Abstract: A pressure sensor comprises an optical source configured to illuminate the tissue of a user, and an optical sensor configured to measure reflected illumination from the tissue. A compute system is configured to output a pressure between a surface of the optical sensor and the tissue as a function of the measured reflected illumination.

Abstract: Systems, methods and computer program products are described herein that can automatically determine the number of functional rechargeable batteries within an electronic device that includes a plurality of rechargeable batteries without having to open up the electronic device to inspect the batteries. In an embodiment, an external computing device or the electronic device itself determines a measure of impedance associated with the plurality of rechargeable batteries based on a first voltage level of the plurality of rechargeable batteries obtained during a discharging state thereof and a second voltage level of the plurality of rechargeable batteries obtained during a charging state thereof and then determines the number of operational rechargeable batteries within the plurality of rechargeable batteries based on the measure of impedance.

Abstract: A system and method for a gaming chip identification system are disclosed. Briefly described, one embodiment comprises a plurality of gaming chips, each gaming chip operable to emit a respective unique electromagnetic signature in response to incident non-optical electromagnetic radiation, a computer-readable medium that stores information indicative of the electromagnetic signatures of at least a number of the plurality of gaming chips, and a processor-based system configured to verify that the electromagnetic signature from an interrogated gaming chip in an interrogation zone is a member of the plurality of gaming chips.

Abstract: Systems, methods and computer program products are described herein that can automatically determine the number of functional rechargeable batteries within an electronic device that includes a plurality of rechargeable batteries without having to open up the electronic device to inspect the batteries. In an embodiment, an external computing device or the electronic device itself determines a measure of impedance associated with the plurality of rechargeable batteries based on a first voltage level of the plurality of rechargeable batteries obtained during a discharging state thereof and a second voltage level of the plurality of rechargeable batteries obtained during a charging state thereof and then determines the number of operational rechargeable batteries within the plurality of rechargeable batteries based on the measure of impedance.

Abstract: Various embodiments relating to a battery isolation circuit for disconnecting a battery from a load are disclosed. In one embodiment, a battery isolation circuit includes a power switch, a protection circuit module (PCM), and a drive diverter. The power switch may be operatively intermediate a battery and a load. The PCM may be operatively connected to the power switch. The PCM may be configured to selectively drive the power switch to electrically connect the battery to the load. The drive diverter may be configured to interrupt the PCM from driving the power switch in order to electrically disconnect the battery from the load in response to activation of a user-operable switch.

Abstract: A pressure sensor comprises an optical source configured to illuminate the tissue of a user, and an optical sensor configured to measure reflected illumination from the tissue. A compute system is configured to output a pressure between a surface of the optical sensor and the tissue as a function of the measured reflected illumination.

Abstract: Various embodiments relating to a battery isolation circuit for disconnecting a battery from a load are disclosed. In one embodiment, a battery isolation circuit includes a power switch, a protection circuit module (PCM), and a drive diverter. The power switch may be operatively intermediate a battery and a load. The PCM may be operatively connected to the power switch. The PCM may be configured to selectively drive the power switch to electrically connect the battery to the load. The drive diverter may be configured to interrupt the PCM from driving the power switch in order to electrically disconnect the battery from the load in response to activation of a user-operable switch.

Abstract: A system and method for a gaming chip identification system are disclosed. Briefly described, one embodiment comprises a plurality of gaming chips, each gaming chip operable to emit a respective unique electromagnetic signature in response to incident non-optical electromagnetic radiation, a computer-readable medium that stores information indicative of the electromagnetic signatures of at least a number of the plurality of gaming chips, and a processor-based system configured to verify that the electromagnetic signature from an interrogated gaming chip in an interrogation zone is a member of the plurality of gaming chips.

Abstract: A system and method for a gaming chip identification system are disclosed. Briefly described, one embodiment comprises a plurality of gaming chips, each gaming chip operable to emit a respective unique electromagnetic signature in response to incident non-optical electromagnetic radiation, a computer-readable medium that stores information indicative of the electromagnetic signatures of at least a number of the plurality of gaming chips, and a processor-based system configured to verify that the electromagnetic signature from an interrogated gaming chip in an interrogation zone is a member of the plurality of gaming chips.

Abstract: A system and method for a gaming chip communication includes a memory configured to store chip information, a first antenna communicatively coupled to the memory and configured to receive a first radio frequency (RF) signal that includes at least previous stack information, a second antenna operable to communicate a second RF signal that comprises the previous stack information and the chip information, and where the first antenna is further configured to communicate an RF acknowledgement signal to a communication system that transmitted the first RF signal in response to the second antenna communicating the second RF signal.

Abstract: A system and method for a gaming chip identification system are disclosed. Briefly described, one embodiment comprises a plurality of gaming chips, each gaming chip operable to emit a respective unique electromagnetic signature in response to incident non-optical electromagnetic radiation, a computer-readable medium that stores information indicative of the electromagnetic signatures of at least a number of the plurality of gaming chips, and a processor-based system configured to verify that the electromagnetic signature from an interrogated gaming chip in an interrogation zone is a member of the plurality of gaming chips.

Abstract: Briefly described, one embodiment of a system and method for a gaming chip communication comprises a memory operable to store chip information, a first antenna communicatively coupled to the memory and operable to receive a first radio frequency (RF) signal that comprises at least previous stack information, a second antenna operable to communicate a second RF signal that comprises the previous stack information and the chip information, and where, in response to the second antenna communicating the second RF signal, the first antenna is further operable to communicate an RF acknowledgement signal to a communication system that transmitted the first RF signal.