Telecommunications – Radiotelephone system – Emergency or alarm communication
Patent
1998-01-20
2000-12-26
Maung, Nay
Telecommunications
Radiotelephone system
Emergency or alarm communication
455575, 455500, 455 90, 455 88, 340573, H04N 1100
Patent
active
061672491
ABSTRACT:
A rescue transceiver apparatus for transmitting a signal to and receiving a signal from another rescue transceiver apparatus is provided. The apparatus comprises a housing and a radio signal transmitter for the transmission of a radio signal in a transmitting mode with a first predetermined frequency with the radio signal transmitter being mounted within the housing. A receiver is provided for selectively receiving the first predetermined frequency from the radio signal transmitter in a receiving mode. The receiver comprises a first antenna mounted completely within the housing, a second antenna mounted completely within the housing with the second antenna being disposed substantially perpendicular to the first antenna, and a virtual third antenna mounted completely within the housing with the virtual third antenna being derived from phase information generated by the first antenna and the second antenna. The first antenna, the second antenna, and the third virtual third antenna provide three-dimensional vector analysis by the receiver of the predetermined frequency received from the radio transmitter. The apparatus further comprises a microcontroller for controlling the radio signal transmitter and the receiver.
REFERENCES:
patent: Re31375 (1983-09-01), Sellers et al.
patent: 3777267 (1973-12-01), Van Der Floe et al.
patent: 3806936 (1974-04-01), Koster
patent: 4045799 (1977-08-01), Dapiran
patent: 4121216 (1978-10-01), Bunch et al.
patent: 4219821 (1980-08-01), Selim
patent: 4314240 (1982-02-01), Schniig
patent: 4754281 (1988-06-01), Donath
patent: 4850031 (1989-07-01), Allsop et al.
patent: 5414432 (1995-05-01), Penny, Jr. et al.
patent: 5519403 (1996-05-01), Bickley et al.
patent: 5603094 (1997-02-01), Greear, Jr.
patent: 5790032 (1998-08-01), Schmidt
patent: 5847679 (1998-12-01), Yee et al.
patent: 5914675 (1999-06-01), Tognazzini
patent: 5955982 (1999-09-01), Moulin
English translation of EP 0 733 916 A2, Sep. 25, 1996, Europe.
English translation of Mit nur einem Empfanger, 1983, pp. 64-66.
A. Richtscheid, Ein Suchgerat zum schnellen Orten von Lawinenverschutteten, Internationale Elektronische Rundschau, 1975, pp. 13-16.
Emetter-Recepteur de Secours Contre les Avalanches, 1994, pp. 29-34.
Mit nur einem Empfanger, 1983, pp. 64-66.
Bond Michael X.
Hereford John W.
Hereford John W.
Maung Nay
Redmon Joy K.
LandOfFree
Avalanche victim locating transceiving apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Avalanche victim locating transceiving apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Avalanche victim locating transceiving apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1004715