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System for dynamically determining effective speed of a communication link

  • US 6,215,774 B1
  • Filed: 10/24/1997
  • Issued: 04/10/2001
  • Est. Priority Date: 03/25/1997
  • Status: Expired due to Term
First Claim
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1. A method for enhancing data communications from a first device to a second device coupled by a communications link, said method comprising the steps of:

  • receiving at a first device a request to transmit a data object to a second device;

    transmitting a test packet from the first device to the second device in response to receiving said request;

    receiving a responsive test packet at the first device;

    determining an effective link speed for communications between the first device and the second device using a period of time between said transmission and said receipt of test packets;

    transcoding the requested data object to optimize its transmission to the second device based upon the effective link speed; and

    transmitting the transcoded data object to the second device.

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