Patents by Inventor Chien-Ju Li

Chien-Ju Li 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).

  • Publication number: 20240219332
    Abstract: An electrical impedance imaging sensing system includes a signal processing device, a sensing element and a processor. The signal processing device is electrically coupled to the sensing element and configured for outputting an emission signal. Each of N electrodes of the sensing element is configured to receive a received signal after the emission signal passes through a to-be tested object. The processor is configured to determine whether one of the N electrodes fails according to a plurality of the received signal; in response to the failure of the electrode, compensate the received signal of the failed electrode; and generate an electrical impedance image pre-processing data according to the received signal.
    Type: Application
    Filed: December 12, 2023
    Publication date: July 4, 2024
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chang-Lin HU, Zong-Yan LIN, I-Cheng CHENG, Chien-Ju LI, Chii-Wann LIN
  • Patent number: 11806192
    Abstract: A guiding system and a guiding method for ultrasound scanning operation are provided. The guiding system includes a handheld guiding device, a display device, an ultrasound scanning device, a prompting device, and a control host. When the handheld guiding device generates a first physical motion, the control host detects the first physical motion and generates navigation prompting information accordingly. The prompting device is suitable for presenting the navigation prompting information to guide the ultrasound scanning device to move to generate a second physical motion. The control host captures an ultrasound image via the ultrasound scanning device and sends the ultrasound image to the display device at a guiding end for display.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: November 7, 2023
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Ju Li, Peng-Zhi Sun, Yi-Jung Wang, Brian Hsu
  • Patent number: 11395641
    Abstract: An ultrasonic imaging device includes an ultrasonic generating unit and an ultrasonic imaging processing unit. The ultrasonic generating unit repeatedly turns on N of M ultrasonic array elements of the ultrasonic probe multiple times as a group of array elements for linear scanning, and each scan is to emit an ultrasonic signal by each group of array elements and receive an echo signal of the ultrasonic signal. The ultrasonic imaging processing unit extracts a central echo signal from the echo signal in each scan to form a channel signal, and according to the arrival time of the echo signals, each central echo signal in the channel signal is delayed and summed to generate a modified channel signal. The modified channel signal is subjected to image synthesis process to obtain an ultrasonic image.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 26, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chang-Lin Hu, Chien-Ju Li, Guo-Zua Wu, Chih-Chi Chang
  • Publication number: 20220175347
    Abstract: A guiding system and a guiding method for ultrasound scanning operation are provided. The guiding system includes a handheld guiding device, a display device, an ultrasound scanning device, a prompting device, and a control host. When the handheld guiding device generates a first physical motion, the control host detects the first physical motion and generates navigation prompting information accordingly. The prompting device is suitable for presenting the navigation prompting information to guide the ultrasound scanning device to move to generate a second physical motion. The control host captures an ultrasound image via the ultrasound scanning device and sends the ultrasound image to the display device at a guiding end for display.
    Type: Application
    Filed: October 25, 2021
    Publication date: June 9, 2022
    Applicant: Industrial Technology Research Institute
    Inventors: Chien-Ju Li, Peng-Zhi Sun, Yi-Jung Wang, Brian Hsu
  • Publication number: 20200196990
    Abstract: An ultrasonic imaging device includes an ultrasonic generating unit and an ultrasonic imaging processing unit. The ultrasonic generating unit repeatedly turns on N of M ultrasonic array elements of the ultrasonic probe multiple times as a group of array elements for linear scanning, and each scan is to emit an ultrasonic signal by each group of array elements and receive an echo signal of the ultrasonic signal. The ultrasonic imaging processing unit extracts a central echo signal from the echo signal in each scan to form a channel signal, and according to the arrival time of the echo signals, each central echo signal in the channel signal is delayed and summed to generate a modified channel signal. The modified channel signal is subjected to image synthesis process to obtain an ultrasonic image.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chang-Lin HU, Chien-Ju LI, Guo-Zua WU, Chih-Chi CHANG
  • Patent number: 10048360
    Abstract: An ultrasound imaging system includes a beam receiving circuit and a back-end circuit. The beam receiving circuit receives a plurality of digitized echo signals. The back-end circuit is coupled to the beam receiving circuit for outputting a plurality of compressed delay timing parameters corresponding to a plurality of channels to the beam receiving circuit. The beam receiving circuit decompresses the compressed delay timing parameters into a plurality of delay timing parameters, and processes the digitized echo signals into an ultrasound beamforming value according to the delay timing parameters corresponding to the channels. The back-end circuit synthesizes an ultrasound image according to the ultrasound beamforming value outputted from the beam receiving circuit.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: August 14, 2018
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chi Chang, Yi-Jung Wang, Guo-Zua Wu, Oscal Tzyh-Chiang Chen, Chien-Ju Li, Ji-Da Chen
  • Patent number: 9449597
    Abstract: An ultrasound receiving method is provided. N return-wave signals corresponding to N channels are respectively stored in N set of shift register arrays. Each set includes a delay filter unit and M shift registers. A delay controller is utilized to assign a set of coefficients to the delay filter unit to perform an interpolation operation on data of the M shift registers to obtain an output value. The delay controller is utilized to decide delay time of each channel according to a delay table, and accordingly to control a time multiplexer to switch and output the N output values in order. A multiplier is utilized to multiply the output value received from the time multiplexer by a weighted value corresponding to the channel to obtain a corrected value. An accumulator is utilized to accumulate the N corrected values to obtain an image value.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: September 20, 2016
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: Chien-Ju Li
  • Publication number: 20160187472
    Abstract: An ultrasound imaging system includes a beam receiving circuit and a back-end circuit. The beam receiving circuit receives a plurality of digitized echo signals. The back-end circuit is coupled to the beam receiving circuit for outputting a plurality of compressed delay timing parameters corresponding to a plurality of channels to the beam receiving circuit. The beam receiving circuit decompresses the compressed delay timing parameters into a plurality of delay timing parameters, and processes the digitized echo signals into an ultrasound beamforming value according to the delay timing parameters corresponding to the channels. The back-end circuit synthesizes an ultrasound image according to the ultrasound beamforming value outputted from the beam receiving circuit.
    Type: Application
    Filed: September 22, 2015
    Publication date: June 30, 2016
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chi CHANG, Yi-Jung WANG, Guo-Zua WU, Oscal Tzyh-Chiang CHEN, Chien-Ju LI, Ji-Da CHEN
  • Patent number: 8966402
    Abstract: A system and method are provided to edit interactive three-dimensional multimedia. A user interface of the system is provided with an event level template that includes event series levels with multiple event developing points. Through the user interface, multiple interactive events related to a first character of the event developing point are edited. Through a three-dimensional engine, interactive relevances are built up between interactive events and multiple materials inside one or more database. When the interactive three-dimensional multimedia with multiple materials is output, the interactive events corresponding to the event developing points are performed according to a user command. An online editing and exchanging method integrated with the system and method is also provided to share pre-edited templates on an exchange server; each of the pre-edited templates is extracted from an interactive three-dimensional multimedia pre-edited by the system and method.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: February 24, 2015
    Assignee: National Taipei University of Education
    Inventors: Yu-Ling Lu, Chi-Jui Lien, Chien-Ju Li, Wei-Ming Chen
  • Publication number: 20130107670
    Abstract: An ultrasound receiving method is provided. N return-wave signals corresponding to N channels are respectively stored in N set of shift register arrays. Each set includes a delay filter unit and M shift registers. A delay controller is utilized to assign a set of coefficients to the delay filter unit to perform an interpolation operation on data of the M shift registers to obtain an output value. The delay controller is utilized to decide delay time of each channel according to a delay table, and accordingly to control a time multiplexer to switch and output the N output values in order. A multiplier is utilized to multiply the output value received from the time multiplexer by a weighted value corresponding to the channel to obtain a corrected value. An accumulator is utilized to accumulate the N corrected values to obtain an image value.
    Type: Application
    Filed: April 4, 2012
    Publication date: May 2, 2013
    Inventor: Chien-Ju LI
  • Publication number: 20130007669
    Abstract: A system and method are provided to edit interactive three-dimensional multimedia. A user interface of the system is provided with an event level template that includes event series levels with multiple event developing points. Through the user interface, multiple interactive events related to a first character of the event developing point are edited. Through a three-dimensional engine, interactive relevances are built up between interactive events and multiple materials inside one or more database. When the interactive three-dimensional multimedia with multiple materials is output, the interactive events corresponding to the event developing points are performed according to a user command. An online editing and exchanging method integrated with the system and method is also provided to share pre-edited templates on an exchange server; each of the pre-edited templates is extracted from an interactive three-dimensional multimedia pre-edited by the system and method.
    Type: Application
    Filed: August 30, 2011
    Publication date: January 3, 2013
    Inventors: Yu-Ling Lu, Chi-Jui Lien, Chien-Ju Li, Wei-Ming Chen
  • Patent number: 7620198
    Abstract: A watermark coding method and its recording medium utilize image interleaving and wavelet-based transformation to enhance the robustness of the image. The watermark series to be inserted is converted, encrypted, and modulated to increase the difficulty in decoding and restoring. Finally, the watermark is distributed and hidden in various frequency bands of the image in a frequency hopping way, generating a robust watermarked image. When used in a recording medium, side information produced during coding is recorded in the lead-in area of the recording medium to reduce the chances of illegal copying.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: November 17, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Ju Li, Guo-Zua Wu, Meng-Han Tsai, Kun-Ta Wu
  • Publication number: 20080140988
    Abstract: A method for reducing memory resource utilization is disclosed, applied to simplify address space of a table. Values stored in address fields of an original table are analyzed to determine whether logical relationship is detected between the values. If the logical relationship is detected, the values stored in the original table are classified to multiple base values and corresponding reduced values to generate a transformation table. Values with the same logical relationship for base values and the corresponding reduced values are stored in a new and equivalent address field of a reduction table.
    Type: Application
    Filed: September 7, 2007
    Publication date: June 12, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Ju Li, Oscal Tzyh Chiang Chen, Guo-Zua Wu