High speed receiver for capsule endoscope.
In this study, a high-speed receiver for a capsule endoscope was proposed and implemented. The proposed receiver could receive 20 Mbps data that was sufficient to receive images with a higher resolution than conventional receivers. The receiver used a 1.2 GHz band to receive radio frequency (RF) signal, and demodulated the signal to an intermediate frequency (IF) stage (150 MHz). The demodulated signal was amplified, filtered, and under-sampled by a high-speed analog-to-digital converter (ADC). In order to decode the under-sampled data in real time, a simple frequency detection algorithm was selected and was implemented by using a FPGA. The implemented system could receive 20 Mbps data.
Woo
S H
SH
School of Electrical Engineering and Computer Science, Kyungpook National University, Daegu, Korea.
Yoon
K W
KW
Moon
Y K
YK
Lee
J H
JH
Park
H J
HJ
Kim
T W
TW
Choi
H C
HC
Won
C H
CH
Cho
J H
JH
D000703:Analog-Digital Conversion; D053705:Capsule Endoscopes; D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation*