Resources Contact Us Home
Location monitoring via implanted radio transmitter

Image Number 8 for United States Patent #6034622.

An open-loop internal monitoring system comprising (a) a plurality of internal radio transmitters, each being implanted in a human for transmitting a plurality of signal pulses, each pulse being encoded with unique identifying information; (b) a plurality of external radio receivers each having a corresponding clock, for receiving each of the plurality of signal pulses transmitted by each of the plurality of internal radio transmitters and for generating from each received signal pulse a plurality of data including at least a time-of-arrival generated in accordance with the synchronized clock of the external radio receiver and the internal radio transmitter identifying information; and (c) a central processor for (1) estimating a location for each internal radio transmitter in accordance with the time-of-arrival, (2) storing, for each human, authorized or unauthorized areas to which the human is assigned, (3) determining an event of whether the estimated location is within the authorized area or the unauthorized area assigned to any one of the humans and stored in the central processor, and (4) notifying a monitor of the central processor upon occurrence of the event.

  Recently Added Patents
Node and wireless sensor network comprising the node
Keyswitch controller
Carbon dioxide capture system and methods of capturing carbon dioxide
Faucet handle
Magnetic levitation motor used in lens module
  Randomly Featured Patents
Fuel feed pump for a fuel injection pump for internal combustion engines
Apparatus for the heat treatment of ophthalmic lenses, especially contact lenses
Nondenatured HIV envelope antigens for detecting early HIV-specific antibodies
Apparatus and method for dynamic circuit element selection in an digital-to-analog converter
Multipurpose painter's tool
Textured thermoplastic elastomeric film, articles comprising same, and method of making such textured thermoplastic elastomeric film and articles
Fermentative carotenoid production
Method and system for a deferred variable annuity with lifetime benefit payments as a function of a predetermined time-based withdrawal percent table
Furniture hinge mounting plate
Dynamic measurement of communication channel characteristics using direct sequence spread spectrum (DSSS) systems, methods and program products