30results about How to "Restoring data" patented technology

With use of a simplified program or calculating device for motion compensation, a video decoding device decodes video data compressed by motion detection operations on macroblock units, as in the MPEG-4AVC standard. The video decoding device splits compressed data blocks of the prescribed size, 16×16 pixels for instance, to generate sub-blocks, which are smaller than the blocks and on which the video decoding device is able to execute motion compensation operations. The video decoding device duplicates a motion vector assigned to a given block to generate as many motion vectors as there are sub-blocks in the given block, and executes motion compensation on each sub-block using the corresponding duplicate motion vector. Data resulting from the motion compensation operation on each sub-block is combined to obtain a target block corresponding to the given block.

It is intended to remove a risk of illegal high quality restoration while enabling trial viewing of contents such as music, to make it possible to reproduce contents with high quality by acquiring a relatively small amount of data, and to make it possible to implement hardware at a lower cost. To generate trial listening data containing dummy data, a pseudo random number R is generated first. A remainder r of R divided by 128 is calculated. The remainder r is coded and incorporated into high sound quality restoration data. A bandwidth limitation region of trial listening data is replaced by dummy data starting from its rth bit. As a result, the head position of the dummy data in the trial listening data varies frame by frame, whereby the safety of the trial listening data can be increased.

An integrated circuit has a sleep switch, provided between a first power line and a second power line, which is constituted by a transistor of a first threshold voltage, and which becomes non-conducting in a sleep mode, and further has a latch circuit, connected to the second power line, which is constituted by a transistor of a second threshold voltage which is lower than the first threshold voltage, and a ferroelectric capacitor for storing data held in the latch circuit in accordance with the polarization direction of a ferroelectric film thereof. The integrated circuit also comprises a control signal generating circuit which, when returning to an active mode from the sleep mode, generates a plate signal for driving a terminal of the ferroelectric capacitor to generate a voltage in the latch circuit in accordance with the polarization direction, and generates a sleep signal for causing the sleep switch to conduct to thereby activate the latch circuit following the driving of the ferroelectric capacitor.

A risk of data garbling due to cumulative impact of disturbances occurring in memory areas in which no rewrite occurs is to be prevented. A memory device has an erasable and writable nonvolatile memory and a control circuit, wherein the control circuit is enabled to perform processing at a prescribed timing to replace memory areas. The replacement processing is accomplished by writing stored data in a first memory area in which rewriting is relatively infrequent into an unused second memory area, and making the second memory area into which the writing has been done a used area in place of the first memory area. Since this replacement processing is intended to replace memory areas in which rewriting is infrequent with other memory areas as described above, it is possible to prevent the risk of data garbling due to the cumulative impact of disturbances occurring in memory areas in which no rewrite occurs.

Signature information, representing important content of the data, is extracted from a first data block and then embedded in a different block. Data hiding techniques are used to minimize perception of the hidden data. Thereafter, if the first data block is lost or damaged during communication, the hidden data is extracted from the other data block and used to reconstruct the lost or damaged block. If desired, the signature information can be used along with information obtained from neighboring blocks adjacent or proximate to the lost or damaged block.

A security device (6) is provided for facilitating management of secret data items such as cryptographic keys which are used by a remote server (2) to authenticate operations of the server (2). The device (6) has a user interface (13), control logic (16) and a computer interface (11) for connecting the device (6) to a local user computer (5) for communication with the remote server (2) via a data communications network (3). The control logic is adapted to establish via the user computer (5) a mutually-authenticated connection for encrypted end-to-end communications between the device (6) and server (2). In a backup operation, the secret data items are received from the server (2) via this connection. The control logic interacts with the user via the user interface (13) to obtain user authorization to backup secret data items and, in response, stores the secret data items in memory (10). To restore secret data items to the server, the control logic interacts with the user via the user interface (13) to obtain user authorization to restore secret data items and, in response, sends the secret data items to the server (2) via said connection.

Restoring a data processing system. Files on one or more storage devices of a data processing system are backed up to magnetic tape recording media. Metadata associated with the backed up files is recorded, including magnetic tape identification and tape location for each backed up file. Files on the one or more storage devices are identified that meet a selection policy for files required for rapid restoration of the data processing system. An index list is generated of the identified files and their associated magnetic tape metadata. The index list is sorted by magnetic tape identification and magnetic tape location. In response to a request to restore the data processing system, the identified files on the sorted index list are restored in magnetic tape identification and magnetic tape location sort order. Operation of the restored data processing system is then begun in accordance with the restored files.

A data processing apparatus for writing data to a recording medium having a predetermined file system configured therein includes the following elements: an insertion portion that removably holds the recording medium, the data processing apparatus writing data to the recording medium inserted in the insertion portion; an insertion / removal detector that detects that the recording medium is inserted in or removed from the insertion portion; a writing state storage unit that stores, when the insertion / removal detector detects removal of the recording medium, a data writing state upon removal of the recording medium; and a restoration / analysis determining unit that determines, when the insertion / removal detector detects insertion of the recording medium, whether it is necessary to perform analysis regarding restoration of the file system configured in the inserted recording medium on the basis of the state stored in the writing state storage unit.

The Disclosed is a method of reading a memory device in a page mode. The method includes the steps of inputting a row address for selecting the word line, enabling a corresponding word line by the row address, and reading / restoring the level of the cell node connected to the enabled word line, and disabling the enabled word line and sequentially enabling bit line sense amplifiers connected to the disabled word line to perform a read operation, wherein the disabling of the selected word line is performed after a lapse of a certain time period as much as data of a first cell node can be restored. Therefore, it is possible to reduce current consumption in a read operation of a page mode.

A system is provided for simultaneously displaying video data of multiple video sources (040, 042) on a display. The system comprises a video input (120) for receiving the video data (122) of the multiple video sources; a display processor (140) for generating display data (142) to display the video data of the multiple video sources in respective viewports (1A-2F) on a display. The display processor is further arranged for, if needed to fit respective ones of the viewports, spatially scaling the video data of one or more of the multiple video sources to obtain said fit; and generating a visual indicator (300-320) for visually indicating whether the video data in one of the viewports has been spatially scaled from its native spatial resolution. By providing the visual indicator as part of the display data, the system may warn the user that the video data in one of the viewports may comprise undesirable artifacts which may hinder interpretation of the video data.

A semiconductor memory device includes a memory core unit including a memory cell array including a plurality of memory cells and a sense amplifier to sense and amplify data of the plurality of memory cells, and a self refresh control unit to apply at least one first core voltage to the memory core unit and to control a self refresh operation to be performed at every first self refresh cycle, in a first self refresh mode, and to apply at least one second core voltage to the memory core unit and to control the self refresh operation to be performed at every second self refresh cycle, in a second self refresh mode. In the semiconductor memory, a level of the at least one first core voltage is higher than that of a corresponding one of the at least one second core voltage, and the first self refresh cycle is shorter than the second self refresh cycle.

A data transmission method adapted to a network system for interconnecting a server with a receiver terminal via the Internet, in which a plurality of frames f(1), f(2), . . . , and f(u) are extracted from streaming contents and are distributed to a plurality of packets p(1), p(2), . . . , and p(u) by interleaving, wherein a plurality of data included in the frame f(u) represented by a matrix of m×n are distributed to a plurality of packets p(u) to p(k+u−1) (where ‘u’ and ‘k’ designate integers), whereby any one of the packets includes first data of each frame, so that it is possible to start reproducing the streaming contents after completely receiving last data of each frame without discarding packets. This noticeably reduces a time lag between the reception start timing and the reproduction start timing.

A redundant code generation method includes: dividing original data into data strings; dividing each data string into a number of bit strings that accords with an extended Galois field operation; storing each of the bit string in a different memory area of a memory; and executing an exclusive OR operation among vectors, which are extracted from the respective bit strings stored in the memory, according to an operational expression to compute bit strings that make up redundant code data strings without carrying out a bit shift operation within the vectors. A predetermined plural number of bits is taken as a data unit and the number of bits as elements constituting each vector is equal to the data unit. The operational expression includes a companion matrix of a primitive polynomial of the Galois field and defined the generation of the redundant code data strings.

A signal processing device includes a system of system of circuit processing in essence while avoiding large sized device under restoring fluctuated signals such as deterioration and the like. The signal processing unit includes a processing unit that restores one of a signal before fluctuation, a signal which should have been intrinsically obtained, and signal data which is approximated from these signals from an initial signal which has fluctuated like deterioration. A fluctuated data region storing fluctuated data and a restored data region storing signal data (restored data) restored every restoring process are installed. The processing unit repeats the following processes in order to produce data formed in the restored data region at the completion of processing as original signal data. The processing unit transfers energy of the fluctuated data from the fluctuated data region to the restored data region using fluctuation-factor information data, which is a fluctuation factor, and produces restored data; and substitutes residual data in the fluctuated data region remained through the data transfer for the fluctuated data.

With use of a simplified program or calculating device for motion compensation, a video decoding device decodes video data compressed by motion detection operations on macroblock units, as in the MPEG-4AVC standard. The video decoding device splits compressed data blocks of the prescribed size, 16×16 pixels for instance, to generate sub-blocks, which are smaller than the blocks and on which the video decoding device is able to execute motion compensation operations. The video decoding device duplicates a motion vector assigned to a given block to generate as many motion vectors as there are sub-blocks in the given block, and executes motion compensation on each sub-block using the corresponding duplicate motion vector. Data resulting from the motion compensation operation on each sub-block is combined to obtain a target block corresponding to the given block.

A semiconductor system includes a semiconductor memory device suitable for storing data, and a host suitable for controlling the semiconductor memory device in response to an external command signal, in which the semiconductor memory device includes a buffer block suitable for storing first data programmed under control of the host, and a main block suitable for storing the second data programmed under control of the host or a copy of the first data stored in the buffer block at a sudden power fail.

A signal processing device, which is more practical for restoring signals, includes a signal processing unit for processing a signal. The processing unit produces restored data that approaches the original signal data before fluctuating (before blurring) by repeating the following processing: generating comparison data Io′ from arbitrary signal data Io by using information data G regarding fluctuation factors that triggers signal fluctuation; comparing the comparison data Io′ with original signal data Img′ as an object to be processed thereafter; producing restored data Io+n by allocating difference data δ to the arbitrary signal data Io while using the information data G regarding fluctuation factors; and substituting the restored data Io+n for the arbitrary signal data Io thereafter.