Patent ID: 11870444
Assignee: PUFSECURITY CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The entropy source circuit of claim 10, wherein the entropy source circuit further comprises:
a flag signal generator, configured to generate a flag signal according to a system clock, a start signal and the determination signal, to indicate whether the entropy data is valid or not, wherein the start signal indicates the first time point;
wherein under a condition of the flag signal being a first logic value, the start signal being the first logic value and the determination signal being a second logic value, the flag signal is pulled to the second logic value at a time point of a next rising edge of the system clock; and under a condition of the flag signal being the second logic value and the determination signal being the second logic value, the flag signal is pulled to the first logic value at a time point of the next rising edge of the system clock.