Patent US5777553A successfully refreshed from Google Patents.
US5777553A
Expired / Lapsed
US
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Electronic article surveillance protection for printed circuit boards
Assignee: Tyco Fire and Security GmbH
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Filing: 1996-09-06
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Granted: 1998-07-07
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Expires: 2016-09-06
Abstract
Abstract A printed circuit board includes first and second layers and an electronic article surveillance tag positioned between the first and second layers. Bonding material is positioned between the first and second layers to bond the first layer, second layer and electronic article surveillance tag together. The printed circuit board can be detected by an electronic article surveillance system.
Inventors
- 👤 Benoit Perreau
- 👤 Paul A. Kluttz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:38
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; G08B13/24; G08B13/2402; G08B13/2428; G08B13/2434; G08B13/2437; G08B13/2442; G08B13/2445; H; H05; H05K; H05K1/00; H05K1/02; H05K1/0266; H05K1/18; H05K1/182; H05K1/185; H05K2201/00; H05K2201/10; H05K2201/10007; H05K2201/10098
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
50 words
A printed circuit board comprising: (a) a first layer; (b) a second layer; (c) an electronic article surveillance tag positioned between said first and second layers; and (d) bonding material positioned between said first and second layers to bond said first layer, second layer, and electronic article surveillance tag together.
Claim 2
Dependent Claim
50 words
A printed circuit board comprising: (a) a first layer; (b) a second layer; (c) an electronic article surveillance tag positioned between said first and second layers; and (d) bonding material positioned between said first and second layers to bond said first layer, second layer, and electronic article surveillance tag together.
Claim 3
Dependent Claim
27 words
A printed circuit board as recited in claim 1, wherein said first layer has a cavity and said electronic article surveillance tag is positioned in said cavity.
Claim 4
Dependent Claim
15 words
A printed circuit board as recited in claim 2, wherein said cavity comprises a groove.
Claim 5
Dependent Claim
71 words
A printed circuit board as recited in claim 3, wherein said electronic article surveillance tag comprises a body of magnetic material with retained stress and a magnetic hysteresis loop with a large Barkhausen discontinuity such that exposure of said body to an external magnetic field whose field strength in the direction opposing the magnetic polarization of said body exceeds a predetermined threshold value results in regenerative reversal of said magnetic polarization.
Claim 6
Dependent Claim
15 words
A printed circuit board as recited in claim 4, wherein said bonding material comprises prepeg.
Claim 7
Dependent Claim
42 words
A printed circuit board as recited in claim 2, wherein said electronic article surveillance tag comprises a magnetomechanical marker that includes a magnetostrictive element that is resonant at a predetermined frequency when the biasing element has been magnetized to a predetermined level.
Claim 8
Dependent Claim
21 words
A printed circuit board as recited in claim 2, wherein said electronic article surveillance tag comprises a radio frequency identification tag.
Claim 9
Dependent Claim
57 words
A printed circuit board as recited in claim 1, wherein said first layer has a metallic layer on one of its surfaces and a portion of said metallic layer is removed creating two metallic paths that are adjacent and a groove between said two metallic paths and said electronic article surveillance tag is positioned in said groove.
Claim 10
Dependent Claim
71 words
A printed circuit board as recited in claim 8, wherein said electronic article surveillance tag comprises a body of magnetic material with retained stress and a magnetic hysteresis loop with a large Barkhausen discontinuity such that exposure of said body to an external magnetic field whose field strength in the direction opposing the magnetic polarization of said body exceeds a predetermined threshold value results in regenerative reversal of said magnetic polarization.
Claim 11
Dependent Claim
15 words
A printed circuit board as recited in claim 9, wherein said bonding material comprises prepeg.
Claim 12
Dependent Claim
23 words
A printed circuit board as recited in claim 1, wherein said electronic article surveillance tag comprises a radio frequency electronic article surveillance tag.
Claim 13
Independent Claim
77 words
A method of making a printed circuit board which comprises the steps of: (a) positioning an electronic article surveillance tag between a first and second layer of the printed circuit board; (b) positioning bonding material between the first and second layers; (c) applying heat and pressure to the first layer, electronic article surveillance tag, bonding material, and second layer to cause the bonding material to bond the first layer, electronic article surveillance tag and second layer together.
Claim 14
Independent Claim
77 words
A method of making a printed circuit board which comprises the steps of: (a) positioning an electronic article surveillance tag between a first and second layer of the printed circuit board; (b) positioning bonding material between the first and second layers; (c) applying heat and pressure to the first layer, electronic article surveillance tag, bonding material, and second layer to cause the bonding material to bond the first layer, electronic article surveillance tag and second layer together.
Claim 15
Dependent Claim
43 words
A method as recited in claim 12, further comprising the step of creating a groove in the first layer and said step of positioning an electronic article surveillance tag comprises positioning the electronic article surveillance tag in the groove in the first layer.
Claim 16
Dependent Claim
29 words
A method as recited in claim 13, wherein said step of positioning bonding material between the first and second layers comprises positioning prepeg between the first and second layers.
Claim 17
Dependent Claim
62 words
A method as recited in claim 12, further comprising the step of removing a portion of the metallic layer on one surface of the first layer to create two metallic paths that are adjacent and a groove between those two metalic paths and said step of positioning an electronic article surveillance tag comprises positioning the electronic article surveillance tag in the groove.
Claim 18
Dependent Claim
29 words
A method as recited in claim 15, wherein said step of positioning bonding material between the first and second layers comprises positioning prepeg between the first and second layers.
Claim 19
Dependent Claim
92 words
An electronic article surveillance system comprising: (a) means for generating an interrogation signal in an interrogation zone; (b) a printed circuit board comprising a first layer, a second layer, an electronic article surveillance tag positioned between said first and second layers, and bonding material positioned between said first and second layers to bond said first layer, second layer, and electronic article surveillance tag together; and (c) means for detecting said electronic article surveillance tag when said printed circuit board is in said interrogation zone and said generating means generates an interrogation signal.
Claim 20
Dependent Claim
92 words
An electronic article surveillance system comprising: (a) means for generating an interrogation signal in an interrogation zone; (b) a printed circuit board comprising a first layer, a second layer, an electronic article surveillance tag positioned between said first and second layers, and bonding material positioned between said first and second layers to bond said first layer, second layer, and electronic article surveillance tag together; and (c) means for detecting said electronic article surveillance tag when said printed circuit board is in said interrogation zone and said generating means generates an interrogation signal.
Claim 21
Dependent Claim
33 words
An electronic article surveillance system as recited in claim 17, wherein said printed circuit board has a cavity in said first layer and said electronic article surveillance tag is positioned in said cavity.
Claim 22
Dependent Claim
16 words
An electronic article surveillance system as recited in claim 18, wherein said cavity comprises a groove.
Claim 23
Dependent Claim
72 words
An electronic article surveillance system as recited in claim 19, wherein said electronic article surveillance tag comprises a body of magnetic material with retained stress and a magnetic hysteresis loop with a large Barkhausen discontinuity such that exposure of said body to an external magnetic field whose field strength in the direction opposing the magnetic polarization of said body exceeds a predetermined threshold value results in regenerative reversal of said magnetic polarization.
Claim 24
Dependent Claim
16 words
An electronic article surveillance system as recited in claim 20, wherein said bonding material comprises prepeg.
Claim 25
Dependent Claim
48 words
An electronic article surveillance system as recited in claim 18, wherein said electronic article surveillance tag comprises a magnetomechanical marker having a magnetostrictive element and a biasing element, said magnetostrictive element being resonant at a predetermined frequency when said biasing element has been magnetized to a predetermined level.
Claim 26
Dependent Claim
24 words
An electronic article surveillance system as recited in claim 18, wherein said electronic article surveillance tag comprises a radio frequency electronic article surveillance tag.
Claim 27
Dependent Claim
58 words
An electronic article surveillance system as recited in claim 17, wherein said first layer has a metallic layer on one of its surfaces and a portion of said metallic layer is removed creating two metallic paths that are adjacent and a groove between said two metallic paths and said electronic article surveillance tag is positioned in said groove.
Claim 28
Dependent Claim
72 words
An electronic article surveillance system as recited in claim 24, wherein said electronic article surveillance tag comprises a body of magnetic material with retained stress and a magnetic hysteresis loop with a large Barkhausen discontinuity such that exposure of said body to an external magnetic field whose field strength in the direction opposing the magnetic polarization of said body exceeds a predetermined threshold value results in regenerative reversal of said magnetic polarization.
Claim 29
Dependent Claim
16 words
An electronic article surveillance system as recited in claim 25, wherein said bonding material comprises prepeg.
Claim 30
Dependent Claim
24 words
An electronic article surveillance system as recited in claim 17, wherein said electronic article surveillance tag comprises a radio frequency electronic article surveillance tag.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-07-06 | 2002-01-05 | 2002-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-06 | 2006-01-05 | 2006-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-06 | 2010-01-05 | 2010-07-07 | $7700.00 | Window Closed / Lapsed |