Other

National Chung Cheng University

Ming-Chun Liang

Shuenn-Yuh Lee

Jia-Hua Hong

Cheng-Han Hsieh

A wireless monitoring system for receiving, processing, wirelessly communicating and displaying bio-signal information is provided, inclusive of an analog front-end detection circuit with CHS (Chopper Stabilization) and sigma-delta modulation techniques, a digital signal processor (DSP) with disease identification capability, a digital controller with functions of encoding/decoding (CODEC), modulation/demodulation (MODEM) and data loss prevention in communication, and a wireless radio frequency (RF) transceiver with super-regenerative technique. The system can detect the real-time bio-signal and transmit the bio-signal data to the server by wireless communication. If the wireless communication is disconnected, the system would immediately store the data until the communication is reconnected. Therefore, the stored data will not be lost and can be transmitted with the real-time data as the communication is re-established. Moreover, the invention provides a bio-signal analysis end device and a bio-signal detection end device.

Wireless monitoring system for detecting bio-signal analysis end device and bio-signal detection end device

The present invention discloses an FFT-based ADC calibration system able to solve the problems of capacitor mismatch and finite Op-Amp open loop gain, which result in that the radix of the gain of each stage is not exactly equal to 2. The present invention uses an FFT processor to calculate the real radix of each stage and uses a digital method to generate new digital outputs. As the present invention can compensate the finite gain of Op-Amp, the specification of Op-Amp is not so critical in designing ADC. Therefore, the low-gain Op-Amp can be used to reduce the power consumption of ADC. Further, the FFT-based calibration technology can considerably promote the performance of ADC.

Growing community of inventors

Tainan, Taiwan

Ming-Chun Liang