Clock and Data Recovery Based Intra-Body Communication Receiver and Delay-Locked Loop Based Bluetooth Receiver
Date Issued
2009
Date
2009
Author(s)
Wang, Chang-Lun
Abstract
With advanced technology, a chronic disease should be monitored and observed for a long term. The biosensor achieves the purpose that can measure the biomedical signal. After measuring the biomedical signal, measured signals from different points will be transmitted to local center. Generally, the method of transmission is wireless transmission. Here, we will use human body as the transmission media. The type of communication is called intra body communication (IBC). The method of directly transmitting digital signal from transmitter can release much complexity of transmitter design. We also need an IBC receiver which can receive digital signal with signal loss and 60 Hz noise. Therefore, we will present a monolithic CDR (clock and data recovery) based receiver for intra body communication.he Bluetooth receiver is widely used in the Bluetooth communication system. Various demodulators can demodulate the FSK signal. Comparing with other types of demodulators, the DLL (delay-locked loop) based demodulator has low power consumption and simple circuit design of cancelling frequency offset. Therefore, we proposed a 2.4GHz DLL based receiver with frequency offset calibration which can apply to Bluetooth communication system.
Subjects
Intra Body Communication
CDR
Bluetooth Receiver
DLL
SDGs
Type
thesis
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