Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing, a first feed portion, and a second feed portion. The housing includes a metallic side frame, a metallic middle frame, and a metallic back board. The metallic side frame defines a first gap and a second gap. The metallic back board defines a slot. The slot, the first and second gaps divide a first radiation portion and a second radiation from the metallic side frame. The first feed portion is electrically connected to the first radiation portion. The second feed portion is electrically connected to the second radiation portion. The metallic middle frame and the metallic back board are connected to each other to form a system ground plane to provide a ground for the antenna structure.

Abstract: Methods of and systems for producing an olefin are disclosed. A paraffin is dehydrogenated to produce a mixture comprising the olefin and unreacted paraffin. The mixture is then fed to an extractive distillation unit that uses soybean oil as a solvent to extract at least some n-butane from the mixture.

Abstract: The invention discloses a buckle ring device for a memory slot. A memory module is able to be inserted into the memory slot. The memory slot is provided at two sides thereof with a seat, respectively. A clamp structure is pivotally connected to an inside of the seat. Two sides of the memory module inserted in the memory slot are clamped by the clamp structures. When the buckle ring device is assembled on the seat of the memory slot, the seat and the clamp structures can be used for constraining the displacement of the buckle ring device in XYZ axis directions, resulting in strengthening the clamping of the clamp structures to the memory module by the buckle ring device.

Abstract: An optical image recognition device and a method for fabricating the same are disclosed. The device includes a flexible printed circuit board, an image sensor, a glue, an optical collimator, a supporting ring, a sealant, and an optical filter. The top of the flexible printed circuit board is provided with a recess, the image sensor is located in the recess, the sidewalls of the image sensor and the recess are separated from each other, and the image sensor is coupled to the flexible printed circuit board through conductive wires. The glue adheres to the flexible printed circuit board and the image sensor and covers the conductive wires. The optical collimator is disposed on the image sensor. The supporting ring, disposed on the flexible printed circuit board, surrounds the glue and the optical collimator. The optical filter, disposed on the sealant, shields the optical collimator and the image sensor.

Abstract: A noise measuring device is provided. The noise measuring device includes a soundproof box, a sound receiving device, a holding device, and a driving device. The sound receiving device is disposed in the soundproof box. The holding device is disposed in the soundproof box and configured to hold a testing object. The driving device is connected with the soundproof box and configure to drive the soundproof box to rotate.

Abstract: An apparatus includes: a sprinkler configured for spraying liquid; a conduit with a nano-particle coated surface; a sensor associated with the conduit, wherein the sensor is configured to detect a signal corresponding to a film deposition on the nano-particle coated surface; and a controller coupled with the sensor and the sprinkler, wherein the controller is configured to regulate liquid spraying of the sprinkler over the nano-particle coated surface.

Abstract: Systems, devices, and methods related to Video Surveillance as a Service (VSaaS) are described. For example, a removable storage device, such as a secure digital (SD) memory card or a micro SD card, can be configured to run a virtual camera agent. When the removable storage device is inserted into a digital camera to provide a storage capacity for the digital camera, the agent can convert the video captured by the digital camera into video captured by a virtual camera. The virtual camera can be configured to be in compliance with the camera requirements of a VSaaS platform. Thus, a digital camera not in compliance with the platform can still be used with the platform through the deployment of the virtual camera that is enabled by the removable storage device.

Abstract: An audio-visual transmission device connected with a camera and a receiver is provided and includes a wireless module, a processor and a universal serial bus (USB) port. The wireless module is used for wireless connection with the camera to receive an audio-visual data transmitted from the camera. The processor transmits a connection request signal to the camera through the wireless module. The universal serial bus (USB) port is used for transmitting the audio-visual data. The camera transmits a connection acknowledgment signal and the audio-visual data back to the processor via the wireless module according to the connection request signal, and the receiver is connected to the audio-visual transmission device through the USB port to receive the audio-visual data.

Abstract: An audio-visual transmission device connected with a camera and a receiver is provided and includes a wireless module, a processor and a universal serial bus (USB) port. The wireless module is used for wireless connection with the camera to receive an audio-visual data transmitted from the camera. The processor transmits a connection request signal to the camera through the wireless module. The universal serial bus (USB) port is used for transmitting the audio-visual data. The camera transmits a connection acknowledgment signal and the audio-visual data back to the processor via the wireless module according to the connection request signal, and the receiver is connected to the audio-visual transmission device through the USB port to receive the audio-visual data.

Abstract: A fastening device for expansion cards that is capable of connecting to a slot on a normal motherboard and fastening an expansion card in the slot is disclosed. The fastening device includes a top pressing unit and two side fastening units, wherein the two side fastening units are connected to two ends of the top pressing unit, respectively, and each side fastening unit is provided with an opening. When two clip units disposed on the two ends of the slot pass through the openings of the two side fixing units respectively, the top pressing unit presses the top edge of the expansion card inserted into the slot and the two side fastening units respectively press and fasten the two clip units so as to restrain the clip units from unlocking and to prevent the expansion card from becoming loose in the slot.

Abstract: The invention provides a data storage device comprising a shell, a main circuit board, and an external connector. The shell comprises a plurality of vents. The main circuit board is placed in the shell, and covered by a fire protection material. The main circuit board is provided with a controller and a plurality of flash memory elements. The external connector is disposed outside the shell. When the data storage device is in a fire scene, the flash memory elements on the main circuit board can be avoided to be burned since the fire protection material covers the main circuit board. Further, the data storage device has a better heat dissipation and convection effect via the vents of the shell, such that the data storage device can cool down quickly, and thereby the integrity of data storage can ensured.

Abstract: An antenna structure includes a housing, a first feed source, and a second feed source. The first feed source is electrically coupled to a first radiating portion of the housing and adapted to provide an electric current to the first radiating portion. The second feed source is electrically coupled to one of a second radiating portion or a third radiating portion of the housing. The other one of the second radiating portion or the third radiating portion is electrically coupled to the first radiating portion.

Abstract: Systems, devices, and methods related to a Deep Learning Accelerator and memory are described. For example, a removable media (e.g., a memory card, or a USB drive) may be configured to execute instructions with matrix operands and configured with: an interface to receive a video stream; and random access memory to buffer a portion of the video stream as an input to an Artificial Neural Network and to store instructions executable by the Deep Learning Accelerator and matrices of the Artificial Neural Network. Such a removable media can be used to replace an existing removable media used in a surveillance camera to record video or images. The Deep Learning Accelerator can execute the instructions to generate analytics of the buffer portion using the Artificial Neural Network, enabling the surveillance camera that is upgraded via the use of the removable media to provide intelligent services based on the analytics.

Abstract: An optical keyswitch includes a keycap, a support mechanism, and a switch module. The support mechanism is disposed below the keycap and configured to support the keycap moving upward and downward, the support mechanism comprising a first frame and a second frame, the first frame having a sliding end. The switch module includes a circuit board, an emitter, and a receiver, the emitter and the receiver are electrically connected to the circuit board, and the emitter emitting an optical signal to the receiver. When the keycap is pressed, the first frame is driven by the keycap to slide substantially parallel to the circuit board and block the optical signal with the sliding end, so the switch module is triggered to generate a triggering signal.

Abstract: An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

Abstract: The invention provides a data storage device comprising a shell, a main circuit board, and an external connector. The shell comprises a plurality of vents. The main circuit board is placed in the shell, and covered by a fire protection material. The main circuit board is provided with a controller and a plurality of flash memory elements. The external connector is disposed outside the shell. When the data storage device is in a fire scene, the flash memory elements on the main circuit board can be avoided to be burned since the fire protection material covers the main circuit board. Further, the data storage device has a better heat dissipation and convection effect via the vents of the shell, such that the data storage device can cool down quickly, and thereby the integrity of data storage can ensured.

Abstract: Disclosed herein are novel bifunctional compounds and their uses for the treatment and/or prophylaxis of cancers.

Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing, a first feed portion, and a second feed portion. The housing includes a metallic side frame, a metallic middle frame, and a metallic back board. The metallic side frame defines a first gap and a second gap. The metallic back board defines a slot. The slot, the first and second gaps divide a first radiation portion and a second radiation from the metallic side frame. The first feed portion is electrically connected to the first radiation portion. The second feed portion is electrically connected to the second radiation portion. The metallic middle frame and the metallic back board are connected to each other to form a system ground plane to provide a ground for the antenna structure.

Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing, a first feed portion, and a second feed portion. The housing includes a metallic side frame, a metallic middle frame, and a metallic back board. The metallic side frame defines first and second gaps, and the metallic back board defines a slot. The slot, the first gap, and the second gap divide the metallic side frame to give a first radiation portion. The first and second feed portions are both electrically connected to the first radiation portion. When the first feed portion supplies a current, the current flows through the first radiation portion, toward the second gap to excite a first working mode. When the second feed portion supplies a current, the current flows through the first radiation portion, toward the first gap to excite a second working mode.