Method and apparatus for modulation encoding data for storage on a multi-level optical recording medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 14, 2000
Grant Date -
N/A
app pub date -
May 21, 1998
filing date -
May 21, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method are disclosed for modulation encoding data for storage or transmission on a multilevel medium. The method includes encoding a first portion of data using a first tier modulation code. The first tier modulation code maps a first portion of the data onto a first set of symbols. A second portion of data is encoded using a second tier modulation code. The second tier modulation maps the second portion of the data onto a second set of symbols. The second tier modulation code has error correcting characteristics. A third set of symbols is determined based on the first set of symbols and the second set of symbols. The third set of symbols is suitable to determine nominal read signal levels from a multilevel medium. Improved error characteristics are realized for encoding data for storage or transmission on a multilevel medium.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully