Method and apparatus for implementing a set rate code for data channels with alternate 9-bit code words and 8-bit code words
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 21, 1998
Grant Date -
N/A
app pub date -
Feb 3, 1997
filing date -
Feb 3, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A data encoding method and apparatus are provided for implementing a predefined rate code, such as a 16/17 rate code for a data detection channel in a direct access storage device. A binary data stream is received and sequential symbols of the received binary data stream are identified. Sequential alternate symbols of the binary data stream are encoded into first codewords. Sequential alternate other symbols are encoded into second codewords. The alternating first and second codewords are sequentially combined. For a rate 16/17 rate code, the first codewords include 9-bit codewords and the second codewords include 8-bit codewords. The second 8-bit codewords are either raw symbols of the received binary data stream or remapped symbols of the received binary data stream. All likely error events are limited to within three consecutive bytes in a user data stream with a 16/17 rate code of the preferred embodiment.
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