Abstract: Generating a focus stack, including receiving initial focus data that identifies a plurality of target depths, positioning a lens at a first position to capture a first image at a first target depth of the plurality of target depths, determining, in response to capturing the first image and prior to capturing additional images, a sharpness metric for the first image, capturing, in response to determining that the sharpness metric for the first image is an unacceptable value, a second image at a second position based on the sharpness metric, wherein the second position is not included in the plurality of target depths, determining that a sharpness metric for the second image is an acceptable value, and generating a focus stack using the second image.

Abstract: Generating a focus stack, including receiving initial focus data that identifies a plurality of target depths, positioning a lens at a first position to capture a first image at a first target depth of the plurality of target depths, determining, in response to capturing the first image and prior to capturing additional images, a sharpness metric for the first image, capturing, in response to determining that the sharpness metric for the first image is an unacceptable value, a second image at a second position based on the sharpness metric, wherein the second position is not included in the plurality of target depths, determining that a sharpness metric for the second image is an acceptable value, and generating a focus stack using the second image.

Abstract: A disk drive includes: a disk, a head, and control circuitry including a servo control system operable to actuate the head. The head is unloaded onto a ramp for a period of time based on a time constant. The head is loaded onto the disk after the period of time has elapsed and head-media spacing (HMS) is repeatedly measured. The head is unloaded when the HMS measurements become constant within a predetermined range.

Abstract: A user interface can have one or more spaces presented therein. A space is a grouping of one or more program windows in relation to windows of other application programs, such that the program(s) of only a single space is visible when the space is active. A view can be generated of all spaces and their contents.