Abstract: A payment terminal has a clock management unit for providing clock signals to components of the payment terminal. The payment terminal also has a wireless communication interface for communicating wireless signals. A processing unit of the payment terminal may monitor operation of a wireless communication interface of the payment terminal and, when the payment terminal is communicating wirelessly, modify an initial clock signal provided to one or more components of the payment terminal that emit RF noise to modify a frequency at which the RF noise occurs. When the payment terminal is no longer transmitting, the processing unit may provide the initial clock signal to the RF noise source.

Abstract: A payment terminal has a clock management unit for providing clock signals to components of the payment terminal. The payment terminal also has a wireless communication interface for communicating wireless signals. A processing unit of the payment terminal may monitor clock signals provided by the clock management unit and determine a phase and frequency difference between a clock signal provided to a component producing RF noise and a clock signal provided to a wireless communication interface of the payment terminal. When RF noise present in the received wireless signal falls below a threshold, the processing unit may sample the received wireless signal.

Abstract: Embodiments of the system can relate to information tracking of items and/or other objects associated with the items. Some embodiments can include information tracking of the use of the items and/or objects. Some embodiments can include the use of markers associated with the items. At least one of the markers may be modifiable. In at least one embodiment, a marker can be configured to generate a certain detectable property (e.g., emit a signal, have a certain pattern, have a certain color, have a certain magnetic property, etc.). During use of the item and/or object associated with the item, the marker can be used to generate tracking information. Upon changing its detectable property, the marker can be caused to generate different and/or additional tracking information.

Abstract: A device may include one or more sources such as circuit elements and electrical components that function as sources for physically unclonable function (PUF) data. PUF data may be acquired from the PUF sources and one or more error correction codes may be applied to the PUF data. The resulting PUF values may be used to generate information that may be used for device security operations such as encryption and tamper detection.

Abstract: An electronic device may include a printed circuit board having a physically unclonable function (PUF) source. The electronic device may also include an integrated circuit (IC) chip positioned on the printed circuit board, and the first PUF source may be embedded in or formed on the printed circuit board external to the IC chip. The IC chip has processing circuitry that is configured to determine PUF data based on the PUF source. The processing circuitry is further configured to determine a cryptographic key or authentication token based on the PUF data and to perform at least one secure operation using the cryptographic key or authentication token.

Abstract: A device may include one or more sources such as circuit elements and electrical components that function as sources for physically unclonable function (PUF) data. PUF data may be acquired from the PUF sources and one or more error correction codes may be applied to the PUF data. The resulting PUF values may be used to generate information that may be used for device security operations such as encryption and tamper detection.

Abstract: A point-of-sale (POS) device includes a processor, a battery, a transaction object reader, a printer with a printer controller, and optionally a temperature sensor. The processor determines a present power discharge capability rate of the battery, optionally based on a temperature measured by the temperature sensor. The processor also calculates a first estimated power draw rate based on a first setting value for at least one of the components of the POS device, such as the printer. If the first estimated power draw rate is dangerously close to the present power discharge capability rate of the battery, a second estimated power draw rate is calculated based on a second setting value for the one or more components. If the second estimated power draw rate is no longer dangerously close to the present power discharge capability rate of the battery, the components are set to the second settings value.

Abstract: Disclosed is a technique for prevention of false tamper positives experienced by an electronic device by use of a custom profile. The technique includes electrically coupling a conductive trace to a tamper monitoring component for use in tamper detection on the trace. Upon occurrence of the threshold voltage on the conductive trace, a tamper event is detected. A second conductive trace is monitored over time to determine behavior of the device. If the device is likely to trigger tamper responses in response to change in environment, the threshold voltage is changed to tamper positives triggered by environment.

Abstract: A point-of-sale (POS) device includes a processor, a battery, a transaction object reader, a printer with a printer controller, and optionally a temperature sensor. The processor determines a present power discharge capability rate of the battery, optionally based on a temperature measured by the temperature sensor. The processor also calculates a first estimated power draw rate based on a first setting value for at least one of the components of the POS device, such as the printer. If the first estimated power draw rate is dangerously close to the present power discharge capability rate of the battery, a second estimated power draw rate is calculated based on a second setting value for the one or more components. If the second estimated power draw rate is no longer dangerously close to the present power discharge capability rate of the battery, the components are set to the second settings value.

Abstract: A NFC object reader's NFC antenna system configured to dynamically change an element of the NFC antenna system to maintain the NFC antenna system's antenna default resonant frequency. The NFC antenna system can be configured to include a tuning subsystem, integrated with sensors to trigger tuning of NFC antenna system's antenna.

Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a physical interface such as a chip card interface. The monitoring system can establish local tamper criteria including a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card is present in the slot. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the local test criteria can indicate that a tamper attempt at the chip card interface may have occurred. The payment processing device may also communicate test results to a server for further testing, or for an update of the local test criteria.

Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a chip card interface. The monitoring system can establish a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card 14 is present in the slot 21. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the baseline can indicate that a tamper attempt at the chip card interface may have occurred. If a tamper attempt is determined by the monitoring system, a remedial or corrective action can be taken.

Abstract: A crane-style arcade game has an enclosed prize chamber wherein the prizes comprise RFID tags with assigned point values. an RFID reader reads the RFID tag on a captured prize as the captured prize is moved past the RFID reader. A recording device is connected to the RFID reader to record the assigned point values of the RFID tags of captured prizes read by the RFID reader. A rotary table mechanism is used to move a captured prize past the RFID reader and then to a storage area below the enclosed prize chamber.

Abstract: A NFC object reader's NFC antenna system configured to dynamically change an element of the NFC antenna system to maintain the NFC antenna system's antenna default resonant frequency. The NFC antenna system can be configured to include a tuning subsystem, integrated with sensors to trigger tuning of NFC antenna system's antenna.

Abstract: Embodiments of the Dripper Bag for Attracting Game and Fish are comprised of a pouch, where the pouch forms a sombrero hang hole, a duel core tin tie removably affixed to the side of the pouch, a spout, a foil tamper seal, and a spout cap, and where on the bottom of the dripper bag is formed three selections of areas to puncture with varying flow rate and therefore varying total effluent time.

Abstract: Disclosed is a technique for prevention of false tamper positives experienced by an electronic device by use of a custom profile. The technique includes application of sensors of the device to collect data from the environment. Further, the device determines whether an event causes accidental triggering of tamper response as the environmental data varies. Accordingly, the conditions triggering a tamper response are dynamically changed as the environmental data changes.

Abstract: Approaches provide for managing a multiple battery system in an electronic device. In particular, various examples enable a component, or combination or components, such as an electronic switching component to detect a state of a power source to manage switching between at least two power sources. For example, battery protection circuitry can be configured to detect that a voltage of a rechargeable battery has dropped to a threshold voltage, and upon such determination, activate a battery protection state which can result in a non-linear drop off in voltage coming from the rechargeable battery. An electronic switch can detect the non-linear drop off in voltage and can disconnect the rechargeable battery from at least one device component and connect a non-rechargeable battery to the at least one device component to provide backup power to at one component.

Abstract: A payment terminal can have a near field communication (NFC) circuit to permit the payment terminal to accept an NFC payment transaction from a payment device of a customer. The NFC circuit can have a first set of components that are located on a printed circuit board in the base of the payment terminal and a second set of components that are mounted on a flex circuit in another region of the payment terminal. The flex circuit can be coupled to the printed circuit board and have an extended portion with a plurality of traces to communicate transmit and receive data between the first set of components and the second set of components. The plurality of traces on the extended portion can have a predetermined length that is greater than or equal to 2.5% of the propagation-medium-specific wavelength of the carrier signal communicated over the traces.

Abstract: A merchant device has a USB interface that includes an ID pin and a voltage pin. When the merchant device receives an oscillating signal at the ID pin, it connects the voltage pin to a power supply of the merchant device. The merchant device also includes a download switch coupled to the ID pin. When it is desired to reprogram a device connected by the USB interface, the download switch provides a programming voltage to the ID pin.

Abstract: A technique for tamper protection of incoming data signal to an electronic device is disclosed. An intentional interference signal is generated and modulated onto the incoming data signal as one composite input signal, to prevent unauthorized acquisition of valid data from the incoming data signal. The magnitude of the interference signal is adjusted to correspond to the magnitude of the incoming data signal, thereby preventing an attacker from properly differentiating the two different signals and/or decoding the valid data from the composite input signal. Once the composite input signal is safely received within the device, the interference signal can be filtered out in either analog mode or digital mode.