428 results about "File allocation" patented technology

A write interface in a file server provides permission management for concurrent access to data blocks of a file, ensures correct use and update of indirect blocks in a tree of the file, preallocates file blocks when the file is extended, solves access conflicts for concurrent reads and writes to the same block, and permits the use of pipelined processors. For example, a write operation includes obtaining a per file allocation mutex (mutually exclusive lock), preallocating a metadata block, releasing the allocation mutex, issuing an asynchronous write request for writing to the file, waiting for the asynchronous write request to complete, obtaining the allocation mutex, committing the preallocated metadata block, and releasing the allocation mutex. Since no locks are held during the writing of data to the on-disk storage and this data write takes the majority of the time, the method enhances concurrency while maintaining data integrity.

The present invention is a method for integrating a file system with a RAID array that exports precise information about the arrangement of data blocks in the RAID subsystem. The file system examines this information and uses it to optimize the location of blocks as they are written to the RAID system. Thus, the system uses explicit knowledge of the underlying RAID disk layout to schedule disk allocation. The present invention uses separate current-write location (CWL) pointers for each disk in the disk array where the pointers simply advance through the disks as writes occur. The algorithm used has two primary goals. The first goal is to keep the CWL pointers as close together as possible, thereby improving RAID efficiency by writing to multiple blocks in the stripe simultaneously. The second goal is to allocate adjacent blocks in a file on the same disk, thereby improving read back performance. The present invention satisfies the first goal by always writing on the disk with the lowest CWL pointer. For the second goal, a new disk is chosen only when the algorithm starts allocating space for a new file, or when it has allocated N blocks on the same disk for a single file. A sufficient number of blocks is defined as all the buffers in a chunk of N sequential buffers in a file. The result is that CWL pointers are never more than N blocks apart on different disks, and large files have N consecutive blocks on the same disk.

A computer-based customer tracking system uses a passive biometric identification for identifying customers. Neither the customer, nor any establishment personnel, are required to enter any informational data with respect to the customer; identification is done completely biometrically. Biometric identification information is sent to a central computer processor, which searches files in a library for matching biometric data. If no match is found, the processor opens a new file in the library, assigning a code or identification number to the file. Information with respect to the customer's biometric data, along with any transactional information, are stored in the file. If prior activity information stored in the file exceeds a predetermined level, information with respect to the customer's prior activity is retrieved from the file and sent to a terminal, preferably at the location of the transaction. Any new information from the transaction is then sent to the processor and stored for future access. The processor scans the files periodically, and deletes files for which the activity level in the file is below a certain predetermined level over a preselected time period. Deletion of inactive files precludes the processor memory from being overloaded with information which is not useful to the establishment, and also reduces the amount of time necessary for the processor to search library files for biometric matches.

A method is disclosed for integrating a file system with a RAID array that exports precise information about the arrangement of data blocks in the RAID subsystem. The file system examines this information and uses it to optimize the location of blocks as they are written to the RAID system. Thus, the system uses explicit knowledge of the underlying RAID disk layout to schedule disk allocation. The method uses separate current-write location (CWL) pointers for each disk in the disk array where the pointers simply advance through the disks as writes occur. The algorithm used has two primary goals. The first goal is to keep the CWL pointers as close together as possible, thereby improving RAID efficiency by writing to multiple blocks in the stripe simultaneously. The second goal is to allocate adjacent blocks in a file on the same disk, thereby improving read back performance. The method satisfies the first goal by always writing on the disk with the lowest CWL pointer. For the second goal, a new disks chosen only when the algorithm starts allocating space for a new file, or when it has allocated N blocks on the same disk for a single file. A sufficient number of blocks is defined as all the buffers in a chunk of N sequential buffers in a file. The result is that CWL pointers are never more than N blocks apart on different disks, and large files have N consecutive blocks on the same disk.

A system and method for providing, managing, and accessing a multi-user secure portable database using secure memory cards is provided. The database has a secure portion for storing security keys and a non-secure portion for encrypted data files. Access to the encrypted data files is controlled by assigning access rights through an access control matrix to each encrypted data file according to a hierarchical structure of users. A user requesting access is identified in the hierarchy, associated with a key for allowing the requested access, and the requested access allowed to a file in accordance with the rights allocated through the access control matrix. A patient can selectively grant access to encrypted medical records on his card to a physician. Authentication of the owner/patient is preferably required. Other records required by emergency medical personnel are readable from the same card without requiring permission from the patient.

Automatic rules-based synchronization of digital files on a source device and a target device coupled to it. A source computer executes a synchronization engine for managing transfer of files from a source database to a target device coupled to the computer as a function of a defined storage capacity of the device. The synchronization engine is configured to receive user-defined rules for selecting which of the files are to be transferred to the device and assigning priorities to the files. The synchronization engine builds a designated list of the files to be transferred according to the priorities defined by the rules.

A system that facilitates opening of a bank account by banking personnel for a customer. The account opening system includes an automatic rate determination feature that uses customer information, account information and other criteria to determine an account interest rate. The rate determination system may also mediate rate negotiation between a personal banker and the customer by limiting the increase in rate awarded by the personal banker. An auditing system assigns numbers to a series of profiles, each describing a request to open an account. Profiles to be audited are determined by generating random numbers that fall within the range of assigned profile numbers. Random number generation is repeated until a threshold percentage of profiles have been selected for auditing. The account opening system includes a system for tracking the progress of the account application and for organizing information recorded by the personal banker during interactions with the customer.

A computer-implemented method is provided for ranking files from an Internet search. In one embodiment, the method comprises assigning a score to each file based on at least one of the following factors: recency, editorial popularity, clickthru popularity, favorites metadata, or favorites collaborative filtering. The files may be organized based on the assigned scores to provide users with more accurate search results.

A processor-based method for preparing a tax return using multiple service providers. The method includes receiving at a first service provider an image file that includes a plurality of data values and assigning at the first service provider the image file to a form having a plurality of predefined field names, wherein each of the plurality data values belong to one of the plurality of predefined field names. The method also includes receiving at a second service provider the image file and an input form having a plurality of input fields corresponding to the plurality of predefined field names and associating at the second service provider the plurality of data values from the image file with the plurality of input fields.

A system and method may be provided that allows users to store, retrieve, and manipulate on-demand media content and data stored on a remote server network in an on-demand media delivery system. More particularly, the system may allow a user to access his or her on-demand media account from user equipment in different locations as long as the current user equipment can communicate with a remote server that stores user-specific information. The system upon user selection may freeze the delivery of on-demand media at a particular point and allow the user to resume the media at a later time from some other network location in system. Users may upload personal images or files to an on-demand delivery server for later retrieval and display. Users may be permitted to assign access rights to the uploaded files.

There is provided a parallel processing computer for executing a plurality of threads concurrently and in parallel. The computer includes: a thread activation controller for determining whether or not each of threads, which are exclusively executable program fragments, is ready-to-run, to put the thread determined ready-to-run into a ready thread queue as ready-to-run thread; and a thread execution controller having a pre-load unit, an EU allocation and trigger unit, a plurality of thread execution units and a plurality of register files including a plurality of registers, and the pre-load unit, prior to when each ready-to-run thread in the ready thread queue is executed, allocates a free register file of the plurality of register files to the each ready-to-run thread, to load initial data for the each ready-to-run thread into the allocated register file, and the EU allocation and trigger unit, when there is a thread execution unit in idle state of the plurality of thread execution unit, retrieves ready-to-run thread from the top of the ready thread queue, and to allocate the retrieved ready-to-run thread to the thread execution unit in idle state, and to couple the register file loaded the initial data for the ready-to-run thread with the allocated thread execution unit in idle state, and to trigger the ready-to-run thread. The plurality of thread execution units execute the triggered threads concurrently in parallel.

A computer system and methods for securing files in a file system with storage resources accessible to an authenticable user using an untrusted client device in a semi-trusted client threat model. Each file is secured in the file system in one or more ciphertext blocks along with the file metadata. Each file is assigned a unique file key FK to encrypt the file. A wrapping key WK assigned to the file is used for encrypting the file key FK to produce a wrapped file key WFK. The file is encrypted block by block to produce corresponding ciphertext blocks and corresponding authentication tags. The authentication tags are stored in the file metadata, along with an ID of the wrapping key WK, wrapped file key WFK, last key rotation time, an Access Control List (ACL), etc. The integrity of ciphertext blocks is ensured by authentication tags and the integrity of the metadata is ensured by a message authentication code (MAC).

The invention relates to an object file organization method based on an object storage device, comprising the following steps of: establishing the layout of an object file system in a disk, loading information including object description, object bitmap and the like in a memory; detecting the size of the object file by a space allocator before allocating the space; if the size of the object file is acquired, adopting a pre-allocating method to allocate space for the object file on the disk; if the size of the object file can not be acquired, firstly writing part data of the object file into a buffer zone; detecting whether the buffer zone is fully filled or whether the client needs to release the caching data, allocating space for the data in the buffer zone on the disk, and writing the data into the disk; and when the data in the buffer zone is far larger than size of the logic data sub-block, allocating storage space for the data by the space allocator. The invention adopts the method of continuously allocating a plurality of data blocks, thus reducing the time for searching and allocating free blocks, and making up the limitation and disadvantage of object file system disk space allocation in the current distribution-type file system.

A virtual media (VM) method for mounting a folder stored in a storage device of a client for accessed by a server as a virtual drive. The client assigns virtual cluster indices to each file in the folder, and creates a file-cluster index table to store the assigned virtual cluster indices. The client also creates a VM file system complying with the FAT file system standard except that only subdirectories and no data files are stored in the VM FAT file system. The VM FAT table uses virtual cluster indices rather than actual cluster indices. Data written by the server are stored in a temporary data area without modifying the actual file system of the storage device. The virtual sectors requested to be written are “dirty”, and the dirty sector numbers and corresponding temporary sector numbers are stored in a dirty sector index table for use in a write-back step.

The invention discloses a cloud synchronized method of files and a cloud storage server. The cloud synchronized method comprises the following steps: a metadata information table of a user is established, a unique file number is allocated to a file when the file is established for the user, and the file number is added in the metadata information table; an operating command of the user on the file is carried out, a new operation code is generated according to the operation command of each time of the user, and the operation code is added to the metadata information table so as to update the metadata information table; an operation code stored by a user terminal is acquired and compared with the operation code stored by a server, and if the two operation codes are not consistent, the file is synchronously updated according to the difference of the operation codes. The cloud storage server comprises a control module, an updating module and a synchronizing module. According to the technical scheme provided by the invention, a mechanism which is simple, high effective, convenient in management and easy in expansion is realized on a cloud storage platform, and the file synchronization among different terminals is effectively realized.

Information in a database collection of knowledge resources is evaluated by collecting a plurality of documents having non-unique values on a shared attribute into an information aggregate; assigning to each document an usefulness value; and calculating and visualizing the knowledge capital of the aggregate as a sum of the usefulness values for all documents in the aggregate.

It is proposed a solution enabling the use of a personal portable device over a network comprising terminals allowing a wireless communication with that device without implying each time a new awkward pairing with the terminals. This is achieved by allocating an unique address to a personalized profile. Said unique address will be used for a pairing procedure between a terminal of the network and a personal portable device. After a successful pairing, such initialization will be affected to said personalized profile. Latter will be used for future wireless communication between said personal portable device and a terminal. Advantageously, a pairing procedure will not be anymore necessary after performing once such initialization since for a set up of a wireless communication some parameters affected to the called personal profile will be used. Among other, the unique address allocated to said personalized profile will be assigned to said terminal.