32results about How to "Reduce misregistration" patented technology

A method and apparatus for imaging an overlying conductive pattern over an underlying conductive pattern on a substrate, by determining deviations between the actual locations and the nominal locations of predetermined reference targets in the underlying conductive pattern on the substrate; and utilizing the determined deviations for modifying the scanning control data used for imaging the image data of the overlying conductive pattern in order to reduce misregistration thereof with respect to the underlying conductive pattern. Preferably, the reference targets are predetermined connection sites in the underlying conductive pattern to be precisely located with respect to connection sites in the overlying conductive pattern. The reference features may be assigned different weights according to their registration importance, and the deviations may be determined according to a threshold which varies with the weight assigned to the respective reference feature.

In order to provide technique which reduce the positional shift of recording in the conveyance direction of a printing medium, a printing apparatus comprises: a conveyance unit for conveying the printing medium by rotating a roller; a detection unit for detecting a conveyance amount of a printing medium conveyed by rotating the roller in less than one rotation; an acquisition unit for acquiring a conveyance amount of the printing medium corresponding to a predetermined rotation amount of the roller by detecting the conveyance amount a plurality of times; and a setting unit for setting a rotation amount of the roller when forming an image on the printing medium based on a conveyance amount of a printing medium corresponding to the acquired predetermined rotation amount of the roller.

A pattern image of either a registration correction pattern including a plurality of position detecting marks or a misregistration correction performing determination pattern having a plurality of position detecting marks, the number of which marks is smaller than that of the registration correction pattern image is formed. A misregistration amount is calculated based on an image formed position detected with the use of the pattern image. It is determined whether the registration correction is to be carried out, based on the misregistration amount with the use of an image formed position of the correction performing determination pattern. When it is determined to carry out the misregistration correction, the misregistration correction is carried out based on the misregistration amount with the use of image formed positions of the misregistration correction pattern.

The present invention aims to provide image processing device and method capable of generating a difference image at high speed without occurring misregistration. To achieve this, in the image processing device and method, plural regions of interest are set respectively to input first and second images, a shift vector indicating a misregistration amount between the first and second images is calculated with respect to each of the regions of interest, a filter process is executed to the shift vector, the filter-processed shift vector is interpolated, the first and second images are registered based on the interpolated shift vector, and a subtraction operation is executed between corresponding pixels on the respective registered images to acquire the difference image.

An image forming apparatus including: a first and a second photoconductor groups constituted of one or more photoconductors respectively; a first and a second drive control sections for controlling the drive of the first and the second photoconductor groups respectively to rotate the photoconductors thereof, wherein the rotational phases of the first photoconductor group and the second photoconductor group are adjusted to be matched therebetween; and the first and the second drive control sections control so that predetermined profile of a target speed is applied to the first and second photoconductor groups wherein, in the target-speed profile, the first photoconductor group starts rotating after a elapse of a predetermined startup delay time from the second photoconductor group starts rotating, and both groups end at a same final speed predetermined for full-color image formation, wherein the startup delay time is predetermined based on measurements of times needed for each of the first and the second photoconductor groups to reach a predetermined speed from starting the rotation with the target-speed profile being applied thereto.

A projection display apparatus includes: a light source; a spatial light modulation device modulating, on the basis of a video signal, each of primary color lights for color display emitted from the light source; projecting means for projecting, onto a screen, each of the primary color lights modulated by the spatial light modulation device; and correcting means for correcting, based on a given correction value, the video signal for each of the primary color lights so as to reduce misregistration between the primary color lights projected on the screen, and supplying the corrected video signal to the spatial light modulation device. The correcting means is configured to correct the video signal according to a single correction value such that a group of correction target points selected in a projected image on the screen are collectively processed as a single correction unit.

The present invention provides a projection display apparatus realizing easy recognition of the effect of registration adjustment. The projection display apparatus includes: a light source; a spatial light modulation device modulating, on the basis of a video signal, each of primary color lights for color display emitted from the light source; projecting means for projecting, onto a screen, each of the primary color lights modulated by the spatial light modulation device; and correcting means for correcting, based on a given correction value, the video signal for each of the primary color lights so as to reduce misregistration between the primary color lights projected on the screen, and supplying the corrected video signal to the spatial light modulation device. Validation / invalidation of correction on the video signal by the correcting means is switched in accordance with an operation from the user.

A magnetic resonance imaging system and method are provided for improved phase-sensitive magnetic resonance imaging of tissues affected by cardiovascular pulsatile motion. A magnetically-prepared image dataset and corresponding reference image dataset (for phase sensitivity) are obtained within the duration of a single cardiac cycle. The paired datasets can be single-shot or segmented datasets and a navigator sequence can optionally be provided with each paired dataset. The system and method take advantage of the shape symmetry of the cardiac cycle to acquire the paired dataset in a shorter time interval, thereby reducing misregistration artifacts. The magnetic preparation can include inversion recovery pulses, FIDDLE sequences, other magnetic preparation sequences, or combinations thereof. The reference dataset can be acquired at a lower resolution than the corresponding magnetically-prepared dataset without compromising image quality.

In order to provide technique which reduce the positional shift of recording in the conveyance direction of a printing medium, a printing apparatus comprises: a conveyance unit for conveying the printing medium by rotating a roller; a detection unit for detecting a conveyance amount of a printing medium conveyed by rotating the roller in less than one rotation; an acquisition unit for acquiring a conveyance amount of the printing medium corresponding to a predetermined rotation amount of the roller by detecting the conveyance amount a plurality of times; and a setting unit for setting a rotation amount of the roller when forming an image on the printing medium based on a conveyance amount of a printing medium corresponding to the acquired predetermined rotation amount of the roller.

A pattern image of either a registration correction pattern including a plurality of position detecting marks or a misregistration correction performing determination pattern having a plurality of position detecting marks, the number of which marks is smaller than that of the registration correction pattern image is formed. A misregistration amount is calculated based on an image formed position detected with the use of the pattern image. It is determined whether the registration correction is to be carried out, based on the misregistration amount with the use of an image formed position of the correction performing determination pattern. When it is determined to carry out the misregistration correction, the misregistration correction is carried out based on the misregistration amount with the use of image formed positions of the misregistration correction pattern.

The present invention relates to a method of an axle correction of a processing machine and a processing machine, the processing machine includes, for conveying and processing a continuous material (101), at least two driven conveyance axles (110, 115), at least one non-driven or driven processing axle (111, 112, 113, 114), and at least one further non-driven axle (102, 121, 122, 123, 124), wherein an elasticity module of a material (101) is determined, while a rotational speed of the clamping point which limits a web-tension section is being changed, a precontrol of this clamping point which limits the web-tension section, and / or a processing axle (111-114) which is present in this web-tension section is carried out with consideration of the elasticity module of the material which comprises the continuous material and with consideration for a rotational inertia of at least one non-driven axle (102, 121-124) which is present in this web-tension section.

The present invention provides an upper guide needle device and a battery machine including the upper guide needle device, including a base, a first transfer unit and a second transfer unit, and the first transfer unit and the second transfer unit are both arranged on the base; The first transfer unit includes a turntable that can rotate around its own axis. The turntable can absorb the guide needle and transfer the guide needle to the second transfer unit. The second transfer unit includes a first transmission mechanism and a second transmission mechanism, and is connected to the second transmission unit. The mechanical clamp of the transmission mechanism, the first transmission mechanism can drive the mechanical clamp to open or close to clamp or loosen the guide pin, and the second transmission mechanism can drive the mechanical clamp to rotate and translate to send the guide pin to the next process. In this way, compared with the traditional structure, the upper guide pin device has higher flexibility, and the guide pin can be sent to the next process after two rotations and one translation, thereby effectively improving the positioning accuracy of the guide pin and reducing the cost of the guide pin. The possibility of misalignment between the needle and the foil, thereby reducing the defective rate of the product.