CN100362463C - Method for compressinga digital representation containing a page-describing code, which is sent from a computer to a printer - Google Patents
Method for compressinga digital representation containing a page-describing code, which is sent from a computer to a printer Download PDFInfo
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- CN100362463C CN100362463C CNB2004800165507A CN200480016550A CN100362463C CN 100362463 C CN100362463 C CN 100362463C CN B2004800165507 A CNB2004800165507 A CN B2004800165507A CN 200480016550 A CN200480016550 A CN 200480016550A CN 100362463 C CN100362463 C CN 100362463C
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Abstract
A computer-implemented method is designed for printing on regular digital printers of a coding pattern consisting of regularly spaced code symbols. In the method, a page-describing code (e.g. in PostScript programming language) is generated for the printer. The generation of the page-describing code is based a character definition set which assigns a set of characters to represent a set of mutually unique groups of the code symbols. By mapping the set of mutually unique groups against the coding pattern, the location of corresponding groups within the coding pattern can be identified. Each of the corresponding groups is then represented by its assigned character in the page-describing code. The resulting page-describing code is small in size and has a reduced set of printer instructions that can be processed efficiently by the receiving printer.
Description
The cross reference of related application
The application requires to enjoy priority according to the U.S. Provisional Patent Application 60/473,201 of the Swedish patent application 0301548-4 of submission on May 26th, 2003 and submission on May 27th, 2003, and wherein said patented claim all is hereby incorporated by.
Technical field
The present invention relates generally to printing coding pattern on the digital printer as required.
Background technology
At present, using coding pattern is known going up certain information of embedding such as passive base such as paper, clipboard (base).Then, scanner, facsimile recorder, camera or the digital pen of appropriate programming can read, rebuild and use those logically to embed the information of substrate.For example, suprabasil graphical information can be replenished with the embedded information of function at the bottom of the expansion base.This embedded information can comprise the file data, order, supplemental text or the image that are used for complete or partial reconstruction graphical information, hyperlink, absolute position or the like.
In general, coding pattern is arranged in suprabasil machine-readable code symbols regularly around certain and constructs.In US 5,221,833; US 5,477, and 012; WO 00/73983; WO 01/26032; Provided the example of this coding pattern among WO 01/71643 and the US 6,330,976.
Under many circumstances, can produce substrate on a large scale, accurately in the figure industry with coding pattern.Yet, sometimes also can need to create on a small scale substrate with coding pattern.So this can finish by the personal computer that links to each other with for example ink-jet or laser printer.
Above-mentioned processing can realize that wherein Bi Yao coding pattern is created as image file with graphical format with a kind of like this mode, and for example, described graphical format is a bitmap format.This image file is transformed into the page-describing code such as PostScript (trade mark), and wherein said page-describing code is common and printer is irrelevant, and after this, this document will be sent to printer unit.According to page-describing code, printer unit is created corresponding instruction and is come printer hardware is controlled.For laser printer, this hardware can comprise the laser diode with relevant optical device.And in ink-jet printer, this hardware can comprise ink sprayer.Then, printing will be carried out in the substrate of paper and so on.
If coding pattern has very high information density, and described information density can realize that image file and page-describing code might become very big so by the high information quantity in each coded identification and/or by dense arrangement coded identification in substrate.Therefore, delivery time and the printer processes time that is used for described sign indicating number might become long.
WO 02/082366 has proposed a kind of technology that is used to dwindle the page-describing code size, and this technology is used in particular for coming coding pattern that the continuous sequence of absolute position is encoded with two-dimensional approach.Here, printer unit and pattern generation module integrate, and this module realizes with software and/or hardware, can produce coding pattern according to the information that is used to describe the border, absolute position of soon encoding in substrate thus.Therefore, page-describing code can be replenished with this boundary information, so that the presentation code pattern.This method then can significantly shorten delivery time and printer processes time.
Yet it may be very difficult or or even impossible using essential pattern generation module to upgrade and have printer now.Because the users of a lot of expections must buy new printer, therefore do like this and may cause the generating technique obstacle, on passive base, introduce and adopt coding pattern thereby hinder.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of printing technique that overcomes the problems referred to above.
These and other purposes can be known understanding from following description, and these and other targets fully or partly realize by means of following aspect of the present invention now.Preferred embodiment then is defined in an embodiment of the present invention.
According to first aspect, the present invention relates to a kind of method of the printing coding pattern of carrying out by computing machine, wherein said coding pattern comprises rule coded identification at interval, said method comprising the steps of: the numeral of retrieving described coding pattern; The searching character definitions set, wherein this character definition collection specifies one group of character to represent the set of mutual unique group of described coded identification; Contrast described numeral and shine upon the described set of unique group mutually, so that in described coding pattern, identify the position of respective sets; Produce page-describing code, in described page-describing code, each group in the described respective sets is by its appointed character representation; And page-describing code is sent to printer, wherein this printer is suitable for converting page-describing code to printable image.
In an embodiment of first aspect, described transfer step comprises described character definition collection is sent to described printer.
In another embodiment of first aspect, described generation step comprises described character definition assembled and is incorporated in the page-describing code.
In another embodiment of first aspect, the step of described searching character definitions set comprises the retrieval font defi-nition.
In another embodiment of first aspect, described font defi-nition definition cutline font.
In another embodiment of first aspect, described font defi-nition definition bit-mapped font.
In another embodiment of first aspect, described character definition collection is specified one group of second character, so that the independent coded identification that each in the presentation code pattern is unique, and the step of wherein said generation page-describing code comprises: if find that the symbol quantity in the dimension of the coding pattern that will print is relative relatively prime with number of coded symbols in described group the respective dimensions, then represent at least one coded identification by its corresponding second character.
In another embodiment of first aspect, described generation step comprises the page-describing code of generation as text.Wherein said text is Postscript file or printer control language file preferably.
In another embodiment of first aspect, each coded identification all is to represent with the corresponding encoded value in the described numeral.
In another embodiment of first aspect, a plurality of described encoded radios are encoded to a position jointly.
In another embodiment of first aspect, each encoded radio all can work to the coding of a plurality of positions.
In another embodiment of first aspect, each encoded radio is represented predetermined, the differentiable Graphic State of described coded identification.
In another embodiment of first aspect, each coded identification comprises coded markings and relevant spatial reference point, and wherein said state is to represent by the characteristic of selecting from the group that comprises following characteristic: described coded markings is with respect to the displacement size of its relevant spatial reference point; Described coded markings is with respect to the sense of displacement of its relevant spatial reference point; The shape of described coded markings; The size of described coded markings; The color of described coded markings; And any combination of above-mentioned characteristic.
In another embodiment of first aspect, described spatial reference point quilt in described coding pattern is spaced apart regularly.
According to second aspect, the present invention relates to a kind of equipment that is used to print coding pattern, wherein said coding pattern comprises rule coded identification at interval, and this equipment comprises: the device that is used to retrieve the numeral of described coding pattern; The device that is used for the searching character definitions set, wherein this character definition collection specifies one group of character to represent the set of mutual unique group of described coded identification; Be used to contrast described numeral and shine upon the described set of unique group mutually, so that in described coding pattern, identify the device of the position of respective sets; Be used to produce the device of page-describing code, wherein in described page-describing code, each group in the described respective sets is by its appointed character representation; And be used for page-describing code is exported so that be sent to the device of printer, wherein this printer is suitable for converting page-describing code to printable image.
In an embodiment of second aspect, the described device that is used to export is configured to export described character definition collection so that be sent to described printer.
In another embodiment of second aspect, the described device that is used for producing is configured to described character definition assembly is incorporated into page-describing code.
In another embodiment of second aspect, the described device that is used for the searching character definitions set is configured to retrieve font defi-nition.
In another embodiment of second aspect, described font defi-nition definition cutline font.
In another embodiment of second aspect, described font defi-nition definition bit-mapped font.
In another embodiment of second aspect, described character definition collection is specified one group of second character, so that the independent coded identification that each in the presentation code pattern is unique, and the wherein said device that is used for producing is configured to: if find that the symbol quantity of a dimension of the coding pattern that will print is relative relatively prime with number of coded symbols in described group the respective dimensions, then represent at least one coded identification by its corresponding second character.
In another embodiment of second aspect, the described device that is used to produce is configured to produce the page-describing code as text.Wherein said text is Postscript file or printer control language file preferably.
In another embodiment of second aspect, each coded identification all is to represent with the corresponding encoded value in the described numeral.
In another embodiment of second aspect, a plurality of described encoded radios are encoded to a position jointly.
In another embodiment of second aspect, each encoded radio all can work to the coding of a plurality of positions.
In another embodiment of second aspect, each encoded radio is represented predetermined, the differentiable Graphic State of described coded identification.
In another embodiment of second aspect, each coded identification comprises coded markings and relevant spatial reference point, and wherein said state is to represent by the characteristic of selecting from the group that comprises following characteristic: described coded markings is with respect to the displacement size of its relevant spatial reference point; Described coded markings is with respect to the sense of displacement of its relevant spatial reference point; The shape of described coded markings; The size of described coded markings; The color of described coded markings; And any combination of above-mentioned characteristic.
In another embodiment of second aspect, described spatial reference point quilt in described coding pattern is spaced apart regularly.
The feasible quantity that has reduced resulting page-describing code significantly in described first and second aspects.Not by each coded identification of own coding instruction expression, but mutual unique group of coming the presentation code symbol by the character set of page-describing code weight.Described quantity minimizing can make and correspondingly reduce the delivery time, and not need by the mode producing module printer that receives to be upgraded.
According to the third aspect, the present invention relates to a kind of method of the printing coding pattern of carrying out by computing machine, wherein said coding pattern comprises rule coded identification at interval, said method comprising the steps of: the numeral of retrieving described coding pattern; The retrieval font defi-nition, wherein unique font characters of this font defi-nition appointment is represented each the unique encoding symbol in the described coding pattern; The described unique encoding symbol of sign in described numeral; Produce page-describing code, in described page-describing code, each in Biao Shi the coded identification is represented by its appointed font characters thus; And page-describing code is sent to printer, wherein this printer is suitable for converting page-describing code to printable image.
According to fourth aspect, the present invention relates to a kind of equipment that is used to print coding pattern, wherein said coding pattern comprises rule coded identification at interval, and described equipment comprises: the device that is used to retrieve the numeral of described coding pattern; Be used to retrieve the device of font defi-nition, wherein unique font characters of this font defi-nition appointment is represented each the unique encoding symbol in the described coding pattern; Be used for device at the described unique encoding symbol of described numeral sign; Be used to produce the device of page-describing code, wherein in described page-describing code, each in Biao Shi the coded identification is represented by its appointed font characters thus; And be used for page-describing code is exported so that be sent to the device of printer, wherein this printer is suitable for converting page-describing code to printable image.
Third and fourth aspect makes it possible to reduce the processing time that is used for printing at the printer that receives coded identification.Not to represent each coded identification, but represent described coded identification by font characters by instructing by the own coding in the page-describing code of described printer explanation.Printer is optimized for the processing font characters usually, and even can have the dedicated cache storer that is used for font defi-nition.Therefore, can reduce the processing time, and not need printer to be upgraded by the mode producing module.
Description of drawings
Come referring now to the mode of accompanying drawing by example that present invention is described, wherein said accompanying drawing has schematically been described currently preferred embodiments.
Fig. 1 is the figure that shows the first prior art coding pattern;
Fig. 2 A is the synoptic diagram of carrying out according to the system of Method of printing of the present invention;
Fig. 2 B is the synoptic diagram with substrate of Information Level and coding layer;
Fig. 2 C is the process flow diagram according to Method of printing of the present invention;
Fig. 3 A is the symbol definition figure that is used for the pattern of Fig. 1;
Fig. 3 B is the synoptic diagram of base page descriptor code that is used for the pattern of Fig. 1;
Fig. 3 C is the synoptic diagram of font defi-nition that is used for the pattern of Fig. 1;
Fig. 3 D is used for the pattern of Fig. 1 and based on the synoptic diagram of the page-describing code of the font defi-nition among Fig. 3 C;
Fig. 3 E is the synoptic diagram of the page-describing code that produces among another embodiment;
Fig. 4 A～4H shows the figure of different spaces symbol arrangement be used for Method of printing of the present invention is applied to the pattern of Fig. 1;
Fig. 5 A is the figure that shows the second prior art coding pattern;
Fig. 5 B is the synoptic diagram of font defi-nition that is used for the pattern of Fig. 5 A;
Fig. 6 A is the figure that shows the 3rd prior art coding pattern;
Fig. 6 B is the figure of symbol definition that is used for the pattern of Fig. 6 A;
Fig. 6 C is the synoptic diagram of font defi-nition that is used for the pattern of Fig. 6 A;
Fig. 7 is the schematic block diagram of the electronic circuit part in the printer shown in Fig. 2 A.
Embodiment
Fig. 1 has described a part that is used for illustration absolute position encoder pattern of the present invention.Describe this position encoded pattern in detail in the open WO 01/26032 of applicant's international monopoly, wherein said patent disclosure is hereby incorporated by.The coding pattern of Fig. 1 mainly is made up of the simple graph symbol, and this symbol can adopt four different values, can encode to the information of dibit thus.Each symbol all comprises a mark 10 and spatial reference point or nominal position 12, and wherein certain distance be removed or be offset to mark 10 can from nominal position 12 along a direction in four different directions.The value of each symbol is provided by sense of displacement.Symbol is then arranged by nominal position 12, grating of formation rule (raster) or grid 14 thus, and wherein said grating or grid can be virtual and can not be included in the coding pattern significantly thus.Can think that so then symbol is arranged in the two dimensional symbol space by mesh definition regularly.
Each absolute position all is to be encoded by the rendezvous value of the symbols in the coding window, and for example, described window can comprise 6 * 6 adjacent-symbols.In addition, be that this coding is " floating " on the meaning of being encoded by the coding window that has moved single mesh spacing from the adjacent position.In other words, each symbol all can work to the coding of several positions.
Disclosed coding pattern among Fig. 1 can be used for being encoded in position and other data like that as the open WO of applicant's international monopoly 01/71653, perhaps can encode to other data except the position.
The coding pattern of Fig. 1 can reproduce in the substrate with high information density.Mesh spacing (shown in 16 among Fig. 1) can be 0.3 millimeter usually, and height be 25 centimetres and wide be that described spacing will be transformed into the symbol more than 400,000 on 15 centimetres the page.Clearly, it can be very difficult wanting to print this highdensity coding pattern with proper speed on conventional digital printer.
In Fig. 2 A, shown the system that is used to print this high density coding pattern.This system comprises computing machine 20 and printer 21.Printer 21 can adopt communication mode to link to each other with computing machine 20, can export page description file 22 thus, so that it is sent to printer 21 from computing machine 20.
What Fig. 2 C described is some key step that can carry out in computing machine 20 in the process that generates the page description file 22 that will be provided for printer 21.
In step 201, the numeral of retrieve encoded layer from the storer that is associated with computing machine 20 suitably wherein.The numeral of coding layer 25 can adopt the form that produces in advance to offer computing machine 20, also can be generated by computing machine 20 as required.For example, numeral can comprise above-mentioned value of symbol, wherein the mutual spatial disposition between the hold mark.Equally, step 201 can comprise the numeral of the Information Level 26 that will print is retrieved.
Step 202 comprises to be retrieved character definition, and wherein one group of character is defined, so that represent mutual unique encoding graphical symbol group.Character definition can be predefined, perhaps can be for specific print example produces, and can after a while it be sent to printer with page-describing code.In addition, if this definition is predefined, it is in the nonvolatile memory of printer probably so.
Each class symbol has all defined one and has had the value of symbol combination that designated space is arranged.Symbol in one group there is no need adjacent one another are, but can have any space mutual relationship, as long as the spatial disposition of the symbol in described mutual relationship and the coding pattern matches, for example, described spatial disposition can be that the regular grid of Fig. 1 is arranged, and wherein to there is no need be that distance equates or quadrature in this arrangement.
In step 203, wherein will resolve the coding layer digital and represent according to character definition.More particularly, the distinct symbols group contrast numeral that is included in the character definition is shone upon.For each coupling, respective symbols will be kept in the data structure, so that represent its corresponding symbols.Therefore, will create in step 204 based on the coding layer of character and represent, wherein the given combination of the coded identification that designated space arranges all represented to have in each character.
In step 205, wherein will produce page-describing code for Information Level.This step can be carried out according to prior art well known by persons skilled in the art.
In step 206, represent and to be attached in the page-describing code based on the coding layer of character, so that be that Information Level and coding layer produce final page-describing code.
Producing before or simultaneously, step 205 and 206 can alternately be carried out based on the expression (step 203～204) of character.In addition, step 206 can be carried out before step 205 or with it simultaneously.In addition, can get rid of step 205 fully lacking under the situation of any Information Level.
The above-mentioned generative process of page-describing code is adapted at being performed in computing machine 20 under the control of computer program, wherein said computer program can be embodied in the recording medium, also can be kept in the computer memory, can also be embodied in the random access memory or on electric carrier signal and be transmitted.
Further specify the concrete feature and advantage of the method for above summarizing in the mode of example referring now to Fig. 3～6.Wherein all examples all are based on and use the PostScript programming language to produce page description file.
As mentioned above, the coding pattern of Fig. 1 is based on four different coded identifications.As shown in Figure 3A, in the PostScript coding, each symbol can be represented by the func-tion/program calls (call) of space (shown in "-" in the accompanying drawing) form and unique function/program name.Corresponding function/program (not shown) comprises the PostScript instruction, so that pointer is moved to the print position of appointment from reference position, produces the round dot of specifying size and print position is reset to new reference position at print position thus.
Therefore, in the PostScript coding, the coding layer can be represented with one group of function/program definitions and one group of func-tion/program calls.Fig. 3 B has described such one group of func-tion/program calls, and wherein each provisional capital is corresponding with the delegation's coded identification among Fig. 1.Each row PostScript sign indicating number all is to be finished by new line command (" _ n ").Because a large amount of single function/routine calls is arranged, therefore, the file that obtains will be very big and be handle intensive.
The substitute is, can define a kind of font, and use it for the coding layer in the representation page description document.In Fig. 3 C, provided the example of this font.A unique encoding symbols all represented in each character in this font, and here this groups of coded symbols is the capable section of three continuous symbols.Therefore, the symbol space size of the group that each is so all is 1 * 3 (number of symbol row, the number of symbol rank).For example, font characters (A) is defined as comprises: with respect to moved up first point of distance to a declared goal of first nominal position, with respect to moved up second point of distance to a declared goal of second nominal position, and moved up distance to a declared goal thirdly with respect to the 3rd nominal position.
The PostScript language is a kind of text based programming language according to ASCII fromat.Therefore, in a kind of font, can use 128 unique characters to represent symbols, and this is less than any predefined character of basic function/routine call that is, for example " % ", "/", " (", ") " etc.In Fig. 3 C, 1 * 3 unique symbols can be with 64 character representations.Font among Fig. 3 C can be defined as bit-mapped font or profile (outline) font.In bit-mapped font, each character (each symbols of 1 * 3 just) is represented as the pixel image of fixed size.In cutline font, the size of each character can be scalable, and these characters are represented with mathematic(al) representation.
In the process of creating page description file, the numeral of coding layer is resolved in symbol space, and in this example, described parsing is carried out line by line, thus coding pattern is divided into symbols, wherein each such group all is to be represented by the font characters in the page-describing code.In order to describe, in Fig. 1, these symbols are represented with frame 18.
Fig. 3 D is based on the schematic form of the page-describing code of the coding pattern among the Fig. 1 of the font defi-nition among Fig. 3 C.Certainly, actual page description file will comprise more multielement (expense), the definition (with reference to Fig. 3 C) of for example definition of coding pattern base attribute (for example mesh spacing, mark size, marking bias), each font characters, is used in the printer instructions (for example based on the font defi-nition among Fig. 3 C) of font dictionary structure customization font and is used to retrieve and scalable customization font and the printer instructions of this font being set for current font.Actual page description file also comprises the page-describing code and the coding pattern of the graph data that will print.
This method based on font has a lot of general advantages.Font characters represents it is compact, compares with the expression of Fig. 3 B, and this expression will significantly reduce the coded order number.For example, to above-mentioned 15 * 25cm
2The page, conventional PostScript sign indicating number (based on Fig. 3 B) will surpass 815,000 bytes (expense that comprises about 300 bytes), and PostScript sign indicating number of the present invention is (based on Fig. 3 C～3D) then comprise about 150,000 byte (expense that comprises about 3～10,000 byte).In addition, also can handle and digital printer is optimized usually, even digital printer can be equipped with the dedicated cache storer that is used for font defi-nition at font.In addition, because font characters has the size (cutline font) that pre-sizing (bit-mapped font) maybe can be set, so printer can be calibrated continuous character automatically under the situation that does not need clear and definite reset instruction.Can also help to improve the processing speed of printer like this.In addition, because the conversion of (Portable Document format) sign indicating number can have benefited from the text packing ability based on font that existing PostScript to PDF converter is had from the page-describing code to PDF, therefore, with regard to the size of processing speed and the PDF sign indicating number that obtains, also may make described conversion more efficient based on the method for font.
Turn back to Fig. 3 C, should be noted that font defi-nition also comprises the font characters (7,8,9,0) that is used to represent 1 * 1 unique symbols, promptly unique symbol itself.Do like this so that the symbol remnants that possible mismatch produced of the size of the group in the symbol space with the coding pattern size are handled.This mismatch can occur in relative relatively prime (prime) on big or small one or two dimension at symbol space of coding pattern size and group.In the example of Fig. 1, each provisional capital of coding pattern has 13 symbols.Clearly, all symbols can't be divided into the group of three symbols.Therefore, a symbol of each row is represented with single sign character.In more advanced scheme, font defi-nition can comprise other symbols, and 1 * 2 symbols for example is so that handle this problem.
The symbols arrangement that should be noted that other is possible equally.Fig. 4 has shown the group example that can be used to represent three symbols: and linear adjacent arrangement (Fig. 4 A and 4C), linear non-adjacent arrangement (Fig. 4 B), the adjacent arrangement of diagonal line (Fig. 4 D) and non-linear adjacent arrangement (Fig. 4 E～4H).Can comprise having the combinations of symbol groups that different spaces is arranged with a kind of font defi-nition.
In a further embodiment, character definition is associated together func-tion/program calls and symbols, rather than font characters is related with it.Fig. 3 E shows be can be in page description file one group of func-tion/program calls of the coding pattern in the presentation graphs 1.This page description file is based on character definition, and what wherein each space and character combination were represented is the printer instructions that is used to produce 1 * 3 unique symbols.Should be noted that " _! " be used to indicate symbols " _ r_d_l ", rather than " _ n ", and in the PostScript language, " _ n " has predetermined connotation (new delegation).Compare with the expression of Fig. 3 B, this method has significantly reduced coded order quantity.Get back to 15 * 25cm
2The example of the page, PostScript sign indicating number will reduce to about 285,000 bytes (expense that comprises about 10,000 bytes).Should be noted that page description file can comprise that the confession printer with the instruction that the func-tion/program calls result deposits buffer memory in, improves printer processes speed thus.Therefore, printer can only be retrieved accordingly result from the buffering storer, rather than carries out each and call.
What Fig. 5 A showed is another coding pattern, and this pattern is based on two different symbols: point 50 and a little bigger 52.Therefore, each symbol can be encoded to 1 bit information.In coding pattern, coded identification is isolated regularly.Similar to the coded image of Fig. 1, in the coding window 54 of specifying size, symbol can be encoded to the absolute position.In addition, coding window 54 can also be overlapping, and each symbol can help to carry out the coding (relocatable coding) of several positions thus.Also coding pattern is described among the above-mentioned WO 00/73983, wherein said patent disclosure is hereby incorporated by.
What Fig. 5 B described is to produce the font defi-nition of using in the process of page description file for this coding pattern.What here, " _ S " and " _ L " represented respectively is to be used to produce point and a little bigger instruction set.Font defi-nition has comprised 64 font characters, and wherein each font characters is all represented 1 * 6 unique symbols.In addition, in order to handle mismatch problems, font defi-nition also comprises eight font characters of 1 * 3 a unique symbols of each expression, and two font characters of 1 * 1 a unique symbols of each expression.
In other font defi-nition (not shown), 1 * 6 symbols can be replaced by 6 * 1,3 * 2 or 2 * 3 symbols.As another alternative, similar to Fig. 3 E, described font defi-nition can be changed into the definitions set of the func-tion/program calls that is used to produce unique character group.
Then, page description file can produce as top just Fig. 2～3 are described.
What Fig. 6 A showed is the 3rd coding pattern, and this pattern is made up of rule symbol at interval.Each symbol comprises mark 60 and nominal position 62, and wherein value of symbol is provided by the size of sense of displacement and mark (a little bigger 64, point 66).As Fig. 6 B was cited, coding pattern comprised eight distinct symbols.Describe this pattern in U.S. Patent Publication 2003/0066896 in detail, wherein said patent disclosure is hereby incorporated by.
What Fig. 6 C described is at the example that produces the font defi-nition of using in the process of page description file according to said method.Here, each in 64 unique font characters is all represented 1 * 2 a unique symbols, and the additional aggregates with eight font characters is represented 1 * 1 unique symbols.Equally, other symbols arrangements also are operable, and font defi-nition can be changed into the definitions set of the func-tion/program calls that is used to produce unique symbols.
Then, page description file can produce as top just Fig. 2～3 are described.
In general, said method can be used for accelerating printing on demand of all coding patterns at conventional printer, and wherein said pattern is made up of the finite aggregate of circular symbol group.Therefore, only provide above-mentioned coding pattern in order to describe.In these and other relevant coding patterns, coded identification can have predetermined, the differentiable Graphic State of limited quantity, and wherein each state all can produce the symbolic coding value.These Graphic States can be represented with respect to sense of displacement, coded markings shape, coded markings size (diameter, surface area etc.), coded markings color (tone, gray scale, texture etc.) or its any combination of correlation space reference point with respect to displacement size, the coded markings of correlation space reference point with coded markings.In addition, in US 5,221,833; US 5,245, and 165; US 5,449, and 896; US 5,862, and 255; US6,000,613; US 6,330, and 976; DE 101 18304; Can find other example among WO 01/75773 and the WO01/71643 about the correlative coding pattern.
In a further embodiment, page-describing code is produced, and by means of the font characters of single symbol, promptly each only represents the font characters of a unique isolated sign with individually, and the presentation code pattern.This class embodiment still has benefited from the general advantage of above-mentioned method based on font, and for example can expect the foregoing description when the degree of priority of processing speed and simplicity surpasses file size.
Some primary clustering of the conventional digital printer that can be used for printing according to the present invention coding pattern has been described in Fig. 7 for the sake of completeness.This digital printer can comprise primary processor 70 (for example CPU, microprocessor), working storage 71 (for example RAM), stored memory 72 (for example ROM, PROM, EEPROM, flash memory), raster image processor (73), print engine controller 74 and communication interface 75 (for example USB, live wire, IrDA, bluetooth, Ethernet, parallel port, modulator-demodular unit), and these equipment are interconnected on bus structure 76.Storer 72 is preserved the software that is used for primary processor 70 and RIP73, and preserves the configuration data that comprises any resident font.When primary processor 70 received page description file via communication interface 75, its can operate to RIP 73, so that convert page-describing code the image of rasterisation to, wherein said image will be stored in the working storage 71.Alternatively, page description file can be processed, to produce coding layer and Information Level in the image of two separation.Then, print engine controller 74 is operated, with the image of the described rasterisation of retrieval from working storage 71, and, print engine 77 is controlled, with the hard copy of the image that produces described rasterisation.
Claims (32)
1. the method for a printing coding pattern of carrying out by computing machine, wherein said coding pattern comprises rule coded identification at interval, said method comprising the steps of:
Retrieve the numeral of described coding pattern;
The searching character definitions set, wherein this character definition collection specifies one group of character to represent the set of mutual unique group of described coded identification;
Contrast described numeral and shine upon the described set of unique group mutually, so that in described coding pattern, identify the position of respective sets;
Produce page-describing code, in described page-describing code, each group in the described respective sets is by its appointed character representation; And
Page-describing code is sent to printer, and wherein this printer is suitable for converting page-describing code to printable image.
2. according to the process of claim 1 wherein that described transfer step comprises described character definition collection is stopped delivering to described printer.
3. according to the process of claim 1 wherein that described generation step comprises described character definition assembly is incorporated in the page-describing code.
4. according to claim 1,2 or 3 method, the step of wherein said searching character definitions set comprises the retrieval font defi-nition.
5. according to the method for claim 4, wherein said font defi-nition defines cutline font.
6. according to the method for claim 4, wherein said font defi-nition defines bit-mapped font.
7. according to the method for claim 1, wherein said character definition collection is specified one group of second character, so that the independent coded identification that each in the presentation code pattern is unique, and the step of wherein said generation page-describing code comprises: if find that the symbol quantity in the dimension of the coding pattern that will print is relative relatively prime with number of coded symbols in described group the respective dimensions, then represent at least one coded identification by its corresponding second character.
8. according to the process of claim 1 wherein that described generation step comprises the page-describing code of generation as text.
9. method according to Claim 8, wherein said text is Postscript file or printer control language file.
10. according to the process of claim 1 wherein that each coded identification all is to represent with the corresponding encoded value in the described numeral.
11. according to the method for claim 10, wherein a plurality of described encoded radios are encoded to a position jointly.
12. according to the method for claim 10 or 11, wherein each encoded radio all can work to the coding of a plurality of positions.
13. according to the method for claim 10 or 11, wherein each encoded radio is represented predetermined, the differentiable Graphic State of described coded identification.
14. according to the method for claim 13, wherein each coded identification comprises coded markings and relevant spatial reference point, wherein said state is to represent by the characteristic of selecting from the group that comprises following characteristic:
Described coded markings is with respect to the displacement size of its relevant spatial reference point;
Described coded markings is with respect to the sense of displacement of its relevant spatial reference point;
The shape of described coded markings;
The size of described coded markings;
The color of described coded markings;
And any combination of above-mentioned characteristic.
15. according to the method for claim 14, wherein said spatial reference point quilt in described coding pattern is spaced apart regularly.
16. the method by the printing coding pattern of computing machine execution, wherein said coding pattern comprises rule coded identification at interval, said method comprising the steps of:
Retrieve the numeral of described coding pattern;
The retrieval font defi-nition, wherein unique font characters of this font defi-nition appointment is represented each the unique encoding symbol in the described coding pattern;
The described unique encoding symbol of sign in described numeral;
Produce page-describing code, in described page-describing code, each in Biao Shi the coded identification is represented by its appointed font characters thus; And
Page-describing code is sent to printer, and wherein this printer is suitable for converting page-describing code to printable image.
17. an equipment that is used to print coding pattern, wherein said coding pattern comprise rule coded identification at interval, this equipment comprises:
Be used to retrieve the device of the numeral of described coding pattern;
The device that is used for the searching character definitions set, wherein this character definition collection specifies one group of character to represent the set of mutual unique group of described coded identification;
Be used to contrast described numeral and shine upon the described set of unique group mutually, so that in described coding pattern, identify the device of the position of respective sets;
Be used to produce the device of page-describing code, wherein in described page-describing code, each group in the described respective sets is by its appointed character representation; And
Be used for page-describing code is exported so that be sent to the device of printer, wherein this printer is suitable for converting page-describing code to printable image.
18. according to the equipment of claim 17, the wherein said device that is used to export is configured to export described character definition collection so that be sent to described printer.
19. according to the equipment of claim 17, the wherein said device that is used for producing is configured to described character definition assembly is incorporated into page-describing code.
20. according to claim 17,18 or 19 equipment, the wherein said device that is used for the searching character definitions set is configured to retrieve font defi-nition.
21. according to the equipment of claim 20, wherein said font defi-nition definition cutline font.
22. according to the equipment of claim 20, wherein said font defi-nition definition bit-mapped font.
23. equipment according to claim 17, wherein said character definition collection is specified one group of second character, so that the independent coded identification that each in the presentation code pattern is unique, and the wherein said device that is used for producing is configured to: if find that the symbol quantity of a dimension of the coding pattern that will print is relative relatively prime with number of coded symbols in described group the respective dimensions, then represent at least one coded identification by its corresponding second character.
24. according to the equipment of claim 17, the wherein said device that is used to produce is configured to produce the page-describing code as text.
25. according to the equipment of claim 24, wherein said text is Postscript file or printer control language file.
26. according to the equipment of claim 17, wherein each coded identification all is to represent with the corresponding encoded value in the described numeral.
27. according to the equipment of claim 26, wherein a plurality of described encoded radios are encoded to a position jointly.
28. according to the equipment of claim 26 or 27, wherein each encoded radio all can work to the coding of a plurality of positions.
29. according to the equipment of claim 26 or 27, wherein each encoded radio is represented predetermined, the differentiable Graphic State of described coded identification.
30. according to the method for claim 29, wherein each coded identification comprises coded markings and relevant spatial reference point, wherein said state is to represent by the characteristic of selecting from the group that comprises following characteristic:
Described coded markings is with respect to the displacement size of its relevant spatial reference point;
Described coded markings is with respect to the sense of displacement of its relevant spatial reference point;
The shape of described coded markings;
The size of described coded markings;
The color of described coded markings;
And any combination of above-mentioned characteristic.
31. according to the equipment of claim 30, wherein said spatial reference point quilt in described coding pattern is spaced apart regularly.
32. an equipment that is used to print coding pattern, wherein said coding pattern comprise rule coded identification at interval, described equipment comprises:
Be used to retrieve the device of the numeral of described coding pattern;
Be used to retrieve the device of font defi-nition, wherein unique font characters of this font defi-nition appointment is represented each the unique encoding symbol in the described coding pattern;
Be used for device at the described unique encoding symbol of described numeral sign;
Be used to produce the device of page-describing code, wherein in described page-describing code, each in Biao Shi the coded identification is represented by its appointed font characters thus; And
Be used for page-describing code is exported so that be sent to the device of printer, wherein this printer is suitable for converting page-describing code to printable image.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0301548A SE0301548D0 (en) | 2003-05-26 | 2003-05-26 | on-demand printing or coding patterns |
| SE03015484 | 2003-05-26 | ||
| US60/473201 | 2003-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1806222A CN1806222A (en) | 2006-07-19 |
| CN100362463C true CN100362463C (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800165507A Active CN100362463C (en) | 2003-05-26 | 2004-05-26 | Method for compressinga digital representation containing a page-describing code, which is sent from a computer to a printer |
Country Status (2)
| Country | Link |
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| CN (1) | CN100362463C (en) |
| SE (1) | SE0301548D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827817A (en) * | 2011-08-01 | 2014-05-28 | 微软公司 | Reducing font instructions |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8625165B2 (en) * | 2010-06-22 | 2014-01-07 | Microsoft Corporation | Optimized font subsetting for a print path |
| WO2016149029A1 (en) * | 2015-03-19 | 2016-09-22 | Videojet Technologies Inc | Method of providing coding instructions to a printer |
| CN108664224A (en) * | 2017-04-02 | 2018-10-16 | 田雪松 | Coding pattern processing method and processing device |
| CN108664862A (en) * | 2017-04-02 | 2018-10-16 | 田雪松 | Position encoded file output system |
| CN108334922B (en) * | 2018-03-13 | 2020-01-21 | 深圳闳宸科技有限公司 | Dot matrix two-dimensional code and encoding and identifying method thereof |
| US10462326B2 (en) * | 2018-03-28 | 2019-10-29 | Xerox Corporation | Machine readable security mark and process for generating same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071653A1 (en) * | 2000-03-21 | 2001-09-27 | Anoto Ab | Method and system for storing a coding pattern |
| WO2002082366A1 (en) * | 2001-04-05 | 2002-10-17 | Anoto Ab | Method for processing information |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071653A1 (en) * | 2000-03-21 | 2001-09-27 | Anoto Ab | Method and system for storing a coding pattern |
| WO2002082366A1 (en) * | 2001-04-05 | 2002-10-17 | Anoto Ab | Method for processing information |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827817A (en) * | 2011-08-01 | 2014-05-28 | 微软公司 | Reducing font instructions |
| CN103827817B (en) * | 2011-08-01 | 2016-05-11 | 微软技术许可有限责任公司 | For reducing the method and system of font instructions |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0301548D0 (en) | 2003-05-26 |
| CN1806222A (en) | 2006-07-19 |
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