Collective objects management system using R.F. object indentifi

Details Collective objects management system using R.F. object indentifi Collective objects management system using R.F. object indentifi

1998-08-31

1999-11-02

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

3405721, 3405682, 34082549, 34082554, G08B 1314

Patent

active

059778750

ABSTRACT:
A collective objects management system for objects such as documents contained in file folders in drawers of file cabinets. Each file folder has an electrical circuit with a visible indicator mounted on the file folder. Each folder circuit has a crystal which is responsive to an R.F. signal of a specific frequency, the frequency being different for each folder circuit. An associated computer operates an R.F. signal generator to produce an R.F. signal at the frequency of the particular folder circuit of the file folder selected for retrieval. To aid the user, each file drawer has a visible indicator mounted on the front panel, the panel indicator being illuminated when the sought folder is contained in that drawer. The R.F. signal generator can be operated in a sweep mode for checking the integrity of the file. The invention can be applied to a wide variety of collective objects management systems, such as supermarkets, automobile parts distributors, and various manufacturing operations.

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patent: 5739765 (1998-04-01), Stanfield et al.
patent: 5751221 (1998-05-01), Stanfield et al.

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