JP2011059914A - Fast distribution method for electronic sentence and word using variety of font - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently transmit only the fonts of necessary characters in a file of Japanese language fonts in accordance with the bandwidth of a network and a client's performance. <P>SOLUTION: A fast font distribution system 12 includes a compression optimization engine 3 and a font selection engine 5. The fast font distribution system 12 is mounted in a server machine 10 and communicates with a font database 7. A client software 1 is mounted in a client machine 8. As the client software 1 communicates with the fast font distribution system 12, the necessary font file compressed is distributed at high speed from the server machine 10 to the client software 1 of the client machine 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a method for delivering sentence or word data using various fonts from a server system to a client system at high speed.

It is difficult to display beautiful characters familiar to Japanese people using various fonts on the client machine, such as web browsing using a web browser. This is because the limited fonts installed on the client system must be used.
Various tools have been developed, but there are many technologies such as those limited to the alphabet or displayed as images at the expense of the beauty of the font. In addition, many problems remain as in the problem to be solved by the invention. The present invention enables high-speed distribution and display of non-alphabetic characters represented by most Japanese defined by Unicode, and displays fonts beautifully.

The Western alphabet is 26 typefaces in English. Even if a symbol is combined, it will fit in the ASCII character code. Therefore, Western font files are several to several tens of kilobytes. On the other hand, in the case of Japanese, since kanji is included, the number of font typefaces is extremely large. Therefore, Japanese font files often have several megabytes even when Unicode is not included. When a file of several megabytes is distributed to a web page, a large delay occurs for a general user in the current general bandwidth. In the present invention, only the fonts of necessary characters are transmitted in the Japanese font file according to the bandwidth of the network and the performance of the client.
When characters on a web page are replaced with an image file or a flash file (SWF), they are not indexed by the search engine. Therefore, it is embedded as an alternative character in the HTML.
One of the benefits of web pages is that you can copy and paste content. Copy and paste content is a real need. If only a typeface is to be transmitted, it is possible to send it as an image file such as JPEG or GIF. However, simply displaying an image file on a web page cannot answer the need for copy and paste. Further, when an image file is used, it becomes a bitmap, so that there is a disadvantage that the definition of the font typeface cannot be used effectively.
Many fonts that support Unicode have been shipped to realize Asian fonts including Japanese and Chinese. When all the fonts covered by Unicode are viewed as a single file, the size is several megabytes to several tens of megabytes. Therefore, in order to realize transmission of various types of fonts that are covered by Unicode, it is essential to have a function of optimizing and transmitting only necessary characters according to the network bandwidth.
If a font file containing all typefaces is distributed directly, there is also a problem with intellectual property. In particular, in the case of a format including an outline such as swf, it is desirable to transmit only one part of the font instead of transmitting all the fonts.
In the conventional techniques of Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, and Patent Document 5 shown below, when sending a font, the file size of the font to be transmitted is considered in consideration of the network bandwidth. To cover all the character types included in Unicode, there is no realization or a mechanism to cut off part of it. There was a problem.
Special table 2008-525840 JP2008-165264 JP-A-11-282829 JP 2001-56796 A Patent 3691403

Therefore, the following method and system are proposed for the purpose of efficiently transmitting only the necessary typefaces of Japanese font files.
In other words, in order to solve the above-mentioned problems of the prior art, the method of claim 1 aims at distributing sentence or word data using various fonts from the server system to the client system. The step of creating text or word data in the server system using the font, and deleting the font data on the server system according to the network load or the performance of the client system, Optimizing or compressing the size of sentence or word data, transmitting the data optimized or compressed in all steps from the server system to the client system, and displaying the data on the client system; It is characterized by having.
As a method of solving the above-mentioned problems of the prior art and using only fonts that do not exist in the client system, the method of claim 2 is the method of claim 1 and uses only fonts that do not exist in the client system. It is characterized by including.
As a method for solving the above-mentioned problems of the prior art and quickly responding to a response from a client system, the method of claim 3 is the method of claim 1, in particular, a cache database on a server system. It is characterized by having a method that speeds up installation.
As a method for solving the above-mentioned problems of the prior art and delivering an image or a moving image to a client system, the method of claim 4 is the method of claim 1 and can deliver an image or a moving image in particular. It is characterized by having a method to do.
As a method for solving the above-described problems of the prior art and realizing copy and paste on the client, the method of claim 5 is the method of claim 1, wherein font outline information is simultaneously transmitted. And a method for enabling copying on a client system.
The method of claim 6 is a method for solving the above-mentioned problems of the prior art and adjusting and expressing the color, size, inclination, thickness, etc. of characters on the client system. By sending the character color, character size, character inclination, or character thickness information at the same time on the client system, the character color, character size, character inclination, Or it has the method of enabling the operation of the information of the thickness of a character.
A web application system, such as a homepage creation system, a content management system, or a blog system, that solves the problems of the prior art described above. The method or software system according to item 6 or claim 7 is used.
Use of the method or software system of claim 1, claim 2, claim 3, claim 4, claim 5, claim 7, or claim 7 in a system that solves the problems of the prior art described above. A system characterized by being a document creation system that does not use the web.

According to claim 1, the present invention reduces the size of text or word data by deleting excess font data on the server system according to the network load or the performance of the client system. Has a step to optimize or compress. Unlike the prior art, text or word data can be transmitted without delay.
According to the second aspect of the present invention, it is possible to use only a font that does not exist in the client system. According to the present invention, even text and word data using a font that does not exist in the client system can be efficiently sent from the server system and displayed or edited.
According to claim 3, it is possible to speed up the response to the request from the client system by installing the cache database on the server system.
According to claim 4, it is possible to transmit multimedia data including not only sentences and words but also images and moving images by simultaneously distributing images or moving images.
According to the fifth aspect of the present invention, the font outline information is sent at the same time, thereby enabling operations such as copy and paste on the client system.
According to the sixth aspect of the present invention, it is possible to simultaneously send information on the font color, character size, character inclination, or character thickness of the font, and the character color, size, inclination on the client system. , Thickness etc. can be edited or adjusted and displayed.
According to claim 7, by using the method or software system of claim 1, claim 2, claim 3, claim 4, claim 5, claim 6, or claim 7, various fonts can be obtained. Web application systems such as the homepage creation system, content management system, and blog system used can be created. In these systems, by efficiently transmitting various fonts without waiting time, it is possible to construct a system that does not burden the user with waiting time.
According to claim 8, by using the method or software system of claim 1, claim 2, claim 3, claim 4, claim 5, claim 6 or claim 7, a web browser or web server It is possible to construct a document creation / edit display system based on a client server that does not use a WWW system.

Here, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a basic configuration of a high-speed font delivery system according to claim 1 of the present invention.
The font high-speed distribution system 12 includes a compression optimization engine 3 and a font selection engine 5. The font high-speed distribution system 12 is mounted on the server machine 10 and communicates with the font database 7. The client software 1 is installed on the client machine 8. Communication between the client software 1 and the high-speed font distribution system 12 allows a necessary compressed font file to be distributed from the server machine 10 to the client software 1 of the client machine 8 at high speed.
The client software 1 installed in the client machine 8 can be replaced with general software such as a web browser. The client software 1 transmits a necessary font request to the compression optimization engine 3 of the font distribution system 12 by communication 9 such as HTTP communication.
In order to realize the step (1) of claim 1, the compression optimization engine 3 that has received the request sends a request to the font selection engine 5 of the high-speed font distribution system 12 for a required font and an appropriate compression rate via the communication 11. Send.
The font selection engine 5 that has received the request requests the font database 7 to acquire a necessary font through the communication 13.
The font database 7 that has received the request returns font information to the font selection engine 5 through communication 6.
In order to realize the step (2) of claim 1, the font selection engine 5 that has received the font information transmits the font information to the compression optimization engine 3 through communication 4.
In order to realize the step (2) of claim 1, the compression optimization engine selects necessary font information designated by the communication 11 in the font database 7. The font information is compressed based on the compression rate specified by the communication 11. Next, the size of the file including the font information is optimized in accordance with the bandwidth of the network, and transmitted to the client software by communication 2.

FIG. 2 shows a compression algorithm. Enter the maximum value m of the font file as the compression ratio. Generate a font file containing the necessary fonts and other fonts. Determine whether the font file size is m or less. If m or less, compression ends. If m or more, remove unnecessary fonts. If there are unnecessary fonts, it is further determined whether the size of the font file is m or less, and the font deletion is repeated. If there are no unnecessary fonts, the compression is stopped at that point and the compression ends.
The client software 1 displays text or the like to the user using the received font information.
In the high-speed font distribution system according to the first aspect, even when the same font as the font stored in the font database of the client system is generated, the fonts are collectively transmitted to the client side in order to realize high-speed distribution.
In the high-speed font distribution system according to claim 2, the font stored in the font database of the client system is not transmitted from the server system. The compression engine of 3 does not communicate unnecessary fonts to the client machine.
FIG. 4 shows a font high-speed distribution system using the cache database 16 of claim 3. The cache database 16 is constructed on a faster memory. The font selection engine first queries the cache database, which is a faster memory, when retrieving the required fonts. If not in the cache, the font database is queried (17) and the result is obtained (15).
FIG. 5 shows an image moving image high-speed delivery system according to claim 4. Searches and distributes necessary images and videos from image and video databases as well as fonts.
The distribution of the font outline of claim 5 is performed by adding not only the basic dot data of the font but also the outline (border) information in the communication of 6, 4 and 2 in FIG. Allows you to copy and paste font shapes.
The distribution of a lot of information of the font of claim 6 is not only the basic dot data of the font but also the character color, the character size, the character inclination, or the character in the communication of 6, 4 and 2 in FIG. By adding the thickness information, the font is expressed on the client system 1 by various expression methods.
In claim 7, in a web application system whose main function is to store a sentence, such as a homepage creation system, a content management system, a blog system, etc. It expresses with.
According to the eighth aspect of the present invention, the characters of the text written by the user are expressed by various fonts using the present invention in the client / server system without using the web system.

It is a figure which shows the basic composition of the font high-speed delivery system of Claim 1 by this invention. It is a flowchart of the algorithm of compression of the font data in step (2) of claim 1 according to the present invention. It is a figure which shows the basic composition of the font high-speed prestige system of Claim 2 by this invention. It is a figure which shows the basic composition of the font high-speed delivery system of Claim 3 by this invention. It is a figure which shows the basic composition of the image moving image high-speed delivery system of Claim 4 by this invention.

1 client software 2 transmission of optimized file including font information 3 compression optimization engine 4 transmission of file cut out necessary font information 5 font selection engine 6 transmission of necessary font from font database 7 font database 8 client Machine 9 Necessary font information request 10 Server machine 11 Necessary font information request 12 Font high-speed delivery system 13 Necessary font information request 14 Font database 15 on client system Reply from font database to cache 16 Cache database 17 Sending request from cache to font database 18 Image and video selection engine 19 Image and video database

Claims (8)

A method for distributing sentence or word data using various fonts from a server system to a client system has the following steps (1) to (3).
(1) A step of creating sentence or word data in the server system using various fonts.
(2) A step of optimizing or compressing the size of text or word data by deleting font data on the server system in accordance with network load or the performance of the client system.
(3) A step of transmitting the data optimized or compressed in step (2) from the server system to the client system and displaying it on the client system. 2. The method of claim 1, wherein only fonts that are not in the client system are used. 2. The method according to claim 1, wherein the speed is increased by installing a cache database on a server system. The method according to claim 1, wherein an image or a moving image can be distributed. 2. The method according to claim 1, wherein the outline information of the font is simultaneously transmitted to enable copying on the client system. The method according to claim 1, wherein the character color, the character size is transmitted on the client system by simultaneously transmitting the character color, the character size, the character inclination, or the character thickness information. A method that allows manipulation of information on the character tilt or character thickness. Using the method or software system of claim 1, claim 2, claim 3, claim 4, claim 5, claim 6 or claim 7, such as a homepage creation system, content management system, blog system, Web application system. A document creation system that does not use the web, using the method or software system of claim 1, claim 2, claim 3, claim 4, claim 5, claim 6, or claim 7.