| Paper Abstract and Keywords |
| Presentation |
2026-03-27 09:40
Evaluation of Interference Noise in Wireless-Powered CMOS Image Sensors
Shunki Oyama, Koki Okada (Ritsumeikan Univ.), Ken Miyauchi (Brillnics Japan/ Ritsumeikan Univ), Hideki Owada, Chia-Chi Kuo, Isao Takayanagi (Brillnics Japan), Ami Tabaka, Fumiya Nishimura, Shunsuke Okura (Ritsumeikan Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
With the rapid proliferation of IoT devices, there is a growing interest in wireless power transfer (WPT) technology. However, CMOS image sensors still predominantly rely on wired power supplies or batteries. While WPT offers significant advantages, such as enhanced design flexibility and installation freedom by eliminating power cables, there are concerns regarding image quality degradation caused by power supply fluctuations and electromagnetic interference (EMI). As a first step toward realizing a completely wireless CMOS image sensor, this study focuses on magnetic resonant coupling and evaluates the noise generated in captured images. Experimental results demonstrate that horizontal streak noise occurs during wireless powering, characterized by a significant increase in row temporal noise. Furthermore, source analysis reveals that the primary cause of this noise is the increase in photoelectric conversion electrons within the photodiode (PD) due to electromagnetic interference. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CMOS image sensor / IoT / wireless power transfer / magnetic resonant coupling / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 14, IST2026-13, pp. 13-17, March 2026. |
| Paper # |
IST2026-13 |
| Date of Issue |
2026-03-20 (IST) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IST |
| Conference Date |
2026-03-27 - 2026-03-27 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IST |
| Conference Code |
2026-03-IST |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Evaluation of Interference Noise in Wireless-Powered CMOS Image Sensors |
| Sub Title (in English) |
|
| Keyword(1) |
CMOS image sensor |
| Keyword(2) |
IoT |
| Keyword(3) |
wireless power transfer |
| Keyword(4) |
magnetic resonant coupling |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Shunki Oyama |
| 1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name |
Koki Okada |
| 2nd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 3rd Author's Name |
Ken Miyauchi |
| 3rd Author's Affiliation |
Brillnics Japan Inc./ Ritsumeikan University (Brillnics Japan/ Ritsumeikan Univ) |
| 4th Author's Name |
Hideki Owada |
| 4th Author's Affiliation |
Brillnics Japan Inc. (Brillnics Japan) |
| 5th Author's Name |
Chia-Chi Kuo |
| 5th Author's Affiliation |
Brillnics Japan Inc. (Brillnics Japan) |
| 6th Author's Name |
Isao Takayanagi |
| 6th Author's Affiliation |
Brillnics Japan Inc. (Brillnics Japan) |
| 7th Author's Name |
Ami Tabaka |
| 7th Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 8th Author's Name |
Fumiya Nishimura |
| 8th Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 9th Author's Name |
Shunsuke Okura |
| 9th Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2026-03-27 09:40:00 |
| Presentation Time |
15 minutes |
| Registration for |
IST |
| Paper # |
IST2026-13 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.14 |
| Page |
pp.13-17 |
| #Pages |
5 |
| Date of Issue |
2026-03-20 (IST) |