A window or door position detector includes an RFID tag attachable to a window or a door and a transceiver. The transceiver emits an activating signal to the tag. The tag, in turn, responds with an identifying RF signal indicative of a predetermined position of the window or the door. The detector includes a transceiver that can communicate with both the tag and a displaced monitoring system control panel.

Systems and methods to selectively attach and control antennas via diodes. In one embodiment, a system includes: a reader having a plurality of reader antennas of different polarizations to transmit radio frequency signals; and at least one radio frequency device. The radio frequency device includes: a plurality of tag antennas of different polarizations; a plurality of diodes coupled to the plurality of tag antennas respectively; a receiver coupled to the plurality of diodes to receive the radio frequency signals from the tag antennas when the diodes are forward biased; and a set of one or more current controllers coupled to the plurality of diodes. In a receiving mode the controllers selectively forward bias the diodes to receive the signals from the reader. In a transmitting mode the controllers selectively change the state of the tag antennas to transmit data via backscattering the radio frequency signals.

A payment card (e.g., credit and/or debit card) is provided with a magnetic emulator operable to act as a magnetic stripe read-head detector and a data transmitter. A multiple layer flexible PCB may be fabricated to include multiple magnetic emulators. An emulator may include a coil that includes magnetic, ferromagnetic, or ferromagnetic, material in the coil's interior. Coils may be associated with zones. As a read-head is detected to move from zone-to-zone, coils may be activated to transmit information in those zones.

Communication device (T1) comprisingAn antenna (A1) and physical circuitry (PHY) for receiving a poll command (PC) from a second communication device (T2).A plurality of entities (D1, D2, D3 . . . Dn) emulating NFC devices,An arrangement for deciding, for each entity of said plurality of entities, if a response should be sent and if so sending a response (LF1, LF2, LF3 . . . LFn) to said second communication device (T2), containing information related to the respective NFC device.

A system and method for tagging, organizing and tracking evidence during an investigation has mobile communication devices that collect physical, photographic and interpretive evidence, such as materials from a crime scene, interviews with witnesses and an establishing shot of the crime scene or other areas or persons of interest for surveillance operations. The mobile devices can be in two-way communication with a central server computer which is in communication with other mobile devices. The mobile device users can enter descriptive information about the evidence into the mobile devices while other information pertaining to the evidence may be obtained from other sources and automatically provided to the users for their review and possible incorporation into the record. Each mobile device can store information in memory and communicate the information to the central server computer where it may then be made available to groups of mobile device users.

Various embodiments relate to tags, methods of using tags, systems, and methods of using systems. Various embodiments may be suitable for identifying a human or an animal. Various embodiments may provide mother-infant matching and cot-infant matching for both single and multiple births; monitoring of the location, movement, and status of the tags; detection of tampering and unauthorized removal of infant tags; and organizing of tags.

A payment card (e.g., credit and/or debit card) is provided with a magnetic emulator operable of communicating information to a magnetic stripe reader. Information used in validating a financial transaction is encrypted based on time such that a validating server requires receipt of the appropriate encrypted information for a period of time to validate a transaction for that period of time. Such dynamic information may be communicated using such an emulator such that a card may be swiped through a magnetic stripe readeryet communicate different information based on time. An emulator may receive information as well as communicate information to a variety of receivers (e.g., an RFID receiver).

A payment card or other device (e.g., mobile telephone) is provided with a magnetic emulator operable to communicate data to a magnetic stripe read-head. A user can utilize buttons located on the card to perform activities that would otherwise be performed at an ATM, payment card reader, or by a waitress. A user can provide instructions on a card to accelerate a transaction. The information a user enters can be communicated to a point-of-sale device. For example, a user can enter into his/her card that the user desires $100 withdrawal from a checking account. The user can also enter his/her PIN into the card. The user can swipe his/her card into an ATM and instantly be provided with the desired $100.

A transaction card construction and computer-implemented methods for a transaction card are described. The transaction card has vector-formatted visible information applied by a laser machining system. In some embodiments, systems and methods are disclosed for enabling the sourcing of visible information using a scalable vector format The systems and methods may receive a request to add visible information to a transaction card and capture an image of the visible information. The systems and methods may capture data representing the image. The systems and methods may also determine an ambient color saturation of the image. Further, systems and methods may translate the image based on the ambient color saturation of the image. The systems and methods may also map the translated image to a bounding box and convert the mapped image into vector format. In addition, the systems and methods may provide the converted image to a laser machining system.

A method and system for communicating estimated blood loss parameters of a patient to a user, the method comprising: receiving data representative of an image, of a fluid receiver; automatically detecting a region within the image associated with a volume of fluid received at the fluid receiver, the volume of fluid including a blood component; calculating an estimated amount of the blood component present in the volume of fluid based upon a color parameter represented in the region, and determining a bias error associated with the estimated amount of the blood component; updating an analysis of an aggregate amount of the blood component and an aggregate bias error associated with blood loss of the patient, based upon the estimated amount of the blood component and the bias error; and providing information from the analysis of the aggregate amount of the blood component and the aggregate bias error, to the user.