Abstract: A heart rate detection method for calculating heart rate using heart sound from auscultation positions identified by a statistical approach utilizes a down-sampling and filtering process to acquire samples of heart sound from multiple auscultation positions of multiple testees and calculate heart rate with the samples, records time for calculating heart rate from each auscultation position of each testee and record the same from electrocardiogram, calculates a mean error and a standard deviation of the time to identify the auscultation positions allowing faster speed in heart rate detection, and applies a Bland-Altman difference plot and both a coefficient of determination and a Pearson's correlation coefficient to determine the degree of consistency and correlation of the heart rate measured from the multiple auscultation positions to identify the auscultation positions allowing generation of precise heart rate.
Type:
Grant
Filed:
September 10, 2015
Date of Patent:
June 26, 2018
Assignee:
IMEDIPLUS INC.
Inventors:
Kun-Hsi Tsai, Shih-I Yang, Shih-Hsuan Ku, Tzu-Chen Liang, Lei Wan, Chung Lun Chen, Wen Ling Liao, Yu Hsuan Chen
Abstract: A heart rate detection method for calculating heart rate using heart sound from auscultation positions identified by a statistical approach utilizes a down-sampling and filtering process to acquire samples of heart sound from multiple auscultation positions of multiple testees and calculate heart rate with the samples, records time for calculating heart rate from each auscultation position of each testee and record the same from electrocardiogram, calculates a mean error and a standard deviation of the time to identify the auscultation positions allowing faster speed in heart rate detection, and applies a Bland-Altman difference plot and both a coefficient of determination and a Pearson's correlation coefficient to determine the degree of consistency and correlation of the heart rate measured from the multiple auscultation positions to identify the auscultation positions allowing generation of precise heart rate.
Type:
Application
Filed:
September 10, 2015
Publication date:
March 16, 2017
Applicant:
IMEDIPLUS INC.
Inventors:
Kun-Hsi TSAI, Shih-I YANG, Shih-Hsuan KU, Tzu-Chen LIANG, LEI WAN, CHUNG LUN CHEN, WEN LING LIAO, YU HSUAN CHEN
Abstract: A signal processing method in cochlear implant is performed by a speech processor and comprises a noise reduction stage and a signal compression stage. The noise reduction stage can efficiently reduce noise in a electrical speech signal of a normal speech. The signal compression stage can perform good signal compression to enhance signals to stimulate cochlear nerves of a hearing loss patient. The patient who uses a cochlear implant performing the signal processing method of the present invention can understand normal speech.
Type:
Application
Filed:
August 27, 2015
Publication date:
March 2, 2017
Applicant:
IMEDIPLUS INC.
Inventors:
Kun Hsi TSAI, Yu TSAO, Ying Hui LAI, Shih Hsuan KU