Abstract: An efficient approach to extract an object's position and orientation in a 3 dimensional space is disclosed. This approach combines inertial sensor data with ranging and imaging devices and establishes vision processing under leveled conditions as determined by the gravity vector. By determining a leveled condition, this approach provides an effective way to exploit the object's position and orientation along the horizontal plane from horizontal range measurements and simplify processing of image data, which maps the vertical plane information. The system can be used to aid the object detection and identification process.

Abstract: An alert device, which is adapted for mounting to a valve of a pneumatic object, is capable of detecting any decrease in the interior pneumatic pressure of the pneumatic object and generating a warning signal immediately therefor. The alert device includes a signal arrangement and a connector, wherein the signal arrangement includes a cap, a signal generator fittingly received in the cap, and a power supply arrangement comprising a first contact unit and a second contact unit, and the connector comprises a power inlet and a power outlet.

Abstract: A spectacles set includes a primary spectacle frame and a detachable shelter frame constructed for mounting in front of the primary spectacle frame. The primary spectacle frame includes a frame body which includes a pair of lenses, two nose support units rearwardly extended from the frame body, and two magnetic holders provided at the two nose support units respectively. The detachable shelter frame includes a shelter frame for supporting two auxiliary lenses and two magnetic attaching arrangements each of which includes a supporting arm extending rearwardly from an inner side of the auxiliary lens of the shelter frame towards the respective magnetic holder and a magnetic seat which is connected to the supporting arm and extended to magnetically attach the respective magnetic holder of the primary spectacle frame so as to hold the shelter frame in front of the primary spectacle frame in position.

Abstract: A nightlight battery charger is constructed to be normally plugged in a wall socket to function as a nightlight so that the user can easily find and locate the battery charger anytime whenever the user needs it. The nightlight battery charger includes a charger casing having a main casing and a battery cover, wherein the main casing has at least one battery compartment for at least a rechargeable battery to be disposed therein, an nightlight system which includes at least one illuminator for generating illumination, a plurality of battery terminals adapted for electrically connecting at least one rechargeable battery, a power input supplying power to light up the illumination unit, a recharging electric circuit electrically connected to the battery terminals and the power input for transmitting power to charge up the rechargeable battery t, and an exchangeable lens card for protecting the illumination unit.

Abstract: A portable stack lamp includes a base supported by a supporting device, such as an extensible tripod and a plurality of rolling wheels, two or more lamp units stacked up to form a stack-up lamp body mounted on said base, and a cover which is adapted to cover a top opening of the housing of the lamp unit having a handle affixed thereon. The portable stack lamp is arranged to provide 360 degrees illumination so as to produce luminous beams in all directions while the user is able to selectively increase or decrease its luminous intensity by simply stacking up more or less lamp unit easily anytime. Therefore, the portable stack lamp can illuminate the surrounding that not only minimizes the number of work lamps to be used but also saves both the electrical energy and illumination cost.

Abstract: A filtering process is adapted for eliminating the need of prediscretizing a continuous-time differential model into a discrete-time difference model. It provides a universal robust solution to the most general formulation, in the sense that the system dynamics are described by nonlinear continuous-time differential equations, and the nonlinear measurements are taken at intermittent discrete times randomly spaced. The filtering process includes the procedures of validating the measurement using fuzzy logic, and incorporating factorized forward filtering and backward smoothing to guarantee numerical stability. It provides users a reliable and convenient solution to extracting internal dynamic system state estimates from noisy measurements, with wider applications, better accuracy, better stability, easier design, and easier implementation.

Abstract: A sports utility stroller includes a boundary frame including a top and bottom frame to form a playpen cavity therebetween, a stroller frame including a pair of side frames, which supports two sides of the boundary frame, each including a first side frame leg and a second side frame leg pivotally connected with each other, and a pair of locking arrangements for securely locking up the two side frames so as to retain the boundary frame at an unfolded position, wherein at the unfolded position, a top frame is lifted up from the bottom frame to form the playpen cavity having a predetermined depth, and at a folded position, the first and second side frame legs are pivotally folded to drop the top frame towards the bottom frame, so as to minimize the depth of the playpen cavity.

Abstract: A sports skills training arrangement, which is provided to promote muscle memory of a user, includes an arm loop strap adapted for fittingly encircling an upper arm of the user, a tension strap having a first end and a second end attached to the arm loop strap, a body connector affixed to the first end of the tension strap for detachably attaching to a waist portion of the user, a waist adjuster defining a control portion of the tension strap between the second end thereof and the waist adjuster and a waist loop portion of the tension strap for fittingly fastening around the waist portion of the user, and a length adjustment buckle for adjusting a length of the control portion of the tension strap. Therefore, a distance between the arm and the waist portion of the user is limited to promote coordinated arm and body movements.

Abstract: A safety piezoelectric lighter incorporates with a safety arrangement which includes an ignition cap having a locker cavity. A locking unit includes a locking latch extended from an inner wall of the casing and a locker arm disposed in the locker cavity of the ignition cap. An operation button slidably mounted on the ignition cap for moving the locker arm to an unlocked position. A resilient element is arranged for applying an urging pressure against the locker arm so as to normally retain the locker arm in a locking position that the locker arm is biased against the locker latch so as to block up the ignition cap from being slid downward for ignition. A user must operate the operation button for moving the locker arm away from the locking latch, so that the ignition cap is capable of being slid downward to ignite the piezoelectric lighter.

Abstract: The cushioned seat and back support, which is adapted for mounting on a chair frame of a collapsible chair, includes a support layer, a cover layer overlapped with the support layer, and a cushion layer sandwiched between the support layer and the cover layer, wherein the back support portion of the support layer is mounted to back frame legs of the foldable chair frame and the seat support portion of the support layer is supported by two front upper frame joints of the foldable chair frame, so as to substantially mount the cushioned seat and back support on the foldable chair frame.

Abstract: A magazine loader includes a loading holder and an ammo pusher. The loading holder has a supplying opening end, an opposed discharging opening end, a feeding channel extended from the supplying opening end to the discharging opening end for slidably receiving a plurality of ammos, and a guiding arrangement provided within the feeding channel, wherein the discharging opening end of the loading holder is capable of detachably mounting on an opening of a magazine such that the feeding channel of the loading holder is adapted for aligning with the opening of the magazine. The ammo pusher, having a pusher head, is slidably engaged with the guiding arrangement to substantially guide the pusher head sliding from the supplying opening end of the loading holder to the discharging opening end thereof for pushing the ammos within the feeding channel of the loading holder into the magazine.

Abstract: A spiral propeller provides a better secure and a more reliable spiral comprising spiral-lifting wheels, interlocking wheel interlocked with the spiral-lifting wheel, and fixed track supporting the interlocking wheel; the spiral lifting wheel is a rotating wheel with spiral external teeth, which is fixed at the top of the compartment, so as to drive the compartment for upward and downward movements, and interlock with the interlocking wheel; a interlocking rotating wheel of truncated cone shape, which can rotate along the axial direction of the wheel itself; a fixing track is set up between the guide brackets of the elevator, i.e., between the vertical supporting brackets of the guide bracket, in the appropriate locations are set with interlocking wheels.

Abstract: A stroller wheel structure includes a wheel frame and a stroller wheel coaxially mounted thereto. The wheel frame includes a hub body for rotatably mounting to a stroller and a ring shaped rim body, which is coaxially mounted to the hub body, having a first side, an opposed second side, and a plurality of transverse through slots spacedly provided on the rim body to communicate the first side with the second side. The stroller wheel includes a solid core wheel body having a ring shaped coaxially mounted on the rim body, two spaced apart sidewalls radially extended from inner circumferential edges of the wheel body to cover the first and second sides of the rim body respectively, and a plurality of reinforcing ribs integrally extended between the sidewalls through the transverse through slots of the rim body respectively, so as to substantially mount the stroller wheel around the wheel frame.

Abstract: A tape measure includes a housing assembly including a casing having two opposed sidewalls, a receiving cavity forming therebetween and an opening communicating with the receiving cavity, and a supporting axle having two ends supported at the sidewalls respectively, a tape reel which is disposed in the receiving cavity and is rotatably supported by the supporting axle, an elongated measuring blade, which is disposed in the receiving cavity, having an outer end being blocked at the opening of the casing and arranged to extend out of the casing, a retracting device for winding up the measuring blade in a coil rolled manner about the tape reel, and a friction reduction device provided between the supporting axle and the tape reel for substantially reducing a friction therebetween so as to enhance a rotational movement of the tape reel with respect to the supporting axle.

Abstract: A worktable, which is incorporated with a cutting machine, includes a table body and a cutting end support. The table body has at least a guiding rail formed on an upper surface for guiding a cutting pathway of a saw blade wherein the guiding rail has an opening end portion extended from an edge of the table body. The cutting end support is mounted on the table body at the opening end portion of the guiding rail. The saw blade is adapted to cut through the cutting end support to form a cutting groove when the saw blade is suspendedly slid along the opening end portion of the guiding rail. Therefore, a bottom side of an edge portion of the work piece is substantially supported by the cutting end support when the saw blade cuts the edge portion of the work piece through the cutting groove.

Abstract: An earphone without impulse noise for protection against conductive hearing loss includes an earphone housing and a loudspeaker mounted in a sound chamber therein. A front end of the earphone housing has an earplug adapted to be hanged between the tragus and the antitragus of the external ear while a rear end thereof has a hood with a hollow sound chamber. A loudspeaker is supported in the hollow sound chamber of the hood around which a plurality of sound holes are distributed, wherein a sound output end of the loudspeaker must be positioned facing to the hood and opposite to the earplug. A conductive cord is connected at the bottom end of the earphone housing for transmitting electric current to the loudspeaker.