Abstract: A Wireless LAN Context Control Protocol (WLCCP) is used to establish and manage a wireless network topology and securely manages the “operational context” for mobile stations in a campus network. The WLCCP registration protocol can automatically create and delete links in the network, securely distribute operational context, and reliably establish Layer 2 forwarding paths on wireless links. A single infrastructure node is established as the central control point for each subnet, and enables APs and MNs to select the parent node that provides the “least-cost path” to a backbone LAN. Context messages provide a general-purpose transport for context and management information. WLCCP “Trace” messages facilitate network diagnostic tools. Ethernet or UDP/IP encapsulation can be used for WLCCP messages. Ethernet encapsulation is employed for intra-subnet (e.g. AP-to-AP or AP-to-SCM) WLCCP messages. IP encapsulation is used for inter-subnet WLCCP messages and may also be used for intra-subnet WLCCP messages.

Abstract: The subject application is directed to a system and method for generating gift cards. Image data representing gift card formats is first generated on an associated display. A gift card is then selected and text data is received representing text associated with the selected gift card. Gift amount data is then received representing a fungible value associated with the selected gift card. Charge data associated with a cost associated with the gift amount is then received. Encoded data, corresponding to the gift amount, is then generated. Thereafter, a tangible gift card is generated in accordance with the selected gift card format and the received text. In accordance with one embodiment of the subject application, the encoded data is stored on a tangible medium on the tangible gift card.

Abstract: A method and apparatus for enhancing electronic images allows for improved characteristics between light areas and dark areas, and is particularly effective for backlit images. A transition between light and dark image portions is detected. A determination is made from an analysis of spectral distributions as to whether an image portion is backlit. Upon detection, image data is adjusted to lighten or darken image portions to allow for improved image viewing. Use of cumulative probability distribution data associated with an electronic image facilitates isolation of backlit image portions and object image portions.

Abstract: A system and method for synchronizing a system clock in accordance with a program clock reference of a content data stream includes application of incremental delays to a local clock signal having a higher frequency than that specified by the program clock reference. The delay is made over a period defined by phase comparison between a system clock signal and a minimum delay value. Delay values are incremented proportionally to a number of clock cycles over the period. The subject system allows for display of jitter free audio or video decoded from the content data stream, and is realized in circuitry that is readily implement on an integrated circuit.

Abstract: A user interface method for executing one or more operations in a computer for interfacing an associated user with a knowledge portal (10) that is operatively associated with a plurality of data objects in a data store (12) includes the steps of: receiving a user input (202); updating, based upon the received user input, one of a current object identity (82), a preview object identity (86), and a K-map parameter (84); updating a K-map conditional upon updating one of a current object identity (82) and a K-map parameter (84); displaying in a document pane (72) at least a portion of the current object; displaying in a map pane (74) the K-map; and displaying in a preview pane (76) contents associated with the preview object.

Abstract: A high-power amplifier having a current-adding array is provided for high-speed driving of an inductive element, e.g., a deflection coil of an electron beam gun. The amplifier includes a first voltage node (U1) and a second voltage node (UV), at least one of which is connected to a regulated power supply, and a plurality of first switchable bridges (B11, B12, B13, . . . , B1k) connected in parallel between the first and second voltage nodes. Each switchable bridge includes at least one resistor (R11, R12, R13, . . . , R1k) with a resistance value that is selected so that a first resistor (R11) has a first resistance value WR11 equal to Rmin, a second resistor (R12) has a second resistance value WR12 greater than or equal to WR11 and an n-th resistor has an n-th resistance value WR1n greater than or equal to WR1n?1.

Abstract: Communications rate control is described. The rate control includes receiving a message addressed to a client device of a user. A determination is made as to a category of the message. Data of the message is synchronized between a server and the mobile device in response to one or more of the category and one or more user actions at the client device.

Abstract: In an example embodiment, a number of contending nodes and colliding nodes for a plurality of links of a network is determined. The capacity of each of the plurality of links is determined. A sum of the traffic demand of each of the plurality of links divided the throughput of each of the plurality of links is used to form a cost function for the network. One, or more, of a group consisting of a plurality of frequency assignments, a plurality of transmit powers, and a plurality of clear channel assessment (CCA) values is searched to obtain a global minimum for the cost function. The frequency assignments, transmit powers, and/or CCA values providing the global minimum for the cost function are selected.

Abstract: A method for sending a multi-rate multi-receiver message containing a multi-receiver multi-response aggregate. The multi-rate multi-receiver aggregate is transmitted until a multi-receiver multi-response aggregate embedded within the multi-rate multi-receiver aggregate is encountered. Transmission of the multi-rate multi-receiver aggregate is suspended for a predetermined time period. After the expiration of the predetermined time period, transmission of the multi-rate multi-receiver aggregate resumes.

Abstract: A deflector (1) for attachment to a spiral separator (2), for capturing and redirecting a portion of a flowing stream of material (5). The deflector (1) includes an attachment means (3), to attach the deflector (1) to the spiral separator (2), a capturing portion (4) to capture a portion of the flowing stream (5), and, a redirecting portion (6) to emit a portion (7) of the stream. A method of separating particles of different densities using the deflector device (1) in conjunction with a spiral separator (2) is also disclosed.

Abstract: In an example embodiment, a system for providing a Virtual Local Area Network (VLAN) by use of encryption states or encryption keys for identifying a VLAN. A table of data including a VLAN and an associated encryption state or key is provided for assignment of encryption states or keys, for devices in a wireless local area network.

Abstract: In an example embodiment, there is described herein a “Wireless Route Aggregation Protocol” (WRAP) that is used to aggregate multiple wireless links into a WRAP “route bundle” that functions as a single logical LAN bridge link. WRAP link aggregation can be used for example to increase the bandwidth and robustness of the wireless path between two wired Ethernet LANs.

Abstract: This invention is directed to a method and apparatus for raster image processing which allows access to the page buffer during raster image processing. The method and apparatus of the present invention allow for virtually every page presented to the raster image processor to be printed with available memory. In addition, the method and apparatus for raster image processing of the present invention significantly reduces the bandwidth required between the raster image processor and the raster image processor manager. In addition, the method and apparatus for raster image processing of the present invention has equal or better performance than those methods or apparatuses that use display lists. Further, the method and apparatus of the present invention support the use of tag data and multiple page description languages.

Abstract: In accordance with the present invention, a system and method are described for producing pure gray tones on a multi-color document output device that includes a system for operating on device independent color data having at least three color components, which color data corresponds to one or more associated electronic documents. The system and method function to extract grayscale data from such a device independent color data description, which grayscale corresponds to a rendering and a single color space. Such resultant data, inclusive of a color data portion and a grayscale portion, is thus completed in device independent form.

Abstract: The subject application is directed to a system and method for generating a composite source user interface. A text query corresponding to a text element associated with a graphical element on a display of the associated user interface is first received by a backend component. The received text query data is then directed to a data document on the associated data storage. Text data is then received from the data document of the associated data storage. Thereafter, the received text data is then communicated to the associated user interface so as to generate indicia on the associated user interface. Preferably, the indicia includes a graphical element and the text data, such as, for example and without limitation, an icon and associated text, or the like.

Abstract: In accordance with the present invention, a system and method are described for producing pure gray tones on a multi-color document output device that includes a system for operating on device independent color data having multiple color components, which color data corresponds to one or more associated electronic documents. The system and method function to extract gray data by the use of tristimulus values in a range specified by a functional relationship of a selected tristimulus value.

Abstract: A trellis-based lock detector and method for digitally modulated signals are presented. A global survivor for consecutive time indexes is computed as a maximum cumulative branch metric corresponding to a given time index for consecutive branches of the trellis structure. The invention is based on a concept that for a noise signal entering the lock detector, in contrast to an informative signal, the probability of a long succession of true evaluations of a global survivor is very small. The latter allows for using data, representative of the number of consecutive true conditions for a global survivor over an averaging time, as an informative parameter for making a decision on the status of lock detection.

Abstract: The present invention is directed to a system and method for automated accounting of document reading device usage. The system and method include a configurable accounting agent adapted to automatically generate usage reports of the document generating device and transmit the reports to one or more destinations.

Abstract: The present invention is directed to a system and method for the secure and correct deletion of data files from a data storage that bypasses the file system of an operating system. A secure erase service receives a secure erase request from a system interceptor component, which has intercepted a system call from an application. The system call interceptor component communicates with the secure erase service via an interprocess communication module. The secure erase service receives the secure erase request from the interprocess communication module and communicates the secure erase request to a secure erase library. Using the file information contained in the secure erase request, the secure erase library queries the file system of the data storage device to determine the location of data blocks containing the to be deleted data.

Abstract: A system and method for managing documents within a shared peripheral includes a network-based document management system. A document management module of defines a bookmark or symbolic link to a document stored inside or outside a document management module repository. The symbolic link is treated analogously to other documents managed by the document management module. Upon linking to a document networked, the system enables users to download a document stored in the repository to devices including a local machine or network hard drive.