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Titan Technology Alliance
has provided the engineering and consulting
services to develop innovative DSP algorithms for HRM, SpO2, HRV and ECG.
We have deep knowledge in application development using Silabs’
Biometric Sensors: Si1143-44, Si117x and Si118x.
HRM (Heart Rate Monitor): We developed an innovative DSP solution for the
HRM using Si1143-44, Si117x and Si118x. The solution used green LED on
wrist and processed the PPG (PhotoPlethysmoGraph) signal. The algorithm
took into account of motion artifacts caused by arm motion during the
exercise. The HRM can be used for fitness watches, smart watches and other
wearable devices that require low-power heart rate monitoring.
SpO2 (Oxygen Saturation Monitor): We designed a
reflective SpO2 algorithm to monitor the SpO2 on fingertip at idle. The
solution uses both IR and Red LEDs that are connected to Si114x. It can be
integrated to a mobile phone and made as a stand-alone fingertip SpO2/HRM
device to monitor the blood oxygen level and the heart rate.
HRV (Heart Rate Variability):
We
developed a wristwatch HRV algorithm using the green-LED PPG at high
sampling rate. The solution extracted the RR interval at idle and
calculated the HRV parameters.
ECG
Signal Processing: We designed an innovative DSP algorithm to filter the ECG signal when the ECG sensor is connected between the right-hand fingertip and left-hand wrist.
The solution removed the
baseline wander, power line interference and other noise from the ECG
signal. It well reserved the QRS complex and P & T waveforms, and
calculated accurate heart rate and RR intervals that were used to
calculate the HRV parameters.
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