Hewlett-packard Company

Hewlett-packard Development Company, L.P.

Gregory William Thelen

Blaine Douglas Gaither

Bret Alan McKee

John M Kessenich

John R Applin

Arad Rostampour

Timothy J Evans

Wendy C Hamilton

Systems, methods, and devices are provided for embodiments of the present invention to describe a technique that provides an operation region and associated operation region handler to define a virtual device for extending the functionality of an existing operating system.

Operation region describing a virtual device

A method of communicating memory mapped page priorities includes a software application storing page priority information for a memory mapped file on a computer readable medium, and an operating system reading the page priority information.

Memory mapped page priorities

A system and associated methods for rapidly displaying large text files. The system preferably includes a client process in communications with a server process. In a first embodiment, the client process receives text from the server process, parses the received text to index the text according to line numbers and saves the parsed text structures in a local cache memory. Users requests for display of specific lines of the text are thereby performed rapidly in accordance with the indexing and caching of the parsed text regardless of the size of the text file. In a second embodiment, the server process receives desired (&ldquo;hot&rdquo;) line numbers with the request for text file retrieval. The server process then returns portions (&ldquo;chunks&rdquo;) of the text file in other than sequential order. Specifically, the server process returns &ldquo;hot chunks&rdquo; (e.g., chunks containing hot lines) of the requested text file before returning other chunks of the file. The client process then displays the requested &ldquo;hot lines&rdquo; quickly regardless of the size of the text file.

Methods and system for browsing large text files

A method and apparatus virtualizes file access operations and other I/O operations in operating systems by performing string substitutions upon a file paths or other resource identifiers to convert the virtual destination of an I/O operation to a physical destination. A virtual file system translation driver is interposed between a file system driver and applications and system utilities. The virtual file system translation driver receives file access requests from the applications and system utilities, and translates the file path to virtualize the file system. In a first embodiment, the file system is partially virtualized and a user can see both the virtual file paths and the physical file paths. In second and third embodiments, the file system is completely virtualized from the point of view of the applications and system utilities. In the second embodiment, a user may start with a physical file system, and virtualize the file system by installing the virtual file system translation driver. When the driver is initially installed, all virtual file paths will be considered to translate to identically named physical file paths by default. In the third embodiment, virtual translations are automatically generated for all file paths when files and directories are created, and virtual file paths may bear limited, or no resemblance to physical file paths.

Method and apparatus for translating virtual path file access operations to physical file path access

A system for rapidly and easily searching large collections of documents using standard web browser programs as the user interface. The present invention parses a collection of text documents to identify symbols therein and builds a database file which identifies the file and line locations of each symbol identified. The database file is constructed to permit rapid searching for symbols to permit interactive use of the present invention as a search tool. A database client process interacts with the web browser via standard CGI techniques to convert browser commands and queries into appropriate server process requests. A server process receives such requests and manipulates the database files in response to the requests. Query results returned to the client process are then reformatted by the client process to return a document with hypertext links in place of search keys located in the database (e.g., an HTML page). The system of the present invention thereby provides for rapid searching of large collections of text documents which is not coupled to a specific toolset used to create any one of the documents and which uses a simple and well-known user interface, namely: web browsers.

Methods and system for using web browser to search large collections of documents

A method and apparatus virtualizes file access operations and other I/O operations in operating systems by performing string substitutions upon a file paths or other resource identifiers to convert the virtual destination of an I/O operation to a physical destination. In accordance with the present invention, a virtual file system translation driver is interposed between a file system driver and applications and system utilities. The virtual file system translation driver receives file access requests from the applications and system utilities, and translates the file path to virtualize the file system. In a first embodiment, the file system is partially virtualized and a user can see both the virtual file paths and the physical file paths. In second and third embodiments, the file system is completely virtualized from the point of view of the applications and system utilities. In the second embodiment, a user may start with a physical file system, and virtualize the file system by installing the virtual file system translation driver. When the driver is initially installed, all virtual file paths will be considered to translate to identically named physical file paths by default. In the third embodiment, virtual translations are automatically generated for all file paths when files and directories are created, and virtual file paths may bear limited, or no resemblance to physical file paths.

Growing community of inventors

Fort Collins, CO, United States of America

Gregory William Thelen