Abstract: According to some embodiments, re-programmable and/or reconfigurable analog circuitry may be provided. An image interpreter (e.g., a Micro Control Unit (“MCU”)) may be configured to receive and store an image, generated for a particular application, to facilitate variation trimming of the re-programmable and/or reconfigurable analog circuitry. The variation trimming may, for example, be performed during production of the re-programmable and/or reconfigurable analog circuitry or post-production of circuitry, in the field, after the circuitry is provided to a customer.

Abstract: According to some embodiments, re-programmable and/or reconfigurable analog circuitry monitor an acoustic signal sensed by a sound sensor and selectively generates a tone detection signal in response to an analysis of the acoustic signal and a defined tone detection condition. The tone detection condition may be, for example, associated with presence of at least one pre-determined tone frequency. A digital Microcontroller Unit (“MCU”), coupled to the analog circuitry, may receive the tone detection signal as an interrupt causing the MCU to wake-up, generate a digital timestamp, and/or analyze a series of digital timestamps to detect at least one temporal audio alarm pattern, such as a temporal-three (“T3”) or a temporal-four (“T4”) audio alarm pattern.

Abstract: Motion detection in a video signal stream representing a series of rows in one or more image frames includes filtering the video signal stream for one or more features, generating a plurality of masked video signal streams by multiplying the feature video signal stream with a plurality of mask signal streams, which correspond to an image mask region within one or more image frames, determining a value of an intensity-based parameter of the feature in the plurality of mask signal streams, and determining a change in the value of the intensity-based parameter to detect motion over image frames.

Abstract: According to some embodiments, re-programmable and/or reconfigurable analog circuitry may be provided. A plurality of reference floating-gate transistors are each programmable to be connectable to a plurality of global reference control lines of the analog circuitry to facilitate temperature compensation. In some embodiments, the plurality of analog nonvolatile memory cells are associated with parameter floating-gate transistors. Moreover, the plurality of analog parameter nonvolatile memory cells may be programmed to several orders of parameter magnitude.

Abstract: According to some embodiments, a memory controller may be provided. A compute-in-memory array may be connected to a plurality of word lines of the memory controller, with multiple word lines per word being associated with different temperature coefficients, to facilitate temperature compensation of the compute-in-memory array. In some embodiments, the compute-in-memory array may be associated with parameter floating-gate transistors. Moreover, a plurality of compute-in-memory arrays may be individually programmed to several orders of parameter magnitude.

Abstract: Motion detection in a video signal stream representing a series of rows in one or more image frames includes filtering the video signal stream for one or more features, generating a plurality of masked video signal streams by multiplying the feature video signal stream with a plurality of mask signal streams, which correspond to an image mask region within one or more image frames, determining a value of an intensity-based parameter of the feature in the plurality of mask signal streams, and determining a change in the value of the intensity-based parameter to detect motion over image frames.

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.