International Business Machines Corporation

Nec Environment Engineering, Ltd.

Mitsui Petrochemical Industries, Ltd.

Mitsui Petrochemical Ind. Ltd.

Yoshio Iida

Kenji Yokoyama

Youhei Suzuki

Michael A Aranda

Yasumasa Fujii

Toru Tomoshige

Timothy J Ebbers

Matthew Elsner

James Corona

Kakutaro Kauchi

Terence W Lindgren

Omar M Rahim

Masahiko Ooyama

Akishi Kamel

Taggart H Robertson

Edward Y Kwong

A thermal adhesive vibration damping sheet comprising a sheet substrate having crystalline polyolefin particles attached to a surface thereof, said polyolefin particles having a mean particle size of 1 to 20 .mu.m and exhibiting an endothermic curve having a high temperature side endothermic peak in the range of from 50.degree. to 230.degree. C. as measured by a differential scanning calorimeter. The sheet has improved blocking resistance, adhesion to sheet steel through heat fusion, and impact resistance at low temperatures.

Thermal adhesive vibration damping sheets

A processing system for identifying operator selection of a graphics object in a system using parallel pixel generation. Parallel pixel generation results in a fragment comprising a series of M pixels being generated at each processing cycle. The image fragment must be tested against an operator defined selection area to determine whether the object being generated falls within the operator selection area. Fragments are initially classified as totally within or totally outside of the area. If a fragment intersects the operator selection area, mask is applied for each boundary of the operator defined area. Selection is signalled based upon the logical combination of the masked image fragments. Operator selection or picking occurs without the overhead of maintaining a pick RAM for the X and Y dimensions.

Pick function implementation in a parallel processing system

Disclosed is a damping member comprising, as main components, a petroleum resin, asphalt and mica. By selecting and using mica as the filler and incorporating mica in an amount smaller than the amount of asphalt, the adhesion follow-up property to a substrate can be improved. This damping material can be attached simply and assuredly to a substrate having a curved surface, such as a tube or pipe, an air-conditioning duct or a part of a building or vehicle by heat-pressing or heat-fusion-bonding, and a product having an excellent damping effect is provided.

Composition having damping property, damping member, process for

A system for generating multiple pixels in a single machine cycle employs a plurality of parallel vector generators. Each of the parallel generators is initialized with an error term which is calcualted in accordance with Bresenham's algorithm. The signs of these error terms are then used to determine the region within the first octant of the coordinate system which contains the function for which the pixels are to be generated. The region data, in turn, determine two selectable values for an increment which is to be added to a running error term for each of the parallel generators as multiple pixels are simultaneously generated. The choice of the two possible values to be added to the error term is dependent upon the sign of the error term itself. The sign of the running error term for each vector generator is utilized to form a sequence of binary data which represents the incremental changes in the pixel positions as the pixels are being generated. In a preferred embodiment, the binary data is translated into pixel position data which is then stored in a memory device. Any generated pixel data which cannot be stored in the machine cycle in which it is generated is re-routed for storage in later cycles.

Multiple pixel generator

A color graphic display having a read/write control system for a buffer memory therein. The invention provides Line-on-Line and Underpaint by way of a method which invleves reading the contents of a frame buffer storage location for which new pixel data is being provided, comparing those contents with data representing a display background characteristic or color, and if the result of the comparison is positive, storing the new pixel data in the frame buffer storage location. If the result of the comparison is negative, a selected data value different from the new pixel data is stored in the frame buffer storage location.

Memory read/write control system for color graphic display

A technique for efficiently drawing wide lines in a graphics display system by method and apparatus which includes identifying a wide line to be drawn; drawing a first line of pixels of a wide line; determining if a next line in the wide line has a different first coordinate value from a first coordinate value of the first line; generating at least one additional pixel value for the next line if the first coordinate value of the next line is different from the first coordinate value of an immediately previously drawn line; repeating the steps until the wide line has been completely drawn.

Method and apparatus for drawing wide lines in a raster graphics display

Growing community of inventors

Yokohama, Japan

Yoshio Iida