摘要:
A phacoemulsification system for operating a surgical handpiece having a handpiece; an irrigation fluid source for supplying irrigation fluid to the eye; an aspiration source coupled to the handpiece in order to aspirate the irrigation fluid from the eye through the handpiece; and a controller for controlling a vacuum in the handpiece, the controller comprising: a sensor for sensing the vacuum in the handpiece; an occlusion parameter, the occlusion parameter being a vacuum level corresponding to an occlusion of the handpiece or a flow rate corresponding to an occlusion of the handpiece; a maximum allowable vacuum level in the handpiece, the maximum allowable vacuum level having at least a first predetermined level; and a trigger value that is set based in part on the occlusion parameter.
摘要:
A process for preparing hollow polymer particles which comprises a seed-forming step for polymerizing a monomer mixture of an acid monomer having a carboxylic acid group and a non-ionic hydrophilic monomer in the presence of a polymerization initiator; a core-forming step for preparing a core, which can be swollen with an alkali, by polymerizing the monomer mixture of an acid monomer having a carboxylic acid group, a non-ionic hydrophilic monomer and a cross-linking agent to the seed latex; a shell-forming step in which a hydrophobic shell is formed on the hydrophilic core; and an alkali-swelling step.
摘要:
A magnetic card manufactured according to the present invention is composed of a base film; a first magnetic material coating layer applied on the base film for reading and writing variable information held in the magnetic card; and a second magnetic material coating layer applied on the first magnetic material coating layer, of which surface having a pattern formed by an angle, an interval and a thickness for giving the characteristics of the magnetic card.
摘要:
The present invention improves image quality by detecting and enhancing edges in an image. Images often include blurry or fuzzy edges that can obscure an image. An edge is a portion of an image separating two regions of substantially constant image intensity. An image can be examined on a pixel-by-pixel basis to find a candidate edge. When a candidate edge is found, a determination can made as to whether the candidate edge is a true edge. A true edge can be enhanced by amplifying the image intensity differences between pixels on the true edge and adjacent pixels not on the true edge. The present invention also provides a novel image processing filter for eliminating well-known noise from an image. The image processing filter can further improve edge enhancement by eliminating such noise prior to the edge detection and enhancement.
摘要:
A scanning format conversion circuit for performing the mutual conversion between a progressive scanning format and a zig-zag scanning format to read or write N.times.N discrete cosine transform coefficients from or into a memory in a coding process or a decoding process of a video system. The scanning format conversion circuit comprises a pure logic circuit including an up/down counting circuit, a down counting circuit, first to third selection circuits, a comparison circuit, a phase change circuit, and an accumulation circuit. With this construction, the mutual conversion between the progressive scanning format and the zig-zag scanning format is performed on the basis of the rule between the input orders and the actual positions of the discrete cosine transform coefficients. Therefore, the scanning format conversion circuit is capable of simplifying the implementation of ASIC and performing the scanning format conversion operation regardless of a block size.
摘要:
An improved motion vector extractor comprising a first pixel delay element for delaying pixel data of the previous frame by a one pixel interval, a second pixel delay element for delaying the pixel data of the previous frame by a horizontal line interval of a seek block, a third pixel delay element for delaying the pixel data of the previous frame by a seek block horizontal line and one pixel interval, an interpolation circuit for combining the pixel data of the previous frame and the delayed pixel data of the previous frame from the first to third pixel delay elements to produce at least one interpolation pixel data positioned between adjacent ones thereof, a fourth pixel delay element for delaying pixel data of the present frame to produce rectangularly arranged pixel data of the present frame, a plurality of MAD detectors, each of the plurality of MAD detectors subtracting a corresponding one of the interpolation pixel data from the interpolation circuit from a corresponding one of the rectangularly arranged pixel data of the present frame from the fourth pixel delay element to produce an MAD with respect to the corresponding pixel data of the present frame, and a comparator for comparing the MADs from the plurality of MAD detectors with one another and extracting a motion vector in accordance with the compared result.
摘要:
A fruit box made of metal or synthetic resin is disclosed so as to be able to contain mainly fruits. The invention is made such that a box is formed to be wider at a top and narrower at a bottom thereof so that other similar boxes can be piled within one box. Downward protrusions are formed at both bottom surfaces of the box, grooves are formed at bottom of the protrusion, and supporting frames having elongate holes formed therein are mounted on an edge frame of the box. Connecting bars of the handle are formed with hooking projection pieces and a reinforcing steel wire is inserted therein. The connecting bars of the handle are slidable within the elongate holes so that other boxes can be piled within one box in response to the moving position of the handle or other boxes can be piled in multiple layers on the handle, and the box can be stably lifted up or carried by gripping.
摘要:
An eyelet of high strength materials is disclosed herein having an upper end equipped with a tapered roller for movably supporting the eyelet on a cable and having a lower end equipped with a similar roller for supporting the end of the lower end of the eyelet from chaff by the cable. The eyelet is composed of stainless steel in the form of an oval-shaped rod in front elevation having a U-shaped upper end joined with a U-shaped lower end by outwardly diverging side members. A selected side member includes a spring-released latch normally biased closed to maintain the load-supporting cable captured within the eyelet between the roller. Lubricating fittings and disassembly construction for maintenance and repair is employed in mounting the rollers.
摘要:
A thermosetting polymide resin composition having an excellent molding processing property, heat resistance, low mold shrinkage, and good external appearance of its manufacture which comprises a modified bismaleimide resin prepared by reacting the Michael addition reaction of bismaleimides with aromatic primary diamines and aromatic secondary diamines, an inorganic filler, silicone oil, and a mixed catalyst composed of organic peroxides and imidazoles.
摘要:
A braking device for a video cassette recorder comprises braking members operatively connected to a supply reel table and a take-up reel table, the braking members pivot about its pivot pins disposed on the center thereof, a movable member including a first trapezoidal recess and a second trapezoidal recess disposed on the rear portion thereof, the first and second recesses being connected to the braking members, respectively, a connecting plate operatively disposed on the movable member, the connecting member including a first trapezoidal recess and a second trapezoidal recess which are disposed on the rear portion thereof, and corresponded to the first and second recesses of the movable member, a connecting portion extended from the front portion thereof and latching portions disposed on the front portion thereof, a ratchet having a triangular protrusion and a latching recess for corresponding to the latching portions of the connecting member, and a cam including a worm gear disposed on the circumferential surface thereof for operatively engaging with a worm, the cam being operatively engaged with a pin mounted to the connecting portion of the connecting plate, the worm secured to an axial rod which connects to a pair of inclined surfaces for abutting against the edge of one end of the ratchet whereby during operation of the reel tables of the video cassette recorder, the reel tables stop quickly by rotating the worm clockwise.