Management information generating method, logical block constructing method, and semiconductor memory device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8924636
SERIAL NO

13609991

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A management information generating method wherein logical and physical block addresses (BAs) of continuous addresses are associated with each other in the BA translation table. When a logical block is constructed, a value is set for a maximum number of allowable defective physical blocks. A logical block having fewer defects than the set number is set usable, and a logical block having more defects than the set number is set unusable. System logical block construction is performed to preferentially select physical blocks from a plane list including a large number of usable blocks to equalize the number of usable blocks in each plane list. It is determined whether the number of free blocks is insufficient on the basis of a first management unit and whether the storage area for the indicated capacity can be reserved on the basis of the management unit different from the first unit.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • TOSHIBA MEMORY CORPORATION

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirao, Takashi Tokyo, JP 74 9704
Matsudaira, Hiroki Kanagawa, JP 20 234
Niisato, Yoshimi Kanagawa, JP 2 48
Sumiyoshi, Tatsuya Kanagawa, JP 4 62
Tadokoro, Mitsunori Kanagawa, JP 42 284
Tanaka, Kenji Kanagawa, JP 451 5912
Tran, Aurelien Nam Phong Kanagawa, JP 5 33
Yano, Hirokuni Tokyo, JP 74 2253

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 30, 2026
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00