"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8064412 | Systems and methods for monitoring conditions Systems and methods for monitoring conditions are provided. A system can comprise a plurality of wireless transmitters and a plurality of repeaters. At least one wireless transmitter can be integrated into an alarm. The repeaters can be dispersed throughout a region... | 11/22/2011 |
| 8031650 | System and method for monitoring remote devices with a dual-mode wireless communication protocol The present invention is generally directed to systems and device for monitoring remote device with a wireless, dual-mode communication protocol. As such, a representative embodiment is a system for monitoring and controlling remote devices. The system includes a fi... | 10/04/2011 |
| 8013732 | Systems and methods for monitoring and controlling remote devices Embodiments of the present invention are generally directed to a system for monitoring a variety of environmental and/or other conditions within a defined remotely located region. Such a system may be configured to monitor utility meters in a defined area. The syste... | 09/06/2011 |
| 7756086 | Method for communicating in dual-modes The present invention is generally directed to methods for communicating in a dual-mode communication protocol. A representative embodiment of the present invention comprises: enabling communication in a spread-spectrum communication protocol, comprising: receiving ... | 07/13/2010 |
| 7739378 | System and method for transmitting pollution information over an integrated wireless network A pollution information message system provides a system and method for generating and transmitting pollution information messages. In one embodiment, the pollution information message system employs a transceiver network with a plurality transceivers coupled to mon... | 06/15/2010 |
| 7697492 | Systems and methods for monitoring and controlling remote devices Systems and methods for monitoring and controlling remote devices are provided. In an embodiment, a system can comprise one or more remotely controlled sensors and actuators. The remote sensors/actuators can interface with uniquely identified remote transceivers tha... | 04/13/2010 |
| 7650425 | System and method for controlling communication between a host computer and communication devices associated with remote devices in an automated monitoring system A site controller adapted to be used in an automated monitoring system for monitoring and controlling a plurality of remote devices via a host computer connected to a first communication network is provided. The site controller is configured for controlling communic... | 01/19/2010 |
| 7424527 | System and method for transmitting pollution information over an integrated wireless network A pollution information message system provides a system and method for generating and transmitting pollution information messages. In one embodiment, the pollution information message system employs a transceiver network with a plurality transceivers coupled to mon... | 09/09/2008 |
| 7397907 | Multi-function general purpose transceiver The present invention is generally directed to a system and associated method for communicating information to a predetermined location. The system includes a transmitter disposed at a first location and configured to transmit a signal containing an instruction code... | 07/08/2008 |