Systems for monitoring proximity to prevent loss or to assist recovery
a technology of proximity monitoring and proximity detection, applied in the direction of electric signalling details, wireless commuication services, instruments, etc., can solve the problems of not allowing users to quickly recover lost devices, preventing users from losing their peds, and not allowing users to automatically and/or instantaneously recover lost devices
Inactive Publication Date: 2009-08-20
OPTIMA DIRECT LLC
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Problems solved by technology
This method does not allow users to quickly recover their lost devices.
These methods do not allow users to automatically and / or instantaneously recover their lost devices.
So, if the PED is already removed from its retaining device for use or the retaining device and PED are left behind together or move out of a desired range, this apparatus does not protect users from losing their PEDS.
This system is unreliable and unfit for use as a proximity alarm because paging consumes 40 mA, a rate that would inconvenience the user by requiring an expensive and / or heavy battery or frequent recharging.
Further, paging is often blocked by human bodies, which can result in false alarms when a page does not reach the first device.
This system and method have been tested, and not found to a reliable way for indicating that a mobile phone has left a proximity range due to production of false positives.
U.S. Patent application publication 20020080036 discloses the use of a mobile network for tracking the position of a plurality of objects and displaying them on a map; the apparatus in this patent requires expensive transceivers, and has a significant time delay for indicating object is out of range.
The system is difficult to commercialize because of the large variety of batteries on the market.
Furthermore, the transmitter / receiver system needs an antenna, and it would be a challenge to install an antenna inside the battery or on its surface as that would compromise its performance.
It requires a bulky transceiver that interrogates all the RFID tags.
It is not convenient for portable applications inter alia.
This system cannot be used with existing phones and requires cell phone manufacturers to modify their designs.
However, such an analog RF system is capable of being undermined by other interfering devices.
While the manufacturer may vary the signal frequency used by different pairs of transmitters and receivers, it is possible for a receiver in a first pair to detect a transmitter from a second pair, thus risking the possibility that the first receiver would not detect the first transmitter going out of range, which could not only mean that a child being monitored goes out of range without an alarm but that the parents would have a false sense of security that the child was within range and so consequently they do not look after the child as much they may otherwise have without the system.
Further, when a transmitter or receiver is lost, it is not likely that a replacement can be readily obtained that has a matching fixed frequency transmission or reception range, despite the possibility of an interfering transmitter being encountered at random in use.
The lack of security on these RF type transmitter receiver pairs means that a child or pet abductor can monitor the frequency of a first transmitter and program a second transmitter that can be used as a decoy to defeat the system.
Method used
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[0032]The following provides further details of the present inventions summarized above and illustrated in a schematic fashion in the Figures. In accordance with a first aspect of the present inventions, FIG. 1A is a schematic illustration of a portable loss prevention alarm 10 comprising a Bluetooth system 20 operatively connected with at least one activation switch 13, a visual indication center (or display) 16, a power store 24, an alarm center 25 and an antenna 14. Display 16 can be used to indicate the status of the device, such as whether it is powered, if the Bluetooth transceiver system (BT) is discoverable or non-discoverable, if the BT is pairing or paired with another BT, the BT mode, inter alia.
[0033]In a preferred embodiment, the components of the portable loss prevention alarm 10 can fit in a volume less about 60×30×10 mm or 18 cc, so that alarm 10 can fit into a housing having an interior with dimensions of 60×30×10 mm or no more than 18 cc. In another embodiment, ala...
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A portable proximity alarm apparatus comprising a Bluetooth system and an alarm monitors the presence of a portable electronic device equipped with a compatible transceiver within range and alarms when that device leaves its range. On detecting disconnection, the proximity alarm automatically tries to reconnect. A portable proximity alarm apparatus with an optional voice mode allows to additionally use the unit as a headset when an earpiece is folded. A portable proximity alarm apparatus with relay functionality allows using a Bluetooth headset and proximity alarm functions unobtrusively on most mobile phones.
Description
PRIORITY[0001]The present application is a Continuation-In-Part (“CIP”) of pending U.S. patent application Ser. No. 12 / 034,102, filed Feb. 20, 2008.FIELD OF THE INVENTION[0002]The present inventions relate to devices that detect and / or prevent loss via proximity detection system alarms, and more specifically relates to devices that monitor the presence of at least one wireless communication device and that issue an alarm when said device is not within a desired proximity.BACKGROUND[0003]Portable electronic devices such as cellular telephones, personal digital assistants (PDAs), wireless email devices, instant messaging devices, pagers, portable compact disk (CD) players, portable MP3 players, and others are often forgotten, lost, or stolen (a “PED” includes any portable device that can be used for communication, performing intellectual and / or physical work, and / or entertainment). Existing wireless device loss detection approaches focus primarily on remotely accessing a device after ...
Claims
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IPC IPC(8): H04Q7/20G08B21/24
CPCG08B21/0277G08B13/1427
Inventor AYED, MOURAD BEN
Owner OPTIMA DIRECT LLC
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