Abstract: A user interface system includes a substrate having printed thereon user information and coded data, the coded data identifying various spatial regions of the printed substrate, and identifying a position of each coded data on the printed substrate; an optically imaging device configured to interact with the coded data on the substrate, generate interaction data indicating the physical region in which the device is interacting with the substrate; and a first computer system for receiving the interaction data, the first computer system configured to retrieve a digital version of the substrate, identify a digital region in the digital version corresponding to the physical region indicated by the interaction data, generate a query expression comprising of a search term identified from the digital region, and form a request from the query expression.

Abstract: An optical sensing device for controlling a computer system is disclosed. The device has a nib for receiving a nib force upon the nib being pressed against a substrate and a nib switch coupled to the nib. An optical sensor images optically coded data printed on the substrate. A processor effects a mode change between a cursor control mode and a hyperlinking mode upon the nib force actuating the nib switch, generates cursor control data when the optical sensing device is in the cursor control mode, and generates interaction data when the optical sensing device is in the hyperlinking mode. The interaction data indicates a coordinate position of the optical sensing device relative to the substrate. The cursor control data or the interaction data is then communicated to the computer system, where the cursor control data initiates a cursor control response and the interaction data initiates a hyperlinking response.

Abstract: A substrate having a coding pattern disposed on a surface thereof is disclosed. The coding pattern has target elements and data elements. The target elements define a target grid with cells. The data elements are contained in respective cells and include registration symbols identify the coding pattern as being one of a first or second coding pattern.

Abstract: A method is provided of enabling association of an object with a surface. In the method a server receives an image of the surface captured with an image sensor of a mobile device networked with the server, receives a request to associate a selected object with the captured image, receives specification of a location on the surface with which the selected object is to be associated, and associates the selected object with the specified location of the captured image of the surface.

Abstract: A system is provided having a sensing device for sensing data encoded by a plurality of marks at predetermined positions within a region. The data encoded by each mark is indicative of a functional attribute of that mark's predetermined position. The sensing device is configured to transmit, to a computer system, the sensed data such that the computer system causes execution of a function related to the functional attribute of the sensed data.

Abstract: A sulfonated dye salt of formula (II): wherein M is Ga(A1); A1 is an axial ligand selected from the group consisting of: —OH and halogen; and Z1+, Z2+, Z3+ and Z4+ are independently selected from the group consisting of: H and an ammonium cation. At least one of Z1+, Z2+, Z3+ and Z4+ is the ammonium cation. The ammonium cation is protonated 2,2-bis(hydroxymethyl)-2,2?,2?-nitrilotriethanol. Such salts exhibit reduced kogation in thermal bubble-forming inkjet printheads.