Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
1999-01-19
2001-07-03
Lefkowitz, Edward (Department: 2736)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S568100, C340S570000, C340S571000, C340S572100, C340S572500, C235S00700R, C235S375000
Reexamination Certificate
active
06255947
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a tag having a resonant circuit section that resonates at a specified frequency of a radio wave from a radio-wave originating system. More particularly, the invention relates to a tag employed for an alarm device that gives an alarm when the tag to be located with an article is not present.
2. Description of the Related Art
Conventionally, locking a cash register or a safe in non-office hours prevents bills and the like kept therein from being stolen by someone who breaks in. In case the bills are about to be robbed by a burglar whether during business hours or non-business hours, an alarm for preventing theft is activated by an office-staff member to inform a security guard outside.
However, such a conventional type of theft preventing device requires modifications, since the staff member may not necessarily be ready to activate the alarm when a robbery occurs. Particularly, when no staff member is present, the conventional type of device does not work effectively.
SUMMARY OF THE INVENTION
Accordingly, it is a first object of the present invention to provide a tag which is used for detecting theft of articles such as bills, notes, or securities to be positioned therewith in a specified place, for example, a cash register, a safe, or the like.
It is a second object of the present invention to provide a theft detecting tag in which there is no effect on the detecting capability of a tag detecting sensor, even if a conductive or magnetic auxiliary member is arranged between the sensor and the tag.
It is a third object of the present invention to provide a theft detecting tag, which can effectively detect the theft of bills, notes, or securities.
In an aspect according to the present invention, as shown in
FIGS. 1
,
2
,
6
, and
7
, there is provided a theft detecting tag including an insulating base sheet, and at least one or more resonant circuit sections disposed thereon; in which the tag allows an alarm not to be activated when it is positioned with an article in a specified place to be detected by a tag detecting sensor disposed near the article, while it allows the alarm to be activated when it is not detected by the sensor.
According to the theft detecting tag described above, the alarm is not activated when the tag is positioned with the article in a specified place. In contrast, the alarm is activated to inform the incident of a theft when the tag is taken out with the article and the absence of the tag in the specified place is detected by the sensor.
Here, when a conductive or magnetic auxiliary member is arranged between the tag detecting sensor and the tag, at least one of the resonant circuit sections may be disposed apart from the auxiliary member.
Therefore, in this case, even if the conductive or magnetic auxiliary member is disposed between the tag detecting sensor and the tag, the auxiliary member does not change a self-inductance of the resonant circuit section, so that the sensor can detect the presence of the tag. When the tag is taken out of the specified place with the article, the tag detecting sensor detects the absence of the tag in the specified place so as to allow the alarm to be activated.
Regarding the tag, preferably, the specified place is a case in a cash register or a safe; the article is a number of bills, notes, or securities; the auxiliary member is a metal retainer of the article; and the insulating base sheet is a theft detecting tag formed into substantially the same shape and size as those of the article.
This tag allows detection of the theft of bills, notes, or securities kept in the cash register or safe which have the metal retainer; and the insulating base sheet formed into substantially the same shape and size as those of the article is kept with the article so as to effectively allow detection of the theft.
Furthermore, in the theft detecting tag, as shown in
FIGS. 6 and 7
, when fold lines corresponding to fold lines or perforations of the article are formed on the insulating base sheet, the resonant circuit sections may be disposed apart from the fold lines of the base sheet.
Thus, in this case, even if the tag is mistakenly folded with bills, etc., together, the resonant circuit sections are not damaged.
According to another aspect of the present invention, as shown in
FIGS. 11
to
13
, there is provided a theft detecting tag including a main part of the tag which is composed of the insulating base sheet and one or more resonant circuit sections disposed thereon, being positioned in a case of a cash register or safe having a tag detecting sensor and keeping the bills, notes, or securities, in which the main part of the tag allows the alarm not to be activated when it is detected by the sensor, while it allows the alarm to be activated when it is not detected by the sensor; and an attached sheet which is partially adhered to the main part of the tag by stacking one or more sheets on one side or both sides of the main part of the tag, and which has the same shape, size, and texture as those of the bills, notes, or securities.
In this tag, when a person (hereinafter referred to as a robber) seizes the bills or the like stacked on an attached sheet, taking them without permission, the robber feels that the attached sheet has the same texture as the bills, etc. As a result, the attached sheet is taken out with the bills, etc., by the robber without precaution. Additionally, the main part of the tag is taken out with the attached sheet, since the attached sheet is partially adhered to the main part of the tag. Thus, this allows the tag detecting sensor to detect the absence of the main part of the tag in the specified place and allows the alarm to be activated to inform the incident of the theft.
Regarding the tag, when a conductive or a magnetic auxiliary member is disposed between the tag detecting sensor and the main part of the tag, at least one of the resonant circuit sections may be disposed apart from the auxiliary member, and no resonant circuit sections may be disposed at a position retained by the auxiliary member.
Here, when the main part of the tag is disposed in the case, of the resonant circuit sections, the resonant circuit section disposed apart from the auxiliary member produces resonance, so that a tag detecting circuit does not activate the alarm.
It is possible for the tag to be folded at the position where there is no resonant circuit section, and it is impossible for the resonant circuit section to be damaged even if the auxiliary member is repeatedly placed to retain the main part of the tag, since there is no resonant circuit section at the position retained by the auxiliary member.
In other words, concerning a tag arranged in such a manner that a resonant circuit is present at the position retained by the auxiliary member, when the tag damaged due to being folded or repeated retaining by the auxiliary member is arranged in the reversed direction, the alarm can mistakenly be activated. However, the tag of the present invention does not permit such a fault to occur.
Regarding the tag in this case, when the conductive or magnetic auxiliary member is disposed between the tag detecting sensor and the main part of the tag, at least one of the resonant circuit sections may be disposed apart from the auxiliary member, and, a metal sheet of the same thickness as that of a conductive metal foil forming the resonant circuit section at the position retained by the auxiliary member may be disposed on the insulating base sheet.
Here, when the main part of the tag is arranged in the case, of the resonant circuit sections, the resonant circuit section disposed apart from the auxiliary member produces resonance, so that the tag detecting circuit allows the alarm not to be activated.
Since this tag has the metal sheet arranged as above, the strength of the tag can be increased and the thickness of the tag can be uniform, so that the bills or the like to be stacked on the attached sheet can be kept in a natural manner.
REFERENCES:
pa
Endo Takanori
Ishiyama Kouichi
Miyake Masami
Mori Tomohiro
Osawa Shigeyuki
Goins Davetta W.
Lefkowitz Edward
Mitsubishi Materials Corporation
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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