JP2002197033A - Communication terminal device with e-mail receiving function - Google Patents

Abstract

(57) [Summary] [Problem] An e-mail from a necessary sender can be automatically and simply and reliably received without performing a special operation, while avoiding a shortage of memory capacity and receiving unnecessary mail. To do. SOLUTION: A transmission source identification information storage unit 13 of a storage unit 13 is provided.
b, the mail address of the sender who wants to receive the mail automatically is registered in advance, and when a mail arrival notification arrives from the mail server SV, the sender's mail address included in the arrival notification is identified by the sender identification. Information storage unit 13b
To the sender's email address stored in Then, when the matching transmission source mail address is stored in the storage unit 13b, a download request is transmitted to the mail server SV to automatically download the text and the attached file and display the same on the display unit 15. It was made.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device such as a personal computer, a personal digital assistant, and a mobile phone, and more particularly to a function of receiving an electronic mail such as an Internet mail or a mail unique to a communication carrier. The present invention relates to a communication terminal device.

[0002]

2. Description of the Related Art In general, in a conventional e-mail distribution service system, an e-mail transmitted from a terminal device on a transmission side is received and temporarily stored in a mail server, and then the e-mail is composed from the mail server. The header information, the text, and the attached data are downloaded as a set to the destination terminal device.

However, when such an electronic mail distribution service is used, the entire text of the electronic mail is unconditionally downloaded to the terminal device on the receiving side irrespective of the text of the electronic mail and the data amount of the attached file. For this reason, depending on the memory capacity of the terminal device on the receiving side, the memory may quickly become full. This is a serious problem especially in a portable terminal such as a portable telephone having only a relatively small amount of memory. Further, even if the content of the e-mail text or the attached file is an unnecessary advertisement or malicious data, it is unconditionally received. In such a case, the user on the receiving side has to bear the communication fee for downloading the unnecessary e-mail, which causes a great disadvantage, which is not preferable.

On the other hand, as another e-mail distribution service system, for example, IMAP4 (Internet Message Access Pro
As in the method called tocol-Version4), the mail server splits and downloads the header information, body, and attachments, which are the components of the email, according to the download format requested by the receiving terminal device. There is a method that was. If such a method is adopted, the receiving terminal device selectively receives the components of the e-mail in consideration of the memory capacity and the like, for example, receiving only the header information or only the header information and the text. It is possible to do.

However, using such a method, the user on the receiving side must manually request download of all e-mails addressed to him / her and specify the contents of the download. For this reason, the operation of receiving the e-mail becomes extremely complicated.

[0006]

As described above, in the conventional e-mail delivery service system, the entire text of the e-mail is unconditionally downloaded regardless of the data amount or data contents, so that the memory capacity becomes insufficient. Unnecessary mail download is inevitable. Also, in other e-mail distribution service methods, the user on the receiving side has to manually request download of all e-mails addressed to the user and specify download contents, so that operations related to e-mail reception are not performed. There is a problem that it becomes extremely complicated.

The present invention has been made in view of the above circumstances. It is an object of the present invention to avoid the occurrence of insufficient memory capacity and the reception of unnecessary mail, and to provide a special method for an electronic mail from a necessary sender. It is an object of the present invention to provide a communication terminal device having an e-mail receiving function, which can easily and surely receive data automatically without performing an operation and ensures good operability.

[0008]

In order to achieve the above object, the present invention divides an electronic mail transmitted from a transmission source into a plurality of components and selectively downloads them to a destination communication terminal device. In the communication terminal device used by connecting to a mail server having a function, first sender identification information for identifying a desired mail sender is stored in advance in the sender storage means, When a specific component including the source identification information among a plurality of components constituting the electronic mail addressed to the server from the server arrives, the second source identification information included in the specific component is changed. The first transmission source identification information stored in the transmission source storage unit is collated by the collation unit. If the second sender identification information matches or does not match the first sender identification information as a result of the comparison, the automatic mail reception control means sends a download request to the mail server. Then, an electronic mail including the attached file and addressed to itself is obtained.

[0009] More specifically, the collating means extracts the second sender identification information from the mail arrival notification coming from the mail server, and stores the extracted second sender identification information in the sender storage means. Is compared with the first transmission source information.

[0010] Therefore, according to the present invention, with respect to an e-mail from a sender registered in advance, the entire text including the attached file can be automatically received without any operation by the receiving user. The complication in the operation of the user is eliminated. On the other hand, with regard to e-mails from general senders, the entire text will not be downloaded unconditionally, and if the memory capacity is small, this limited memory capacity can be used more effectively, Further, it is possible to avoid a problem that unnecessary advertisements and malicious data are unconditionally received.

[0011] Further, the present invention is characterized in that when the mail arrival notification from the mail server does not include the second transmission source identification information, the verification means requests the mail server to download the header information. The second sender identification information is extracted from the header information downloaded from the mail server in response to the download request, and the second sender identification information is stored in the first sender information stored in the sender storage unit. It is also characterized by having a function of collating with.

[0012] By doing so, automatic mail reception according to the present invention can be performed even when the sender identification information is not included in the mail arrival notification. That is, depending on the system configuration and the type of the sender identification information, the sender identification information may not be displayed in the mail arrival notification. However, according to the above configuration, when the sender identification information is not included in the mail arrival notification, the header information is automatically downloaded from the mail server in response to the download request from the terminal device, and the header information is included in the header information. Collation can be performed based on the described source identification information.

Further, according to the present invention, when the second sender identification information does not match the first sender identification information as a result of the matching by the matching means, whether or not to request downloading of the e-mail is determined. Is notified to the user, and when the user performs an operation for requesting a download in response to the notification, a download request is sent to the mail server to receive an electronic mail addressed to the user. And

[0014] In this way, the receiving user can surely know the arrival of the e-mail from the general sender and, if necessary, download the e-mail by manual operation and receive it if necessary. can do. For this reason, even if it is an e-mail from a general sender, the e-mail can be received as quickly as necessary without ignoring all of the e-mail. In addition, there is no fear that the entire e-mail including the attached file is unconditionally downloaded without the permission of the recipient.

Further, according to the present invention, when the communication terminal device is provided with an address storage means for storing a list of sender identification information, a plurality of sender identification information stored in the address storage means are stored. Among them, a sender identification information corresponding to a desired mail sender is added with a reception permission identifier and stored. Then, when a specific component of the electronic mail addressed to itself arrives from the mail server in the matching means, a reception permission identifier is added from the plurality of sender identification information stored in the address storage means. The sender identification information included in the specific component is compared with the selected sender identification information.

In this way, for example, when the terminal device already has a transmission / reception history and an address book, it is possible to register a sender who wants to automatically receive a mail by using such information. It becomes possible. Therefore, it is not necessary to provide a new storage unit dedicated to transmission source identification information, so that the capacity of the management memory can be saved and the memory can be used effectively.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of a mobile communication network system to which a portable terminal, which is an embodiment of a communication terminal device according to the present invention, is connected.

In the service area covered by the system, a plurality of base stations BS1 to BSn are distributed and arranged, and these base stations BS1 to BSn each form a radio zone called a cell. Also, the base stations BS1 to BS
n is connected to the mobile communication network NW via a wired line. This mobile communication network NW is connected to a computer network such as a wired communication network or the Internet (not shown).

The portable terminals MS1, MS2,...
The base stations BS1 to BSn are further connected to the mobile communication network NW. By being exchanged and controlled by the mobile communication network NW, the mobile communication network NW is connected to another portable terminal in the system or another wired terminal connected to the wired communication network, and for example, a call can be made between these terminals. Becomes

The mobile communication network NW has an Internet mail delivery service function for providing an electronic mail delivery service in addition to the above exchange control function. This Internet mail distribution service function is provided by the mobile terminal MS.
.. Transfer and distribute electronic mails (e-mails) as transmission sources or destinations via the Internet according to the TCP / IP protocol, and include a mail server SV for distribution of the electronic mails. .

The mail server SV receives and temporarily stores the e-mail sent from the transmitting terminal, and distributes the e-mail to the destination portable terminal according to the protocol specified by IMAP4. The IMAP 4 divides the header information, the body, and the attached file, which are the components of the e-mail, according to the download format requested by the destination portable terminal, and downloads the components by arbitrarily combining these components.

As the combination pattern of the download, for example, the header information, the body, and the attached file are downloaded according to separate download requests after the notification of the arrival of the mail, and the header information is first downloaded according to the download request after the notification of the arrival of the mail. Then, the body and attached file are downloaded together in response to another download request, and the header information and body text are downloaded in response to the download request after the mail arrival notification, and then attached in response to another download request Some download files. In addition,
It is also possible to divide a plurality of elements constituting the header information and selectively download them in response to a download request.

Incidentally, the portable terminals MS1, MS2,
... is constituted as follows. FIG. 2 is a block diagram showing the functional configuration. Radio frequency signals transmitted from the base stations BS1 to BSn are received by the antenna 1 and then input to the receiving circuit (RX) 3 via the antenna duplexer 2 (DUP). In the receiving circuit 3, the radio frequency signal is mixed with the receiving local oscillation signal output from the frequency synthesizer (SYN) 4 and frequency-converted into an intermediate frequency signal. Note that the frequency of the reception local oscillation signal generated from the frequency synthesizer 4 is specified by a control signal SYC from the control unit 12.

The reception intermediate frequency signal is subjected to despreading processing by a spreading code (PN code) assigned to a reception channel in a CDMA signal processing unit 6, and then subjected to quadrature demodulation corresponding to, for example, a QPSK modulation method. Thus, the data is converted into demodulated data in a predetermined format according to the data rate. The converted demodulated data is input to the compression / decompression processing unit 7.

The compression / expansion processing unit 7 performs an expansion process on the demodulated data output from the CDMA signal processing unit 6 according to the reception data rate notified from the control unit 12, and then uses Viterbi decoding or the like. The decoding process and the error correction decoding process are performed to reproduce baseband received voice data or received packet data. The received voice data is output to the PCM code processing unit 8 and the received packet data is output to the control unit 12.

The PCM code processing section 8 includes a compression / decompression processing section 7
PCM decodes the received voice digital data output from, and outputs an analog reception signal. This analog reception signal is amplified by the reception amplifier 9 and then output from the speaker 10 as loudspeaker.

The control unit 12 depackets the received packet data output from the compression / decompression processing unit 7 and stores it in the storage unit 13, and reads out the display unit from the storage unit 13 according to the display operation of the user by the input unit 14. 15 is displayed. When a personal computer such as a personal digital assistant (PDA) or a notebook personal computer is connected to the mobile terminals MS1, MS2,... The data may be output to the personal computer via the personal computer.

On the other hand, at the time of voice communication, the input voice signal of the speaker input to the microphone 11 is transmitted to the transmission amplifier 1.
After being amplified to an appropriate level by the PCM 8, the PCM code processing section 8 performs PCM coding processing, and inputs it to the compression / decompression processing section 7 as transmission audio data. Control unit 1
The packet data such as the e-mail created in step 2 is input from the control unit 12 to the compression / decompression processing unit 7.

At the time of voice communication, the compression / decompression processing unit 7
The energy amount of the input voice is detected from the transmission voice data output from the CM code processing unit 8, and the data rate is determined based on the detection result. Then, the transmission audio data is compressed into a signal having a format corresponding to the data rate, further subjected to an error correction coding process, and then subjected to CDMA.
Output to the signal processing unit 6. On the other hand, at the time of packet data transmission, the transmission packet data output from the control unit 12 is subjected to error correction coding processing and output to the CDMA signal processing unit 6.

The CDMA signal processing unit 6 performs, for example, QPSK modulation on the carrier signal using the transmission data compressed by the compression / decompression processing unit 7, and applies a PN code assigned to each transmission channel to the modulated carrier signal. To perform a spread spectrum process. The spread-coded transmission signal is output to a transmission circuit (TX) 5.

The transmission circuit 5 synthesizes the spread-coded transmission signal with a transmission local oscillation signal generated by the frequency synthesizer 4 and frequency-converts the signal into a radio frequency signal. Then, based on the transmission data rate notified by the control unit 12, the transmission circuit 5 amplifies only the effective portion of the radio frequency signal at a high frequency and outputs it as a transmission radio frequency signal. The transmission radio frequency signal output from the transmission circuit 5 is supplied to the antenna 1 via the antenna duplexer 2,
The signal is transmitted from the antenna 1 to the connected base station.

The input unit 14 is provided with a key group such as a dial key, a transmission key, a power key, an end key, a volume adjustment key, and a mode designation key. Also, the display unit 15
An LCD display and an LED lamp are provided. LCD
The display displays the telephone number of the terminal of the communication partner, the operation status of the terminal itself, the transmitted / received mail, and the like. Also LE
The D lamp is used to indicate the discharge state of the battery 16. Reference numeral 17 denotes a power supply circuit which generates a predetermined operation power supply voltage Vcc based on the output of the battery 16 and supplies it to each circuit section.

The storage unit 13 includes a received mail storage unit 13a and a sender identification information storage unit 13b in addition to an address book and a data storage unit for voice recording / reproduction. Among them, the received mail storage unit 13a is used to store the received electronic mail addressed to itself. The transmission source identification information storage unit 13b is used to store transmission identification information of a specific sender who desires automatic reception of mail. As the transmission source identification information, for example, a mail address and / or a telephone number of the transmission source are used.

The control unit 12 has a microprocessor as a main control unit. The control functions include a communication link control function for establishing a communication link with a base station in response to an outgoing / incoming call, and a control function for recording / reproducing the voice of the other party using the storage unit 13 during voice communication. In addition to a normal control function such as a mail manual reception control function in which a receiving user manually downloads an electronic mail, a sender collation function 12a is a new function according to the present invention.
And a mail automatic reception control function 12b and an inquiry display control function 12c.

The sender collation function 12a is a mail server S
When a mail arrival notification arrives from V, the sender identification information included in the mail arrival notification is transmitted to the sender identification information of the specific sender stored in advance in the sender identification information storage unit 13b of the storage unit 13. It is collated with the information to determine whether there is any matching information. If the sender identification information is not included in the mail arrival notification, the mail server SV
, A header information download request is transmitted to the request, and in response to the request, the sender identification information is extracted from the header information sent from the mail server SV, and the above-mentioned collation is performed.

The mail automatic reception control function 12b, when the sender identification information that matches the received sender identification information is stored as a result of the collation by the sender collation function 12a, sends the server SV the address addressed to itself. A request is made to download an undelivered component of the e-mail, that is, the body and the attached file, and the mail server S
The text and attachments downloaded from V
It is stored in the received mail storage unit 13a of the storage unit 13 together with the header information received earlier.

The inquiry display control function 12c, when the sender identification information matching the received sender identification information is not found in the storage unit 13b as a result of the collation by the sender collation means 12a, sends the e-mail text and the attached A message is displayed on the display unit 15 for asking the user whether to immediately download the file.

Next, the portable terminal M configured as described above
The automatic mail reception control operation by S1, MS2,... Will be described. FIG. 3 is a flowchart showing the control procedure and contents, and FIG. 4 is a sequence diagram showing a signal transmission procedure between the transmitting terminal, the mail server and the receiving terminal.

Prior to receiving the mail, each mobile terminal MS1,
In MS2,..., Each user registers the mail address of the sender who wants to receive the mail automatically in the sender identification information storage unit 13b of the storage unit 13. This registration is
In a state where the control unit 12 is set to the sender registration mode by a key operation of the input unit 14, the input unit 14 is used to input a mail address of a sender who wants to automatically receive a mail. FIG. 5 shows an example of the registration result.

Now, it is assumed that an electronic mail is transmitted from the portable terminal MS1 to the portable terminal MS2. The user of the mobile terminal MS1 inputs his / her own source address, destination mail address, business message, and the like as header information by key operation of the input unit 14, creates an e-mail text, and further, for example, a still image of his / her face Attach data and audio data defined as a ringtone for the user as an attached file. Then, this e-mail is transmitted.

Then, the e-mail is transferred to the mail server SV via the base station BS1 and the mobile communication network NW as shown in FIG. 1, received by the mail server SV, and temporarily stored. When an e-mail arrives, the mail server SV first sends a mail arrival notification to the destination portable terminal MS2 based on the destination e-mail address described in the header information of the e-mail, as shown in FIG. .

On the other hand, in the standby state, the destination portable terminal MS2 monitors the arrival of the mail arrival notification in step 3a as shown in FIG. 3 while monitoring the incoming call. In this state, when the mail arrival notification arrives, the sender identification information, that is, the mail address of the transmission source in this case, is extracted from the mail arrival notification.

However, depending on the configuration of the system and the type of sender identification information to be used, the sender identification information may not be included in the mail arrival notification. Therefore, the mobile terminal MS
In step 3b, the control unit 12 determines whether or not the sender identification information is included in the mail arrival notification. If not, the control unit 12 requests the mail server SV to acquire header information in step 3c. That is, a download request is transmitted. When the header information is downloaded from the mail server SV in response to the download request, the header information is received in step 3d, and the sender identification information is extracted from the header information.

After extracting the transmission source identification information, the control unit 12 of the portable terminal MS2 next transmits the image data or audio data to the attached file based on the mail arrival notification or the contents of the header information in step 3e. It is determined whether the inserted mail is a specific mail called a photo mail or the like. If it is not a specific mail, the process shifts to a normal mail manual reception control operation of downloading an electronic mail according to a user's manual operation.

Now, it is assumed that the target electronic mail is a photo mail. Then, the control unit 12 of the mobile terminal MS2 determines that the electronic mail is to be automatically downloaded, and proceeds to step 3f, where the transmission source mail address previously extracted from the mail arrival notification or the header information is stored in the storage unit 13 Is compared with the source mail address stored in the source identification information storage unit 13b.

As a result of this comparison, if it is determined that the sender identification information storage unit 13b stores a sender mail address that matches the sender mail address extracted from the mail arrival notification or the header information, the process proceeds to step 3j. Then, a request for downloading the body of the e-mail addressed to itself and the attached file is transmitted to the server SV. In response to the download request, when the body and attached file of the electronic mail addressed to itself are downloaded from the mail server SV, the body and the attached file are received, and the received body information and the attached header information are stored in the storage unit 1.
3 in the received mail storage unit 13a. At the same time, the stored text and attached file are read out and displayed on the display unit 15 in step 3k.

At this time, the display order is set, for example, such that the attached file is displayed first, and then the text is displayed after a certain period of time or according to the operation of the user. In this way, in the case of a photo mail, the face image data of the sending user inserted in the attached file is displayed first, so that the receiving user can immediately recognize the sending user with this face image. Become.

When audio data uniquely determined by the transmitting user is inserted in the attached file, the audio data is reproduced and output as a ringing melody from a speaker or a sounder instead. For this reason, the receiving user can immediately recognize the transmitting user based on the incoming melody.

On the other hand, it is assumed that as a result of the comparison in step 3g, the sender identification information storage unit 13b does not store the sender email address that matches the sender email address extracted from the mail arrival notification or the header information. In this case, the control unit 12 of the mobile terminal MS2 generates a message for inquiring the receiving user whether or not to download the text of the e-mail and the attached file immediately in step 3h, and causes the display unit 15 to display the inquiry message. . When displaying the inquiry message, a sound indicating that the inquiry message has been displayed may be simultaneously generated.

While the inquiry message is being displayed, the control unit 12 monitors the operation by the receiving user in step 3i. If the receiving user inputs a request for immediate download of the e-mail within a certain period of time after the start of the display of the inquiry message, the control unit 12 proceeds to step 3j, and as described above, proceeds to step 3j. Then, download control of the attached file is executed, and furthermore, display control of the text of the downloaded e-mail and the attached file is executed in step 3k.

If the receiving user inputs that he does not want to download the e-mail immediately or does not perform any operation within a certain period of time after the display of the inquiry message is started, the control unit 12 normally operates. To the mail manual reception control operation.

As described above, in this embodiment, the mail address of the sender who wants to automatically receive a mail is registered in advance in the sender identification information storage unit 13b of the storage unit 13, and the mail is received from the mail server SV. When the notification arrives, the sender's mail address included in the incoming call notification is compared with the sender's mail address stored in the sender identification information storage unit 13b. Then, when the matching transmission source mail address is stored in the storage unit 13b, a download request is transmitted to the mail server SV to automatically download the text and the attached file and display the same on the display unit 15. I have to.

Therefore, according to this embodiment, for the e-mail from the sender registered in advance, the body and the attached file can be automatically received without any operation by the receiving user. The complication in the operation of the user is eliminated. On the other hand, with regard to e-mails from general senders, the entire text will not be downloaded unconditionally, and if the memory capacity is small, this limited memory capacity can be used more effectively, Further, it is possible to avoid a problem that unnecessary advertisements and malicious data are unconditionally received.

In the case where the mail arrival notification from the mail server SV does not include the sender identification information,
A request to download the header information of the e-mail is sent to the mail server SV.
The sender identification information included in the header information downloaded from V is checked against the sender mail address stored in the sender identification information storage unit 13b.

Therefore, depending on the system configuration and the type of the sender identification information, the sender can be verified even when the sender identification information is not included in the mail arrival notification. Automatic download of attached files can be performed.

Further, as a result of collation of the source mail addresses, if a matching transmitted mail address is not found, the user is inquired as to whether or not to immediately download the body of the e-mail and the attached file. In response to this inquiry, when the receiving user inputs that he / she wants to download the e-mail immediately, the download control of the text and the attached file is executed, and the display control of the downloaded text and the attached file is executed. I have.

[0057] Therefore, the receiving user can also receive e-mail from a sender whose sender mail address is not registered.
It can be automatically downloaded and displayed as needed without ignoring it.

The present invention is not limited to the above embodiment. For example, in the embodiment, the storage unit 13
Is provided with a sender identification information storage unit 13b, and a sender email address of a sender who desires automatic reception of mail is registered in the sender identification information storage unit 13b. However, a transmission / reception history and an address book are already provided in the storage unit 13. In such a case, a sender who wishes to receive an e-mail automatically may be registered using these address data.

FIG. 6 shows an example of the registration method.
A field for writing an automatic reception flag F is provided in the address book, and the automatic reception flag F is stored in a field of a sender who desires automatic reception of mail among a plurality of senders registered in the address book.

In this way, since the existing transmission / reception history and address book can be used, the transmission source identification information storage unit 13b can be omitted, and the storage unit 1 can be used accordingly.
3 can be effectively used.

Further, in the above-described embodiment, a specific mail called a photo mail in which image data or audio data is inserted into an attached file has been described as an example of an electronic mail to be automatically downloaded. It may be a normal e-mail into which a table or drawing data is inserted.

Further, in the above-described embodiment, Internet mail is described as an electronic mail. However, the present invention can be similarly applied to other types of electronic mail. For example, some systems have a message notification service function unique to a communication carrier. This message notification service function is called a short message service or the like. By using a message server connected to the network of the carrier, the length of a message that can be transmitted between mobile terminals subscribing to its own network is Saga transfers text messages shorter than Internet mail in accordance with the carrier's proprietary protocol.
In this case, the present invention can be implemented by providing the message server with a function of dividing and downloading each component of the message following a mail arrival notification such as IMAP4.

In the above embodiment, the mail address of the sender who wants to receive the mail automatically is registered in advance. However, on the contrary, register the e-mail address of the sender who does not want to receive e-mail automatically,
If the sender identification information is not found in the registered e-mail address when the e-mail is received, the body and the attached file may be automatically downloaded.

Further, in the above-described embodiment, the portable terminal MS1, MS2,... Such as a portable telephone has been described as an example of the communication terminal device. However, if the communication terminal has an electronic mail receiving function, the portable information terminal (PDA: Personal Dig
The present invention is also applicable to ital Assistance) and notebook personal computers.

In addition, the type and configuration of the communication terminal device,
The type of the e-mail, the procedure and contents of the automatic e-mail reception control, and the like can be variously modified without departing from the scope of the present invention.

[0066]

As described above in detail, the present invention has a function of dividing an e-mail transmitted from a transmitting terminal device into a plurality of components and selectively downloading them to a receiving terminal device. In a terminal device connected to a mail server provided for use, first sender identification information for identifying a desired mail sender is stored in advance in a sender storage unit. When a specific component including transmission source identification information among a plurality of components constituting the electronic mail addressed to the user arrives, the second transmission source identification information included in the specific component is transmitted to the transmission unit. The first transmission source identification information stored in the original storage means is collated by the collation means. If the second sender identification information matches or does not match the first sender identification information as a result of the comparison, the automatic mail reception control means sends a download request to the mail server. Then, the electronic mail including the attached file is obtained.

Therefore, according to the present invention, only the e-mail from the desired sender is automatically downloaded, so that it is possible to avoid occurrence of memory capacity shortage and reception of unnecessary e-mail, and furthermore, desired transmission. It is possible to provide a communication terminal device having an e-mail receiving function that can easily and surely receive an e-mail from a user without performing a special operation.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a mobile communication network system to which a mobile terminal as an embodiment of a communication terminal device according to the present invention is connected.

FIG. 2 is a block diagram showing a functional configuration of a portable terminal used in the system shown in FIG. 1;

FIG. 3 is an exemplary flowchart showing procedures and contents of automatic mail reception control executed in the mobile terminal shown in FIG. 2;

4 is a transmitting terminal in the system shown in FIG. 1,
FIG. 9 is a sequence diagram showing a signal transmission procedure between the mail server and the receiving terminal.

FIG. 5 is a diagram showing an example of the configuration of a transmission source identification information storage unit provided in the mobile terminal shown in FIG. 2;

FIG. 6 is a diagram illustrating a registration unit of transmission source identification information according to another embodiment of the present invention.

[Explanation of symbols]

 NW: mobile communication network BS1 to BSn: base stations MS1, MS2: portable terminal SV: mail server 1: antenna 2: duplexer (DUP) 3: receiving circuit (RX) 4: frequency synthesizer (SYN) 5: transmitting circuit (TX) 6 CDMA signal processing section 7 Compression / expansion processing section 8 PCM code processing section 9 Receiver amplifier 10 Speaker 11 Microphone 12 Control section 12a Sender verification function 12b Mail automatic reception control function 12c Inquiry display control function 13 ... Storage unit 13a ... Received mail storage unit 13b ... Sender identification information storage unit 14 ... Input unit 15 ... Display unit 16 ... Battery 17 ... Power supply circuit 18 ... Transmission amplifier

Claims (7)

[Claims] An electronic mail transmitted from a transmission source is divided into a plurality of components, and the communication is used by connecting to a mail server having a function of selectively downloading them to a destination communication terminal device. In the terminal device, a transmission source storage unit that stores first transmission source identification information for identifying a desired mail transmission source in advance; and a plurality of constituent elements configuring an electronic mail addressed to itself from the mail server. When a specific component including the source identification information arrives, the second source identification information included in the specific component is compared with the first source information stored in the source storage unit. A collating means for collating, and when the collation by the collating means shows that the second sender identification information matches the first sender identification information, a download request is sent to the mail server. A communication terminal device having an e-mail reception function, comprising: a mail automatic reception control means for acquiring the e-mail addressed to the self including an attached file. 2. The communication used by connecting to a mail server having a function of dividing an e-mail transmitted from a transmission source into a plurality of components and selectively downloading them to a destination communication terminal device. In the terminal device, a sender storage unit for storing first sender identification information for identifying an undesired email sender, and a plurality of constituent elements constituting an electronic mail addressed to itself from the mail server. When a specific component including the source identification information arrives, the second source identification information included in the specific component is compared with the first source information stored in the source storage unit. A collating means for collating; and if the collation by the collating means shows that the second sender identification information does not match the first sender identification information, a download request is sent to the mail server. A communication terminal device having an e-mail receiving function, comprising: a mail automatic reception control unit for outputting the e-mail including the attached file and addressed to itself. 3. The collation means extracts second sender identification information from a mail arrival notification arriving from the mail server, and stores the extracted second sender identification information in the sender storage means. 3. The communication terminal device having an e-mail receiving function according to claim 1 or 2, wherein the communication terminal device is compared with the first transmission source information. 4. The method according to claim 1, wherein when the incoming mail notification from the mail server does not include the second sender identification information, the checking unit requests the mail server to download header information. The second transmission source identification information is extracted from the header information downloaded from the mail server in response to the download request, and the second transmission source identification information is extracted from the first transmission source information stored in the transmission source storage means. The communication terminal device having an e-mail receiving function according to claim 3, wherein the communication terminal device is compared with a communication terminal. 5. If the second sender identification information does not match the first sender identification information as a result of the matching by the matching means, the user determines whether or not to request the download of the e-mail. A notifying means for notifying the user of the notification, and a mail for sending a download request to the mail server to receive the electronic mail addressed to the user when the user performs an operation for requesting a download in response to the notification by the notifying means. 2. The communication terminal device having an e-mail receiving function according to claim 1, further comprising a manual reception control unit. 6. When the second sender identification information matches the first sender identification information as a result of the matching by the matching means, the user is notified of whether or not to request the download of the e-mail. And a mail manual receiving unit that sends a download request to the mail server to receive the electronic mail addressed to the user when the user performs an operation for requesting a download in response to the notification by the notification unit. 3. The communication terminal device having an electronic mail receiving function according to claim 2, further comprising a control unit. 7. When there is provided address storage means for storing a list of transmission source identification information, said transmission source storage means includes a plurality of transmission source identification information stored in said address storage means. A sender identification information corresponding to a desired mail sender is added with a reception permission identifier and stored, and the collating means transmits the specific component of the electronic mail addressed to itself from the mail server. Source identification information to which a reception permission identifier has been added is selected from among a plurality of source identification information stored in the original storage means, and the source identification information included in the received specific component is referred to as the source identification information. 3. The communication terminal device having an electronic mail receiving function according to claim 1, wherein the communication terminal device checks the selected transmission source identification information.