摘要:
In a method for providing copy-protection services on a storage medium (for instance a solid state memory module), the data are arranged in sectors to which a field (S4T) is associated, where said field contains a random value Ri which is changed randomly when writing data to said sector. By encrypting the data stored on the medium using a key which depends critically on said random numbers, bit-by-bit copies (apart from said random numbers, which can not be deterministically changed by an application) to a second storage medium or recopies from some intermediate storage medium, can not be decrypted because the values of said random numbers will have changed, thus preventing unauthorized duplication and replay attacks.
摘要:
In order to provide a content managing module (100, 102) as well as a method for controlling interactive applications, wherein a first data stream (D1) comprising at least one first interactive application with first interactive content is received, the first data stream (D1) being transmitted on at least one first channel, wherein it is possible to prevent a lack of interactive content stream when a consumer or user changes channel (and somewhat later changes back) while watching interactive content, it is proposed to keep receiving the first interactive content when switching (s) from the first channel to at least one second channel on which a second data stream (D2), in particular comprising at least one second interactive application with second interactive content, is transmitted.
摘要:
The present invention relates to a write controller for a memory with a plurality of non-volatile storage cells, a read controller for a memory with a plurality of nonvolatile storage cells, to a combined write/read controller, to a solid state device comprising a memory with a plurality of non-volatile storage cells, a programmer device for writing a binary code to a non-volatile memory, to a method for writing data comprising at least one input bit to a memory having non-volatile storage cells, and to a method for controlling the integrity of data comprising at least one input bit stored in non-volatile storage cells of a memory. The basic concept of the present invention is to extend information stored in a non-volatile memory by at least one checking bit. The checking bit is allocated to one code bit, or to each of a plurality of code bits.
摘要:
There is provided a method of increasing boot-up speed in a computer system (10). The system (10) includes computing devices (20) for processing data and a data store (60) coupled thereto for providing data to and receiving data from the devices (20). The store (60) is operable to write and/or read data in several regions (T1, T2, T3) of a data medium (200). Access between the regions is subject to associated jump delays (SK1/2, SK2/3; SK1/3, SL3/2). The store (60) includes a cache (320) for temporarily storing data read from and/or for writing data to the medium (200). On initial boot-up of the system (20), a log is made of a sequence in which the regions (T1, T2, T3) are accessed. Moreover, on subsequent boot-up of the system (10), the log is used to store data read from the medium (200) temporarily in the cache (310, 320) so as to provide for a more temporally efficient sequence of accessing the regions (T1, T2, T3) for speeding up said subsequent boot-up.
摘要:
A universal memory device is presented that provides adaptability to existing hardware and software environments. The memory can “mimic” existing memory technology combining the advantages of integration all memory capacity in to one single technology and still providing the implicit protections and access characteristics known from the different existing memory technologies. The memory device comprises a memory having a plurality of low-latency, rewritable, non-volatile memory cells forming at least one memory section, a profile storage unit connected with said memory and comprising access information allocated to at least one set of request information elements (r: quest profile), such that said access information indicates whether a request for access to said memory (access request), said access request having said request profile, is to be allowed or rejected, and an access control unit communicating with said profile storage unit and said memory, and adapted to allow or reject an incoming access request in dependence on the access information allocated to the request profile of the access request.
摘要:
In a method for providing copy-protection services on a storage medium (for instance a solid state memory module), the data are arranged in sectors to which a field (S4T) is associated, where said field contains a random value Ri which is changed randomly when writing data to said sector. By encrypting the data stored on the medium using a key which depends critically on said random numbers, bit-by-bit copies (apart from said random numbers, which can not be deterministically changed by an application) to a second storage medium or recopies from some intermediate storage medium, can not be decrypted because the values of said random numbers will have changed, thus preventing unauthorized duplication and replay attacks.
摘要:
When booting a personal computer, it needs to find instructions immediately to tell it what to run to start up the personal computer. These it finds within the so-called basic input/output system (BIOS) program. Usually the BIOS program is stored in a separate location, for example a ROM. It is usually shadowed into system memory (SM) to speed up its operation. The copying of the BIOS program to system memory (SM), amongst others, causes the boot process to be a relatively slow process. In the present invention, the system memory (SM) comprises a persistent system memory (PSM) and the BIOS program is stored in the persistent system memory (PSM). Furthermore, selected information used by the BIOS program is stored in persistent system memory (PSM) as well. As a result, the speed of booting the personal computer is significantly increased.
摘要:
The present invention relates to a method for managing memory space of a persistent-memory device and to a memory management device. The memory management method of the invention comprises a step of allocating (S14) at least one first part of said memory space to a file system (74) upon request from said file system (74) or from an application (70). The method and the device of the present invention enable a dynamical allocation of persistent-memory space to a file system. This way, the memory space of a persistent memory is effectively used also for write-caching. At the same time, write-caching and storing steps can be accelerated.
摘要:
A method for breathing of scheduling algorithms for a storage device (110). The method including: (a) computing a worst-case duration of a breathing cycle (P) for the storage device (110); (b) starting a breathing cycle; (c) determining if one of the following becomes true before the end of P: (i) a number of real-time requests is at least a predetermined threshold based on a number of data streams and performance parameters of the storage device; and (ii) a number of pending requests for any single stream becomes more than one; (d) if at least one of (i) and (ii) remain true during the duration of P, starting a subsequent breathing cycle after completion of the breathing cycle; and (e) if both of (i) and (ii) are not true during the duration of P, waiting P time units from the start of the breathing cycle before starting the subsequent breathing cycle.
摘要:
In a file system and in particular in a real-time file system it might not be possible to write a data to disc completely. Nevertheless the data that has been written to disc is often still useful, for example in case of an MPEG-stream. Marking parts of the file defective in the file system providing meta-data enables an application to perform application specific error correction or error concealment By using a filter driver, the file system can be extended with this error handling, thus making this functionality available to every application.