×

Data communications system, data sender, data receiver, data communications method, and computer program

  • US 20030126238A1
  • Filed: 12/10/2002
  • Published: 07/03/2003
  • Est. Priority Date: 12/12/2001
  • Status: Active Grant
First Claim
Patent Images

1. A data communications system for performing streaming data transmission, comprising:

  • a data sender; and

    a data receiver, wherein the data sender includes, a packet sending processor for sending data packets containing data to be sent;

    a network status monitoring unit for monitoring the network status;

    a data-sender-side controller for controlling, on the basis of the network status monitored by the network status monitoring unit, an error control mode for the transmitted packets; and

    a retransmission controller for extracting a data packet to be retransmitted in accordance with a retransmission request message packet received from the data receiver; and

    wherein the data receiver includes, a packet reception processor for receiving the data packets from the data sender;

    an error correction controller for detecting an error or packet loss in the data packets received from the data sender and performing error-compliant processing; and

    a retransmission request controller for determining, on the basis of the detection of the error or packet loss in the data packets received from the data sender, whether to send the retransmission request message packet serving as a data packet retransmission request to the data sender.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×