Patents by Inventor Wei-Chih Su

Wei-Chih Su 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: 11835618
    Abstract: A multiple-target vital sign detector includes a self-injection-locked oscillator (SILO), a chirp up/down converter, a frequency demodulator and a multiple-target vital sign processor. The chirp up/down converter performs conversion from an oscillation signal generated by the SILO to a frequency-modulated continuous wave (FMCW) signal to detect an area and from a received FMCW signal reflected from the area to an injection signal, while the SILO is injected with the injection signal to enter a self-injection-locked state. The locations and vital signs of multiple subjects are extracted from the oscillation signal using the frequency demodulator and the multiple-target vital sign processor. The objective of using the SILO is to improve the sensitivity of the FMCW detection process so as to more effectively distinguish the vital signs of multiple subjects at different locations.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: December 5, 2023
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Tzyy-Sheng Horng, Fu-Kang Wang, Wei-Chih Su, Mu-Cyun Tang, Rezki El Arif
  • Publication number: 20230300302
    Abstract: A projection apparatus, an illumination apparatus thereof, and a light source driving method thereof are provided. A control module converts a bit control signal into first light source timing signals, converts the first light source timing signals into second light source timing signals according to a lookup table, generates a driving current corresponding to each light source according to the lookup table, outputs second light source driving signals corresponding to the light sources according to the second light source timing signals. The lookup table includes a driving current ratio corresponding to the light sources. A driving module drives the light sources according to the second light source driving signals and the driving current for the light sources to have overlapping light-emitting timings.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Applicant: Coretronic Corporation
    Inventors: Hsin-Chang Huang, Chien-Yi Yang, Pei-Jen Liao, Yun-Shih Chen, Wei-Chih Su
  • Publication number: 20230228864
    Abstract: A SIL monopulse radar includes a self-injection-locking oscillator (SILO), a transmit antenna, two receive antennas, a hybrid coupler, a first demodulator, a second demodulator and a processor. The transmit antenna transmits the oscillation signal of the SILO to object. The two receive antennas receive a reflected signal from the object as a first echo signal and a second echo signal. The hybrid coupler outputs a difference signal and a sum signal. The difference signal is injected into the SILO. The first demodulator frequency-demodulates the oscillation signal to produce a first demodulated signal. The second demodulator phase-demodulates the sum signal by using the oscillation signal as a reference signal to produce a second demodulated signal. The processor processes the first and second demodulated signals to produce a monopulse ratio signal. The SIL monopulse radar can identify the posture and motion of a human body by analyzing the monopulse ratio signal.
    Type: Application
    Filed: October 24, 2022
    Publication date: July 20, 2023
    Inventors: Tzyy-Sheng Horng, Wei-Chih Su, Xuan-Xin Wu, Mu-Cyun Tang
  • Patent number: 11662453
    Abstract: A digital self-injection-locked (SIL) radar includes a digital SIL oscillator, a wireless signal transceiver and a digital frequency demodulator. The digital SIL oscillator generates a digital output signal. The wireless signal transceiver is electrically connected to the digital SIL oscillator to convert the digital output signal into a wireless signal for transmission to a target, receives a reflected signal from the target, and converts the reflected signal into a digital injection signal for injection into the digital SIL oscillator. Accordingly, the digital SIL oscillator operates in an SIL state and generates a digital oscillation signal. The digital frequency demodulator is electrically connected to the digital SIL oscillator to receive and demodulate the digital oscillation signal into a digital demodulation signal.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: May 30, 2023
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Shiang-Hwua Yu, Tzyy-Sheng Horng, Wei-Chih Su
  • Patent number: 11360189
    Abstract: A phase-tracking self-injection-locked (SIL) radar includes an SIL oscillator, a phase-tracking SIL loop and a frequency-locked loop. The SIL oscillator generates an electrical oscillation signal and receives an electrical injection signal related to the electrical oscillation signal for self-injection locking. The phase-tracking SIL loop receives the electrical oscillation signal and outputs the electrical injection signal to the SIL oscillator with a constant phase difference between the electrical oscillation signal and the electrical injection signal. The frequency-locked loop receives the electrical oscillation signal and produces an electrical control signal to control the phase-tracking SIL loop or the SIL oscillator for eliminating the frequency shift of the SIL oscillator caused by the phase-tracking SIL loop.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: June 14, 2022
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Tzyy-Sheng Horng, Shiang-Hwua Yu, Kang-Chun Peng, Wei-Chih Su
  • Publication number: 20220128651
    Abstract: A phase-tracking self-injection-locked (SIL) radar includes an SIL oscillator, a phase-tracking SIL loop and a frequency-locked loop. The SIL oscillator generates an electrical oscillation signal and receives an electrical injection signal related to the electrical oscillation signal for self-injection locking. The phase-tracking SIL loop receives the electrical oscillation signal and outputs the electrical injection signal to the SIL oscillator with a constant phase difference between the electrical oscillation signal and the electrical injection signal. The frequency-locked loop receives the electrical oscillation signal and produces an electrical control signal to control the phase-tracking SIL loop or the SIL oscillator for eliminating the frequency shift of the SIL oscillator caused by the phase-tracking SIL loop.
    Type: Application
    Filed: November 30, 2020
    Publication date: April 28, 2022
    Inventors: Tzyy-Sheng Horng, Shiang-Hwua Yu, Kang-Chun Peng, Wei-Chih Su
  • Publication number: 20210341595
    Abstract: A digital self-injection-locked (SIL) radar includes a digital SIL oscillator, a wireless signal transceiver and a digital frequency demodulator. The digital SIL oscillator generates a digital output signal. The wireless signal transceiver is electrically connected to the digital SIL oscillator to convert the digital output signal into a wireless signal for transmission to a target, receives a reflected signal from the target, and converts the reflected signal into a digital injection signal for injection into the digital SIL oscillator. Accordingly, the digital SIL oscillator operates in an SIL state and generates a digital oscillation signal. The digital frequency demodulator is electrically connected to the digital SIL oscillator to receive and demodulate the digital oscillation signal into a digital demodulation signal.
    Type: Application
    Filed: November 9, 2020
    Publication date: November 4, 2021
    Inventors: Shiang-Hwua Yu, Tzyy-Sheng Horng, Wei-Chih Su
  • Patent number: 11070777
    Abstract: A projection apparatus and its operation method are provided. The projection apparatus includes a light-emitting device, a driving circuit coupled to the light-emitting device, and a control circuit receiving at least one video frame and analyzing color content of the at least one video frame. According to at least one control signal, the driving circuit drives the light-emitting device to generate a projected beam. The control circuit selects a highlight mode or a normal mode as a selected mode according to the color content and correspondingly sets at least one control signal to the driving circuit according to the selected mode. A brightness of the projected beam of the light-emitting device in the highlight mode is greater than that in the normal mode.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: July 20, 2021
    Assignee: Coretronic Corporation
    Inventors: Wei-Chih Su, Sheng-Yu Chiu, Po-Yen Wu, Jung-Chi Chen, Chih-Lin Wang
  • Publication number: 20210109208
    Abstract: A multiple-target vital sign detector includes a self-injection-locked oscillator (SILO), a chirp up/down converter, a frequency demodulator and a multiple-target vital sign processor. The chirp up/down converter performs conversion from an oscillation signal generated by the SILO to a frequency-modulated continuous wave (FMCW) signal to detect an area and from a received FMCW signal reflected from the area to an injection signal, while the SILO is injected with the injection signal to enter a self-injection-locked state. The locations and vital signs of multiple subjects are extracted from the oscillation signal using the frequency demodulator and the multiple-target vital sign processor. The objective of using the SILO is to improve the sensitivity of the FMCW detection process so as to more effectively distinguish the vital signs of multiple subjects at different locations.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Inventors: Tzyy-Sheng Horng, Fu-Kang Wang, Wei-Chih Su, Mu-Cyun Tang, Rezki El Arif
  • Publication number: 20200169708
    Abstract: A projection apparatus and its operation method are provided. The projection apparatus includes a light-emitting device, a driving circuit coupled to the light-emitting device, and a control circuit receiving at least one video frame and analyzing color content of the at least one video frame. According to at least one control signal, the driving circuit drives the light-emitting device to generate a projected beam. The control circuit selects a highlight mode or a normal mode as a selected mode according to the color content and correspondingly sets at least one control signal to the driving circuit according to the selected mode. A brightness of the projected beam of the light-emitting device in the highlight mode is greater than that in the normal mode.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 28, 2020
    Applicant: Coretronic Corporation
    Inventors: Wei-Chih Su, Sheng-Yu Chiu, Po-Yen Wu, Jung-Chi Chen, Chih-Lin Wang
  • Patent number: 8871196
    Abstract: The present invention provides a method for enhancing PPAR? expression, comprising administering a subject in need thereof an effective amount of Lactobacillus gasseri PM-A0005, which was deposited under Budapest Treaty in the China Center for Type Culture Collection (CCTCC), China with Deposition No. M 207039.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: October 28, 2014
    Assignee: ProMD Biotech Co., Ltd.
    Inventors: Wei-Chih Su, Hsiang Ling Chen, Chun-Hsien Huang, Hsiao-Li Wu, Pei-Yu Tsai
  • Publication number: 20140286926
    Abstract: The present invention provides a method for reducing an allergic response and treating or preventing an allergic disease, comprising administering a subject in need thereof a therapeutically effective amount of the active ingredient for the treatment or the prevention of allergic diseases, wherein the active ingredient is glyceraldehyde-3-phosphate Dehydrogenase (G3PDH) or the functional variant or fragment thereof. The G3PDH can be isolated from Lactobacillus gasseri PM-A0005 (deposited under Budapest Treaty in the China Center for Type Culture Collection (CCTCC) with Deposit No: M 207039), as well as extract, fraction, and sub-fraction thereof.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: ProMD Biotech, Co., Ltd.
    Inventors: Wei-Chih Su, Hsiang-Ling Chen, Chun-Hsien Huang, Hsiao-Li Wu, Kuang-Chih Lee, Pei-Yu Tsai, Chun-Fu Tseng
  • Publication number: 20130344043
    Abstract: The present invention provides a method for enhancing PPAR? expression, comprising administering a subject in need thereof an effective amount of Lactobacillus gasseri PM-A0005, which was deposited under Budapest Treaty in the China Center for Type Culture Collection (CCTCC), China with Deposition No. M 207039.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 26, 2013
    Inventors: WEI-CHIH SU, HSIANG LING CHEN, CHUN-HSIEN HUANG, HSIAO-LI WU, PEI-YU TSAI
  • Patent number: 8470579
    Abstract: The present invention relates to novel strains of lactic acid bacteria, Lactobacillus plantarum subsp. plantarum PM-A0087 deposited as NRRL accession number B-50523, Bifidobacterium longum PM-A0101 deposited as NRRL accession number B-50525, and Bifidobacterium bifidum PM-A0218 deposited as NRRL accession number B-50524.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: June 25, 2013
    Assignee: PROMD Biotech. Co., Ltd.
    Inventors: Wei-Chih Su, Kuang-Chih Lee, Hsiang-Ling Chen, Hsiao-Li Wu
  • Publication number: 20120294833
    Abstract: The present invention relates to novel strains of lactic acid bacteria, Lactobacillus plantarum subsp. plantarum PM-A0087 deposited as NRRL accession number B-50523, Bifidobacterium longum PM-A0101 deposited as NRRL accession number B-50525, and Bifidobacterium bifidum PM-A0218 deposited as NRRL accession number B-50524.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Applicant: PROMD BIOTECH. CO., LTD.
    Inventors: WEI-CHIH SU, KUANG-CHIH LEE, HSIANG-LING CHEN, HSIAO-LI WU
  • Patent number: 8174304
    Abstract: A key module includes a key, a light emitting component, and a drive circuit. The key is operable between on and off states. The light emitting component is disposed adjacent to the key, and is capable of providing indicating light for the key. The drive circuit is electrically connected to the key and the light emitting component. The drive circuit is triggered upon switching of the key from the off state to the on state to provide a drive signal for driving the light emitting component to provide the indicating light. The drive signal has an intensity that gradually decreases over time once the key switches from the on state to the off state such that the indicating light provided by the light emitting component has a luminance that gradually decreases over time.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: May 8, 2012
    Assignee: Coretronic Corporation
    Inventors: Lien-Fu Cheng, Wei-Chih Su, Jyh-Yu Chuang
  • Patent number: 8021868
    Abstract: The invention described relates to novel strains of lactic acid bacteria and their use in anti-allergy. The composition may be in the form of foodstuffs or in the form of pharmaceutical compositions.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: September 20, 2011
    Assignee: Promd Biotech Co., Ltd.
    Inventors: Wei-Chih Su, Pei-Shan Hsieh, Yi-Chun Tsai, Chyi-Jang Wu, Yi-Chun Chen, Chung-Wei Kuo, Chiung-Ying Yang
  • Patent number: 7846449
    Abstract: The present invention provides a modified Dermatophagoides pteronyssinus allergen Der p 5 protein which has ability to inhibit IgE binding when exposed against to the antigen. A method for treating allergy comprising administrating a therapeutically effective dose of the modified D. pteronyssinus allergen Der p 5 protein to a subject suffering from allergy Der p 5 is also provided.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: December 7, 2010
    Assignee: Genmont Biotech Inc.
    Inventors: Ching-Hsiang Hsu, Wei-Chih Su
  • Patent number: 7655782
    Abstract: The present invention provides a modified Dermatophagoides pteronyssinus allergen Der p 5 protein which has ability to inhibit IgE binding when exposed against to the antigen. A method for treating allergy comprising administrating a therapeutically effective dose of the modified D. pteronyssinus allergen Der p 5 protein to a subject suffering from allergy Der p 5 is also provided.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: February 2, 2010
    Assignee: Genmont Biotech Inc.
    Inventors: Ching-Hsiang Hsu, Wei-Chih Su
  • Publication number: 20090176302
    Abstract: The present invention provides a modified Dermatophagoides pteronyssinus allergen Der p 5 protein which has ability to inhibit IgE binding when exposed against to the antigen. A method for treating allergy comprising administrating a therapeutically effective dose of the modified D. pteronyssinus allergen Der p 5 protein to a subject suffering from allergy Der p 5 is also provided.
    Type: Application
    Filed: July 17, 2007
    Publication date: July 9, 2009
    Applicant: GENMONT BIOTECH INC.
    Inventors: CHING-HSIANG HSU, WEI-CHIH SU