Abstract: An emergency lighting device with an auto-dimming detection function and used in an inverter system is provided. After receiving sensing signals from a sensor, a control unit of an emergency lighting device outputs signals for control of a dimmer to carry out dimming of a light source and control output power. No matter how many light emitting diodes are mounted in a light emitting diode module of the light source, a battery is further controlled to maintain a fixed output current by control of light brightness of the light source. Thereby not only luminous flux of the light source can be calculated accurately, use and arrangement of the emergency lighting device are easier. Installation cost is significantly reduced and manufacturers can label service time of the device accurately. The emergency lighting device is safer and more convenient to use.

Abstract: A digital pattern generation system comprises a memory and a controller. The controller is coupled the memory and is configured to remove redundant cells from a digital pattern file, generate a first updated digital pattern file and compare the first updated digital pattern file with the digital pattern file. Further a number of vertexes of a first arc of the first updated digital pattern file is reduced to generate a second updated digital pattern file. Additionally, a first cell of the second updated digital pattern file is replaced with an alternative version of the first cell to generate a third updated digital pattern file. Further, one or more polygons within the third updated digital pattern file is converted to one or more quad polygons to generate an optimized digital pattern file.

Abstract: In an embodiment, a device includes: an interposer including: a back-side redistribution structure; an interconnection die over the back-side redistribution structure, the interconnection die including a substrate, a through-substrate via protruding from the substrate, and an isolation layer around the through-substrate via; a first encapsulant around the interconnection die, a surface of the first encapsulant being substantially coplanar with a surface of the isolation layer and a surface of the through-substrate via; and a front-side redistribution structure over the first encapsulant, the front-side redistribution structure including a first conductive via that physically contacts the through-substrate via, the isolation layer separating the first conductive via from the substrate.

Abstract: An example wireless networking device (e.g., Access point) dynamically managing preamble puncturing for OFDM-based communications. The wireless networking device determines first criteria of a signal quality and further determines to allow preamble puncturing, wherein the signal quality of the determines the occupancy of a subchannel. Based on the determination to preamble puncture, apply dynamically, preamble puncturing to an adjacent subchannel. The wireless networking device further monitors the subchannel signal quality and determines based on a second criteria, an amount of bandwidth useable from an adjacent bandwidth. The wireless networking device, based on the second criteria, dynamically allocate bandwidth from the adjacent subchannel.

Abstract: Verifying that data has been correctly replicated to a replication target, including: replicating a dataset stored at a first computing system to a second computing system; and determining, based at least on a comparison of a first hash and a second hash, validity of the dataset stored at the second computing system, wherein the first hash is generated by applying a hash function to a copy of the dataset that is stored at the first computing system and the second hash is generated by applying the hash function to a copy of the dataset that is stored at the second computing system.

Abstract: An example electronic device includes a network communication interface to connect to a conference server, a central control device communication interface to connect to a local central control device, a microphone and a processor. The processor is to receive audio at the microphone and send the audio to the local central control device and to the conference server. The processor is to send the audio to the local central control device such that it is received by a nearby electronic device before the audio is received from the conference server by the nearby electronic device.

Abstract: In some examples, the disclosure describes an electronic device with a processing resource and a memory resource storing computer-readable instructions executable by the processing resource to determine a wireless metric associated with a first wireless signal path utilizing concurrent dual wireless bands between an access point and the electronic device and alter the first wireless signal path to a second wireless signal path that utilizes a single band between the access point and the electronic device.

Abstract: A battery device with thermal management includes at least one battery module, a positive terminal and negative terminal electrical cable wire, serving as the output and input path of the electric current for said battery device, and a fluid in a flow channel device. Said at least one battery module includes at least one rechargeable secondary battery cell, at least one heat exchangeable battery cell charging and discharging circuit, at least one module heat exchange interface, serving as the main path for the heat exchange of said at least one battery module to said fluid in said flow channel device. Said at least one heat exchangeable battery cell charging and discharging circuit comprises a heat exchange pipe and a metal structural element. Said module heat exchange interface comprises at least part of the surface of said heat exchange pipe, which is direct or indirect in contact with the system fluid.

Abstract: An example electronic device includes a network communication interface to connect to a conference server, a central control device communication interface to connect to a local central control device, a microphone and a processor. The processor is to receive audio at the microphone and send the audio to the local central control device and to the conference server. The processor is to send the audio to the local central control device such that it is received by a nearby electronic device before the audio is received from the conference server by the nearby electronic device.

Abstract: A random orbital sanding tool includes a power motor, a driving spindle connected to the power motor, an eccentric block connected to the driving spindle, a tool holder disposed on the eccentric block, and a sanding pad connected to the tool holder and indirectly driven by the power motor. The random orbital sanding tool includes a friction ring disposed on the tool holder, the friction ring contacts a surface of the eccentric block facing the sanding pad, the friction ring stops rotation of the tool holder and the sanding pad by a friction force exerting on the surface of the eccentric block when the power motor stops operation, the friction ring includes a base part protruding into a gap between the tool holder and the eccentric block, a sleeve part diverged and extended from the base part.

Abstract: In an example, an electronic device may include a network interface device having a first transceiver to communicate via a short-range wireless communication protocol and a second transceiver to communicate via the short-range wireless communication protocol. Further, the electronic device may include a processor connected to the network interface device. During operation, the processor may receive a request to search a first device in accordance with the short-range wireless communication protocol. Further, the processor may search a first radio frequency channel via the first transceiver to detect the first device. Furthermore, the processor may search a second radio frequency channel via the second transceiver to detect the first device. The first radio frequency channel and the second radio frequency channel may be searched in parallel.

Abstract: Verifying that data has been correctly replicated to a replication target, including: replicating a dataset stored at a first computing system to a second computing system; and determining, based at least on a comparison of a first hash and a second hash, validity of the dataset stored at the second computing system, wherein the first hash is generated by applying a hash function to a copy of the dataset that is stored at the first computing system and the second hash is generated by applying the hash function to a copy of the dataset that is stored at the second computing system.

Abstract: Described is a method of calibrating a camera. The method comprises defining an area observed in a field of view (FOV) of the camera as a region of interest (ROI). The method includes selecting a plurality of physical reference points in said ROI and obtaining for each reference point physical position coordinates. The method also includes obtaining from said camera FOV or camera image data pixel locations for each point of reference and pairing each pixel location with the physical position coordinates of its respective reference point. Then, a relationship is derived from the paired pixel locations and physical position coordinates to enable a selected or identified pixel location in the camera FOV or camera image data to be transformed to physical position coordinates for a corresponding physical location in said ROI.

Abstract: A method, an apparatus, a device, and a storage medium for displaying application performance management information are provided. The method includes: separately obtaining first and second performance status information of services provided by a first application and a second application; determining first and second display specifications of respective graphics corresponding to the first and second performance status information, to enable a ratio of the first display specification to the second display specification to be not greater than a preset value; and displaying the respective graphics corresponding to the first and second performance status information according to the determined first and second display specifications.

Abstract: An electric vehicle power system, comprises: an electric motor, configured to provide power to an electric vehicle; a main converter coupled with the electric motor, and being a DC-to-AC converter or a DC-to-DC converter; a main battery pack electrically connected to the main converter through a first DC-DC converter; and a fixed battery electrically connected to the main converter through a second DC-DC converter.

Abstract: A dust suction device includes a dust collection barrel, a supporting ring and a dust suction assembly, the barrel includes an inner space, an assembling opening communicating with the space, and at least two connectors disposed on the barrel, the opening has an opening diameter. The ring is placed at the opening, and has a ring outer diameter larger than the opening diameter, and a ring inner diameter. The assembly includes a shell and at least two connecting structures formed on an outer surface of the shell and used to restrict the assembly from separating from the barrel, the shell has at least one shell outer diameter smaller than the opening diameter, but larger than the ring inner diameter, the assembly has a use state by using the ring as a base and stacked above the barrel, and a storage state of being placed in the space.

Abstract: The present application provides a heat dissipation system and method for electronic devices. The system includes a heat dissipation unit attached to electronic component of an electronic device, a temperature and humidity sensor, a cooling unit and a controller. The controller is configured to obtain the dew point temperature of the space in which the cooling unit is disposed and to determine a coolant flow rate based on the dew point and the coolant temperature. In the event where the difference between the coolant temperature and the dew point is greater than a threshold, the heat dissipation unit receives the coolant under a first flow rate. In the event where the difference between the coolant temperature and the dew point is equal to or less than the threshold, the heat dissipation unit receives the coolant under a second flow rate lower than the first flow rate.

Abstract: A stand having a pivoting mechanism is included in a set of electronic device. The pivoting mechanism includes a first pivoting element, a second pivoting element pivotally connected to the first pivoting element, a multi-positioning assembly connected to the first and the second pivoting element, and a restoring element having two ends that are respectively contacting the first and the second pivoting element. When the second pivoting element is, respectively, at a first and a second position, a first and a second angle are formed between the first and the second pivoting element. The first angle is less than the second angle. The multi-positioning assembly temporarily positions the first pivoting element with the second pivoting element. When the second pivoting element is, respectively, at the first and the second position, the restoring element has a first and a second deformation. The first deformation is less than the second deformation.

Abstract: An electronic device is disclosed. The electronic device includes a first component, a second component, and a first bridge component configured to electrically connect the first component with the second component. The first component is configured to transmit a first signal downwardly without passing the first bridge component and the second component is configured to transmit/receive a second signal to/from outside of the electronic device. A transmission speed of the second signal is higher than a transmission speed of the first signal.

Abstract: Provided is a lentivirus packaging system, which comprises: a transfer plasmid comprising a nucleotide sequence of TAR-reserved-chimeric 5? long terminal repeat (LTR); at least one packaging plasmid comprising a nucleotide sequence encoding TAR RNA binding protein, a nucleotide sequence of rev gene, a nucleotide sequence of gag gene, and a nucleotide sequence of pol gene; and an envelope plasmid. Due to the expression of gene of TAR RNA binding protein by the packaging plasmids, the produced lentivirus has higher virus titer and can improve the transduction rate and the gene delivery efficiency during cell transduction. The present invention further provides a method of improving lentivirus production in a host cell, which comprises using the lentivirus packaging system to transfect the host cell. The present invention further provides a cell transduced by the lentivirus and a method of using the cell for treating cancer.