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Method and apparatus for providing a personal locator, access control and asset tracking service using an in-building telephone network

  • US 5,363,425 A
  • Filed: 06/29/1992
  • Issued: 11/08/1994
  • Est. Priority Date: 06/29/1992
  • Status: Expired due to Term
First Claim
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1. A system for providing a personal communication and locator service within a telephone network as a subscriber moves along the network from a first receiver device associated with his home telephone set to a second receiver device associated with a visited telephone set, comprising:

  • storing means, at database means, for storing a list of subscriber profiles indicative of the identity of the subscriber and network services available to that subscriber at his home telephone set;

    transmitter means adapted to be carried by a subscriber, and able to transmit a predetermined RF signal;

    input means at said transmitter means to allow said subscriber to modify said predetermined RF signal to initiate a predetermined network service;

    multiple receivers means adapted to be connected and distributed across said telephone network and able to receive said predetermined and modified RF signals indicative of a specific network service requested by said user;

    signal modulation means at said multiple receivers means for modulating said predetermined and modified RF signals into a modulated signal;

    means for sending, along a telephone line connected to said multiple receivers means, said modulated RF signal to a switch connected to said network; and

    means for registering said subscriber service profile against said visited telephone set associated with said second receiver device when said subscriber activates said input means, such that the subscriber'"'"'s network services and telephony features available from his home telephone set can be enabled at said visited telephone set.

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