Abstract: A structure and method for improving manufacturing yield of passive device dies are disclosed. The structure includes first and second groups of capacitors disposed on a substrate, an interconnect structure disposed on the first and second groups of capacitors, first and second bonding structures disposed on the first and second conductive lines, respectively, and first and second measurement structures connected to the first and second conductive lines, respectively, and configured to measure electrical properties of the first and second groups of capacitors, respectively. The interconnect structure includes first and second conductive line connected to the first and second groups of trench capacitors, respectively. The first bonding structure is electrically connected to the first group of capacitors and the second bonding structure is electrically isolated from the first and second groups of capacitors. The first and second measurement structures are electrically isolated from each other.

Abstract: Multi-mode personal transportation and delivery devices and methods of use are disclosed herein. A device can include a communications interface, the communications interface configured to provide vehicle-to-everything communications, a device controller comprising: a processor; and a memory for storing instructions, the processor executing the instructions to: receive a first message from a service provider that the transportation device is to relocate to a location based on user demand; and activate a redistribution mode to cause the transportation device to autonomously navigate to the location.

Abstract: This disclosure relates to a mask, and in particular a mask configured as a respirator. The disclosed mask is relatively low cost and relatively easy to manufacture. Further, the disclosed mask is reusable and customizable.

Abstract: Multi-mode personal transportation and delivery devices and methods of use are disclosed herein. A device can include a communications interface, the communications interface configured to provide vehicle-to-everything communications, a device controller comprising: a processor; and a memory for storing instructions, the processor executing the instructions to: receive a first message from a service provider that the transportation device is to relocate to a location based on user demand; and activate a redistribution mode to cause the transportation device to autonomously navigate to the location.

Abstract: This disclosure relates to a mask, and in particular a mask configured as a respirator. The disclosed mask is relatively low cost and relatively easy to manufacture. Further, the disclosed mask is reusable and customizable.

Abstract: A channel loading pre-adjusting system for 5G wireless communication adapted to be used for communicating at least one user's device with a core network includes a radio unit, a distributed unit in communication with the radio unit via a specified transmission channel, and a central unit. The distributed unit periodically detects transmission conditions of the specified channel and determines whether to issue an alarm signal accordingly, and in response to the alarm signal, the central unit determines whether to suspend data transmission via the specified transmission channel. The transmission conditions include a first group of latency parameters realized in a first number of consecutive detecting operations of the distributed unit and a temporal threshold derived from a second group of latency parameters realized in a second number of consecutive detecting operations of the distributed unit, and the first group of latency parameters are dynamically updated with time.

Abstract: A vehicle includes a body, a removable cab, a cargo movement subsystem, and a computing device. The removable cab is attachable to the body. The computing device includes a processor and a memory. The computing device is programmed to actuate at least one vehicle subsystem to move the vehicle to deliver cargo stored in the cab and the cargo movement subsystem move the cargo. The cargo movement subsystem is arranged to move the cargo from the cab to a position accessible from an exterior of the vehicle.

Abstract: A scooter includes a platform, a shell movably coupled to the platform via a gripper of the shell and a grip surface of the platform, and front and rear wheels rotatably coupled to the platform. The shell defines a cavity, and the platform is movable into and out of the cavity. The scooter may include a retractable pole coupled to the platform and a handlebar coupled to the retractable pole. The retractable pole may be coupled to and steer the front wheel. The shell may include one or two foldable decks.

Abstract: A machine tool health monitoring method which is to use a predetermined plurality of vibration sensors on a plurality of components of a machine tool and to drive motors of the machine tool to excite the machine tool using an electronic device while the health status of the machine tool is good, and then to perform a diagnostic process to obtain a characteristic cluster consisting of a plurality of modals, and then to define the characteristic cluster as a sample health characteristic cluster. The diagnostic process includes the procedures of vibration transmissibility obtaining, singular value decomposition, curve fitting and modal establishing. In addition, excite the machine tool and proceed the diagnosis process to obtain a current health characteristic cluster. Finally, the current health characteristic cluster is compared with the sample health characteristic cluster to judge whether the machine tool is healthy or not.

Abstract: A channel loading pre-adjusting system for 5G wireless communication adapted to be used for communicating at least one user's device with a core network includes a radio unit, a distributed unit in communication with the radio unit via a specified transmission channel, and a central unit. The distributed unit periodically detects transmission conditions of the specified channel and determines whether to issue an alarm signal accordingly, and in response to the alarm signal, the central unit determines whether to suspend data transmission via the specified transmission channel. The transmission conditions include a first group of latency parameters realized in a first number of consecutive detecting operations of the distributed unit and a temporal threshold derived from a second group of latency parameters realized in a second number of consecutive detecting operations of the distributed unit, and the first group of latency parameters are dynamically updated with time.

Abstract: A machine tool health monitoring method which is to use a predetermined plurality of vibration sensors on a plurality of components of a machine tool and to drive motors of the machine tool to excite the machine tool using an electronic device while the health status of the machine tool is good, and then to perform a diagnostic process to obtain a characteristic cluster consisting of a plurality of modals, and then to define the characteristic cluster as a sample health characteristic cluster. The diagnostic process includes the procedures of vibration transmissibility obtaining, singular value decomposition, curve fitting and modal establishing. In addition, excite the machine tool and proceed the diagnosis process to obtain a current health characteristic cluster. Finally, the current health characteristic cluster is compared with the sample health characteristic cluster to judge whether the machine tool is healthy or not.

Abstract: A scooter includes a platform, a shell movably coupled to the platform via a gripper of the shell and a grip surface of the platform, and front and rear wheels rotatably coupled to the platform. The shell defines a cavity, and the platform is movable into and out of the cavity. The scooter may include a retractable pole coupled to the platform and a handlebar coupled to the retractable pole. The retractable pole may be coupled to and steer the front wheel. The shell may include one or two foldable decks.

Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. Each remote signal source is configured to transmit an access signal. The baseband processing unit pool provides a baseband processing signal. The access management server provides an access state signal. Different maximum transmission rates are transmitted via the access state signal. When the baseband processing unit pool has authenticated one remote signal source, the baseband processing unit pool transmits an authentication notification signal to the access management server. Then, the access management server informs the software defined network controller according to the authentication notification signal to increase an upper limit of a signal transmission rate between the baseband processing unit pool and the authenticated remote signal source to a higher one of the maximum transmission rates.

Abstract: A device for monitoring healthy status of machinery mounts is provided, which may include a plurality of vibration detectors, a signal acquisition device and a signal processor. The vibration detectors may detect the vibration signals from of a machine device, where the machine device may include a plurality of machinery mounts. The signal acquisition device may receive the vibration signals of the vibration detectors. The signal processor may execute a modal frequency analysis process to analyze the vibration signals of the vibration detectors, and calculate a vibration mode corresponding to the natural frequency of the machinery mounts in current status to serve as the test mode; then, the signal processor may compare the test mode with a reference mode to determine the healthy status of the machinery mounts, where the reference mode is corresponding to the natural frequency of the machinery mounts in the optimized status.

Abstract: A personal transportation device comprises a frame, a wheel pivotably connected to a frame and switchable between a driving configuration and a flying configuration, a motor to rotate the wheel; and an automatic cruise module. The automatic cruise module is configured to control the wheel and guide the personal transportation device to fly from a first location to a second location according to a designated route as an unmanned aircraft.

Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. The software defined network controller is electrically connected to the access management server and the network signal forwarder. The network signal forwarder includes at least two network connectors, each of which is configured to be connected to one remote signal source or the baseband processing unit pool. The software defined network controller obtains connection relation between the network connectors and the remote signal sources or the baseband processing unit pool, and provides network resource information to the network signal forwarder according to the connection relation. The network signal forwarder establishes communication between one remote signal source and the baseband processing unit pool according to the network resource information.

Abstract: A scooter includes a lower body with a first end and a second end, a rear wheel rotatably supported by the first end, an elongated front body with a lower end and an upper end, a guide fixed within the front body extending from the lower end to the upper end, an attachment member pivotably fixed to the second end of the lower body and engaged by the guide, and a front wheel rotatably supported by the lower end.

Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. Each remote signal source is configured to transmit an access signal. The baseband processing unit pool provides a baseband processing signal. The access management server provides an access state signal. The software defined network controller is electrically connected to the access management server and the network signal forwarder. The remote signal sources and the baseband processing unit pool are electrically connected to the network signal forwarder so that the access signal and the baseband processing signal are transmitted through the network signal forwarder. Signal transmission between the software defined network controller and the access management server are independent of the at least one network signal forwarder.

Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. The software defined network controller is electrically connected to the access management server and the network signal forwarder. The network signal forwarder includes at least two network connectors, each of which is configured to be connected to one remote signal source or the baseband processing unit pool. The software defined network controller obtains connection relation between the network connectors and the remote signal sources or the baseband processing unit pool, and provides network resource information to the network signal forwarder according to the connection relation. The network signal forwarder establishes communication between one remote signal source and the baseband processing unit pool according to the network resource information.

Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. Each remote signal source is configured to transmit an access signal. The baseband processing unit pool provides a baseband processing signal. The access management server provides an access state signal. Different maximum transmission rates are transmitted via the access state signal. When the baseband processing unit pool has authenticated one remote signal source, the baseband processing unit pool transmits an authentication notification signal to the access management server. Then, the access management server informs the software defined network controller according to the authentication notification signal to increase an upper limit of a signal transmission rate between the baseband processing unit pool and the authenticated remote signal source to a higher one of the maximum transmission rates.