Abstract: A method of operating a computer mouse includes receiving electromagnetic (EM) radiation emitted from a source external to the computer mouse, the received EM radiation induces noise within one or more bands of noise frequencies and an image sensor circuit of the computer mouse generates erroneous movement detection signals in response to an operating frequency of the image sensor circuit being within the one or more bands of noise frequencies. The method further includes determining the operating frequency of the image sensor circuit, comparing the operating frequency to a target frequency, wherein the target frequency is outside of the one or more bands of noise frequencies, and tuning the operating frequency of the image sensor circuit towards the target frequency.

Abstract: A method of operating a computer mouse includes receiving electromagnetic (EM) radiation emitted from a source external to the computer mouse, the received EM radiation induces noise within one or more bands of noise frequencies and an image sensor circuit of the computer mouse generates erroneous movement detection signals in response to an operating frequency of the image sensor circuit being within the one or more bands of noise frequencies. The method further includes determining the operating frequency of the image sensor circuit, comparing the operating frequency to a target frequency, wherein the target frequency is outside of the one or more bands of noise frequencies, and tuning the operating frequency of the image sensor circuit towards the target frequency.

Abstract: Embodiments of the present invention are directed to methods and apparatus for managing current consumption of a peripheral device to meet power specification of the host system having a preset average current supply limit, a preset peak current supply limit, or both. In specific embodiments, the host system has a current supply limit available for supplying current to the peripheral device. The peripheral device operates in a low current consumption mode and a peak current consumption mode which is intermittent over time. The peripheral device draws a low current in the low current consumption mode which is lower than the current supply limit and drawing a peak current in the peak current consumption mode which is higher than the current supply limit. The apparatus comprises a reservoir configured to store excess energy from the host system during the low current consumption mode where the low current drawn by the peripheral device is lower than the current supply limit available from the host system.