Abstract: A protection system for a high-voltage component includes a switching circuit and a protection controller. The switching circuit changes a variable arrangement of multiple battery packs between a parallel arrangement and a series arrangement. The protection controller commands the switching circuit into the series arrangement in response to a recharging session, commands a current flow in the recharging session, measures a measured voltage between an input node and a floating chassis ground of the high-voltage component, advances a timer while the measured voltage indicates a presence of an improper voltage, and cancels the recharging session in response to the presence of the improper voltage for greater than an exposure time. The recharging session provides a direct-current fast-charging voltage to battery packs in the series arrangement, and is greater than the battery voltage.

Abstract: An emergency disconnect circuit for use with a high-voltage (HV) bus of a battery electric system, e.g., aboard a mobile system, includes a pyrotechnic switch and a manual switch. The pyrotechnic switch configured irreversibly opens in response to an electronic triggering signal to disconnect an HV battery pack from the HV bus in a first manner. The manual switch is arranged on a low-voltage (LV) bus in series with and between the pyrotechnic switch and an LV power supply. Transition of the manual switch from an open position to a closed position connects the LV power supply to the pyrotechnic switch. This causes the LV power supply to discharge the triggering signal to the pyrotechnic switch. When used aboard a mobile system, an electronic monitoring unit generates the triggering signal in a second manner in response to a threshold impact event.

Abstract: A chamfering knife holder includes a mounting cover, a protrusion, a mounting assembly, a first containing space, a second containing space, and a resilient element. The protrusion circularly protrudes from an internal peripheral surface of the mounting cover and is enclosed to form a through hole. The mounting assembly is detachably and movably mounted in an interior of the mounting cover. The first containing space and the second containing space are both enclosed by the mounting cover, the protrusion, and the mounting assembly and communicate with each other via the through hole. The resilient element is selectively disposed in the first containing space or the second containing space for canceling out a pushing force or a pulling force acting on a chamfering knife and prevent the chamfering knife from being damaged.

Abstract: A grinding wheel assembly has a tool holder, a mounting shaft connected to the tool holder, and a grinding wheel mounted on the mounting shaft. The tool holder has a first coolant passage defined through the tool holder. The mounting shaft has a second coolant passage communicating with the first coolant passage. The grinding wheel has multiple third coolant passages defined through the grinding wheel and communicating with the second coolant passage. The first coolant passage, the second coolant passage, and the multiple third coolant passages are utilized for a coolant to flow through. Thereby, the grinding wheel and a workpiece can be cooled down without setting up any pipeline and nozzle for the coolant in a grinding machine.

Abstract: An IC device includes a first active area extending away from a first endpoint in a first direction, a second active area extending away from a second endpoint in the first direction, a third active area positioned between the first and second active areas, and a gate structure perpendicular to the first through third active areas. The gate structure overlies each of the first and second endpoints and the third active area, and the third active area extends away from the gate structure in a second direction opposite the first direction.

Abstract: A semiconductor device includes a first power rail and a second power rail; a third power rail and a fourth power rail, the fourth power rail aligned with the third power rail in a column direction; a first cell arranged between the first power rail and the second power rail; a second cell arranged between the first power rail and the third power rail; and a dummy fin structure extending in the row direction and overlapped with the fourth power rail, wherein the dummy fin structure is configured as a non-functional device. A first active region of the first cell includes a first width in the column direction greater than a second width, in the column direction, of a second active region in the second cell.

Abstract: A method for controlling projectors includes identifying a first projector and a second projector by using a database, acquiring a first control code of the first projector and a second control code of the second projector after the first projector and the second projector are identified, and generating at least one control signal to the first projector and the second projector for controlling operational actions of the first projector and the second projector according to the first control code and the second control code.

Abstract: A sleeping occupant crash protection system includes an occupant sleeping compartment positioned within an autonomous vehicle. A substantially flat platform of the occupant sleeping compartment supports an occupant reclining in a horizontal sleep position. An elastic bedsheet is positioned in direct contact with an upper surface of the platform positioned between the occupant and the platform. A sensing system is in communication with the occupant sleeping compartment and triggers deployment of a bedsheet displacement system during a vehicle rapid deceleration event.

Abstract: A three-dimensional (3D) sensing device is configured to sense an object. The 3D sensing device includes a flood light source, a structured light source, an image sensor, and a controller. The controller is configured to perform: commanding the flood light source and the structured light source to emit a flood light and a structured light in sequence; commanding the image sensor to sense a first reflective light and a second reflective light in sequence, so as to obtain a first image frame and a second image frame; combining the first image frame and the second image frame into a determination frame; and determining that the object is a specular reflection object in response to determining that the determination frame has at least two spots having gray levels satisfying a predetermined condition. A specular reflection object detection method is also provided.

Abstract: A projection device, including an illumination system, a first light valve, a light modulation module, and a projection lens, is provided. The illumination system is configured to provide an illumination light beam. The first light valve is disposed on a transmission path of the illumination light beam to convert the illumination light beam into an image light beam. The light modulation module is replaceably disposed in the projection device and includes a second light valve located on the transmission path of the illumination light beam to modulate a grayscale value of the illumination light beam and reflect the illumination light beam to the first light valve. The light modulation module is located between the illumination system and the first light valve. The projection lens is disposed on a transmission path of the image light beam to project the image light beam out of the projection device.

Abstract: An audio compensation method is applied to a playback device which includes a first distance detector, a second distance detector, an audio output module and an operation processor. The operation processor executes the audio compensation method to acquire a projection distance and a relative angle of the playback device relative to a projection screen via the first distance detector and the second distance detector, to acquire an installation parameter of the playback device, to search at least one audio output setting from an audio setting table in accordance with the projection distance and the relative angle and the installation parameter, and utilize the audio output setting to drive the audio output module.

Abstract: A dataflow hierarchy protocol is implemented by one or more devices to optimize how the one or more devices process datagrams for network communications. The dataflow hierarchy considers various available network pathways for dataflow. A device implementing the dataflow hierarchy selects one or more of the available network pathways to provide low latency in data communication with other devices. The device may sample various available network pathways to determine pathway metrics (e.g., latency) and select one or more network pathways based on the metrics. The available network pathways can include pathways through one or more intermediary nodes, such as pathways through a game server, pathways through a cell tower, and pathways through a network.

Abstract: A one-way multiple cushions and chambers vehicle airbag assembly includes an airbag body having a primary airbag chamber and a secondary airbag chamber. At least one one-way vent valve provides a gas interconnection passage between the primary airbag chamber and the secondary airbag chamber.

Abstract: An automobile vehicle deployable cocoon airbag system includes an airbag cushion having a first side oriented in a vertical configuration in a non-deployed condition and a second side oriented substantially ninety degrees from the first side in the non-deployed condition and adapted to receive an occupant on the second side providing an occupant sleeping position. At least one retracting tether is connected to the first side and the second side and is retracted using a retraction mechanism. The retraction mechanism acts upon receipt of a signal to retract the at least one retracting tether and pull the second side toward the first side thereby enclosing the occupant between the first side and the second side in a deployed condition of the airbag cushion. At least one energy absorbing (EA) element is connected to the airbag cushion acting to restrict a fore-aft motion of the airbag cushion.

Abstract: A two-way nut spanner has a handle and an engaging head having a base, a first engaging portion and a second engaging portion. The base has a first abutting surface and a second abutting surface respectively located on two opposite sides of the base. The first engaging portion protrudes from the first abutting surface of the base and has multiple first engaging blocks. Each of the engaging blocks has a first inclined surface. The second engaging portion protrudes from the second abutting surface of the base and has a second engaging block having a second inclined surface. The engaging head has the first engaging portion and the second engaging portion with different engaging structures to enhance convenience for using the two-way nut spanner.

Abstract: Disclosed are a sonotrode and its use for transdermal delivery of therapeutic or cosmetic compounds. The sonotrode 10 comprises a tubular neck 14 attached at a proximal end to a solid head 12 and ending at a distal end in a flared foot 16. When coupled to an ultrasonic transducer and applied to skin of a human or animal, the sonotrode enhances the delivery of compounds into the skin.

Abstract: A semiconductor device includes a first and a second power rails extending in a row direction, a third power rail extending in the row direction between the first and second power rail, and a first cell arranged between the first second power rails. A cell height of the first cell in a column direction perpendicular to the row direction is equal to a pitch between the first and second power rails. The semiconductor device also includes a second cell arranged between the first and third power rails. A cell height of the second cell in the column direction is equal to a pitch between the first and third power rails. A first active region of the first cell includes a first width in the column direction greater than a second width, in the column direction, of a second active region in the second cell.