JP2000181822A - Portable data transmission-reception terminal equipment and portable communication system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable data transmission-reception terminal equipment by which data such as an electronic mail is easily exchanged free of change without using a telephone line, and to provide a portable communication system using the equipment. SOLUTION: A certain terminal automatically and successively exchange data such as an electronic mail to plural exchange terminal through the use of feeble electromagnetic wave. Another terminal existing in an area capable of executing radio communication with the terminal receives the transmission data by a communication unit, stores it in a temporary storage memory (RAM) and displays reception data which is stored in an RAM in liquid crystal display equipment. Thus, a user who receives the mail can read the mail addressed to him or her.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable data transmission / reception terminal device and a portable communication system using the same.
In particular, the present invention relates to a portable data transmission / reception terminal device having a function of transmitting and receiving data such as electronic mail and characters (symbols and the like) by weak radio waves, and a portable communication system using the same.

[0002]

2. Description of the Related Art Conventionally, there has been known a portable information terminal device such as a pager having an electronic mail transmitting / receiving function.
In the conventional e-mail transmission / reception system, a mobile terminal (pecket bell) is used only for reception. It is transmitted to the mobile terminal through a nearby antenna.
In this case, a unique ID (e-mail address) is assigned to the portable terminal owner, and the destination is designated as the destination information.

[0003]

In the above-mentioned electronic mail communication system, since a telephone line must be used, the communication equipment becomes large, and the cost of a part of the communication equipment is increased in addition to the cost of the portable terminal alone. Must also be borne at the time of subscription, and a separate line usage fee is required for use. Therefore, a corresponding burden is required for owning and using a mobile terminal. In particular, frequently used users will have to pay large usage fees (communications costs). Also,
A contract with an e-mail service provider is required, and a service fee is also required. In addition, incoming e-mail
Since you can not confirm without connecting to the mail server,
There are restrictions on where you can receive and use incoming mail. When sending e-mail, it is necessary to specify the destination (send address or destination number).
It is not possible to send e-mail communication like transmitting a message to an unspecified number of people like a game, and in order to send e-mail to a large number of specific people, high communication costs proportional to the number of destinations are required. Was needed.

[0004] Therefore, a main object of the present invention is to provide a portable data transmission / reception terminal device capable of easily transmitting and receiving data such as electronic mail without using a telephone line, and a portable communication using the same. Is to provide a system. Another object of the present invention is to send an e-mail or the like to an unspecified number of people without knowing the destination information of the transmission destination, and send the e-mail to a desired partner via an unspecified terminal device. It is an object of the present invention to provide a portable data transmission / reception terminal device capable of transmitting data such as data, and a communication system using the same.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a portable data transmitting / receiving terminal device for transmitting / receiving data such as electronic mail and a portable communication system using the same. A portable data transmission / reception terminal device according to a first invention (an invention described in claim 1) includes a communication unit for automatically wirelessly communicating with another terminal device, a temporary storage unit for storing at least received data, Display means for displaying the received data;
Processing means. The processing unit automatically transmits the data stored in the temporary storage unit to another terminal device within the communicable area of the communication unit, and transmits the data transmitted from the other terminal device within the communicable area. Automatically received and stored in the temporary storage means, and the received data stored in the temporary storage means is displayed on the display means.

A portable communication system according to a second invention (an invention according to claim 6) includes a portable data terminal device and a cartridge detachable from the portable data terminal device. The portable data terminal device includes at least display means for displaying received data and first processing means. The cartridge includes communication means for automatically wirelessly communicating with another terminal device, temporary storage means for storing at least received data, and second processing means. The first processing means causes the display means to display the received data stored in the storage means. The second processing means automatically transmits the data stored in the temporary storage means to another terminal device existing in the communicable area with the communication means, and transmits the data in a predetermined relation existing in the communicable area. Automatically receives the data transmitted from the other terminal device stored in the storage device and stores the data in the temporary storage means.

[0007]

According to the portable data transmitting / receiving terminal device of the first invention, the communication means of a certain portable data transmitting / receiving terminal device (transmitting side) transmits the transmission data to be transmitted by wireless communication. Communication means of another portable data transmission / reception terminal device (reception side) existing in an area where the wireless communication can be received receives the transmission data, and processing means on the reception side temporarily stores the reception data on the reception side. Store in the means. Further, the processing means causes the reception-side display means to display the reception data stored in the temporary storage means. Preferably, destination information is added when transmitting the transmission data in order to specify a portable data transmission / reception terminal device capable of receiving the transmission data.

In the portable communication system according to the second invention, the communication means included in the cartridge corresponding to a certain portable data transmission / reception terminal device (transmission side) transmits transmission data to another portable data transmission / reception terminal device (reception side). ) Automatically by wireless communication. At that time, the communication means included in the cartridge corresponding to another portable data transmission / reception terminal device (reception side) existing in the communicable area automatically receives the transmission data, and the first processing means transmits the transmission data. The received data is stored by writing it into the temporary storage means. Then, when the cartridge is mounted on another portable data transmission / reception terminal device (reception side), the second processing means displays the reception data stored in the temporary storage means on the display means.

[0009] Thus, the owner of the portable data transmission / reception terminal device can automatically receive transmission data from an unspecified person or a specific person, and can view and read the received data. E-mail (or message), e-mail from unspecified people and advertising information (bargain information)
And the like can be obtained or collected without incurring communication costs, and various enjoyments can be obtained and information can be exchanged by going out with a portable data transmission / reception terminal device or a cartridge.

[0010]

According to the present invention, data such as e-mail can be transmitted and received easily and free from anywhere without using a telephone line. When data such as e-mail is to be transmitted to an unspecified number of people, the data can be transmitted without knowing the destination information of the transmission destination. Further, when it is desired to transmit data such as an e-mail to a specific party, the data can be transmitted via an unspecified terminal device.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 schematically illustrates the principle of transmitting or transmitting transmission data such as character data by wireless communication using a portable data transmission / reception terminal device according to one embodiment of the present invention. FIG. For example, when a portable data transmission / reception terminal device (abbreviated as “terminal” or “transmission / reception terminal” in the drawings and the following description) A transmits transmission data by radio waves, the portable data transmission / reception terminal device exists in an area where the radio waves can be received. The other terminals B, C, and D receive the transmission data.
At this time, the radio wave transmitted by the terminal A is preferably a weak radio wave that does not require a license based on the Radio Law. The other terminals B, C, and D transfer the received data if the received data does not correspond to its own destination, if it corresponds to an indirect mail described later. In addition, if the mail is intended to be transferred to an unspecified number of people, for example, information such as an advertisement described below, even if it is neither a direct mail nor an indirect mail, other terminals E and F existing in the area are used. , G
Is forwarded to

An embodiment of the present invention will be described below with reference to the accompanying drawings. For simplicity, the transmission and reception data will be described assuming an electronic mail or a mail for an unspecified person. The e-mail for unspecified persons is, for example, a non-descript message such as news, advertisement, and bargain information, or a message that can be read by an unspecified number of persons. Specifically, the following three types of transmission / reception data can be considered. (1) A case where a direct mail is sent This is a case where the terminal A specifies a destination and directly transmits the mail to a specific terminal (for example, D). The transmission data is continuously stored only in the terminal D in which the destination information of the e-mail and the user identification information of the transmission / reception terminal have a predetermined relationship (for example, match),
Only that user can see the email. However, if there is no specific terminal (eg, G) as the destination in the communicable area, the e-mail may not arrive, but both the transmitting side (A) and the receiving side (G) can communicate. E-mail will be forwarded when approaching the area. (2) In the case of sending indirect mail This is a case where terminal A specifies a destination and sends it to a specific terminal (G), and one or more other terminals existing between the sender and the receiver determine the intention of the user. Performs relay communication (or mail transfer) independently. In an embodiment described later, when the terminal (D) that performs relaying stores and sets the user identification information of the destination terminal (G) in the address book, the data received by the terminal D is temporarily stored, When moving and approaching the terminal G and coming within the communicable area, the terminal A
Forward mail from. It should be noted that a plurality of unspecified terminals B and C and E and F may relay to a specific terminal G by successively relaying. In this case, the terminals B, C, and D to be relayed are programmatically set so that they cannot read the contents of the message, and can read only the mail having the destination information of themselves. Even if there is no destination terminal device in the communicable area due to the presence of the terminals B to F serving as relays, the e-mail is delivered to the specific terminal G farther by being transferred one after another. (3) When forwarding mail that the user has not actively selected to receive, such as news or advertisements. When sending to an unspecified number of terminal devices without specifying a destination, all terminals within the communicable area must be forwarded. Sent to
All terminals can receive and read the content of the received data. The transmission / reception data is not limited to character data (or character code), but may be a figure or a symbol, or image data of a photographed image. In the following description, data to be transmitted and received will be collectively referred to as mails and the like.

FIG. 2 is an external view of a portable data transmitting / receiving terminal device and / or a data display / creating device according to an embodiment of the present invention. Portable data transmission / reception terminal device (hereinafter, referred to as
The “terminal” or “transmission / reception terminal” 10) is configured by combining a cartridge 20 having a transmission / reception function and a data display / creation device 30. Cartridge 20
Are detachably attached to the data display / creation device 30 and are electrically connectable when attached. The cartridge 20 has a function of transmitting and receiving data and a function of storing received data. By carrying it alone, mail with another cartridge (when used alone, this cartridge may sometimes function as a terminal) And the like (or mail communication). In the cartridge 20, an antenna 22 is formed on a housing 21, and a display unit 23 such as a light emitting diode (LED) for indicating a reception state is formed at a position visible from the outside of the housing 21, and a data display / creating device is provided below the display unit 23. A connector 24 for connecting to the connector 30 is formed. On the other hand, the data display / creation device 30 creates mail to be transmitted,
A display 32 such as a liquid crystal is provided on one main surface (front surface) of the housing 31 and a plurality of operation switches 33 a to 33 are provided below the display 32.
e, and an insertion portion 34 for inserting the cartridge 20 into the other main surface (back surface) of the housing 31 is formed.

FIG. 3 shows a state in which the above-described cartridges 20 are mounted on the data display / creating apparatus 30 and used in combination (ie, a state in which the cartridges 20 are used as the portable data transmitting / receiving terminal apparatus 10 when reading received data). It is. When the owner (user) of the terminal 10 goes out,
In order to read the data received while going out, carry both the cartridge 20 and the data display and creation device 30 in a pocket or bag of clothes, carry out only data transmission and reception while going out, and download the received data after returning home. When the user wants to read the book, he or she goes out with the cartridge 20 alone.

In the embodiment shown in FIGS. 2 and 3, the terminal 1
0 has been described as being separable into the cartridge 20 and the data display / creating device 30, but may be configured as an integrated terminal 100 as shown in FIG. In that case, the components included in the cartridge 10 (see FIG. 5 described later)
, And the antenna 122 is exposed from the terminal 100. The other parts are shown by adding a hundredth numeral to the beginning of the corresponding two-digit number in the corresponding part of the embodiment of FIG. 2 and omitting the detailed description.

FIG. 5 is a block diagram of the cartridge 20. In FIG. 5, the cartridge 20 includes an antenna 22
The circuit section 260 is configured by mounting the LED 23 on the substrate 25 and mounting various electronic components.
The circuit unit 260 includes a communication unit 261 and a CPU 262.
, Work RAM 264, reset IC 265, and R
OM 266, SRAM 267, power supply switching circuit 268
, SRAM battery 269, multi-bank controller (MBC) 271, connector 273, battery 274
It is comprised including. The communication unit includes a transmitter and a receiver for transmitting and receiving weak radio waves that do not require a license under the Radio Law, and modulates and transmits codes or dot data such as data such as character data, characters, and symbols. The CPU 262 performs the transmission / reception operation of the communication unit 261 and the writing / writing of the work RAM 264 and the S-RAM 267 based on the program data in the built-in ROM 263.
In addition to performing read control, data is exchanged with the CPU 35 of the data display / creation device 30. This CPU2
62 and a ROM 226 are a memory bank controller (hereinafter abbreviated as “MBC”) 271 and a connector 23.
7 and is electrically connected to the connector 36 of the data display / creation device 30. Further, a reset IC 265 is connected to the CPU 262. MBC 271 is a CPU 35
From the CPU 35 based on the specific address data of the address bus accessible from the
Switching between the RAM 276 and the CPU 262 to be connected to the address bus of the CPU 35; MB
The C271 has a built-in timer for counting the date and time as needed, and is used as a time data generation source when it is necessary to add time data during communication to transmission data and transmit the data.

The ROM 263 stores in advance a communication program (a program for realizing the functions of flowcharts shown in FIGS. 10 to 13 described later) when the cartridge 20 is used alone as a transmission / reception terminal.
62. In the ROM 266, when the cartridge 20 is mounted on the data display / creating device 30, a program for displaying received data and / or creating transmitted data, which is executed by the CPU 35 (see flowcharts shown in FIGS. 14 and 15 described later). (A program for realizing the above function) is stored in advance.

FIG. 6 is a block diagram of the data display / creation apparatus 30. In FIG. 6, the data display / creation device 30
The CPU including the CPU 35 is connected to the connector 273 of the cartridge 20 via the connector 36. Further, the liquid crystal display 32 and the operation switch 33 are connected to the CPU 35.

FIG. 7 is a diagram schematically showing a storage area of the S-RAM 267. In the figure, the S-RAM 267 includes a reception data storage area 267a, a transmission data storage area 267b, an address book storage area 267c, and a user identification information (ID information) storage area 267d. The reception data storage area 267a is an area for storing data such as mail received from another terminal. Transmission data storage area 2
Reference numeral 67b denotes an area for storing transmission data input by the user operating the operation switch 33 by being mounted on the data display / creation apparatus 30 and used. Received data storage area 267a and transmitted data storage area 26
In 7b, mail data to be transmitted (transmission data body)
In addition, various data added to the mail data (for example, signal type, self ID.
D, transmission data, checksum, timing information, received flag, etc.) are also stored. The received flag is a flag indicating that the same mail has been received by the direct mail transfer method. The user ID information is information for specifying the transmitting / receiving terminal device, and is, for example, a name, an address, a date of birth, a telephone number, and the like, but may be a character or numeric string that can be identified from other terminals. Address book data storage area 26
7c is the user ID information of another terminal with which the user wishes to communicate. This is used as ID information for determining whether or not to relay when transferring mail by the indirect mail transfer method. For example, in the address book data storage area 267c, one or more user ID information unique to a friend's terminal is set and registered in advance.
When receiving a mail with destination information addressed to a friend, the cartridge 10 functions as a relay device for relaying the transfer of the mail.

Referring again to FIG. 5, power supply switching circuit 26
8, when the cartridge 10 is mounted on the data display / creation device 30 and the power is supplied from the data display / creation device 30, the power supply of the battery 269 is stopped, and the power is supplied from the data display / creation device 30. When the power is not supplied, the power of the battery 269 is supplied to the S-RAM 267 to
-Prevents the data stored in the RAM 267 from volatilizing. FIG. 6 is a block diagram of the data display / creation device 30. In FIG. 6, the data display / creation device 30 includes a display device 31, an input device 32, a CPU 35, and a connector 36 for connecting to the transmission / reception terminal device 20.

FIG. 8 is a diagram showing an outline of a procedure for transmitting and receiving data. FIG. 9 is a diagram showing a format of communication data. Next, a procedure for transmitting and receiving data will be described with reference to FIGS. First, the transmitting / receiving terminal device 1 on the transmitting side transmits a preamble signal prior to transmitting data. The preamble signal is, as shown in FIG.
It comprises a signal type, a self ID, transmission data information, and a checksum part. The signal type is preamble signal,
This is data for distinguishing between the response signal and the data body signal. The self ID is the user I of the transmitting / receiving terminal device 1 on the transmitting side.
D information. The transmission data information includes the creation date and time of the e-mail to be transmitted, the user ID information of the creator, the user ID information of the destination, the data type for identifying whether it is e-mail or news, and the direct mail or indirect mail for e-mail. And the expiration date data and the like for identifying the mode. The expiration date data is, for example, information for deleting the data from the SRAM 267 when the transmission / reception data is news data such as bargain sale information or event information of a supermarket after the bargain sale period or the event period. The checksum part is used to check whether correct data has been received.

The transmitting / receiving terminal device 2 on the receiving side receives the preamble signal, determines whether or not it is an electronic mail or the like to be received based on transmission data information included in the preamble signal, and receives the electronic mail. If so, a response signal is transmitted. The response signal includes a signal type, a self-ID, transmission data information, and a checksum part, like the preamble signal. In addition to these, it includes user ID information (user ID information included in the preamble signal) of the transmitting / receiving terminal device 1 and timing information. The timing information is for adjusting the transmission timing of the transmitting / receiving terminal device 1 on the transmitting side and the receiving timing of the transmitting / receiving terminal device 2 on the receiving side, and specifically, information of how many seconds after the transmission of the response signal.

After transmitting the preamble signal, the transmitting / receiving terminal apparatus 1 waits for a response signal to be transmitted from the receiving / receiving transmitting / receiving terminal apparatus 2. When the response signal is received, the timing information included in the response signal includes At the same time, a data body signal is transmitted, and the transmitting / receiving terminal device 2 on the receiving side receives this.

FIG. 10 is a flowchart of the main routine of the communication program. FIG. 11 and FIG. 12 are flowcharts of the transmission subroutine and the reception subroutine in the main routine flowchart. FIG.
14 is a flowchart showing details of a process (step 124) for determining whether or not to receive in the reception subroutine.

Next, the operation at the time of communication of this embodiment will be described with reference to FIGS. When the battery 274 is attached to the transmitting / receiving terminal device 20, the CPU 262 sets R
The communication program stored in the OM 263 is executed. First, in step 10, it is determined whether or not user ID information has been input.
Step 10 is repeated to wait for the input of the user ID information. That is, the transmitting / receiving terminal device 20 does not perform communication unless user ID information is input. Here, the user
The transmitting / receiving terminal device 20 is mounted on the data display / creating device 30, and user ID information is input using the display device 31 and the input keys 32. When the user ID information is entered,
Proceed to step 11, and thereafter from step 11 to step 15
repeat. Specifically, in step 11, a transmission subroutine shown in FIG. 11 described later is executed. Subsequently, in step 12, a reception subroutine shown in FIG. 12 described later is executed. In step 14, the SRAM
Of the e-mails and the like stored in 267, those whose expiration date has expired are deleted. In step 15,
Time waiting processing is performed. This is to increase the duration of the battery 274 by reducing the current consumption by taking an interval between transmission and reception.

The transmitting / receiving terminal device 20 repeats steps 11 to 15 until the life of the battery 274 has expired.
However, when the display / creation device is mounted, the CPU 262 is in a non-operation state, and the CPU 35 executes a data display / creation program shown in FIG. When the display / creating device is removed again, the CPU 262 operates,
After step 10, the operations of steps 11 to 15 are repeated.

Referring to FIG. 11, details of the transmission subroutine will be described. In the transmission subroutine, the reception data area 2 in the SRAM
01 stored in the storage unit 01 and a new creation subroutine of a display and creation program shown in FIG.
The data stored in the self-transmission data area 202 in the RAM 267 is transmitted. First, in step 111, whether or not there is data to be transmitted,
It is determined whether there is an e-mail or the like in the reception data area 201 (excluding the e-mail addressed to the user) and the self-transmission data area 202 (excluding the received direct mail) in M267. If there is no data to be transmitted, the transmission subroutine ends and the process returns to the main routine. If there is data to be transmitted, the process proceeds to step 112, where a preamble signal is transmitted. In step 113, the process waits for the response signal, and after the process, proceeds to step 114. In step 114, it is determined whether the received signal is a response signal based on the signal type included in the received signal, and a sum check is performed to determine whether the received signal is correct. If the received signal is not a response signal or an incorrect signal, the process proceeds to step 119. If the response signal is a correct signal, the process proceeds to step 115, where it is determined whether or not the response is to the own preamble signal based on the transmitting / receiving terminal device 1ID and the transmission data information included in the response signal. If the response is not to the own preamble signal, the process proceeds to step 119. If the response is to the own preamble signal, in step 116, the data is transmitted at a transmission timing based on the timing information included in the response signal. In step 117, it is determined whether the transmitted data is a direct mail. If it is a direct mail, in step 118, a received flag is set in the self-transmission data area 202 in the SRAM 267. If it is not a direct mail, go to step 119. In step 119, it is determined whether there is any other data to be transmitted. If there is another data, the process returns to step 112. If not, the transmission subroutine ends and the process returns to the main routine.

The reception subroutine will be described in detail with reference to FIGS. In the reception subroutine, in step 121, it is determined whether or not a write area remains in the reception data area 201 in the SRAM 267. If not, the receiving subroutine ends and the process returns to the main routine. If it remains, reception is performed in step 122. If there is no reception, the reception subroutine ends and returns to the main routine. If a signal has been received, it is determined in step 123 whether the received signal is a preamble signal, and a sum check is performed to determine whether the received signal is correct. If the received signal is not a preamble signal or an incorrect signal, the receiving subroutine ends and the process returns to the main routine. If the signal is a preamble signal and is a correct signal, it is determined in step 124 whether or not to receive data as described later in detail with reference to FIG. If the data is not data to be received, the receiving subroutine ends and the process returns to the main routine. If the data is to be received, a response signal is transmitted in step 125, and in a subsequent step 126, it is received at a timing based on the timing information included in the response signal. In step 127, it is determined whether or not the received signal is a data body signal, and a sum check is performed to determine whether or not the received signal is correct. If the received signal is not a data signal or a correct signal, the receiving subroutine is terminated and the process returns to the main routine. If the signal is a data body signal and is a correct signal, the process proceeds to step 128, where the data is transferred to the reception data area 201 in the SRAM 267.
And returns to the main routine after terminating the receiving subroutine.

Referring to FIG. 13, determination of whether or not to receive in step 124 of the receiving subroutine will be described in detail. First, in step 1241, it is determined whether or not the data to be transmitted is news based on the transmission data information included in the preamble signal. If it is news, the process proceeds to step 1247. If it is not news, the process proceeds to step 1242, and it is determined whether or not it is a direct mail. If it is a direct mail, it is determined in step 1243 whether or not the destination is yourself.
Proceed to step 1247. Otherwise, it is determined that the data is not data to be received. If it is determined in step 1242 that the mail is not a direct mail, step 1
At 244, it is determined whether or not the data is an indirect mail. If not, it is determined that the data is not data to be received. If it is an indirect mail, it is determined in step 1245 whether or not the destination is yourself. If it is yourself, the flow proceeds to step 1247. If not, step 124
Then, it is determined whether the destination is listed in the address book data (step 6). If it is listed in the address book data,
Proceed to step 1247. If the data is not listed in the address book data, it is determined that the data is not data to be received. In step 1247, it is determined whether or not the same data exists in the reception data area 201 or the self transmission data area 202 in the SRAM 267. Specifically, the determination is made by comparing the transmission data information included in the preamble signal with the transmission data information of the data stored in the SRAM 267. If it is determined in step 1247 that the data does not have the same data, it is determined that the data is data to be received. If it is determined that the data has the same data, it is determined that the data is not data to be received.

FIG. 14 is a flowchart of the main routine of the display / creation program. FIG. 15 is a flowchart of a new transmission subroutine in the flowchart of the main routine. 16 to 18 show examples of the execution screen of this program. Next, FIG. 14 to FIG.
8, the operation at the time of displaying and creating data of this embodiment will be described.

When the data display / creation device 30 is attached to the transmission / reception terminal device 20, the CPU 262 becomes inactive, and the CPU 35 executes a display / creation program stored in the ROM 266 and shown in FIGS. FIG. 16 is an example of a screen displayed first when the data display / creating device is mounted. Here, a list of received data is displayed. In FIG. 16, the selection cursor 44 is moved by an up / down input of the input key 32a. When the data does not fit in one screen, the list display 40 scrolls when the cursor 44 reaches the upper and lower ends. Any one of the content display button 41, the new transmission button 42, and the self transmission mail display button 43 is selected (black and white reverse display), and the selection can be changed by inputting the input key 32a in the left and right direction. Select these buttons and enter
By pressing b, a content display screen as shown in FIG. 17, a new transmission screen as shown in FIG. 18, and a self-transmission mail display screen are respectively displayed. The self-sent mail display screen is substantially the same as that in FIG.

In the display / creation program, first, in step 131, it is determined whether or not user ID information has been input. If not, step 132
Requires input of user ID information. If the input has been completed, the process proceeds to step 133. In step 133, a received data list display screen as shown in FIG. 16 is displayed. If it is determined in this screen that the content display button 41 has been pressed in step 134, a content display screen as shown in FIG. 17 is displayed in step 135. In step 136, a new transmission button 4
If it is determined that 2 has been pressed, a new transmission subroutine shown in FIG. If it is determined in step 138 that the self-sent mail display button 43 has been pressed, the process proceeds to step 1
At 39, a self-sent mail display screen substantially similar to that of FIG. 16 is displayed.

The contents display screen will be described with reference to FIG. On the content display screen, select cursor 4 on the list display screen.
The contents of the data specified in step 4 are displayed. The content of the data is displayed in the content display area 50. If the data does not fit on one screen, the content display area 50 is displayed using the input keys 32a.
Scroll by up / down input. One of the "Reply to this mail" button, the "Forward this mail" button, and the "Return to received mail list" button is selected, and the selection can be changed by inputting the input key 32a in the left-right direction. Select these buttons and enter
Each process is performed by pressing b.

The new transmission subroutine will be described with reference to FIGS. In the new send subroutine,
Create a new e-mail to be sent. FIG. 18 is an example of a display screen. In FIG. 18, the new transmission screen is divided into upper and lower parts, and the upper half is a creation area 60 in which an e-mail or the like being created is displayed. In the lower half, a so-called software keyboard 61 is displayed. Each key in the software keyboard 61 is selected by the input key 32a. The key being selected is displayed in reverse black and white. By pressing the input key 32b, a character corresponding to the key being selected is displayed at the cursor position in the creation area 60. By repeating this operation, an electronic mail or the like is created. When the creation of the e-mail or the like is completed, the transmission button 62 is selected with the input key 32a and the input key 32
Press b. Then, input of a destination, a data type, a mode type, and an expiration date is requested, and the transmission data information is created by adding creation date and time and creator user ID information to these input data. Data body and transmission data information are SR
It is stored in the self transmission data area 202 in the AM 267. The stored data is automatically transmitted in the transmission subroutine of the communication program after the data display / creation device 30 is removed.

In the new creation subroutine, first, at step 140, it is determined whether or not a write area remains in the self transmission data area 202 in the SRAM 267. If not, the new transmission subroutine is terminated and the main routine is terminated. Return to If so, in step 141, new transmission data is created by the software keyboard as described above. Upon completion of the creation, in step 142, input of transmission data information (destination, data type, mode type, expiration date) is requested. In the following step 143, a creation date and creator ID information are added to the transmission data information. In step 144, the data body and the transmission data information
Stored in the self transmission data area 202 in M267,
The new creation subroutine ends and returns to the main routine.

The transmitted / received data can be transmitted / received not only for electronic mail or news but also for image data, audio data, game data, and the like. In this case, not only the e-mail and the news can be distinguished by the data type of the transmission data information, but also the other data as described above can be distinguished. Game data is
For example, character data and item data that are not stored in advance in a game program ROM (including a semiconductor ROM and a CD-ROM) can be used.
Further, by removing the reception function of the transmission / reception terminal device 20 and attaching a terminal device having only the transmission function to, for example, a Takkyubin truck, data can be spread over a wider range.

FIG. 19 is an image diagram of a fixed data generation / transmission device according to another embodiment of the present invention. In the above-described embodiment, data created by connecting the data display / creation device 30 is transmitted and received between the transmission / reception terminal device 20. In contrast, the fixed type data creation and
The transmitting device can create more complex data,
Send the created data. The transmitted / received terminal device A receives the transmitted data, and the transmitted / received terminal device A further transmits the data to the transmitted / received terminal device B.

FIG. 20 is an external view and a block diagram of a fixed data creation / transmission device. 20, the fixed data creation / transmission device 70 includes a display device 71, a personal computer 72, a communication unit 76, and an input device. The input device includes a keyboard 73, a scanner 74, and a microphone 75. Further, a digital camera or the like may be used. By preparing various input devices, complicated data can be created. The personal computer 72 includes a hard disk 721. The hard disk stores a data creation program and a data transmission program in advance, and further stores the created data. The data creation program and the data transmission program are substantially the same as those in the above-described embodiment, and thus will be omitted. Keyboard 73, scanner 74, microphone 7
5, etc., and data is created.
1 is stored. Then, the data of the hard disk 721 is read and transmitted through the communication unit 76.

The fixed type data creating / transmitting apparatus of this embodiment is installed in a store such as a supermarket, for example.
It is used to transmit discount information and product details, or to be installed at event venues to transmit guidance information. The fixed data creation / transmission device of the present embodiment is not limited to a device using a personal computer, but may be a dedicated device.

[Brief description of the drawings]

FIG. 1 is an illustrative view for explaining a transfer principle of transmission / reception data of the present invention;

FIG. 2 is an external view of a portable data transmission / reception terminal device configured by combining a memory cartridge and a data display / input device according to an embodiment of the present invention.

FIG. 3 is a diagram showing a state in which a memory cartridge is mounted on a data display / input device.

FIG. 4 is an external view of a portable data transmitting / receiving terminal (integrated type) according to another embodiment of the present invention.

FIG. 5 is a block diagram of the cartridge of the embodiment shown in FIG. 2;

FIG. 6 is a block diagram of a data display / creation apparatus according to the embodiment shown in FIG. 2;

FIG. 7 is a memory map of an SRAM in the cartridge according to the embodiment of FIG. 2;

FIG. 8 is a diagram showing an outline of a procedure for transmitting and receiving data.

FIG. 9 is a diagram showing a format of communication data.

FIG. 10 is a flowchart of a main routine of a communication program.

FIG. 11 is a flowchart of a transmission subroutine.

FIG. 12 is a flowchart of a reception subroutine.

FIG. 13 is a flowchart showing details of a determination as to whether or not to receive a reception subroutine.

FIG. 14 is a flowchart of a main routine of a display / creation program.

FIG. 15 is a flowchart of a new transmission subroutine.

FIG. 16 is an example of a received data list display screen.

FIG. 17 is an example of a content display screen.

FIG. 18 is an example of a new transmission screen.

FIG. 19 is a diagram illustrating another embodiment of the present invention.
It is an external view of a transmission device.

FIG. 20 is a block diagram of a fixed data creation / transmission device according to the embodiment in FIG. 19;

[Explanation of symbols]

 10: Portable data transmission / reception terminal device 20: Cartridge 30: Data display / input device

Claims (7)

[Claims] 1. A communication means for automatically wirelessly communicating with another terminal device, a temporary storage means for storing at least received data, a display means for displaying at least received data, and a communicable area of the communication means. Automatically transmitting the data stored in the temporary storage means to other terminal devices present in, and automatically receiving data transmitted from other terminal devices in the communicable area A portable data transmission / reception terminal device, comprising: processing means for storing the received data stored in the temporary storage means and displaying the received data stored in the temporary storage means on the display means. 2. The apparatus further comprises input means for creating data to be transmitted, wherein the processing means writes the transmission data input by the input means into the temporary storage means and transmits the written transmission data. 2. The portable data transmission / reception terminal device according to claim 1, wherein: 3. The portable data transmission / reception terminal device according to claim 1, wherein the transmission data transmitted by said communication means includes destination information for specifying another terminal device and character information to be transmitted. 4. An apparatus according to claim 1, further comprising identification information storage means for storing identification information for specifying the terminal device, wherein the transmission data transmitted by the communication means of a certain terminal device is:
Including destination information, processing means of another terminal device that has received the transmission data,
The method according to claim 1 or 2, wherein when it is determined that the received destination information has a predetermined relationship with the identification information stored in the identification information storage means, received data is stored in the temporary storage means. The portable data transmitting / receiving terminal device according to claim 2. 5. The terminal device further comprising a desired terminal specifying information storage unit for storing identification information of a specific other terminal device desired to be received among transmission data transmitted by one or more other terminal devices, The processing means stores the received data in the temporary storage means when the destination information matches at least one of the identification information of the terminal device desiring reception stored in the desired terminal specifying information storage means. The portable data transmission / reception terminal device according to claim 1 or 2, wherein 6. A portable communication system comprising a portable data terminal device and a cartridge detachable from the portable data terminal device, wherein the portable data terminal device displays at least received data. Display means, and first
Communication means for automatically wirelessly communicating with another terminal device, a temporary storage means for storing at least received data,
And second processing means, wherein the first processing means causes the display means to display the received data stored in the storage means, and wherein the second processing means has a communication area with the communication means. Automatically transmits the data stored in the temporary storage means to the other terminal devices existing in, and transmits the data transmitted from the other terminal devices having a predetermined relationship existing in the communicable area. A portable communication system characterized by automatically receiving and storing in a temporary storage means. 7. The cartridge automatically transmits the data stored in the temporary storage means to the second processing means to another terminal device existing in the communicable area of the communication means. And a writing program for automatically receiving data transmitted from another terminal device having a predetermined relationship in the communicable area and storing the data in the temporary storage means, and reception data stored in the temporary storage means. 6. The portable communication system according to claim 5, further comprising: a program storage unit configured to store a display control program for causing the display unit to display a message.