04656463 is referenced by 421 patents and cites 8 patents.

This invention relates to LIMIS systems, devices and methods. Specifically, it relates to the attachment of passive transceivers which can be altered or coded, erased and recoded to various items as "tags", and the use of active transceivers of various types for Location, Identification, measurement of the Movement of, Inventory and analytical, control, guidance and sorting Systems (LIMIS) using and analyzing the information received from the items.

The devices include at least one small unitary, passive transceiver (PT) and at least one active transceiver (AT) and where necessary, one or more repeater-relays and/or reflectors. The PT is attached to or embedded in the item to be identified. The PTs are encoded, decoded, identified, and located and/or their motion is detected and/or measured by the AT. The AT unit functions can be accomplished by one or more independent devices or a single device.

Title
LIMIS systems, devices and methods
Application Number
6/487284
Publication Number
4656463
Application Date
April 21, 1983
Publication Date
April 7, 1987
Inventor
Douglas A White
Aurora
CO, US
Joseph C Herring
Aurora
CO, US
Frank W Anders
Greeley
CO, US
Agent
Joseph C Herring
Assignee
Intelli Tech Corporation
CO, US
IPC
G08B 13/16
G08B 13/18
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