公开(公告)号：US20230337390A1

公开(公告)日：2023-10-19

申请号：US17720055

申请日：2022-04-13

Applicant: Cisco Technology, Inc.

Inventor： Phong Hoang Ho ,  Niels-Peder M. Jensen ,  Stephen Aubrey Scearce ,  Robert Vincent Grimes ,  Lauren Ashleigh Buck

IPC: H05K7/20 ,  G06F1/20 ,  G01H1/00 ,  G05D23/01

CPC classification number: H05K7/20172 ,  G06F1/203 ,  G01H1/003 ,  G05D23/015

Abstract: An air mover may be provided. The air mover may comprise an air mover motor shaft, a bearing, a bearing housing, a circuit board, an accelerometer device, a temperature sensing device, and a controller. The air mover motor shaft may be associated with a motor. The bearing housing may support the bearing that supports rotation of the air mover motor shaft. The circuit board may be attached to the bearing housing. The accelerometer device may be disposed on the circuit board. The temperature sensing device may be disposed on the circuit board wherein the temperature sensing device may be located on the circuit board in order to obtain a temperature of the bearing housing. The controller may be disposed on the circuit board and may be operative to control the motor, collect vibration data from the accelerometer device, and collect temperature data from the temperature sensing device.

公开(公告)号：US10467892B2

公开(公告)日：2019-11-05

申请号：US15354456

申请日：2016-11-17

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Niels-Peder Mosegard Jensen ,  Phong Hoang Ho ,  Robert Vincent Grimes

IPC: G08C19/22 ,  H04L25/49 ,  G06F1/20

Abstract: According to one aspect, a method includes obtaining a first signal from a host at an air mover system, the air mover system including an air mover and a tachometer, the tachometer having an associated tachometer signal. The method also includes determining whether the first signal is a request for information associated with the air mover, and providing the information from the air mover system to the host on the associated tachometer signal when it is determined that the first signal is the request for information associated with the air mover.

公开(公告)号：US20240264920A1

公开(公告)日：2024-08-08

申请号：US18165643

申请日：2023-02-07

Applicant: Cisco Technology, Inc.

Inventor： Harikrishnan Pillai ,  Niels-Peder Mosegard Jensen ,  Jeffrey C. Loo ,  Phong Hoang Ho

IPC: G06F11/30 ,  G06F21/86

CPC classification number: G06F11/3058 ,  G06F21/86 ,  G06F2221/2151

Abstract: In one embodiment, a method includes receiving airflow data from an airflow sensor installed inside of a hardware device and determining an airflow value from the airflow data. The method also includes determining that the airflow value exceeds a predetermined threshold. The method further includes determining a potential tampering event associated with the hardware device.

公开(公告)号：US12022640B1

公开(公告)日：2024-06-25

申请号：US17840268

申请日：2022-06-14

Applicant: Cisco Technology, Inc.

Inventor： Phong Hoang Ho ,  Stephen Aubrey Scearce

IPC: H05K7/20 ,  H05K9/00

CPC classification number: H05K9/0022 ,  H05K7/2049 ,  H05K7/2039 ,  H05K7/20454

Abstract: A multi-column graphite-over-foam (GOF) assembly includes a plurality of foam columns wherein each foam column of the plurality of foam columns are individually wrapped in a graphite sheet. A graphite layer surrounds the plurality of foam columns and an electrically conductive outer layer surrounding the graphite layer. The graphite layer is configured to thermally couple the electrically conductive outer layer to the plurality of foam columns, and the electrically conductive outer layer is configured to absorb electromagnetic interference (EMI).