Child alarm
First Claim
1. A range sensitive system comprising:
- an RF transmitter assembly located on a guardian having a periodic signal generating means, a manual signal generating means, a transmitting means, and a signal encoding means, functioning to encode said periodic and manual signals;
an RF receiver assembly located on a child or object functioning to receive an RF signal from said transmitting means up to a preset distance from the transmitting means, a decoder means which receives said encoded signals, a reset timer means which resets when said periodic signal is received, and an alarm means which activates when said reset timer means times out and when said manual signal is received; and
said RF transmitter assembly and RF receiver assembly each further comprising a portable power means.said RF transmitter assembly further comprises a timer, and a multi-channel signal generating means; and
said multi-channel signal generating means comprises a channel selector switch and a channel selector timer.
1 Assignment
0 Petitions
Accused Products
Abstract
A child alarm device consists of a guardian'"'"'s transmitter and a child'"'"'s receiver. The transmitter is held or carried by the guardian. The receiver is mounted inside a backpack worn by the child. If the child wanders out of range of the guardian'"'"'s transmitter, after a short delay an audible alarm is triggered in the child'"'"'s backpack automatically. One of the child'"'"'s alarms can be triggered manually by the guardian. As an optional "Panic Button", the child can also trigger an alarm himself by disconnecting his chest strap. The child'"'"'s receiver has one Group identification code and recognizes only one channel code. The guardian can control more than one channel within the same group ID code to watch over more than one child. The backpack has anti-tamper features such that an alarm will be triggered if someone tries to tamper with the backpack or molest the child.
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Citations
20 Claims
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1. A range sensitive system comprising:
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an RF transmitter assembly located on a guardian having a periodic signal generating means, a manual signal generating means, a transmitting means, and a signal encoding means, functioning to encode said periodic and manual signals; an RF receiver assembly located on a child or object functioning to receive an RF signal from said transmitting means up to a preset distance from the transmitting means, a decoder means which receives said encoded signals, a reset timer means which resets when said periodic signal is received, and an alarm means which activates when said reset timer means times out and when said manual signal is received; and said RF transmitter assembly and RF receiver assembly each further comprising a portable power means. said RF transmitter assembly further comprises a timer, and a multi-channel signal generating means; and said multi-channel signal generating means comprises a channel selector switch and a channel selector timer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A child alarm range sensitive system to monitor the distance between a child and a guardian comprising:
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a guardian'"'"'s transmitter having an encoder means functioning to encode signals, a periodic signal generating means, a manual signal generating means, a multi-channel signal generating means, and a transmitting means functioning to transmit multiple channel codes, and a power source; a child'"'"'s receiver having a decoder means, a periodic signal receiving means, a resetting timer means functioning to reset upon receipt of the periodic signal and time out upon no receipt of the periodic signal, and alarm means functioning to activate upon time out of said resetting timer means and upon receipt of said manual signal, a power supply, and an alarm deactivate means activated by said manual signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification