Abstract: A method for providing directed transmission of sound waves, through modulation on an ultrasonic carrier, may comprise connecting at least one directed sound source to an audio system; emitting, via the at least one directed sound source, audio from the audio system, wherein the emitting comprises emitting medium-frequency audio waves and higher-frequency audio waves. The audio may be selected via a master control unit (MCU), which may be operatively coupled to a mobile application. In some embodiments, a first audio selection is configured to be heard only through a first directed sound source, and a second audio selection is configured to be heard only through a second directed sound source.

Abstract: Systems, devices, and methods for determining, by a processor, an unmanned aerial system (UAS) position relative to at least one flight boundary; and effecting, by the processor, at least one flight limitation of a UAS if the determined UAS position crosses the at least one flight boundary.

Abstract: Doorbells often include a button to enable visitors to ring a chime to summon building occupants. In some embodiments, doorbells include a camera to take pictures of visitors. In several embodiments, doorbells include covers that are light filters. These light filters can cover infrared light sources such as infrared light emitting diodes. The light filters can pass infrared light while blocking visible light. In several embodiments, a front portion of a camera assembly fits through a hole in a light filter. Light filters can help secure camera assemblies and can form a portion of a doorbell's outer housing.

Abstract: Doorbell systems can include a doorbell and a remote communication device. In some embodiments, the remote communication device can be communicatively coupled to a wireless network of a building, to the doorbell, and to a remote computing device. In several embodiments, the remote communication device facilitates communication with at least one of the doorbell, the remote computing device, and a remote sensor.

Abstract: Methods and apparatus for pressure-based direct measurement of a final control element variable are disclosed. An example method includes receiving a signal from a first sensor mounted on a shaft of a valve, converting the signal to a pressure, routing the pressure to a second sensor of a controller operatively coupled to a pneumatic actuator, the pneumatic actuator operatively coupled to the shaft, and determining, by the controller, a first torque on the shaft based on the pressure.

Abstract: A clathrate of 1-methylcyclopropene with ?-cyclodextrin, obtained as a solid particulate product, is modified by comminuting, classifying, or both to obtain a modified particulate. When subjected to identical atmospheric disgorgement conditions of humidity and temperature, identical masses of the modified and unmodified particulates exhibit different rates of 1-methylcyclopropene disgorgement. Specifically, we have found that a smaller mean particle size is inversely related to a greater rate of 1-methylcyclopropene release.

Abstract: Described techniques provide direct measurement of shaft torque in control valve assemblies. The measured torque can be utilized to analyze the performance or health of the control valve. The described techniques utilize a direct measurement of shaft torque, providing a more accurate and precise measurement than an indirect or proxy measurement.

Abstract: A doorbell system can include an electronic doorbell comprising a camera and a button. The electronic doorbell can be configurable to enter a camera sleep mode whereby the camera does not capture images. The system can also include a remote computing device communicatively coupled to the electronic doorbell. The electronic doorbell can be configurable to send a wireless communication request to a mobile application loaded on the remote computing device.

Abstract: Doorbell systems can include a doorbell and a chime. In some embodiments, the chime can be communicatively coupled to a wireless network of a building, to the doorbell, and to a remote computing device. In several embodiments, the chime facilitates communication with at least one of the doorbell, the remote computing device, and a remote sensor.

Abstract: A security system can include an electronic doorbell comprising a first camera configurable to capture an image of a first zone, a button configurable to enable a visitor to sound an electronic chime, and a first microphone configurable to capture sounds. The security system can also include an electronic garage door controller communicatively coupled to the electronic doorbell, the electronic garage door controller comprising a second camera configurable to capture an image of a second zone, and a second microphone configurable to capture sounds. The security system can also include a remote computing device communicatively coupled to at least one of the electronic doorbell and the electronic garage door controller. The remote computing device can be configurable to display at least one of the image of the first zone and the image of the second zone.

Abstract: A method of operating a doorbell system can include receiving, by a remote computing device, a notification of an emergency event and in response to the receiving, illuminating at least one light of a doorbell to indicate an occurrence of the emergency event. The method can further include, in response to receiving the notification, initiating a communication with an emergency dispatcher and/or an emergency contact. The at least one light can illuminate in a variety of colors and illumination patterns corresponding to the type of emergency event.

Abstract: Delivery parcel detection systems can include a doorbell having a first wireless communication system and a parcel holding system configured for placement in an entryway. The doorbell can be communicatively coupled to the parcel holding system. The parcel holding system can comprise a sensor configured to detect a delivery parcel located on the parcel holding system. Systems can include a first communication sent from the parcel holding system to the doorbell in response to the parcel holding system detecting an arrival, a movement, or a removal of the delivery parcel. Systems can also include a second communication sent from the doorbell to a remote computing device in response to the doorbell receiving the first communication.

Abstract: Markers may be presented on different objects in a facility, such as shelves or totes. A marker can use color, placement of elements, blending effects, or infrared light layers to encode data about the object. During operation, a camera within the facility may acquire an image, which includes an image of the marker as presented on the object. The marker can be analyzed to detect marker data encoded therein. By decoding the marker data, details about the marker can be extracted, such as an identification of the object. In addition, using details about the marker location within the image and location data associated with the camera, a location of the object relative to the camera can be determined, as well as an orientation of the object relative to the camera. As the object moves within the facility, the object can be tracked based on this location and orientation data.

Abstract: The disclosure includes a doorbell system having a doorbell, a doorbell housing, a visitor detection system, and a chime. The visitor detection system can be coupled to the doorbell housing and can include at least one of a camera and a motion detector. The doorbell can also comprise a first low-energy transceiver and a first high-energy transceiver that can be coupled to the doorbell housing. The first and second low-energy transceivers and the first and second high-energy transceivers can be configured to transmit data.

Abstract: A security system can include an electronic doorbell comprising a first camera configurable to capture an image of a first zone, a button configurable to enable a visitor to sound an electronic chime, and a first microphone configurable to capture sounds. The security system can also include an electronic garage door controller communicatively coupled to the electronic doorbell, the electronic garage door controller comprising a second camera configurable to capture an image of a second zone, and a second microphone configurable to capture sounds. The security system can also include a remote computing device communicatively coupled to at least one of the electronic doorbell and the electronic garage door controller. The remote computing device can be configurable to display at least one of the image of the first zone and the image of the second zone.

Abstract: A door lock system can comprise a door lock movable between a locked state and an unlocked state. The door lock system can detect a first indication suggestive of a presence of a visitor. The door lock system can also detect a second indication suggestive of an identity of the visitor. As well, the door lock can validate that the first indication and the second indication are associated with a first identity.

Abstract: A security system can be configured to mount to a power outlet. The security system can include an outwardly facing portion configured to face away from the power outlet and an inwardly facing portion having a first electrical prong and a second electrical prong that protrude into the power outlet to mount the security system to the power outlet. The security system can also include a detection system comprising a camera and a motion detector.

Abstract: Systems, methods, and computer program products for monitoring a health condition of a tool. Operational data is collected from a machine while the machine is operating in a predetermined manner with the tool in each of at least two known health conditions. A plurality of features is extracted from the operational data, a training dataset is generated from the extracted features, and an analytic model is trained using the training dataset. The analytic model can then be used to determine the health condition of the tool by providing features extracted from operational data received from one or more field machines to the analytic model. The analytic model may then determine a health condition of the tool in the field machine based on like features extracted from the operational data from the one or more field machines.