WO2004052037A2 - Procede d'optimisation de la duree de lecture d'une carte de memoire morte et circuit correspondant - Google Patents

Procede d'optimisation de la duree de lecture d'une carte de memoire morte et circuit correspondant Download PDF

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Publication number
WO2004052037A2
WO2004052037A2 PCT/DE2003/003807 DE0303807W WO2004052037A2 WO 2004052037 A2 WO2004052037 A2 WO 2004052037A2 DE 0303807 W DE0303807 W DE 0303807W WO 2004052037 A2 WO2004052037 A2 WO 2004052037A2
Authority
WO
WIPO (PCT)
Prior art keywords
communication terminal
memory card
mobile communication
card
read
Prior art date
Application number
PCT/DE2003/003807
Other languages
German (de)
English (en)
Other versions
WO2004052037A3 (fr
Inventor
Jörg Bittermann
Laurenz PRÜßNER
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2004052037A2 publication Critical patent/WO2004052037A2/fr
Publication of WO2004052037A3 publication Critical patent/WO2004052037A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier

Definitions

  • the present invention relates to a method for optimizing the readout time of information stored on a read-only memory card in a mobile communication terminal. Furthermore, the present invention comprises a suitable circuit arrangement and a corresponding communication terminal.
  • SIM cards Subscriber Identity Module
  • a SIM card is located in a specially designed card reader, a SIM card reader, of the corresponding communication terminal.
  • Telephone books or short messages so-called SMS (Short Message Service) are stored or stored as information on the fixed memory cards. Reading the phone books in a GSM communication terminal takes a very long time after the GSM communication terminal is switched on, since the GSM communication terminal has to operate the interface to the fixed memory card serially and at a low clock rate. The latter can be explained by the fact that SIM memory cards may not be subjected to excessive mechanical stress due to the large number of plug and pull cycles, and accordingly the circuit contact is made by weak contact springs.
  • a method for optimizing the readout time of information stored on a read-only memory card is provided in a mobile communication terminal, in which when the mobile communication terminal is switched on for the first time, the information stored on the read-only memory card is read out and stored in a storage element of the mobile communication terminal, when the information read from the fixed memory card and stored in a storage element of the mobile communication terminal is queried for the corresponding storage element of the mobile communication device, is accessed as long as the fixed memory card is not replaced, - when the fixed memory card is replaced, the information stored on the fixed memory card is read out again.
  • a replacement of the fixed memory card is preferably determined by means of a binary memory unit.
  • an RS flip-flop can be used, which is directly coupled to a card reader of the communication terminal.
  • the RS flip-flop can be used to identify whether a fixed memory card has been removed from the card reader unit and reinserted, i.e. whether the memory card has been replaced. This check can preferably also be carried out when the communication terminal is switched off. When the communication terminal is started, it is checked according to the invention whether the removal of the fixed memory card has taken place or can be safely excluded.
  • the very slow memory of the fixed memory card does not have to be read out again, since according to the invention the information stored on the fixed memory card is read out for the first time in the communication terminal and stored in a storage element of the mobile communication terminal.
  • the memory element of the mobile communication terminal is then accessed, which takes place much faster than the renewed access to the read-only memory card.
  • Accelerating is determined by determining whether a change in the fixed memory card can be safely ruled out the switch-on cycle from about 30 seconds to about 5 seconds.
  • the method according to the invention is both on GSM fixed memory cards, the already mentioned GSM SIM cards, and on all removable memory cards which are addressed via a serial interface, that is to say also for so-called UMTS SIM cards and memory cards, such as those in MP3 -Player or digital cameras are used, applicable. Furthermore, the method according to the invention can also be used with parallel interfaces, such as, for example, Centronics.
  • a contact is provided within a card reading unit of the mobile communication terminal, which contact is in an open or closed state depending on the presence of a fixed memory card.
  • the binary storage unit or the RS flip-flop is connected to the card reader unit in such a way that when the state of the card reader unit changes, the binary memory unit or the RS flip-flop switches.
  • the S input of the RS flip-flop is preferably coupled to or connected to the card reader unit. When the contact closes, the S input of the RS flip-flop is set to a different, preferably higher potential, so that the RS flip-flop is set. This means, for example, that when the permanent memory card is inserted, the contact in the card reader is open.
  • the contact is closed as soon as the fixed memory card is removed from the card reader.
  • the S input of the RS flip-flop then changes from an L level, where L stands for "low”, to an H level, where H stands for "high”.
  • the RS flip-flop is thereby puts.
  • the RS flip-flop could also work with a negative logic, which means that the RS flip-flop is not set by an H level but an L level.
  • the logic level or the voltage changes at the output Q of the RS flip-flop. This voltage change is forwarded within the mobile communication terminal, so that it can be recognized that the fixed memory card has been removed and must now be read out again. If the voltage at the Q output does not change, the read-only memory card is not read out again, but the information is taken from the memory unit in which the information was stored when the read-out memory card was read out for the first time.
  • the mobile communication terminal when the mobile communication terminal is switched off, the information read from the fixed memory card and stored in a first memory unit of the mobile communication terminal is copied to a second memory unit.
  • the information copied into the second storage unit is then copied back into the first storage unit if the fixed memory card has not been replaced.
  • the first storage unit is referred to as a so-called random access memory.
  • a so-called flash memory is preferably used in the second memory unit.
  • the mobile communication terminal is switched off, the information or data stored in the RAM is permanently stored in the flash memory.
  • the data from the flash memory is copied back into the RAM and queried from there.
  • a GSM device is preferably used as the mobile communication terminal.
  • the fixed memory card is preferably a SIM card.
  • Telephone books and / or short messages are particularly preferably read out as information.
  • the short messages are the so-called SMS (Short Message Service) that have been received and / or sent by the mobile communication terminal.
  • the present invention comprises a circuit for optimizing the readout time of information stored on a read-only memory card in a mobile communication terminal, the circuit comprising at least the following elements: a binary storage unit, a card reader connected to the binary storage unit for reading information stored on a read-only memory card , - A voltage source supplying the binary storage unit, wherein a contact arranged in the card reader unit is in an open or a closed state depending on the presence of a fixed memory card in the card reader unit and the card reader unit is connected to the binary memory unit in such a way that in one state - change of contact switches the binary storage element.
  • the binary storage unit is preferably an RS flip-flop.
  • a mobile communication terminal in which a circuit according to the invention is integrated , wherein the mobile communication terminal further comprises at least the following components: a control unit connected to the binary storage unit, - a first storage element connected to the control unit for temporarily storing information read from a fixed memory card, a second storage element connected to the control unit for permanently storing off information read out on a non-volatile memory card.
  • FIG. 1 shows a schematic representation of an embodiment of a circuit according to the invention integrated in a mobile communication terminal according to the invention
  • FIG. 2 shows a schematic representation of a further embodiment of a circuit according to the invention integrated in a mobile communication terminal according to the invention.
  • FIG 1 an embodiment of a circuit according to the invention is shown schematically.
  • an RS flip-flop 2 with an R and S input and a Q output with an H pulse at the R input is reset. This means that the Q output changes from an H level to an L level.
  • This reset or H pulse is within a microcontroller, more precisely one
  • GSM baseband controller 4 is generated from a port P2.
  • a port is to be understood as an input or output pin in a microcontroller.
  • FER A card reader unit 1 is provided for reading out a fixed memory card, in particular a SIM card.
  • a contact 10 is arranged within the card reader 1. The contact 10 is closed as soon as the SIM card is removed from the card reader 1.
  • the S input of the RS flip-flop 2 is then set to an H potential.
  • the H potential corresponds to the voltage of a battery 7 connected to the card reading unit 1.
  • the RS flip-flop 2 is supplied via a diode 8, the diode 8 preventing a capacitor 9 from being discharged via the battery voltage path if the battery 7 is disconnected becomes.
  • a voltage of approximately 0-0.7 V drops across the diode 8. There is therefore a somewhat lower H potential at the Q output and at an output / Q negated to the Q output.
  • the RS flip-flop 2 is thereby set. Output Q changes the logic level from low to high.
  • the voltage at the output Q of the RS flip-flop 2 is adapted, for example, to a permissible input voltage of the GSM baseband controller 4 using a level converter or converter 3.
  • the GSM baseband controller 4 When switching on for the first time, for example, telephone books and possibly short messages, so-called SMS, which are stored on the SIM card, are read out of the SIM card by the GSM baseband controller 4 via a SIM interface.
  • the GSM baseband controller 4 then stores this data in a first storage unit 6, namely a RAM.
  • the data is then available with a significantly shorter access time.
  • a second memory unit 5, namely a so-called flash memory, is also connected to the GSM baseband controller 4.
  • the GSM baseband controller 4, the RAM 6 and the flash memory 5 are connected to one another via an address and data bus. As long as the mobile le communication terminal is switched on and the SIM card is not changed, the GSM baseband controller 4 accesses the copies of the SIM phone books or the SMS in RAM 6.
  • the SIM phone books and / or the SMS are read in again via the SIM interface and stored again in the RAM 6.
  • the data from the RAM 6 are permanently stored in the flash memory 5.
  • the data is copied from the flash memory 5 into the RAM 6 if the SIM card has not been changed in the meantime. If the SIM card has been changed, the data are read out again by the GSM baseband controller 4 via the SIM interface and stored in the RAM 6.
  • the RS flip-flop 2 is then reset with another H pulse at the R input.
  • the RS flip-flop 2 When a supply voltage supplied, for example, by a battery 7 is disconnected, the RS flip-flop 2 is still supplied by a capacitor 9 for some time. The time bridged is predetermined by the capacitance of the capacitor 9 used. A diode 8 prevents the capacitor from being discharged via the supply line to the battery 7.
  • FIG. 2 schematically shows a further embodiment of a circuit according to the invention integrated in a mobile communication terminal.
  • the functional structure is identical to the structure shown in FIG. 1.
  • the RS flip-flop 2 and the level converter or converter 3 which may be required are integrated into the GSM baseband controller 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

La présente invention concerne un procédé d'optimisation de la durée de lecture d'informations enregistrées sur une carte de mémoire morte dans un terminal de communication mobile. Ledit procédé consiste à lire les informations enregistrées sur la carte de mémoire morte lors de la première mise en marche du terminal de communication mobile, et à enregistrer celles-ci dans un élément mémoire du terminal de communication mobile ; à accéder à l'élément mémoire correspondant du terminal de communication mobile lors d'une interrogation des informations lues par la carte de mémoire morte et enregistrées dans un élément mémoire du terminal de communication mobile, jusqu'à ce que la carte de mémoire morte soit échangée ; et, à relire à nouveau les informations enregistrées sur la carte de mémoire morte lorsque la carte de mémoire morte à été échangée. L'invention concerne également un circuit correspondant et un terminal de communication mobile.
PCT/DE2003/003807 2002-12-02 2003-11-13 Procede d'optimisation de la duree de lecture d'une carte de memoire morte et circuit correspondant WO2004052037A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10257163.5 2002-12-02
DE2002157163 DE10257163A1 (de) 2002-12-02 2002-12-02 Verfahren zur Optimierung der Auslesezeit einer Festspeicherkarte und entsprechende Schaltung

Publications (2)

Publication Number Publication Date
WO2004052037A2 true WO2004052037A2 (fr) 2004-06-17
WO2004052037A3 WO2004052037A3 (fr) 2005-04-14

Family

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PCT/DE2003/003807 WO2004052037A2 (fr) 2002-12-02 2003-11-13 Procede d'optimisation de la duree de lecture d'une carte de memoire morte et circuit correspondant

Country Status (2)

Country Link
DE (1) DE10257163A1 (fr)
WO (1) WO2004052037A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992078A2 (fr) * 2006-02-28 2008-11-19 Palm, Inc. Techniques de gestion d'une information de contact pour un module d'identité d'abonné

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621768A1 (de) * 1996-05-30 1997-12-11 Siemens Ag Telefon mit Aufnahmevorrichtung für eine Telefonspeicherkarte und Verfahren zum Übertragen von Daten einer Telefonspeicherkarte
US5895471A (en) * 1997-07-11 1999-04-20 Unwired Planet, Inc. Providing a directory of frequently used hyperlinks on a remote server
DE19917169A1 (de) * 1999-04-16 2000-11-02 Kamecke Keller Orla Verfahren zur Speicherung und Wiedergabe von Audio-, Video- und Anwendungsprogrammdaten in Mobilfunkendgeräten
US20020120857A1 (en) * 2001-02-27 2002-08-29 Chidambaram Krishnan Subscriber identity module verification during power management
WO2002073992A1 (fr) * 2001-03-14 2002-09-19 Telefonaktiebolaget Lm Ericsson (Publ) Systeme et procede permettant de mettre a jour un repertoire telephonique dans un systeme de communication mobile
US20020165008A1 (en) * 2001-04-03 2002-11-07 Nec Corporation Mobile telephone using subscriber card

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0984101A (ja) * 1995-09-20 1997-03-28 Oki Electric Ind Co Ltd 移動電話機及びその終結処理回路

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621768A1 (de) * 1996-05-30 1997-12-11 Siemens Ag Telefon mit Aufnahmevorrichtung für eine Telefonspeicherkarte und Verfahren zum Übertragen von Daten einer Telefonspeicherkarte
US5895471A (en) * 1997-07-11 1999-04-20 Unwired Planet, Inc. Providing a directory of frequently used hyperlinks on a remote server
DE19917169A1 (de) * 1999-04-16 2000-11-02 Kamecke Keller Orla Verfahren zur Speicherung und Wiedergabe von Audio-, Video- und Anwendungsprogrammdaten in Mobilfunkendgeräten
US20020120857A1 (en) * 2001-02-27 2002-08-29 Chidambaram Krishnan Subscriber identity module verification during power management
WO2002073992A1 (fr) * 2001-03-14 2002-09-19 Telefonaktiebolaget Lm Ericsson (Publ) Systeme et procede permettant de mettre a jour un repertoire telephonique dans un systeme de communication mobile
US20020165008A1 (en) * 2001-04-03 2002-11-07 Nec Corporation Mobile telephone using subscriber card

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992078A2 (fr) * 2006-02-28 2008-11-19 Palm, Inc. Techniques de gestion d'une information de contact pour un module d'identité d'abonné
EP1992078A4 (fr) * 2006-02-28 2009-07-08 Palm Inc Techniques de gestion d'une information de contact pour un module d'identité d'abonné

Also Published As

Publication number Publication date
DE10257163A1 (de) 2004-06-24
WO2004052037A3 (fr) 2005-04-14

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