai, Ching-Jung Chen, Yung-Nien Wei
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Patent number: 8583207Abstract: 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: GrantFiled: November 4, 2008Date of Patent: November 12, 2013Assignee: National Central UniversityInventors: Jang-Zern Tsai, Cheng-Deng Kuo, Ssu-Hsien Chuang, Ping-Hsiang Tsai
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Publication number: 20130233727Abstract: 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: ApplicationFiled: March 6, 2013Publication date: September 12, 2013Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Jang-Zern TSAI, Ching-Jung CHEN, Yung-Nien WEI
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Patent number: 8272738Abstract: 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: GrantFiled: September 21, 2009Date of Patent: September 25, 2012Assignee: National Central UniversityInventors: Wen-Yih Chen, Jang-Zern Tsai
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Publication number: 20100220290Abstract: 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: ApplicationFiled: September 21, 2009Publication date: September 2, 2010Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Wen-Yih Chen, Jang-Zern Tsai
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Publication number: 20090226150Abstract: 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: ApplicationFiled: November 4, 2008Publication date: September 10, 2009Inventors: Jang-Zern TSAI, Cheng-Deng Kuo, Ssu-Hsien Chuang, Ping-Hsiang Tsai
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Patent number: 6480664Abstract: 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: GrantFiled: November 24, 1997Date of Patent: November 12, 2002Inventors: Hou-Chun Ting, Hsueh-Ming Hang, Jang-Zern Tsai, Chien-Chen Liang
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Patent number: 5978542Abstract: 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: GrantFiled: June 30, 1997Date of Patent: November 2, 1999Assignee: Industrial Technology Research InstituteInventors: Hou-Chun Ting, Hsueh-Ming Hang, Jang-Zern Tsai, Chien-Chen Liang
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Patent number: 5647048Abstract: 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: GrantFiled: June 7, 1995Date of Patent: July 8, 1997Assignee: Industrial Technology Research InstituteInventors: Hou-Chun Ting, Hsueh-Ming Hang, Jang-Zern Tsai, Chien-Chen Liang
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Patent number: 5644446Abstract: 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: GrantFiled: November 22, 1995Date of Patent: July 1, 1997Assignee: Industrial Technology Research InstituteInventors: Jang-Zern Tsai, Jyh Yuan
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Patent number: 5499147Abstract: 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: GrantFiled: December 2, 1993Date of Patent: March 12, 1996Assignee: Industrial Technology Research InstituteInventors: Jang-Zern Tsai, Chin-Chuan Liang