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Method and system for controlling power provided to an accessory

  • US 7,558,894 B1
  • Filed: 09/11/2006
  • Issued: 07/07/2009
  • Est. Priority Date: 09/11/2006
  • Status: Active Grant
First Claim
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1. A connector interface system for an accessory, the connector interface system comprising:

  • an interface adapted to be coupled with a portable media player and to exchange a plurality of commands with the portable media player, the plurality of commands comprising;

    a first command received by the accessory, the first command for requesting a current power state of the accessory;

    a second command sent by the accessory, the second command for communicating information about the current power state of the accessory;

    a third command received by the accessory, the third command for instructing the accessory to set a new power state of the accessory, the new power state being based at least in part on the current power state; and

    a fourth command sent by the accessory, the fourth command for communicating acceptance of the new power state setting by the accessory.

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