Apparatus and methods for determining range and bearing using time-stamped messaging
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 6, 2007
Issued Date -
N/A
app pub date -
Mar 25, 2005
filing date -
Sep 30, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An exemplary apparatus includes one or more 'communicators' that are worn, carried by, or otherwise associated with a person or location in an environment. Each communicator includes a synchronizable clock and a transmitter configured to transmit a message including a respective time stamp that is based on a time determined by the synchronizable clock. The message can be transmitted acoustically or in another manner such as by RF signal, optical signal, etc. The clock can be synchronized based on, e.g., a standard clock, another synchronizable clock associated with one or more transceivers, or a selected transceiver. The time stamp can be digital or analog, and can be configured to permit estimation of distance and bearing between synchronized communicators.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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