×

Magnetic field communication method and apparatus capable of recognizing multiple nodes

  • US 8,406,165 B2
  • Filed: 05/28/2010
  • Issued: 03/26/2013
  • Est. Priority Date: 03/31/2010
  • Status: Active Grant
First Claim
Patent Images

1. A magnetic field communication method performed by a coordinator of a magnetic field area network, the method comprising:

  • (a) sending a request packet requesting at least one of;

    association with the network, disassociation from the network, network association state checking, data transmission, or group address setting;

    (b) receiving response packets from nodes which have received the request packet;

    (c) selecting one or more response packets from among the response packets received at (b);

    (d) sending a response acknowledgement packet to nodes corresponding to the response packets selected at (c);

    (e) receiving response packets resent by nodes which have not received the response acknowledgement packet sent at (d);

    (f) selecting one or more response packets from among the response packets received at (e); and

    (g) sending a response acknowledgement packet to nodes corresponding to the response packets selected at (f).

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×