IP Library Granted Patent US 7,423,538
Granted Patent B2
US 7,423,538 · App. 11/452,548 · Granted Sep 9, 2008

Child alert system

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Quick Facts
Patent No.
US 7,423,538
App. No.
11/452,548
Granted
Sep 9, 2008
Kind
B2
Abstract

A child alert system that uses radio transmitters and receivers to provide the location of a child, adult or object to which a transmitter unit of the system is attached. The transmitter unit includes a panic button for allowing the wearer of the transmitter unit to send a panic signal when they feel endangered. The system further includes signaling when the transmitter is submerged, when the vital signs of the wearer fall below a certain threshold, or when the transmitter is tampered or removed from the person.

Claims (9)

1. A child alert system comprising:

a receiver unit; and a transmitter unit;

the transmitter unit including a battery powered transmitter and a transmitter unit receiver installed within a jewelry item to be worn by a user that is activated remotely by an activation radio signal received by the transmitter unit receiver when the vital signs of the person fall below a certain threshold for allowing a transmitter to send out an emergency signal;

the receiver unit including receiver unit software programmed with the transmitting frequency of the transmitter unit and a receiver unit transmitter for transmitting the activation radio signal;

when activated, the transmitter unit transmitting a signal to an overhead satellite network which responds by triangulating on the received signal and which then transmits a coordinate signal to the receiver unit to instantly provide an operator of the receiver unit with the location of an individual wearing the transmitter unit.

2. The child alert system from claim 1 that further includes activation of the emergency signal by depressing a panic button twice in rapid sequence.

3. The child alert system from claim 1 wherein the receiver unit is adapted for use in a car or other vehicle to allow tracking the signal hands free while on the road.

4. The child alert system from claim 1 wherein the receiver can be locked into the signal from a specific transmitter to locate the location of the transmitter without the transmitter being activated.

5. The child alert system from claim 1 that is further linked to a T.V. satellite, Amber alter or other notification system that can send out a message to an individual or group of individuals notifying them that a problem exists with the person wearing the transmitter.

Assignments (6)
MERGER Recorded Apr 29, 2020
From: GREATCALL, INC.
To: BEST BUY HEALTH, INC.
Reel/Frame 052522/0693 →
RELEASE OF SECURITY INTEREST Recorded Oct 2, 2018
From: THE NORTHWESTERN MUTUAL LIFE INSURANCE COMPANY, AS COLLATERAL AGENT
To: GREATCALL, INC.
Reel/Frame 047174/0959 →
RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (043279/0472) Recorded Oct 2, 2018
From: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
To: GREATCALL, INC.
Reel/Frame 047184/0001 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Jul 27, 2017
From: GREATCALL, INC.
To: THE NORTHWESTERN MUTUAL LIFE INSURANCE COMPANY, AS COLLATERAL AGENT
Reel/Frame 043360/0117 →
PATENT SECURITY AGREEMENT Recorded Jul 20, 2017
From: GREATCALL, INC.
To: JEFFERIES FINANCE LLC, AS COLLATERAL
Reel/Frame 043279/0472 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2014
From: GONZALEZ, THOMAS
To: GREATCALL, INC.
Reel/Frame 033690/0646 →
Continuity (3)
Continuation In Part 1118719800 · Jul 21, 2005
Continuation In Part 0978465400 · Feb 15, 2001
Related Publication 20060232429A1 · Oct 19, 2006