Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2006-12-12
2006-12-12
Trieu, Van T. (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S539320, C340S568100, C340S573400, C340S686600
Reexamination Certificate
active
07148801
ABSTRACT:
A system and method for locating objects such as people, pets, and personal articles is described. A transceiver is attached to the person, animal, or item to be tracked and a handheld locator device is employed to transmit a locator signal containing an address code to the transceiver. Upon receipt of a signal, the transceiver compares the address code contained in the locator signal with an address code stored in the transceiver. If the two codes are same, the transceiver sends a return signal back to the locator device. The locator device uses this return signal to determine the distance and/or direction of the transceiver from the user's location. The system allows a user to select from a multiple number of items to locate and allows multiple users to search for different articles within the same general area without interference.
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Crabtree Timothy L.
DelMain Gregory J.
McArthur Paul
Rassool Reza P.
Wells Michael F.
Knobbe Martens Olson and Bear LLP
Trieu Van T.
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