February 2015
Intermediate to advanced
200 pages
4h 48m
Japanese
Content preview from Bluetooth Low Energyをはじめよう
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003
規格
2010年6月、Bluetooth SIGが Bluetoothコ ア 規 格 の バ ージョン 4.0ととも に Bluetooth
Low Energy
を世に送り出した。この規格は数年をかけて策定されたもので、議論の多かっ
たセクションや決定の大部分は最終的に開発プロセスに参加した企業によって解決され、
またいくつかの追加的な懸念点は規格のその後の更新にゆだねられた。
その最初の主要な更新となったBluetooth 4.1は2013年12月 に リ リ ー ス さ れ 、こ れ が
BLE 製品を開発する際の現時点での参照規格だ。基本的な構成要素や手順、そして概
念は変更されていないが、このリリースでは利用者にスムーズな体験を可能とするために
いくつかの変 更と改 善も行われている。
すべての Bluetooth規 格と同 様 、4.1は4.0と後方互換であり、規格の異なるバージョ
ンを実装したデバイス間で正しく相互運用できることが保証されている。Bluetooth規格
では（廃止される前であれば）どのバージョンに対しても準拠した製品をリリースすることが
許されているが 、新 たにリリースされた 規 格 が 急 速 に 受 け 入 れられていること、そして バ ージョ
ン4.1
ではデバイス間に共通のプラクティスがいくつか標準化されていることから、入手で
きる最新の規格に準拠することが推奨される。
特に注記のない限り、この本ではBluetooth 4.1を参照規格として利用す
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.