×

Electronically enabling devices remotely

  • US 7,298,240 B2
  • Filed: 03/08/2005
  • Issued: 11/20/2007
  • Est. Priority Date: 09/24/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A system comprising(I) an electronic key that transmits a wireless coded signal;

  • and(II) at least one tool that comprises(A) a first switch that enables the user of said tool to turn the tool on and off;

    (B) a second switch in series with said first switch;

    (C) a timer that opens said second switch after a predetermined amount of time; and

    (D) a receiver thatreceives said wireless coded signal,compares the wireless coded signal to a coded signal stored in said tool and,if the wireless coded signal matches the coded signal being stored, the receiver closes said second switch;

    wherein the tool includes at least a storage for storing a unique identifier and the tool is configured for performing a method including at least(i) when the tool is initially powered, a determination is made whether the predetermined amount of time has expired;

    (ii) if the predetermined amount of time has expired, the tool is disabled;

    (iii) if the predetermined amount of time has not expired, a determination is made whether the coded wireless signal is present;

    (iv) if the wireless coded signal is detected to be present, a determination is made whether the wireless coded signal contains a unique identification code by at least checking whether the wireless coded signal matches a signal stored in a storage in the tool;

    (v) if a match is found, a determination is made whether a disable signal is present;

    (vi) if the disable signal is present, the tool disables itself;

    (vii) if no match is found, a determination is made whether the predetermined amount of time has expired;

    (viii) if a disable signal is not present, a determination is made whether an enable signal is present;

    (ix) if an enable signal is present, the timer is reset, causing the tool to be activated;

    (x) if neither a disable signal nor an enable signal is present, a determination is made to determine whether the predetermined amount of time has expired;

    (xi) if the predetermined amount of time has expired, a determination is made whether an in-use flag is active, wherein an active in-use flag indicates that the tool is currently performing a function that should not be stopped; and

    (xii) if the in-use flag is active, deactivation of the tool is delayed until the in-use flag is no longer active.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×