US 9,808,631 B2
Communication between a plurality of medical devices using time delays between communication pulses to distinguish between symbols
Keith R. Maile, New Brighton, MN (US); Michael J. Kane, Roseville, MN (US); Paul Huelskamp, St. Paul, MN (US); Lance E. Juffer, Lino Lakes, MN (US); and Jeffrey E. Stahmann, Ramsey, MN (US)
Assigned to Cardiac Pacemakers, Inc., St. Paul, MN (US)
Filed by Cardiac Pacemakers, Inc., St. Paul, MN (US)
Filed on Jul. 29, 2015, as Appl. No. 14/812,687.
Claims priority of provisional application 62/033,932, filed on Aug. 6, 2014.
Claims priority of provisional application 62/033,978, filed on Aug. 6, 2014.
Claims priority of provisional application 62/033,998, filed on Aug. 6, 2014.
Claims priority of provisional application 62/034,017, filed on Aug. 6, 2014.
Prior Publication US 2016/0038746 A1, Feb. 11, 2016
Int. Cl. A61N 1/08 (2006.01); A61N 1/372 (2006.01); A61N 1/39 (2006.01); H04L 25/49 (2006.01); H04B 13/00 (2006.01)
CPC A61N 1/37217 (2013.01) [A61N 1/3727 (2013.01); A61N 1/3962 (2013.01); H04B 13/005 (2013.01); H04L 25/4902 (2013.01); A61N 1/37288 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for communicating between a plurality of medical devices, the method comprising:
generating, with a first medical device, a first non-pacing communication pulse at a first time and a second non-pacing communication pulse at a second time;
receiving, with a second medical device, the first non-pacing communication pulse at a third time and the second non-pacing communication pulse at a fourth time;
determining, by the second medical device, one of three or more symbols based at least in part on the time difference between the third time and the fourth time, wherein:
a “0” symbol is determined if the difference between the third time and the fourth time is in a range of 350 to 450 microseconds;
a “1” symbol is determined if the difference between the third time and the fourth time is in a range of 550 to 700 microseconds; and
a synchronization symbol is determined if the difference between the third time and the fourth time is in a range of 800 to 1100 microseconds.