Hewlett-packard Development Company, L.p.

Chien Fa Huang

Chao-Wen Cheng

Peter Andrew Seiler

Wen Shih Chen

Ying-Chi Chou

Poying Chih

Feng Ming Lu

Mo-Hsuan Lin

Tsung-Yen Chen

Tsung Yen Chen

Chieh-Shen Huang

In some examples, an electronic device includes an audio output device, an airflow generator to generate an airflow, and a system controller to control an operational speed of the airflow generator. The electronic device further includes an audio controller to generate a noise cancellation audio output based on an indicator of the operational speed of the airflow generator provided from the system controller to the audio controller, and send the noise cancellation audio output to the audio output device to mitigate noise produced by the airflow generator.

Noise cancellation based on airflow generator operational speed

An example redundant power supply system comprises a power supply input to receive power from a power supply; a buck-boost converter coupled to the power supply input; and a controller coupled to the buck-boost converter. The controller is to receive a power supply identification signal from the power supply. The controller is also to enable or disable the buck-boost converter based on the power supply identification signal.

Controlling buck-boost converters based on power supply identification signals

Growing community of inventors

Taipei, Taiwan

Chien Fa Huang