Abstract: A method and apparatus for establishing an ultra-large character library and a method and apparatus for displaying a character are disclosed. The displaying method comprises: intercepting by a font engine middleware a font invoking message sent from a system font engine, the font invoking message comprising a character code and a font name corresponding to a character to be displayed by an application; acquiring outline data corresponding to the character from an ultra-large character library in a non-standard format based on the character code and font name; transmitting the outline data of the character to the system font engine to enable the system font engine to display the character according to the character outline data. With this invention, the capacity of the character library may be increased and characters in the non-standard-format ultra-large character library may be recognized conveniently, thus efficiency of character retrieval and display is improved.

Abstract: A method and an apparatus of building an intermediate character library are provided. The method comprises: acquiring an original character library which stores contour information of characters therein; dividing the characters in the original character library into character components, so as to acquire contour information of character components after division; and storing the contour information of the character components into the original character library so as to build an intermediate character library on the original character library. With the intermediate character library constructed by the method of the present invention, the font creation person can perform selecting and processing simultaneously on multiple single-contour components of a single character during creating of fonts, so that the operation process is simplified and the operation efficiency is improved.

Abstract: A method and system for controlling digital printing of a secret file is provided in this invention. The method comprises: obtaining a source file to be printed; importing the source file into a secret file library; generating a printing job for the source file and adding the printing job into a job list; writing printing control information of the source file into a standard file; after the printing is started, extracting page dot matrix data of the source file from the secret file library, and processing the page dot matrix data according to the printing control information; and transmitting the processed page dot matrix data to a numerical control device. Control management may be effectively realized throughout the printing process of the secret file, and the source file and the standard file cannot be copied without some professional skills in the printing process.

Abstract: A method for manufacturing a back drilling hole in a printed circuit board (PCB) and PCB are provided. The method for manufacturing the back drilling hole comprises: forming a through hole in the PCB (1); forming a metal layer (12) with prescribed thickness on an inner wall of the through hole; filling resin in the through hole which has been formed with the metal layer (12); performing back drilling machining on the through hole which has been filled with the resin; removing metal scraps remained in the through hole. The manufacturing method protects the hole wall copper by filling the hole with the resin, so that acid corrosion process only removes the remained metal scraps after back drilling of the small hole, does not affect on the hole copper of the resin protecting portion.

Abstract: Provided are a raster processing method and apparatus of a transparent Form. The method comprising: determining a reusable transparent Form in a page description file; performing syntax interpretation on the transparent Form to obtain a reuse type and position information of the transparent Form; generating a color block lattice, an Alpha block lattice, a Shape block lattice and their corresponding block attribute tables and block memory tables for the transparent Form, according to the reuse type and the position information, and establishing association relationships between different transparent Forms in the page description file; computing on the generated data information to obtain and buffer assembling information of the transparent Form, according to the reuse type of the transparent Form; determining an assembling manner of the transparent Form according to the reuse type of the transparent Form and assembling the transparent Form into the page to be outputted.

Abstract: A method and device for checking nozzles in an inkjet printer is disclosed. The checking method comprises: obtaining an electronically scanned image which is a printed paper image printed by the inkjet printer according to a checking image, correspondence relationships between pixel point positions and numbers of nozzles in the inkjet printer being preset in the checking image (step 11); analyzing the scanned image to obtain pixel point positions free of ink in the scanned image (step 12); and according to the pixel point positions free of ink, obtaining and outputting the corresponding nozzle numbers (step 13). This invention may realize automatic checking of blocked nozzles, improve the convenience of checking, and reduce the error rate of checking.

Abstract: An ink jetting digital printing apparatus supporting double-side printing is provided. The ink jetting digital printing apparatus comprises: a first sprayer module and a corresponding first group of color plane control servers, a second sprayer module and a corresponding second group of color plane control servers, a rasterization image processing server, and a system control server. The first and second sprayer modules comprise a group of sprayers of the same two or more colors; the first group comprises color plane control servers in one-to-one correspondence with sprayers in the first sprayer module; the second group comprises color plane control servers in one-to-one correspondence with sprayers in the second sprayer module; the first group color plane control servers parallel with the second group color plane control servers.

Abstract: This invention relates to printing, and discloses a method and apparatus for variable data printing. The method comprises: obtaining a current page of a file to be printed; performing a rasterization process on the current page to obtain a current page dot matrix; determining a reference page for the current page and obtaining a reference page dot matrix corresponding to the reference page; dividing the reference page dot matrix and the current page dot matrix into dot matrix blocks having a predetermined granularity; identifying variable data blocks in the current page dot matrix based on the dot matrix blocks; dynamically adjusting the size of the variable data blocks; extracting a variable data dot matrix in the current page dot matrix splitting the current page dot matrix up into the reference page dot matrix and the variable data dot matrix and then storing and outputting them.

Abstract: An apparatus and method for document format conversion. The apparatus includes a document parsing unit for parsing a fixed layout document to acquire path primitives of the document; a path grouping unit for dividing the path primitives into groups to generate path groups; a font file generating unit for acquiring path groups that are used to represent characters and generating font files corresponding to the path groups, wherein if there are two or more path groups representing the same character, only one font file is generated and associated with the multiple path groups representing the same character; a document generating unit for generating a converted document using all font files that have been generated. With the above, the problem of data redundancy in fixed layout documents is solved; further, the incorrect rending in reflowing processes may be solved to achieve better display effects.

Abstract: Provided are a raster processing method and apparatus of a transparent Form. The method comprising: determining a reusable transparent Form in a page description file; performing syntax interpretation on the transparent Form to obtain a reuse type and position information of the transparent Form; generating a color block lattice, an Alpha block lattice, a Shape block lattice and their corresponding block attribute tables and block memory tables for the transparent Form, according to the reuse type and the position information, and establishing association relationships between different transparent Forms in the page description file; computing on the generated data information to obtain and buffer assembling information of the transparent Form, according to the reuse type of the transparent Form; determining an assembling manner of the transparent Form according to the reuse type of the transparent Form and assembling the transparent Form into the page to be outputted.

Abstract: The invention discloses a method for displaying a text block, a method for processing a text block, a client and a server, where the method for displaying a text block includes the steps of: a client collecting font parameters and layout parameters of a text block; the client transmitting the font parameters and the layout parameters of the text block to a server; and the client receiving vector description information of the text block, generated according to the font parameters and the layout parameters of the text block, sent from the server and executing drawing commands to draw the text block and display the text block on a screen. With embodiments of the invention, the effect of a personalized presswork printed at the server can be kept consistent with the effect of displaying the text block on the screen.

Abstract: A method for generating print parameters includes: obtaining a printed paper of a test sample sheet obtained by a printing device after performing double-sided printing on the test sample sheet using preset front print parameters and preset back print parameters; detecting a front effect index of a front print effect and a back effect index of a back print effect for the printed paper of the test sample sheet by a print parameter generating device; comparing the front effect index and the back effect index with a standard effect index to obtain a comparison result, or comparing the front effect index with the back effect index to obtain a comparison result; determining from the comparison result and store in the printing device front print parameters and back print parameters used for double-sided printing on a paper to be printed with the same material and attributes as the test sample sheet.

Abstract: Document format processing apparatus and document format processing method are provided. The apparatus comprising: an obtaining unit for obtaining element information of a document in a first format; a parsing unit, for parsing the element information to get source data information; a conversion unit for converting the source data information to target data information of the document in a second format; a document processing unit for processing the target data information. Thus, when a document in an unsupported format is processed, what is only needed is to convert the format of source data contained in the document to a target data format, rather than thoroughly developing of the existing document processing editor, and thus complexity may be reduced; meanwhile, because it is not necessary to convert a document format using other format conversion tool, implementation cost and time consumed may be reduced.

Abstract: A method for generating print parameters includes: obtaining a printed paper of a test sample sheet obtained by a printing device after performing double-sided printing on the test sample sheet using preset front print parameters and preset back print parameters; detecting a front effect index of a front print effect and a back effect index of a back print effect for the printed paper of the test sample sheet by a print parameter generating device; comparing the front effect index and the back effect index with a standard effect index to obtain a comparison result, or comparing the front effect index with the back effect index to obtain a comparison result; determining from the comparison result and store in the printing device front print parameters and back print parameters used for double-sided printing on a paper to be printed with the same material and attributes as the test sample sheet.

Abstract: A printed circuit board and a preparation method thereof. The preparation method includes: making a first through hole in a core board including a metal layer; filling copper into the first through hole; forming a circuit pattern of the metal layer of the core board through an alkaline etching process; successively laminating a dielectric layer and a first copper foil on one side of the core board; making a second through hole opposite to and communicated with the first through hole, in the first copper foil; filling copper into the second through hole; and forming a circuit pattern of the first copper foil. The method for preparing the printed circuit board provided in the present invention can effectively reduce the preparation cost of the printed circuit board, greatly increase the yield of a product and further improve the universality of application.

Abstract: The invention discloses a method for displaying a text block, a method for processing a text block, a client and a server, where the method for displaying a text block includes the steps of: a client collecting font parameters and layout parameters of a text block; the client transmitting the font parameters and the layout parameters of the text block to a server; and the client receiving vector description information of the text block, generated according to the font parameters and the layout parameters of the text block, sent from the server and executing drawing commands to draw the text block and display the text block on a screen. With embodiments of the invention, the effect of a personalized presswork printed at the server can be kept consistent with the effect of displaying the text block on the screen.

Abstract: A character display technique relating to computer information processing to improve the display of characters. Whether a thickening process on a glyph outline corresponding to a character to be displayed is needed is determined by calculating a mean grayscale value of pixels of a grayscale bitmap of the glyph outline. if thickening is to be performed, the thickening amount is determined on the basis of the mean grayscale value of pixels, and the thickened glyph outline is output for display, thereby minimizing problems of fading of the displayed color, fuzzy strokes and the like due to strokes that are too narrow, and thus improving the character display effect.

Abstract: A technique for identifying font in connection with text data processing. An original font corresponding to an embedded font used in an electronic document is identified. At least one glyph is selected from a glyph collection of the embedded font. The font corresponding to each selected glyph is identified, and the original font corresponding to the embedded font is identified according to the font that corresponds to each selected glyph.

Abstract: A digital right management method, including: generating, by a first user equipment having access right to shared digital contents, a common public key based on one or more public keys of one or more second user equipments intended to share the digital contents, respectively; encrypting, by the first user equipment, a key of the digital contents with the common public key to generate a ciphertext of the key of the digital contents; generating, by the first user equipment, from the ciphertext a new authorization certificate corresponding to the digital contents; and transmitting, by the first user equipment, the new authorization certificate and the digital contents to the second user equipments to instruct the second user equipments to share the digital contents in accordance with the new authorization certificate.

Abstract: A digital right management method, including: encrypting, by a first user equipment which has access right to shared digital contents, a key of the digital contents with at least an equipment key of a second user equipment intended to share the digital contents to generate a ciphertext of the key of the digital contents; generating, by the first user equipment, from the ciphertext a new authorization certificate corresponding to the digital contents; and transmitting, by the first user equipment, the new authorization certificate and the digital contents to the second user equipment to instruct the second user equipment to share the digital contents in accordance with the new authorization certificate.