Patent
Secure real time writing for volatile storage
Bringer Laurence,Guterman Pascal +1 more
- 02 Feb 2001
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TL;DR: In this paper, the authors propose a write-read controller that verifies the integrity of the data to be written in a non-volatile storage (MNV) in a portable electronic object, such as a smart card.
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Abstract: Data in a writing request (RE1) transmitted by a processor (PR) to a write-read controller (CM) must be written in a non-volatile storage (MNV) in a portable electronic object, such as a smart card. An application can be executed in the processor simultaneously when the data are written in the storage in reply to an acknowledgement (AC) signalling the availability of the writing controller. However, another writing request transmitted before the end of writing is delayed until the end of writing. The controller also verifies the integrity of the data to be written in the storage.
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Citations
Patent
Nonvolatile memory controller and method for writing data to nonvolatile memory
Li-Chun Tu,Chao-Yi Wu,Ping-Sheng Chen +2 more
- 18 Nov 2009
TL;DR: In this paper, a nonvolatile memory controller is presented, which consists of a signature calculating circuit, a signature buffer, signature comparison circuit, data comparison circuit and a nonvivo memory interface circuit.
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Patent
Method for programming a controller in a motor vehicle
Stefan Mueller,Marc Torlo +1 more
- 03 Aug 2007
TL;DR: In this paper, a method for programming a controller in a motor vehicle, where the controller has at least one program-controlled processor and at least two individually address-sable memory areas, was proposed.
3
Patent
Secure storage access on a portable data carrier
Michael Baldischweiler,Thomas Stocker +1 more
- 19 Mar 2010
TL;DR: In this article, a portable data carrier having a nonvolatile memory and a process controller for concurrent process execution checks an access controller (8) in the case of executing a second process (11) during an executed, writing the non-volatile at the is provided memory (5) accessing the first process (10), whether the second process(11) executing in a concurrent with the first (1) in such a manner to the nonvatile memory accessing that access conflict may occur.
Patent
A data writing control circuit and a control method
Yang Shiyang,Wang Qi,Liu Fei,Huo Zongliang +3 more
- 21 Jun 2019
TL;DR: In this article, a data writing control circuit consisting of a counter, a detector, a data latch module, a delay module, an encoder and a driver is proposed to reduce power consumption.
Patent
Sicherer Speicherzugriff auf einem portablen Datenträger
Thomas Stocker,Michael Baldischweiler +1 more
- 30 Sep 2010
TL;DR: In this paper, a portablen Datentrager (1) with einem nichtfluchtigen Speicher (5) und einer Prozesssteuerung (9) zur nebenlaufigen prozessausfuhrung pruft eine Zugriffssteuerings (8) in dem Fall, dass ein Ausfuhren eines zweiten Prozesses (11) wahrend eines auszufuhrenden, schreibend auf den
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Patent
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Andreas Schwier
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Patent
Noncontact IC card
Kazuo Asami
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TL;DR: In this paper, a noncontact IC which transmits and receives data to and from a host computer using RF signals has a buffer for storing received data temporarily and a control circuit for controlling operation of the buffer main memory thereof, wherein the control circuit starts processing data stored in the buffer only when no further data is input after a predetermined data receiving time period has elapsed from the latest data input to the buffer.
65
Patent
IC card processing system capable of determing send timing between an IC card and an accepting device
Yasuo Iijima
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TL;DR: In this paper, a portable electronic apparatus processing system of this invention is described, where an IC card receives a first instruction from the IC card reader/writer and executes corresponding processing.
30
Patent
Method and system for improving the integrity of data on a smartcard
Hermann R. Bublitz,Walter Hänel,Klaus Rindtorff +2 more
- 03 Jan 1997
TL;DR: In this paper, a method and a system are proposed for increasing the data integrity on smartcards, where a sequence of write processes on a smartcard is defined as a unit for which the integrity of the data to be written is ensured.
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