A notification device includes a pressure sensor, a microcontroller and an output device. The pressure sensor is used to detect the environment to provide a plurality of sound signals in time domain. The microcontroller is used to calculate a dynamic threshold corresponding to a current time point based on the sound signals in time domain during a first time period prior the current time point. of the pressure signal in a period of time. When a magnitude of the sound signal in time domain at the current time point is greater than the dynamic threshold, the microcontroller sends a feedback signal to the output device. The output device is connected to the microcontroller. The output device is used to provide a feedback action according to the feedback signal.

Aspects of the present disclosure involve an apparatus, systems, and methods for providing intelligent laundering alerts. Example embodiments involve an intelligent garment tag that may be affixed to garments, and may store and provide information about the garment to which it is affixed. The information stored thereon describes various aspects of the garment including color, fabric, and laundering information. The intelligent garment tags further include an alert component for providing laundering alerts (e.g., a flashing or colored light, a warning noise, or a vibration) based on, for example, garment color compatibility or laundering device (e.g., washing machine or clothes dryer) compatibility.

Analog signal measurement and related circuitry, systems, and methods are disclosed. Circuitry includes timing circuitry configured to assert a first enable signal at a first time and a second enable signal at a second time. The circuitry also includes an operational amplifier circuit configured to enable responsive to the assertion of the first enable signal. The operational amplifier circuit is configured to receive an analog input signal and, if enabled, generate an amplified analog input signal responsive to the analog input signal. The circuitry further includes signal analyzing circuitry configured to enable responsive to the assertion of the first enable signal, compare the amplified analog input signal to one or more threshold values responsive to the assertion of the second enable signal, and generate an alert signal responsive to a determination that the amplified analog input signal falls outside of the one or more threshold values.

Analog signal measurement and related circuitry, systems, and methods are disclosed. Circuitry includes timing circuitry configured to assert a first enable signal at a first time and a second enable signal at a second time. The circuitry also includes an operational amplifier circuit configured to enable responsive to the assertion of the first enable signal. The operational amplifier circuit is configured to receive an analog input signal and, if enabled, generate an amplified analog input signal responsive to the analog input signal. The circuitry further includes signal analyzing circuitry configured to enable responsive to the assertion of the first enable signal, compare the amplified analog input signal to one or more threshold values responsive to the assertion of the second enable signal, and generate an alert signal responsive to a determination that the amplified analog input signal falls outside of the one or more threshold values.

Surgical articles, such as sponges, are provided in a pack which contains individual surgical articles having UHF RFID or other electronic labels which provide both (a) unique identification information for each article as well as (b) unique identification information for all articles in the pack. Prior to the surgical procedure, the labels are scanned and the identification information for all articles in the pack uploaded to a processor to create a list of available individual surgical articles. At the end of the surgical procedure, the surgical articles are collected and the electronic labels read and compared to the initial list to determine if there are any unaccounted individual surgical articles. The UHF RFID tag may then be used to determine a location of the unaccounted article outside the patient's body.

A smart speaker system is used as an emergency notification system. The smart speaker has a loudspeaker, a microphone, a visual display, processing capability, and an emergency flasher in the same enclosure. The smart speaker is in communication with a network-connected server providing at least distribution of emergency notification messages to appropriate clients. The amount of audio processing shared between the smart speaker and the server may vary, depending on the requirements of the installation site. Once an emergency voice communication is detected in the microphone output, the system generates a confirmation message that is played over the loudspeaker. Upon detection of an appropriate voice response from the user, the system generates an emergency response message, sends it to the distribution network, and activates the visual display, loudspeaker, and emergency flasher. Noise cancellation circuitry prevents loudspeaker interference with microphone output.

This disclosure provides systems, methods, and apparatus related to an ultrasonic microphone and an ultrasonic acoustic radio. In one aspect a system includes a transmitter and a receiver. The receiver comprises a membrane. The membrane comprises a single layer or multiple layers of a two-dimensional material. The receiver is operable to receive sound waves in a frequency range, with the frequency range being the ultrasonic frequency range.

This disclosure provides systems, methods, and apparatus related to an ultrasonic microphone and an ultrasonic acoustic radio. In one aspect a system includes a transmitter and a receiver. The receiver comprises a membrane. The membrane comprises a single layer or multiple layers of a two-dimensional material. The receiver is operable to receive sound waves in a frequency range, with the frequency range being the ultrasonic frequency range.

A method for haptic stimulation includes any or all of: receiving an audio input; determining a set of parameters based on the audio input; determining a set of stimulation locations based on a collective set of energy parameters; assigning a vibration intensity to a set of one or more haptic actuators; and stimulating a user at the set of haptic locations based on the vibration intensities. A system for haptic stimulation includes an actuation subsystem having a set of actuators.

Neighborhood monitoring is performed by configuring a cluster server within a public network to maintain a cluster directory identifying cluster members including a neighborhood of smart listening devices and user vehicles. The neighborhood includes a cluster of dwellings, and the user vehicles includes an autonomous vehicle. The surroundings of the smart listening devices and the user vehicles are monitored using sensors in the smart listening devices and the user vehicles. When an alerting event is detected with one of the sensors, a corresponding one of the smart listening devices and the user vehicles that detected the alerting event initiates a message to another cluster member based on the cluster directory. A responsive action is executed in response to the detected alerting event which includes commanding the at least one autonomous vehicle to autonomously relocate to a designated location.