1134results about How to "Avoid data" patented technology

A system and method for calculating and storing block fingerprints for data deduplication. A fingerprint extraction layer generates a fingerprint of a predefined size, e.g., 64 bits, for each data block stored by a storage system. Each fingerprint is stored in a fingerprint record, and the fingerprint records are, in turn, stored in a fingerprint database for access by the data deduplication module. The data deduplication module may periodically compare the fingerprints to identify duplicate fingerprints, which, in turn, indicate duplicate data blocks.

A novel and useful apparatus for and method of coordinating the allocation of transmission and reception availability and/or unavailability periods for use in a communications device incorporating collocated multiple radios. The mechanism provide both centralized and distributed coordination to enable the coordination (e.g., to achieve coexistence) of multiple radio access communication devices (RACDs) collocated in a single device such as a mobile station. A distributed activity coordinator modifies the activity pattern of multiple RACDs. The activity pattern comprises a set of radio access specific modes of operation, (e.g., IEEE 802.16 Normal, Sleep, Scan or Idle modes, 3GPP GSM/EDGE operation mode (PTM, IDLE, Connected, DTM modes), etc.) and a compatible set of wake-up events, such as reception and transmission availability periods. To prevent interference and possible loss of data, a radio access is prevented from transmitting or receiving data packets while another radio access is transmitting or receiving. In the event two or more RATs desire to be active at the same time, the mechanism negotiates an availability pattern between the MS and a corresponding BS to achieve coordination between the RATs.

A method and computer program product identify the location of a bad block on a disk platter of a hard disk drive, determine an avoidance area extending from the bad block, and prevent data from being written to the avoidance area.

A method for efficient backup and restore using metadata mapping comprises maintaining a first backup aggregation associated with a primary data object of a primary host at a secondary host, wherein the first backup aggregation includes a first backup version of the primary data object stored within a secondary data object at the secondary host. The method further comprises generating a second backup aggregation, wherein the second backup aggregation includes a second backup version of the primary data object and a backup metadata object corresponding to the secondary data object. The backup metadata object includes a pointer to the second backup version. The method may further comprise restoring the secondary data object, wherein said restoring comprises using the pointer to access the second backup version of the primary data object to restore at least a portion of the secondary data object.

An automated electronic information backup, storage migration, and recovery system includes techniques for automatically observing all file events over a plurality of computing devices. The observed file events are mapped to the applications producing them. A relevancy of those file events are determined based on an application information repository. Business rules are produced based on this information to automatically backup all relevant file event changes and restore or migrate backed up information when necessary.

A method and apparatus for copying or moving a rights object having right information regarding digital contents between a device and a portable storage device to copy or move the digital contents there between are provided. According to the method and apparatus, the digital works can be prevented from being recklessly and randomly copied and moved, and therefore, copyright can be protected. In addition, data loss or unauthorized access can be prevented.

A mobile terminal transmits an N-th authentication key to an authentication server when the mobile terminal has moved from a coverage area under a certain radio access point to a coverage area under another radio access point. The N-th authentication key is generated by applying a hash function to a random number a number of times one smaller than an (N−1)th authentication key which was transmitted when the mobile terminal moved to the coverage area under the certain radio access point. Upon receipt of the N-th authentication key from the mobile terminal, the authentication server applies the hash function once to the N-th authentication key, and compares the result with the (N−1)th authentication key. Then, the authentication server determines that the authentication is successful when there is a match between both keys.

An online file storage system having secure file drawer and safe is disclosed for securely storing and sharing confidential files. The system comprises a web-based user interface, tools for setting up server-side encryption method and client-side encryption method, tools for synchronizing encryption between different computers, tools for uploading files, tools for tracking files, tools for granting the right of access to files to the owner of other safes, and tools for generating authenticity certificate for proving the upload time and the substance of the files in a future time.

A nonvolatile RAM allows a read/write operation to be performed in a random manner with respect to a memory area, which is divided into a plurality of memory arrays each including a plurality of memory cells. Upon detection of an initialization signal, initialization is performed on at least one memory array, which is selected in advance. In addition, a disconnection control signal occurs so as to disconnect an access by an external device during a prescribed period for performing the initialization. The nonvolatile RAM is capable of protecting data from being irregularly read, modified, and reloaded with respect to at least one memory array, which is selected in advance, even when the nonvolatile RAM is frequently accessed by a prescribed application.

Computer-and network-based methods and systems for transmission-based billing are provided. Example embodiments provide a Packet-Based Billing System ("PBBS"), which enables application providers, such as carriers and content providers, to bill subscribers for the use of content on mobile subscriber devices, such as wireless devices, on a per-application, per-user basis based upon the extent of the usage. Embodiments of the present invention can also be used to bill subscribers for the use of content on a per-application, per-user basis for wired subscriber devices as well, using the same techniques. In operation, the PBBS provides modified content by inserting billing and tracking code into content returned to a requesting device. The modified content, when executed, tracks the amount of data sent and received between the content and a network and posts the accumulated data to a proxy/billing server according to business rules for an interval/frequency to post such data. The proxy/billing server stores the raw billing data and an accounting program retrieves the billing data to generate customer (call) data records. Business rules that specific different charges for different content or users can be incorporated into the system.

A system and method for efficiently reducing latency of accessing an index for a data segment stored on a server. A server both removes duplicate data and prevents duplicate data from being stored in a shared data storage. The file server is coupled to an index storage subsystem holding fingerprint and pointer value pairs corresponding to a data segment stored in the shared data storage. The pairs are stored in a predetermined order. The file server utilizes an ordered binary search tree to identify a particular block of multiple blocks within the index storage subsystem corresponding to a received memory access request. The index storage subsystem determines whether an entry corresponding to the memory access request is located within the identified block. Based on at least this determination, the file server processes the memory access request accordingly. In one embodiment, the index storage subsystem is a solid-state disk (SSD).

A communication relay apparatus wherein the error rate characteristic of a relay destination is improved to raise the throughput, while reducing the given interference power to prevent the reduction of the throughput of the whole communication system. In the apparatus, a signal addressed to a base station is received (ST1010), and a decoding process and other processes are performed (ST1020). A bit error determination is performed (ST1030), and if there is no bit error, a reproduction/relay process (ST1050) is performed. If there is any bit error, a threshold-based determination of reception quality is performed for each of subcarriers (ST1120-1130). If the reception quality is greater than a threshold value, the corresponding subcarrier is outputted (ST1140); otherwise, the corresponding subcarrier is not relayed (ST1150). A signal, which has been subjected to either process, is transmitted (ST1060).

The invention relates to a method for efficiently performing a Se NB change for a UE in dual connectivity. When reconfiguring a data radio bearer going via the Se NB to another target base station, the UE may compile a PDCP status report comprising status information for all of the data radio bearer going via the Se NB, accompanied respectively by a radio bearer ID to identify the radio bearer to which the status report information pertains. Further, the PDCP status report is directly transmitted by the UE to the Me NB to avoid the backhaul delay between the Se NB and the Me NB; this may be done by using a signaling radio bearer (e.g. RRC message), or data radio bearer to the Me NB (e.g. PDCP control PDU), or by using a physical channel transmission to the Me NB (e.g. MAC CE).

An authority limit management method is proposed for a digital media storage. The digital media storage includes at least one micro processor and at least one memory unit and connected to an access device. A classification authorization code index (CAC index) and a plurality of classification operation commands (COC) is pre-stored in the digital media storage and an identification code is set for the access device. The classification operation commands is performed to calculate a classification authorization code when the digital media storage is connected to the access device for initial transmission protocol. The authority limit of the memory unit for the access device is granted to the access device according to the classification authorization code. Therefore, the data of the digital media storage can be prevented from illegal copy or hacker.

After a digital multi-function peripheral establishes a connection with a mobile phone once, it rejects connection establishment requests made to a wireless communication section by other devices. Moreover, after a connection is established with a mobile phone once, the digital multi-function peripheral stops sending of the address of the wireless communication section through a reader/writer. After completing the sending/receiving of data, the digital multi-function peripheral and the mobile phone delete the addresses of their partner devices stored in them, respectively, for use in sending/receiving data.

A method for identifying Serial Peripheral Interface (SPI) compatible serial interface memory devices. A microprocessor sends a single command requesting identification information to an SPI device installed on the SPI bus. A byte string, including the JEDEC manufacturer ID, device ID, and any extended device information, is sent back to the microprocessor. The byte string may include one or more continuation codes when the manufacturer ID exceeds 1 byte. The byte string also includes one byte indicating how many bytes of extended device information should be read by the microprocessor. The identification process, issuing the command and receiving the reply, is completed in one operation.

An information processing apparatus includes: a CPU (1201) that has, as an operating mode, a privileged mode and an unprivileged mode; a trusted memory (1270) that stores protected data, the protected data being accessed when the CPU (1201) is in the unprivileged mode; and a trusted memory control unit (1203) that controls access to the trusted memory (1270). When the CPU (1201) accesses the trusted memory (1270), the trusted memory control unit (1203) determines the operating mode of the CPU (1201) and, in the case where the operating mode of the CPU (1201) is the unprivileged mode, denies the access to the trusted memory (1270) by the CPU (1201).

A comparator and variable delay circuit are provided to maintain the tracking between data and echo clocks in a double data rate (DDR)RAM device. This is accomplished by providing a global data signal (dummy data signal) that tracks with the actual memory array data. This global data signal is compared to the timing of the RAM clock (CLOCK) to determine a delay time between the two by which the pipeline clocks (CLKRISE/CLKFALL) must be delayed. As a result, the pipeline clocks are pushed out as needed so that they always transition after the array data arrives at the output latch. Therefore, as cycle time decreases, both echo clocks and data are pushed out identically and maintain their required tracking.