Patent ID: 11921561
Assignee: PERCEIVE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. For a sleep control circuit for a memory unit of a neural network inference circuit configured to execute a neural network, a method comprising:
determining a value indicating a length of time since the memory unit was last accessed; and
when the determined value is at least a threshold value, sending a signal to the memory unit to operate in a sleep mode, wherein the neural network inference circuit comprises:
a plurality of independently-controlled memory units;
for each memory unit, a respective corresponding sleep control circuit that maintains a respective value indicating a length of time since its corresponding memory unit was last accessed; and
a memory unit selection decoder circuit that provides, to each of the sleep control circuits, a signal indicating whether the memory unit corresponding to the sleep control circuit is selected for access.