ADPCM System for speech or like signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 12, 1982
Grant Date -
N/A
app pub date -
Jun 9, 1980
filing date -
Jun 12, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an adaptive differential pulse code modulation (ADPCM) system for frequency band compression of speech or like signals, the coefficient of the synthesis filter in both the transmitter and receiver is varied in accordance with the normalized error e.sub.j /.DELTA. rather than the error itself, thus providing greater frequency band compression and preventing transmission errors from rendering the synthesis filter unstable.
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