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Condition responsive indicating system for interactively indicating status of a plurality of electrical appliances

  • US 5,680,445 A
  • Filed: 09/03/1996
  • Issued: 10/21/1997
  • Est. Priority Date: 08/15/1990
  • Status: Expired due to Fees
First Claim
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1. A condition responsive indicating system for interactively indicating status of a plurality of electrical appliances, comprising:

  • a controller for sensing an operational status parameter of each of the appliances and generating and transmitting status signals corresponding thereto and for determining an appliance availability status signal, said controller further comprising means for generating and transmitting a user prompt for interactively prompting a user to provide a user input; and

    a plurality of remote transceivers, each including;

    means for receiving the user prompt and providing an indication thereof to the user;

    means for receiving the user input;

    a transmitter for generating and transmitting at least one interrogation signal including an appliance status request signal and a call back request signal only in response to the user input, the at least one interrogation signal causing said controller to transmit the status signals;

    a receiver for receiving the status signals; and

    an indicator for producing an indication of the status signals;

    the controller transmits, in response to the call back request signal and depending upon the appliance availability status signal, a call back to the remote transceiver from which the call back request signal was transmitted.

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