Abstract: An energy-aware system is provided. The system includes an energy harvester adapted to supply harvested energy as an output for storage at an energy storage; and a scheduler, the scheduler being made up of, at least in part, hardware of the energy-aware system, the scheduler operable to schedule execution of operations performed by the energy-aware system, wherein the scheduler is configured to: determine if a current voltage level at the energy storage is higher than a start voltage level; and cause initiation of execution of at least a portion one of the operations when the start voltage of the one of the operations levels is lower than or equal to the current voltage level.

Abstract: A system and method for encrypting a data frame of a low-power communication protocol. The method includes providing an input data frame, the input date frame includes a random number, a unique identifier, and a payload data, encrypting the payload data, generating a Message Integrity Code (MIC), generating a rotating identifier by encrypting the unique identifier, and generating an output frame based on the generated rotating identifier, the generated MIC, and the encrypted payload data.

Abstract: Apparatus providing a regulated power supply to an oscillator comprises a reference voltage generator supplying a voltage reference, a regulator producing, based on a voltage received thereat, a regulated supply used by the oscillator which bases its frequency thereon, a capacitor having a terminal coupled to the regulator at a point, and a switch that is coupled to the reference voltage generator and to the point, wherein the closed switch couples the reference voltage generator to the point and wherein the open switch disconnects the point from the reference voltage generator, the switch being closed for a first time period during which a voltage based on the voltage reference from the reference voltage generator is supplied to the regulator and capacitor, and for a second, subsequent, time period the switch is opened and voltage stored on the capacitor is supplied to the regulator.

Abstract: A system and method for analyzing power usage of an energy-aware computing system. A method includes monitoring executed machine code on a line-by-line basis; monitoring power consumption of each component of the energy-aware computing system simultaneous to the machine code monitoring; determining at least one routine executed by the energy-aware computing system based on the monitored executed machine code, wherein the at least one routine is a portion of machine code that performs a specific task within a larger set of instructions for the energy-aware computing system; and mapping the power consumption for each determined routine.

Abstract: A battery-less Internet of things (IoT) tag integrated with a proximity sensor is disclosed. The battery-less IoT tag includes: a transmit antenna designed to have an inductive element; an integrated circuit having a capacitive element; and an energy harvester coupled to a capacitor, wherein the capacitor is an on-die capacitor and the energy harvester is configured to harvest energy from ambient signals, wherein the inductive element and the capacitive element form the proximity sensor oscillating at a local oscillator (LO) frequency, and wherein a frequency offset from the LO frequency is indicative of a detection of a nearby object.

Abstract: According to the disclosed embodiments, an on-die capacitor utilized in energy-harvest based circuits is provided. In the disclosed design, the harvester is coupled to the on-die capacitor, thus there is no need to provide power interfaces and semi-conductor devices external to the IC. The disclosed design of the on-die capacitor would reduce the overall size and cost of the IC.

Abstract: An oscillator calibration circuit is presented. The oscillator calibration includes a first frequency locking circuit (FLC) coupled to a first oscillator, wherein the first FLC calibrates the frequency of the first oscillator using an over-the-air reference signal, wherein the first FLC calibrates the first oscillator prior to a data transmission session and remains free running during the data transmission session; and a second FLC coupled to a second oscillator, wherein the second FLC calibrates the frequency of the second oscillator using the over-the-air reference signal, wherein the second FLC calibrates the second oscillator immediately prior to a data transmission session and remains free running during the data transmission session.

Abstract: A low-energy communication system includes at least one antenna; an energy harvester coupled to the at least one antenna and adapted to harvest energy from over-the-air signals; a first capacitor for storing the harvested energy; a system on chip (SoC) for allowing at least reception and transmission of wireless signals using a low-energy communication protocol; and wherein the energy harvester, the first capacitor, the SoC, are integrated in a semiconductor die, the die is placed on a substrate; and wherein the at least one antenna is included in the substrate.

Abstract: A power management circuit is provided. The power management circuit includes a plurality of detectors, wherein each of the plurality of detectors are configured with a different reference threshold voltage level; and a controller coupled to the plurality of detectors and configured to activate a subset of the plurality of detectors at any given time, wherein a subset of the plurality of detectors, when activated, are configured to provide a multi-level voltage level indication on a state of a voltage supply.

Abstract: A low energy transmitter is provided. The transmitter includes an antenna circuit wherein the antenna circuit has an antenna positive node interface (Vop) and an antenna negative node interface (Von); a reference voltage source that supplies a reference voltage to the antenna circuit; and a common mode feedback (CMFB) circuit coupled to the antenna circuit that receives from the antenna circuit inputs from the Vop and the Von and supplies at least one signal to the antenna circuit.

Abstract: A system and a method for testing a wireless tag that has an antenna for wireless communication and employs a low energy wireless communication protocol. The system includes a near field antenna; and a fixture for positioning the wireless tag to be tested so that the at least one antenna for wireless communication of the at least one wireless tag to be tested is within a near field of the near field antenna of the system; wherein when the wireless tag is positioned by the fixture, it is within an at least a partly open chamber. The method comprises supplying, via the near field antenna of the system, a test signal for receipt by the antenna of the wireless tag; and comparing a received signal strength of a response from the wireless tag in response to the test signal to an expected benchmark.

Abstract: A system and method for executing a sequence of functions by at least one microcontroller operable in a battery-less internet of things (IoT) device. The IoT device includes: at least one microcontroller configured to execute one or more pre-programmed sequences; a sequencer configured to retrieve, from a cloud server, at least one flow, wherein the at least one flow indicates: an order of the pre-programmed sequences to be executed, and which of the at least one microcontroller are to execute each of the pre-programmed sequences; and an energy storage.

Abstract: A system and method for method for providing an augmented reality tag viewer are provided. The method includes receiving, by a device, a low-energy encrypted beacon from a tag attached to a product, the beacon uniquely identifies the product; retrieving information about the product identified by the received beacon; determining if the product is present in a field of view of a camera of the device; upon determining that the identified product is present in the field of view of the camera, matching the product in the field of view with the retrieved information; and upon determining that the product in the field of view matches the retrieved information, overlaying an interface over the display to highlight the product.

Abstract: A system and method for method for testing an energy harvesting tag, comprising: transmitting a harvesting signal to an energy harvesting tag at time T1; receiving a response signal from the energy harvesting tag at time T2; determining a capacitor charging time of the energy harvesting tag as a difference between T2 and T1; and assigning a pass value to the energy harvesting tag when the capacitor charging time is less than a predetermined threshold amount.

Abstract: An antenna for harvesting energy from frequency modulation radio signals are provided. An antenna for harvesting energy from frequency modulation (FM) radio signals includes a loop element coupled to an energy harvester; and an inductive element coupled to the loop element, wherein the inductive element is a planar inductor designed to allow impedance matching with the energy harvester, wherein the inductive element that extends an electric field of the loop element, wherein the loop element and the inductive element resonate at an FM frequency band.

Abstract: A multi-band energy harvesting system is provided. The system includes a plurality of harvesting antennas, wherein each of the plurality of harvesting antennas, operates a specific frequency band; and a plurality of harvesting units, wherein each of the plurality of harvesting units is coupled to a respective harvesting antenna and adapted to harvest energy at the specific frequency band of the respective harvesting antenna.

Abstract: A system and method for tracing vaccine vials are provided. The method includes receiving, from a gateway of a plurality of gateways, frequency words from tags attached to vaccine vials, wherein each tag is configured to transmit a plurality of frequency words; extracting at least one data feature from the plurality of frequency words, wherein each data feature changes in response to a change in a state of a vaccine vial; classifying the extracted data feature based on a machine learning model trained with respect to a location of the gateway, wherein the classifier is trained to label a trace parameter indicative of a state of a vaccine vial; and sending a semantic event indicating a value of the trace parameter.

Abstract: A system and method for detecting material type using low-energy sensing are disclosed. The method includes receiving frequency words from a tag attached to a container containing material, wherein the tag provides a low-energy sensing configured to transmit the frequency words; extracting at least a first data feature from the received frequency words, wherein the first data feature changes in response to a type of material in the container; classifying the extracted data feature to label a type of the material in the container; and sending a notification indicating the type of material in the container.

Abstract: A system and method for encrypting a data frame of a low-power communication protocol. The method includes providing an input data frame, the input date frame includes a random number, a unique identifier, and a payload data, encrypting the payload data, generating a Message Integrity Code (MIC), generating a rotating identifier by encrypting the unique identifier, and generating an output frame based on the generated rotating identifier, the generated MIC, and the encrypted payload data.

Abstract: A battery-less Interest of things (IoT) tag integrated with a proximity sensor is disclosed. The battery-less IoT tag includes: a transmit antenna designed to have an inductive element; an integrated circuit having a capacitive element; and an energy harvester coupled to a capacitor, wherein the capacitor is an on-die capacitor and the harvester is configured to harvest energy from ambient signals, wherein the inductive element and the capacitive element form the proximity sensor oscillating at a local oscillator (LO) frequency, and wherein a frequency offset from the LO frequency is indicative of a detection of a nearby object.