113 results about "Filename extension" patented technology

A flash drive has increased endurance and longevity by reducing writes to flash. An Endurance Translation Layer (ETL) is created in a DRAM buffer and provides temporary storage to reduce flash wear. A Smart Storage Switch (SSS) controller assigns data-type bits when categorizing host accesses as paging files used by memory management, temporary files, File Allocation Table (FAT) and File Descriptor Block (FDB) entries, and user data files, using address ranges and file extensions read from FAT. Paging files and temporary files are never written to flash. Partial-page data is packed and sector mapped by sub-sector mapping tables that are pointed to by a unified mapping table that stores the data-type bits and pointers to data or tables in DRAM. Partial sectors are packed together to reduce DRAM usage and flash wear. A spare / swap area in DRAM reduces flash wear. Reference voltages are adjusted when error correction fails.

A Virtual-Memory Device (VMD) driver and application execute on a host to increase endurance of flash memory attached to a Super Enhanced Endurance Device (SEED) or Solid-State Drive (SSD). Host accesses to flash are intercepted by the VMD driver using upper and lower-level filter drivers and categorized as data types of paging files, temporary files, meta-data, and user data files, using address ranges and file extensions read from meta-data tables. Paging files and temporary files are optionally written to flash. Full-page and partial-page data are grouped into multi-page meta-pages by data type before storage by the SSD. ramdisks and caches for storing each data type in the host DRAM are managed and flushed to the SSD by the VMD driver. Write dates are stored for pages or blocks for management functions. A spare / swap area in DRAM reduces flash wear. Reference voltages are adjusted when error correction fails.

A flash drive has increased endurance and longevity by reducing writes to flash. An Endurance Translation Layer (ETL) is created in a DRAM buffer and provides temporary storage to reduce flash wear. A Smart Storage Switch (SSS) controller assigns data-type bits when categorizing host accesses as paging files used by memory management, temporary files, File Allocation Table (FAT) and File Descriptor Block (FDB) entries, and user data files, using address ranges and file extensions read from FAT. Paging files and temporary files are never written to flash. Partial-page data is packed and sector mapped by sub-sector mapping tables that are pointed to by a unified mapping table that stores the data-type bits and pointers to data or tables in DRAM. Partial sectors are packed together to reduce DRAM usage and flash wear. A spare / swap area in DRAM reduces flash wear. Reference voltages are adjusted when error correction fails.

A controller for a Super Enhanced Endurance Device (SEED) or Solid-State Drive (SSD) increases flash endurance using a DRAM buffer. Host accesses to flash are intercepted by the controller and categorized as data types of paging files, temporary files, meta-data, and user data files, using address ranges and file extensions read from meta-data tables. Paging files and temporary files are optionally written to flash. Full-page and partial-page data are grouped into multi-page meta-pages by data type in the DRAM before storage by lower-level flash devices such as eMMC, UFS, or iSSD. Caches in the DRAM buffer for storing each data type are managed and flushed to the flash devices by the controller. Write dates are stored for pages or blocks for management functions. A spare / swap area in DRAM reduces flash wear. Reference voltages are adjusted when error correction fails.

Operating system events are monitored and a file change request of a process is detected. If the process is suspicious, then the file to be changed is backed up and then the process is allowed to change the file as requested. If it is later determined that the process is ransomware, the process is blocked and further file backups are halted. The original file is recovered and the encrypted file is discarded. If it is later determined that the process is not malicious, then further file backups are halted. Any backup files are discarded. Ransomware may be detected by comparing a file extension of the process with file extensions of any files requested to be changed, by comparing file extensions of any files requested to be changed, or by an analysis of behavior of the process itself.

The invention provides a VMD (Virtual-Memory Device) executed on a host and application thereof for enhancing flash memory endurance of an SEED (Super Enhanced Endurance Device) or an SSD (Solid-State Drive). The VMD driver utilizes a high-level or a low-level filtering driver to intercept and capture access to flash memory of the host and to sort access to the flash memory of the host into paging file data type, temporary files, meta data and user data files by using address range and file extensions read by the meta data. Optionally, the paging files and the temporary files are written in the flash memory. Full pages and local pages are grouped into multi-page metapage according to data type before SSD storage data passes. A virtual RAM disk and cache storing the data type in the host DRAM are managed and refreshed to SSD through the VMD driver. Write data is stored for blocks or pages managing functions. Flash memory abrasion is reduced in a backup / exchange area in the DRAM. The reference voltage is adjusted when error correction fails.

A processor (304) of a wireless communication device (102, 216) scans (806) a patch for any difference commands indicating that data submitted in this command has been differenced by a file-level difference based on a file extension. Memory (306) contains data representing a device management tree (DMT). The processor (304) updates data of the device management tree to provide dynamic update of the DMT to facilitate software updates based on the patch.

A Virtual-Memory Device (VMD) driver and application execute on a host to increase endurance of flash memory attached to a Super Enhanced Endurance Device (SEED) or Solid-State Drive (SSD). Host accesses to flash are intercepted by the VMD driver using upper and lower-level filter drivers and categorized as data types of paging files, temporary files, meta-data, and user data files, using address ranges and file extensions read from meta-data tables. Paging files and temporary files are optionally written to flash. Full-page and partial-page data are grouped into multi-page meta-pages by data type before storage by the SSD. Ramdisks and caches for storing each data type in the host DRAM are managed and flushed to the SSD by the VMD driver. Write dates are stored for pages or blocks for management functions. A spare / swap area in DRAM reduces flash wear. Reference voltages are adjusted when error correction fails.

A recording medium in which a left-view video stream and a right-view video stream are recorded in an interleaved transport stream file. The interleaved transport stream file is identified by a combination of (i) an equivalent identification number being equivalent with the file reference information and (ii) a file extension indicating that video streams are stored in the interleaved manner, the equivalent identification number. Among Extents that constitute the interleaved transport stream file, Extents constituting the left-view or right-view video stream are identified as a normal-format transport stream file by a combination of (i) the equivalent identification number being equivalent with the file reference information and (ii) a file extension indicating that video streams are stored in a normal manner.

Files of computer documents are classified into confidential levels without extracting and analyzing contents of the files. Files created by particular users may be clustered into groups of files based on file characteristics, such as file type (e.g., file extension) and file naming convention. A prediction confidential score may be generated for each group of files. A log of a file retention resource may be consulted to identify files created by users. A file created by a user may be assigned a prediction confidential score of a group of files having the same file characteristic as the file and created by the same user. The prediction confidential score may be used to determine a confidential level of the file when the file is found to be inaccessible.

A system and method is disclosed for implementing a data loss prevention (DLP) system capable of detecting transmission attempts involving encrypted data. In response to detecting that the data is encrypted, such a DLP system may perform any number of configurable DLP actions, such as blocking the data transmission attempt and / or sequestering the data. The DLP system may determine that the data is encrypted, based at least in part, on a value of a compressibility measure of the data, such as a compression ratio. The DLP system may leverage other operating system and / or file system capabilities, such as file extensions, magic numbers, or other utilities. The DLP system may determine if the data is compressed rather than encrypted by attempting to decompress the file.

Methods and a system are provided for generating a list of user selectable files for backup based upon program properties. The file space on a user's computer or a computer network is searched for application programs, data files and file extension types stored therein. Once these items are located, they are correlated together in a registry. The correlated items are then sorted and ranked in a list for backup based on a sealing factor. The sorted and ranked list is presented to the user in a graphical user interface. The user is then able to easily select the files, applications, or directories that have the highest usage for backup. The user-selected list of files for backup is supplied to backup application program. The user-selected files and other iteration information are stored in a memory for future reference.

Methods and apparatuses for managing file extensions in a processing system. An exemplary method of managing file extensions in a digital processing system involves a user interface and a plurality of files, each file having a name that comprises a filename and an extension. The method includes associating a file with an indicator which is user selectable for a single file in a plurality of files in said digital processing system and which indicates how to display an extension of the file, and assigning a value to the indicator, and displaying a displayed name of the file in the user interface in a style determined by the indicator.

The invention is suitable for the technical field of computer data transmission and provides a method and system for uploading files in a classifying and batching mode. The method comprises the steps that a terminal classifies the files in folders to be uploaded according to filename extensions, corresponding uploading subfolders are set up according to different file types, folder names of the uploading subfolders comprise the folder names and the file types of the folders to be uploaded, the files are copied to the uploading subfolders with the folder names comprising the file types of the files, the uploading subfolders are compressed into packages with names the same as the folder names of the uploading subfolders, and the packages are uploaded into storage servers. According to the method and the system, the files of a plurality of types are classified and uploaded to the different storage servers, the defect that the file batch uploading function is operated for many times due to difference of the file types is overcome, error and leakage of uploading are reduced, and the work efficiency is improved.

A near natural language format is used to codify knowledge (including information, programs, rules, and procedures). The codified knowledge is stored in knowledge snippet files according to a nomenclature in which each file has a name relating to a particular interrogatory and the type of the interrogatory (e.g., having a file extension of: “.what”, “.how”, “.where”, “.which”, “.when”, “.who”, or “.why”). The content of each of the knowledge snippet files comprises an answer to the interrogatory. Language systems and methods, including a run-time environment to process or execute the knowledge, are provided to use the knowledge so represented. The knowledge may also be presented in many different perspectives or views.

A one-box system and process for controlling Internet usage by users on a network. The system controls usage by combining two or more of the following functions into a single operating unit: 1) monitoring and logging internet access on a user and / or work station basis; 2) preventing or authorizing access on a user and / or work station basis to ULR's (or groups of URL's) that have been previously designated an inappropriate or appropriate, respectively, for that user or work station; 3) preventing or authorizing the downloading of files with any pre-designated file extension to any user or workstation; 4) blocking of peer-to-peer access of any pre-designated Internet file-sharing or other service (such as Kazaa, RealPlayer, AOL Instant Messaging, etc); 5) periodically or immediately alerting a designated representative of the attempt by any user or work station to access of pre-determined inappropriate site or file; 6) allowing remote review of the Internet activity log for any user by anyone (such as a student's parents) with knowledge of that user's log-in information (i.e., name and password); and 7) caching downloaded Internet objects for subsequent in-network retrieval. The system and process of this invention can also be configured to perform the traditional firewall function as well.

The invention relates to a cross-platform detection method and system for malicious files in a cloud environment. The detection method includes the steps: 1) acquiring original suspicious malicious files, storing the original suspicious malicious files in a distributed storage cluster in the cloud environment and isolating the malicious files; 2) manufacturing file copies of the malicious files, recognizing formats of the filename extension of the file copy of each malicious file and uploading the recognized file copy of each malicious file to a WEB end; 3) only downloading the copies of the malicious files from the WEB end according to different operating system types to security sandbox virtual machines corresponding to respective systems, and detecting characteristics and / or running behaviors of the malicious files; 4) submitting and summarizing detection results of the malicious files in the security sandbox virtual machines, associating the detection results with the original malicious files and then detecting cross-platform malicious files. Universality and automation degree of malicious file detection are improved, the malicious files can be preprocessed in batch by the aid of cloud platform technology, and the processing efficiency of malicious file detection is greatly improved.

In the data structure for managing reproduction of various data streams, at least one navigation directory, a stream directory and an auxiliary directory is provided. The stream directory includes at least one stream file of main data and at least one stream file of supplemental data. The auxiliary directory has at least one auxiliary file of auxiliary data associated with the supplemental data, and the auxiliary file has a different file name extension than the stream file name extensions. The navigation directory includes navigation information for reproducing the main and supplemental data.

Disclosed are a portable combination apparatus capable of copying image files between recording media and a method thereof. The portable combination apparatus includes a first and a second recording medium; a display for displaying a menu screen including a first menu for copying an image file stored in the first recording medium into the second recording medium; an operation unit for enabling a user to select the first menu, on the basis of the displayed menu screen; and a control unit for displaying the menu screen on the display, and if the user selects the first menu through the operation unit, copying the image file stored in the first recording medium into the second recording medium under same file name and file extension.

The invention discloses an information query method and device, computer equipment and a storage medium. The method comprises the steps of acquiring multimedia files; performing regular matching on file extension names of the multimedia files, and determining the file types of the multimedia files; analyzing the multimedia files according to preset analysis modes corresponding to the file types toobtain content text information of the multimedia files and timestamp information corresponding to the content text information; establishing mapping relationships among file identifiers of the multimedia files, the content text information and the timestamp information, and storing the mapping relationships as file transfer records in a multimedia knowledge base; and if a query request of a useris received, matching a query keyword with the content text information on the basis of the multimedia knowledge base, and taking the successfully matched file transfer record as a query result. According to the technical scheme, the multimedia files of different file types can be analyzed and queried, so that the query efficiency of the multimedia files is improved.

In publishing to a Web server, a set of placement rules are entered by a user. These placement rules set a location on the Web server for storing the various files supporting a request to publish to the Web server. Type identifiers, such as file extensions, Multipurpose Internet Mail Extensions (MIME) types, and the like, are used in the rules to assign certain types of files to the desired locations. When a developer or designer requests to publish to the Web server, all of the files supporting this publication request are read to determine their file type identifiers. Using the type identifiers, a location is assigned to each of the files that corresponds to the location assigned in the placement rules.

A Virtual-Memory Device (VMD) driver and application execute on a host to increase endurance of flash memory attached to a Super Enhanced Endurance Device (SEED) or Solid-State Drive (SSD). Host accesses to flash are intercepted by the VMD driver using upper and lower-level filter drivers and categorized as data types of paging files, temporary files, meta-data, and user data files, using address ranges and file extensions read from meta-data tables. Paging files and temporary files are optionally written to flash. Full-page and partial-page data are grouped into multi-page meta-pages by data type before storage by the SSD. ramdisks and caches for storing each data type in the host DRAM are managed and flushed to the SSD by the VMD driver. Write dates are stored for pages or blocks for management functions. A spare / swap area in DRAM reduces flash wear. Reference voltages are adjusted when error correction fails.

Described is a method and system for downloading information to a mobile device. The system and method provide a mechanism for selectively identifying the type of information that can be downloaded to the mobile device. In one embodiment, the mechanism includes a user interface resident on the mobile device that allows user selection of the type of information. Alternatively, the mechanism includes a profile maintained on a server. The profile identifies the type of information, such as a file extension, that a particular mobile device supports. In addition, the type of information may be based on a file size associated with the information. Once the type of information is identified, the server downloads the identified type of information to the mobile device without downloading undesired types of information. Thus, the synchronization session is efficiently managed so that undesired information is not downloaded to the mobile device.

Described is a method and system for downloading information to a mobile device. The system and method provide a mechanism for selectively identifying the type of information that can be downloaded to the mobile device. In one embodiment, the mechanism includes a user interface resident on the mobile device that allows user selection of the type of information. Alternatively, the mechanism includes a profile maintained on a server. The profile identifies the type of information, such as a file extension, that a particular mobile device supports. In addition, the type of information may be based on a file size associated with the information. Once the type of information is identified, the server downloads the identified type of information to the mobile device without downloading undesired types of information. Thus, the synchronization session is efficiently managed so that undesired information is not downloaded to the mobile device.

In one embodiment, a protected archive is checked for malicious content by checking a file size of the archive and / or examining the archive for notable characteristics indicative of malicious content. The notable characteristics may include values in a header of the archive. For example, the file name extension of a file contained in the archive and the compression method used to create the archive may be taken into account in determining whether the archive has malicious content, such as a worm or a virus. Embodiments of the present invention allow for detection of malicious content in the protected archive without necessarily having to extract files from the archive.