Battery-less spatial optical communication terminals for location-based indoor information services

Author

Itoh, Hideo

Author_Institution

Adv. Ind. Sci. & Technol., Kotu-ku

fYear

2005

fDate

15-17 Sept. 2005

Firstpage

14

Lastpage

14

Abstract

Implementations of ultra low power consuming information terminals and the base stations have been developing to realize human supporting information services not only for ordinary people, but for information divided people. Spatial optical wavelength multiplexing technique at near infrared and eye-safe wavelength region was employed to serve multiple contents simultaneously. Reflectivity modulating technique using a liquid crystal light modulator and a corner-reflecting sheet was realized for uploading data with ultra low power consumption

Keywords

information services; liquid crystal devices; optical communication equipment; reflectivity; spatial light modulators; telecommunication terminals; wavelength division multiplexing; battery-less spatial optical communication terminal; corner-reflecting sheet; eye-safe wavelength region; human supporting information service; liquid crystal light modulator; location-based indoor information service; near infrared wavelength region; optical wavelength multiplexing technique; reflectivity modulating technique; ultra low power consuming information terminal; Base stations; Energy consumption; Humans; Liquid crystals; Optical fiber communication; Optical modulation; Paper technology; Reflectivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser and Fiber-Optical Networks Modeling, 2005. Proceedings of LFNM 2005. 7th International Conference on

Conference_Location

Yalta, Crimea

Print_ISBN

0-7803-9147-0

Type

conf

DOI

10.1109/LFNM.2005.1553176

Filename

1553176