Abstract
This paper presents a high-speed and high-efficiency capsule endoscopy system. Both a transmitter and a receiver were optimized for its application through an analysis of the human body channel. ON-OFF keying modulation is utilized to achieve low power consumption of the in-body transmitter. A low drop output regulator is adopted to prevent performance degradation in the event of a voltage drop in the battery. The receiver adopts superheterodyne structure to obtain high sensitivity, considering the link budget from the previous analysis. The receiver and transmitter were fabricated using the CMOS 0.13-μm process. The output power of the transmitter is -1.6 dB·m and its efficiency is 27.7%. The minimum sensitivity of the receiver is -80 dB·m at a bit error ratio (BER) of 3 x 10 -6. An outer wall loop antenna is adopted for the capsule system to ensure a small size. The integrated system is evaluated using a liquid human phantom and a living pig, resulting in clean captured images.
| Original language | English |
|---|---|
| Pages (from-to) | 1005-1011 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Biomedical Engineering |
| Volume | 59 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 Apr 1 |
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All Science Journal Classification (ASJC) codes
- Biomedical Engineering
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A design of a high-speed and high-efficiency capsule endoscopy system. / Kim, Kihyun; Yun, Sumin; Lee, Sungho; Nam, Sangwook; Yoon, Young Joong; Cheon, Changyul.
In: IEEE Transactions on Biomedical Engineering, Vol. 59, No. 4, 01.04.2012, p. 1005-1011.Research output: Contribution to journal › Article
TY - JOUR
T1 - A design of a high-speed and high-efficiency capsule endoscopy system
AU - Kim, Kihyun
AU - Yun, Sumin
AU - Lee, Sungho
AU - Nam, Sangwook
AU - Yoon, Young Joong
AU - Cheon, Changyul
PY - 2012/4/1
Y1 - 2012/4/1
N2 - This paper presents a high-speed and high-efficiency capsule endoscopy system. Both a transmitter and a receiver were optimized for its application through an analysis of the human body channel. ON-OFF keying modulation is utilized to achieve low power consumption of the in-body transmitter. A low drop output regulator is adopted to prevent performance degradation in the event of a voltage drop in the battery. The receiver adopts superheterodyne structure to obtain high sensitivity, considering the link budget from the previous analysis. The receiver and transmitter were fabricated using the CMOS 0.13-μm process. The output power of the transmitter is -1.6 dB·m and its efficiency is 27.7%. The minimum sensitivity of the receiver is -80 dB·m at a bit error ratio (BER) of 3 x 10 -6. An outer wall loop antenna is adopted for the capsule system to ensure a small size. The integrated system is evaluated using a liquid human phantom and a living pig, resulting in clean captured images.
AB - This paper presents a high-speed and high-efficiency capsule endoscopy system. Both a transmitter and a receiver were optimized for its application through an analysis of the human body channel. ON-OFF keying modulation is utilized to achieve low power consumption of the in-body transmitter. A low drop output regulator is adopted to prevent performance degradation in the event of a voltage drop in the battery. The receiver adopts superheterodyne structure to obtain high sensitivity, considering the link budget from the previous analysis. The receiver and transmitter were fabricated using the CMOS 0.13-μm process. The output power of the transmitter is -1.6 dB·m and its efficiency is 27.7%. The minimum sensitivity of the receiver is -80 dB·m at a bit error ratio (BER) of 3 x 10 -6. An outer wall loop antenna is adopted for the capsule system to ensure a small size. The integrated system is evaluated using a liquid human phantom and a living pig, resulting in clean captured images.
UR - http://www.scopus.com/inward/record.url?scp=84858964130&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858964130&partnerID=8YFLogxK
U2 - 10.1109/TBME.2011.2182050
DO - 10.1109/TBME.2011.2182050
M3 - Article
C2 - 22207636
AN - SCOPUS:84858964130
VL - 59
SP - 1005
EP - 1011
JO - IEEE Transactions on Biomedical Engineering
JF - IEEE Transactions on Biomedical Engineering
SN - 0018-9294
IS - 4
ER -