EP2454653A1 - Procédé d'indication d'une configuration de mémoire - Google Patents

Procédé d'indication d'une configuration de mémoire

Info

Publication number
EP2454653A1
EP2454653A1 EP10737017A EP10737017A EP2454653A1 EP 2454653 A1 EP2454653 A1 EP 2454653A1 EP 10737017 A EP10737017 A EP 10737017A EP 10737017 A EP10737017 A EP 10737017A EP 2454653 A1 EP2454653 A1 EP 2454653A1
Authority
EP
European Patent Office
Prior art keywords
storage medium
terminal
interface
contact
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP10737017A
Other languages
German (de)
English (en)
Inventor
Armin Bartsch
Fabian Guter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2454653A1 publication Critical patent/EP2454653A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0629—Configuration or reconfiguration of storage systems
    • G06F3/0632—Configuration or reconfiguration of storage systems by initialisation or re-initialisation of storage systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G06F3/0605—Improving or facilitating administration, e.g. storage management by facilitating the interaction with a user or administrator
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/062—Securing storage systems
    • G06F3/0622—Securing storage systems in relation to access
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device

Definitions

  • the invention relates to a method for announcing to a terminal, an activated memory configuration of a storage medium operable in the terminal, according to the preamble of claim 1.
  • Storage media in the sense of the invention are used for making available a wide variety of data, for example applications for different fields of use, or even media data such as photos or films.
  • the storage medium is portable and can be designed externally as a flat card or alternatively as a token. ,
  • the storage medium has a storage area (mass storage) and a storage management system, e.g. a memory controller or a system of multiple coupled memory controllers that manage the memory area.
  • the storage management system can also be integrated in the storage area of the storage medium.
  • the data is stored in the memory area.
  • the memory area can be structured in partial memory areas.
  • the memory management system provides a set of commands containing a plurality of predefined commands for performing memory management tasks, such as reading (READ) or writing (WRITE) in memory, opening memory (OPEN), or setting and removing write protection for the memory area.
  • the memory area can be realized in principle in any suitable - preferably electrical - memory technology, in particular as a flash memory, but also as a RAM, ROM or EEPROM.
  • interface standards which the storage medium satisfies.
  • interface standards for storage media are SD (Secure Digital Memory Card), Multi Media Card (MMC), Universal Serial Bus (USB), Small Computer System Interface (SCSI).
  • SD Secure Digital Memory Card
  • MMC Multi Media Card
  • USB Universal Serial Bus
  • SCSI Small Computer System Interface
  • a storage medium is considered partly using the example of the interface standard SD. The same applies to storage media according to other interface standards.
  • SD-Spec Physical Layer Specification
  • the portable storage medium can be read and described by means of a terminal.
  • a terminal for example, a personal computer (PC), a mobile terminal for a mobile network, e.g. a mobile phone, PDA, smart phone, etc., or a set top box for pay-TV.
  • the terminal has an operating system, e.g. a PC operating system or an operating system for mobile devices such as Microsoft Windows, Microsoft Windows Mobile, Linux, Symbian or the like.
  • German patent application 102008053581.8 of the present patent application describes a storage medium with a memory area and a memory management for managing the memory area, in which storage medium different storage configurations of the storage area can be adjusted in a flexible manner and independently of a terminal used to operate the storage medium, in particular Protect data against deletion.
  • the storage medium of 102008053581.8 has a storage area and a storage management system for managing the storage area. With the storage medium different access possibilities of the Buchrei- provided on the storage area.
  • the memory management system includes a configuration command whose execution causes activation of a single one of at least two different activatable memory configurations.
  • the different memory configurations differ in that at least one access command for accessing the memory area is routed to a different partial memory area depending on the activated memory configuration.
  • the storage configuration of the storage medium can be adjusted or changed by selectively activating one of several activatable storage configurations. All at once, only a single memory configuration can be activated. The other memory configurations (one or more) are inactive.
  • the configuration command is called and executed, possibly together with one (or more) parameters (s) indicating which of the memory configurations should be activated.
  • the configuration command is configured and possibly parameterized such that the activatable memory configurations correspond to predetermined wishes and requirements of, for example, the manufacturer or publisher of the storage medium, which offers a high degree of flexibility.
  • the configuration command can be configured such that in one of the activatable memory configurations, physical subareas of the memory area are completely hidden, ie are not addressable, and / or are hidden for writing, and thus protected from being erased.
  • the configuration command is implemented in the storage medium itself, the different storage configurations can be set independently of a terminal used to operate the storage medium. Conventionally, by setting and clearing write protect bits for the entire memory area of a memory medium or for partial memory areas of the memory area, different memory configurations can be set.
  • the terminal To operate a storage medium in a terminal, the terminal relies on knowing certain information of the storage medium, in particular e.g. Information about a set write protection bit of the memory area, or possibly the currently activated memory configuration.
  • information of the storage medium in particular e.g. Information about a set write protection bit of the memory area, or possibly the currently activated memory configuration.
  • the information relating to the storage medium is determined by the terminal which the terminal requires to operate the storage medium. The determination of the information takes place both at a first plugging in as well as at a removal and subsequent reinsertion of the storage medium.
  • EP 1 100018 A2 describes a method for simulating the reinsertion of a USB device.
  • the voltage level of a signal line in the USB device is changed so that the host terminal to which the USB device is electrically connected assumes unplugging and reinserting the USB device, even though the USB device is not physically physically from the host Computer was disconnected.
  • a storage medium according to the invention in 102008053581.8 is due to a physical insertion of the storage medium into the terminal, the currently activated memory configuration of the plurality of activatable memory configurations determined by the terminal.
  • the invention of the present patent application is based on the object of specifying a convenient method for enabling a terminal to determine an activated memory configuration of a storage medium operable in the terminal and to switch between a plurality of memory configurations in the storage medium.
  • the inventive method according to claim 1 is provided to enable a terminal to determine an activated memory configuration of a storage medium operable in the terminal.
  • the storage medium has a storage area and an interface for communicating the storage medium with the terminal.
  • the enabled memory configuration defines properties of the memory area.
  • the storage medium is held or brought into contact with the terminal by means of the interface, so that there is contact between the storage medium and the terminal at the interface, so that a communication between the storage medium and the terminal is possible via the interface.
  • the method is characterized in that an interruption and subsequent restoration of the contact present at the interface between the storage medium and the terminal is simulated-at least partially-on the occasion of simulating the restoration or interruption of the contact, the terminal being initiated to determine the activated memory configuration of the storage medium.
  • the simulation of the interruption or reestablishment has an effect - at least in part - on the contact at the interface between the terminal and the storage medium, such as a physical removal of the storage medium from the terminal or the reinsertion of the storage medium into the terminal.
  • the terminal is caused to detect the activated storage configuration of the storage medium as the terminal would conventionally do so upon a physical removal of the storage medium. A cumbersome actual physical removal and reinserting the storage medium is not required.
  • a convenient method for enabling a terminal to determine an activated memory configuration of a storage medium operable in the terminal.
  • the terminal determines the activated storage configuration of the storage medium, e.g. in a known manner.
  • the storage medium is designed, for example, as an SD storage medium according to the SD Spec.
  • the storage medium further comprises a controller coupled between the interface and the storage area, and wherein simulating the interrupting and restoring of the contact between the storage medium and the terminal is performed by the controller.
  • the control device or a part thereof is designed, for example, as a card interface controller according to the SD Spec.
  • the interface has at least one or more lines coupled to the control device, which can be acted upon by signals for communication between the storage medium and the terminal. Interrupting and subsequently restoring the contact present at the interface between the storage medium and the terminal is optionally simulated by at least one or more lines of the interface being acted upon by the control device with such signals with which the one or more lines are actually disconnected or restoring the contact.
  • At least one or more lines of the interface are acted upon by such signals, which are applied to the one or more lines during an actual interruption or restoration of the contact, that the one or more lines are decoupled by the control device from the control device and is again coupled to the controller.
  • the interface has a supply line as a line and / or the supply line is / are decoupled by the control device from the control device and coupled again to the control device.
  • At least one or more lines of the interface thereby become involved. such signals applied to the one or more lines during an actual break or recovery of the contact, that the one or more lines by the control device is charged with an error message, as the control device this on the occasion of an actual Interrupting or restoring the contact would.
  • the interface has a command line as a line, and the command line is supplied with the error message.
  • the removal or reinsertion is simulated by the fact that the storage medium for a certain period of time, ie a period of time relative to the clock frequency with which the storage medium or the terminal is operated, to certain signals and / or commands of the terminal no longer or in others Way reacts. In other words, simulating the interrupting and restoring of the contact between the storage medium (10) and the terminal is achieved by unanswered or incorrectly responding to a request and / or command from the terminal to the storage medium from the storage medium.
  • the storage medium has multiple, at least two, activatable storage configurations, one of which may be activated at a time, with the storage configuration that is enabled being the enabled storage configuration, and further activating a storage configuration of the storage medium, so that the activated storage configuration is set on the storage medium.
  • the interruption and subsequent restoration of the contact is simulated.
  • the interruption and subsequent restoration of the contact is simulated after enabling the memory configuration has been carried out. At a time when the terminal detects the enabled memory configuration, this is already the correct memory configuration, not an old memory configuration previously set (enabled).
  • At least interrupting the contact - or interrupting and subsequently restoring the contact - is simulated a sufficiently short time before activating the memory configuration that at a time when the terminal is caused to detect the activated storage configuration of the storage medium, or when the terminal detects the activated memory configuration, the storage medium is in the activated memory configuration ready to be communicated to the terminal.
  • the memory configuration is activated shortly after the simulated interruption and / or restoration of the contact, in particular changed.
  • this is the correct memory configuration, rather than an old memory configuration that was previously set (enabled) as the above mentioned. Time span is chosen sufficiently short.
  • Fig. 1 is a storage medium, with which the inventive method
  • Fig. 1 shows a storage medium 10, with which the inventive method is feasible.
  • the storage medium 10 comprises: a storage area 11, an interface 12 with a plurality (here nine) lines L, which in several (here nine) contact terminals for contacting with a terminal open, as well as a coupled between the memory area 11 and the interface 12 control device (controller) 13.
  • At least some of the lines L can be decoupled by the control device 13 of the control device 13 (in Fig. 1 indicated by a switch symbol in one of the lines).
  • the control device 13 For a coupled to the interface 12 terminal created by the decoupled state of the impression that the storage medium 10 would have been removed from the terminal.
  • At least some of the lines L can be acted upon by the control device 13 with error messages, although there is no conventional cause for an error message.
  • the error message gives the impression that the storage medium 10 has been removed from the terminal. In both cases, the terminal is provoked to determine the storage configuration of the storage medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

L'invention concerne un procédé destiné à permettre à un terminal de déterminer une configuration de mémoire active d'un support de mémoire pouvant être exploité dans un terminal. A cet effet, une interruption et un réétablissement d'un contact établi sur une interface du support de mémoire, entre le support de mémoire et le terminal, sont simulés au moins partiellement. Lors de la simulation du réétablissement ou de l'interruption du contact, le terminal est amené à déterminer la configuration de mémoire activée du support de mémoire.
EP10737017A 2009-07-16 2010-07-15 Procédé d'indication d'une configuration de mémoire Ceased EP2454653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009033360A DE102009033360A1 (de) 2009-07-16 2009-07-16 Verfahren zum Bekanntgeben einer Speicherkonfiguration
PCT/EP2010/060223 WO2011006968A1 (fr) 2009-07-16 2010-07-15 Procédé d'indication d'une configuration de mémoire

Publications (1)

Publication Number Publication Date
EP2454653A1 true EP2454653A1 (fr) 2012-05-23

Family

ID=42778108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10737017A Ceased EP2454653A1 (fr) 2009-07-16 2010-07-15 Procédé d'indication d'une configuration de mémoire

Country Status (6)

Country Link
US (1) US9104322B2 (fr)
EP (1) EP2454653A1 (fr)
KR (1) KR101432398B1 (fr)
CN (1) CN102473077B (fr)
DE (1) DE102009033360A1 (fr)
WO (1) WO2011006968A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2930663B1 (fr) * 2014-04-11 2020-07-01 Nxp B.V. Puce à circuit électronique destinée à une étiquette RFID avec une fonctionnalité de lecture seule

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EP0992000A1 (fr) * 1997-07-02 2000-04-12 Cypress Semiconductor Corporation Systeme d'interface de bus et procede
EP1002275A1 (fr) * 1997-08-12 2000-05-24 Atmel Corporation Unite de commande de bus seriel universel
WO2001048613A2 (fr) * 1999-12-24 2001-07-05 Koninklijke Philips Electronics N.V. Emulation de deconnexion d'un dispositif
US6738834B1 (en) * 2002-07-15 2004-05-18 Cypress Microsystems System for reconfiguring a peripheral device using configuration residing on the peripheral device by electronically simulating a physical disconnection and reconnection to a host device
DE102007050463A1 (de) * 2006-11-16 2008-05-21 Giesecke & Devrient Gmbh Verfahren zum Zugriff auf einen tragbaren Speicherdatenträger mit Zusatzmodul und tragbarer Speicherdatenträger
WO2009022388A1 (fr) * 2007-08-10 2009-02-19 Panasonic Corporation Support amovible, dispositif, système, procédé et programme de formatage
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Also Published As

Publication number Publication date
DE102009033360A1 (de) 2011-01-20
US20120117279A1 (en) 2012-05-10
US9104322B2 (en) 2015-08-11
KR101432398B1 (ko) 2014-08-20
KR20120048617A (ko) 2012-05-15
WO2011006968A1 (fr) 2011-01-20
CN102473077A (zh) 2012-05-23
CN102473077B (zh) 2015-04-01

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