摘要:
While locating a license plate of a moving vehicle on consecutive images, motion detection is first performed on the consecutive images to detect a moving vehicle image, which is segmented using edge detection, and the segmented moving vehicle image is analyzed to retrieve characteristics for locating a license plate image and determining characters on the located license plate image. As a result, a precise location of the license plate is thus precisely located for further recognition no matter what weathers in which the consecutive images are recorded. The above-mentioned technique requires merely few calculations, is easily implemented, and may be applied on an intelligent digital video recording (DVR) system including many computer-vision functions.
摘要:
A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
摘要:
A light-emitting diode (LED) structure and a method for manufacturing the LED structure are disclosed for promoting the recognition rate of LED chips, wherein a roughness degree of the surface under a first electrode pad of a first conductivity type is made similar to that of the surface under a second electrode pad of a second conductivity type, so that the luster shown from the first electrode pad can be similar to that from the second electrode pad, thus resolving the poor recognition problem of wire-bonding machines caused by different lusters from the first and second electrode pads.
摘要:
An embodiment is a method for semiconductor packaging. The method comprises attaching a chip to a carrier substrate through a first side of a jig, the chip being attached by bumps; applying balls to bond pads on the carrier substrate through a second side of the jig; and simultaneously reflowing the bumps and the balls. According to a further embodiment, a packaging jig comprises a cover, a base, and a connector. The cover has a first window through the cover. The base has a second window through the base. The first window exposes a first surface of a volume intermediate the cover and the base, and the second window exposes a second surface of the volume. The first surface is opposite the volume from the second surface. The connector aligns and couples the cover to the base.
摘要:
A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
摘要:
A loop type heat dissipating apparatus with a sprayer for use in heat transfer between a heat source and a heat sink includes an evaporator, a condenser, and a working fluid. The evaporator contacts the heat source and includes a first chamber, a second chamber, and a sprayer disposed between therebetween. The condenser contacts the heat sink and includes a third chamber communicating with the second chamber and a wick structure disposed on one side of the third chamber. The working fluid fills the loop type heat dissipating apparatus and is turned into microdroplets via a sprayer. The sprayer impinges the microdroplets into the second chamber where the microdroplets are then evaporated by the heat source before proceeding to the third chamber for condensation, liquefaction and adhering to the wick structure. Eventually, the working fluid flows back to the first chamber under a pumping force actuated by the sprayer and completes the cycle.
摘要:
A micro-spray system resonance frequency modulation method and device designed to minimize resonance frequency drift during atomization involves using a resonance frequency modulation unit for modulating resonance frequency and nodes, controlling and calibrating resonance frequency, and performing real-time measurement and correction to prevent operating frequency from drifting beyond a preferred operating frequency range, with a view to increasing spray flow and spray area, minimizing effects of ambient factors, and overcoming drawbacks of prior art.
摘要:
A hinge for temples of eyeglasses has a sidewise rectangular block extending sidewise from its body to fit in a hole of a bent projection of a lens rim, and an ear with a threaded hole at the rear end for a screw to engage. The screw also engages with a threaded hole of an ear at the front end of a temple so that the hinge may be combined with the temple. And the sidewise block of the hinge has several slanting saw-teeth on two opposite vertical sides to engage the walls defining the hole of the bent projection of the lens rim after the block is fitted in the hole so that the hinge may be firmly combined with the lens rim.
摘要:
An embodiment is a method for semiconductor packaging. The method comprises attaching a chip to a carrier substrate through a first side of a jig, the chip being attached by bumps; applying balls to bond pads on the carrier substrate through a second side of the jig; and simultaneously reflowing the bumps and the balls. According to a further embodiment, a packaging jig comprises a cover, a base, and a connector. The cover has a first window through the cover. The base has a second window through the base. The first window exposes a first surface of a volume intermediate the cover and the base, and the second window exposes a second surface of the volume. The first surface is opposite the volume from the second surface. The connector aligns and couples the cover to the base.
摘要:
A nozzle plate suited for a droplet generator is provided. The nozzle plate includes a nozzle layer and at least one filler. The nozzle layer has a nozzle and at least one trench. The nozzle passes through the nozzle layer. The trenches apart from the nozzle are formed on a surface of the nozzle layer around the nozzle. The filler is filled in the trench. The wetting angle of the surface of the filler is different from the wetting angle of the surface of the nozzle layer. The nozzle plate has higher surface wear resistance and lower probability of jamming at the nozzle.