Patents Assigned to Spectrum Electronics, Inc.
  • Patent number: 6232882
    Abstract: To differentiate between lightning strikes and tornado generated electromagnetic signals, a tornado detection system and method is made up of RF receiving circuits which receive signals at two frequencies, while implementing a time variable automated calibration and the use of special algorithms, to reliably detect tornado events and to signal an alarm. A network of such systems can be implemented, using a plurality of antennas which are capable of discerning a directional vector, and integrating the directional information from multiple units by effecting a triangulation calculation in a server terminal to determining a position and path of an approaching tornado.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: May 15, 2001
    Assignee: Spectrum Electronics, Inc.
    Inventors: Aharon Ze'ev Hed, Richard Pavelle, Sol Aisenberg, George Freedman
  • Patent number: 4792946
    Abstract: A local area network for digital information transmission to and from each of a plurality of building units in an area, such as homes in a neighborhood is provided, wherein all connections between units are wireless. Each unit is provided with and fm transceiver station, which is connected with an electrical system in said unit, such as a security system or a power distribution system in such a way that information can be gathered from said system and commands delivered to said system. Each transceiver is adapted to operate at a power level and on a frequency which does not require an FCC license. Each transceiver includes programmable means adapted to cause said transceiver to recognize transmission specifically addressed to it by other stations in the network, and to cause said transceiver to generate and send transmissions specifically addressed to other transceivers in the network.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: December 20, 1988
    Assignee: Spectrum Electronics, Inc.
    Inventor: Scott T. Mayo
  • Patent number: D408441
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: April 20, 1999
    Assignee: Spectrum Electronics, Inc.
    Inventor: Donald Muntner