Acoustic direction identification system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 8, 1986
Grant Date -
N/A
app pub date -
Nov 4, 1983
filing date -
Nov 4, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system insensitive to nonspeech sounds utilizes a pair of spatially separated microphones to obtain the direction of origin of speech signals from a common sound source. The speech signal from each microphone is transformed into a pulse representative signal having a rapid increase responsive to pitch peaks of energy from the sound source. The cross correlation of these pulses accurately reflects the phase relationship between the speech signals arriving at the microphones. The cross correlation is implemented as time interval histograms which are periodically read to identify the direction of the common sound source.
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