Ultrasonic tracking and locating system
S Holm, R Holm, S Rostad - US Patent 7,352,652, 2008 - Google Patents
The invention relates to a method and a system for monitoring and position determination of
objects and/or living beings within an area such as, eg a room in a building or a road tunnel …
objects and/or living beings within an area such as, eg a room in a building or a road tunnel …
Ultrasonic locating system
S Holm - US Patent 7,362,656, 2008 - Google Patents
The invention relates to a method and a system for moni toring and position determination of
objects and/or living beings within an area, such as, eg a room in a building or a road tunnel …
objects and/or living beings within an area, such as, eg a room in a building or a road tunnel …
Ultrasonic tracking and locating system
RW Lester - US Patent 3,696,384, 1972 - Google Patents
An ultrasonic tracking and locating system in which an identification code number is
programmed on a console keyboard to activate an encoder which transmits a plurality of …
programmed on a console keyboard to activate an encoder which transmits a plurality of …
Electronic tracking locating system using multiple frequency, modulated, and time delayed ultrasonic signals
R Lester - US Patent 3,805,227, 1974 - Google Patents
An electronic tracking and locating system for automatically locating at least one of a select
group of individuals or objects disposed within a selected area of surveillance is disclosed …
group of individuals or objects disposed within a selected area of surveillance is disclosed …
Ultrasonic positioning and tracking system
N Amorai-Moriya, M Itzkovitch - US Patent 6,141,293, 2000 - Google Patents
57 ABSTRACT A method of tracking an object within a Surveillance area having a
predetermined linear extent. One or more ultra Sound transducers are fixed to the object. A …
predetermined linear extent. One or more ultra Sound transducers are fixed to the object. A …
System and method for position determination of objects
S Holm, R Holm, O Hovind - US Patent 7,535,796, 2009 - Google Patents
(57) ABSTRACT A method and a system for detection and position determi nation of chips,
which transmit ultrasound signals in a room. The system comprises electronic identification …
which transmit ultrasound signals in a room. The system comprises electronic identification …
System and method for position determination of objects
S Holm, R Holm, O Hovind - US Patent 7,283,423, 2007 - Google Patents
(57) ABSTRACT A method and a system (400) for detection and position determination of
chips (100), which transmit ultrasound signals in a room. The system (400) comprises …
chips (100), which transmit ultrasound signals in a room. The system (400) comprises …
Personnel location system
JE Ward - US Patent 3,439,320, 1969 - Google Patents
ABSTRACT OF THE DISCLOSURE Each of a plurality of persons whose location is to be
ascertained carries a transmitter that produces an ultra Sonic sound signal having a unique …
ascertained carries a transmitter that produces an ultra Sonic sound signal having a unique …
Method and system for in-air ultrasonic acoustical detection and characterization
PL Feintuch, FA Reed, M Cox, RA Borrell - US Patent 6,987,707, 2006 - Google Patents
A system and method are presented for determining the detection and location of persons
and objects using ultrasonic acoustic sensors. The system allows detection of stationary and …
and objects using ultrasonic acoustic sensors. The system allows detection of stationary and …
System for supervision and control of objects or persons
OB Hovind, E Sandmol - US Patent 6,433,689, 2002 - Google Patents
(57) ABSTRACT A System for Supervision and control of objects or persons within a limited
area, Such as a building, comprising a plurality of electronic identification chips for placing …
area, Such as a building, comprising a plurality of electronic identification chips for placing …