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Traffic monitoring system and service differentiation in a dynamic channel assignment system for TCP/IP data transmitted via cable television channels

  • US 6,498,783 B1
  • Filed: 06/22/1999
  • Issued: 12/24/2002
  • Est. Priority Date: 06/22/1999
  • Status: Expired due to Fees
First Claim
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1. In a data communication system with cable television channels, a method for determining the data transmission rate in a channel comprising:

  • providing a bandwidth manager for the data communication system;

    connecting a personal computer to the system, said computer being capable of communicating with a number of channels in the system;

    sending a test message of fixed length from the bandwidth manager to the personal computer via a chosen channel with a timestamp; and

    computing the data transmission rate in the chosen channel by dividing the number of bits in the test message by the difference in time between when the test message is received by the personal computer and the timestamp placed on the test message by the bandwidth manager.

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