619 results about "Data capacity" patented technology

A method and apparatus for efficiently managing the allocation of available data capacity on a physically shared digital network among devices connected to that network is disclosed. Also disclosed is a method and apparatus for managing the ongoing timely movement of data on the shared network such that precise long-term data rates are achieved between attached devices with minimal additional buffering. The invention further comprises a method and apparatus which allows the use of any remaining network capacity for non time-critical data movement without the need for centralized access management.

Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.

Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.

A system for data backup includes a storage device, a backup storage device, and an intermediate storage device. Backup procedure is performed on-line and copies data blocks from the storage device into the backup storage device. When a write command is directed to a data storage block identified for backup that has not yet been backed up, the identified data storage block is copied from the storage device to the intermediate storage device, the write command is executed on the identified data storage block from the storage device, and the data storage block is copied from the intermediate storage device to the backup storage device. In case of an error accessing a block on the storage device, the block is marked as invalid. The intermediate storage device can be external to a file system of a computer that includes the storage device, or can be located in the storage device, or can be a separate partition of the storage device, or can be a file within a file system. The system suspends a write command to the storage device during the data backup process if the intermediate storage device has reached a selected data capacity; and copies a selected amount of data from the intermediate storage device to the backup storage device.

A method and apparatus for emulating a magnetic tape storage device with a conventional, unmodified magnetic disk storage device. I/O output requests for the emulated magnetic tape storage device are intercepted to determine whether they involve a virtual tape resource that comprises a magnetic disk storage device. Tape requests to such a resource are converted into one or more conventional magnetic disk storage requests to effect an analogous operation. The size of the virtual tape resource can be reduced below the normal data capacity for the emulated tape storage device.

Differential modulation schemes encode a data channel within host signal or noisy environment in a manner that is robust, flexible to achieve perceptual quality constraints, and provides improved data capacity. Differential arrangements enable a decoder to suppress host signal or other background signal interference when detecting, synchronizing and extracting an encoded data channel. They also enable the incorporation of implicit or explicit synchronization components, which are either formed from the data signal or are complementary to it.

Sparse signal modulation schemes encode a data channel on a host image in a manner that is robust, flexible to achieve perceptual quality constraints, and provides improved data capacity. The host image is printed by any of a variety of means to apply the image, with sparse signal, to an object. After image capture of the object, a decoder processes the captured image to detect and extract data modulated into the sparse signal. The sparse signal may incorporate implicit or explicit synchronization components, which are either formed from the data signal or are complementary to it.

The free region of a capacity pool is managed in a capacity pool structure management table stored in a memory, and if a capacity of a storage region that is to be assigned newly to a virtual volume by a processor is equal to or greater than a capacity of a free region of the capacity pool, or if the capacity of the free region of the capacity pool after assignment of a storage region to a virtual volume is less than a prescribed threshold value, then the data of at least any one virtual volume in the capacity pool, is migrated to another storage module, and the storage region of a HDD that was assigned to the virtual volume in question is added to the free capacity of the capacity pool, as a free region.

Continuous data protection is performed as two parallel processes: copying a data block from the storage device into the backup storage device (creating initial backup) and copying the data block to be written to the data storage into the incremental backup. When a write command is directed to a data storage block, it's intercepted and redirected to the backup storage, and data, which is to be written in accord to the write request, is written to the incremental backup on the backup storage. If write command is also directed to a data storage block identified for backup that has not yet been backed up, the identified data storage block is copied from the storage device to the intermediate storage device, the write command is executed on the identified data storage block from the storage device, and the data storage block is copied from the intermediate storage device to the backup storage device. In case of an error accessing a block on the storage device, the block is marked as invalid. The system suspends a write command to the storage device during the initial data backup process if the intermediate storage device has reached a selected data capacity; and copies a selected amount of data from the intermediate storage device to the backup storage device.

The number of users and data capacity of wireless systems are increased by employing apparatus and method for increasing the number of spreading codes available in the system by providing a mechanism to reuse the already allocated spreading code or use the codes that may correlate to those already being used within the same sector/cell. This, in return, provides capacity improvement proportional to the number of added base station (BS) antennas for each cell. An antenna null steering technique for code allocation maintains the cross correlation properties of the codes only for the desired user and to obtain a gain in capacity improvement.

The invention provides a data storage method and a data storage device. The method comprises the following steps of: obtaining data to be stored into a solid-state hard disk from a memory; caching the data into a magnetic hard disk in a data structure being a log structure merging tree; executing a merging operation on the data cached in the magnetic hard disk; and when the volume of the data cached in the magnetic hard disk reaches the preset volume, storing the merged data into the solid-state hard disk. By using the method or the device provided by the invention, the write amplification problem generated during the updating of small-particle-size data can be solved; and the service life of the solid-state hard disk is prolonged.

A wireless communication apparatus is capable of increasing data capacity that can be transmitted and reducing power consumption by reducing the amount of control signal to be transmitted, and capable of increasing system capacity by reducing interference with respect to other wireless communication apparatuses.

In this apparatus, control information extraction section (105) extracts information indicating the number of CQI's contained in control information.

Reception quality measuring sections (113-1 to 113-n) measure reception quality of each sub-carrier within a communication band.

CQI generating section (114) generates CQI's for some of the sub-carriers of superior reception quality within the communication band.

Multiplexer (122) multiplexes CQI's, sub-carrier number information generating the CQI's, and ACK signals or NACK signals.

The SC selecting section (127) then selects the number of sub-carriers from a base station apparatus of superior reception quality allocated using the CQI quantity designation information.

An encoding data processing apparatus is operable to introduce a visible watermark into a compression encoded video image represented by a compression encoded bit stream having a predetermined format. The format of the compression encoded bit stream provides image frames, which are represented by macroblocks, each macroblock representing a block of pixels from the image frame. The macroblocks are formed into groups of macroblocks which are contained in fixed portions of the compression encoded bit stream, the fixed data portions being able to accommodate a predetermined fixed amount of data. The encoding data processing apparatus being operable to parse the compression encoded bit stream to identify spare data capacity in each frame provided from each of the fixed data portions as a result of the fixed data portion not being completely filled with the macroblocks. The encoding data processing apparatus is operable to determine whether an additional amount of data required to represent the visible watermark can be accommodated in each image frame. If the additional data can be accommodated, the encoding data processing apparatus is operable to change selected macroblocks in the image frame to represent the visible watermark, to generate a bit pattern representing the macroblocks in the original image frame which have changed, and to insert the additional data into the fixed data portions of the image frame. A visibly watermarked bit stream can therefore be produced in which the watermark changes on a frame by frame basis, if the frames can accommodate the data required to represent the watermark. In one example the visible watermark represents a time code.

There is provide a technique which can contribute to reduction of data capacity of image data read from an original document in an image reading apparatus, and can contribute to realization of a flexible image processing to meet user's requests. There are included a first image reading unit to read an image in monochrome from an original document at a first resolution, a second image reading unit to read an image in color from an original document at a second resolution lower than the first resolution, a position information acquisition unit to acquire position information indicating, in respective image data read by the first and the second image reading units from the same original document, corresponding positions of respective pixels on the original document, a color information acquisition unit to acquire color information indicating colors of the respective pixels in the respective image data, and a storage unit to associate the position information acquired by the position information acquisition unit with the color information acquired by the color information acquisition unit with respect to the pixel corresponding to the position information and to store them in a specified storage area.

Data capacity efficiency is improved by de-duplicating data assigned with a code that is different for each data.

A storage apparatus comprising a flash memory control device equipped with one or more flash memory modules, wherein the flash memory module comprises at least one flash memory chip for providing a storage area, and a controller for controlling writing/reading of data including user data and a guarantee code accompanying the user data to and from the storage area provided by the flash memory chip, wherein the controller respectively divides a plurality of the data having the common user data into the user data and the guarantee code, stores one of the user data in an area of a predetermined unit of the storage area, and links and stores each of the guarantee codes accompanying the plurality of user data in an area of a predetermined unit of the storage area.

The invention discloses a vehicle network integration technology-based electric vehicle charging system and an implementation method thereof. The electric vehicle charging system comprises an electric vehicle network mobile computing terminal, which establishes a connection with an intelligent electric network via a power line carrier modulation and demodulation module, is connected with a cloud computing remote service platform, and uploads vehicle information of electric vehicles to the cloud computing remote service platform; the cloud computing remote service platform transmits charging information to positioning practicable charging station information and the electric vehicle network mobile computing terminal; electric vehicles are in information interaction via vehicle-mounted electric vehicle mobile computing terminals; and a microwave power transmission device is arranged in a charging station. The implementation of the invention is based on an electric vehicle technology integrating a vehicle intranet and a vehicle outer net; the vehicle intranet is large in information transmission capacity, is communicated with transport facilities via the wireless communication manner of a power line carrier; and the real-time performance of communication on the premises of multiple networks and larger data capacity is ensured.

The invention discloses a data backup method based on an Erasure coding and copying technology. When data to be stored exceed the maximum capacity of a storage source, the data are stored in a distributed way after being divided so as to improve the storage efficiency. Meanwhile, check codes of divided data subblocks are calculated and stored, and the damaged data subblocks are restored by utilizing an Erasure code under the condition that partial data subblocks are damaged, thereby ensuring the integrality of original data. The original data are backed up by a copying method, and meanwhile, the amount of generated data copies is confirmed according to parameters such as the amount of storage servers, and the like. Finally, the metadata information of the generated data copies is stored in a copy database so that a user can restore the original data through inquiring the copy database and utilizing the data copies when a data disaster happens. a data dividing and copy creating technology is used for better solving the problem of data backup in a data capacity disaster, thereby not only improving the storage efficiency of the data, but also ensuring the integrality of the data.