Odd/even invert coding for phase change memory with thermal crosstalk

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9891843
SERIAL NO

15012748

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The odd/even invert coding for phase change memory with thermal crosstalk devises a cost model that captures Phase Change Memory (PCM) SET/RESET write asymmetries, as well as write disturbs caused by thermal crosstalk. The cost is computed by counting the different types of transitions between the old and the new data to be written to PCM. An Odd/Even Invert data encoding/decoding algorithm makes intelligent decisions based on a cost model by taking into account the number of bit flips, write asymmetry, as well as write disturbs. The data encoding algorithm recodes the data on the fly based on selective inverting (even, odd, or full invert) to search for a minimum cost solution with aim at reducing write activities and extending the PCM lifetime. A hardware architecture for the present encoding/decoding algorithm is presented that requires only two bits storage overhead for coding, regardless of the width of data.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
KUWAIT UNIVERSITYP O BOX 5969 SAFAT 13060

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahmad, Imtiaz Shuwaikh, KW 11 140
Alfailakawi, Mohammad G H Mubrik Alkabeer, KW 2 0
Hamouda, Areej Helmi Hawally, KW 1 4

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 13, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 13, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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