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

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5226155
SERIAL NO

07397893

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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 TOSHIBATOKYO25994

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iijima, Yasuo Yokohama, JP 58 1870

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Toppan Moore Co., Ltd. (1)
* 4829169 IC card having state marker for record access 130 1986
 
LUCENT TECHNOLOGIES INC. (1)
* 4816653 Security file system for a portable data carrier 157 1986
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 4992651 IC card and method of recording data therein 18 1988
 
KABUSHIKI KAISHA TOSHIBA (4)
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* 4887234 Portable electronic device with plural memory areas 141 1989
* 4983816 Portable electronic device 33 1989
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
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THALES (1)
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SANDISK TECHNOLOGIES LLC (49)
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NEC CORPORATION (1)
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NXP B.V. (3)
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9003133 Apparatus for storing/reading data in a memory array of a transponder 0 2014
 
AUSTRIA CARD PLASTIKKARTEN UND AUSWEISSYSTEME GMBH (1)
7480775 Method and apparatus for block-oriented memory management provided in smart card controllers 0 2003
 
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KABUSHIKI KAISHA TOSHIBA (7)
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INNOVISION RESEARCH & TECHNOLOGY PLC (1)
* 2007/0274,242 MULTI-TAG EMULATOR 27 2005
* Cited By Examiner