Richard Frederick

US Patent:

59907940, Nov 23, 1999

Filed:

Sep 26, 1996

Appl. No.:

8/721175

Inventors:

Jorge F. Alicot - Davie FL
Richard B. Frederick - Lighthouse Point FL
Scott A. Tribbey - Coconut Creek FL
Hubert A. Patterson - Boca Raton FL

Assignee:

Sensormatic Electronics Corporation - Boca Raton FL

International Classification:

G08B 2300

US Classification:

3405731

Abstract:

An apparatus for data communication and deactivating an electronic article surveillance tag comprising an antenna for communicating with a transponder located within a predetermined area and a deactivation coil for deactivating an electronic article surveillance tag located within the predetermined area.

US Patent:

58595872, Jan 12, 1999

Filed:

Sep 26, 1996

Appl. No.:

8/721121

Inventors:

Jorge F. Alicot - Davie FL
Richard B. Frederick - Lighthouse Point FL
Hubert A. Patterson - Boca Raton FL

Assignee:

Sensormatic Electronics Corporation - Boca Raton FL

International Classification:

G08B 13187

US Classification:

340572

Abstract:

A data communication and electronic article surveillance tag includes a data communication transponder and an electronic article surveillance tag.

US Patent:

56253419, Apr 29, 1997

Filed:

Aug 31, 1995

Appl. No.:

8/522023

Inventors:

Olin S. Giles - Boca Raton FL
Hubert A. Patterson - Boca Raton FL
Richard Frederick - Lighthouse Point FL
David B. Ferguson - Boca Raton FL

Assignee:

Sensormatic Electronics Corporation - Deefield Beach FL

International Classification:

G08B 1314

US Classification:

340572

Abstract:

A multi-bit electronic article surveillance marker includes an antenna circuit and is powered by an interrogation field generated by EAS detection equipment and received by the marker's antenna circuit. The marker generates a multi-bit signal by selectively disturbing the interrogation field. The disturbances may be created by selectively short circuiting the marker's antenna circuit. All of the marker circuitry, including a coil that is part of the antenna circuit, may be provided as circuit elements formed on a semiconductor integrated circuit substrate.