Abstract: Computer systems and methods incorporate user annotations (metadata) regarding various pages or sites, including annotations by a querying user and by members of a trust network defined for the querying user into search and browsing of a corpus such as the World Wide Web. A trust network is defined for each user, and annotations by any member of a first user's trust network are made visible to the first user during search and/or browsing of the corpus. Users can also limit searches to content annotated by members of their trust networks or by members of a community selected by the user.

Abstract: A system and method for enabling the interchange of enterprise data through an open platform is disclosed. This open platform can be based on a standardized interface that enables parties to easily connect to and use the network. Services operating as senders, recipients, and in-transit parties can therefore leverage a framework that overlays a public network.

Abstract: A system and method for enabling the interchange of enterprise data through an open platform is disclosed. This open platform can be based on a standardized interface that enables parties to easily connect to and use the network. Services operating as senders, recipients, and in-transit parties can therefore leverage a framework that overlays a public network.

Abstract: A system and method for enabling the interchange of enterprise data through an open platform is disclosed. This open platform can be based on a standardized interface that enables parties to easily connect to and use the network. Services operating as senders, recipients, and in-transit parties can therefore leverage a framework that overlays a public network.

Abstract: A network switch includes a plurality of cell processing units coupled together via a switch bus. In a preferred embodiment, the switch bus supports the peripheral component interconnect (PCI) bus protocol. Each cell processing unit includes a segmentation and reassembly unit (SAR), a RISC processor, a port processor, and a bus control unit. The SAR generates cells from frames of data stored in memory and transfers those cells to a destination mailbox in response to commands from from the RISC processor. The SAR assembles a cell within an internal register by combining cell header information with payload data read from memory. Once a cell has been assembled, it is sent to the bus controller for transmission across the switch bus to an address given by a mailbox number. Cells are transferred across the switch bus using a PCI burst write to the mailbox. A reassembly function gathers 48-byte cells into one or more larger output buffers. Cell reassembly is triggered by another RISC processor command.

Abstract: If a small amount of alcohol (about 0.05 to 6 wt %) is added to water-based inks for thermal ink-jet printing, the resultant print has a rapid dry time and improved smear resistance. In addition, a high quality print is obtained, even on plain paper.

Abstract: A dye used in ink compositions for ink-jet printing comprises an aromatic dye molecule having attached to the aromatic nucleus thereof from 2 to 10 alkylamino groups having the formula selected from the group consisting of:(a) --(CH.sub.2).sub.n --NH.sub.2, where n=2 to 4,(b) --NH--(CH.sub.2).sub.n --NH.sub.2, where n=2 to 5, and(c) --NH--(C.sub.2 H.sub.4 NH).sub.x C.sub.2 H.sub.4 NH.sub.2, where x=0 to about 100. These dyes have good water solubility at near neutral pH and interact well with paper.

Abstract: The cleanliness in foams used as ink reservoirs and ink delivery systems in ink-jet printing is determined by at least one of two methods. In the first method, the amount of non-volatile residues is measured. An amount of NVRs of less than about 0.2 wt/wt % is sufficient to provide adequate ink fluid properties. In the second method, the surface tension is measured for ink vehicle prior to and following exposure to the foam. For inks formulated for specially-coated paper printing, so long as the surface tension following exposure to the foam is at least about 40 dyne/cm, then adequate ink fluid properties are assured. For inks formulated for plain paper printing, so long as the drop in surface tension is less than about 7 dyne/cm as compared to ink vehicle not so exposed, then adequate ink fluid properties are assured.

Abstract: An ink composition for printing on plain paper and other media using a thermal ink-jet printer is provided. The ink composition comprises at least one member selected from the group consisting of ethylene glycol and diethylene glycol, present in an amount ranging from about 5 to 10 wt %; dye, ranging from about 1 to 4 wt %; and the balance water. A biocide ranging from about 0.01 to 0.3 wt % and/or a buffering agent ranging in concentration from about 0.05 to 0.5 wt % may also be included.The ink compositions of the invention permit printing on a large variety of plain papers, including bonds, photocopy paper and laser jet paper. These compositions are an improvement over other ink compositions and permit both high quality and letter quality printing to be achieved.

Abstract: An ink composition is provided for an ink-jet printer, preferably a thermal ink-jet printer. The composition comprises about 5 to 40 wt % glycol, about 60 to 90 wt % water, about 0.001 to 10 wt % polymer blend and about 1 to 7 wt % dye. The polymer blend includes both uncharged and charged monomeric units.The glycol and polymer blend act to form a soft plug that forms in the orifice of the ink-jet pen. The soft plug prevents further evaporaion of water, but unlike a hard plug, is readily blown out upon firing. The charged units in the polymer blend contribute to water fastness and light fastness of the dye on paper. Further, by employing appropriate functional groups in the polymer blend, chemical degradation of the ink dye can be retarded on acid or alkaline papers.

Abstract: A process for increasing the solubility of carbon black in desired solvents is provided. The process comprises (a) forming a suspension of the carbon black in a non-reactive medium, such as an aromatic hydrocarbon, (b) adding a silylating agent, such as an organosilane, (c) removing the reaction product of the silating agent and the carbon black, and (d) forming a dispersion of the reaction product in a solvent for use as an ink-jet printing fluid.The increased dispersibility of the carbon black of the invention results in a more non-settling suspension of the carbon black "molecules" than otherwise obtained.