摘要:
A graphic processing system has a processor for managing a display area and a character font area both included within an address space. From coded information indicative of a character transferred through a data bus of the system, the processor generates an address at which a character font pattern of the corresponding character has been stored and transfers that character font pattern to a predetermined position on the display area. The graphic processing system realizes high speed development of fonts.
摘要:
In a device and system which perform processing (displaying and outputting) of image data, the amount of data transferred between a memory holding the image data and a processor processing the image data is limited, thereby a great amount of data can be processed at high speed.
摘要:
In order to reduce degradation of the processing performance of the data processor due to use of a part of the main memory as a display frame buffer, when an access request to the memory is generated from the CPU, the memory controller holds it once, requests the display controller to stop the access to the memory which is in execution, when data to the access executed already is transferred from the memory, holds it, and transfers the access request from the CPU bus which is held by the memory. When the access from the CPU bus ends, the memory controller restarts the access stopped in the display controller and passes the held data to the display controller.
摘要:
A three-dimensional display apparatus which calculates fog coefficients reflecting Z-axis values so that a fogging process in pixel data processing is carried out rapidly using the fog coefficient corresponding to any Z-axis value in effect, whereby the effect of 3D graphics display is enhanced and a plurality of fog processing algorithms are handled.
摘要:
In a device and system which perform processing (displaying and outputting) of image data, the amount of data transferred between a memory holding the image data and a processor processing the image data is limited, thereby a great amount of data can be processed at high speed.
摘要:
A slave controller formed on a single semiconductor substrate executes a built in control algorithm in response to a command supplied from a master controller. Upon completion of command execution, the controls respond to predetermined information contained within the command by branching internal control operation in accordance with the new command. The controls then suspend a series of operations for executing the new command upon detection of the branch condition. Once the internal state has been changed over, the slave controller sends an instruction to the master controller.
摘要:
A graphic data processing system including an image memory for storing a character pattern as font data composed of binary information and for displaying graphic data of the character pattern, first and second color registers for holding color information corresponding respectively to the "0" and "1" signals of the font data stored in the image memory, data extending device for extending each bit of the font data, which are stored in the image memory, for one word into extended data having n bits where n bits represent one pixel, a multiplexer for multiplexing for each of the n bits color information, which is latched in the first and second color registers, wherein the multiplexing is performed independently at respectively corresponding bit units on the basis of the extended data from the data extending device and a device for masking and writing the color information of one word, multiplexed by the multiplexer, as graphic data at bit units in the image memory, whereby a plurality of pixels in one word are processed simultaneously in parallel.
摘要:
A polyetheric copolymer, a polyetheric block copolymer, and compositions of these copolymers containing:a benzonitrile recurring unit as represented by the following general formula (I): ##STR1## and a benzophenone recurring unit as represented by the following general formula (II): ##STR2## which copolymer has a molar ratio of the recurring unit (I) to a sum of the recurring units (I) and (II), i.e., (I)/[(I)+(II)], in the range from 0.15:1 to 0.40:1, as well as a melt viscosity (zero shear viscosity) at 400.degree. C. in the range from 500 to 100,000 poise.The polyetheric copolymer is crystalline and is a macromolecular compound having excellent heat resistance and mechanical strength.Disclosed herein are methods for the preparation of the polyetheric copolymer, the polyetheric block copolymer and the compositions containing the same.The polyetheric copolymers, the polyetheric block copolymers and their compositions are useful in various fields.
摘要:
Disclosed is a novel polymer of this invention which comprises having a recurring unit represented by the formula: ##STR1## and having a reduced viscosity (.eta.sp/c) of 0.2 dl/g or more at 60.degree. C. in a solution of a concentration of 0.2 g/dl in p-chlorophenol as a solvent, a method for preparing the same which comprises reacting a dihalogenobenzonitrile represented by the formula: ##STR2## wherein X represents a halogen atom, with an alkali metal salt of resorcin represented by the formula: ##STR3## wherein M represents an alkali metal, in the presence of a solvent; and then treating the reaction product obtained by water or alcohol, and molding materials and molded products employing the polycyanoaryl ether.
摘要:
There are disclosed a novel copolymer comprising having recurring unit represented by the formula: ##STR1## wherein Y represents a phenylene group or a naphthylene group, with a recurring number of k and a recurring unit represented by the formula: ##STR2## wherein Ar represents a divalent aryl group, with a recurring number of l, a value of k/(k+l) is 0.5 to 0.97 and having a reduced viscosity [.eta..sub.sp/c ] of 0.3 dl/g or higher as measured in p-chlorophenol solution at a concentration of 0.2 g/dl at 60.degree. C., and a process for producing the novel copolymer comprising the steps of:(a) reacting dihalogenobenzonitrile represented by the following formula: ##STR3## wherein X represents a halogen atom, an alkali metal salt of hydroquinone or dihydroxynaphthalene represented by the following formula:MO--Y--OM (IV) wherein Y represents a phenylene group or a naphthylene group and M represents an alkali metal, and an alkali metal salt of a divalent phenol represented by the formula:MO--AR--OM (V) wherein in Ar represents a divalent aryl group and M represents an alkali metal, in the presence of a solvent, and(B) treating the obtained reaction product with water or an alcohol.