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'https://openalex.org/W1031946321'], 'abstract_inverted_index': {'RFIDの技術には,人や物に付けて利用する非接触ICカードや無線ICタグと呼ばれる媒体と,それと電気的に無線通信を行い情報のやり取りを行うリーダユニットがある.また,周波数帯に関しては,RFIDを運用するアプリケーションによってLF(Low': [0], 'Frequency)帯,HF(High': [1], 'Frequency)帯,UHF(Ultra': [2], 'High': [3], 'Frequency)帯が用いられている.ここでは,Suica®,PASMO®などで利用されているHF帯13.56MHzと,今後普及が期待されるUHF帯950MHzについて,特にリーダ側の技術と課題について解説する.': [4]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2331874935', 'counts_by_year': [], 'updated_date': '2024-09-23T18:03:30.692369', 'created_date': '2016-06-24'}