Abstract: According to some embodiments, an analog processing portion may receive an audio signal from a microphone. The analog processing portion may then convert the audio signal into sub-band signals and estimate an energy statistic value, such as a Signal-to-Noise Ratio (“SNR”) value, for each sub-band signal. A classification element may classify the estimated energy statistic values with analog processing such that a wakeup signal is generated when voice activity is detected. The wakeup signal may be associated with, for example, a battery-powered, always-listening audio application.

Abstract: According to some embodiments, an analog processing portion may receive an audio signal from a microphone. The analog processing portion may then convert the audio signal into sub-band signals and estimate an energy statistic value, such as a Signal-to-Noise Ratio (“SNR”) value, for each sub-band signal. A classification element may classify the estimated energy statistic values with analog processing such that a wakeup signal is generated when voice activity is detected. The wakeup signal may be associated with, for example, a battery-powered, always-listening audio application.

Abstract: According to some embodiments, a sensor network may be provided with re-programmable and/or reconfigurable analog circuitry configured to monitor data collected by the sensor network. The re-programmable and/or reconfigurable analog circuitry may also generate a wakeup signal in response to a defined wakeup event detected by the sensor network.

Abstract: According to some embodiments, an analog processing portion may receive an audio signal from a microphone. The analog processing portion may then convert the audio signal into sub-band signals and estimate an energy statistic value, such as a Signal-to-Noise Ratio (“SNR”) value, for each sub-band signal. A classification element may classify the estimated energy statistic values with analog processing such that a wakeup signal is generated when voice activity is detected. The wakeup signal may be associated with, for example, a battery-powered, always-listening audio application.

Abstract: Aspects of a low power memory buffer are described. In one embodiment, a sampling rate of a signal is adjusted to identify extrema of a signal. An extrema pulse is generated and, in response to the extrema pulse, a time segment and potential value of the signal are stored in a memory. In other aspects, rising and falling slopes of the signal are tracked to identify a local maximum and a local minimum of the signal. In this scenario, an extrema pulse is generated for each of the local maximum and minimum, and time segment and potential values are stored for the local maximum and minimum. Generally, the storage of analog values of the signal at an adjusted sampling rate is achieved with low power, and the signal may be reconstructed at a later time.

Abstract: According to some embodiments, an analog processing portion may receive an audio signal from a microphone. The analog processing portion may then convert the audio signal into sub-band signals and estimate an energy statistic value, such as a Signal-to-Noise Ratio (“SNR”) value, for each sub-band signal. A classification element may classify the estimated energy statistic values with analog processing such that a wakeup signal is generated when voice activity is detected. The wakeup signal may be associated with, for example, a battery-powered, always-listening audio application.

Abstract: According to some embodiments, a sensor network may be provided with re-programmable and/or reconfigurable analog circuitry configured to monitor data collected by the sensor network. The re-programmable and/or reconfigurable analog circuitry may also generate a wakeup signal in response to a defined wakeup event detected by the sensor network.

Abstract: Aspects of a continuous-time memory cell circuit are described. In various embodiments, the memory cell circuit may comprise a memory cell, a current source coupled to the memory cell, and circuitry for programming the memory cell at an adaptive rate, based on a target voltage for programming, using a feedback loop between a gate terminal of the memory cell and a reference control input. Based on the circuitry for programming, the memory cell may be programmed according to various voltage and/or current references, by linear injection and/or tunneling mechanisms. According to various aspects, the circuitry for programming drives a memory cell to converge to a voltage target for programming within a short period of time and to a suitable level of accuracy.

Abstract: According to some embodiments, a sensor network may be provided with re-programmable and/or reconfigurable analog circuitry configured to monitor data collected by the sensor network. The re-programmable and/or reconfigurable analog circuitry may also generate a wakeup signal in response to a defined wakeup event detected by the sensor network.

Abstract: Aspects of a low power memory buffer are described. In one embodiment, a sampling rate of a signal is adjusted to identify extrema of a signal. An extrema pulse is generated and, in response to the extrema pulse, a time segment and potential value of the signal are stored in a memory. In other aspects, rising and falling slopes of the signal are tracked to identify a local maximum and a local minimum of the signal. In this scenario, an extrema pulse is generated for each of the local maximum and minimum, and time segment and potential values are stored for the local maximum and minimum. Generally, the storage of analog values of the signal at an adjusted sampling rate is achieved with low power, and the signal may be reconstructed at a later time.

Abstract: Aspects of a low power memory buffer are described. In one embodiment, a sampling rate of a signal is adjusted to identify extrema of a signal. An extrema pulse is generated and, in response to the extrema pulse, a time segment and potential value of the signal are stored in a memory. In other aspects, rising and falling slopes of the signal are tracked to identify a local maximum and a local minimum of the signal. In this scenario, an extrema pulse is generated for each of the local maximum and minimum, and time segment and potential values are stored for the local maximum and minimum. Generally, the storage of analog values of the signal at an adjusted sampling rate is achieved with low power, and the signal may be reconstructed at a later time.

Abstract: Aspects of a continuous-time memory cell circuit are described. In various embodiments, the memory cell circuit may comprise a memory cell, a current source coupled to the memory cell, and circuitry for programming the memory cell at an adaptive rate, based on a target voltage for programming, using a feedback loop between a gate terminal of the memory cell and a reference control input. Based on the circuitry for programming, the memory cell may be programmed according to various voltage and/or current references, by linear injection and/or tunneling mechanisms. According to various aspects, the circuitry for programming drives a memory cell to converge to a voltage target for programming within a short period of time and to a suitable level of accuracy.

Abstract: Aspects of a continuous-time memory cell circuit are described. In various embodiments, the memory cell circuit may comprise a memory cell, a current source coupled to the memory cell, and circuitry for programming the memory cell at an adaptive rate, based on a target voltage for programming, using a feedback loop between a gate terminal of the memory cell and a reference control input. Based on the circuitry for programming, the memory cell may be programmed according to various voltage and/or current references, by linear injection and/or tunneling mechanisms. According to various aspects, the circuitry for programming drives a memory cell to converge to a voltage target for programming within a short period of time and to a suitable level of accuracy.

Abstract: According to some embodiments, a sensor network may be provided with re-programmable and/or reconfigurable analog circuitry configured to monitor data collected by the sensor network. The re-programmable and/or reconfigurable analog circuitry may also generate a wakeup signal in response to a defined wakeup event detected by the sensor network.

Abstract: Aspects of a continuous-time memory cell circuit are described. In various embodiments, the memory cell circuit may comprise a memory cell, a current source coupled to the memory cell, and circuitry for programming the memory cell at an adaptive rate, based on a target voltage for programming, using a feedback loop between a gate terminal of the memory cell and a reference control input. Based on the circuitry for programming, the memory cell may be programmed according to various voltage and/or current references, by linear injection and/or tunneling mechanisms. According to various aspects, the circuitry for programming drives a memory cell to converge to a voltage target for programming within a short period of time and to a suitable level of accuracy.

Abstract: A floating-gate transistor array and method for programming the same. The floating-gate transistor array includes a plurality of transistors having a source, drain, and floating-gate, whereby the plurality of transistors is arranged into multiple rows and columns. Each row of transistors includes a row programming switch having an output connected to each floating-gate within the row, while each column of transistors includes a column programming switch having an output connected to each drain within the column. The source of each transistor is coupled with a source line corresponding to the specific row of the transistor. The row and column programming switches are utilized to select and program a desired floating-gate transistor. In an indirect programming method, two transistors share a floating gate, such that programming a programmer transistor modifies the current of an agent transistor, which is attached to the circuit, thereby permitting run-time programming.

Abstract: A means and method for treating bacterial infection, providing antioxidant activity, and chelating copper using a copper binding compound produced by methanotrophic bacteria is described. The compound, known as methanobactin, is the first of a new class of antibiotics having gram-positive activity. Methanobactin has been sequenced, and its structural formula determined.

Abstract: A means and method for treating bacterial infection, providing antioxidant activity, and chelating copper using a copper binding compound produced by methanotrophic bacteria is described. The compound, known as methanobactin, is the first of a new class of antibiotics having gram-positive activity. Methanobactin has been sequenced, and its structural formula determined.