The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8115629 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 14, 2012

Filed:

Sep. 24, 2009
Applicants:

Shengbo Zhu, San Jose, CA (US);

Su Shiong Huarg, Bellevue, WA (US);

Inventors:

Shengbo Zhu, San Jose, CA (US);

Su Shiong Huarg, Bellevue, WA (US);

Assignee:

Microdata Corporation, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
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 pair of crystals which are responsive to R.F. signals of specific frequencies, the frequencies of each pair being different for each folder circuit. An associated computer operates an R.F. signal generator to produce R.F. signals at the frequencies 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 invention can be applied to a wide variety of collective objects management systems, such as supermarkets, automobile parts distributors, and various manufacturing operations.


Find Patent Forward Citations

Zhu, Shengbo. (2012). Collective objects management system using r.f. object identification with multiple crystals (U.S. Patent No. 8115629). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8115629

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