Method and system for attenuating noise from a cabinet housing computer equipment

A apparatus for attenuating noise emanating from a cabinet housing noise-generating equipment, the apparatus comprising:

• a frame configured to be mountable on the cabinet, proximate the noise-generating equipment, the frame including a support member;
• a noise cancellation device mounted to the support member proximate the noise-generating equipment, the noise cancellation device comprising a sound input device for receiving a noise signal output from the noise-generating equipment, a processing device for determining characteristics of the noise signal and generating a cancellation signal which is identical to the noise signal but approximately 180 degrees out-of-phase with the noise signal, and a sound output device for outputting the cancellation signal proximate the noise-generating equipment, to attenuate the noise emanating from the cabinet;
• and
• a noise absorption member for absorbing the noise signal output from the noise-generating equipment, the noise absorption member being mounted on a first side of the support member, an outer surface of the noise absorption member being substantially non-parallel to a direction of an airflow pathway through the cabinet, and defining a flow path through the apparatus;
• wherein the noise cancellation device is incorporated into the noise absorption member to minimize obstructions in the flow path of the apparatus.

An apparatus for attenuating noise emanating from a cabinet housing noise-generating equipment, the apparatus comprising:

• a frame configured to be mountable on the cabinet, proximate the noise-generating equipment, the frame including a support member,
• a noise cancellation device mounted to the support member proximate the noise-generating equipment, the noise cancellation device comprising a sound input device for receiving a noise signal output from the noise-generating equipment, a processing device for determining characteristics of the noise signal and generating a cancellation signal which is identical to the noise signal but approximately 180 degrees out-of-phase with the noise signal, and a sound output device for outputting the cancellation signal proximate the noise-generating equipment, to attenuate the noise emanating from the cabinet;
• and
• a noise absorption member for absorbing the noise signal output from the noise-generating equipment, the noise absorption member being mounted on the support member, an outer surface of the noise absorption member being substantially non-parallel to a direction of an airflow pathway through the cabinet, and defining a flow path through the apparatus;
• wherein the noise cancellation device is incorporated into the noise absorption member to enable substantially all of the outer surface of the noise absorption member to absorb the noise signal.