Granted Patent B1

US 12,579,330 · App. 18/147,194 · Granted Mar 17, 2026

Inventors: Lingjun Wu (San Jose, CA); Yueming Li (San Mateo, CA); Han Wang (San Jose, CA)

Assignee: Meta Platforms, Inc.

G06F21/86H03M13/15H03M13/611

Abstract

Claims (67)

1 . At least one non-transitory computer readable storage medium comprising a set of instructions, which when executed by a computing device, causes the computing device to:

identify a codeword associated with a fluid cooling system and a network system;

generate a status update with the network system;

embed the codeword as a repeating cyclic codeword in a message containing the status update;

transmit the message from the network system to the fluid cooling system over a data link;

receive the message at the fluid cooling system;

determine, with the fluid cooling system, whether interference is inserted into the message based on the repeating cyclic codeword in the message;

determine that a first instance of the repeating cyclic codeword is incorrect;

increment a counter;

determine if the counter has reached a threshold; and

responsive to determining that the threshold is satisfied, flag one or more of a mis-alarm or malicious attack, or responsive to determining that the threshold is not satisfied, reattempt to capture further instances of the repeating cyclic codeword from the message.

2 . The at least one non-transitory computer readable storage medium of claim 1 , wherein to embed the codeword as the repeating cyclic codeword in the message, the instructions when executed by the computing device, cause the computing device to:

repeatedly apply a circular shift to the codeword to generate shifted codewords; and

embed the shifted codewords into the message.

3 . The at least one non-transitory computer readable storage medium of claim 1 , wherein the codeword is a maximum distance separable (MDS) code.

4 . The at least one non-transitory computer readable storage medium of claim 1 , wherein the instructions, when executed, cause the computing device to:

apply a moving window to the message to detect if the codeword is accurately provided in the message, wherein the window has a size that is equal to a size of the codeword.

5 . The at least one non-transitory computer readable storage medium of claim 1 , wherein the set of instructions, which when executed by the computing device:

determine, with the fluid cooling system, whether an instance of the repeating cyclic codeword in the message is valid; and

if the instance of the repeating cyclic codeword Is not valid, apply an error correction code process to the instance.

6 . The at least one non-transitory computer readable storage medium of claim 1 , wherein the set of instructions, which when executed by the computing device:

when a second instance of the repeating cyclic codeword is correct, check the status update, wherein the status update indicates whether a leak of fluid was detected in the fluid cooling system.

7 . A system comprising:

one or more processors; and

memory coupled to the one or more processors, the memory comprising computer-executable instructions executable by the one or more processors, the one or more processors configured to execute the computer-executable instructions to:

identify a codeword associated with a fluid cooling system and a network system;

generate a status update with the network system;

embed the codeword as a repeating cyclic codeword in a message containing the status update;

transmit the message from the network system to the fluid cooling system over a data link;

receive the message at the fluid cooling system;

determine, with the fluid cooling system, whether interference is inserted into the message based on the repeating cyclic codeword in the message;

determine that a first instance of the repeating cyclic codeword is incorrect;

increment a counter;

determine if the counter has reached a threshold; and

responsive to determining that the threshold is satisfied, flag one or more of a mis-alarm or malicious attack, or responsive to determining that the threshold is not satisfied, reattempt to capture further instances of the repeating cyclic codeword from the message.

8 . The system of claim 7 , wherein to embed the codeword as the repeating cyclic codeword in the message, the one or more processors are further operable to:

repeatedly apply a circular shift to the codeword to generate shifted codewords; and embed the shifted codewords into the message.

9 . The system of claim 7 , wherein the codeword is a maximum distance separable (MDS) code.

10 . The system of claim 7 , wherein the one or more processors are further operable to:

apply a moving window to the message to detect if the codeword is accurately provided in the message, wherein the window has a size that is equal to a size of the codeword.

11 . The system of claim 7 , wherein the one or more processors are further operable to:

determine, with the fluid cooling system, whether an instance of the repeating cyclic codeword in the message is valid; and

if the instance of the repeating cyclic codeword Is not valid, apply an error correction code process to the instance.

12 . The system of claim 7 , wherein the one or more processors are further operable to:

when a second instance of the repeating cyclic codeword is correct, check the status update, wherein the status update indicates whether a leak of fluid was detected in the fluid cooling system.

13 . A method comprising:

identifying, by one or more computer processors coupled to memory, a codeword associated with a fluid cooling system and a network system;

generating a status update with the network system;

embedding the codeword as a repeating cyclic codeword in a message containing the status update;

transmitting the message from the network system to the fluid cooling system over a data link;

receiving the message at the fluid cooling system;

determining, with the fluid cooling system, whether interference is inserted into the message based on the repeating cyclic codeword in the message;

determining that a first instance of the repeating cyclic codeword is incorrect;

incrementing a counter;

determining if the counter has reached a threshold; and

responsive to determining that the threshold is satisfied, flagging one or more of a mis-alarm or malicious attack, or responsive to determining that the threshold is not satisfied, reattempting to capture further instances of the repeating cyclic codeword from the message.

14 . The method of claim 13 , wherein the embedding comprises:

repeatedly applying a circular shift to the codeword to generate shifted codewords; and

embedding the shifted codewords into the message.

15 . The method of claim 13 , wherein the codeword is a maximum distance separable (MDS) code.

16 . The method of claim 13 , further comprising:

applying a moving window to the message to detect if the codeword is accurately provided in the message, wherein the window has a size that is equal to a size of the codeword.

17 . The method of claim 13 , further comprising:

determining, with the fluid cooling system, whether an instance of the repeating cyclic codeword in the message is valid; and

if the instance of the repeating cyclic codeword is not valid, applying an error correction code process to the instance.

18 . The method of claim 13 , further comprising:

when a second instance of the repeating cyclic codeword is correct, checking the status update, wherein the status update indicates whether a leak of fluid was detected in the fluid cooling system.

Assignments (1)

References Cited (11)