JP2004304626A - Communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system which leaves no traces of deleting action itself when a user deletes historical data. <P>SOLUTION: A nonvolatile memory 3 stores a plurality of historical data which show histories of origination and termination by a communication device, by classifying them into a display target group and a potential group. An operating part 6 displays historical data classified in the display target group, and a displaying part 5 accepts an operation of deleting historical data displayed in a list from a user. When deleting the data, historical data in the potential group are moved to the display target group. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
FIELD OF THE INVENTION
The present invention relates to a communication device having a function of storing a history of incoming and outgoing calls, and more particularly to an improvement in deleting history data.
[0002]
[Prior art]
Communication devices such as mobile phones have a function of storing a history of incoming and outgoing calls. History data indicating the history of outgoing / incoming calls is stored in a non-volatile memory and provided for user browsing. When a mobile phone is used for a long time, the number of the history data gradually increases. In order to promote the organization of a large amount of history data, mobile phones are provided with a history data deletion function. By using this deletion function, unnecessary histories can be deleted, and histories of incoming / outgoing calls from a partner who does not want to be known to others can be deleted.
[0003]
For this reason, the history data deletion function also helps protect the privacy of the user. Prior art documents relating to the storage history of communication messages include those described in Patent Document 1 below.
[0004]
[Patent Document 1]
JP-A-7-250167
[Problems to be solved by the invention]
By the way, portable communication devices such as mobile phones have a small capacity of nonvolatile memory. Therefore, the number of stored history data is generally limited to about 20. However, if the history data is deleted, the number of stored history data is smaller than the maximum number of storages, that is, 18 or 19. Regardless of the mobile phone just purchased, it is unlikely that the number of history data of a mobile phone that has been used for months is less than this maximum storage number. The fact that "the number of history data is less than the maximum number of storages" is a trace of the deletion.
[0006]
When a user's lover, wife, or parents happened to read the incoming / outgoing call history on the mobile phone, they may have doubts about deleting any inconvenient history data due to the small number of history data. is there. It is not desirable for the user or the maker that when the user deletes the file, the discrepancy in the human relations caused by the suspicion that "there is a secret thing" is made.
[0007]
An object of the present invention is to provide a communication device that does not leave a trace of the deletion itself when the user deletes the history data.
[0008]
[Means for Solving the Problems]
In order to solve the above problem, a communication device according to the present invention includes a memory storing a plurality of pieces of history data indicating communication histories into a display target group and a candidate group, Display means for displaying the history data classified into the display target group without displaying the history data classified into the display target; and any one of the history data in the display target group according to a predetermined operation performed by the user on the display. There is provided a deletion means for deleting the data, and a movement means for moving the history data classified into the candidate group to the display target group when the deletion is performed by the deletion means.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the communication device according to the present invention will be described using a mobile phone as an example. FIG. 1 is a diagram showing an internal configuration of a mobile phone as a communication device. As shown in FIG. 1, the communication device includes a baseband processing unit 1, a high-frequency signal processing unit 2, a nonvolatile memory 3, a display target group area 4, It comprises a display unit 5, an operation unit 6, a candidate group area 7, and a control unit 8.
[0010]
The baseband processing unit 1 performs transmission / reception processing on a baseband signal. At the time of transmission from the mobile phone, the baseband processing unit 1 performs a transmission process under the control of the control unit 8 and outputs a baseband signal to the high-frequency signal processing unit 2. When a mobile phone receives a call, the baseband processing unit 1 performs reception processing on the baseband signal output from the high-frequency signal processing unit 2 to obtain digital data and outputs the digital data to the control unit 8.
[0011]
The high-frequency signal processing unit 2 performs a conversion process between a baseband signal and a high-frequency signal. At the time of transmission, the high-frequency signal processing unit 2 converts the baseband signal output by the baseband processing unit 1 into a high-frequency signal, amplifies the signal, and outputs the signal. At the time of an incoming call, the high-frequency signal processing unit 2 amplifies the high-frequency signal input from the antenna, converts the signal into a baseband signal, and outputs the signal to the baseband processing unit 1. The baseband processing unit 1 and the high-frequency signal processing unit 2 transmit or receive a call signal and transmit or receive call data.
[0012]
The nonvolatile memory 3 is an EEPROM or the like, and has two logical areas for storing history data. Since it is a non-volatile memory, the contents stored in the non-volatile memory 3 will not be lost even if the power of the communication device is cut off. Since the communication device is a mobile phone, the size of the nonvolatile memory 3 is small, and the number of history data stored in the nonvolatile memory 3 is only about 20. Such restrictions are specific to mobile phones. Because communication devices classified as PDAs and personal computers have large-capacity nonvolatile memories and hard disks, dozens or hundreds of history data can be stored. There is no need to impose any restrictions.
[0013]
The display target group area 4 is one of two logical areas in the nonvolatile memory 3, and stores a display target group including a maximum of 20 pieces of history data. The history data is data indicating a history of transmission or reception when transmission processing and reception processing are performed by the baseband processing unit 1 and the high-frequency signal processing unit 2. The history data has, as basic elements, the telephone number (1) of the other party when making and receiving calls, the date and time of making and receiving calls (2), and a flag (3) indicating whether or not the incoming call is one-time call. Whether it is one-shot or not is determined based on the number of incoming calls and the time of incoming calls, but the details are not the main focus of the present application, and therefore the description is omitted. In addition to this, the history data may include, as optional elements, a flag (4) indicating whether or not the telephone number in the history data is registered in the address book, and the name (5) of the outgoing / incoming party in the address book. Including. Since the history data includes a history of outgoing calls and a history of incoming calls, the display target group area 4 also stores the history data of outgoing calls and the history data of incoming calls separately. However, if the description is made by exemplifying both of them, the description becomes complicated. Therefore, in the present embodiment, the description will be made by exemplifying the history data of the incoming call. FIG. 2A is a diagram in which the date and time (2) and the name (5) of the history data stored in the display target group area 4 are replaced with specific examples.
[0014]
The display unit 5 visualizes and displays four of a maximum of 20 pieces of history data stored in the display target group area 4, and displays the number of stored history data in the display target group area 4. The visualization by the display unit 5 allows the user to know how many calls have been made and received in the communication device in the past. FIG. 3A shows how the history data is displayed on the display unit 5 when the 20 pieces of history data shown in FIG. 2A are stored in the display target group area 4. The display unit 5 in the figure is an LCD on the mobile phone, and the 20 history data in the display target group area 4 is scroll-displayed every four on this LCD. Further, the storage number of 20 is displayed in the guidance gd1. By pressing the arrow key 5 a on the operation unit 6, the display content of the display unit 5 is scrolled, and any of the history data of a total of 20 items stored in the display target group area 4 can be browsed.
[0015]
The operation unit 6 receives a user operation from an arrow key, an on-hook key, an off-hook key, or a delete key. FIG. 3A shows how the keys of the operation unit 6 are arranged in the housing of the communication device. As shown in FIG. 3A, the arrangement of the arrow key 5a, the on-hook key 5b, the off-hook key 5c, and the delete key 5d is devised so as to be depressed with one hand. In the present embodiment, it is assumed that a key having a use of a delete key exists, but a key of another use may be assigned a use of “delete” to be used as a delete key. The user can switch any one of the plurality of pieces of history data on the display unit 5 by pressing the arrow key 5a of the operation unit 6. The inverted state is a state where a user operation is performed. If the user presses the off-hook key 5b of the operation unit 6 in a state where one piece of history data is inverted, a call is made to the other party in the history data. When the delete key 5 d is pressed in the state where the history data is inverted, the history data is deleted from the display target group area 4. The operation unit 6 provides a user with a visual interface in cooperation with the display unit 5. FIG. 3B shows a state in which the history data of the snack S among the four history data in FIG. 3A has been inverted.
[0016]
The candidate group area 7 is one of two logical areas in the non-volatile memory, and stores a candidate group including a few pieces of history data. As for the relationship between the display target group and the candidate group, the history data in the candidate group area 7 has a date and time of transmission and reception that are earlier than the history data of the display target group. FIG. 2B is a diagram showing what kind of history data is stored in the candidate group area 7 when the history data shown in FIG. 2A is stored in the display target group area 4. is there. In this figure, the date and time of the history data stored in the candidate group area 7 are “2003 2/2 13:00”, “2/2 10:00”, “2/2 9:00”, and the display target group area 4 Are older than the date and time of “2003 2/3 18:00”, “2/3 17:00”, and “2/3 15:00”. This indicates that the history data stored in the candidate group area 7 is older than the history data stored in the display target group area 4. The history data stored in the candidate group area 7 cannot be browsed by a normal operation, and the history data in the candidate group area 7 does not count as the number stored in the nonvolatile memory 3. Therefore, the history data stored in the candidate group area 7 is not recognized by the user. The history data in the candidate group area 7 is not recognized by the user, and only a good number of history data of 20 cases is recognized by the user.
[0017]
The control unit 8 performs transmission control and reception control for the baseband processing unit 1 and the high-frequency signal processing unit 2 and performs memory access to the nonvolatile memory 3 based on a user operation on the operation unit 6. When sending / receiving a call in the communication device, the control unit 8 generates history data indicating an incoming call history and stores the history data in the display target group area 4 and the candidate group area 7. The control contents of the control unit 8 are realized by executing a computer-readable program by the CPU. This program is created by describing the processing procedure of the flowchart shown in FIG. 6 in a computer description language. Hereinafter, the processing procedure of FIG. 6 will be described.
[0018]
In step S0, a variable (storage count X) indicating the storage count of the history data in the display target group area 4 is initialized to zero. In the following step S1, the history data in the display target group area 4 is displayed in a list, and the number of storages X in the display target group area 4 is displayed. Then, in steps S2 to S4, the user waits for an operation on the operation unit 6 or an incoming / outgoing call. If 20 pieces of history data are stored in the display target group area 4, four of them are listed on the display unit 5 in step S 1, and the storage number 20 in the display target group area 4 is displayed on the display unit 5. Is displayed in the guidance gd1. If an outgoing / incoming call occurs, the determination of step S5 is performed. The determination in step S5 is a determination as to whether or not the storage number X in the display target group area 4 is the maximum number. If not, new history data is written in the display target group area 4 and the storage number X is set. Increment (step S6).
[0019]
If the storage number X is not the maximum number, step S6 is executed after steps S7 to S8.
Step S7 is a step of saving the oldest data among the 20 pieces of history data in the display target group area 4 to the candidate group area 7 and decrementing the number of storage cases X. (Step S6).
[0020]
Step S8 is a determination as to whether the number of history data in the candidate group area 7 has reached the maximum number. If the number of history data in the candidate group area 7 has reached the maximum number, the history data in step S7 Is saved after the oldest one of the three pieces of history data in the candidate group area 7 is deleted (step S9).
[0021]
When the arrow key 5a of the operation unit 6 is pressed, scrolling is performed in the direction of the arrow key 5a, and the history data specified by the arrow key 5a is reversed (step S10).
When the delete key 5d is pressed, the history data in the inverted state is deleted from the display target group area 4 and the number of stored items X is decremented. In step S12, it is determined whether or not the reduced storage number X is the maximum storage number -1 of the display target group area 4. If the maximum storage number of the display target group area 4 is not −1, the process returns to step S2 to step S4. If so, the latest data among the history data saved in the candidate group area 7 is displayed. 4 and increment the storage number H (step S13).
[0022]
It is assumed that the selection operation shown in FIG. 3B has been performed, and the history data on the snack S has been selected as a deletion target. When the history data of the snack S is deleted from the non-volatile memory 3 by performing the process of step S11, the candidate is replaced with the history data of the snack S as shown in FIGS. The history data on the colleague U is read from the group area 7 and written into the display target group area 4. FIG. 5 shows the display contents of the display unit 5 after the writing. As shown in the figure, since the history data of the colleague U is displayed instead of the snack S, the total number of the history data in the display target group area 4 is the same as before the deletion, and the trace of the deletion of the history data remains. Absent. For this reason, the deletion of the history data is not perceived by the user's lover, wife, or parents.
[0023]
In the present embodiment, the history data stored in the non-volatile memory 3 is call data and call history data of call signals. In addition to this, history data regarding the transmission and reception of electronic mail may be used. The history data of the electronic mail includes the URL address (1) of the other party, a flag (2) indicating whether the other party is registered in the address book, the presence or absence of CC (3), the attached file (4), the title ( Information such as 5) is a basic element.
[0024]
In addition, the history data of the incoming call history is stored in the display target group area 4 and the list display is performed. However, the history data of the outgoing call is stored in the display target group area 4 and the list display is performed. Is also good. The history data on the incoming call and the history data on the outgoing call may be stored in the display target group area 4, and these may be displayed in order by date and time.
[0025]
Furthermore, in the present embodiment, the display target group area 4 and the candidate group area 7 are logical areas on the nonvolatile memory 3, but may be provided on separate nonvolatile memories.
In addition, the number of history data stored in the display target group area 4 and the candidate group area 7 may be any number as long as the capacity of the nonvolatile memory permits. The number of pieces of history data deleted at one time is not limited to one, but may be any number.
[0026]
【The invention's effect】
As described above, the communication device according to the present invention includes a memory that stores a plurality of pieces of history data indicating a communication history in the communication device into a display target group and a candidate group, Display means for displaying the history data classified into the display target group without displaying the history data classified into the barrel group; and displaying the history data in the display target group in accordance with a predetermined operation performed by the user on the display. A deletion unit that deletes any one of them, and a moving unit that moves the history data classified into the candidate group to the display target group if the deletion is performed by the deletion unit. In the above, since the substitute history data is moved from the candidate group to the display target group, the history data appearing on the display at the time of display is displayed. The number of data is not the same as before the deletion. Since there is no trace of the deletion operation, even if the lover, wife, or parents of the user views the display of the history data of the mobile phone, the user does not notice the deletion operation. Thereby, the privacy of the user can be maintained.
[0027]
Here, the history data classified into the display target group may have a newer communication date and time than the history data classified into the candidate group (2).
Since the history data moved to the display target group instead of the deleted history data is older than the deleted history data, even if these are displayed, no unnaturalness is given to the user.
[0028]
Here, the communication device is an evacuation unit that, when a new communication is performed, saves the history data classified into the display target group that has the oldest communication date and time from the display target group to the candidate group. The history data of the new communication may be classified into groups to be displayed and stored in the memory (3).
[0029]
The replenishment to the candidate groups is performed each time communication is performed by the communication device, and thus can be executed without the user's knowledge.
[Brief description of the drawings]
FIG. 1 is a diagram showing the inside of a mobile phone as a communication device.
FIG. 2 (a) is a diagram in which date and time (2) and name (5) of history data stored in a display target group area 4 are replaced with specific examples.
(B) When history data as shown in FIG. 2A is stored in the display target group area 4, it is a diagram showing what history data is stored in the candidate group area 7.
3A is a diagram showing how the history data is displayed on the display unit 5 when the 20 history data of FIG. 2A is stored in the display target group area 4. FIG. is there.
FIG. 4B is a diagram showing a state in which one piece of history data is inverted when the arrow key 5a is pressed while the screen of FIG. 3A is displayed.
FIG. 4A is a diagram schematically illustrating a process in which any history data is deleted from a nonvolatile memory 3;
FIG. 4B is a diagram schematically illustrating a process in which history data is read from the candidate group area 7 and written into the display target group area 4.
FIG. 5 is a diagram showing display contents of a display unit after writing from a second group area to a display target group area.
FIG. 6 is a flowchart showing a processing procedure by a control unit 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Baseband processing part 2 High frequency signal processing part 3 Non-volatile memory 4 Display target group area 5 Operation part 6 Display part 7 Candidate group area 8 Control part

Claims (6)

A communication device,
A plurality of history data indicating the communication history in the communication device, a memory that is stored by classifying into a display target group and a candidate group,
Display means for displaying the history data classified into the display target group without displaying the history data classified into the candidate group;
Deleting means for deleting any of the history data in the display target group according to a predetermined operation performed by the user on the display;
A communication device, comprising: moving means for moving the history data classified into a candidate group to a display target group when deletion by the deleting means is performed. The communication device according to claim 1, wherein the history data classified into the display target group has a newer communication date and time than the history data classified into the candidate group. The communication device,
In the case where a new communication is performed, a save unit that saves the oldest communication date and time of the history data classified into the display target group from the display target group to the candidate group is provided,
3. The communication device according to claim 2, wherein the history data of the new communication is classified into a group to be displayed and stored in the memory. The saving of the history data by the saving means is as follows:
4. The communication apparatus according to claim 3, wherein the number of pieces of history data in the group to be displayed is the upper limit number, and the communication is performed when a new communication is performed. The movement of the history data by the moving means,
2. The communication device according to claim 1, wherein the deletion is performed when the number of history data in the group to be displayed becomes less than the upper limit after deletion by the deletion unit. The communication device is a mobile phone,
The communication by the communication device,
The communication device according to any one of claims 1 to 5, wherein the communication device is one of sending or receiving a call signal, sending or receiving call data, and sending or receiving an electronic mail.

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