摘要:
An extrusion molding method for improving the fluidity of a molding material in the die and significantly improving the productivity of the molded article of uniform thickness, and an extrusion molding apparatus adapted for smoothly carrying out the method and having an unsophisticated constructional arrangement, are disclosed.Molding is carried out while the die to which an extrusion orifice gap adjustment device is annexed is kept in resonant vibrations. The extrusion orifice gap adjustment device is annexed to a portion of the die constituting an extrusion orifice section, and molding is carried out while only the portion of the die is kept in resonant vibrations. The extrusion orifice gap adjustment device is annexed at a node of the resonant vibrations. The extrusion orifice of the die is provided at a position in register with a loop of the resonant vibrations, that is, at a position of the maximum effect of the vibrations, so that the frictional resistance between the molding material and the die surface in the vicinity of the extrusion orifice is reduced.
摘要:
An apparatus having a charge coupled device which is used as a solid state type image pickup apparatus and prior to inversion of the level of drive pulses supplied to two electrode groups from among a plurality of electrode groups of a CCD, each electrode group is disconnected once electrically from each drive pulse generating circuit, in which period two electrode groups whose level of drive pulse are inverted are electrically short-circuited, whereby all the charges in capacitors formed between the electrodes and a substrate are not discharged but about half of the charges can be reused for charging another capacitor which is formed between the electrodes and the substrate and is to be charged next, thus enabling a saving of power consumption, a reduction of heat dissipation losses, and enabling the miniaturization of the image pickup apparatus using a charge coupled device.
摘要:
A radio-frequency signal receiver and its manufacturing method are disclosed. A tuner receives a radio-frequency signal, and a demodulator receives an output signal from the tuner. An error corrector receives an output from the demodulator. A determiner determines whether or not an error rate supplied from the error corrector is not less than a predetermined rate. A controller receives an output from the determiner, and based on the determination, the controller controls a plurality of sections forming the radio-frequency signal receiver. The controller controls selectively one of the plurality of sections, thereby lowering the error rate. A manufacturing method of this receiver makes a memory, coupled to the controller, store a shift-amount of frequency corresponding to an interference signal in a pass-band of a narrow-band filter.
摘要:
An image sensing apparatus which performs fast data processing without suffering an increased manufacturing cost. The image sensing apparatus senses an object and produces an image data signal screen-by-screen. In one embodiment, an image sensing apparatus for producing an image data signal includes an image sensing unit, a signal processor, a main buffer memory, and an image data processing circuit. A first group of processed pixels having the size of a first matrix is stored in the main buffer memory. The image data processing circuit receives a second group of pixels having the size of a second matrix from the first group stored in the main buffer memory. Included in image data processing circuit is a sub buffer which is initially filled with the second group of pixels. As pixels are processed and removed from the sub buffer, a third group of pixels is provided from the main buffer which is equal in size to a horizontal row or a vertical column from the second group.
摘要:
The present invention relates to a styrene-based resin composition comprising a styrene-based polymer having mainly a syndiotactic configuration and a specified antioxidant, a fibrous molding or extrusion produced by spinning a syndiotactic styrene resin composition and a molding produced by shaping and/or spinning, and stretching said resin.
摘要:
An injection molding method in which a molding material is injected into a cavity formed in a mold to be molded. The mold is driven to resonate so that resonance occurs in the mold at n wavelengths, where n=m/2 and m is a positive integer, and an injection molding apparatus provided with a fixed mold and a movable mold; the movable mold having a cavity in one side thereof, and an ultrasonic vibration feed device being connected to the other side thereof.