Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
1999-12-13
2001-09-04
Sircus, Brian (Department: 2839)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C257S662000
Reexamination Certificate
active
06285561
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a device with a data carrier module which is arranged for contractless communication with a communication station and includes a holding means and an integrated circuit which is arranged on the holding means at the area of a holding surface of the holding means and is provided with at least two circuit connection contacts, and also includes a protective cap of an electrically insulating material which protectively covers the integrated circuit and includes a transmission coil which is also arranged on the holding means at the area of the holding surface of the holding means and has at least one coil turn and two coil connection contacts, each of which is connected to a respective associated circuit connection contact.
The invention also relates to a data carrier module which is arranged for contactless communication with a communication station and includes a holding means and an integrated circuit which is arranged on the holding means at the area of a holding surface of the holding means and is provided with at least two circuit connection contacts, and also includes a protective cap of an electrically insulating material which covers the integrated circuit so as to protect it and includes a transmission coil which is also arranged on the holding means at the area of the holding surface of the holding means and has at least one coil turn and two coil connection contacts, each of which is connected to a respective associated circuit connection contact.
BACKGROUND OF THE INVENTION
A device of the kind set forth in the first paragraph and a data carrier module of the kind set forth in the second paragraph are known, for example from the patent document WO 98/35452 A1. The embodiment disclosed in the cited patent document concerns a clock which accommodates a data carrier module whose holding means is formed essentially by a printed circuit board which serves to hold a time display device and a clock chip as well as to hold a transponder chip and a transmission coil. The transmission coil therein is arranged fully unprotected on the printed circuit board acting as the holding means. Consequently, handling of the data carrier module during, for example, the building in into the clock, is liable to influence or damage or partially short-circuit coil turns of the transmission coil whereas when the data carrier module has already been mounted in the clock, contaminations or moisture could lead to partial short-circuiting of coil turns of the transmission coil. the data carrier module has already been mounted in the clock, contaminations or moisture could lead to partial short-circuiting of coil turns of the transmission coil.
It is an object of the invention to avoid the described problems and to provide, while using simple means, an improved device of the kind let forth in the first paragraph and an improved data carrier module of the kind set forth in teh second paragraph.
SUMMARY
In order to achieve this object, the transmission coil in a device of the kind set forth in the first paragraph according to the invention is covered by a protective layer of an electrically insulating material, a respective window being formed in the protective layer at the area of each of the two coil connection contacts and a connection wire being connected between each connection coil contact and its respective associated circuit connection contact, which connection wire is guided to the relevant coil connection contact via a window, the protecting cap protectively covering not only the integrated circuit but also the two connection wires and the two windows as well as the area of the two coil connection contacts which adjoin the two windows.
In order to achieve the above object in a data carrier of the kind set forth in the second paragraph according to the invention, the transmission coil is covered by a protective layer of an electrically insulating material, a window being formed in the protective layer at the area of each of the two coil connection contacts and a connection wire being connected between each coil connection contact and its associated circuit connection contact, which connection wire is guided to the relevant coil connection contact via a window, the protective cover protectively covering not only the integrated circuit but also the two connection wires and the two windows as well as the areas of the two coil connection contacts which adjoin the two windows.
Taking the steps according to the invention, it is very simply ensured that the integrated circuit as well as the connection wires to the coil connection contacts of the transmission coil and the transmission coil itself are very thoroughly protected, so that it is very reliably ensured, for a data carrier module according to the invention which has not yet been built into a device according to the invention as well as for a device according to the invention with a built-in data carrier module according to the invention, that no adverse effects can be exerted on the transmission coil and hence the faults or damage induced by such adverse effects are practically precluded. Taking the steps according to the invention, it is also ensured, because of the presence of the protective layer for the transmission coil, that undesirable short-circuits cannot occur between the connection wires and the coil turns of the transmission coil during the manufacture of the protective cap.
The holding means in a device according to the invention and in a data carrier module according to the invention, may be formed by means of different, electrically insulating materials. It has been found to be very advantageous, however, to take the steps disclosed in the Claims
2
and
6
, because steps which are known per se from printed circuit board technology can thus be advantageously taken also for a device according to the invention and for a data carrier module according to the invention.
The protective layer and the protective cover for such a device according to the invention and such a data carrier module according to the invention may be made of different insulating materials. However, it has been found that it is particularly advantageous to take the steps disclosed in the Claims
3
and
4
as well as
7
and
8
, because particularly good bonding conditions and hence particularly good properties in respect of strength and insulation are thus achieved.
The foregoing aspects and further aspects of the invention are apparent from and will be elucidated, by way of example, with reference to the embodiment described hereinafter.
REFERENCES:
patent: 5386342 (1995-01-01), Rosterko
patent: 5708567 (1998-01-01), Shim et al.
patent: 5801440 (1998-09-01), Chu et al.
patent: 5818102 (1998-10-01), Rostoker
patent: 5841191 (1998-11-01), Chie et al.
patent: 0123456-A2 (2000-01-01), None
patent: 2743649 A (1997-07-01), None
patent: WO9835452 (1998-08-01), None
Aflenzer Günter
Schmallegger Peter
Schober Joachim
Toth Marcus
Dinh Phuong K T
Mak Theodorus
Sircus Brian
U.S. Philips Corporation
LandOfFree
Data carrier module device having integrated circuit and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data carrier module device having integrated circuit and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data carrier module device having integrated circuit and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2549759