JPH10164635A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily transmit and receive hand-written image information with a portable terminal. SOLUTION: An information processor transmits image information by assigning the information to character codes in a radio section in such a way that an information processor is provided with an image information inputting means which obtains hand-written image information by indicating zones on a transparent tablet 3 laminated upon a liquid crystal display section 2 and the continuous image information is temporarily stored in the picture area 16 of a RAM 15. Then an N-bit shift register 20 segments the image information stored in the picture area 16, N bits by N bits from the leading bit and a character conversion table section 22 converts the segmented N-bit information into character codes. Thereafter, a transmitting means transmits the signals converted into the character codes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an advanced radio paging system (RCR STD-43) and the like.
The present invention relates to a simple message transmission device capable of transmitting / receiving a free text message, that is, a so-called reception / transmission information processing device for a paging system.

[0002]

2. Description of the Related Art Conventionally, for example, in the RCR STD-43, a "numeric message" transmission system for transmitting and receiving a number and some symbols at a fixed data size of 4 bits per digit has been used. However, since the above numerical message is 4 bits, at most 16 characters can be transmitted. In fact, since two of them are used by the system as dedicated control characters, only 14 characters can be used by a general user, and an image can be transmitted by this type of device. Did not.

Japanese Patent Application Laid-Open No. 4-72895 discloses a technique in which key input information of a code is converted into a combination of a plurality of numbers, a multi-frequency signal is transmitted, and the combination of numbers is restored to a code by a paging exchange. There is disclosed a technology that enables input of information other than numbers at low cost.

[0004]

A simple message transmission system, such as a conventional pager system,
It is standardized on the assumption that numbers, English characters, or characters according to Kanji code tables such as SJIS are transmitted, and it was not possible to transmit digitized bit image data such as hand-drawn pictures. .

The image data referred to here is, for example, a character on a touch panel formed on a large liquid crystal display screen using a special input jig for contacting a touch panel called a pen. This is data obtained by drawing a pen or picture on a piece of paper just like writing with a pencil and sampling the position of the pen touching the touch panel as a voltage value. This is binary data input using application software called by a name such as "handwritten memo" provided in the above. This image data is taken into the apparatus as input data and is displayed on the liquid crystal display screen as the pen touch position.

The image data is represented by a binary number, and data represented by only 0s and 1s has no regularity. Therefore, even if an attempt is made to convert the image data into character data, the image data cannot be directly represented by character data coded according to a standardized character conversion table having a small number of identifiable characters. However,
"Advanced Radio Paging System Standard" (RCR ST
D-43), one of the basic services that can be provided is a transparent service, which is capable of transmitting / receiving a binary message, but temporarily operates the transparent service. Is started, it takes time and money to develop a new pager receiving terminal.

In this method, a so-called "hex / binary message" for freely determining and transmitting a data size between 1 bit and 16 bits is used for transmission of a normal pager message. . According to the standard, a message can be transmitted by freely determining the data size between 1 bit and 16 bits. In particular, when using 1 bit, a sequence of binary data of 1 and 0 is transmitted / transmitted. It can be received and is most suitable for transmitting bit images.

[0008] However, it is necessary to install system-side facilities having functions capable of coping with various services capable of changing the data size, and it is naturally expected that traffic will be generated when the services are expanded too much. There are problems such as the need to avoid the tightness of telephone lines due to saturation in advance.

According to the present invention, image data is transmitted / received and information is exchanged using handwritten data or the like on a character data only transmission / reception service which is currently frequently used by only partially changing the current system. It is an object of the present invention to improve the use value of an information processing apparatus such as a pager system in such a manner as to enable the use of the information processing apparatus.

[0010]

According to the present invention, in order to achieve the above object, an information processing apparatus according to the first aspect of the present invention is an information processing apparatus using a wireless calling system capable of transmitting a free text. , An extracting means for extracting the image information input from the image information input means by N bits from the first bit, and an N-bit information extracted by the extracting means by referring to a character code table. Character code conversion means for converting to a character code, and transmission means for transmitting a character code output from the character code conversion means, wherein image information is assigned to a character code in a wireless section and transmitted. I do.

Accordingly, image data to be transmitted / received in the wireless section of the pager is inputted by the image information input means, and the binary numbers (bits) described by continuous 1s and 0s are arranged as time series data. Then, the extracting means cuts out N bits at a time from the first bit to form a character group of N1, N2, N3,... Nm. Character groups obtained by character grouping are
Each of them is an N-bit size numerical value representing an arbitrary value (size).

The range which these numerical values can take is 2 ＾ 0
Since 2 ＾ N−1, it can be replaced with 2 ＾ N types of characters. The number of characters that can be handled by the character code table used mainly for displaying free sentences in the pager system is 2 ＾.
If it is N or more, all the bit images can be replaced with the character code by the character code conversion means.
If the value of N is determined, it becomes possible to convert all the image data into character codes. Then, the image data converted into the character code as described above is transmitted in the wireless section by the transmission means.

According to a second aspect of the present invention, in the information processing apparatus according to the first aspect, the image information input means is formed integrally with a display device for displaying information to be transmitted and received. , A transparent tablet in which information on the designated position is input as an input signal.

Therefore, if a hand or a pen points on the transparent tablet laminated on the display device, information corresponding to the pointed position on the tablet is input by the image information input means.
Since the image data is input to the apparatus main body and converted into character codes and transmitted, it is possible to easily perform input when transmitting handwritten image data such as pictures and handwritten characters after converting them into character codes. .

According to a third aspect of the present invention, in the information processing apparatus of the first and second aspects, the character code converting means is a converting means for converting image data into a delimiter code. It is characterized by.

Therefore, the image data input from the image information input means is converted into data of a predetermined bit,
Since this is converted into a character code by the delimiter code, the conversion into the character code can be easily and reliably performed.

According to a fourth aspect of the present invention, in the information processing apparatus according to the third aspect, the number N of bits of information for extracting image information input from the image information input means by the extracting means is set to thirteen. Is set.

[0018] Therefore, when the number of bits N of data cut out image data input from the image information input means with cutting means 13, will be 2 ¹³ = 8192 number of data can be handled, empty Character Codes Since the number of character codes including codes is 8,836, the cut-out image data can be efficiently converted to character codes.

According to a fifth aspect of the present invention, in the information processing apparatus according to the second, third and fourth aspects, the display device is a liquid crystal display device.

Therefore, since the display device is constituted by a liquid crystal display device, it is possible to provide a power saving type information processing device, which is particularly suitable for a portable terminal. In addition, since the transparent tablet is laminated on the liquid crystal display, the position indicated on the transparent tablet corresponding to the display picture element can be detected on the liquid crystal display device, making it easy to detect the data of handwriting input. Can be provided.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of the information processing apparatus of the present invention. In FIG. 1, reference numeral 1 denotes an input / output unit, and the input / output unit 1 is provided with a liquid crystal display unit 2 and a transparent tablet 3 constituting a touch panel integrally formed on the liquid crystal display unit 2. ing. 4
Is a tablet control unit for extracting coordinate information from the transparent tablet 3. The tablet control unit is connected to transparent electrodes provided on two opposing transparent sheets constituting the transparent tablet 3, and designated by a finger or a pen. The position on the transparent tablet 3 is detected by the contact of the transparent electrodes provided on the transparent sheets.

Reference numeral 5 denotes a liquid crystal display circuit unit for driving the liquid crystal display unit 2, which stores dot positions for turning on the liquid crystal as a bit map, and drives the common electrode of the liquid crystal display unit 2 as necessary. Circuit 6 and segment circuit 7 for driving the segment electrodes of the liquid crystal display unit 2
Send a signal to Reference numeral 8 denotes a central control unit that controls input information or output information according to various commands. Reference numeral 9 denotes an RTC that measures time using a clock signal (not shown), and outputs the current time to the central control unit 8.

Reference numeral 10 denotes a ROM, and the central control unit 8
A program area 11 for storing a program for instructing the operation of the above, a dictionary area 12 for character conversion, a font information area 13 for storing a font of a character to be displayed on the liquid crystal display unit 2, and a detection by the tablet control unit 4. It has a coordinate information area 14 in which coordinate conversion information for converting coordinates into coordinates corresponding to the display position is stored.

Reference numeral 15 denotes a RAM, which is provided with an image area 16 for storing image data input by the user from the input / output unit 1 and a transmission information area 17 for holding information for transmission. . Reference numeral 18 denotes a receiving unit for receiving information transmitted by radio, and 1
Reference numeral 9 denotes a battery for supplying power to each unit.

Reference numeral 20 denotes a shift register for cutting out image data of the image area 16 by specific bits, and reference numeral 21 denotes a character conversion table stored in a form in which image data to be described later and a dot code are compared. The image data of the unit 22 is compared with the bits of the shift register 20,
This is a detection unit that detects a match.

Reference numeral 23 denotes a gate unit for storing a delimiter code corresponding to the image data detected according to the output of the detection unit 21 in the transmission information area 17, and reference numeral 24 denotes a gate unit stored in the transmission information area 17. This is a tone generation unit that sequentially converts the existing punctuation point codes into tone signals and sends out the tone signals to the telephone line via the speaker 25. In this embodiment, the signal is transmitted by sound, but may be transmitted by infrared communication.

FIG. 2 is a perspective view of the appearance of the information processing apparatus of the present invention. In FIG. 2, reference numeral 30 denotes a main body cabinet, and the circuit shown in FIG. 1 is built in the main body cabinet 30. Reference numeral 1 denotes an input / output unit provided in the main body cabinet unit 30. Reference numeral 31 denotes a lid that is rotatably attached to the back of the main body cabinet by a hinge and protects the input / output unit 1 so as to cover it when closed. 3
Reference numeral 2 denotes a keyboard including numeric and code keys for keying in information.

FIG. 3 is an exploded perspective view of the input / output unit 1. The input / output unit 1 is configured by stacking a thin liquid crystal display unit 2 capable of displaying characters or figures and a transparent tablet 3 having a size to cover the liquid crystal display unit 2. And
In the transparent tablet 3, for example, transparent electrodes are provided on the inner surface of two transparent sheets, and small projecting spacers are regularly printed so that each electrode does not contact in a normal state. When the user designates a predetermined position, the opposing transparent electrodes in that portion come into contact with each other.

Therefore, the position selected from the contact positions can be detected by the transparent tablet 3.
In this case, it is possible to detect the position of the liquid crystal display unit 2 selected by the user by synchronizing the display timing of each display picture element of the liquid crystal display unit 2 with the position information instructed by pressing with the pen. Reference numeral 3 denotes a keyboard for keying information.

Next, the operation of the embodiment of the present invention will be described. Image data input from the transparent tablet 3 of the input / output unit 1 is detected by the tablet control unit 4 and stored in the RAM 1
5 and is displayed on the liquid crystal display unit 2. The image data stored in the image area 16 is sequentially stored in the shift register 20 starting from the first bit.
, And are shifted and cut out at predetermined bits. If the shift register 20 has, for example, 13 bits, 1
Three bits are cut out.

When the data in the image area 16 is shifted so as to fill all the bits of the shift register 20, the bit information is supplied from the detection section 21 to the character conversion table section 22, and if the image data is 13 bits. , The position corresponding to the 13-bit image data is stored in the character conversion table 2
The image data is searched for from the image data column of No. 2 and four-digit code data corresponding to the image data is output to the gate unit 23. The gate unit 23 sends out a Kuten code from the Kuten code column corresponding to the image data of the character conversion table unit 22 detected by the detecting unit 21 to the transmission information area 17 and stores it in the transmission information area 17.

With the above processing, the conversion processing for converting the first 13 bits of the image data into the dot code is completed. Subsequently, 13 bits from the 14th bit are supplied to the shift register 20, and the same processing as described above is sequentially repeated. By performing this processing on all the image data stored in the image area 16, the conversion of the image data into the breakpoint codes is completed. Then, the information converted into the dot code is transmitted in the same manner as the transmission of characters, and is converted into image data again on the receiving side to reproduce the image information.

Next, the operation of the embodiment of the present invention will be described in more detail. "Advanced wireless paging system standard"
A case where image data is transmitted / received using “hexadecimal / binary message” among message types handled in (hereinafter simply referred to as RCR STD-43) will be described. Also, a method for realizing image transmission using a message transmission method using a message size fixed to 16 bits and a kanji code table will be described. In transmitting a pager message, most users enter the message from a telephone.

In this case, the sender uses the telephone key (0, 1,.
2, 3, 4, 5, 6, 7, 8, 9, *, #) are transmitted to the system (so-called pager base station), and the pager base station transmits the tone signal. Identify and send to the other party as a message. Hexadecimal / 2
In the hexadecimal message service, what is specified for input in tone transmission is a combination code of numbers according to a punctuation code table. The Kuten code table is composed of JIS first-level characters 0101 to 4794 and second-level characters 4801 to 4794.

FIG. 4 shows the relationship between the Kuten code in the kanji code table in JIS and the JIS code normally handled as data in a portable terminal or the like. The first-level character code number is 4418, and the second-level character number is 4418 characters. When a user of a pager transmits a message in a free sentence, the user enters a Kuten code, that is, a four-digit decimal number sequence, using the numeric keys following the input of the # key.
Transmission can be performed character by character. For example, suppose you want to send a message like the following: (Example message) It's a meeting tomorrow at 9:00.

This example is composed of a total of 11 characters of kana, kanji, character numbers, and punctuation marks (.). In actual transmission, the user inputs the key shown in FIG. Will do. Instead of pressing a key to send a message, on a mobile terminal with a tone transmission function,
By transmitting a tone, a message can be transmitted in exactly the same way as a key press with a tone signal.
In this case, the labor for pressing the key can be saved.

On the system side, that is, the pager base station, the character data input by the Kuten code is converted into the corresponding SJIS code as shown in FIG.
(6 bits), and the radio section is transmitted as a pager signal to the receiver side.

In the Kuten code table, in practice, characters such as kana and kanji are not assigned to all codes existing in the range, but unused codes to which no characters are assigned are used. Means that even if a key or tone is transmitted, the system side transmits the SJIS code corresponding to the punctuation code in the wireless section, so the receiver must determine that the punctuation code has been transmitted. Can be. Therefore, using the code in the range of 8636 including the code before the Kuten code, that is, the empty code without characters,
Image transmission can be performed.

As described above, the image data to be transmitted / received in the radio section of the pager is arranged as a series of binary numbers (bits) described by continuous 1s and 0s as time-series data. Time series data of consecutive 1s and 0s are cut out N bits at a time from the first bit, and N
.., Nm. In this case, N1, N2, N3,..., Nm are all N-bit time series data.

Since a mark code of 8836 characters can be used, when N = 13 is selected, the cutout processing in units of 13 bits makes each cutout group unit 2 ＾ N =
It can be represented by any of 2 ＾ 13 = 8192 types of image patterns. That is, N1, N2, N3,..., Nm
Are 0 to 8192 in binary notation.
000000000 to 1111111111111.

Since there are 8836 kuten codes,
Of these 8192 types of image data, 8192 codes are selected from the Kuten codes and correspond to each other on a one-to-one basis, so that all of them can be completely replaced with tactile codes. For example, they can be associated as in the example shown in FIG.

An example of conversion in the case of converting to a Kuten code using actual image data will be described. In FIG. 8, 116 ×
The example of the image drawn on the image screen of 100 dots is used. This is a size of 116 x 100 dots,
Alternatively, an image is input by pressing a touch panel composed of a transparent tablet 3 pasted on the display screen of the liquid crystal display unit 2 having a larger size with a dedicated input pen, and the input image is read as image data. The image data is stored as image data in a memory constituting an image area 16 provided in the RAM 15 and displayed on the liquid crystal screen as if the same image was drawn on the liquid crystal.

The image data in this case is shown in FIGS.
The data array is as shown in FIG. 9 to 12
Is described in hexadecimal notation for convenience of description, but it is clear that the data is the same as binary data. In FIGS. 9 to 12, for example, one data is represented by a three-digit number + h such as 0F8h, but this is a data description method generally used in a program list or the like. The last h is only attached to indicate that it is a hexadecimal number and can be ignored. That is, if the leftmost bit is LSB and the rightmost bit is MSB, 8F = 1111001
16 bits.

Data extraction in units of 13 bits is shown in FIG.
At the beginning of the image data shown in FIG. 9, that is, from the position shown in FIG. That is, from the position, data in 13-bit units in binary numbers is converted in accordance with a predetermined rule, such as that shown in FIG.

However, since the 0 value continues for a while from the position of FIG. 9, it is assumed that the position of FIG. FIG. 13 shows the result of converting the numbers. In order to make it easy to understand the correspondence with the numerical value from the position shown in FIG. 9, a delimiter space is inserted every 8 bits, but there is actually no space and the data is continuous. When the data in FIG. 13 is divided into 13 bits, the result is as shown in FIG. 14. When the arrangement of bits in FIG. 14 is changed from the LSB to the MSB and replaced with a hexadecimal number, the result becomes as shown in FIG. The result is as shown in FIG.

Each value in FIG. 16 can be replaced with a delimiter code according to, for example, a conversion table as shown in FIG. 7, and the data represented by the delimiter code can be transmitted as a pager message. In the case of 116 × 100 dot data. Although the image data amount is 11600 dots,
When converted to a Kuten code by dividing by 13 bits, 116
00 ÷ 13 = 8923 The remaining one bit is also necessary data, so to convert this one bit, blank, that is, always give 12 bits of 0 for the conversion of this last bit and convert it as one character I do. Therefore, 8924 in total
Characters. By transmitting the 8924 characters from the portable terminal by tone transmission, the image data can be transmitted by a normal message pager system.

[0047]

Since the present invention has the above configuration, the image data can be converted into the character data without changing the pager system operated to transmit / receive only the message in the character on the radio section. Since the data is allocated and transmitted / received, it becomes possible to transmit / receive the image data with the same data amount and data rate as when transmitting / receiving the text message.

Therefore, if a function such as a tone dialer is provided in a conventional handwritten input type portable terminal device as a tool for transmitting a pager message (data), a picture or handwritten character input by handwriting can be converted to a kana-kanji conversion function or the like. Therefore, it is possible to directly transmit a pager message without replacing each time with font-converted characters, so that image data can be easily transmitted. Also,
When the same mobile terminal has a built-in RF receiver and decoder for pager reception and has a function as a pager reception terminal, it receives image data transmitted from other mobile terminals and displays image information on a liquid crystal display It can be displayed on the screen.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view of the appearance of an embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a configuration of a main part of one embodiment of the present invention.

FIG. 4 is a diagram showing a relationship between a Kuten code and an SJIS code.

FIG. 5 is a diagram showing input data when a message example is transmitted.

FIG. 6 is a diagram illustrating an SJIS code when data of a message example is transmitted in a wireless section.

FIG. 7 is a diagram showing an example of conversion between image data and a Kuten code used in the present invention.

FIG. 8 is a diagram showing an example of a handwritten image used in the present invention.

9 is a diagram expressing the example of the image shown in FIG. 8 by hexadecimal data.

FIG. 10 is a diagram expressing the image example shown in FIG. 8 by hexadecimal data.

FIG. 11 is a diagram expressing the example of the image shown in FIG. 8 by hexadecimal data.

FIG. 12 is a diagram expressing the example of the image shown in FIG. 8 by hexadecimal data.

FIG. 13 is a diagram showing data obtained by cutting out a part of the data shown in FIG. 9;

FIG. 14 is a diagram in a case where the data of FIG. 13 is converted into data divided into 13 bits.

FIG. 15 is a diagram showing data when the data of FIG. 14 is replaced by a hexadecimal number.

FIG. 16 is a diagram showing data when the data of FIG. 15 is replaced with a decimal number.

[Explanation of symbols]

 Reference Signs List 1 input / output unit 2 liquid crystal display unit 3 transparent tablet 4 tablet control unit 8 central control unit 10 ROM 11 program area 15 RAM 16 image area 17 transmission information area 20 shift register 21 detection unit 22 character conversion table unit 23 gate unit

Claims (5)

[Claims] In an information processing apparatus using a wireless calling system capable of transmitting a free text, an image information input means for inputting image information, and image information input from the image information input means being N bits from a first bit. Cutting means for cutting out one by one, and N cut out by the cutting means.
Character code conversion means for converting bit information into a character code by referring to a character code table; and transmission means for transmitting a character code output from the character code conversion means, and allocating image information to the character code in the wireless section An information processing apparatus characterized in that the information is transmitted by transmitting. 2. The image information input means according to claim 1, wherein said image information input means is formed integrally with a display device for displaying information to be transmitted and received, and is constituted by a transparent tablet into which information at a designated position is input as an input signal. The information processing apparatus according to claim 1. 3. The information processing apparatus according to claim 1, wherein said character code conversion means is conversion means for converting image data into a dot code. 4. The information processing apparatus according to claim 3, wherein the number N of bits of information for extracting image information input from said image information input means by said extraction means is set to 13. 5. The information processing apparatus according to claim 2, wherein said display device is a liquid crystal display device.