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2542 results about "Perpendicular direction" patented technology

Perpendicular is used to describe lines, angles and direction. In geometry a perpendicular angle is 90 degrees, a perfect L. On a compass, East and North are perpendicular to each other.

Rectangular contact lithography for circuit performance improvement and manufacture cost reduction

An optical lithography method is disclosed that uses double exposure of a reusable template mask and a trim mask to fabricate regularly-placed rectangular contacts in standard cells of application-specific integrated circuits (ASICs). A first exposure of the reusable template mask with periodic patterns forms periodic dark lines on a wafer and a second exposure of an application-specific trim mask remove the unwanted part of the dark lines and the small cuts of the dark lines left form the rectangular regularly-placed contacts. All contacts are placed regularly in one direction while unrestrictedly in the perpendicular direction. The regular placement of patterns on the template mask enable more effective use of resolution enhancement technologies, which in turn allows a decrease in manufacturing cost and the minimum contact size and pitch. Since there is no extra application-specific mask needed comparing with the conventional lithography method for unrestrictedly-placed contacts, the extra cost is kept to the lowest. The method of the invention can be used in the fabrication of standard cells in application-specific integrated circuits (ASICs) to improve circuit performance and decrease circuit area and manufacturing cost.
Owner:THE UNIVERSITY OF HONG KONG

Imaging millimeter wave radar system

An imaging millimeter wave radar system. The system includes a millimeter wave transmitter transmitting a frequency scanned millimeter beam that is narrow in the scanned direction and wide in a direction perpendicular to the scanned direction. The system includes a receive antenna and a Rotman type lens for forming a one-dimensional image in the perpendicular direction of targets in the antennas field of view based on millimeter wave radiation reflected from the targets. A computer creates a two dimensional image based on the scanning direction of the transmit beam of the transmit antenna and the one dimensional image from the receive antenna. Distance to the target is determined based on difference in frequency of the transmit signal and the receive signal. Thus, a three dimensional view of the systems field of view is determined by the system. This view can be displayed on a monitor using color to represent target distance. In a preferred embodiment the scanned direction is the vertical direction and the receive antenna forms a horizontal image from signals reflected from targets in the field of view. In this preferred embodiment the transmit antenna is a variable frequency millimeter wave single channel wave guide antenna operating in the 78 GHz to 81 Ghz spectral range to produce a scanning range of 10 degrees and a scanning rate of 60 Hz. The receive antenna is a multi-channel (176 channels) strip-line antenna also operating in the 78 GHz to 81 GHz spectral range, which with the Rotman lens, provides 192 horizontal pixel resolution.
Owner:TREX ENTERPRISES CORP

Electrophotographic image forming apparatus

An electrophotographic image forming apparatus with which a process cartridge having an electrophotographic photosensitive member is usable, the apparatus includes a transfer member contactable to the photosensitive member to transfer a toner image from the photosensitive member thereonto; a tray for carrying the cartridge, the tray being movable between a contact position in which the photosensitive member is contacted to the transfer member in a state that tray carries the cartridge and a spaced position in which the photosensitive member is spaced from the transfer member in the state that tray carries the cartridge; a supporting member for supporting the tray for movement in a tangent line direction which is parallel with a tangent line between the photosensitive member and the transfer member as seen in an axial direction of the photosensitive member between a first position for positioning the tray at the contact position and a second position which is retracted from the first position away from the transfer member in a perpendicular direction perpendicular to the axial direction and to the tangent line and in the tangent line direction to position the tray at the spaced position; a portion to be engaged; an engaging portion provided in the tray and engageable with the portion to be engaged to regulate movement of the tray in the tangent line direction when the tray is at the contact position, wherein the engaging portion is disengaged from the portion to be engaged after the electrophotographic photosensitive member is spaced from the transfer member by movement of the tray in the perpendicular direction in a state of engagement with the portion to be engaged, when the supporting member moves from the first position toward the second position.
Owner:CANON KK

Extraction method for characters in form document image

The invention relates to the field of image processing and computer vision technologies, in particular to an extraction method for characters in a form document image. The extraction method includes a first step of extracting line segments in the image through edge detection and Hough transformation algorithm, a second step of estimating an inclined angle of the whole image according to direction distribution of the line segments and carrying out inclination correction on the image, a third step of connecting the line segments in the horizontal direction and the perpendicular direction, and locating table cells of a form, a fourth step of carrying out image binaryzation and segmenting a full line of characters in the table cells through a maximum between-cluster variance method, and extracting the characters in the table cells through a window sliding method, and a fifth step of carrying out restoration on deletion of strokes of the characters according to statistics features of frame lines of the table cells. The extraction method is good in flexibility and capable of effectively solving the problems of adhesion between the characters and overlap between the characters and form lines, and greatly reduces the influence of the adhesion and overlap on optical character recognition (OCR).
Owner:SICHUAN UNIV
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