Patent ID: 11943621
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An apparatus, comprising:
a non-transitory memory storing application instructions; and
a processor coupled to the non-transitory memory and configured to execute the application instructions to cause the processor to:
determine a first value for a localization tone;
insert the first value of the localization tone into a data packet;
generate a modified localization tone such that, after whitening and encrypting, the modified localization tone returns to the first value;
insert the modified localization tone into the data packet at an application layer of a communication protocol stack, the modified localization tone preceding data of a payload of the data packet and having a last bit immediately preceding a first bit of the data of the payload, wherein to insert the modified localization tone in the data packet, the processor is configured to replace the first value of the localization tone in the data packet with the modified localization tone;
whiten the data packet after inserting the modified localization tone into the data packet;
encrypt the data packet after inserting the modified localization tone into the data packet; and
transmit the data packet after the whitening and the encrypting the data packet.