Td Ameritrade IP Compnay, Inc.

Sanjay John Cherian

Instructions stored on a computer-readable medium include, in response to receiving a new message for transmission, generating a candidate message by attempting recovery of a previous message from the new message and recovery bits of the previous message. The instructions include, in response to an indicator indicating that the attempted recovery was successful, computing a delta between the new message and the candidate message and generating a delivery message based on the computed delta. The instructions include, in response to the indicator indicating that the attempted recovery was unsuccessful, generating the delivery message based on the new message exclusive of the computed delta. The instructions include calculating new recovery bits from the new message. The instructions include storing the new recovery bits as the recovery bits of the previous message. The instructions include transmitting the delivery message to a destination over a communications channel.

Memory conservation in delta-compressed message transmission and recovery

A communication system includes a processor and a memory that stores recovery bits of a previous message and instructions. The instructions cause the processor to, in response to receiving a new message, obtain the recovery bits of the previous message and selectively generate a candidate message by attempting recovery of the previous message from the new message and the recovery bits of the previous message. The instructions include, in response to an indicator indicating that the recovery was successful, computing a delta between the new message and the candidate message and generating a delivery message based on (i) the computed delta or, in response to the indicator indicating that the recovery was unsuccessful, (ii) the new message. The instructions include calculating new recovery bits from the new message, replacing the stored recovery bits of the previous message with the new recovery bits, and transmitting the delivery message to a destination.

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Bangalura, India

Sanjay John Cherian