JP3220600B2 - Wireless e-mail receiving system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication system, and more particularly to a wireless electronic mail receiving system.

[0002]

2. Description of the Related Art Electronic mail (hereinafter abbreviated as "mail")
Is known as a communication method that allows a user to write a message when the user has time to spare, such as a letter, and to convey it to the other party at the speed of a telephone. Convenience of combining letters and telephones, such as urgent or important emails that need to be selected and viewed early after arrival, but less important emails can be viewed when time allows. It has.

[0003] The received mail is generally selected from an index including areas such as the sender, date, time and title of the mail. An index is created in the order of the date and time of mail reception and output to the display unit. Generally, the displayed index also serves as a means for an individual to select a necessary mail based on the title name and the sender name.

Further, Japanese Patent Application Laid-Open No. Hei 6-131305 uses a technique of picking up necessary data from a data update history based on bulletin board data based on data taken in a terminal. This automates the judgment of whether or not it is necessary to take in the terminal side based on the bulletin board data, but it is considered that the above general means is used in that the index is used for taking in the information. .

[0005]

As a first problem, in the above-mentioned conventional technology, the classification of a mail having high or low importance for an individual is performed by the individual himself. Although the number of received mails naturally increases, it is not generally considered that the number of received mails naturally disappears and decreases, so that the more mails are received, the lower the efficiency of mail classification. Also, since the title does not always accurately represent the contents of the mail, there is a limit to the classification of the mail relying only on the title, and frequent maintenance of the received mail is required. In the above-described conventional technology, the burden of selecting an e-mail necessary for the individual places a greater burden on the individual than on the system side, and the individual cannot fully enjoy the information processing capability of the system. Also, if you frequently need to maintain incoming email,
Since it becomes necessary to concentrate on maintenance, the effective use of e-mail cannot be sufficiently exhibited. Further, Japanese Patent Application Laid-Open No. Hei 6-131305 uses a technique of picking up necessary data from a data update history based on bulletin board data based on data taken into a terminal. This has a similar problem in that only the determination as to whether or not the data need to be taken into the terminal is automated, and the classification work on the data that needs to be performed must be performed only by individuals.

[0006] As a second problem, in the above-mentioned prior art, the selection of a mail having necessary contents that is important to an individual is performed by creating an index of the mail and selecting the received mail from the index by the individual himself. However, this index does not indicate which mail is urgent, which mail is important, and which mail is less important, and is often arranged simply in order of reception date and time. Even if the index is simply enough to know when and what kind of mail was received, it cannot be expected to reduce the burden associated with the confirmation and selection of mail necessary for the individual. Further, Japanese Patent Application Laid-Open No. 6-131305 also has the same problem as the prior art in that only a simple index is transmitted to the terminal side.

[0007] As a third problem, in the above-mentioned prior art, the mail index is often simply arranged in order of reception date and time, but the mail does not necessarily need to be read in order of reception date and time. It has the convenience of freely selecting necessary and important e-mails according to the requirements. For this reason, the means for creating and displaying an index in the order of the reception date and time in the prior art and prompting the selection cannot expect the effect of reducing the burden on the individual due to the selection of the mail, and the use efficiency of the mail is not sufficiently exhibited. Will be. Further, in Japanese Patent Application Laid-Open No. Hei 6-131305, since the individual must search and determine which of the picked-up data is necessary for the individual. The burdensome situation is inevitable.

[0008] In the case of the high importance of e-mail a lot, a special word for the individual to be the importance of the criteria (keyword) is turned on.

[0009]

SUMMARY OF THE INVENTION The present invention is directed to solving the above problems.
By assigning importance to this keyword for
To classify incoming e-mails and the associated e-mail
It is provided with a means to assist index creation and selection .

As a first means, a mail server and the mail server
Receives mail signals sent from mail servers wirelessly
Wireless e-mail composed of an e-mail receiving terminal
A receiving system, wherein the mail server includes the mail server;
Mail sent to the receiving terminal
Means for transmitting to the mail receiving terminal,
The terminal has a wireless unit that receives emails wirelessly,
Input unit used for operation instructions and display for displaying various information
Section and the first mail storage for storing the received mail as it is
Stacking unit and a second mail storage unit for storing classified mails
And a key that has been assigned a priority for use in
Keyword memory for storing keywords, and keywords
To store the emails compiled for each
Controls the index memory section and the processing sections.
Control unit, wherein the control unit classifies the received mail.
Control unit to perform indexing and indexing to create index
A second control unit, wherein the second mail storage unit includes a keyword
To store the emails classified by
The keyword information contained in the rule
Keyword information section and the key words included in the email
And an AND number information section for storing the number of code types.
The classification control unit stores the information in the first mail storage unit.
Emails stored in the keyword memory section
Categorized by keywords based on the keywords you have,
Keyword information and keywords contained in the email
The number of types of keywords in the keyword information of the second mail storage unit.
Section and AND number information section, respectively.
The importance of a keyword with a degree as an index
Create a keyword index in order and display it on the display
The index control unit indicates the created key
One of the word indexes is selected by the input unit.
If selected, the information is stored in the second mail storage unit.
E-mail about the selected keyword index
Extracted and stored in the index memory unit.
At the display unit, and further displays the selected key.
When extracting mails related to the word index,
Included in one email based on the number of keywords
The list is created by extracting mails in descending order of the number of types of keywords .

As a second means, in addition to the above,
The index control unit, together with the key <br/> keyword included in one email if you are over a plurality of importance, extracted sequentially including many high priority keyword, key
And information on AND relation between words is set.

[0012]

The first operation is to classify received mails by keywords having importance. This automates the classification of emails that are important to the individual, so that if the keywords are set in advance, the system can classify emails that are important to the individual without the individual directly intervening in the email classification work. Can be done automatically. Thus, the system reduces the burden on the individual who classifies the mail, and improves the work efficiency by automating the classification.

[0013] Further , a keyword index is created using the keyword having the importance as an index. This makes it possible to grasp at a time whether the mail important to the individual or the urgent mail has been received, just by looking at the index. This allows you to check whether you are receiving emails that you need,
The frequency at which maintenance of the mail storage unit is required is greatly reduced.

[0014] As a second operation, a mail group including the keyword is configured by the keyword having the importance. Since the indexes of the mail group are arranged in order of importance, it is possible to grasp what should be selected for the individual simply by looking at the index. This reduces the burden on the individual involved in selecting an email.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wireless electronic mail receiving system according to the present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 is a diagram showing an outline of a wireless electronic mail receiving system comprising a mail server not implementing the present invention and a mail receiving terminal implementing the present invention. The mail receiving terminal of the wireless e-mail receiving system according to the present invention stores a mail signal transmitted from the mail server 10 as a transmission source, a radio unit 2 for receiving a mail by radio via the antenna 1, and the received mail as it is. Mail storage unit 3 (first mail storage unit), control unit 5 for controlling the entire terminal, and classification control unit 5 for classifying received mails in particular
a, an index control unit 5b for creating an index, a key input unit 6 used for operation instructions such as mail selection, a display unit 7 for displaying a keyword index, a mail index, and mail contents. E-mail storage unit 3a (second e-mail storage unit) for storing e-mails for each keyword with a degree of importance to be stored again
And the AN included in the keyword information section 4a storing the keyword information included in the mail.
An AND number information section 4b for storing information on the number of D, a memory section 8 for storing work information, a keyword memory section 8a for storing keywords, an index memory section 8b for storing created indexes, and an emergency Or, an audio output unit 9 which is a notification unit for notifying the arrival of an important mail.
And it consists of.

Next, regarding the operation, the mail transmitted from the mail server 10 is received via the antenna 1 and stored in the mail storage unit 3 by the control unit 5 via the radio unit 2. After the completion of the mail reception, the classification control unit 5a immediately stores the received mail in the keyword memory unit 8a.
The content is searched based on the keyword stored in the. And the classification is started (see FIG. 2). The classified mails are stored by the classification control unit 5a in the mail storage unit 3a for each keyword having a degree of importance. The keyword index created at this time is adjusted by the index control unit 5b into a format as shown in FIG. 4 in the index memory unit 8b, and is output via the display unit 7. Next, selection from the keyword index is performed by the key input unit 6 (see FIG. 3).

With the above selection, the mail index is
The data is adjusted by the index control unit 5b into the format shown in FIG. 5 in the index memory unit 8b, and is output via the display unit 7. The individual can select a mail from the mail index by using the key input unit 6. The selected mail content is output via the display unit 7. FIG. 1 shows one embodiment of a wireless e-mail receiving system. If the present invention is realized in the system, a combination of a mail server implementing the present invention and a mail receiving terminal not implementing the present invention is used. There may be.

Next, a flowchart of the mail classification operation will be described with reference to FIG. Figure 1 before classification begins
It is assumed that the keyword memory section 8a stores a keyword for which importance is set. The importance assigned to the keywords is not duplicated, but if they do overlap, the keyword whose first character code at the top is a small code has priority in processing. For example, “NARA” has priority over the keywords “OSAKA” and “NARA” of importance B.

The classification process is started after the mail is received,
First, a mail to be classified is selected from the mail storage unit 3 (step 1). If there is no unprocessed mail, the classification process ends (step 2). This classification unprocessed state indicates a state in which classification is not performed by the currently set keyword. Next, the keyword having the highest importance is set as a search key. Immediately after the start of the classification process, a keyword indicating emergency such as "urgent" or "urgent" is set as an initial value as a search key. This is to prevent an urgent mail from being inadvertently classified and overlooked by an individual (step 3). For example, if step 3 is executed for the second time, the keyword with the highest importance set by the individual or the keyword with the highest importance and A
All keywords having an ND relationship are used as search keys. The keyword for which importance is set is stored in the keyword memory unit 8a.

Next, when trying to set a keyword,
If there are no more keywords to check (all keywords have been checked), the process moves to step 12 (step 4). Next, the contents of the mail are searched using the search key. The scope of the search includes not only the mail content, but also the sender, title, date and time. By using all search keys set during one search,
The same mail is not searched from the beginning many times (step 5). If the same keyword as the search key is found in the mail, the process proceeds to step 9. If not found, the process proceeds to step 7 (step 6). If one mail search is completed without finding a keyword, the process moves to step 4 with a keyword having the same or lower importance as the current search key as a new search key (step 8).

Next, consider the case where the process has proceeded to step 9. The keyword having the importance level has a role as a search key, and also a role as an index of the classified mail and a name of the mail storage unit 3a. The keyword is set by the individual feeling the urgency and importance, and it is easy for the individual to associate and use the index as an index of the classified mail group. The search target mail is stored in the mail storage unit 3 corresponding to the index. For example, if the index is "SHARP", the mail is stored in the mail storage unit 3a having the index (name) "SHARP" (step 9).

Next, it is determined whether the search is an AND search or an OR search. If the keywords are set in an AND relationship such as "keyword 1" and "keyword 2", then AN
This is a D search, and an OR search if it is set in an OR relationship with “keyword 1” or “keyword 2”. In the case of the OR search, since the search is performed in the descending order of the importance, it is not necessary to continue the mail search, so that the process proceeds to the step 1 (step 10). Next, in the case of an AND search, keyword information such as which keyword has an AND relationship is temporarily stored in order to continue the search for the same mail with the remaining other keywords, and the process proceeds to step 8.

Next, if the processing is shifted to step 12, if the search for the same mail is continuing, the search is an AND search, so the processing shifts to step 14 and the first keyword is found during the AND search. Keywords found thereafter and AND number of keywords (step 15)
Is recorded in the areas 4a and 4b in the mail storage unit 3a corresponding to the keyword (the areas (44, 4 in FIG. 4).
6), areas (55, 57) in FIG. If the information in steps 14 and 15 does not continue the search used in steps 52 and 58 in FIG. 10, it means that there is no corresponding keyword in the mail. It is stored in the storage unit 3a (step 13). Step 13, Step 14/15
After execution of, there is no need to check the mail currently being searched, so the process proceeds to step 1.

Next, referring to FIG. 3, a description will be given of a flowchart of an operation of selecting a mail whose classification has been completed. The selection process is started after the classification is completed, and an index list is created from the mail storage unit 3a corresponding to the index, and is displayed in descending order of importance (step 21). Next, a key input is accepted, and an index shown in FIG. 4 is selected (step 2).
2). Next, the index to be selected is determined, and the mail storage unit 3a corresponding to the index is opened and selected (step 23). Next selected mail storage unit 3a
Create a mail Louis index shown in FIG. 5 in turn displays the top-mail (see FIG. 5) to be determined with high importance (step 24). Next, a key input is accepted and a mail is selected (step 25). The mail to be selected next is determined, and the selection process ends (step 26). As will be described later, FIGS. 9 and 10 show detailed flowcharts of steps 21 and 24.

FIG. 4 shows a display output example of the keyword index at the time of mail classification. The area 40 displays the importance of the index. The importance is alphabetical letters AZ. They are arranged from the top in the order of importance. The area 41 is an index number and is assigned a number starting from 0 from the top. Area 42 displays an index.
Here, the index is the keyword itself for which importance has been set, and the numerical value not enclosed in parentheses in the area 43 indicates the total number of received mails. The unread number enclosed in parentheses indicates the number of mails whose contents have not yet been read out of the total number received. For example, to check whether or not there is an e-mail related to the contract, use the area (44, 46)
To see if unread is one or more. An area 44 indicates whether an AND search has been performed. "None" is O
This means an R search, and if it is an AND search, it indicates which index number the AND relationship is with.

Arrows in the above areas (44, 46) indicate AN
This is a mark having the highest importance in one keyword group having the D relationship. In addition, since a normal mail includes a mail that does not correspond to the set keywords, there is no mail having an AND relationship. In FIG. 4, the area 45 and the area 46 have an AND relationship, and the area 45 and the area 47 have an OR relationship. An area 49 stores an e-mail having no corresponding keyword, and an area 45 stores an urgent e-mail. At the time of mail classification to the mail storage unit 3a to which urgency or importance is set, the voice output unit 9 which is a sound notification unit in FIG.
Notify reception. In addition, keyword Doi index Figure 1
Is stored in the index memory unit 8b.

[0028] FIG. 5 shows a display example of output Mae Louis down <br/> index at e-mail selection. This is a mail index stored in the mail storage unit 3a using the keyword “SHARP” in the area 47 in FIG. 4 as an index. 4 area (43, 47)
As shown in (2), a total of two e-mails are received, of which one is unread. The mail in the area 57 in FIG. 5 is linked from the area (55, 57) in FIG. 5 to the mail stored in the storage unit 3a of the index “contract” in the area (42, 46) in FIG. (From step 9 in FIG. 2). That is, selecting the mail in the area 57 in FIG. 5 is equivalent to selecting the mail itself existing in the mail storage unit 3a of the index “contract” in the area (42, 47) in FIG.

As shown in FIG. 2, the linked mail means that the mail is always more important than the mail storage unit 3a currently stored or exists in the mail storage unit 3a having the same importance, and is not linked. It is located above the email and indicates that it is important. This means that even if mails are concentrated in one mail storage unit 3a, important mails are always located at the top in FIG. The degree of importance can be determined by the number of ANDs in the area 51 in FIG. AND
Since a large number of mails contain more important keywords than a mail with a small number of ANDs, it can be an index for the individual to judge how specifically the importance is narrowed down. The area 56 is checked if the mail has been read at least once, and is displayed as unread if the mail has not been read at least once. Incidentally, Mae Louis index is stored in the index memory section 8b of FIG.

FIG. 6 is a table summarizing one embodiment of keyword setting for displaying the index shown in FIG. This embodiment shows what is important for the following individuals 1) and 2). Note that 1) and 2) are independent and have no relation. 1) I want information on the status of contracts with each business partner, but especially want to know information about SHARP. 2) I want to know if I can attend the meeting. FIG. 6 shows an embodiment in which this is set as a keyword. Individuals are the importance of area 60, the keyword of area 61,
Information indicating whether or not the area 62 has an AND relationship is set as one set. The individual sets three keywords of the area 63, the area 64, and the area 65.

FIG. 7 shows an embodiment in which keywords are stored in the keyword memory section 8a. A
The keyword having the ND relationship has a pointer indicating the head address to the keyword storage data having the AND relationship as shown in an area 71. From step 3 in FIG. 2, the keywords in the AND relationship are used as search keys in descending order of importance, so that the direction of the pointer is one direction from the keyword with higher importance to the keyword with lower importance. Since the area 72 indicates that the linking of the keywords by the pointer is completed, it is understood that the keywords “contract” and “SHARP” are in an AND relationship. Area 72 and Area 7
3 is the same exit code, the only difference is that area 72 indicates that there are more keywords,
The area 73 indicates that the keyword information ends there. In other words, "SHARP" and "meeting" are linked by pointers from other keywords,
The former is a link indicating an AND relationship, and the latter is a link not indicating an AND relationship, that is, a link indicating an OR relationship.

FIG. 8 is an example of a received mail classified by the keyword set in FIG. This is a typical example in which the title alone has no idea of the contents until the contents of the mail are viewed. Since the area 81 contains the keyword "SHARP" and the area 82 contains the keyword "contract", this mail is classified into the mail storage unit 3a indexed by "contract" in the area 46 in FIG. Become.

FIG. 9 is a flowchart showing details of processing for creating and displaying the keywords Doi index than the mail storage unit 3a of the step 21 in FIG. 3. First, the variables i,
An initial value is substituted for n (step 31). For example, the variable n is n = the number of set keywords. Next, keyword N
o. Then, a table is created in which the mail storage units 3a are associated in the order of importance (step 32). Next, the keyword No.
Is selected as the mail storage unit 3a. Note that i = 0
Is the emergency mail storage unit 3a, and the mail storage unit of i = n + 1 is the normal mail storage unit 3a.
That is.

Next, No. The i mail storage unit 3a is selected by referring to the table (step 33). Next, the keyword name, importance, keyword No. (= I) is set in the index memory unit 8b (step 34). Then N
o. The number of received mails in the mail storage unit 3a for i is counted and set in the memory unit 8b (step 35). Next, the keyword memory unit 8a is searched (step 36).
The mail storage unit 3a having the ND-related keywords as an index is searched in order. The search in the keyword memory section 8a is continued until all the keywords have been searched (step 38). Next, if an AND-related keyword is found (step 37), the AND-related keyword No. is displayed in the AND column. From the table (Step 3
9), the keyword No. is entered in the AND column. Is set in the index memory unit 8b (step 41).

If no keyword having an AND relationship is found, the keyword is a keyword having an OR relationship, so that "none" is set in the AND column in the index memory section 8b (step 40). After the completion, a conditional branch of i <1 + n is performed (step 42). As shown in the area (44, 49) in FIG. 4, since the mail containing no keyword is accumulated in the normal mail, the conditional expression in step 42 is not i <2 + n but i
<1 + n. If Yes, i is incremented (step 43), and the process proceeds to step 33 to form a loop. If No, set all the display contents in the index memory section 8b, performs display so keywords Doi emissions de <br/> box is completed (step 44) and terminates the process.

[0036] FIG. 10 is a flowchart showing details of processing for creating and displaying mail Louis index than selected mail storage unit 3a of the step 25 in FIG. 3. First, initial values are substituted for variables i and n (step 51). For example, the variable n is n = the number of stored mails. Next, based on the AND number information stored in the area 4b of FIG.
.., N-1 are created in the order of e-mail with the largest number of D (step 52). It should be noted that the mail with i = 0 has the most AND relationship and can be said to be the mail whose importance is narrowed down most specifically. It can be said that the mail of i = n-1 is the mail whose importance is not specified most among the mail storage units included.

Next, No. i is selected by referring to the table, and the number of ANDs is calculated from area 4b in FIG.
The sender name, date, and time, which are the accompanying information of the mail, are set in the index memory unit 8b (step 5).
4). Next, it is determined whether or not the mail has not been read (unread) (step 55). If it has not been read, "un" is set in the done column of the index memory unit 8b (step 56). If the mail has already been read (read), a check mark indicating that it has been read is added to the index memory unit. 8b (step 57).

Next, referring to the keyword information in the area 4a in FIG. 1, it is determined whether or not the mail being processed is linked (step 58). If it is linked, the character string "** link **" is set in the index memory unit 8b (step 59). If it is not linked, the title name, which is the accompanying information of the mail, is set in the index memory unit 8b. (Step 6
0). The case where the keyword is not linked also applies to the case where the keyword is in the AND relationship but has the highest importance in the keyword group (not the linked keyword).

After these operations are completed, a conditional branch of i <n is performed (step 61). If Yes, i is incremented (step 62), the process proceeds to step 53, and a loop is formed. If No, set all the display contents in the index memory section 8b, so Mae Louis <br/> index will be completed, and terminates the performs display (step 63) process.

As described above, when the above-described embodiment is arranged, keywords having importance levels as shown in FIG. 6 are set, received mails are classified according to the algorithm shown in FIG. 2, and a keyword index is created using the algorithm shown in FIG. Although FIG. 4 shows that the burden of selecting mails is reduced by just doing, mails may concentrate on a specific mail storage unit 3a. Indicating that the plurality of keywords are included in the mail, it is positioned above the mail index algorithm shown in FIG. 10 more mail of AND number of areas 51 shown in FIG. That is, for an individual, a mail whose importance is specifically narrowed is positioned above each index display. 4 and 5
Is a display example, and does not necessarily have to be as shown in this figure. FIG. 3 shows the processing from FIG. 4 to FIG.

[0041]

According to the wireless e-mail receiving system of the present invention, the received e-mails are classified by the keyword for which the degree of importance is set, and there is provided a selecting means based on the index. As a result, the information processing capability of the system and the effectiveness of the use of e-mail are exhibited, and the system has convenience for individuals.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a wireless electronic mail receiving system according to an embodiment of the present invention.

FIG. 2 is a flowchart of a mail classification unit according to an embodiment of the present invention.

FIG. 3 is a flowchart of a mail selecting unit according to an embodiment of the present invention.

FIG. 4 is a diagram showing an example of display output at the time of mail classification in FIG. 1;

FIG. 5 is a diagram showing an example of display output when a mail is selected in FIG. 1;

FIG. 6 is a diagram showing an embodiment of keyword setting for mail classification shown in FIG. 4;

FIG. 7 is a diagram illustrating an example of a state where the keywords illustrated in FIG. 6 are stored in a keyword memory unit (8a).

FIG. 8 is a diagram showing an example of mail classified by the keyword set in FIG. 6;

FIG. 9 is a flowchart showing a detailed operation of step S21 shown in FIG. 3;

FIG. 10 is a flowchart showing a detailed operation of step S25 shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Radio | wireless part 3 1st mail storage part 3a 2nd mail storage part 4a Keyword information part 4b AND number information part 5 Control part 5a Classification 2nd control part 5b Index control part 6 Key input part 7 Display part 8 Memory part 8a Keyword memory section 8b Index memory section 9 Voice output section 10 Mail server

Continuation of the front page (56) References JP-A-6-250950 (JP, A) JP-A-4-178045 (JP, A) JP-A-2-2-2754 (JP, A) JP-A-6-250949 (JP) JP-A-2-116242 (JP, A) JP-A-5-110593 (JP, A) JP-A-5-250415 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB Name) H04L 12/58 G06F 13/00

Claims (2)

(57) [Claims] And mail servers [1 claim ## comprising said mail servers by Ri mail signals transmitted becomes is composed of a mail receiving terminal for receiving wirelessly wireless electronic mail receiving system, the mail server is Means for transmitting the mail transmitted to the mail receiving terminal to the mail receiving terminal by wireless, the mail receiving terminal comprising: a wireless unit for receiving the mail by wireless; and an input used for various operation instructions. Unit, a display unit for displaying various information, a first mail storage unit for storing received mail as it is,
A second mail storage unit for storing classified mails, a keyword memory unit for storing keywords for which importance is set for use in mail classification, and an index memory unit for storing mails for each keyword as an index And a control unit that controls each of the processing units. The control unit has a classification control unit that classifies received mails and an index control unit that creates an index, and the second mail storage unit , Broken down by keyword
The part that memorizes the mail and the part included in the mail
Keyword information section that stores the keyword information
And the number of types of keywords contained in the email
And an AND number information section to remember, wherein the classification control section classifies the mail stored in the first mail storage section for each keyword based on the keyword stored in the keyword memory section. And then
Keyword information and keywords included in the email
And the number of types in the keyword information section of the second mail storage section.
Each of the created keyword indexes is stored in the AND number information section , and a keyword index is created in the order of importance by using the keyword provided with the importance as an index, and displayed on the display section. If either is selected by the input unit, the extracts selected email about keyword index was stored in said second mail storage unit stores in said index memory section and displayed on the display unit , And further, regarding the selected keyword index,
When extracting emails based on
The type of keyword contained in one email
A wireless e-mail receiving system, wherein a list is created by extracting e-mails in descending order of the number of e-mails. 2. The method according to claim 1, wherein the index control unit includes one
When keywords contained in Le spans multiple importance, it is extracted in the order, including many of high importance keyword sets information of an AND relationship keywords each other, according to claim 1, wherein the radio Email receiving system.