Abstract: A camera system includes a driver rotating a rotor and an attached supporter. Two sound sensors on the supporter measure sound signals from an acoustic source. A camera on the supporter is aligned with the acoustic source when the driver rotates the supporter according to differences between the sound signals.

Abstract: The instant video messaging system includes a display unit, an image capture unit, and a capture adjustment sub-system. The display unit is configured to display consecutive images transmitted from a remote end via a network. The image capture unit is configured to capture the consecutive images in a predetermined area. The capture adjustment sub-system is connected to the display unit and the image capture unit and configured to locate select subject aspects, determine if the select subject aspects comply with a predetermined presentation, adjust the select subject aspects of the captured images, and transmit the consecutive images to the remote end via the network.

Abstract: A video instant messaging method includes: picking up information in front of a display panel from different directions to capture a number of facial images; extracting a number of groups of characteristic vectors from the facial images respectively; measuring a number of degrees of similarity each associated with a extracted characteristic vector using a group of reference characteristic vector; calculating a number of total degrees of similarity each associated with a facial image using the measured degrees of similarity; and transmitting the facial image having the highest total degree of similarity.

Abstract: An exemplary focusing method for enhancing resolution of an optical system is provided. The method includes: focusing on an object and obtaining an image of the object by a lens assembly of the optical system, using a designated point within a motion range of an auto focusing (AF) lens in the lens assembly to calculate; determine a first coordinate and a second coordinate of the AF lens according to resolution of the image; obtaining a direction and distance for positioning the AF lens according to the two coordinates, driving the AF lens to move along the direction of motion, and limiting the range of motion of the AF lens to obtain an optimum focusing location to focus on the object according to the motion distance. A related system is also provided.

Abstract: An image sensor module includes a circuit board (20), an image sensor (10) and a supporting board (30). The circuit board has a plurality of circuits formed thereon. The image sensor is arranged on one side of the circuit board and is electrically connected to the circuit board. The circuit board defines at least one through opening (22) therein. The supporting board is arranged on an opposite side of the circuit board. A protrusion (31) extends outwardly from the supporting board through the at least one through opening of the circuit board. The image sensor is mounted on the protrusion.

Abstract: A bicycle pedal comprises a central block combined with an upper block settled thereon and with a lower block settled thereunder. The central block, the upper block and the lower block are all formed in one piece, respectively. Further, the upper block and the lower block are identical in shape and have the same features because they are formed by means of an identical mold. The central block has an axial bolt tube and two stepping portions. The upper block and the lower block each provides a receiving portion, a plurality of ribs and two stepping portions. Thereby, when the receiving portions engage the axial bolt tube, the stepping portions of the central block, the upper block and the lower block can be combined as a stepping frame by means of a plurality of fastening components.

Abstract: A ball bearing assembly for a bicycle comprises a outer race, a ball cage, settled in the outer race, a cap, having a center hole and a ring portion extended axially from the periphery of the center hole, an inner race, with the inner surface thereof closely surrounding the outer surface of the ring portion, and a packing ring which is in an annular shape and having an annular flange around the bottom outer edge so that when the cap is put over the outer race to make the ball cage press upon the ball cage, the packing ring can be inserted into the center hole of the cap, and the flange is retained around the bottom of the ball cage. The disclosed ball bearing assembly is characterized by improved assembling accuracy and automatic center adjusting function.

Abstract: A folding pedal is disclosed to include a pedal body, which has a center spindle pivotally connectable to a crank of a bicycle, and two pedal blocks that are respectively pivotally coupled to top and bottom sides of the pedal body and turnable relative to each other between a first position where the two pedals are closed together and extending in same extending direction of the center spindle and a second position where the two pedals are opened and respectively extending in direction perpendicular to the center spindle.

Abstract: A folding pedal is disclosed to include a pedal body, which has a center spindle pivotally connectable to a crank of a bicycle, and two pedal blocks that are respectively pivotally coupled to top and bottom sides of the pedal body and turnable relative to each other between a first position where the two pedals are closed together and extending in same extending direction of the center spindle and a second position where the two pedals are opened and respectively extending in direction perpendicular to the center spindle.

Abstract: The present invention provides a multi-function pedal comprises a body, wherein the a pivot hole is dispose in the center for connecting to the crank of a bicycle; a first surface and a second surface, wherein the first surface is sloping at a predetermined gradient while the second surface is approximate parallel to the body; the first surface further comprising a first pedal set for a road-racing purpose and the second surface further comprising a second pedal set for a cross-racing purpose. When the pedal body keeps balanced on the pivot shaft of a bicycle, the first surface keeps in a position approximately horizontal due to gravitation. Thus, it would be more convenient for the user to treadle and apply the pedal.

Abstract: The head lock ring device comprises a seat being installed at one end of an outer sleeve for locating the bearing; an upper cover covering the seat for firmly securing the bearing; an upper end of the upper cover being formed with a retaining surface for being engaged with an spanner; and a seal cover engaged to one end of the upper cover; the seal cover having an enclosing ring and a driving end; the enclosing ring exactly enclosing the retaining surface; the driving end being engaged with a spanner; an inner wall of the seal cover being formed with an inner thread; the inner thread being engaged to the respective thread of the front fork tube so that the seal cover being aligned to the center of the upper cover and the front fork tube; thus the head lock ring can be assembled to the front fork tube easily.

Abstract: A pedal having two treading surfaces comprises a pedal body, retaining pieces, and an elastic positioning device. A front end and a rear end of the pedal body are formed as a receiving portion. The two retaining pieces are pivotally installed at a receiving portion at two opposite sides of the pedal body. Each retaining piece has three operation surfaces The first operation surface and second operation surface are at two opposite sides. The third operation surface is between the first operation surface and the second operation surface. The elastic positioning device is formed by a positioning piece and two elastomers. The positioning piece is locked to the receiving portion by the screw. A screw rod passes through the two elastomers so that the two elastomers are pivotally installed in the retaining piece. By above components, a pedal having two treading surfaces are assembled with less components.

Abstract: A capacitor charging device for a flash, finishes charging the flash capacitor in a gradual manner. It has a flash capacitor, a voltage transforming circuit, a voltage mode pulse width modulation (PWM) control circuit and a charging control circuit. The charging control circuit has a time control capacitor to make the pulse width of the pulse voltage output from the voltage mode PWM control circuit increase gradually. The voltage transforming circuit is driven to provide a gradually increasing induced current to the flash capacitor to reduce the damage of the external circuit, flash capacitor and rechargeable battery.

Abstract: A bicycle head tube and ball bearing mounting arrangement in which two gasket rings are respectively mounted in expanded top and bottom receiving portions of a head tube to support a respective ball bearing assembly in each end of the head tube, which ball bearing assembly supports a handlebar stem and front fork assembly in the head tube, the gasket rings each having a curved inner diameter fitted over the bottom edge of the respective ball bearing assembly to prevent direct contact of the bottom edge of the respective ball bearing assembly from direct contact with the respective expanded receiving portion of the head tube.

Abstract: A bicycle head tube and ball bearing mounting arrangement in which two gasket rings are respectively mounted in expanded top and bottom receiving portions of a head tube to support a respective ball bearing assembly in each end of the head tube, which ball bearing assembly supports a handlebar stem and front fork assembly in the head tube, the gasket rings each having a curved inner diameter fitted over the bottom edge of the respective ball bearing assembly to prevent direct contact of the bottom edge of the respective ball bearing assembly from direct contact with the respective expanded receiving portion of the head tube.

Abstract: A bottom bracket bearing axle mounting arrangement includes a bottom bracket bearing axle inserted through a bottom bracket, two ball races mounted on the bottom bracket bearing axle to support a respective set of steel balls around the bottom bracket bearing axle, and two conical, externally threaded, split stop members respectively threaded into a respective inner thread at each of two opposite ends of a bottom bracket to hold two sets of steel balls on the respective ball race.

Abstract: A bottom bracket bearing axle mounting arrangement includes a bottom bracket bearing axle inserted through a bottom bracket, two ball races mounted on the bottom bracket bearing axle to support a respective set of steel balls around the bottom bracket bearing axle, and two conical, externally threaded, split stop members respectively threaded into a respective inner thread at each of two opposite ends of a bottom bracket to hold two sets of steel balls on the respective ball race.

Abstract: A head lock ring assembly includes a ball bearing mounted on the head tube of a bicycle at a top and holding a set of steel balls outside the head tube, and a cover shell assembly formed of a cover shell, a first split ring, a second split ring, a rubber ring, and a locating cap, the cover shell assembly being covered on the ball bearing to lock the handlebar stem and the front fork of the bicycle for enabling the handlebar stem and the front fork to be rotated relative to the head tube, wherein the locating cap has a bottom flange inserted into the cover shell to hold down the first split ring and the second split ring in a receiving chamber in the cover shell around the handlebar stem and the front fork; the rubber ring is mounted around the locating cap above the bottom flange, and peripherally partially engaged into an inside annular groove in the cover shell to secure the cover shell, the first split ring, the second split ring and the locating cap together for quick installation.

Abstract: A bicycle front fork and head tube mounting arrangement includes a front fork having a tubular top shaft and an annular bearing portion around the top shaft, a head tube sleeved onto the top shaft of the front fork and supported on a ball bearing in the annular bearing portion of the front fork, a locating ring supported on a ball bearing in the top end of the head tube around the top shaft of the front fork, a split screw cap tightened up with a locating screw and threaded into an inner thread in the locating ring, a ruuber ring mounted in an inside annular groove in the split screw cap and disposed in close contact with the periphery of the top shaft of the front fork, and a tightening up screw threaded into a radial screw hole on the locating ring to hold down the split screw cap.