Telemetered characteristic monitor system and method of using the same

  • US 7,098,803 B2
  • Filed: 07/23/2004
  • Issued: 08/29/2006
  • Est. Priority Date: 10/08/1998
  • Status: Expired due to Fees
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First Claim
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1. A method of synchronizing a transmitter connected to a sensor producing a signal indicative of a characteristic of a user with a remotely located characteristic monitor, the method comprising:

  • giving a unique ID code to the transmitter; and

    transmitting a message from the transmitter to the remotely located characteristic monitor in pseudo-randomly selected time windows based on the unique ID code of the transmitter,wherein the pseudo-randomly selected time windows are established by utilizing the unique ID code of the transmitter to set up a table of transmission time windows that defines an order in which the transmitter will transmit the message;

    wherein the message includes a message count number which indicates where in the sequence of time windows the transmitter is currently transmitting;

    setting up a corresponding table of time windows in the characteristic monitor utilizing the unique ID code of the transmitter;

    synchronizing the characteristic monitor with the transmitter using the received message count number to locate current position in the corresponding table of time windows; and

    determining when the characteristic monitor must be in a receive mode to acquire a next message.

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