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555 results about "Root directory" patented technology

In a computer file system, and primarily used in the Unix and Unix-like operating systems, the root directory is the first or top-most directory in a hierarchy. It can be likened to the trunk of a tree, as the starting point where all branches originate from. The root file system is the file system contained on the same disk partition on which the root directory is located; it is the filesystem on top of which all other file systems are mounted as the system boots up.

Fine grit document and catalogs version management method based on snapshot

InactiveCN101162469AShort execution timeFlexible configuration version generation strategySpecial data processing applicationsGranularityUsability
The present invention relates to a fine-granularity files and directory edition management method based on snapshots, belonging to the multi-version document system field. The present invention separates a name space consisting of files and dirnames in a whole file system from an edition space representing the generating periods of different editions, and adopts relatively independent strategies to execute management, forming a hierarchical two-dimensional structure, i.e. forming a hierarchical structure from a root directory to a file in the name space; in the edition space, the editions of files and directory are organized through an index structure chronologically, forming a hierarchical structure in the edition space. The retrieval of the name space adopts an index strategy based on dynamic hash. The retrieval of the edition space adopts an index strategy based on a red-black tree. The directory edition and file edition respectively adopt a red-black tree structure variant aiming at the respective characteristics. The present invention can greatly improve the usability and the performance of the system, and controls the amount of consumption of time and space resulting from the maintenance of historical editions in an acceptable scope.
Owner:TSINGHUA UNIV

'Data great tracking' tax controlling system and tax controlling terminal based on EPC, EBC article internet

Construct and operation of a large-scale tracking tax control system for circulation tax verification amount and note control, note verification and tax control and data, based on EPC and EBC goods web, as well as a relevant tax control terminal. State Administration of Taxation provides an EPC code root directory DNS server; production enterprises and merchandising enterprises establish EPC code allocation servers, EPC system Savant servers, ONS servers and PML databases, in order to construct a commodity goods web based on EPC; State Administration of Taxation comprises an EBC code root directory DNS server and an EBC code allocation server; different levels of tax administrations and customs are composed of EBC system Savant servers, ONS databases and PML databases, so as to construct a nationwide goods web for EBC electronic invoices, machines and tools; as for all product arrangement RFID verification amount vouchers, the system utilizes RFID decoders to record commodity primary information and goods flow path information; all the enterprises utilize EBC tax control machines and tools to add EBC codes into invoice contents electronic data, and instaneously transmit to downstream tax administrations for comprehensive comparison; all market law enforcement agencies and purchasers and consumers can use EPC interpreters to verify commodity RFIDs, in order to form a powerful tax control system that covers everywhere.
Owner:SICHUAN ZHENGDAOTIANHE INFORMATION TECH

Multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment

The invention discloses a multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment and belongs to the technical field of an operation system of mobile equipment. The multiple operation system switching method includes: initializing equipment for internal storage, internet equipment, a watchdog and I/O (input/output) firstly after the ARM framework mobile equipment boots, entering a selection interface of the operation system, setting corresponding booting parameters by a boot loader according to the operation system selected by a user, sending booting interrupt to a server end, searching a corresponding system kernel and file systems by a server after an interruption signal is truncated by the server, loading the system kernel to a client end in the form of files, burning into a set Flash partition before booting, mounting the file system under a root directory directly via an nfs (network file system) network protocol, and completing network booting of the operation system. By the aid of the multiple operation system switching method, preinstallation of the operation system on the ARM framework mobile terminal equipment is not required, and the purpose of realizing booting multiple operation systems via the network without local operation system is achieved.
Owner:CENT SOUTH UNIV

Remote updating method for Linux operating system

InactiveCN103530150ARealize remote installationImplement fallbackProgram loading/initiatingTransmissionOperational systemGNU/Linux
The invention discloses a remote updating method for the Linux operating system. The remote updating method includes the steps that A, an Linux startup medium guides at least one target device to start a system updating program and transmits the version identification of an operating system installation package file needing installating or updating to the system updating program; the operating system installation package file comprises at least a root file system file, an Linux inner core mirror image file and an Linux temporary file system file; B, the system updating program downloads an operating system installation package file in a corresponding version and a data abstract file of the operating system installation package file from an FTP server according to the version identification, and detects whether the data abstract file is correct or not, and if yes, the step C continues to be executed; C, startup codes are installed on a target medium of the appointed target device; D, the downloaded operating system installation package file is decompressed to a root directory of the starting medium, and the operating system is restarted. According to the scheme, the remote updating method can reduce complexity and workload of user operation, facilitates large-scale updating and has good reversibility.
Owner:EISOO SOFTWARE

File recovery method and device of linux system

The invention discloses a file recovery method and device of a linux system. The file recovery method and device of the linux system are used for recovering Ext4 files which are deleted through rm by mistake on a linux server, and avoiding enormous losses caused due to the fact that important data of the server are lost. The method includes the steps that after file data of an Ext4 file system are deleted by mistake, a disk partition where the file data which are deleted by mistake are located is recorded as a disk partition to be recovered; a root directory of the linux system is switched to; the position of the disk partition to be recovered is sought for in a directory tree to obtain position information; the disk partition to be recovered is unloaded according to the position information; an inode value is check to confirm that the file data which are deleted by mistake are located in the root directory of the linux system at present; a disk traversal tool is downloaded and installed; the disk partition to be recovered is traversed, a list of all files with invalid inode information is obtained, and the file data which are deleted by mistake are found out; the inode information corresponding to the file data which are deleted by mistake is changed to be valid.
Owner:上海天脉聚源文化传媒有限公司

Importing method of DICOM (Digital Imaging and Communications in Medicine) image

The invention provides an importing method of a DICOM (Digital Imaging and Communications in Medicine) image to solve the problem in the prior art that required image data can not be quickly found during the three-dimensional reconstruction of a medical image. The method comprises the following steps: obtaining one group of DICOM image files, wherein each DICOM image file in one group of DICOM image files comprises a patient identifier, image position information, acquisition time and a serial number corresponding to the DICOM image file; according to the patient identifier, the image position information, the acquisition time and the serial number, classifying one group of DICOM image files, obtaining multiple groups of DICOM image files of the same patient, the same thickness, the same tangent plane and the same stage, wherein the multiple groups of DICOM image files are sequentially arranged according to an axial position direction; according to the patient types, the section thicknesses, the tangent plane types and the stage types of the multiple groups of DICOM image files, generating a nesting folder; and according to a root directory path of the nesting folder, independently importing the multiple groups of DICOM image files into the nesting folder. The importing method is suitable for the field of the three-dimensional reconstruction of images.
Owner:QINGDAO HISENSE MEDICAL EQUIP

Credible website identity installation and identification method

ActiveCN102611707ASolve the installationSolve security identification problems such as the inability to prevent dns hijackingUser identity/authority verificationData switching networksThird partyDNS hijacking
The invention discloses a credible website identity installation and identification method which comprises the following steps that: website management equipment sends the information of a website on which a credible identity needs to be installed and the basic information of an enterprise to a third party website authentication institution to authenticate the credibility; if the credibility authentication is passed, the website management equipment uploads a generated credible identity document with a signature to a root directory of the website or to a website server to configure; when the browser of client terminal equipment accesses a website, the client terminal equipment fist judges whether the website has the credible identification document or not; if yes, the composition of the credible identity document is judged and authorization is carried out; and if the authentication is passed, the credible authentication identity of the website is displayed through the client terminal equipment. The invention can solve the installation problem of the credible identities of existing websites and the safety identification problems that domain name system (dns) hijacking cannot be prevented and the like, and provides the method which is simpler, safer, easier to identify and has better compatibility.
Owner:北龙中网(北京)科技有限责任公司
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