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Powering a notebook across a USB interface

  • US 6,668,296 B1
  • Filed: 06/30/2000
  • Issued: 12/23/2003
  • Est. Priority Date: 06/30/2000
  • Status: Expired due to Term
First Claim
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1. A computer system, comprising:

  • a device comprising a docking station;

    a laptop computer coupled to said device by way of a communication bus;

    said laptop computer powered by said device across power lines of said communication bus;

    said laptop computer comprising;

    a bridge device, said bridge device adapted to communicate over said communication bus being a Universal Serial Bus (USB) interface; and

    a system battery coupled to said processor and bridge devices; and

    a laptop docking logic coupled to said system battery and power rails of said USB interface, said laptop docking logic adapted to couple power from said USB power rails to said system battery; and

    said docking station comprising a dock station docking logic adapted to determine whether said laptop computer is capable of receiving power across said USB interface, said dock station docking logic further adapted to provide power to said laptop on said power rails of said USB interface.

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