CN1196069C - Super-text display system and device - Google Patents

Abstract

The invention discloses a hypertext display system and device. In this display system, the hypertext providing device provides the user with the hypertext data representing a map composed of a character code string corresponding to the simplified map font data, and the hypertext display device utilizes the user's operation to obtain the provided hypertext data to the user. hint.

Description

hypertext display system

technical field

The present invention mainly relates to a system for providing information services to small portable terminals utilizing map data.

Background technique

In recent years, due to the development of communication technology and the completion of communication infrastructure, it has been possible to use the Internet to provide users with multimedia information services including text and images. Furthermore, in order to make users more convenient, services that provide information by combining information with maps as images have begun to be used. On the other hand, the miniaturization of terminal devices has progressed along with the establishment of radio infrastructure, and the use of the Internet in a mobile environment is becoming widespread.

Usually, the form of Hyper Text (or HT for short) called HTML (Hyper Text Markup Language, Hyper Text Markup Language) is used in the communication that provides multimedia information, and the user operates with software called a browser (Browser). The hypertext display terminal performs browsing and link selection operations on data in this form. Here, the operation until the conventional hypertext display terminal receives hypertext data including map information, displays it on the screen, and acquires information connected on the map will be described.

Fig. 66 is a structural diagram of a conventional hypertext display terminal. In Figure 66, 4901 is an input device such as a mouse that provides input operations to the user, 4902 is an input control unit that receives instructions from the user through the above-mentioned input device, 4903 is an output device such as a display that provides visual information to the user, and 4904 is an output device through the above-mentioned input device. The output device is an output control unit for prompting information to the user, 4905 is a communication device such as a PHS (personal mobile phone system) that provides communication functions, and 4906 is a communication for sending and receiving data with a host computer 4916 through the above-mentioned communication device 4905 and through a network 4915 Control unit, 4907 is a storage device such as a hard disk that can hold data for a long time, 4908 is the font data that is stored in the above storage device and represents the shape of characters, and 4909 is a hypertext control unit that controls the acquisition and display of hypertext data and the distribution of user operation instructions. Text dialog control unit. The hypertext dialogue control unit has an image processing unit 4910 and a link mapping control unit 4911 .

Next, the display operation for displaying hypertext including map information by the hypertext display device configured as described above will be described. When the user instructs to display a new hypertext with a link reference or the like using the input device 4901 such as a mouse click, the input control unit 4902 transmits the instruction to the hypertext dialog control unit 4909 . Assume here that this indication is the display of hypertext tp: //host1/page1, then because the reference of hypertext data is on the external host 1, hypertext dialog control unit 4909 just instructs communication control unit 4906 to utilize communication device 4905 to communicate with the mainframe 1 communicates to get the hypertext data page 1 (page1).

Here, the first page of hypertext data will be described using FIG. 67 . Fig. 68 is a schematic diagram showing an example of conventional hypertext data including a map. In Fig. 67, 5001 is an example of a hypertext ML file. <FORM> defines the action specification when there is a user operation, and in this example, it is defined as requesting acquisition of /cgi-bin/index.cgi when there is a user input. "Click the place you want to enlarge" is a text string for display. <INPUT> defines the specifications of the interface for user input. In this example, it defines a key with image data map.gif attached, and adds the coordinates when the user clicks the key area to the argument (argument) obtained above. The map displayed in this way is called a server side clickable map (Server Side Clickable Map). The hypertext dialogue control unit 4909 obtains the image data map.gif in the same manner as the hypertext data, uses the image processing unit 4910 to develop the image data, determines the layout of the screen, and instructs the output control unit 4904 to display the screen on the output device 4903 . In FIG. 68, 5101 shows an example of the display screen of the first page of the hypertext data, and the content of the image data map.gif is displayed below the text string of "click the mouse on the place to be enlarged". it's here. The content of map.gif is an image of the area map.

Next, when the user selects a point on the map in 5101, the operation of the hypertext display device to obtain and display new hypertext data will be described. When the user instructs to select a location using the input device 4901 such as a mouse click, the input control unit 4902 transmits the instruction to the hypertext dialog control unit. Here, assuming that the instruction is designated by the police station of Toyama Town at 5101, the hypertext dialog control unit 4909 instructs the link map control unit 4911 to calculate the coordinates added as arguments, and instructs the communication control unit 4906 to use the communication device 4905 Communicate with the host 1, obtain the hypertext data returned by /cgi-bin/index.cgi corresponding to the argument, here is the acquisition 5002. Here, hypertext data 5002 will be described. "Please click the building you want to know" is a character string for display. <MAP> defines the specified position and link specifications on the map. In this example, the name of the definition is links (links), and the two areas correspond to pbox.htm and poffice.htm respectively. <IMG USEMAP> defines an image with links, which means the image data map2.gif, and displays actions according to the definition of the above links. A map displayed in this way is called a Client Side Clickable Map. The hypertext dialogue control section 4909 acquires the image data map2.gif, and displays the screen on the output device 4903 as in the case of displaying the first page. 5102 in FIG. 68 shows an example of the display screen at this time, and the content of the image data map2.gif is displayed under the text string of "Please click the building you want to know". Here, the content of map2.gif is the image of the enlarged map.

Next, when the user selects a point on the enlarged map in 5102, the hypertext display device obtains and displays new hypertext data for display. Once the user performs an operation such as scanning the map by using the input device 4901 such as moving the cursor with a mouse, the input control unit 4902 transmits the position of the cursor to the hypertext dialog control unit 4909, and the link mapping control unit 4911 determines when the cursor is located on the link area. causes the cursor to change shape to let the user know that the link exists. Next, when the user instructs selection using the input device 4901 such as a mouse click, the input control unit 4902 transmits the instruction to the hypertext dialog control unit 4909 . Here, assuming that the user specifies 5102 Toyama police station, the hypertext dialog control unit 4909 instructs the linked map control unit 4911 to obtain the URL (uniform resource address; UniformResource Locater) that should be acquired is pbox.hypertext m , to display it.

In addition, when providing map data, existing technologies that automatically generate as simple data as possible include Transactions of the Institute of Electronics, Information and Communication Engineers Vol.J80-D-11 No.3 1997 ) "A simple map for path understanding support and a generation system for its positioning part" and "Development of an automatic generation system for deformation maps" in Journal of the Information Processing Society (Vol.37 No.9 1996). The former discloses a technique for simplifying a map with angle quantization and intersection movement based on road network information. The latter discloses a technique of performing simplification and linearization on a block basis to generate a simplified route map.

However, in the above-mentioned prior art method, map data is transmitted as image data, so there is a problem that a browser that can only process text cannot display it. Furthermore, even if the image data can be displayed, since the image data is generally large in size, it takes time to use wireless communication with a low communication speed.

Also, a terminal that does not have a pointing device like a portable phone and a smart phone cannot simply perform a link selection operation associated with a map. In the case where the map is clickable on the server side, the user cannot designate coordinates. If the client can click on the map, the link can be obtained by displaying the link in a list, etc., but it cannot be directly selected from the map.

Also, with regard to the automatic generation of a simplified map, the current simplified map generation technology for peripheral positioning maps has various directions of the link data on the map once the displayed area is enlarged, so the generated simplified map may not always be accurate. accurately reflect the problems of the original map. On the other hand, the current simple map generation technology for route positioning is to form blocks into a simple map, so when the distance becomes longer, there is a problem that the picture cannot be seen clearly.

Contents of the invention

The present invention was made to solve the above-mentioned problems, and its first object is to provide a hypertext display device and system capable of displaying a map even with a browser that can only display text.

A second object of the present invention is to provide a hypertext display device and system capable of reducing the time required for data transmission when displaying a page including map information during hypertext browsing.

A third object of the present invention is to provide a hypertext display device and system that can easily perform an operation of clicking a map with a terminal that does not have a pointing device.

A fourth object of the present invention is to provide a hypertext display device and system capable of dynamically providing a simplified map for surrounding positioning maps with high accuracy even in a wide area and a simplified map for route positioning that is easy to see even at long distances .

In order to solve this problem, the present invention first provides a hypertext display device with simplified map character data as a set of simplified map characters for a simplified map.

By means of this, expressing the map with the character code string of the simplified map font can achieve the effect that the map can be displayed only with the text display function. Furthermore, since the character code string is relatively smaller in data volume than the image data of the map, there is an effect of shortening the communication time.

Secondly, the main idea is that the hypertext display device has a hypertext dialog control unit, and also has a font and graphic overlapping drawing unit.

With this, it is possible to increase the variety of maps that can be expressed with a limited set of fonts.

Thirdly, the hypertext providing device is equipped with a simplified map code string compression unit, and the hypertext display device is equipped with a simplified map code string expansion unit.

This shortens the communication time.

Fourth, the main idea is that the hypertext display device has an equidistribution mapping operation unit.

With this, even without a pointing device, it is possible to perform a link selection operation by specifying an area on the map.

Fifth, the gist is that the hypertext display device has a tag mapping operation unit.

In this way, even without a pointing device, it is possible to perform a link selection operation by specifying a mark on the map.

Sixth, the gist is that the simplified map code string generation device includes a simplified route map generation unit.

This makes it possible to automatically generate a simplified map for route positioning that is easy to see even at long distances.

Seventh, the gist is that the simplified map code string generating device includes a surrounding simplified map generating unit.

This makes it possible to obtain a simplified map for surrounding positioning that can be automatically generated with high accuracy even in a large area.

According to one aspect of the present invention, a kind of hypertext display system is provided, the hypertext providing device that provides hypertext data to the user, and utilize the user's operation to obtain the hypertext data provided by the hypertext providing device, to the user The hypertext display device configuration of prompting is characterized in that the hypertext data provided by the hypertext providing device at least includes data representing a map, and the data representing a map is represented by a text code string corresponding to the simplified map font data, The hypertext display device consists of an input device that provides input operations to the user, an input control unit that is connected to the input device and receives instructions from the user through the input device, an output device that provides visual information to the user, and is connected to the output device. An output control unit that prompts information to the user through the output device, a first communication device that provides communication functions, and a first communication device that is connected to the first communication device and performs data transmission and reception through the network by means of the first communication device. A communication control unit, a storage device capable of long-term data storage, respectively connected to the input control unit, the output control unit, the storage device, and the first communication control device and controlling the representation characters stored in the storage device The shape of the character font data, the simplified map font data representing the shape of the simplified map component stored in the storage device, and the hypertext dialog control unit for the acquisition and display of the hypertext data and the distribution of user operation instructions, the supertext The text providing device is composed of a second communication device that provides communication functions, a second communication control unit that is connected to the second communication device and performs data transmission and reception through the network by means of the second communication device, and obtains the information from the simplified map code string. The generating device obtains a simplified map code string obtaining unit, a hypertext generating unit that generates provided hypertext data, and is connected to the second communication control unit, the simplified map code string obtaining unit, and the The hypertext generation unit and a hypertext transmission control unit that generates and transmits hypertext according to the acquisition request received from the hypertext display device through the second communication control unit.

Description of drawings

Fig. 1 is a system configuration diagram of a hypertext display system according to a first embodiment of the present invention.

Fig. 2 is a block diagram of a hypertext providing device according to the first embodiment of the present invention.

Fig. 3 is a schematic diagram showing an example of hypertext data including a simplified map code string according to the first embodiment of the present invention.

Fig. 4 is a schematic diagram showing an example of a simplified map code table according to the first embodiment of the present invention.

Fig. 5 is a schematic diagram showing an example of a simplified map according to the first embodiment of the present invention.

Fig. 6 is a block diagram of a hypertext display device according to the first embodiment of the present invention.

Fig. 7 is a schematic diagram showing an example of a simplified map according to the second embodiment of the present invention.

Fig. 8 is a schematic diagram showing an example of hypertext data including a simplified map code string according to the second embodiment of the present invention.

Fig. 9 is a schematic diagram showing an example of a simplified map according to the third embodiment of the present invention.

Fig. 10 is a schematic diagram showing an example of hypertext data including a simplified map code string according to the third embodiment of the present invention.

Fig. 11 is a flowchart showing the operation of the overlay drawing unit according to the third embodiment of the present invention.

Fig. 12 is a schematic diagram showing an example of a simplified map according to the fourth embodiment of the present invention.

Fig. 13 is a schematic diagram showing an example of hypertext data including a simplified map code string according to the fourth embodiment of the present invention.

Fig. 14 is a schematic diagram showing an example of hypertext data including compressed simplified map code strings according to the fifth embodiment of the present invention.

Fig. 15 is a schematic diagram showing an example of hypertext data including an equipartition graph according to the sixth embodiment of the present invention.

Fig. 16 is a schematic diagram showing an example of map data according to a sixth embodiment of the present invention.

Fig. 17 is a schematic diagram showing an outline of a hypertext display device according to a sixth embodiment of the present invention and an example of a display screen of an equivalence map.

Fig. 18 is a schematic diagram showing an outline of a hypertext display device according to a sixth embodiment of the present invention and an example of an enlarged display screen of an equipartition map.

Fig. 19 is a schematic diagram showing an outline of a hypertext display device according to a sixth embodiment of the present invention and an example of a re-enlarged display screen of an equidistribution map.

Fig. 20 is a schematic diagram showing an example of a keyboard operation link correspondence table according to the sixth embodiment of the present invention.

Fig. 21 is a schematic diagram showing an outline of a hypertext display device according to a seventh embodiment of the present invention and an example of a display screen of an equivalence map.

Fig. 22 is a schematic diagram showing an example of a keyboard operation link correspondence table according to the seventh embodiment of the present invention.

Fig. 23 is a schematic diagram showing an example of a keyboard layout table according to the seventh embodiment of the present invention.

Fig. 24 is a schematic diagram showing an example of map data according to a ninth embodiment of the present invention.

Fig. 25 is a block diagram showing a hypertext providing device according to a tenth embodiment of the present invention.

Fig. 26 is a flowchart showing a simplified route map generating unit according to the tenth embodiment of the present invention.

Fig. 27 shows the output data of the route search unit or the input data input to the simplified route map generation unit according to the tenth embodiment of the present invention.

Fig. 28 is a comparison table of facility names and attribute IDs according to the tenth embodiment of the present invention.

Fig. 29 is a road map and route for route search according to the tenth embodiment of the present invention.

Fig. 30 is an angle quantization path according to the tenth embodiment of the present invention.

Fig. 31 shows the distance quantization path of the tenth embodiment of the present invention.

Fig. 32 is angle quantized path data according to the tenth embodiment of the present invention.

Fig. 33 is an example of the output of the simplified route map generating means according to the tenth embodiment of the present invention.

Fig. 34 is a schematic diagram showing an example of a simplified map code table according to the tenth embodiment of the present invention.

Fig. 35 is a schematic diagram showing an example of a simplified map code string according to the tenth embodiment of the present invention.

Fig. 36 is an intersection point shape font comparison table showing an example of the correspondence relationship between intersection points and the simplified map font graphics in Fig. 34 in the tenth embodiment of the present invention.

Fig. 37 is a flowchart showing a peripheral simplified map generating unit according to the eleventh embodiment of the present invention.

Fig. 38 shows an example of an original map designation range for generating a simplified peripheral map in the eleventh embodiment of the present invention.

Fig. 39 shows an enlarged view of a designated area according to the eleventh embodiment of the present invention.

Fig. 40 shows an enlarged view of a designated area according to the eleventh embodiment of the present invention.

Fig. 41 shows an enlarged view of a designated area according to the eleventh embodiment of the present invention.

Fig. 42 is an enlarged view of a designated area according to the eleventh embodiment of the present invention.

Fig. 43 shows an enlarged view of a designated area according to the eleventh embodiment of the present invention.

Fig. 44 is an enlarged view of a designated area according to the eleventh embodiment of the present invention.

Fig. 45 shows an example of processing when there are no intersections around in the eleventh embodiment of the present invention.

Fig. 46 shows an example of the center of the mesh to which the intersection point is moved in Fig. 35 according to the eleventh embodiment of the present invention.

Fig. 47 shows an example of angle quantization using the mesh with intersections in Fig. 36 according to the eleventh embodiment of the present invention.

Fig. 48 shows an example of making a character pattern map around intersections in Fig. 37 according to the eleventh embodiment of the present invention.

Fig. 49 shows an example of processing when the intersection is in the periphery according to the eleventh embodiment of the present invention.

Fig. 50 shows an example of the center of the grid to which the intersection point is moved in Fig. 39 according to the eleventh embodiment of the present invention.

Fig. 51 shows an example of angle quantization using the mesh with intersections in Fig. 40 according to the eleventh embodiment of the present invention.

Fig. 52 shows an example in which a font map is created around intersection points in Fig. 41 according to the eleventh embodiment of the present invention.

Fig. 53 shows an example of the finally generated font map according to the eleventh embodiment of the present invention.

Fig. 54 shows a display example of a simplified map in which roads are represented by two lines according to the eleventh embodiment of the present invention.

Fig. 55 shows an example of a simplified map in which roads according to the eleventh embodiment of the present invention are represented by two lines and the cut-off parts are improved.

Fig. 56 is a schematic diagram showing an example of a simplified map code table according to the twelfth embodiment of the present invention.

Fig. 57 is a flowchart showing the operation of the character conversion unit according to the twelfth embodiment of the present invention.

Fig. 58 is a schematic diagram showing an example of a simplified map code string according to the twelfth embodiment of the present invention.

Fig. 59 is a schematic diagram showing an example of an intersection shape font comparison table in the twelfth embodiment of the present invention.

Fig. 60 is a schematic diagram showing an example of grid intersection shape information in the twelfth embodiment of the present invention.

Fig. 61 is a schematic diagram showing an example of a simplified map code table according to the thirteenth embodiment of the present invention.

Fig. 62 is a schematic diagram showing an example of a simplified map code table according to the thirteenth embodiment of the present invention.

Fig. 63 is a schematic diagram showing an example of an intersection shape font comparison table in the thirteenth embodiment of the present invention.

Fig. 64 is a schematic diagram showing the relationship between intersection shape information and simplified map codes in the thirteenth embodiment of the present invention.

Fig. 65 is a schematic diagram showing an example of a simplified map code string according to the thirteenth embodiment of the present invention.

Fig. 66 is a structural diagram of a conventional hypertext display device.

Fig. 67 is a schematic diagram showing an example of hypertext data including an existing map.

Fig. 68 is a display example showing an example of hypertext data including an existing map.

Detailed ways

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 65. FIG.

Embodiment 1

1 to 6 are explanatory views of a hypertext display system according to Embodiment 1 of the present invention. Of these drawings, Fig. 1 is a block diagram showing the configuration of a hypertext display system according to Embodiment 1 of the present invention. In Fig. 1, symbol 101 is a hypertext display device that obtains and displays hypertext data containing map information according to the user's instructions, 102 is a hypertext providing device that provides hypertext data containing map information according to requirements, and 103 is a hypertext providing device that connects the above-mentioned The network between the display device 101 and the above-mentioned hypertext providing device 102, 104 is a simplified map code string generating device that provides the above-mentioned hypertext providing device 102 with map information expressed in a simplified map code string. The network 103 includes a gateway (GW) 105 that interconnects the hypertext display device 101 and the hypertext providing device 102 connected to the network 103 .

Next, in the hypertext display device having the above structure, the operation of the hypertext display device 101 acquiring and displaying hypertext data including map information from the hypertext providing device 102 will be described. First, the hypertext display device 101 performs a line connection to an access point of the network 103, and transfers it to a network capable of performing data communication with other hosts on the network in a well-known procedure such as PPP (Point to Point Protocol; point-to-point protocol). state. Next, once the user instructs the hypertext display device 101 to obtain hypertext data including map information on the hypertext provider device 102 , the hypertext display device 101 sends a data acquisition request to the hypertext provider device 102 through the network 103 . Once the hypertext providing device 102 receives the data acquisition request, it obtains the map information expressed in a simplified map code string from the simplified map code string generating device 104, and transmits a hypertext file containing the required map information to the hypertext display device 101 through the network 103. text data. The hypertext display device 101 generates display data to prompt the user according to the received hypertext data including map information.

Here, the structure and operation of the hypertext providing device 102 will be described again. Fig. 2 is a block diagram of the hypertext providing device of the present embodiment. In FIG. 2, 1301 is a communication device such as a LAN adapter (adapter) that provides a communication function. 1302 is a communication control unit for sending and receiving data through the network by means of the above-mentioned communication device. 1303 is a simplified map code string acquisition unit that acquires a simplified map code string from the simplified map code string generator. 1304 is a simplified map compression unit for compressing the simplified map code string. 1305 is a hypertext generating unit that generates hypertext data provided. 1306 is a hypertext transmission control unit that generates and delivers hypertext according to the acquisition request from the hypertext display device through the communication control unit 1302. Next, the operation of the hypertext providing device 102 having the above structure to transmit the hypertext including the map information expressed in a simplified map code string will be described. Once the hypertext transmission control unit 1306 receives the request from the hypertext display device 101 to obtain the hypertext containing map information through the communication control unit 1302, it obtains the information corresponding to Obtain the simplified map code string corresponding to the request, make the hypertext generation unit 1305 act, generate the hypertext containing the map information expressed by the simplified map code string corresponding to the acquisition requirement, and send the hypertext to the hypertext data display device through the communication control unit 1302. hypertext.

Here, the hypertext data including map information provided by the hypertext providing means will be described with reference to FIGS. 3 to 5. FIG. In FIG. 4, 401 is a simplified map code table of this embodiment. The row of 402 represents the situation that the codes of the digits on the column from 0×f040 (note: hexadecimal, expressed as 240 and 64 in decimal) correspond to the character patterns of each grid (cell). Here, 0×f040 to 0×f05f correspond to font graphics representing roads; 0×f060~0×f063 correspond to font graphics representing roads that are omitted; 0×f064 and 0×f065 correspond to font graphics representing bridges ; 0×f066~0×f06b correspond to the character pattern representing river; 0×f06c~0×f071 correspond to the character pattern representing railway; 0×f072 correspond to the character pattern representing blank; 0×f073~0×f083 correspond to Used to represent the font graphics of municipal government agencies. In FIG. 5, 501 denotes a simplified map provided in this embodiment. The simplified map 501 can be divided into character graphic areas represented by rectangles surrounded by dotted lines, and replaced with the codes of the character graphic corresponding to each rectangle, expressed in a simplified map code string. The map in Fig. 5 is expressed as a horizontal 10×longitudinal 11 code string, that is, an 11-row code string with 10 codes in each row. In FIG. 3, 301 is an example of hypertext data including map information in this embodiment. <MOBILEMAP> in the line 302 is a tag newly introduced for this embodiment, and indicates that it is map data. FORMAT=FONTMAP indicates that the content of the map is expressed in a simplified map code string. TYPE=DISPLAY indicates that the map is only used for display. Lines 303 to 304 represent a simplified map code string of the simplified map 501 . Here, in order to make the description intuitive, the decimal number starting with &## represents the code, but each code of the transmitted data is 2 bytes. In this embodiment, the simplified map code takes 2 bytes as a unit, so for example &#240&#241 represents a code of 0×f072. <BR> at the end of each line indicates an indicative break. </MOBILEMAP> on line 305 indicates the end of the map data.

The action of the hypertext display device will be described in detail below. Fig. 6 is a structural diagram of a hypertext display device according to an embodiment of the present invention. In FIG. 6 , 201 is an input device such as a ten-number key from 0 to 9 for providing an input operation to the user. 202 is an input control unit that receives instructions from the user through the input device 201 . 203 is an output device such as a liquid crystal display device that provides visual information to the user. 204 is an output control unit that provides information to the user through the output device 203 . 205 is a communication device such as a PHS that provides a communication function. 206 is a communication control unit for transmitting and receiving data through the network by means of the above-mentioned communication device. 207 is a storage device such as a ROM that can hold data for a long time. 208 is font data representing the shape of characters stored in the storage device 207 . 209 is the simplified map character data stored in the storage device 207 representing the shape of the simplified map components. 210 is a hypertext dialogue control unit that controls acquisition and display of hypertext data and distribution of user operation instructions. Moreover, the hypertext dialogue control unit 210 has an overlapping drawing unit 211 capable of overlapping characters and patterns to generate display data, a simplified map code string expansion unit 212 for expanding the compressed simplified map code string, and an equal-divided mapping operation for processing equal-divided mapping. unit 213, a marker mapping operation unit 214 that processes marker mapping, and an image processing unit 215 that performs image data display.

Next, the display operation for displaying hypertext including map information by the hypertext display device having the above-mentioned structure will be described. When the user uses the input device 201 to instruct to display a new hypertext with a link reference or the like, the input control unit 202 transmits the instruction to the hypertext dialogue control unit 210 . Assume here that this indication is the display of hypertext tp: //host1/page1, and host1 is the address of hypertext providing device 102, then hypertext dialogue control unit 210 is in external hypertext providing device 102 because of the reference of hypertext data Therefore, it instructs the communication control unit 206 to use the communication device 205 to communicate with the hypertext providing device 102 to obtain the hypertext data Page1. It is assumed here that Page1 is the hypertext data 301 explained above. Once the hypertext dialogue control unit 210 receives the data 301, it judges that it is map data according to the line 302, and uses the simplified map font data 209 when generating the display data based on the codes in the lines 303-304. Also, the process of determining the layout is the same as that of normal text data. The simplified map character data 209 contains the information of the simplified map code table 401 described above and the entity data of the character pattern. The hypertext dialogue control unit 210 instructs the output control unit 204 to display the display data generated using the simplified map font data 209 to display a screen on the output device 203 . Here, the simplified map shown in FIG. 5 is reproduced as display data.

Therefore, even if the image processing function is not used, it is possible to display a simplified map with sufficient expressive power only by the text processing function. Furthermore, since the code string is much smaller than the image data, the effect of shortening the communication time and saving the service fee can be obtained.

Also, in this embodiment, only vertical and horizontal character patterns are prepared for roads, railways, etc., but preparing oblique character patterns will improve expressiveness. Also, only a dozen or so font patterns are prepared as symbols, but adding symbols such as gas stations, convenience stores, fast food restaurants, campsites, department stores, etc., or preparing logos of various companies will provide more expressive power. Again, only the codes in the simplified map font data are used to express the simplified map, but even general Chinese character codes are mixed into the simplified map to add common characters, thereby using the font graphics of the font data 208, the display of the simplified map can be easily realized. Also, although not particularly limited, the hypertext generating unit of the hypertext providing device can be regarded as a hypertext editing program or an automatic generating program operated by an information provider on a PC or the like.

Also, although not particularly limited, the device for generating a simplified map code string can be regarded as a simplified map generation and editing program or an automatic generation program that an information provider operates on a PC or the like and has a simplified map drawing function and a simplified map code storage function. The implementation of the simplified map generation and editing program can be considered to use the front-end processor to input the simplified map code from the keyboard, use the mouse to select the components of the simplified map from the list and configure them, and finally convert them into simplified map code strings, or use a scanner, etc. The imported map image is used as a model, and the end points and intersections of roads, railways, etc. are pointed out with a mouse, etc., and the basic data of a simplified map are created, and a simplified map code string is generated at the same time.

According to this embodiment as described above, the system consists of a hypertext providing device that provides hypertext data to the user, a simplified map code string generating device that provides map information expressed in a simplified map code string to the hypertext providing device, and a system that utilizes the user's The operation obtains the hypertext data provided by the hypertext providing device through the network, and is composed of a hypertext display device that prompts the user, and is characterized in that the hypertext display device is composed of an input device that provides an input operation for the user, through the The input device receives an input control unit from the user, an output device that provides visual information to the user, an output control unit that prompts the user for information through the output device, a communication device that provides a communication function, and a communication device through the network by means of the communication device. A communication control unit for sending and receiving data, a storage device capable of long-term data storage, font data representing the shape of characters stored in the storage device, and simplified map font data representing the shape of a simplified map component stored in the storage device , and a hypertext dialogue control unit that controls the acquisition and display of hypertext data and the distribution of user operation instructions. A communication control unit, a simplified map code string acquisition unit that acquires a simplified map code string from the simplified map code string generation device, a hypertext generation unit that generates provided hypertext data, and according to the information received by the communication control unit The acquisition request from the hypertext display device is composed of a hypertext transmission control unit that generates and transmits hypertext, and the data expressing the map in the hypertext data provided by the hypertext providing device is a character code corresponding to the simplified map font data By string expression, an excellent hypertext display system capable of displaying hypertext data including map information using only a hypertext display function, shortening communication time, and reducing usage costs can be realized.

Implementation form 2

7 to 9 are explanatory views of a display device according to Embodiment 2 of the present invention. The structure of the hypertext display device of the present embodiment is the same as that of the first embodiment, as shown in FIG. 6 .

In this embodiment, hypertext data including map information provided by the hypertext providing means will be described with reference to FIGS. 7 and 8. FIG. 601 in FIG. 7 represents a simplified map provided in this embodiment. 602 indicates that the post office is arranged in the middle of the character pattern area shown by the left and right rectangles surrounded by dotted lines. In the first embodiment, in such a case, it is necessary to rearrange the post office in the character pattern area 603 on the left or the character pattern area 604 on the right for encoding. In this embodiment, a half-frame blank is used in this case, and it is arranged in the middle of the character pattern area. 701 in FIG. 8 indicates an example of hypertext data at this time. Before and after the code &#240&#120 representing the post office of 702 rows, respectively place a code &#32 representing a half-grid blank.

Next, the operation of the hypertext display device of this embodiment will be described. Once the hypertext dialogue control device 210 receives the hypertext data 701, it arranges a half-frame blank with half the width of the full-frame text, uses the simplified map font data 209 to compose the display data, and The instruction output control section 204 displays a screen on the output device 203 . Here, the simplified map shown in FIG. 7 is reproduced as display data.

Therefore, it is possible to arrange the character pattern in the middle of the left and right character pattern areas without expanding the normal hypertext data arrangement function.

In addition, in this embodiment, only half-frame characters are described as half-frame characters, but since ordinary half-frame characters such as American Standard Code for Information Interchange (ASCII) are also included in the simplified map code string, it is possible to easily Achieving a more expressive system. In addition, the simplified map font data for half grids, such as intersections with a half grid width, are included, so that a system with higher expressiveness can be easily realized.

As mentioned above, if this embodiment is adopted, the data representing the map in the hypertext data provided by the hypertext providing device is represented by a code string of a character code corresponding to the simplified map font data and a character code corresponding to the half-frame font data. This feature makes it possible to realize an excellent hypertext display system capable of representing a simplified map with high accuracy in horizontal arrangement.

Implementation form 3

10 and 11 are explanatory views of a hypertext display system according to Embodiment 3 of the present invention. The structure of the hypertext display device of this embodiment is the same as that of the first embodiment, as shown in Fig. 6 .

In this embodiment, hypertext data including map information provided by the hypertext providing device will be described with reference to FIGS. 9 and 10 . 801 in FIG. 9 indicates a simplified map provided in this embodiment. 802 indicates that the Chinese character "mountain" is located at a position overlapping with the simplified map font pattern of the intersection. 803 represents that the Chinese character "寺" is located at a position overlapping with the simplified map font pattern of the road. In the first embodiment, in such a case, only one of the characters or the road is left to be coded, and the other information is inevitably lost. In this embodiment, an instruction using superimposed drawing in this case can be expressed without losing information. In FIG. 10, 901 indicates an example of hypertext data at this time. In the 902 row, the code &#240&#74 representing the intersection is provided with the code &#08 and the Chinese character code "mountain" representing the backspace, and the code &#240&#64 representing the road is provided with the code representing the backspace &#08 and "Temple" of the Chinese character code.

Next, the operation of the hypertext display device in this embodiment will be described. Once the hypertext dialogue control unit 210 receives the hypertext data 901 , it activates the overlay drawing unit 211 , composes display data using the simplified map font data 209 and the font data 208 , and instructs the output control unit 204 to display a picture on the output device 203 . Here, the operation of the superimposed drawing unit 211 will be described using FIG. 11 . FIG. 11 is a flowchart of the operation of the overlay drawing unit 211 . At first, the display position is set at the head of the first line (step 1000), a code is cut out from the simplified map code string (step 1001), if it is a simplified map font code or a Chinese character code, the simplified map font data or font data are used Draw the corresponding character pattern on the display position (step 1002). If there is <BR>, the display position is moved to the head of the next line (step 1003). If it is Back Space Code (Back Space Code), the display position is returned to before 1 word (step 1004). Process to the end of the brief map code string to end the action. As a result, the character pattern corresponding to the code immediately after the backspace code is overlapped and drawn on the character pattern corresponding to the code immediately before the backspace code.

Thus, from the hypertext data 901, the display data 801 in which the simplified map character figures representing roads and the Chinese character form figures are superimposed 801 is generated.

Also, in this embodiment, only the example of superimposing the Chinese character pattern on the simple map pattern is shown, but it may also be the overlapping of the simple map pattern and the simple map pattern or the overlapping of the Chinese character pattern and the Chinese character pattern. Also, although only an example of double overlap is shown, triple or more overlap is also possible. Also, if there are only a small number of common figures constituting the simple map character figures as the fonts, and the simple map fonts are formed by overlapping, then the amount of data fixed on the hypertext display device can be reduced. Also, although an example of inserting backspaces one by one is shown, backspaces may be inserted continuously. In addition, although only an example of an instruction for overlapping drawing using a backspace code is shown, it is also possible to overlap a plurality of screens by determining a code and a label indicating that the entire screen is reversed, or to overlap a specific font by specifying a row and column position. can be easily achieved. In addition, a system with higher expressiveness can be easily realized by combining with the second embodiment.

Adopting this embodiment as described above, it is characterized in that the hypertext dialogue control unit uses the overlapping drawing unit to express the hypertext data provided by the hypertext providing device with the character code string corresponding to the simplified map font data including the overlapping instruction. Therefore, an excellent hypertext display system capable of representing a simplified map with a huge amount of information exceeding the number of simple map fonts that can be arranged on the screen can be realized. In addition, only the constituent elements of the simplified map and font figures as the fonts can reduce the amount of data permanently held on the hypertext display device.

Embodiment 4

12 and 13 are explanatory views of a hypertext display system according to Embodiment 4 of the present invention. The structure of the hypertext display device of the present embodiment is the same as that of the first embodiment, as shown in FIG. 6 .

Next, the hypertext data including map information provided by the hypertext providing device in this embodiment will be described with reference to Fig. 12 and Fig. 13 . In Fig. 12, 1101 denotes a simplified map provided in this embodiment. 1102 indicates that the post office is arranged in the middle of the font area shown by the upper and lower rectangles surrounded by dotted lines. In the first embodiment, in such a case, it is necessary to rearrange the post office in the upper font area 1103 or the lower font area 1104 for encoding. Again, comparing the part of 1105 with that of Fig. 9, the gap between the railway and the road is filled, and the left and right walking roads are added in the middle of the upper and lower font areas. Such a map cannot be expressed in Embodiment 1. In this embodiment, in these cases, it can be expressed by changing the line by 1/2. 1201 in FIG. 13 indicates an example of hypertext data at this time. At the end of the 1202 line, place the sign <HALFBR> representing 1/2 of the line change. Place the post office code on line 1203 followed by 2 blanks and <HALFBR> at the end. Also place <HALFBR> at the end of line 1204. In line 1205, a code indicating the same road as in the above line is placed, and <HALFBR> is placed at the end. In line 1206, a code representing a railway etc. is placed, and <HALFBR> is placed at the end. In line 1207, codes representing intersections forming roads in the left and right directions are placed, and <HALFBR> is placed at the end.

Next, the operation of the hypertext display device of this embodiment will be described. Once the hypertext dialogue control unit 210 receives the hypertext data 1201, it operates the overlapping drawing unit 211 as in the third embodiment, uses the simplified map font data 209 and the font data 208 to compose display data, and instructs the output control unit 204 to display the data on the output device. 203 displays a screen. Here, when the overlapping drawing unit 211 sets the display position of the vertical direction of the next line in the action step 1003 of FIG. 1/2 line is added to the display position of the previous line. As a result, the character pattern corresponding to the line immediately after <HALFBR> is half-drawn to overlap the character pattern corresponding to the previous line.

Therefore, the font graphics can be overlapped and drawn in the middle of the upper and lower font regions.

Also, in the present embodiment, only the example of putting the 1/2 line break mark at the end of the line is shown, but the combination of the usual line break code and the 1/2 ascending code at the beginning of the line can also be easily realized with the same effect system. Also, although only an example of adjustment in line units is shown, a system having the same effect can be easily realized by inserting a code for adjusting the vertical position for each character code. Also, although only an example of performing adjustments in units of 1/2 lines is shown, adjustments in units of 1/3 lines, etc., adjustments such as point designation, etc. greatly improve the adjustment function, and can easily achieve high performance. force system.

As mentioned above, if the present embodiment is adopted, the hypertext display device is characterized in that the overlay drawing unit adjusts the width of line breaks in the preparation of the display data, and is also used for expressing map data in the hypertext data provided by the hypertext providing device. The character code string representation corresponding to the simplified map font data including line break width indication can realize an excellent hypertext display system capable of displaying a simplified map with high vertical arrangement accuracy.

Embodiment 5

Fig. 14 is a diagram illustrating a hypertext display system according to a fifth embodiment of the present invention. The structure of the hypertext display device of this embodiment is shown in Fig. 6 as in the first embodiment. The configuration of the hypertext providing device of this embodiment is shown in Fig. 2 as in the first embodiment.

Next, the operation of the hypertext providing device 102 of this embodiment to transmit hypertext including map information expressed by a simplified map code string will be described. Once the hypertext transmission control unit 1306 receives a request to obtain a hypertext containing map information from the hypertext display device 101 through the communication control unit 1302, it obtains The simple map code string corresponding to the acquisition requirement makes the hypertext generating unit 1305 work, generates a hypertext containing map information expressed by the compressed simplified map code string corresponding to the acquisition requirement, and displays the hypertext data through the communication control unit 1302 The device transmits the hypertext.

Here, hypertext data including map information represented by compressed simplified map code strings provided by the hypertext providing device in this embodiment will be described with reference to FIG. 14 . In this embodiment, the compression method uses the following two methods in combination, that is, a method of representing a 2-byte code string with a 1-byte code string offset only to a 2-byte reference code (herein referred to as "offset expression") "), and the method (referred to as "run length expression" herein) of 1 byte representing the number and the code expression to the continuous identical code. In FIG. 14, 1401 is an example of hypertext data including map information expressing the simplified map shown in 301 in FIG. 3 in a compressed simplified map code string. "CODEBASE=0xf040" in line 1402 means that a code string originally in units of 2 bytes is expressed in a code string in units of 1 byte indicating an offset from 0xf040. "COMPRESS=RLN" means that the code string is expressed using the run length. Here, 1403 is a part in which the code string of the simplified map in units of 2 bytes in FIG. 3 is expressed in code strings in units of 1 byte using the offset expression method. For example, &#240&#114 (0×f072) is expressed with &#50 (0×32), and &#240&#65 (0×f041) is expressed with &#1 (0×1). If the expression of the run length is used in 1403, it becomes the last code string obtained in 1402. Here, line 1404 is compressed into &#131&#50 in line 1406 because there are 3 connected &#50, and line 1405 is compressed into &#135&# in line 1407 because there are 7 connected &#44 44. In this embodiment, the basis for distinguishing whether to express the entity of the code or the number is to set the most significant bit to 1 when expressing the number. The simplified map code string expressing the simplified map shown in FIG. 3 is 231 bytes in the first embodiment, but is compressed to 115 bytes in the present embodiment.

Next, the operation of the hypertext display device in this embodiment will be described. Once the hypertext dialogue control unit 210 receives the hypertext data 1401, it judges that it is the map data compressed according to line 1402, so that the simple map code string expansion unit 212 is activated to obtain a simple map code string without compression, and will use this code as the According to the display data generated by using the simplified map character data 209 when compiling the display data, the output control unit 204 is instructed to display the screen on the output device 203 . Here, the simplified map shown in FIG. 3 is reproduced as display data.

Therefore, the transmission of the same simplified map information can be realized with less traffic than in the first embodiment.

In this embodiment, only the offset expression and the run length expression are described as compression methods, but other compression methods may also be used. Also, although the present embodiment shows a method that can be used when there are less than 127 types of fonts, it is also possible to use control bits to avoid offsets or introduce codes for switching multiple references when there are more than 128 types. and other methods to achieve compression. Also, in this embodiment, although only an example of a data string consisting of codes corresponding to simplified map characters is shown, even for a data string including control codes such as backspace and 1/2 line breaks, and Chinese character codes, etc. , implementing the same countermeasures as above can also achieve compression.

As mentioned above, if this embodiment is adopted, it is characterized in that in the hypertext display device, the hypertext dialog control unit has a simplified map code string expansion unit that expands the compressed simplified map code string, and the hypertext providing device has a simplified map code string expansion unit. A simple map code string compression unit that compresses map code strings. Therefore, by using these features, it is possible to realize an excellent hypertext display system that can reduce communication data volume without reducing information volume, and can reduce communication time and usage fees.

Embodiment 6

15 to 20 are explanatory views of a hypertext display system according to Embodiment 6 of the present invention. The structure of the hypertext display device 101 of this embodiment is the same as that of the first embodiment, as shown in FIG. 6 . The structure of the hypertext providing device 102 of the present embodiment is the same as that of the first embodiment, as shown in FIG. 2 .

First, in Figs. 17 to 19, 1701 to 1703 indicate the appearance of the hypertext display device according to this embodiment. 1704 is an operation key of the input device 201 . 1705 is a liquid crystal panel of the display device 203 . 1706 is a cable for connecting a built-in modem as a communication device and a telephone line.

Next, the operation of the hypertext providing means 102 in this embodiment to transmit hypertext data including map information with link information added to the equally divided area will be described. Once the hypertext transmission control unit 1306 receives a request from the hypertext display device 101 to obtain a hypertext containing map information through the communication control unit 1302, it will make the hypertext generation unit 1305 act to generate a load sharing file corresponding to the request. The hypertext data of the map information of the area link information is transmitted to the hypertext data display device through the communication control unit 1302 .

Here, the hypertext data provided by the hypertext providing means in this embodiment including map information to which link information is added to the equally divided area will be described with reference to FIG. 15 . In FIG. 15 , 1501 and 1504 are examples of hypertext data including map information to which link information to an evenly divided area is added. "FORMAT=IMAGEMAP" in lines 1502 and 1505 indicates "the content of the map is expressed by image data". "SRC=map0.gif" means "the image data representing the content of the map has a reference name of map0.gif". "TYPE=ZOOMUP" means "add link information to the equally divided area on this map". "ROWS=3, COLS=3" means that the number of equal parts is 3 in the vertical direction and 3 in the left and right directions. The following <LINK> means that the link information corresponding to the evenly divided area is specified by the ROW attribute. For a certain numbered area of the divided area, a certain numbered area of the left and right divided areas is specified by the COL attribute, and a link address is specified by the HREF attribute. For example, line 1503 indicates that since ROW=1 and COL=2, the area corresponding to this link information is No. 1 of the upper and lower division area and No. 2 of the left and right division area. Since HREF = a12.map, the link address The reference name is a12.map.

Next, the operation of receiving and displaying hypertext data including map information to which link information of the equally divided area is received by the hypertext display device of the present embodiment will be described. Once the hypertext dialogue control unit 210 receives the hypertext data 1501, it is judged according to the line 1502 that it is the map information that adds link information to the equally divided area of 3×3, and the content is the image data that can be referred to by map0.gif, And start the equal share mapping operation unit 213 to generate the keyboard operation link correspondence table, obtain the image data that can be referred to by map0.gif through the communication control unit 206, make the image processing unit 215 operate to generate display data, and draw the equal share of 3×3 with a dotted line After correcting the display data for the boundary of the area, instruct the output control unit 204 to display the screen on the output device 203 . Assuming that map0.gif is the map data shown at 1601 in FIG. 16, the display screen is shown at 1701 in FIG. 17, which is a map showing the boundary of the equally divided area with dotted lines. Further, the keyboard operation link correspondence table will be described below with reference to FIG. 20 . 1801 is an example of a keyboard operation link correspondence table generated based on hypertext 1501 . The method used here is to make the instruction of the vertical division area and the indication of the left and right division area correspond to the input of the first key and the input of the second key, respectively. 1801 and 1803 are items corresponding to <LINK> of 1503, and indicate that a link of the reference name a12.map is added when the first key input is [1] and the second key input is [2].

Next, when the hypertext display device of this embodiment is displaying hypertext data including map information to which link information is added to the equally divided area, the operation of obtaining the hypertext data of the link address by the user's keyboard input will be described. Once the hypertext dialogue control unit 210 obtains the user's keyboard input event through the input control unit 202, it instructs the evenly divided mapping operation unit 213 to obtain the reference name of the link address from the keyboard operation link correspondence table, and requests to obtain and link information through the communication control unit 206. Corresponding hypertext data. Here, assuming that the first keyboard input is [1] and the second keyboard input is [2], as shown in 1803, an acquisition request is made using a12.map as a reference name.

Next, assuming that the hypertext data corresponding to a12.map is the data shown in 1504, then the hypertext dialog control unit observes row 1505 the same as when 1501 receives, and generates a keyboard operation link correspondence table again to obtain mapa12.gif, Generate display data and display it on the screen. Here, assuming that mapa12.gif is as shown in 1602 in FIG. 16 , the display screen is a map showing the boundary of the equally divided area with dotted lines as shown in 1702 in FIG. 18 . Again, compare 1504 to regenerate the keyboard operation link correspondence table as shown in 1802, for example <LINK> of ROW=2, COL=3, HREF=b23. ], when the second key input is [3], it corresponds to the case of adding a link referring to the name b23.map. Next, when 1702 is displayed, if there is a key input by the user whose first key input is [2] and the second key input is [3], an acquisition request is made using b23.map as a reference name.

Finally, assuming that the hypertext data corresponding to b23.map is the data shown in 1507, the hypertext dialog control unit observes line 1508, and since it is only map data for display, it obtains mapb23.gif, and generates display data for screen display . Here, assuming that mapb23.gif is as shown in 1603 in FIG. 16 , as shown in 1703 in FIG. 19 , the display screen is a map that does not show the boundaries of the equally divided regions.

Therefore, the data designated by the link information of the equally divided area can be acquired only by using a keyboard operation.

In addition, in this embodiment, an example in which map data is expressed using image data is described, but the same effect can be obtained by using the expression using a simplified map code string as shown in the first embodiment. In addition, in this embodiment, an example of specifying divided regions by two keyboard operations is used, but the same effect can be obtained by assigning serial numbers to divided regions and specifying divided regions by one operation. In addition, although only an example of drawing dotted lines on the borders of the divided areas is given, if the number of the key corresponding to the area is drawn in the center of each area, the ease of recognition related to the user operation will be improved. Conversely, if numerals or the like are drawn outside the map area without drawing dotted lines or the like in the map area, the convenience of recognizing the map portion improves. Also, although an example of the reference name of the hypertext data to be acquired as the link information is given, it can be applied more flexibly by designating a script to be executed or the like. Also, although only an example of a form in which the client can click on the map in which the link information is included in the hypertext data is given, even if the server side sends the ROW and COL values as arguments to the server by keyboard operation, the map can be clicked. It is also easy to form a system that can obtain the same effect even in the form of a click map. In addition, although an example of a method in which the area and the key input are directly associated is given, even if the area surrounding the selection object is highlighted with a thick line, the selection object is changed with the arrow keys, etc., and the selection is made with the execution key, etc. , and it is also easy to implement systems that do not operate well but do not require a pointing device.

As described above, according to this embodiment, it is possible to realize a hypertext display in which a hypertext providing device that provides hypertext data to a user obtains the hypertext data provided by the hypertext providing device through a network through a user operation and presents it to the user. A hypertext display system composed of devices. In this hypertext display system, the hypertext providing means is composed of a communication device that provides a communication function, a communication control unit that transmits and receives data through a network by means of the communication device, and a hypertext generator that generates provided hypertext data. unit, and a hypertext transmission control unit that generates and transmits hypertext according to the acquisition request received from the hypertext display device through the communication control unit. In addition, the hypertext display device is composed of an input device that provides input operations to the user, an input control unit that receives instructions from the user through the input device, an output device that provides visual information to the user, and prompts the user through the output device. An information output control unit, a communication device providing a communication function, a communication control unit for transmitting and receiving data through a network by means of the communication device, and a hypertext dialog control unit for controlling the acquisition and display of hypertext data and the distribution of user operation instructions constitute. And it is characterized in that, in the hypertext providing device, the hypertext generating unit provides hypertext data including map information attached to the link information of the equally divided area, and in the hypertext display device, the hypertext dialogue control unit There is an equal-division map operation unit for selection of an equal-divided area for mapping the hypertext data and a keyboard operation, so by using this feature, even without a pointing device, it is possible to realize the function of specifying the area on the map. A hypertext display system with excellent functionality for link selection operations.

Implementation form 7

21 to 23 are explanatory views of a hypertext display device according to Embodiment 7 of the present invention. The configurations of the hypertext display device and the hypertext providing device of this embodiment are the same as those of the sixth embodiment.

In FIG. 21, 1901 and 1913 indicate the outline of the hypertext display device of this embodiment. 1914 is an operation key of the input device 201 . 1915 is a liquid crystal panel of the display device 203 . 1916 is an antenna which is a part of the PHS module of the communication device.

In this embodiment, the hypertext data provided by the hypertext providing means including map information with link information to the equally divided area is the same as that in the sixth embodiment, as shown in FIG. 15 .

Next, the operation of receiving and displaying hypertext data including map information to which link information of the equally divided area is received by the hypertext display device of the present embodiment will be described. Once the hypertext dialogue control unit 210 receives the hypertext data 1504, it judges that the map information with the link information for the 3×3 equally divided area is added in line 1505, and that it is the image data whose content can refer to mapa12.gif, and makes the evenly divided The mapping operation unit 213 operates to generate a keyboard operation link correspondence table, obtains the data that can be seen in mapa12.gif through the communication control unit 206, and at the same time operates the image processing unit 215 to generate display data, and draws the 3×3 equally divided area with a dotted line Border, after correcting the display data, instructs the output control unit 204 to display the screen on the output device 203 . Here, the keyboard operation link correspondence table generated by the equalization mapping operation unit in this embodiment will be described with reference to FIG. 22 . 2001 is an example of a keyboard operation link correspondence table generated based on hypertext 1504 . Here, one key input is directly associated with the link information. For example, the row of 2002 indicates a link corresponding to the additional reference name b23.map in the key input [6]. Here, the operation of the split mapping operation unit 213 to generate the key operation link correspondence table 2001 according to the hypertext data 1504 will be described. First, each <LINK> is extracted from the hypertext data 1504, and an operation key is determined by referring to the key arrangement table based on the values of ROW and COL. FIG. 23 shows an example of the key arrangement table of this embodiment. Since the spatial arrangement of keys is shown at 1917, the key arrangement table is shown at 2101. <LINK> in 1506 has ROW=2 and COL=3, so according to 2102 the operation key is [6], row 2002 of the key operation link corresponding table 2001 is generated. According to the key operation link correspondence table 2001, the equally divided areas 1902-1910 of the hypertext display device 1901 correspond to the keys [1]-[9] respectively, and the space configuration of the display screen 1912 is the same as that of the keyboard operation area 1911.

Next, an operation of obtaining hypertext data of a link address by user input when the hypertext display device of this embodiment displays hypertext data including map information to which link information is added to an evenly divided area will be described. Once the hypertext dialogue control unit 210 receives the user's key input event through the input control unit 202, it instructs the evenly divided mapping operation unit 213 to obtain the reference name of the link address from the keyboard operation link correspondence table, and requires the communication control unit 206 to obtain and link The hypertext data corresponding to the information. Here, assuming that the key input is [6], an acquisition request is made using b23.map as a reference name as shown in 2002. Assuming that the hypertext data corresponding to b23.map is the data displayed at 1507, then observe line 1508. Since it is only map data for display, the hypertext dialogue control unit obtains mapb23.gif to generate display data for screen display. Here, it is assumed that mapb23.gif is an enlarged view of a part of 1602 as shown in 1603 in FIG. 16 , and the display screen is shown as 1913 in FIG. 21 , which is a map that does not display the boundary of the equally divided area.

Therefore, since the arrangement of the regions on the map is the same as the spatial arrangement of the operation keys, it is possible to obtain the data designated by the link information of the equally divided region by intuitive keyboard operation.

Also, in this embodiment, although the example in which only numeric keys appear in the keyboard operation link correspondence table is given, it may also be that the key configuration table of the hypertext display device in FIG. 21 is shown in 2103, and the keyboard operation link correspondence Table as shown in 2003, using keys other than numeric keys. In addition, although the method in which the values of ROW and COL are fixedly associated with the keys in the key arrangement table is described, it is also possible to change the corresponding keys according to the number of ROWS and COLS.

As mentioned above, if this embodiment is adopted, when the equal division mapping operation unit maps the equal division area and the keyboard operation in the hypertext display device, the equal division area is made to correspond to the spatial configuration of the keyboard. Using this feature, it is possible to realize An excellent hypertext display system that enables selection of equally divided areas with intuitive keyboard operations.

Embodiment 8

The configurations of the hypertext display device and the hypertext providing device of this embodiment are the same as those of the sixth embodiment.

This embodiment is characterized in that the link address of the hypertext data including map information to which link information is added to the evenly divided area provided by the hypertext providing means is hypertext data which also includes map information to which link information to the evenly divided area is added. , the latter map content is an enlarged view of the equally divided area of the former map content. Fig. 16 described in Embodiment 6 shows an example of such a series of hypertexts. As mentioned above, the screen of 1702 of FIG. 18 can be displayed according to 1701 of FIG. 17 through keyboard operation, and the screen of 1703 of FIG. 19 can be displayed according to 1702 of FIG. 18 .

Therefore, image enlargement of the map can be realized only by keyboard operation.

In addition, in this embodiment, an example expressed in image data is used as map data, but the same effect can be obtained also by using the simplified map code string expression shown in Embodiment 1.

As described above, if the present embodiment is adopted, the link address of the hypertext data provided by the hypertext providing device including the map information to which the link information to the evenly divided area is added includes the map information to which the link information to the evenly divided area is added. In the hypertext data, the map content of the latter is an enlarged image of an evenly divided area of the map content of the former, and a hypertext display system that can easily zoom in on images without a pointing device can be realized.

Embodiment 9

Fig. 24 is an explanatory diagram of a hypertext display system according to Embodiment 9 of the present invention. The configurations of the hypertext display device and the hypertext providing device of this embodiment are the same as those of the sixth embodiment.

This embodiment is characterized in that the link address of the hypertext data including map information to which link information is added to the evenly divided area provided by the hypertext providing means is hypertext data which also includes map information to which link information to the evenly divided area is added. , the latter map content is an enlarged map of an area that is larger than the former by a certain ratio, including the equally divided area of the former map content in the center. Fig. 24 shows an example of such a series of hypertexts in this embodiment. The map content 2202 of the map information linked by the evenly divided area 2204 of 2201 is an enlarged view of an area 2205 with a ratio of 11/9 larger than the evenly divided area 2204, and the map content 2203 of the map information linked by the evenly divided area 2206 of 2202 It is an enlarged view of a region 2207 at a ratio of 11/9 larger than the equally divided region 2206 . In the eighth embodiment, since the borders of the adjacent equally divided areas coincide with the boundaries of the enlarged map content, it is impossible to zoom in on the portion located at the border of the equally divided areas like "station A" near the center. In this embodiment, the boundaries of the adjacent equally divided areas are different from the boundaries of the enlarged map content. Therefore, as shown in 2203, the zoom-in operation is performed so that the part located at the boundary of the equally divided areas such as "station A" is located near the center. It is possible.

In addition, in the present embodiment, an example in which an area of a scale larger than 11/9 is used as the area of the enlarged view is described, but the same effect can be obtained by using other scales.

As described above, if the present embodiment is adopted, the link address of the hypertext data provided by the hypertext providing device, which includes map information to which link information is added to the evenly divided area, further includes map information to which link information to the evenly divided area is added. Hypertext data, the map content of the latter is an enlarged map of an area larger than the former by a certain percentage of the evenly divided area containing the map content of the former in the center, which can realize the image of the map without a pointing device An excellent hypertext display system that can adjust the center of the map according to the user's intention during the zoom-in operation.

Embodiment 10

Next, a tenth embodiment of the present invention will be described. 25 to 36 are explanatory views of a hypertext display device according to Embodiment 10 of the present invention. The structure of the hypertext display device of the present embodiment is the same as that of the first embodiment, as shown in FIG. 6 . The structure of the hypertext providing device of this embodiment is the same as that of the first embodiment as shown in FIG. 2 . Next, the configuration of the simplified map code string generator of the present embodiment will be described with reference to FIG. 25. FIG.

In FIG. 25 , 2601 is a peripheral simplified map generating means for generating a peripheral simplified map. 2602 is a route search unit for searching a route from a departure point to a destination. 2603 is a simplified route map generation unit that converts the route search result into a simplified rough map. 2604 is a character conversion unit for converting the generated simplified map into a simplified map code string. 2605 is a map storage unit that stores map data in advance. 2606 is an interface unit.

Next, the operation of the simplified map code string generator having the above-mentioned structure will be described with reference to the drawings.

Fig. 26 is a flowchart of a simple route map generation unit. Fig. 27 is an example of output from the route search unit. When the attribute is "0" in FIG. 27 , each row indicates the coordinates of the passing node and the angle of the passing node, and when the attribute is not "0", it indicates the position coordinates of the landmarks corresponding to FIG. 28 . Fig. 28 is a comparison table of landmark IDs and landmark names. FIG. 29 shows a digital map with route information added and the results of route search performed on the map. FIG. 30 is a route diagram obtained by normalizing the angles of intersections based on the route search result data shown in FIG. 28 outputted from the route search using the route map shown in FIG. 29 . Fig. 31 is a path diagram with grids added to normalize distances. Fig. 32 is the result of angle normalization processing on the route search result data. Fig. 33 is a diagram in which diagrams in a grid are associated with fonts so that Fig. 31 can be converted into a simplified map code string. There are 2 kinds of data of the font type, and the font is synthesized by the font synthesis unit. Fig. 34 is a simplified map code table used in this embodiment. FIG. 35 is a simplified map code string generated based on the data in FIG. 33 . Here, each code is expressed in hexadecimal only for the offset from 0xf000, and the backspace code 0x08 is used for the control of overlapping drawing. The table shown in FIG. 36 is a part of an example of a table showing correspondences between intersection points and the simplified map character patterns in FIG. 34 .

Next, the simplified route map generating section 2603 will be described with reference to FIGS. 26 to 35 and the table in FIG. 36 . When the simple route map generation unit is activated (step 2700), it acquires the data in FIG. 27 as a route search result (step 2701). According to the acquired data in FIG. 27 , the data whose attribute is 0 is normalized in units of 45 degrees (step 2702 ). After the angle is normalized, it becomes the path diagram shown in FIG. 30 . Figure 32 is the data after angle normalization. To mesh in Figure 32, move to move the intersection or corner to the center of the mesh. Places that are not intersections are also moved so that the side points of the road are at the center of the grid (quantization of distance) (step 2703). In FIG. 30 , according to the intersection point of the grid boundary and the path in each grid, it is determined which boundary it intersects with, and then refer to Table 1 to identify the corresponding font. For example, if it intersects with the grid at the left and right borders and there is no node in the grid, then it is identified as a straight line font 0×f04c in the left and right directions; Identified as the composition of font 0×f040 and 0×f041, if it intersects on the top and right of the grid, then it is identified as the synthesis of font 0×f043 and 0×f042 (step 2704). The fonts corresponding to the landmarks are arranged near the link lines corresponding to the landmarks. For example, the landmark 3101 is arranged as a font 0×f057 near the middle position of the intersection of the 6th line and the 8th line in FIG. 27 , that is, below the position of 3201 (step 2705 ). According to the result of identifying the characters in Figure 33, blank codes etc. are inserted, and a simplified map code string 3601 is output (step 2706). Therefore, it is possible to dynamically generate a simplified map code string expressing a route map corresponding to the user's request.

As described above, according to the present embodiment, the simplified map code string generation device has the nodes of the route arranged in the order of passage, the angle of the passing node, the number of link lines connecting the nodes, and the number of link lines to be connected from the route search unit. The angle of the angle, the type of landmark along the route, and the ID data of the link line adjacent to the landmark, the simple route map data generation unit generates a simple route map based on the acquired data and map data, and converts the generated simple route map into a simplified The font conversion unit of the map code string can thus utilize the above-mentioned features to obtain coordinate data from the starting point to each intersection point, the angle passing through each intersection point, the width of each link line, and the landmarks connected by each link line from the route search unit. Attributes, as well as the coordinates of the landmarks, according to the data, the angle of each intersection and the distance of each link line are normalized to generate route guidance data, and the map fonts corresponding to the shapes of each node are combined according to the route guidance data, so as to Since the guide map is displayed, an excellent hypertext display system that can automatically generate a route guide map that is easy to see even on a portable terminal and has a small amount of data communication can be realized.

Embodiment 11

Next, Embodiment 11 of the present invention will be described. 37 to 53 are explanatory views of a hypertext display system according to Embodiment 11 of the present invention. The structure of the hypertext display device of the present embodiment is the same as that of the first embodiment, and is shown in FIG. 6 . The structure of the hypertext providing device of the present embodiment is the same as that of the first embodiment, and is shown in FIG. 2 . The structure of the simplified map code string generator of this embodiment is the same as that of the tenth embodiment, and is shown in Fig. 25 .

Next, the operation of the simplified map code string generator of this embodiment will be described with reference to the drawings. Fig. 37 is a flowchart of a peripheral simplified map generating unit that generates a simplified map code string for surrounding directions. Fig. 38 shows the original map data. FIGS. 39 to 45 are enlarged views of the designated area when the range is designated in the original map for generating the simplified peripheral map as shown in FIG. 33 . In FIG. 39 , 3901 is a diagram cut out to a scale capable of displaying the target map data. 3902 in FIG. 40 is a graph after font conversion is performed on the intersection point of 3901 above. 3903 in FIG. 41 is a graph in which nodes connected to intersections are removed. 3904 in FIG. 42 is a diagram for displaying a partial texture that can be deleted from the display grid. 3905 in FIG. 43 is a diagram in which the connection relationship of each intersection point is restored on a straight line after the deletable part is deleted. 3906 in FIG. 44 is a diagram in which connected straight lines assign corresponding glyphs according to intersection points with grid boundaries. FIG. 45 is an enlarged view of part A composed of nine grid parts centered on one intersection "i" in FIG. 40 . FIG. 46 is a diagram in which the intersection "i" is moved toward the center of the grid in FIG. 45 . At this time, the intersection point of the link line connected at the intersection point and the outer grid boundary is fixed. FIG. 47 is a diagram for converting a grid including the intersection point "i" into corresponding characters in the simplified map code table of FIG. 34, focusing on the position of the intersection of the grid and the link line. Fig. 48 is a diagram of transforming adjacent grids into corresponding glyphs in the same way. Fig. 49 is an enlarged view of part B in Fig. 39 where intersection points a, b, c are adjacent to each other. Fig. 50 is a diagram in which each intersection point is moved to the center of the grid. Fig. 51 is a diagram of angle quantization of each intersection point. Fig. 52 is a diagram of transforming the shape of the link lines of adjacent grids into corresponding glyphs. Fig. 53 is output map data.

Next, the surrounding simplified map generating means will be described with reference to FIGS. 37 to 53 . Once the surrounding simplified map generating means is started (step 3700), when the region D is specified, the region D is cut out from the entire map of FIG. 38 (step 3701). Rotation is performed so that road α is horizontal (step 3702), and finer grids are added so that two or more link lines cannot exist in one grid (3901, step 3703 in FIG. 39). Move the intersection "i" in Fig. 45 to the center of the grid. At this time, as shown in FIG. 46, the intersection points p, q, r, and s of the link line and the outer grid are fixed, and the intersection points are moved (step 3704). Angle normalization processing is performed in units of 45 degrees for the link lines connected at the intersection point "i" (FIG. 47, step 3705). Refer to Table 1 for the shape of the link line of the grid adjacent to the intersection to deform it into a font corresponding to the shape of the intersection (FIG. 48, step 3706). Add an end mark to the intersection "i", and judge whether the processing of all intersections on the target map is completed, if not, return to step 3704, and if completed, execute step 3708. In the embodiment, since there are intersection points a, b, and c, it returns to step 3704 (step 3710). Move the intersection points a, b, and c in Fig. 49 to the centers of the respective grids. At this time, when there is an intersection point in the adjacent eight meshes, the connected link lines are moved. In this case ab, bc, ca (step 3704). In FIG. 50, angle normalization processing is performed on the intersection points a, b, and c in units of 45 degrees (step 3705).

In FIG. 51 , referring to the table in FIG. 36 , the shapes of the link lines of the grids adjacent to the intersection other than the intersection are deformed corresponding to the intersection shape glyph ( FIG. 52 , step 3706 ). If there is no unprocessed intersection (step 3707), the connection relationship ア-ア, イ-イ, ウ-ウ of each intersection is stored (3902 of Figure 40), and the road link line connecting the intersection is removed (3903, step 3708 of FIG. 46). The grid is regarded as a matrix, and each row and each column is not added to all intersection areas (the 5×5 matrix centered on the intersection) and the landmark area (the meshed part of 3904 in Figure 42), then the row is removed or column (3904, step 3709 in FIG. 42). Restore the connection relationship of the intersections and connect them with a straight line (3905, step 3710 in FIG. 43). Allocate corresponding fonts according to the intersection points of the connected straight lines and grid boundaries (step 3711). When the areas of the landmarks and the linear fonts overlap, the areas of the landmarks are staggered. Sometimes fonts are synthesized according to circumstances (step 3712). As a result, the map data of 3906 in FIG. 44 is obtained. Based on the data in the same format as in Fig. 33, blanks etc. are inserted and a simplified map code string is output (step 3713).

Therefore, it is possible to dynamically generate an easy-to-see simplified map code string expressing a surrounding map corresponding to the user's request. Also, as shown in FIG. 53, the processing result when there is no landmark at 3901 in FIG. 39 forms a map code string 3602.

In addition, in this embodiment, the width of the road is not considered when outputting the surrounding simplified map generation unit, but by increasing the types of fonts representing roads and considering the width of the road when outputting, it is possible to easily realize the different simplified representations of road widths. A device for generating map code strings.

As described above, according to the present embodiment, it is characterized in that the simplified map code string generation device includes: in the map data that can distinguish the main road from other roads, once the displayed position and display range are input, it is Map data for the difference between arterial roads and other roads A simplified map generation unit that deforms the area surrounded by arterial roads while maintaining the coordinate positions and relative positional relationships between roads generated by deforming the arterial roads, And the simplified map that will generate is transformed into the font transformation unit of simplified map code string, thus utilize above-mentioned feature, once input coordinate or the information of landmark and display area, at first make the road network that is only constituted by main road in display area deform, then move The coordinates of each node and landmark in the area surrounded by the main road make the relative position relationship of the roads in the area surrounded by the main road not be destroyed due to the deformation of the main road, and use the angle of the road network in the moved area The method of normalizing the sum and distance makes it deformed to generate a simplified map of the surrounding map. With this, it is possible to generate a simplified map even in a relatively wide area where it is difficult to create a simplified map or when the direction of road link lines is irregular. , and can generate a simplified map code string based on the simplified map made, so it is possible to realize an excellent hypertext display device that can automatically generate a surrounding guide map that can be seen even on a portable terminal and has a small amount of data communication.

Embodiment 12

Embodiment 12 will be described below. 54 to 60 are explanatory views of a hypertext display system according to Embodiment 12 of the present invention. The structure of the hypertext display device of the present embodiment is the same as that of the first embodiment, and is shown in FIG. 6 . The structure of the hypertext providing device of the present embodiment is the same as that of the first embodiment, and is shown in FIG. 2 . The structure of the simplified map code string generator of this embodiment is the same as that of the tenth embodiment, and is shown in Fig. 29 .

Here, the method shown in Embodiment 11 above is to use one line to represent the road, but in printed publications, the road on the map is usually represented by two lines, so the two-line representation method is easier. accept. However, in the way of representing the road with two lines, to represent the road obliquely passing through the grid, appropriate fonts must be used in multiple adjacent grids, otherwise the road will be broken into sections. Fig. 54 and Fig. 55 show an example of a simplified map display in which roads are represented by two lines according to the eleventh embodiment of the present invention. Among them, 5201 in FIG. 54 is a display example of the case where the road in the map of FIG. 53 is represented by two lines in Embodiment 11, and the lines are broken into segments at the parts that obliquely cross other grids in 5202 . On the other hand, FIG. 55 is a display example showing the same road, and the broken lines are improved.

5301 in Fig. 56 indicates a simplified map code table in this embodiment. The 72 fonts from 0×f05c to 0×f0a4 include all the patterns on the left half that are required when two lines represent a road with an inclined direction, and the 72 fonts from 0×f05c to 0×f0ec also include all pattern on the right half of the .

Fig. 59 shows the essence of the intersection shape font comparison table referred to by the font conversion unit of this embodiment. The entire table is a combination of whether or not there are roads intersecting 8 borders and crossing 4 corners obliquely, and there are 4096 rows (that is, 212 rows) including combinations that do not exist.

The simplified map code string generation unit of this embodiment generates a grid representing the simplified map shown in FIG. 53 without road normalization as in the eleventh embodiment, and uses a character conversion unit to correspond to the simplified map. Generate a brief map code string. Here, the flow of the processing operation of the character conversion unit in this embodiment will be described with reference to FIG. 61. FIG. First start from the upper left, take out a grid (step 5400), if there is a grid adjacent to the left, check whether the link line of the grid intersects the boundary at the upper right and lower right, and check the grid if there is a grid adjacent to the right Whether the grid's link lines intersect the border at the top left and bottom left. If there are no left and right grids and there are adjacent grids on the upper side, check whether the link line of the grid intersects the boundary at the lower left and lower right; The upper right intersects with the boundary, updating the shape information of the intersection. (step 5401). For example, in the 4804 grid in Figure 53, the right grid has an intersection point in the upper right and lower right, and the left grid has no intersection point in the upper left and lower, and itself has intersection points in the upper, lower, left, and right sides. Therefore, the shape information of the intersection point is shown in Figure 60 5701 shown. Then with reference to the cross-point shape font comparison table of Figure 59, the code corresponding to the combination of whether each side of the grid and the corner link line intersects and whether each corner link line investigated in step 5401 intersects is used as the code of the grid output (step 5402). In the previous example, it corresponds to 5605 in Fig. 59, so 0xf09c, 0x08, 0xf0e6 are output. Also have, if relevant grid is the right end, just enter step 5404, line change code is appended on the output, if it is the last grid, just finish processing, if not, just return to step 5400 (step 5403). 5501 in FIG. 58 is an example of a simplified map code string corresponding to the simplified map in FIG. 53 in this embodiment. Only the offset to 0xf000 is shown here. Combinations corresponding to grids 4801 to 4804 in FIG. 53 respectively correspond to grids 5602 to 5605 in FIG. 59 , and the output codes correspond to parts 5502 to 5505 in FIG. 58 , respectively. Use the simplified map font data to display the hypertext data containing the simplified map code string 5501 on the hypertext display device, and then draw 5203 shown in FIG. 55 .

Therefore, the sloped road can be divided into segments without being broken by using a method that the user likes, that is, a method in which the road is represented by two lines.

In addition, although in this embodiment, the way of expressing roads by combining fonts with half shapes on the left and right has been described, if the storage device of the hypertext display device has sufficient storage capacity, all shapes can be prepared. The collection of fonts can easily realize the selection of a system that improves transmission efficiency and terminal processing efficiency.

As mentioned above, according to this embodiment, when the character conversion unit in the simplified map code string generating device converts the simplified map into a simplified map code string, not only the road shape of the target grid, but also the road shape of the nearby grid The shape is taken into consideration to determine the map code, so this feature can be used to realize an excellent hypertext display system that can automatically generate data for a rough map showing a sloping road with two lines.

Embodiment 13

Next, a thirteenth embodiment of the present invention will be described. 61 to 65 are explanatory views of a hypertext display system according to Embodiment 13 of the present invention. The structure of the hypertext display device of the present embodiment is the same as that of the first embodiment, and is shown in FIG. 6 . The structure of the hypertext providing device of the present embodiment is the same as that of the first embodiment, and is shown in FIG. 2 . The structure of the simplified map code string generator of this embodiment is the same as that of the tenth embodiment, and is shown in Fig. 25 .

5801 in FIG. 61 and 5802 in FIG. 62 represent a simplified map code table in this embodiment. The 72 fonts of 0×f080~0×f0fa cover all the patterns on the left half required when two lines are used to represent the road including the inclined direction, and the 72 fonts of 0×f180~0×f0fa Similarly, all the patterns on the right half are collected with the half-grid font.

Fig. 63 shows the essence of the cross-point shape font comparison table referred to by the font conversion unit of this embodiment. The entire table is a combination of whether or not there are roads intersecting 8 borders and crossing 4 corners obliquely, and there are 4096 rows (that is, 212 rows) including combinations that do not exist. The simplified map code table of the present embodiment is coded regularly based on the shape of the intersection, so it can be calculated and obtained according to the intersection shape and font comparison table. In FIG. 64 , 6001 is information on the intersection shape, 6002 is the calculated code of the left half grid pattern, and 6003 is the code of the right half grid pattern. When there are various intersections of 6001, it is 1, and if not, it is 0, and each numerical value is applied to each bit indicated by the arrows of 6002 and 6003, and the desired code can be obtained. As an example of intersection shape information, from the intersection shape of 5701, it can be obtained that the left side is 11110000, 11111000, that is, 0×f0f8, and the right side is 11110001, 11110000, that is, 0×f1f0. Again, following the code on the left side, the code on the right side usually appears. Using this point, it can be judged that the code whose highest end bit is 1 in the expression that deviates from 0×f000 is the code on the left side, and the highest bit connected to this is 1. The bit of is actually used as a code that deviates from the right side of 0×f100, so it can be expressed with only one low-end byte. In addition, the character conversion unit of this embodiment expresses half-frame characters with the codes shown above, and therefore does not need codes for instructing superimposed drawing. Also, in the case that the bits associated with the inclination shown in 6004 are all 0, for example, a code of an appropriate full-frame font of 0×f040˜0×f04a or 0×f05b is used.

Fig. 65 is an example of a simplified map code string in this embodiment. Here, only the offset value to 0xf000 is shown. The code corresponding to the intersection shape of 5701 is part of 6102.

Next, when the hypertext display device of this embodiment processes a simplified map code string, if there is a code on the left side behind the code on the left side, it will be converted into a code on the right side, and the simplified map font data will be used to generate and display data. The simplified map code string of 6101 is displayed as 5203 as in the twelfth embodiment.

Therefore, the same map as in the twelfth embodiment can be displayed without increasing the usage of the storage device of the hypertext display device and without using superimposed drawing.

Also, in this embodiment, the codes on the left side and the right side are each expressed in 1 byte, but the amount of information required for identification is 12 bits in total, so it is compressed into 3 bits with 2 bytes when transmitting. The amount of information shared by a full grid word is possible.

As mentioned above, if this embodiment is adopted, then in the hypertext display device, the simplified map font data includes various half-frame fonts corresponding to the left half and the right half of the simplified map component, and the hypertext dialog control unit utilizes the included Generate display data from the simplified map font data of the half grid font,

In the simplified map code string generation device, when the character conversion unit converts the simplified map into a simplified map code string, it simultaneously uses the method of making the codes of the characters of the whole grid share correspond to one grid and making the half of the left half and the half of the right half The code pairing code of the lattice font corresponds to one grid. Therefore, by using this feature, it is possible to automatically generate a two-system representation of the slope that can be displayed even on a terminal with a very small storage capacity and a very low computing power. Excellent hypertext display system for rough maps of roads.

As described above, according to the first invention, the map can be expressed by the character code string of the simplified map font, and the map can be expressed only by using the hypertext display function. Furthermore, since the character code string has a smaller data volume than map image data, it is possible to obtain an effect of shortening the communication time.

Also, according to the second invention, it is possible to obtain the effect of increasing map changes that can be expressed by a limited set of characters.

Also, according to the third invention, an advantageous effect of further shortening the communication time can be obtained.

Furthermore, according to the fourth invention, there is an advantageous effect that a link selection operation using a designated area on the map can be performed even without a pointing device. Furthermore, it is possible to obtain an advantageous effect that the image enlargement operation on the map can be performed intuitively.

Furthermore, according to the fifth invention, there is an advantageous effect that a link selection operation for specifying a mark on the map can be performed even without a pointing device.

Furthermore, according to the sixth invention, there is an advantageous effect that a simplified map for route guidance that can be clearly seen even at a long distance can be automatically generated.

In addition, according to the seventh invention, there is an advantageous effect that a simplified map for guiding the surrounding areas with high accuracy can be automatically generated even in a wide area.

Claims (19)

1. A hypertext display system, comprising a hypertext providing device that provides hypertext data to a user, and utilizing the user's operation to obtain the hypertext data provided by the hypertext providing device, and the hypertext display device that prompts the user constitutes , characterized in that, The hypertext data provided by the hypertext providing device at least includes data representing a map, and the data representing a map is represented by a text code string corresponding to the simplified map font data, hypertext display device by an input device that provides an input operation to a user, an input control unit connected to the input device and receiving an instruction from a user through the input device, an output device that provides visual information to the user, an output control unit connected to the output device and prompting information to the user through the output device, a first communication device providing a communication function, a first communication control unit connected to the first communication device and performing data transmission and reception through the network by means of the first communication device, Storage devices capable of long-term data storage, respectively connected to the input control unit, the output control unit, the storage device and the first communication control unit and control the character font data representing the shape of the characters stored in the storage device, stored in the storage device The simplified map character data representing the shapes of the simplified map components of the device, and the hypertext dialogue control unit for obtaining and displaying hypertext data and distributing user operation instructions, The hypertext provider is provided by a second communication device providing a communication function, a second communication control unit connected to the second communication device and performing data transmission and reception via the network by means of the second communication device, a simplified map code string acquisition unit that acquires a simplified map code string from the simplified map code string generation device, a hypertext generation unit that generates the provided hypertext data, And respectively connected to the second communication control unit, the simplified map code string acquisition unit and the hypertext generation unit, and execute hypertext according to the acquisition requirements from the hypertext display device received by the second communication control unit. The generation and transmission hypertext transmission control unit constitutes. 2. The hypertext display system according to claim 1, characterized in that, the data representing the map in the hypertext data provided by the hypertext providing device is corresponding to the text code corresponding to the simplified map font data and the half grid font data The code string representation of the literal code. 3. The hypertext display system according to claim 1, wherein, in the hypertext display device, the hypertext dialog control unit has a character pattern that can be overlapped, thereby generating an overlapping drawing unit of display data, and the hypertext providing device The data representing the map in the provided hypertext data is represented by a character code string corresponding to the simplified map font data including the overlapping drawing instruction. 4. The hypertext display system according to claim 3, characterized in that, in the hypertext display device, the line width is adjusted in the compilation of display data with overlapping drawing units, The data representing the map in the hypertext data provided by the hypertext providing device is expressed in a character code string corresponding to the simplified map font data containing the indication of the line break width. 5. The hypertext display system according to claim 1, wherein the hypertext providing device has a simple map code string compression unit that is connected to the hypertext transmission control unit and compresses the simple map code string, In the text display device, the hypertext dialog control unit has a simplified map code string expanding unit for expanding the compressed simplified map code string. 6. The hypertext display system according to claim 1, wherein: In the hypertext providing device, the hypertext generating unit provides hypertext data including map information to which link information of the equally divided area is added, In the hypertext display device, the hypertext dialogue control unit has an equal share mapping operation unit for mapping the selection of the equal share area of the hypertext data and keyboard operation. 7. The hypertext display system according to claim 5, characterized in that, in the hypertext display device, when the equidistribution mapping operation unit maps the equidistribution region and the keyboard operation, the spatial position of the equidistribution region and the keyboard is correspond. 8. The hypertext display system according to claim 5, wherein the hypertext data provided by the hypertext providing device includes additional map information to the link information of the equally divided area, and its link address further includes an additional pair of evenly divided areas. The hypertext data of the map information of the link information of the sub-area, the latter map content is an enlarged view of the evenly divided area of the former map content. 9. The hypertext display system according to claim 5, wherein the hypertext data provided by the hypertext providing device includes additional map information to the link information of the equally divided area, and its link address further includes an additional pair of evenly divided areas. In the hypertext data of the map information of the link information of the sub-area, the latter map content is an enlarged view of an area of a certain ratio including the evenly divided area of the former map content in the center. 10. The hypertext display system according to claim 1, further comprising a route search unit, the above-mentioned simplified map code string generation device having a simple route map data generation unit-this is obtained from the above-mentioned route search unit according to the order of passage Create a simple route map based on the acquired data and map data of the intersection points of the arranged routes, the angles passing through the intersection points, the number of link lines connected by the intersection points, the angles of the link lines connected, the types of landmarks along the road, and the ID data of the adjacent link lines of the landmarks A unit, and a character conversion unit for converting the generated simple route map into a simplified map code string. 11. The hypertext display system according to claim 1, wherein the simplified map code string generation device has: once the display position and the display range are input in the map data capable of distinguishing main roads from other roads in addition, according to In the map data divided into main roads and other roads, the main roads are deformed first, and the surrounding area of the area surrounded by the main roads is deformed while maintaining the coordinate position and the relative positional relationship between the roads due to the main road deformation. A brief map generation unit, and a font conversion unit for transforming the generated brief map into a brief map code string. 12. The hypertext display system according to claim 10 or 11, characterized in that, in the simplified map code string generation device, when the font transformation unit converts the simplified map into a simplified map code string, not only the grid of the object is considered The shape of the road, and the code is determined in consideration of the shape of the nearby grid road. 13. The hypertext display system according to claim 10 or 11, characterized in that, In the hypertext display device, the simplified map font data includes half-frame fonts corresponding to the left half and the right half of the simplified map components, and the hypertext dialog control unit utilizes the simplified map font data containing the half-grid fonts generate display data, In the simple map code string generation device, when the simple map is converted into a simple map code string by the font conversion unit, the code of the full-frame font is used to correspond to a grid, and the left half and the right half are used simultaneously. The paired codes of half-grid characters in the part correspond to the mode of 1 grid. 14. The hypertext display system according to claim 1, wherein said hypertext display device is connected to a hypertext providing device providing hypertext data to a user through a communication network, With the help of the user's operation, the hypertext data provided by the hypertext providing device is obtained through the network, and the user is prompted, Obtaining a character code string corresponding to the simplified map font data stored in the storage device in the display device through the network, and displaying hypertext data including the map expressed by the acquired simplified map font. 15. The hypertext display system according to claim 14, characterized in that the hypertext dialog control unit has an overlapping drawing unit capable of overlapping font graphics to generate display data. 16. The hypertext display system according to claim 15, characterized in that, in the hypertext display device, the overlapping drawing unit adjusts the line break width in the compilation of display data. 17. The hypertext display system according to claim 14, wherein the hypertext dialogue control unit has a simplified map code string expanding unit for expanding the compressed simplified map code string. 18. The hypertext display system according to claim 1, wherein: The hypertext display device is connected to a hypertext providing device that provides hypertext data that includes map information that adds link information to the equally divided area to the user through an image network, The hypertext dialogue control unit has an equal share mapping operation unit for mapping the selection of the equal share area of the hypertext data and the keyboard operation. 19. The hypertext display system according to claim 18, characterized in that, when the equal-division mapping operation unit maps the equal-division area and the keyboard operation, the equal-division area corresponds to the spatial configuration of the keys.

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