A millimeter-scale wireless imaging system with continuous motion detection and energy harvesting

Author

Gyouho Kim ; Yoonmyung Lee ; Zhiyoong Foo ; Pannuto, Pat ; Ye-sheng Kuo ; Kempke, Ben ; Ghaed, Mohammad Hassan ; Suyoung Bang ; Inhee Lee ; Yejoong Kim ; Seokhyeon Jeong ; Dutta, Pranab ; Sylvester, Dennis ; Blaauw, D.

Author_Institution

Univ. of Michigan, Ann Arbor, MI, USA

fYear

2014

fDate

10-13 June 2014

Firstpage

1

Lastpage

2

Abstract

We present a 2×4×4mm³ imaging system complete with optics, wireless communication, battery, power management, solar harvesting, processor and memory. The system features a 160×160 resolution CMOS image sensor with 304nW continuous in-pixel motion detection mode. System components are fabricated in five different IC layers and die-stacked for minimal form factor. Photovoltaic (PV) cells face the opposite direction of the imager for optimal illumination and generate 456nW at 10klux to enable energy autonomous system operation.

Keywords

CMOS image sensors; energy harvesting; image motion analysis; millimetre wave imaging; millimetre wave integrated circuits; object detection; solar cells; CMOS image sensor; IC layers; PV cells; battery; continuous in-pixel motion detection mode; continuous motion detection; energy autonomous system operation; energy harvesting; memory; millimeter-scale wireless imaging system; minimal form factor; photovoltaic cells; power 304 nW; power 456 nW; power management; processor; solar harvesting; system components; wireless communication; Battery charge measurement; Image resolution; Image sensors; Lenses; Motion detection; Radio frequency; Synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits Digest of Technical Papers, 2014 Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4799-3327-3

Type

conf

DOI

10.1109/VLSIC.2014.6858425

Filename

6858425