Out-of-range personnel monitor and alarm
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United States of America Patent
Stats
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Jun 23, 1987
Issued Date -
N/A
app pub date -
May 30, 1986
filing date -
Mar 16, 1984
priority date (Note) -
Expired
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Abstract
An out-of-range monitor and alarm system that may be used by a convalescent home or the like to alert an attendant in the home that a supervised person has walked beyond a predetermined prescribed distance. The system includes a base unit that transmits a first signal to a receiver in a mobile unit carried by the supervised person. The receiver includes a threshold circuit that is adjustable to correspond to the prescribed distance and produces a threshold output signal whenever the first signal detected by the receiver drops below the threshold level. In response to the threshold output signal, a transmitter in the mobile unit produces a second signal to a receiver in the base unit, which in turn sounds an alarm indicating that the mobile unit has lost adequate signal strength, as determined by the threshold adjustment, by exceeding the range prescribed for the supervised person. The first and second signals may have equal frequencies if the mobile unit produces an output signal having an identification code. The base unit has decoder for identifying the responsible mobile unit.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- NARCISSE, BERNADINE, TRUSTEE OF THE NARCISSE 1985 FAMILY TRUST DATED JULY 15, 1985.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Narcisse, Bernadine O | 10366 Miller Ave., Cupertino, CA 95014 | 2 | 482 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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