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PoweredUSB :''This article is about the proprietary variant USB standard. Self-powered conventional USB devices may also colloquially be referred to as "powered USB"; cf. e.g. Self-powered USB hubs.'' :''For information on the power provided by standard USB, see USB power.'' PoweredUSB, also known as Retail USB, USB PlusPower, and USB +Power, is an addition to the Universal Serial Bus standard that allows for higher-power devices to obtain power through their USB host instead of requiring an independent power supply or external AC adapter. It is mostly used in point-of-sale equipment, such as receipt printers and barcode readers. ==History== PoweredUSB, as a proprietary variant of USB, was developed and proposed by IBM, Berg (now FCI), NCR and Microsoft between 1998 and 1999, with the last revision (0.8g) issued in 2004. The specification is not endorsed by the USB Implementers Forum (USB-IF).〔(【引用サイトリンク】title=What is PoweredUSB? )〕〔(【引用サイトリンク】title=PoweredUSB in Retail )〕 IBM, who owns patents to PoweredUSB, charges a licensing fee for its use.〔 070727 poweredusb.org〕 PoweredUSB was licensed by Hewlett-Packard, Cyberdata, Fujitsu, Wincor and others.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「PoweredUSB」の詳細全文を読む
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