Patent ID: 6167249
Filing Date: 2000-12-26
Classification: A63B,G01S,G01V

Abstract:
A rescue transceiver apparatus for transmitting a signal to and receiving a signal from a different rescue transceiver apparatus, the apparatus comprising:a housing;a radio signal transmitter mounted within said housing for the transmission of a radio signal with a first predetermined frequency of about 457 kilohertz when said apparatus is in a transmit mode;a receiver mounted within said housing for selectively receiving a radio signal with said first predetermined frequency from a different rescue transceiver apparatus when said apparatus is in a receiving mode, the receiver comprising:a first wire-wound loop antenna mounted within the housing;a second wire-wound loop antenna mounted within the housing, the second wire-wound loop antenna being disposed substantially orthogonal to said first wire-wound loop antenna;means within said housing for deriving a distance between said receiver and a different rescue transceiver apparatus and for deriving a direction from said receiver to a different rescue transceiver apparatus wherein the derivations of distance and direction are derived only from signals received by said first wire-wound loop antenna and said second wire-wound loop antenna; andindication means on the housing for displaying information about a different rescue transceiver apparatus;wherein the indication means includes a distance display for displaying the distance between a different rescue transceiver apparatus in the transmit mode and the apparatus in the receiving mode.