Abstract: In a backlight apparatus, a master driving circuit generates a transmission frame including a training period including a clock training pattern and a data period including a plurality of data packets respectively corresponding to the plurality of blocks. A plurality of slave driving circuits correspond to the plurality of blocks, respectively, and are connected to the master driving circuit in a daisy chain structure. Each slave driving circuit receives the transmission frame through the daisy chain structure, recovers a clock based on the clock training pattern, and drives the plurality of light emitting elements included in a corresponding block among the plurality of blocks based on its own data packet among a plurality of data packets.

Abstract: Systems, methods, and computer-readable media are described for compact radar systems. In some examples, a compact radar system can include a first set of transmit antennas, a second set of receive antennas, one or more processors, and at least one computer-readable storage medium storing computer-executable instructions which, when executed by the one or more processors, cause the radar system to coordinate digital beam steering of the first set of transmit antennas and the second set of receive antennas, and coordinate digital beam forming with one or more of the second set of receive antennas to detect one or more objects within a distance of the radar system.

Abstract: An actuator device with an actuator cup having a first end and a second end. The actuator cup defines a storage chamber containing a pyrotechnic material to produce gas. The storage chamber also includes a coolant. At least one electrical connection coupled to the first end, the electrical connection in reaction initiating communication with the pyrotechnic material. The second end of the actuator cup includes a concave surface before actuation of the pyrotechnic material and during the actuation of the pyrotechnic material the second end transitions from the concave surface to a convex surface.

Abstract: An actuator assembly that includes an actuator device. The actuator device includes a tubular housing with a first end and a second end, the tubular housing defining a storage chamber containing a pyrotechnic material to produce gas. At least one electrical connection is coupled to the first end, the electrical connection in reaction initiating communication with the pyrotechnic material. An actuator housing that partially encompasses the tubular housing, wherein an outer surface of the actuator housing comprises a hexagon shaped portion that extends along a longitudinal direction of the actuator housing. An assembly housing at least partially encompasses the actuator device, wherein an inner surface of the assembly housing comprises an engaging surface portion that extends along a longitudinal direction of the assembly housing that corresponds to and slidably engages with the hexagon shaped portion of the actuator housing.

Abstract: Ladder hanger systems and methods are disclosed, including a hanger assembly engaged with a ladder, the hanger assembly comprising: a plate having a longitudinal axis, a front having a textured surface, and a back; a first track and a second track connected to the back of the plate, the first track substantially aligned with the second track along the longitudinal axis, the first track spaced longitudinally from the second track; a first clamp moveably engaged with the first track, a second clamp moveably engaged with the second track; and mounting hooks connected to the plate between the first track and the second track, the mounting hooks forming a receiving space for a rung of a ladder, engaged with the first rung, and positioned between a pair of spaced apart rails of a side rail assembly.

Abstract: Ladder hanger systems and methods are disclosed, including a hanger assembly engaged with a ladder, the hanger assembly comprising: a plate having a longitudinal axis, a front having a textured surface, and a back; a first track and a second track connected to the back of the plate, the first track substantially aligned with the second track along the longitudinal axis, the first track spaced longitudinally from the second track; a first clamp moveably engaged with the first track, a second clamp moveably engaged with the second track; and mounting hooks connected to the plate between the first track and the second track, the mounting hooks forming a receiving space for a rung of a ladder, engaged with the first rung, and positioned between a pair of spaced apart rails of a side rail assembly.

Abstract: An actuator device with an actuator cup having a first end and a second end. The actuator cup defines a storage chamber containing a pyrotechnic material to produce gas. The storage chamber also includes a coolant. At least one electrical connection coupled to the first end, the electrical connection in reaction initiating communication with the pyrotechnic material. The second end of the actuator cup includes a concave surface before actuation of the pyrotechnic material and during the actuation of the pyrotechnic material the second end transitions from the concave surface to a convex surface.

Abstract: An actuator assembly that includes an actuator device. The actuator device includes a tubular housing with a first end and a second end, the tubular housing defining a storage chamber containing a pyrotechnic material to produce gas. At least one electrical connection is coupled to the first end, the electrical connection in reaction initiating communication with the pyrotechnic material. An actuator housing that partially encompasses the tubular housing, wherein an outer surface of the actuator housing comprises a hexagon shaped portion that extends along a longitudinal direction of the actuator housing. An assembly housing at least partially encompasses the actuator device, wherein an inner surface of the assembly housing comprises an engaging surface portion that extends along a longitudinal direction of the assembly housing that corresponds to and slidably engages with the hexagon shaped portion of the actuator housing.

Abstract: Ladder hanger systems and methods are disclosed, including a hanger assembly engaged with a ladder, the hanger assembly comprising: a plate having a longitudinal axis, a front having a textured surface, and a back; a first track and a second track connected to the back of the plate, the first track substantially aligned with the second track along the longitudinal axis, the first track spaced longitudinally from the second track; a first clamp moveably engaged with the first track, a second clamp moveably engaged with the second track; and mounting hooks connected to the plate between the first track and the second track, the mounting hooks forming a receiving space for a rung of a ladder, engaged with the first rung, and positioned between a pair of spaced apart rails of a side rail assembly.

Abstract: A battery charging method, and a battery pack using the same. In the battery charging method, constant-current charging is performed in a plurality of phases, and a magnitude of charge current with which a battery is charged is determined according to a charge amount of the battery. The charge amount may be determined by measuring the voltage of the battery or by integrating the charging current over time. When the battery charging method is used, a battery charging time is reduced and the battery is less apt to be overcharged.

Abstract: A sheet stacking tray assembly may include a tray having a lead edge surface, a tray exit ramp having a first end and a second end, and a feeder having a feeder edge. The first end of the tray exit ramp may be configured to connect to the lead edge surface. The tray exit ramp may be convex relative to the lead edge surface and may extend beyond the lead edge surface. The tray exit ramp may include one or more first anti-stub surfaces, that may be configured to be positioned below a lead edge of a sheet in a sheet stack. The feeder edge of the feeder may include one or more second anti-stub surfaces that are complementary to the first anti-stub surfaces. The feeder edge may be configured to interconnect with the second end of the tray exit ramp to form a transition surface.

Abstract: A sheet stacking tray assembly may include a tray having a lead surface and an elevate plate. The lead surface may include one or more first geometric protuberances. At least one edge of the elevate plate may include one or more second geometric protuberances that are complimentary to the first geometric protuberances. The lead surface may be configured to interlock with the edge of the elevate plate to form a support area for one or more sheets.

Abstract: A sheet stacking tray assembly may include a tray having a lead edge surface, a tray exit ramp having a first end and a second end, and a feeder having a feeder edge. The first end of the tray exit ramp may be configured to connect to the lead edge surface. The tray exit ramp may be convex relative to the lead edge surface and may extend beyond the lead edge surface. The tray exit ramp may include one or more first anti-stub surfaces, that may be configured to be positioned below a lead edge of a sheet in a sheet stack. The feeder edge of the feeder may include one or more second anti-stub surfaces that are complementary to the first anti-stub surfaces. The feeder edge may be configured to interconnect with the second end of the tray exit ramp to form a transition surface.

Abstract: A sheet stacking tray assembly may include a tray having a lead surface and an elevate plate. The lead surface may include one or more first geometric protuberances. At least one edge of the elevate plate may include one or more second geometric protuberances that are complimentary to the first geometric protuberances. The lead surface may be configured to interlock with the edge of the elevate plate to form a support area for one or more sheets.

Abstract: A projectile retrieval system includes a screw drive for moving bullets and bullet fragments to move bullets from a bullet deceleration area to a remote location without the need for a person to handle the bullets. Preferably, the screw drive is configured so that there is no need to stop use of the bullet deceleration area while the screw drive is transporting the bullets. In a preferred embodiment, a vacuum system is also connected to a transport housing about the screw drive to move lead dust away from the bullet deceleration area.

Abstract: A combination book organizer and learning center which includes a body having a plurality of pockets of predetermined and varying shapes formed therein in which books having the same predetermined varied shapes are placed when not in use.

Abstract: A novel tube plug which may be used to plug selected tubes in a heat exchanger has a cap portion for substantially closing a heat exchanger tube and a tube engaging portion depending from the cap portion, for insertion into the tube to retain the tube plug. By applying solder to the tube plug, the tube is sealed off, without providing a large solder mass which could cause damage due to thermal stresses.