Abstract: An imaging system may include a sample stage comprising a surface to support a sample container, the sample container including a sample having a plurality of sample locations; an optical stage to image the sample at the plurality of sample locations; one or more actuators physically coupled to at least one of the sample stage and the optical stage to move the sample stage relative to the optical stage to focus the optical stage onto a current sample location of the plurality of sample locations; a first light source to illuminate the current sample location; a second light source to project a pair of spots on a next sample location of the plurality of sample locations; and a controller to determine, based on an image of the pair of spots projected on the next sample location, a focus setting for the next sample location.

Abstract: Systems, methods, and computer program products for help functionality and graphical user interface applications are disclosed.

Abstract: A computer system executes a host application that generates a graphical user interface for display on a respective user's display screen. In addition to executing the host application, the computer system (or other computer) provides an environment for executing a so-called help agent (e.g., a plug-in module) associated with the host application. The help agent can initiate display of a help window along with a graphical user interface displayed by the host application. Depending on the embodiment, the help agent can provide one or more functions such as retrieval and display of help information links in the help window to different types of help information, application of commands to the graphical user interface application via input with respect to the help window, and viewing of application hint information in the help window.

Abstract: A roller extension slide including first and second track beams, a center beam of box section with wheels projecting through clearance openings of lateral webs engaging track surfaces of the track beams; guide flanges of the center beam engaging guide slots of the track beams for maintaining the track beams closely spaced; and the travel slot formed in each track beam. Center wheel axle extensions engage opposite ends of travel slots in the track beams for limiting the travel between retracted and extended positions of the track beams, with track beam wheel engagement spacing being at least 80% of the track length the first position and at least 40% in the second position, an extension distance being at least 80% percent of the track length, the first position being with the apparatus substantially contained within the track length. Also disclosed is a table incorporating a pair of the extension slides.

Abstract: A method and apparatus for allowing the collection of information regarding visits to the pages of a data network such as the Internet, and the number of separate images viewed is described. The described method overcomes various prior art limitations including providing for improved accuracy in reporting the number of times a banner image, such as an advertisement, is viewed; providing improved methods and apparatuses for efficiently identifying unique banner images viewed; providing an improved method and apparatus for configuring a network user's computer so that interference from the data collection process with the normal operation of the computer is minimized; providing an improved method and apparatus for efficiently calculating a checksum to allow unique identification of a banner image viewed by a network user; and providing an improved method and apparatus for determining whether the network user used the browser BACK button to view a page and, if so, to count the banner images viewed.