Compression and expansion of digitized voice signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 23, 1986
Grant Date -
N/A
app pub date -
Feb 14, 1983
filing date -
Feb 14, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Speech signal data compression is improved by a first compression using Time Domain Harmonic Scaling (TDHS), wherein two periods of voiced data are averaged together, followed by a second compression using Continuously Variable Slope Delta Modulation (CVSD). Pitch period detection and sampling-rate conversion are also features of the invention.
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