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Apparatus and method for coupling data to a position determination device

  • US 6,307,505 B1
  • Filed: 02/24/1999
  • Issued: 10/23/2001
  • Est. Priority Date: 07/22/1998
  • Status: Expired due to Term
First Claim
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1. A data transmission device comprising:

  • a.) a controller adapted to control the operation of said data transmission device;

    b.) a data storage device coupled to said controller and adapted to store data;

    c.) a connection mechanism coupled to said controller and adapted to couple to an external data device for receiving serial data;

    d.) an encoder for encoding serial data into encoded data, said encoded data having a format adapted to be received by a position determination device, said encoder including a signal interference algorithm for preventing data loss from signal interference;

    e.) a radio transmitter coupled to said controller for transmitting said data from said encoded data to a position determination device; and

    f.) a housing, said controller, said data storage device, said encoder, and said radio transmitter disposed in said housing.

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