US 11,057,164 B2
Memory conservation in delta-compressed message transmission and recovery
Sanjay John Cherian, Bangalura (IN)
Assigned to TD Ameritrade IP Company, Inc., Omaha, NE (US)
Filed by TD Ameritrade IP Company, Inc., Omaha, NE (US)
Filed on Sep. 13, 2019, as Appl. No. 16/571,022.
Prior Publication US 2021/0083810 A1, Mar. 18, 2021
Int. Cl. H04L 1/00 (2006.01); H04L 1/18 (2006.01); H03M 13/15 (2006.01); H04L 12/58 (2006.01)
CPC H04L 1/1858 (2013.01) [H03M 13/1515 (2013.01); H04L 1/0061 (2013.01); H04L 1/0072 (2013.01); H04L 51/14 (2013.01)] 20 Claims
OG exemplary drawing
 
17. A communication method comprising:
in response to receiving a new message, obtaining recovery bits of a previous message, wherein the recovery bits of the previous message are stored at a transmitter;
generating a candidate message by attempting recovery of the previous message from (i) the new message and (ii) the recovery bits of the previous message;
in response to an indicator indicating that the attempted recovery was successful, computing a delta between the new message and the candidate message and generate a delivery message based on the computed delta;
in response to the indicator indicating that the attempted recovery was unsuccessful, generating the delivery message based on the new message;
calculating new recovery bits from the new message;
replacing the recovery bits of the previous message with the new recovery bits; and
transmitting the delivery message to a destination over a communications channel.