Abstract: Embodiments of the system can relate to a popcorn dispenser system that may be configured for tracking popcorn and/or other items associated with the dispensement of popcorn. Some embodiments can include the use of markers to generate tracking information. Some embodiments can include use of modifiable markers to generate additional tracking information. The popcorn dispenser system can include devices that facilitate producing popped corn on-demand, which may include providing popped corn from un-popped kernels in specified amounts, at specified times, and/or with specified flavors.

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 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 object reader configured to read data from NFC or EMV enabled payment objects. The payment device includes a NFC antenna, a boost converter (voltage regulator) chip. A first feedback circuit is connected to the NFC antenna and the feedback pin of the boost converter chip. The boost converter chip regulates a first voltage provided to the NFC antenna for the NFC antenna to modulate a field. A second feedback circuit includes a microcontroller with an ADC input and a DAC output. ADC input is connected to NFC antenna, and DAC is connected to the feedback pin of the boost converter chip. The microcontroller receives the voltage at the ADC input and controls the DAC output to transition based on the value of the ADC input.

Abstract: A payment object reader configured to delay reading data of an integrated circuit payment object in the payment object slot of the payment object reader until the rest of the payment object reader is ready to read data off of the integrated circuit payment object. The payment object reader can be configured to include a microcontroller configured to monitor and manage the payment object contact switch and the integrated circuit payment object interface of the payment object slot of the payment object reader.

Abstract: A merchant terminal has two USB interfaces. Each USB interface includes a voltage pin and an ID pin. The merchant terminal also has two power supply switches, each of which selectively couples a respective one of the voltage pins to a merchant terminal power supply. Each power supply switch is responsive to either a power supply voltage received at an associated voltage pin or an oscillating signal received at an associated ID pin.

Abstract: Aspects of the subject disclosure provide a reader device for managing operation of an automatic gain control (AGC) sub-circuit on a host device computing device. In some implementations, a reader device of the subject technology can include a controller, a noise generator, noise coupling circuitry, and a 3.5 mm audio plug including an audio bus that is configured for insertion into a headphone port of a host device, such as a smart phone or tablet computer. Upon connection of the reader device to the host computing device, the reader device can provide an intentional noise signal to the host device via a signal path where the intentional noise signal is configured to establish a substantially stable gain amount at the AGC sub-circuit.

Abstract: Disclosed is a rechargeable payment card that can harvest charging energy from card readers. The rechargeable payment card includes a card body and electrical circuitry, a rechargeable energy storage device and a reader interface. The electrical circuitry and the rechargeable energy storage device are attached to the card body. At least a portion of the electrical circuitry needs power to operate when the card is not coupled to an external electrical energy source. The rechargeable energy storage device supplies power to said at least a portion of the electrical circuitry. The reader interface can draw an electrical current from a card reader when the card is coupled to the card reader via the reader interface. At least a portion of the drawn electrical current is used to charge the rechargeable energy storage device.

Abstract: A card reader for a point-of-sale system that is configured to accept both magnetic strip-type and integrated circuit (IC) chip-type payment cards. The card reader is a component of a point-of-sale system including a portable computing device in communication with the card reader that is configured to present a first graphical user interface (GUI) when a magnetic stripe-type card is detected and a second GUI when an IC chip-type card is detected in the card reader. The card reader comprises a slot configured to receive the payment card, a magnetic reading device and an IC chip reading device. The card reader also includes a discriminator contact disposed within the slot that is configured to conduct across a surface of a metal pad of the IC chip-type card prior to the CI chip reading device making contact with the IC chip.

Abstract: A method and apparatus is disclosed for protecting electronic devices from security breaches (e.g., in the form of DPA attacks) by managing input/output (I/O) pin states. The technique is particularly useful in financial applications in which data security related operations, such as those involving cryptography, are performed by payment card readers, and the power supplied to drive the operations are measured and analyzed by attackers to extract sensitive information. The technique prevents any external device from measuring the operation power by disabling the I/O pins. The I/O pins are set to a logic low at any given time a data security related operation is performed. As a result, no communication with the external environment is possible during the data security operation, and external power measurements by DPAs are prevented.

Abstract: Aspects of the subject disclosure provide a reader device for processing payment cards. The reader device is configured to harvest power from received audio signals, for example, from analog signals received on an audio bus, such as a standard 3.5 mm audio channel. In some implementations, a reader of the current technology includes a microcontroller configured to perform operations including receiving an audio signal from the host via the audio bus, analyzing the audio signal to determine when a voltage of the audio signal is negative and providing a reference signal to the power module, wherein the reference signal indicates time periods in which synchronous rectification is to be performed by the power module.

Abstract: Approaches provide for a mobile point-of-sale system configured to facilitate the transfer of funds between entities (e.g., customers and merchants). A card reader can include two different types of slots configured for conducting a financial transaction between entities. A first slot can allow for a magnetic stripe element of a card to be swiped. A second slot can include contact elements which allow the card to be “dipped in”. In this way, the device can receive a swipe and/or a “dipping” of a card into a respective slot for conducting a financial transaction.

Abstract: Disclosed is a technique for tamper detection in an electronic device by use of an internal power supply signal. The technique includes electrically coupling a conductive trace, in series via a resistor, to an internal power supply that supplies power to a security module within a processor of the device. The technique further includes electrically coupling the power supply to a detector for use in tamper detection on the trace. Upon occurrence of a short-circuit condition on the conductive trace, substantially all voltage of the local power supply is dropped across the resistor. As a result, the detector detects a drop in voltage below a predetermined threshold, and perceives such drop as a “collapse” of the internal power supply. The collapse of the power supply is indicative of a tampering event to the detector, which in response, outputs a signal to disable an operation of the security module.

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 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: Aspects of the subject disclosure provide a reader device for managing operation of an automatic gain control (AGC) sub-circuit on a host device computing device. In some implementations, a reader device of the subject technology can include a controller, a noise generator, noise coupling circuitry, and a 3.5 mm audio plug including an audio bus that is configured for insertion into a headphone port of a host device, such as a smart phone or tablet computer. Upon connection of the reader device to the host computing device, the reader device can provide an intentional noise signal to the host device via a signal path where the intentional noise signal is configured to establish a substantially stable gain amount at the AGC sub-circuit.

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.

Abstract: A card reader for a point-of-sale system that is configured to accept both magnetic strip-type and integrated circuit (IC) chip-type payment cards. The card reader is a component of a point-of-sale system including a portable computing device in communication with the card reader that is configured to present a first graphical user interface (GUI) when a magnetic stripe-type card is detected and a second GUI when an IC chip-type card is detected in the card reader. The card reader comprises a slot configured to receive the payment card, a magnetic reading device and an IC chip reading device. The card reader also includes a discriminator contact disposed within the slot that is configured to conduct across a surface of a metal pad of the IC chip-type card prior to the CI chip reading device making contact with the IC chip.

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: Aspects of the subject disclosure provide a reader device for managing operation of an automatic gain control (AGC) sub-circuit on a host device computing device. In some implementations, a reader device of the subject technology can include a controller, a noise generator, noise coupling circuitry, and a 3.5 mm audio plug including an audio bus that is configured for insertion into a headphone port of a host device, such as a smart phone or tablet computer. Upon connection of the reader device to the host computing device, the reader device can provide an intentional noise signal to the host device via a signal path where the intentional noise signal is configured to establish a substantially stable gain amount at the AGC sub-circuit.