Abstract: A scanning head for use in a register mark detection apparatus for detecting register marks on a web during relative movement between the web and the scanning head. The scanning head comprises an optical sensor and a first optical mask spaced from the optical sensor and having an aperture therethrough to define the viewing footprint of the optical sensor. In some embodiments, the scanning head also includes a second optical mask in series with the first optical mask. The scanning head is versatile and capable of operating with high sensitivity and accuracy even with low contrast media, including with embossed or relief marks, or for fold-line registration or with translucent media.

Abstract: Methods, systems, and computer program products for managing a resource include using a first object to obtain data associated with the resource that is being managed. The first object may be embedded in a cell of a spreadsheet running on a spreadsheet application. Formula in the spreadsheet are executed, where at least some of the formulas reference at least some of the data obtained by the first object. The operation of the resource may then be altered based on the results of the executed formula.

Abstract: Methods, systems and computer program products are provided for processing cells in a spreadsheet. A first formula contained in a first cell and a second formula contained in a second cell to provide a consolidated formula, wherein the second formula references the output of the first cell are automatically consolidated. The consolidated formula is stored in a single cell. Further methods, systems and computer program products are provided for processing cells in a spreadsheet and wherein a first cell, a second cell that is referenced as a precedent cell by a formula contained in the first cell, and a formula or data contained in the second cell are displayed while hiding the formula contained in the first cell and its value.

Abstract: Methods, systems and computer program products are provided for visually indicating relationships among cells in a spreadsheet. Each of a first graphical linking element extending between cells in a first branch of a dependency tree of a root cell and a second graphical linking element extending between cells in a second branch of the dependency tree of the root cell is independently displayed and hidden.

Abstract: A scanning head for use in a register mark detection apparatus for detecting register marks on a web during relative movement between the web and the scanning head. The scanning head comprises an optical sensor and a first optical mask spaced from the optical sensor and having an aperture therethrough to define the viewing footprint of the optical sensor. In some embodiments, the scanning head also includes a second optical mask in series with the first optical mask. The scanning head is versatile and capable of operating with high sensitivity and accuracy even with low contrast media, including with embossed or relief marks, or for fold-line registration or with translucent media.