Abstract: An earphone sensor system for measuring electrocardiogram signals provides convenient and comfortable noninvasive electrocardiogram signal measuring for a subject. The electrocardiogram signal measuring system includes an electrocardiogram signal analyzing apparatus and an earphone sensing apparatus. The electrocardiogram signal analyzing apparatus includes an amplifier module, a microcontroller, a display, a radio module and a housing having conductive contacts. The earphone sensing apparatus includes an earphone and an electrode. The electrode is disposed in the earphone, and can be electrically connected to the subject for collecting the weak electrocardiogram signal at the head of the subject. By contacting the body surface of the testee with the housing having conductive contacts and the electrode, a basic loop for collecting the electrocardiogram signals is formed. The earphone sensor system can be associated with commercial gadgets and used for musical treatments and bio-feedback.

Abstract: A miniature wireless apparatus for collecting physiological signals comprises an electrode pair, an amplifier module, a microcontroller, a wireless module, and a battery. The electrode pair collects a pair of physiological signals of a person under test. The amplifier module amplifies the pair of physiological signals. The microcontroller performs an analog-to-digital conversion and a data compression for an amplified physiological signal generated by the amplifier module. The wireless module modulates a digital physiological signal generated by the microcontroller and transmitting the modulated digital physiological signal to a receiver at the far end. The apparatus can be implemented by a structure of multilayered circuit boards. With the progress of semiconductor technology, all the components of the miniature wireless apparatus can be further integrated to one circuit board, or even one chip.

Abstract: The present invention relates to an analysis system and method for pulse diagnosis in Chinese medicine, which analyzes quantitatively the variances of pulse condition, and in particular analyzes the “pulse POSITION”, “pulse PACE”, “pulse FORM” and “pulse DYNAMICS” elements in pulse condition with remarkable increase in the accuracy of pulse diagnosis. The analysis system for pulse diagnosis of the present invention comprises a pulse signal collecting device to collect and generate blood pressure and electrocardiogram signals; and a signal process unit to receive and analyze the blood pressure signal series and electrocardiogram signal series.

Abstract: The present invention relates to a multi-antenna wireless sensor system that allows a subject to measure and transmit physiological signals, comprising a wireless sensor, a wireless base station, a network device, and a data processing unit. The wireless sensor senses and collects the physiological signals of the subject and contains a portable electronic device with a wireless data transmission interface.

Abstract: An earphone sensor system for measuring electrocardiogram signals provides convenient and comfortable noninvasive electrocardiogram signal measuring for a subject. The electrocardiogram signal measuring system includes an electrocardiogram signal analyzing apparatus and an earphone sensing apparatus. The electrocardiogram signal analyzing apparatus includes an amplifier module, a microcontroller, a display, a radio module and a housing having conductive contacts. The earphone sensing apparatus includes an earphone and an electrode. The electrode is disposed in the earphone, and can be electrically connected to the subject for collecting the weak electrocardiogram signal at the head of the subject. By contacting the body surface of the testee with the housing having conductive contacts and the electrode, a basic loop for collecting the electrocardiogram signals is formed. The earphone sensor system can be associated with commercial gadgets and used for musical treatments and bio-feedback.

Abstract: A miniature wireless apparatus for collecting physiological signals of animals includes a connector, an amplifier module, a microcontroller, a radio module and a power supply. The connector is attached to an animal to be tested by buckling a joint of the connector to a joint of a connector on the animal to be tested, so as to collect various physiological signals. The amplifier module amplifies each of the physiological signals by an appropriate gain to generate an amplified physiological signal. The microcontroller performs analog-to-digital conversion and data compression on the amplified physiological signal to generate a digital physiological signal. The radio module modulates the digital physiological signal, and then transmits the modulated digital physiological signal to a remote receiver in a wireless transmission manner. The radio module receives remote wireless signals as well. The power supply is configured to provide power to the above circuits.

Abstract: A user-friendly and statistic based heart rate variability analytical method includes the following steps of capturing an electrocardiogram signal of a person, performing analog-to-digital conversion of the electrocardiogram signal, selecting the peaks of the electrocardiogram signal, calculating the standard deviation of the heights, durations and inter-peak intervals of the peaks, removing the peaks whose heights, durations or inter-peak duration fall beyond a first predetermined standard deviation, sampling and interpolating the qualified peaks to form a consecutive peak signal, and performing spectrum analysis to the peak signal in frequency domain.

Abstract: A miniature wireless apparatus for collecting physiological signals comprises an electrode pair, an amplifier module, a microcontroller, a wireless module, and a battery. The electrode pair collects a pair of physiological signals of a person under test. The amplifier module amplifies the pair of physiological signals. The microcontroller performs an analog-to-digital conversion and a data compression for an amplified physiological signal generated by the amplifier module. The wireless module modulates a digital physiological signal generated by the microcontroller and transmitting the modulated digital physiological signal to a receiver at the far end. The apparatus can be implemented by a structure of multilayered circuit boards. With the progress of semiconductor technology, all the components of the miniature wireless apparatus can be further integrated to one circuit board, or even one chip.

Abstract: A Pulse Interval to Voltage Converter (PIVC) and conversion method thereof is revealed. The PIVC comprises a clock generator, a counter, a latch, a digital-to-analog converter (DAC), a delay unit, a frequency regulator and an underflow protection unit. New components, such as the delay unit, the frequency regulator and the underflow protection unit, are incorporated into the present invention, unlike the conventional art. The delay unit is intended for the programming of the default duration of delay, so as to delay the time for the counter to reset to zero, and in consequence regulate the baseline of the output voltage. The frequency regulator can regulate the clock generation frequency of the clock generator, so as to regulate the resolution of the output voltage. The underflow protection unit turns back external signals while the delay unit is operating, so as to minimize interference from noise.

Abstract: An electrocardiogram signal converter comprises an electrocardiogram signal detector, a first voltage amplifier, at least one low pass filter, at least one high pass filter, a second voltage amplifier, an optical isolator and an RS232 input/output port. The electrocardiogram signal detector captures an electrocardiogram signal, and the signal is amplified and filtered through the first and the second voltage amplifiers and the high and low pass filter/filters before being transmitted to the optical isolator. Afterward, the output signal of the optical isolator is digitized by the analog-to-digital conversion device and is transmitted to a computer through the RS232 interface for heart rate variability analysis.

Abstract: A Pulse Interval to Voltage Converter (PIVC) and conversion method thereof is revealed. The PIVC comprises a clock generator, a counter, a latch, a digital-to-analog converter (DAC), a delay unit, a frequency regulator and an underflow protection unit. New components, such as the delay unit, the frequency regulator and the underflow protection unit, are incorporated into the present invention, unlike the conventional art. The delay unit is intended for the programming of the default duration of delay, so as to delay the time for the counter to reset to zero, and in consequence regulate the baseline of the output voltage. The frequency regulator can regulate the clock generation frequency of the clock generator, so as to regulate the resolution of the output voltage. The underflow protection unit turns back external signals while the delay unit is operating, so as to minimize interference from noise.

Abstract: A user-friendly and statistic based heart rate variability analytical method includes the following steps of capturing an electrocardiogram signal of a person, performing analog-to-digital conversion of the electrocardiogram signal, selecting the peaks of the electrocardiogram signal, calculating the standard deviation of the heights, durations and inter-peak intervals of the peaks, removing the peaks whose heights, durations or inter-peak duration fall beyond a first predetermined standard deviation, sampling and interpolating the qualified peaks to form a consecutive peak signal, and performing spectrum analysis to the peak signal in frequency domain.