Patents by Inventor Chuen-Heng Wang

Chuen-Heng Wang 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: 11282200
    Abstract: The present disclosure provides a method and a system for recognizing medical image, the present disclosure utilizes the image data with markers of different diseases for calculating and analyzing to build a pre-trained model, the present disclosure has significant improvements to improve the accuracy of image recognition under the general situation of insufficient effective data in the field of medical image recognition technology, the present disclosure can be applied to the field of medical image recognition technology, including X-ray, CT, MRI, ultrasonic, pathological slice photography or fundus photography.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: March 22, 2022
    Assignee: MUEN BIOMEDICAL AND OPTOELECTRONIC TECHNOLOGIES INC.
    Inventor: Chuen-Heng Wang
  • Publication number: 20210090258
    Abstract: The present disclosure provides a method and a system for recognizing medical image, the present disclosure utilizes the image data with markers of different diseases for calculating and analyzing to build a pre-trained model, the present disclosure has significant improvements to improve the accuracy of image recognition under the general situation of insufficient effective data in the field of medical image recognition technology, the present disclosure can be applied to the field of medical image recognition technology, including X-ray, CT, MRI, ultrasonic, pathological slice photography or fundus photography.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Inventor: Chuen-Heng WANG
  • Patent number: 8350819
    Abstract: The present invention discloses a method for determining touch points on a touch panel and a system thereof. The method includes the following steps: sampling, calculating a difference, comparing the difference, sampling a determinative area, and calculating a barycenter. The barycenter position from the said steps is a touch point position. The present invention can overcome the problem of the ghost point in traditional touch panels and also be applicable for touch panels of various types.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: January 8, 2013
    Assignee: Alcor Micro Corp.
    Inventors: Chi-Tung Chang, Chuen-Heng Wang
  • Publication number: 20120206399
    Abstract: A method and system for processing the signals of a touch panel are provided. Therein, the capacitive values of each sensor on the touch panel are successively taken during a period of time. Then, the average capacitive value of each sensor is calculated for computing estimated touch point coordinates. The distance between each two sets of such coordinates sensed respectively at two sensing time points is calculated. If a distance thus calculated is less than a predetermined distance, the two sets of estimated touch point coordinates corresponding to the distance are defined as valid touch point coordinates. If a series of estimated touch point coordinates are successively defined as valid touch point coordinates for a predetermined number of times, the touch point corresponding to each set of valid touch point coordinates in the series is defined as a valid touch point. Thus, the precision of touch point determination is enhanced.
    Type: Application
    Filed: March 24, 2011
    Publication date: August 16, 2012
    Applicant: Alcor Micro, Corp.
    Inventors: Chuen-Heng Wang, Chien-Hsien Wu
  • Publication number: 20110279386
    Abstract: The present invention discloses a method for determining touch points on a touch panel and a system thereof. The method includes the following steps: sampling, calculating a difference, comparing the difference, sampling a determinative area, and calculating a barycenter. The barycenter position from the said steps is a touch point position. The present invention can overcome the problem of the ghost point in traditional touch panels and also be applicable for touch panels of various types.
    Type: Application
    Filed: June 23, 2010
    Publication date: November 17, 2011
    Applicant: Alcor Micro Corp.
    Inventors: Chi-Tung Chang, Chuen-Heng Wang
  • Publication number: 20090135978
    Abstract: An apparatus and method for estimating and compensating sampling frequency offset are disclosed. Particularly, a linear mathematical scheme is employed to calculate the related phase difference for saving use of multipliers and storage circuit used for sampling frequency offset estimation and compensation in the conventional art. The preferred embodiment of the invention has a first step to receive signals by the offset estimating circuit. Next, the phase value for each signal is calculated, and the pilot signal therein is retrieved. Next, a phase difference is obtained by subtraction operation between the received symbols and the delayed pilot symbols. And a circuit for storing the phase differences is incorporated. Next, a phase difference between the adjacent symbols is obtained by accumulating the phases and processing the least-error-sum-of-squares operation. Therefore, an estimation value of the sampling frequency offset of a communication system is obtained, and further to compensate the offset.
    Type: Application
    Filed: March 11, 2008
    Publication date: May 28, 2009
    Inventors: Chi-Tung Chang, Tzu-Wen Sung, Chuen-Heng Wang, Yu-Ling Chen
  • Patent number: 7538595
    Abstract: The present invention provides a $ for canceling DC offset, comprising: a first circuit accumulating a first square value of a plurality of signal values in a time period; a second circuit calculation a second square value of an accumulation of said signal values in said time period, wherein said square value is divided by a quantity of said signal values in said time period to generate a DC offset value; and a third circuit, connected to said first circuit and second circuit, calculating a difference between said first square value and said DC offset value.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: May 26, 2009
    Assignee: Alcor Micro, Corp.
    Inventors: Chi-Tung Chang, Chuen-Heng Wang, Yu-Ling Chen
  • Publication number: 20080298223
    Abstract: A packet detecting circuit detects a packet inputting time via calculating a delay correlation function and an autocorrelation function. In order to prevent a DC offset from affecting the calculation of the delay correlation function and the autocorrelation function, when the packet detecting circuit calculates the delay correlation function and the autocorrelation function, the packet detecting circuit will calculate and remove the error of the delay correlation function and the autocorrelation function produced by a DC offset. Then the packet detecting circuit calculates a packet triggering value according to the delay correlation function and the autocorrelation function for detecting the packet inputting time more precisely.
    Type: Application
    Filed: August 1, 2007
    Publication date: December 4, 2008
    Applicant: ALCOR MICRO, CORP.
    Inventors: CHI-TUNG CHANG, CHUEN-HENG WANG, TZU-WEN SUNG, YU-LING CHEN
  • Publication number: 20080278212
    Abstract: The present invention provides a circuit for canceling DC offset, comprising: a first circuit accumulating a first square value of a plurality of signal values in a time period; a second circuit calculation a second square value of an accumulation of said signal values in said time period, wherein said square value is divided by a quantity of said signal values in said time period to generate a DC offset value; and a third circuit, connected to said first circuit and second circuit, calculating a difference between said first square value and said DC offset value.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 13, 2008
    Inventors: CHI-TUNG CHANG, CHUEN-HENG WANG, YU-LING CHEN