# Patent

## Title
Merchandise security system including retractable alarming power cord

## Abstract

A merchandise security system for an electronic item of merchandise is provided. In one example, the merchandise security system includes a continuous alarming power cord comprising at least one electrical conductor. The alarming power cord has a first end adapted to be electrically connected to the electronic item of merchandise and a second end. The merchandise security system also includes a reel for receiving the second end of the alarming power cord and adapted for storing at least a portion of the alarming power cord thereon. In addition, the merchandise security system includes monitoring circuitry in electrical communication with the alarming power cord and configured to detect an interruption in an electrical signal provided to the alarming power cord.

## Background
CROSS REFERENCE TO RELATED APPLICATIONS
This non-provisional utility patent application claims the benefit of priority of U.S. Provisional Application No. 61/695,107, filed on Aug. 30, 2012, entitled MERCHANDISE SECURITY SYSTEM INCLUDING RETRACTABLE ALARMING POWER CORD, which is hereby incorporated by reference in its entirety.


FIELD OF THE INVENTION
Embodiments of the present invention relate generally to merchandise systems that provide power and security for an item of merchandise.
BACKGROUND OF THE INVENTION
U.S. Pat. No. 6,799,994 assigned to Telefonix, Inc. of Waukegan, Ill. discloses an apparatus and a method for the convenient management of cords associated with the retail display of an electronic item of merchandise, such as a video camera. The apparatus includes a multi-conductor power cable and a reel for dispensing and retracting the power cable. The apparatus further comprises an adapter cord selected from a plurality of adapter cords for electrically connecting the power cable to a variety of items of merchandise having different power and connection requirements. The power cable is directly coupled to an alarm module that activates an alarm in response to an electronic circuit being opened in the event that the power cable is cut or disconnected.
U.S. Patent Application Publication No. 2012/0043936 A1 assigned to RTF Research & Technologies, Inc. of Caledon, Ontario Canada discloses a charging and monitoring system for handheld electronic items of merchandise, such as cell phones, Blackberry's, PDAs, cameras and the like. The system includes a coaxial security and power cable having a conductive core. A portion of one end of the coaxial power cable is accumulated on a reel of a recoiler assembly, while the other end of the coaxial power cable is adapted to mechanically and electrically engage a preferred mounting pad for a handheld electronic item of merchandise. The end of the coaxial cable accumulated on the reel is electrically coupled to a power and alarm cable through an electrical connector, such as a conventional registered jack (RJ) plug and socket. The free end of the power and alarm cable is electrically coupled to a power and alarm router having multiple ports for electrical connection to multiple power and alarm cables. The mounting pad is adapted to provide power to a power input port of the handheld electronic item of merchandise by means of a conventional electrical connection, such as a standard USB cable extending from the mounting pad.
BRIEF SUMMARY OF THE INVENTION
Embodiments of the present invention are directed to merchandise security systems for an electronic item of merchandise. In one embodiment, the merchandise security system includes a continuous alarming power cord comprising at least one electrical conductor. The alarming power cord has a first end adapted to be electrically connected to the electronic item of merchandise. The merchandise security system also includes a reel for receiving a second end of the alarming power cord that is adapted for storing at least a portion of the alarming power cord thereon. The merchandise security system further includes monitoring circuitry in electrical communication with the alarming power cord and configured to detect an interruption in an electrical signal provided to the alarming power cord. Thus, the alarming power cord may not require a second cable selected from a plurality of adapter cables to provide an appropriate operating voltage and/or current to the electronic item of merchandise.
In one embodiment, the merchandise security system includes an alarm module comprising the monitoring circuitry and a power cable having a first end electrically coupled to the second end of the alarming power cord and a second end electrically connected to the alarm module. The second end of the alarming power cord and the first end of the power cable may each terminate in a transformer comprising a coiled spool of wire configured to electrically connect the alarming power cord and the power cable. Thus, the alarming power cord and the power cable may not be in direct wire-to-wire electrical communication. According to one example, the reel comprises a central hub portion for receiving the second end of the alarming power cord, wherein the first end of the power cable is electrically coupled to the second end of the alarming power cord at the central hub portion of the reel. The alarm module may be configured to generate an audible and/or a visible alarm in response to interruption of the electrical signal. Moreover, the second end of the alarming power cord may include a connector and the first end of the power cable may include a socket or plug configured to mate with the connector.
According to one embodiment, the merchandise security system further comprises a display stand for housing the reel and providing electrical power to the alarming power cord. The electronic item of merchandise may be configured to be removably secured on the display stand. Each of the reel and the display stand may include electrical traces configured to electrically couple with one another for providing electrical power through the alarming power cable to the electronic item of merchandise.
In other embodiments, the merchandise security system further comprises means for retracting the alarming power cord onto the reel, wherein the reel and the portion of the alarming power cord stored thereon are detachable from the means for retracting. The means for retracting the alarming power cord onto the reel may be biased by a biasing force to automatically retract the portion of the alarming power cord in the absence of a tensile pulling force that exceeds the biasing force. In one embodiment, the reel is rotatable for dispensing and collecting a predetermined portion of the alarming power cord. In addition, the first end of the alarming power cord may include a connector adapted to engage a power input port of the electronic item of merchandise. In one embodiment, the merchandise security system further comprises a strain relief block configured to be attached to the electronic item of merchandise, wherein a portion of the alarming power cord is configured to be routed through the strain relief block.
In one embodiment, a merchandise security system for an electronic item of merchandise is provided. The merchandise security system includes a continuous alarming power cord comprising at least one electrical conductor, wherein the alarming power cord has a first end including a connector adapted to engage a power input port of the electronic item of merchandise. The merchandise security system also includes a rotatable reel connected to a second end of the alarming power cord that is adapted for dispensing and collecting at least a portion of the alarming power cord thereon. The merchandise security system further includes monitoring circuitry in electrical communication with the alarming power cord.
According to another embodiment, a method for securing an electronic item of merchandise from theft is provided. The method may include electrically connecting a first end of a continuous alarming power cord to the electronic item of merchandise, wherein a second end of the alarming power cord is connected to a reel for storing at least a portion of the alarming power cord thereon. The method may also include electrically coupling the second end of the alarming power cord to a power source such that an electrical signal is provided to the alarming power cord, wherein an interruption in the electrical signal is detectable by monitoring electronics.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an environmental perspective view of a merchandise security system including a retractable alarming power cord and a rotatable reel according to the invention.
FIG. 2 is an exploded perspective view of a merchandise security system according to another embodiment of the present invention.



DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
The accompanying drawing figures, wherein like reference numerals denote like elements throughout the various views, illustrate embodiments of a merchandise security system for providing power and/or security to an item of merchandise. By way of example and not limitation, the item of merchandise may be an electronic device, such as a mobile (e.g. cellular) telephone, media player, handheld game console, personal data assistant (PDA), global positioning satellite (GPS) device, handheld digital camera or video recorder, tablet computer, e-reader and the like, that requires electrical power for a potential purchaser to operate before making a decision whether to purchase the merchandise while the item is being displayed in a display area of a retail store and protected from theft by the merchandise security system.
Embodiments of the present invention are directed to a merchandise security system for protecting an electronic item of merchandise from theft, while providing power to the merchandise. In one embodiment, the merchandise security system includes an alarming power cord adapted for electrical connection to a power input port of the item of merchandise and a reel for retractably storing at least a portion of the alarming power cord. The alarming power cord may be electrically coupled to a power cable extending between a powered alarm module and a core portion of the reel. Power from the alarm module may be transferred to the alarming power cord by a conventional electrical connector (e.g. RJ type plug and socket), or alternatively, by induction via, for example, a transformer.
FIG. 1 shows a merchandise security system 10 according to one embodiment of the invention including an alarming power cord (also commonly referred to as an “alarming pigtail”) 12 that is retractably wound on a rotatable reel 14, such that at least a portion of the alarming power cord is retractable onto the reel. The rotatable reel 14 is configured to dispense and collect a predetermined portion of the alarming power cord 12 and is biased to automatically retract the alarming power cord onto the reel in a known manner when a potential purchaser returns an item of merchandise M to a display support S, such as a stand, counter or the like. As such, the rotatable reel functions in the same or similar manner as a conventional recoiler or retractor of the type commonly employed with a retail merchandise display system. As shown in FIG. 1, the rotatable reel 14 and the means for retracting R the alarming power cord 12 on the reel may be separate such that the reel and the alarming power cord are detachable from the means for retracting to remove and replace the alarming power cord with a different alarming power cord configured for use with a different item of merchandise M.
In one embodiment, the alarming power cord 12 comprises at least one conductor (e.g., two conductors) for providing power at an appropriate current and/or voltage to the electronic item of merchandise M. As such, the alarming power cord 12 has a relatively small platform and is flexible relative to a mechanical security cable or a multi-conductor electrical power cable of the type disclosed in U.S. Pat. No. 6,799,994. The free end of the alarming power cord 12 may comprise an electrical connector 13, such a conventional micro-USB type power connector or a 30-pin Apple type power connector, adapted to engage a power input port P of the electronic item of merchandise M. If desired, a portion of the alarming power cord 12 adjacent the free end may be routed through an appropriately sized channel formed in a strain relief block 16 adapted to be attached to a surface of the electronic item of merchandise M, for example by a pressure sensitive adhesive (PSA). The strain relief block 16 prevents the electrical connector 13 of the alarming power cord 12 from being removed, disconnected or dislodged from the power input port P of the electronic item of merchandise M when tension is applied to the alarming power cord during extension and retraction of the alarming power cord from the reel 14 by a potential purchaser examining and/or operating the item of merchandise.
The other end of the alarming power cord 12 may terminate adjacent a central hub 15 of the rotatable reel 14. In one embodiment, the alarming power cord 12 terminates in an electrical transformer 17 comprising a coiled spool of wire. Alternatively, the alarming power cord 12 may terminate in a conventional electrical connector, such as a registered jack (RJ) type plug or socket. The merchandise security system 10 may further comprise a power cable 20 that extends between an alarm/power module 30 and the central hub 15 of the rotatable reel 14 to electrically connect the alarm/power module to the alarming power cord 12. Likewise, the end of the power cable 20 adjacent the hub 15 of the reel 14 may terminate in an electrical transformer 27 comprising a coiled spool of wire. Alternatively, the end of the power cable 20 may terminate in an electrical connector that is adapted to electrically couple the power cable 20 to the alarming power cord 12, such as a compatible registered jack (RJ) socket or plug. Regardless, the power cable 20 provides an electrical signal, including a power signal, to the alarming power cord 12 for charging and/or powering the electronic item of merchandise M via the electrical connector 13 and the power input port P of the item of merchandise. The alarm/power module 30 comprises monitoring electronics 32 that monitor the electrical signal in the power cable 20 and the alarming power cord 12 to determine whether the electrical signal has been interrupted, for example, by disconnecting the alarming power cord from the power input port P of the item of merchandise M, or by electrically decoupling the alarming power cord 12 from the power cable 20 at the central hub 15 of the rotatable reel 14, or by cutting/severing the alarming power cord 12 or the power cable 20 at any point between the alarm/power module 30 and the item of merchandise M. In the event that the electrical signal is interrupted, the alarm/power module 30 may activate an audible and/or a visible alarm 34 to alert store personnel to a potential theft of the electronic item of merchandise M. The alarm/power module 30 may be electrically connected to an external power supply (not shown), such as a standard 110 Volt Alternating Current (AC) outlet, or alternatively, may include an internal power supply, such as a conventional rechargeable battery 36, for providing power to the electronic item of merchandise M through the power cable 20 and the alarming power cord 12. Furthermore, the alarm/power module 30 may comprise voltage regulating electronics 38 adapted to convert the voltage and/or current provided by the power supply to an appropriate voltage and/or current for operating the electronic item of merchandise M.
It is important to note that the merchandise security system 10 comprises an alarming power cord 12 that extends continuously from the power input port P of the electronic item of merchandise M to an electrical coupling (e.g. 17, 27) disposed at the central hub 15 of the rotatable reel 14. Accordingly, the alarming power cord 12 does not comprise a first cable configured for electrical connection to a second cable selected from a plurality of adapter cables to provide an appropriate operating voltage and/or current to the electronic item of merchandise M. Furthermore, the alarming power cord 12 may not be in direct wire-to-wire electrical communication with the power cable 20 since the alarming power cord and the power cable may each comprise a corresponding electrical transformer 17, 27 formed by a coiled spool of wire. In addition, the merchandise security system 10 of the present invention further comprises a strain relief block 16 for preventing the electrical connector 13 at the free end of the alarming power cord 12 from being removed, disconnected or dislodged from the power input port P of the electronic item of merchandise M.
FIG. 2 shows another embodiment of a merchandise security system 40 according to the invention including an alarming power cord (also commonly referred to as an “alarming pigtail”) 42 that is retractably wound on a rotatable reel 44, such that at least a portion of the alarming power cord is retractable onto the reel. The rotatable reel 44 is configured to dispense and collect a predetermined portion of the alarming power cord 42 and is biased to automatically retract the alarming power cord in a known manner when a potential purchaser returns an item of merchandise M to a display support, such as a stand, counter or the like. As such, the rotatable reel functions in the same or similar manner as a conventional recoiler or retractor of the type commonly employed with a retail merchandise display system. As shown in FIG. 2, the merchandise security system 40 further comprises a generally hollow display stand 50 configured for housing the rotatable reel 44 and for providing electrical power to the alarming power cord 42, and consequently, to the item of merchandise M. The display stand 50 comprises means for retracting the alarming power cord 42 onto the reel 44 in the form of a torsion spring 52 fixed at one end to the display stand and attached at the other end to a hub 54. Hub 54 has an exterior shape (e.g. rectangular, square, polygonal, etc.) that corresponds to a center sprocket 45 on the rotatable reel 44 such that the hub of the display stand 50 engages the center sprocket of the reel when the reel is inserted into the hollow interior of the display stand with the extensible and retractable portion of the alarming power cord 42 wound onto the reel 44.
The free end of the alarming power cord 42 may comprise an electrical connector 43, such a conventional micro-USB type power connector or a 30-pin Apple type power connector, adapted to engage a power input port P of an electronic item of merchandise M. If desired, a portion of the alarming power cord 42 adjacent the free end may be routed through an appropriately sized channel formed in a strain relief block 46 adapted to be attached to an exterior surface of the electronic item of merchandise M, for example, by a pressure sensitive adhesive (PSA) such as double sided tape. The strain relief block 46 prevents the electrical connector 43 of the alarming power cord 42 from being removed, disconnected or dislodged from the power input port P of the electronic item of merchandise M when tension is applied to the alarming power cord during extension and retraction of the alarming power cord from the reel 44 by a potential purchaser examining and/or operating the item of merchandise. An opening or recess 56 is formed in display stand 50 for permitting the portion of the alarming power cord 42 to be extended and retracted from the reel 44 within the hollow interior of the display stand 50. When a potential purchaser picks up the item of merchandise M, reel 44 rotates on hub 54 and torsion spring 52 is wound (i.e. tightened) as the alarming power cord 42 is unwound from the reel. As a result, reel 44 is biased by the wound torsion spring 52 to automatically retract the portion of the power alarming cord onto the reel as the potential purchaser returns the item of merchandise M to the display stand 50. As shown, the strain relief block 46 may optionally comprise one or more magnets 48 for engaging corresponding magnets 58 provided on the display stand 50 to position the item of merchandise M in a desired orientation on the display stand 50.
The merchandise security system 40 further comprises a power cable 60 that extends between a power source, such as a power strip, terminal or the like, that is electrically connected to a conventional 110 Volt Alternating Current (AC) power outlet. Alternatively, the power cable 60 may be directly connected to the power outlet. Regardless, the power cable 60 is electrically coupled to an electrical circuit, for example a printed circuit board (PCB), 62 disposed within the hollow interior of the display stand 50. As shown, PCB 62 may have electrical leads 64 that terminate in electrical terminals 66 configured to engage and electrically couple with electrical traces 67 formed on the interior surface of a door 51 of the display stand 50. Door 51 is adapted to be opened to receive reel 44 within the hollow interior of the display stand 50 and to be closed to retain the reel within the interior of the display stand. Electrical traces 67 are configured to electrically couple with corresponding electrical traces 47 provided on an exterior surface of reel 44. In turn, the electrical traces 47 of the reel 44 electrically couple with the electrical conductors disposed within the alarming power cord 42. As such, the power cable 60 is operable to provide electrical power to the item of merchandise M. As illustrated, the electrical traces 67 may be circular in configuration to facilitate electrical communication as the reel 44 rotates.
As previously described, the power cable 60 provides an electrical signal, including a power signal, to the alarming power cord 42 for charging and/or powering the electronic item of merchandise M via the electrical connector 43 and the power input port P of the item of merchandise. The merchandise security system 40 comprises monitoring electronics on the PCB 62 that monitor the electrical signal in the power cable 60 and the alarming power cord 42 to determine whether the electrical signal has been interrupted, for example, by disconnecting the alarming power cord from the power input port P of the item of merchandise M, or by electrically decoupling the alarming power cord 42 from the power cable 60 at the electrical traces 47, 67 of the rotatable reel 44 and the display stand 50, respectively, by opening the door 51, or by cutting/severing the alarming power cord 42 or the power cable 60 at any point between the power source and the item of merchandise M. In the event that the electrical signal is interrupted, PCB 62 may activate an audible and/or a visible alarm to alert store personnel to a potential theft of the electronic item of merchandise M, as previously described.
It is important to note that the merchandise security system 40 comprises an alarming power cord 42 that extends continuously from the power input port P of the electronic item of merchandise M to an electrical coupling (e.g. electrical traces 47, 67) disposed adjacent the central socket 45 of the rotatable reel 44 and the hub 54 of the display stand 50. Accordingly, the alarming power cord 42 does not comprise a first cable configured for electrical connection to a second cable selected from a plurality of adapter cables to provide an appropriate operating voltage and/or current to the electronic item of merchandise M. Furthermore, the alarming power cord 42 is not in direct wire-to-wire electrical communication with the power cable 60 since the alarming power cord and the power cable are separated by PCB 62, electrical leads 64, electrical terminals 66 and electrical traces 67, 47. In addition, the merchandise security system 40 of the present invention further comprises a strain relief block 46 for preventing the electrical connector 43 at the free end of the alarming power cord 42 from being removed, disconnected or dislodged from the power input port P of the electronic item of merchandise M.
The foregoing has described one or more embodiments of a merchandise security system. Embodiments according to the invention have been shown and described herein for purposes of illustrating and enabling the best mode of the invention. Those of ordinary skill in the art, however, will readily understand and appreciate that numerous variations and modifications of the invention may be made without departing from the spirit and scope of the invention. Accordingly, all such variations and modifications are intended to be encompassed by the appended claims.

## Claims

1. A merchandise security system for an electronic item of merchandise comprising:
a continuous alarming power cord comprising at least one electrical conductor, the alarming power cord having a first end adapted to be electrically connected to the electronic item of merchandise;
a reel for receiving a second end of the alarming power cord and adapted for storing at least a portion of the alarming power cord thereon; and
monitoring circuitry in electrical communication with the alarming power cord and configured to detect an interruption in an electrical signal provided to the alarming power cord.

2. The merchandise security system according to claim 1, further comprising:
an alarm module comprising the monitoring circuitry; and
a power cable having a first end electrically coupled to the second end of the alarming power cord and a second end electrically connected to the alarm module.

3. The merchandise security system according to claim 2, wherein the second end of the alarming power cord and the first end of the power cable each terminate in a transformer comprising a coiled spool of wire configured to electrically connect the alarming power cord and the power cable.

4. The merchandise security system according to claim 3, wherein the alarming power cord and the power cable are not in direct wire-to-wire electrical communication.

5. The merchandise security system according to claim 2, wherein the reel comprises a central hub portion for receiving the second end of the alarming power cord, and wherein the first end of the power cable is electrically coupled to the second end of the alarming power cord at the central hub portion of the reel.

6. The merchandise security system according to claim 2, wherein the alarm module is configured to generate an audible and/or a visible alarm in response to interruption of the electrical signal.

7. The merchandise security system according to claim 2, wherein the second end of the alarming power cord comprises a connector and the first end of the power cable comprises a socket or plug configured to mate with the connector.

8. The merchandise security system according to claim 1, further comprising a display stand for housing the reel and providing electrical power to the alarming power cord.

9. The merchandise security system according to claim 8, wherein the electronic item of merchandise is configured to be removably secured on the display stand.

10. The merchandise security system according to claim 8, wherein each of the reel and the display stand comprises electrical traces configured to electrically couple with one another for providing electrical power through the alarming power cable to the electronic item of merchandise.

11. The merchandise security system according to claim 1, further comprising means for retracting the alarming power cord onto the reel, wherein the reel and the portion of the alarming power cord stored thereon are detachable from the means for retracting.

12. The merchandise security system according to claim 11, wherein the means for retracting the alarming power cord onto the reel is biased by a biasing force to automatically retract the portion of the alarming power cord in the absence of a tensile pulling force that exceeds the biasing force.

13. The merchandise security system according to claim 1, wherein the reel is rotatable for dispensing and collecting a predetermined portion of the alarming power cord.

14. The merchandise security system according to claim 1, wherein the first end of the alarming power cord comprises a connector adapted to engage a power input port of the electronic item of merchandise.

15. The merchandise security system according to claim 1, further comprising a strain relief block configured to be attached to the electronic item of merchandise, wherein a portion of the alarming power cord is configured to be routed through the strain relief block.

16. The merchandise security system according to claim 1, wherein the alarming power cord does not comprise a second cable selected from a plurality of adapter cables to provide an appropriate operating voltage and/or current to the electronic item of merchandise.

17. A merchandise security system for an electronic item of merchandise comprising:
a continuous alarming power cord comprising at least one electrical conductor, the alarming power cord having a first end including a connector adapted to engage a power input port of the electronic item of merchandise;
a rotatable reel connected to a second end of the alarming power cord and adapted for dispensing and collecting at least a portion of the alarming power cord thereon; and
monitoring circuitry in electrical communication with the alarming power cord.

18. The merchandise security system according to claim 17, wherein the alarming power cord does not comprise a second cable selected from a plurality of adapter cables to provide an appropriate operating voltage and/or current to the electronic item of merchandise.

19. A method for securing an electronic item of merchandise from theft, the method comprising:
electrically connecting a first end of a continuous alarming power cord to the electronic item of merchandise, wherein a second end of the alarming power cord is connected to a reel for storing at least a portion of the alarming power cord thereon; and
electrically coupling the second end of the alarming power cord to a power source such that an electrical signal is provided to the alarming power cord, wherein an interruption in the electrical signal is detectable by monitoring electronics.