Abstract: Disclosed are various embodiments of a radio-frequency identification (RFID) watch band. Various embodiments include a strap body, a first radio frequency identifier (RFID) chip embedded within the strap body, and a second RFID chip embedded within the strap body. Various embodiments can also include a third RFID chip embedded within the strap body. In various embodiments, the watch band can include a first connector attached at a first end of the strap body. Various embodiments can further include a second connector attached at a second end of the strap body.

Abstract: A system for providing efficient, reliable, and accurate calibration and measurements of a satellite communication (SATCOM) test system, especially in E-band frequencies where precision of measurement and calibration plays a large role in reliable communications at terabit data rates. The system may include a vector network analyzer (VNA), at 67 GHz operation, calibrated using SOLT-type calibrations. The vector network analyzer (VNA) may be communicatively coupled to a device under test (DUT) or system under test (SUT) to obtain calibration and measurement data. The system may also include a signal generator for generating at least one signal. The system may further include an active mixer communicatively coupled to the signal generator. The active mixer may up-convert the least one signal to E-band frequencies. In some examples, the vector network analyzer (VNA), the local oscillator (LO) signal generator, and the active mixer may be synchronized or phase-locked using a reference.

Abstract: An apparatus includes a bolt carrier assembly and a bolt assembly. The bolt assembly includes a bolt body member, the bolt body member having a proximal end portion and a distal end portion, and defining a longitudinal axis extending from the proximal end to the distal end. The bolt assembly includes a guide member attached to proximal end portion and the guide member is parallel to the longitudinal axis. The bolt assembly further includes a bolt chamber interface attached to a distal end portion, the bolt chamber interface nests within an interior wall of a firearm chamber, and the bolt chamber interface limits rotational and axial movement of the bolt assembly relative to the firearm chamber. The bolt assembly includes a bolt nipple connector for mating with a nipple assembly of a magazine assembly.

Abstract: A computer implemented method is disclosed for obfuscating an algorithm. The computer-implemented method includes (1) receiving ciphertext input data, and (2) executing obfuscated program instructions using the ciphertext input data and an obfuscation key. The ciphertext input data is based on plaintext input data encrypted using an input encryption key. The obfuscated program instructions are configured for concealing initial program instructions. The initial program instructions are configured for (1) receiving the plaintext input data, (2) providing plaintext output data based on an algorithm, and (3) providing ciphertext output data. The ciphertext output data is configured for decryption to provide the plaintext output data.

Abstract: Methods, systems, and apparatus, for associating data items with objects depicted in an image and search the associated data items based on object detected in images that are subsequently processed and presenting the data items associated with an object when the object is identified in the subsequently processed image.

Abstract: The freezable insulated crate liner generally relates to devices and methods for transporting items, and more specifically relates to crate liners for use in delivering temperature-controlled items such as perishable food. The crate liners are insulated to maintain a temperature-controlled environment within the liner. The crate liners may also be collapsible to minimize the space required for storing the crate liner when not in use.

Abstract: Aspects described herein may allow for deploying third-party callback to be performed on a mobile device. For example, the mobile device may configure a third-party callback to be performed after a triggering event is detected by a remote device. The triggering event may relate to a remote device associated with the mobile device. A determination may be made as to whether the mobile device is within a pre-determined proximity of the remote device. If the two devices are in proximity and if the mobile device receives a message that indicates the triggering event has been detected, the mobile device may perform the third-party callback. In this way, a user's need to request services conveniently and accurately is facilitated.

Abstract: A subassembly for a shaving razor cartridge with a base having a front wall with a top surface and a rear wall with a top surface. At least one blade is mounted to the base between the front wall and the rear wall. The at least one blade has a cutting edge positioned at least 0.5 mm below a plane tangent to the top surface of the front wall and the top surface of the rear wall.

Abstract: Example embodiments relate to selective deactivation of light emitters for interference mitigation in light detection and ranging (lidar) devices. An example method includes deactivating one or more light emitters within a lidar device during a firing cycle. The method also includes identifying whether interference is influencing measurements made by the lidar device. Identifying whether interference is influencing measurements made by the lidar device includes determining, for each light detector of the lidar device that is associated with the one or more light emitters deactivated during the firing cycle, whether a light signal was detected during the firing cycle.

Abstract: A novel phantom-powered FET (field effect transistor) circuit for audio application is disclosed. In one embodiment of the invention, a novel phantom-powered FET preamplifier gain circuit can minimize undesirable sound distortions and reduce the cost of producing a conventional preamplifier gain circuit. Moreover, in one embodiment of the invention, one or more novel rounded-edge magnets may be placed close to a ribbon of a ribbon microphone, wherein the one or more novel rounded-edge magnets reduce or minimize reflected sound wave interferences with the vibration of the ribbon during an operation of the ribbon microphone. Furthermore, in one embodiment of the invention, a novel backwave chamber operatively connected to a backside of the ribbon can minimize acoustic pressure, anomalies in frequency responses, and undesirable phase cancellation and doubling effects.

Abstract: Example embodiments relate to light detection and ranging (lidar) devices having a light-guide manifold. An example lidar device includes a transmit subsystem. The transmit subsystem includes a light emitter. The transmit subsystem also includes a light-guide manifold optically coupled to the light emitter. Further, the transmit subsystem includes a telecentric lens assembly optically coupled to the light-guide manifold. The lidar device also includes a receive subsystem. The receive subsystem includes the telecentric lens assembly. The receive subsystem also includes an aperture plate having an aperture defined therein. The aperture plate is positioned at a focal plane of the telecentric lens assembly. Further, the receive subsystem includes a silicon photomultiplier (SiPM) positioned to receive light traveling through the aperture.

Abstract: An HVAC line set analyzer system is provided. The system includes a base unit and a remote unit, wherein the base unit is in communication with the remote unit. The base unit is configured to couple to an end of tubing of an HVAC line set and the remote unit is configured to couple to an opposing end of the tubing the HVAC line set. The base unit and the remote unit operate together in order to purge the tubing of all contaminates, remaining gases and so forth, equalize the temperature and then measure the length of the tubing of the HVAC line set, which length is an unknown length. This is done with two measurements. The first is the length of the tubing, and the second determines a number of sharp bends in that tubing and calculates an equivalent tubing length associated with the number of sharp bends.

Abstract: A removable stock for a crossbow includes a body. The body includes a front end and a mounting feature. The front end includes a stock interface that is configured to removably couple the stock to a rear interface of a crossbow. The mounting feature is configured to couple a projectile to the body of the removable stock.

Abstract: Ladders, ladder components and related methods are provided. In some embodiments, adjustable stepladders are provided which include locking mechanisms that enable height adjustment of the ladder through application of a force towards the rails of the ladder. In other embodiments, spreader mechanisms are provided with cross bracing located and configured to provide additional stability to the ladder while also incorporating a handle that enables efficient collapsing of the ladder while reducing the potential of pinching ones hands or fingers. In another embodiment, a device is provided for selective coupling with the ladder that includes a support or safety rail and an adjustable tray. The device may be coupled with the ladder in a number of different positions including a stowed position. In another embodiment, a hinge assembly is provided having a magnetic component configured to be magnetically coupled with and temporarily store an object on the ladder.

Abstract: A method includes receiving video data that includes a series of frames of image data. Here, the video data is representative of an actor performing an activity. The method also includes processing the video data to generate a spatial input stream including a series of spatial images representative of spatial features of the actor performing the activity, a temporal input stream representative of motion of the actor performing the activity, and a pose input stream including a series of images representative of a pose of the actor performing the activity. Using at least one neural network, the method also includes processing the temporal input stream, the spatial input stream, and the pose input stream. The method also includes classifying, by the at least one neural network, the activity based on the temporal input stream, the spatial input stream, and the pose input stream.

Abstract: A meta-model topology comprises a plurality of functions and conforms to a global label schema. A new function not included in the plurality of functions is integrated into the meta-model topology. A particular label of interest that is associated with the new function is identified and the new function is configured such that an output from the new function conforms to an output form corresponding to the particular label of interest from the global label schema. The new function is then integrated into the meta-model topology and the meta-model topology that includes the new function is used to generate a model graph. The model graph is then deployed to a remote application that is configured to receive data prompts comprising input data processed by nodes of the model graph.