Electronic monitoring system
First Claim
Patent Images
1. A locating device carryable by a person comprising:
- a housing with an apparatus for coupling to a person;
a direction indicating display carried by the housing;
at least an RF receiver carried by the housing;
control circuits coupled to the display and the receiver for determining a direction to a source of received signals relative to the receiver, and including circuits for activating the display responsive to the determined direction.
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Accused Products
Abstract
A monitoring system has a monitoring unit and a monitored unit. The monitored unit automatically emits RF signals detectable by the monitoring unit. The monitoring unit includes analysis circuitry for providing at least directional information indicative of the location of the monitored unit with respect to the monitoring unit.
14 Citations
28 Claims
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1. A locating device carryable by a person comprising:
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a housing with an apparatus for coupling to a person;
a direction indicating display carried by the housing;
at least an RF receiver carried by the housing;
control circuits coupled to the display and the receiver for determining a direction to a source of received signals relative to the receiver, and including circuits for activating the display responsive to the determined direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A monitoring system comprising:
a first unit carryable by a person to carry out a monitoring function wherein the first unit includes a direction indicating display and a display indicating distance to a second, displaced unit wherein the first unit is responsive to the second unit, wherein the second unit includes at least a wireless transmitter for emitting signals to which the first unit responds by indicating the direction of the second unit, relative to the first and the distance therebetween, - View Dependent Claims (16, 17)
- 18. A monitoring system as in clam 15 wherein the second unit includes circuitry for emitting an identifier signal to the first unit.
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20. A monitoring system comprising:
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a self-contained, portable, monitoring unit having a housing wherein the hosing carries control circuitry, and, at least a wireless receiver wherein the control circuitry includes executable instructions which at least in part, establish a direction to a selected source of wireless signals; and
a self-contained, portable, selected source of wireless signals that can be attached to a second user, the source has a second housing which carries at least a wireless transmitter of direction indicating wireless signals whereby the transmitter, at least intermittently, outputs direction indicating wireless signals of a type to which the receiver and executable instructions respond. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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21. A system as in clam 20 wherein the unit includes at least one direction indicating visual output device coupled to the control circuitry.
Specification