Method and system for evaluating the quality of packet-switched voice signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2006
Issued Date -
N/A
app pub date -
Feb 7, 2001
filing date -
Dec 24, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for determining what level of performance must be maintained by a second communication service so as to be perceived as being of equal quality to a first communication service, especially where the second communication service is subject to additional impairments not experienced by the first communication service. In one example embodiment, the present invention is applied to determining what combinations of packet loss rate and packet delay are tolerable where a packet switched telephony service is desired to be perceived to be substantially equivalent to a traditional toll-quality non-packet-switched telephone service. Empirically derived models are used to relate user perception to objectively measurable characteristics, such as packet loss rate.
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