Patent ID: 11936681
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus to prevent early-detect-late-commit attacks, the apparatus comprising:
target signal generator circuitry configured to generate a target signal having a first center frequency and a bandwidth;
companion signal generator circuitry coupled to the target signal generator circuitry, the companion signal generator circuitry configured to generate a companion signal having a second center frequency that is less than (a) the first center frequency adjusted by a first threshold and greater than (b) the first center frequency adjusted by a second threshold, the first threshold being a first multiple of the bandwidth, the second threshold being a second multiple of the bandwidth, the first multiple different than the second multiple;
adder circuitry coupled to the target signal generator circuitry and the companion signal generator circuitry, the adder circuitry configured to combine the target signal and the companion signal to form a composite signal; and
transmitter circuitry coupled to the adder circuitry, the transmitter circuitry configured to transmit the composite signal to a target device.