US Patent No: 5,226,155

Number of patents in Portfolio can not be more than 2000

Method and system for allocating file space in memory of IC card

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a memory area of a data memory in an IC card, data file definition data for defining a data file is stored from one end of the memory area, and a data file is defined from the other end of the memory area. Area definition data for defining an area in a data file is stored from one end of a data file, and an area is defined from the other end of the data file.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KABUSHIKI KAISHA TOSHIBATOKYO25925

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iijima, Yasuo Yokohama, JP 58 1847

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Toppan Moore Co., Ltd. (1)
* 4,829,169 IC card having state marker for record access 129 1986
 
LUCENT TECHNOLOGIES INC. (1)
* 4,816,653 Security file system for a portable data carrier 157 1986
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 4,992,651 IC card and method of recording data therein 18 1988
 
KABUSHIKI KAISHA TOSHIBA (4)
* 4,949,240 Data storage system having circuitry for dividing received data into sequential wards each stored in storage region identified by chain data 43 1988
* 4,887,234 Portable electronic device with plural memory areas 138 1989
* 4,983,816 Portable electronic device 33 1989
* 4,985,615 Portable electronic apparatus having key data for limiting memory access 77 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5,652,864 Concurrent storage allocations or returns without need to lock free storage chain 17 1994
 
HEWLETT-PACKARD COMPANY (1)
* 5,414,826 System and method for memory management in microcomputer 16 1990
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
* 5,594,889 Memory resource allocation look ahead system and method 18 1995
 
FUJITSU LIMITED (2)
* 5,548,757 Method and apparatus for appending information to data files, ensuring proper end-of-file indication 11 1995
* 6,168,078 Card reader 2 1998
 
Pitney Bowes Inc. (1)
* 5,339,411 Method for managing allocation of memory space 101 1993
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (2)
7,024,532 File management method, and memory card and terminal apparatus that make use of the method 1 2002
* 2003/0033,496 File management method, and memory card and terminal apparatus that make use of the method 1 2002
 
THALES (1)
* 7,568,065 Method for carrying out writing updating and allocating memory on a memory medium 10 2004
 
SANDISK TECHNOLOGIES LLC (49)
7,877,539 Direct data file storage in flash memories 6 2005
* 2006/0184,720 Direct data file storage in flash memories 78 2005
* 2006/0184,719 Direct data file storage implementation techniques in flash memories 58 2005
* 2006/0184,718 Direct file data programming and deletion in flash memories 68 2005
9,104,315 Systems and methods for a mass data storage system having a file-based interface to a host and a non-file-based interface to secondary storage 0 2005
7,627,733 Method and system for dual mode access for storage devices 10 2005
7,480,766 Interfacing systems operating through a logical address space and on a direct data file basis 44 2005
* 2007/0033,323 Interfacing systems operating through a logical address space and on a direct data file basis 45 2005
7,814,262 Memory system storing transformed units of data in fixed sized storage blocks 2 2005
7,529,905 Method of storing transformed units of data in a memory system having fixed sized storage blocks 80 2005
* 2007/0088,904 Memory system storing transformed units of data in fixed sized storage blocks 29 2005
* 2007/0086,260 Method of storing transformed units of data in a memory system having fixed sized storage blocks 138 2005
7,877,540 Logically-addressed file storage methods 1 2005
* 2007/0136,555 Logically-addressed file storage methods 39 2005
8,291,151 Enhanced host interface 2 2005
7,793,068 Dual mode access for non-volatile storage devices 3 2005
7,769,978 Method and system for accessing non-volatile storage devices 8 2005
7,747,837 Method and system for accessing non-volatile storage devices 12 2005
* 2007/0143,571 Dual mode access for non-volatile storage devices 29 2005
* 2007/0143,570 Method and system for accessing non-volatile storage devices 20 2005
* 2007/0033,327 Enhanced host interface 53 2005
* 2007/0033,326 Enhanced host interfacing methods 73 2005
* 2006/0184,722 Direct data file storage implementation techniques in flash memories 83 2006
* 2006/0184,723 Direct file data programming and deletion in flash memories 88 2006
8,055,832 Management of memory blocks that directly store data files 2 2006
7,581,057 Memory system with management of memory blocks that directly store data files 2 2006
7,558,905 Reclaiming data storage capacity in flash memory systems 2 2006
7,450,420 Reclaiming data storage capacity in flash memories 78 2006
* 2007/0030,734 Reclaiming Data Storage Capacity in Flash Memories 21 2006
* 2007/0033,328 Management of Memory Blocks That Directly Store Data Files 35 2006
* 2007/0033,330 Reclaiming Data Storage Capacity in Flash Memory Systems 60 2006
* 2007/0033,329 Memory System With Management of Memory Blocks That Directly Store Data Files 45 2006
7,949,845 Indexing of file data in reprogrammable non-volatile memories that directly store data files 0 2006
7,669,003 Reprogrammable non-volatile memory systems with indexing of directly stored data files 10 2006
7,558,906 Methods of managing blocks in nonvolatile memory 3 2006
7,552,271 Nonvolatile memory with block management 70 2006
* 2007/0033,375 Indexing of File Data in Reprogrammable Non-Volatile Memories That Directly Store Data Files 38 2006
* 2007/0033,374 Reprogrammable Non-Volatile Memory Systems With Indexing of Directly Stored Data Files 50 2006
7,610,437 Data consolidation and garbage collection in direct data file storage memories 6 2006
7,590,794 Data operations in flash memories utilizing direct data file storage 2 2006
7,590,795 Flash memory systems utilizing direct data file storage 7 2006
7,562,181 Flash memory systems with direct data file storage utilizing data consolidation and garbage collection 5 2006
* 2007/0186,032 Flash Memory Systems With Direct Data File Storage Utilizing Data Consolidation and Garbage Collection 62 2006
* 2007/0033,376 Data Consolidation and Garbage Collection in Direct Data File Storage Memories 53 2006
8,209,516 Method and system for dual mode access for storage devices 1 2010
7,984,233 Direct data file storage implementation techniques in flash memories 1 2010
* 2010/0217,926 Direct Data File Storage Implementation Techniques in Flash Memories 4 2010
8,214,583 Direct file data programming and deletion in flash memories 18 2010
* 2010/0223,423 Direct File Data Programming and Deletion in Flash Memories 20 2010
 
NEC CORPORATION (1)
* 6,115,800 Method for managing received radio data 1 1997
 
NXP B.V. (3)
* 8,341,361 Method for storing data as well as a transponder, a read/write-device, a computer readable medium including a program element and such a program element adapted to perform this method 0 2007
8,688,929 Method for storing data as well as a transponder, a read/write-device, a computer readable medium including a program element and such a program element adapted to perform this method 0 2012
9,003,133 Apparatus for storing/reading data in a memory array of a transponder 0 2014
 
Austria Card Plastikkarten und Ausweissysteme GmbH (1)
7,480,775 Method and apparatus for block-oriented memory management provided in smart card controllers 0 2003
 
KABUSHIKI KAISHA TOSHIBA (7)
* 5,644,750 Data storage apparatus having memory area with a predetermined logic type 10 1994
* 5,581,708 Data transmission system using electronic apparatus having a plurality of transmission protocols 79 1994
* 5,437,028 File management system with file-size flexibility 20 1994
* 5,515,532 File management system for memory card 27 1994
* 5,608,902 File management system for memory card 11 1994
* 5,748,915 Transmission method of changing protocol and data processing apparatus using this method 24 1996
* 5,929,428 File managing method requiring a change in key data and IC card device using the method 18 1997
 
INNOVISION RESEARCH & TECHNOLOGY PLC (1)
* 2007/0274,242 MULTI-TAG EMULATOR 24 2005
* Cited By Examiner