JP2004096531A - Communication terminal and its call-receiving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication terminal and its call-receiving method for preventing troublesome communication which is immediately brought into call disconnection, after the call receiving. <P>SOLUTION: When receiving a designator for generating a calling receiving signal, a timer is initiated and transition to actuation waiting of the call receiving takes place. After the timer is expired, the actuation of the call receiving is executed; and if the communication is disconnected before the timer has expired, transition to the initial state takes place. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Industrial applications]
The present invention relates to a communication terminal and an incoming call method used therefor, and more specifically, a communication terminal capable of not performing an incoming call operation when a disconnection signal is received within a predetermined period after receiving a call setting signal and the communication terminal. Regarding the incoming call method.
[0002]
[Prior art]
In recent years, nuisance calls and prank calls have been increasing in mobile phone devices. There is a method in which a call from a caller who does not notify the caller number is cut off by sending a message notifying the caller the caller number, as a non-reception call rejection.
[0003]
In addition, there is a method of setting an incoming call permission or rejection for a specific telephone number to prevent unwanted calls (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP 09-18576 A
[0005]
[Problems to be solved by the invention]
Recently, the number of nuisance calls that notify a calling number, ring a ringtone once, and disconnect the call has increased. The purpose of this telephone is to leave a call history of an unspecified number of other telephones and make a return call to connect to a paid information providing service. In order to reject such a call, it is necessary to register the telephone number and reject the call, and the telephone directory memory is used only for rejecting the call. Also, when only a specific number is permitted to receive a call, it is necessary to set the incoming call permission.In addition, the incoming call operation is performed, the other party is notified that the incoming call is rejected, and the operation is terminated. Will remain.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problem, and has as its object to provide a communication terminal that rejects an unwanted call using a memory of the communication terminal without setting a call rejection. .
[0007]
[Means for Solving the Problems]
In order to solve the problem in the first period, the present invention is configured such that a predetermined interval is provided after a communication terminal receives a call setting signal, and a receiving operation is not performed when a disconnection signal is received during the interval. It was done.
[0008]
As a result, when the calling side makes a call such as a single call to disconnect in a very short time, it is possible for the called side to not perform the incoming call operation. This has a great effect of preventing unwanted calls that are frequently made at midnight.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, a communication terminal capable of setting up a call with at least one communication terminal and performing voice, video, or data communication and receiving a call signal generation instruction is provided. A function of starting a timer in accordance with the instruction, and a function of starting an incoming call operation after the expiration of the timer, whereby the incoming call operation is started after a certain period of time after the generation of the incoming signal. Therefore, there is an effect that the incoming call operation is not performed for the disconnected call immediately after the incoming call.
[0010]
The invention according to claim 2 is a communication terminal capable of performing a voice, video, or data communication by setting a call with at least one communication terminal, a function of receiving an instruction to generate an incoming signal, and A function to start a timer, and a function to enter a standby state without performing an incoming call operation when a call disconnection is detected before the timer expires. This has the effect of not performing an incoming call operation when a call is disconnected shortly after signal generation.
[0011]
The invention according to claim 3 is the communication terminal according to claim 1 or 2, characterized in that the communication terminal has a function of setting an expiration time of the timer by a user of the communication terminal. In addition, the user of the communication terminal can appropriately set the interval until the start of the incoming call operation, so that even if the calling time of the nuisance communication fluctuates, it can cope with each time.
[0012]
According to a fourth aspect of the present invention, there is provided an incoming call method for a communication terminal capable of setting up a call with at least one communication terminal to perform voice, video, or data communication, and receiving an instruction to generate an incoming signal. A procedure for starting a timer in accordance with the instruction, and a procedure for starting an incoming call operation after the expiration of the timer, whereby the incoming call operation is started after a certain period of time after the generation of the incoming signal. Therefore, there is an effect that the incoming call operation is not performed for the disconnected call immediately after the incoming call.
[0013]
According to a fifth aspect of the present invention, there is provided an incoming call method for a communication terminal capable of setting up a call with at least one communication terminal and performing voice, video, or data communication, and receiving an instruction to generate an incoming signal. A procedure for activating a timer according to the instruction, and a procedure for entering a standby state without performing an incoming call operation when a call disconnection is detected before the timer expires. Accordingly, when the call is disconnected shortly after the generation of the incoming signal, the incoming call operation is not performed.
[0014]
According to a sixth aspect of the present invention, there is provided a communication terminal capable of establishing a call with a source communication terminal capable of notifying an identification code to a communication partner and performing voice, video, or data communication. A function of receiving whether or not the identification code of the originating terminal exists in the database of the own terminal, and a function of immediately starting an incoming operation when the identification code exists in the database. Thus, when the calling terminal can be identified and trusted, the receiving operation can be immediately performed without delay.
[0015]
According to a seventh aspect of the present invention, there is provided a communication terminal capable of establishing a call with a source communication terminal capable of notifying an identification code to a communication partner and performing voice, video, or data communication. A function of receiving the identification code of the originating terminal, a function of searching whether or not the identification code of the originating terminal exists in the database of the own terminal, and a function of starting a timer when the identification code does not exist in the database. A function of starting an incoming call operation after the expiration of the timer, whereby when the calling terminal cannot be specified, the incoming call operation can be started after a certain period of time after the generation of the incoming call signal. Therefore, there is an effect that the incoming call operation is not performed for the disconnected call immediately after the incoming call.
[0016]
The invention according to claim 8 is a communication terminal that can set up a call with a source communication terminal capable of notifying an identification code to a communication partner and perform voice, video, or data communication. A function of receiving the identification code of the originating terminal, a function of searching whether or not the identification code of the originating terminal exists in the database of the own terminal, and a function of starting a timer when the identification code does not exist in the database. When a call disconnection is detected before the timer expires, a function to enter a standby state without performing an incoming call operation is provided, whereby when a calling terminal cannot be specified, This has the effect of not performing the incoming call operation when the call is disconnected shortly after the generation of the incoming signal.
[0017]
According to a ninth aspect of the present invention, in the communication terminal according to any one of the sixth to eighth aspects, the communication terminal has a function of setting an expiration time of the timer by a user of the communication terminal. This allows the user of the communication terminal to appropriately set the interval until the start of the incoming call operation, and has an effect of being able to cope with each time even if the calling time of the unwanted communication changes.
[0018]
According to a tenth aspect of the present invention, there is provided a method for terminating a communication terminal capable of establishing a call with a source communication terminal capable of notifying an identification code to a communication partner and performing voice, video, or data communication. A step of searching whether or not the identification code of the transmitting terminal exists in the database of the own terminal, and a step of immediately starting a receiving operation when the identification code is present in the database. This has the effect that the incoming operation can be performed immediately without delay when the calling terminal is identified and trusted.
[0019]
The invention according to claim 11 is an incoming call method for a communication terminal capable of setting up a call with a source communication terminal capable of notifying an identification code to a communication partner and performing voice, video, or data communication. A procedure for retrieving whether or not the identification code of the transmitting terminal exists in the database of the own terminal; a procedure for starting a timer when the identification code does not exist in the database; and a receiving operation after the expiration of the timer. Starting a call after a certain period of time after the generation of an incoming signal. This has the effect of not performing an incoming call operation on a called call.
[0020]
According to a twelfth aspect of the present invention, there is provided an incoming call method for a communication terminal capable of setting up a call with a source communication terminal capable of notifying an identification code to a communication partner and performing voice, video, or data communication. Receiving the identification code of the calling terminal, searching for the identification code of the calling terminal in the database of the own terminal, and starting the timer when the identification code does not exist in the database. And a procedure to enter a standby state without performing an incoming call operation when a call disconnection is detected before the timer expires, whereby the calling terminal cannot be specified. In this case, when the call is disconnected shortly after the generation of the incoming signal, there is an effect that the incoming operation is not performed.
[0021]
According to a thirteenth aspect of the present invention, in the communication terminal according to any one of the sixth to ninth aspects, the identification code is a telephone number. In a system that communicates with a mobile phone, an unwanted communication is prevented.
[0022]
According to a fourteenth aspect of the present invention, in the communication terminal according to any one of the sixth to ninth aspects, the identification code is an IP address. In a system that communicates with a mobile phone, an unwanted communication is prevented.
[0023]
According to a fifteenth aspect of the present invention, in the communication terminal according to any one of the sixth to ninth aspects, the identification code is a MAC address. In a system that communicates with a mobile phone, an unwanted communication is prevented.
[0024]
According to a sixteenth aspect of the present invention, in the communication terminal according to any one of the sixth to ninth aspects, the identification code is a name of a subscriber of a source communication terminal. This has the effect of preventing unsolicited communication in a system in which the other party specifies the other party and performs communication.
[0025]
According to a seventeenth aspect of the present invention, in the communication terminal according to any one of the sixth to ninth aspects, the identification code is a name of a user of a source communication terminal. This has the effect of preventing unwanted communication in a system in which a user specifies a communication partner and performs communication.
[0026]
The invention according to claim 18 is characterized in that the identification code in the incoming call method according to any one of claims 10 to 12 is a telephone number, whereby the other party is specified by the telephone number. In a system that communicates with a mobile phone, an unwanted communication is prevented.
[0027]
According to a nineteenth aspect of the present invention, in the incoming call method according to any one of the tenth to twelfth aspects, the identification code is an IP address. In a system that communicates with a mobile phone, an unwanted communication is prevented.
[0028]
According to a twentieth aspect of the present invention, in the method for terminating a call according to any one of the tenth to twelfth aspects, the identification code is a MAC address. This has the effect of preventing unwanted communication in a communication system.
[0029]
According to a twenty-first aspect of the present invention, in the incoming call method according to any one of the tenth to twelfth aspects, the identification code is a name of a subscriber of a communication terminal of a transmission source. This has the effect of preventing unsolicited communication in a system in which the other party specifies the other party and performs communication.
[0030]
According to a twenty-second aspect of the present invention, in the method for receiving a call according to any one of the tenth to twelfth aspects, the identification code is a name of a user of the communication terminal of the transmission source. This has the effect of preventing unwanted communication in a system in which a user specifies a communication partner and performs communication.
[0031]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0032]
(Embodiment 1)
1 to 4 show an example of a communication terminal according to Embodiment 1 of the present invention.
[0033]
FIG. 1 is a block diagram illustrating a configuration of a communication terminal. In FIG. 1, reference numeral 101 denotes a transmission / reception processing unit that demodulates or modulates a reception or transmission signal, and 102 separates or adds audio / video information, data such as an e-mail or a file, and control information, and transmits / receives a signal to / from a network. An access control unit 103 for controlling timing compresses the audio or video signal input from the microphone 110 or the camera 112, expands the audio or video information input from the access control unit 102, and outputs it to the speaker 111 or the display 113. A codec unit 104 for performing a basic operation such as an outgoing call operation or an incoming call operation, and a control unit 105 for performing a process for controlling the entire operation of the communication terminal such as activation of an application corresponding to received data; PC, navigation system or various network devices An external interface unit for connecting the communication terminal with the communication terminal; 106, an incoming operation control unit for receiving an incoming signal from the control unit 104 and controlling the incoming operation; 107, a flash memory for recording telephone directory data and incoming history information , 116 are input devices for setting and inputting telephone number input, character input and the like. An SW 109 is a switch for switching between transmission and reception, and for selecting and using a sensitive antenna among a plurality of antennas.
[0034]
The operation of the communication terminal configured as described above will be described.
[0035]
The transmission / reception processing unit 101 converts the signal received from the antenna 119 into a digital signal that has been demodulated and output to the access control unit 102, and converts the digital signal output from the access control unit 102 into an analog signal. Then, a process of performing modulation and frequency conversion and outputting the result to the antenna 119 via the SW 109 is performed.
[0036]
The access control unit 102 adds control information to the signal input from the codec unit 103 and outputs the control information to the transmission / reception processing unit 101 when the communication apparatus acquires an access right in accordance with the access method specified by the network. Then, it separates the signal input from the transmission / reception processing unit 101 into audio / image information and data and control information such as e-mails and files, and outputs the audio / image information to the codec unit 103 and the others to the control unit 104. Here, the access method specified by the network includes TDMA, CDMA, CSMA / CA used in a wireless LAN system, CSMA / CD used in a wired LAN system, , ATM or the like.
[0037]
The codec unit 103 compresses the audio or video signal input from the microphone 110 or the camera 112 and outputs the compressed signal to the access control unit 102, and expands the audio or video information input from the access control unit 102. Alternatively, a process of outputting to the display 113 is performed.
[0038]
The control unit 104 outputs a call signal generation indicator to the incoming call operation control unit 106 when receiving a call setting signal from the network, and outputs a call disconnection indicator to the incoming call operation control unit 106 when receiving a disconnection signal from the network. Processing, processing for performing basic operations such as calling operation and receiving operation, and processing for controlling overall operation of the communication terminal, such as activation of an application corresponding to received data, are performed. The ROM 117 stores a program executed by the control unit 104, and the RAM 118 is used as a work area of the control unit 104.
[0039]
The external interface unit 105 is an interface for connecting the personal computer and the communication terminal, the navigation system and the communication terminal, or various network devices and the communication terminal, that is, connecting the external device and the communication terminal. , PCMCIA, RS232C, USB, IEEE1394, IEEE802.11, UWB, Bluetooth, or the like, or a plurality thereof.
[0040]
Upon receiving the incoming signal generation indicator from control unit 104, incoming call operation control unit 106 starts a timer to wait for an incoming call operation, and receives a call disconnection indicator from control unit 104 in the incoming call waiting state. And a process of returning to the initial state without performing the incoming call operation from the incoming call waiting operation. When the timer expires in the incoming call waiting state, the incoming call operation is started and the telephone number and the corresponding telephone directory data stored in the flash memory 107 are read. A process of displaying the display 113 and / or generating a ring tone and / or activating the vibrator 114 as necessary, and a history of the incoming call when a call is received or the call is disconnected or the call is disconnected. And storing information in the flash memory 107.
[0041]
The flash memory 107 stores an identification code unique to the communication terminal, a telephone number, an application downloaded from an external network, and telephone directory data. Also, the outgoing / incoming call history is stored.
[0042]
The key 116 is an input device for setting and inputting telephone number input, character input, various modes of the communication terminal, on-hook, off-hook, and the like.
[0043]
FIG. 2 is a state transition diagram of the incoming call operation control unit 106 in the communication terminal of the present invention, FIGS. 3 and 4 show an incoming call sequence in the communication terminal of the present invention, and FIG. Indicates a case where the communication partner disconnects the call immediately after making the call.
[0044]
The normal operation will be described with reference to FIGS. The receiving operation control unit 106 is in an initial state after the power of the communication terminal is turned on (201). When a call setting signal is sent from the network to the communication terminal (S301), and the communication terminal receives the call setting signal, the control unit 104 generates an incoming signal generation indicator (S302) and passes it to the incoming operation control unit 106, The communication terminal transmits a calling signal to the network based on the access method defined in the network (S303).
[0045]
Upon receiving the incoming signal generation indicator (S302), the incoming call operation control unit 106 activates a timer (S304), transitions to an incoming call waiting state (202), and waits until a preset time has expired. . Here, the expiration time of the timer is, for example, 5 seconds. If the communication terminal does not receive the disconnection signal until the timer expires, when the timer expires (S305), the communication terminal transitions to the receiving operation state (203), and the display 113 identifies the other party such as the telephone number of the calling party. The information is displayed, and either or both of generation of the ringtone 115 and activation of the vibrator 114 are performed as necessary. After the incoming call operation, when the user of the communication terminal goes off-hook (S306), or when the communication terminal automatically answers and goes off-hook, a response signal is transmitted to the network (response). If a response signal from the communication terminal is confirmed in the network and the call is not disconnected, a response confirmation signal is transmitted from the network to the communication terminal (response confirmation), and when the communication terminal receives the response confirmation signal, the call is terminated. Be started. When the communication terminal is in a call (S309), information such as the telephone number and name of the calling party and an indicator indicating that the call has been made are stored in the flash memory 107 as an incoming call history, and the state transits to the initial state (201).
[0046]
Also, when the communication terminal receives the disconnection signal during the incoming call operation and the incoming call operation control unit 106 receives the call disconnection indicator from the control unit 104, the call is not communicated with information such as the telephone number and name of the caller. An indicator indicating that the call is absent (missed call) is stored in the flash memory 107 as an incoming call history, and the state transits to the initial state (201).
[0047]
A case where a communication partner disconnects a call immediately after making a call will be described with reference to FIGS. The receiving operation control unit 106 is in an initial state after the power of the communication terminal is turned on (201). When a call setting signal is sent from the network to the communication terminal (S401), and the communication terminal receives the call setting signal, the control unit 104 generates an incoming signal generation indicator (S402) and passes it to the incoming operation control unit 106. The communication terminal transmits a calling signal to the network based on an access method defined in the network (S404).
[0048]
Upon receiving the incoming signal generation indicator (S402), the incoming operation control unit 106 activates a timer (S403), transitions to an incoming operation waiting state (202), and waits until a preset time has expired. Here, the expiration time of the timer is, for example, 5 seconds.
[0049]
When the communication terminal receives the disconnection signal transmitted from the network before the timer expires (S405) and the incoming call operation control unit 106 receives the call disconnection indicator from the control unit 104, the timer is reset to the initial state ( (S406). At this time, the process of storing information such as the telephone number and name of the calling party and an indicator indicating that the call was not made (missed call) in the flash memory 107 is not performed.
[0050]
Although the expiration time of the timer is set to 5 seconds in the present embodiment, this value may be appropriately changed. Further, a setting mode of the expiration time may be provided in the communication terminal, and the user of the communication terminal may individually set the mode by key input.
[0051]
As described above, in the present embodiment, after the communication terminal receives the call setting signal from the network, the reception operation is delayed and started for a certain interval, so that the user leaves only the reception history in the communication terminal. Omitting the procedure to set the call rejection from the source of such unwanted communication, omission of the memory area for registering the identification code of the caller who rejects the call, unsolicited communication that leaves only the call history in the communication terminal It is possible to provide an excellent communication terminal that avoids an incoming call operation due to an error and that does not leave a history thereof.
[0052]
(Embodiment 2)
5 to 9 show an example of a communication terminal according to Embodiment 2 of the present invention.
[0053]
FIG. 5 is a block diagram illustrating a configuration of the communication terminal. The second embodiment is different from the first embodiment in that the telephone number of the caller is provided by the identification code search unit 508 provided in the incoming call operation control unit 506 in the telephone directory data stored in the flash memory 507. The difference is that the search is performed. Whether or not the search is different is mainly described.
[0054]
The control unit 504 outputs a telephone number included in the call setting signal together with an incoming signal generation indicator to the identification code searching unit 508 upon receiving a call setting signal from the network, and performs an incoming call operation control upon receiving a disconnection signal from the network. A process for outputting a call disconnection indicator to the unit 506, a process for performing a basic operation such as an outgoing call operation or an incoming call operation, and a process for controlling the entire operation of the communication terminal, such as activation of an application corresponding to received data. . The ROM 117 stores a program executed by the control unit 504, and the RAM 118 is used as a work area of the control unit 504.
[0055]
The identification code search unit 508 is provided in the incoming call operation control unit 506, and upon receiving an incoming signal generation indicator from the control unit 504, stores the telephone number of the transmission source received together with the incoming signal generation indicator in the flash memory 507. Is searched for in the telephone directory data stored in. If there is a match, an identification code match indicator is passed to the incoming call control unit 506 if there is no match.
[0056]
Receiving operation control section 506 starts processing when receiving an identification code matching indicator from identification code searching section 508, and starts a timer when receiving an identification code mismatching indicator from identification code searching section 508. When a call disconnection indicator is received from the control unit 504 in the incoming call operation waiting state, the process returns to the initial state without performing the incoming call operation from the incoming call operation waiting state. Upon expiration, an incoming call operation is started to display the display 113 of the telephone number and the corresponding telephone directory data stored in the flash memory 507 and, if necessary, to generate a ring tone 115 or to activate the vibrator 114 or both; The incoming call history information is stored in the flash memory 50 either during communication when the incoming call operation is performed or when the call is disconnected. And a process of storing the performed.
[0057]
Other functional blocks are as described in the first embodiment.
[0058]
FIG. 6 is a state transition diagram of the incoming call operation control unit 506 in the communication terminal of the present invention, FIGS. 7 to 9 show an incoming call sequence in the communication terminal of the present invention, and FIG. FIG. 8 shows an incoming call from a caller not registered in the phonebook data, and FIG. 9 shows a caller not registered in the phonebook data immediately after calling. This shows a case where the call is disconnected.
[0059]
A case of an incoming call from a caller registered in the telephone directory data will be described with reference to FIGS.
[0060]
The incoming call operation control unit 506 is in an initial state after the power of the communication terminal is turned on (601). When a call setting signal is sent from the network to the communication terminal (S701) and the communication terminal receives the call setting signal, the control unit 504 generates an incoming signal generation indicator (S702), and the identification in the incoming operation control unit 506 is performed. The communication terminal transmits the call signal to the code search unit 508 to the network based on the access method defined in the network (S703).
[0061]
Upon receiving the incoming signal generation indicator (S702), the identification code searching unit 508 searches whether or not the telephone number of the caller exists in the telephone directory data of the own communication terminal. If the data exists in the telephone directory data, the identification code matching indicator is passed to the incoming call operation control unit 506 (S703). Upon receiving the identification code matching indicator, the incoming call operation control unit 506 transitions to the incoming call operation state (603), displays information identifying the other party such as the name of the caller on the display 114, and if necessary, the ringtone 115. Either generation or activation of the vibrator 114 or both are performed. After the incoming call operation, when the user of the communication terminal goes off-hook (S705), or when the communication terminal automatically answers and goes off-hook, a response signal is transmitted to the network (S706). If the response signal from the communication terminal is confirmed in the network and the call is not disconnected, a response confirmation signal is transmitted from the network to the communication terminal (S707). When the communication terminal receives the response confirmation signal, the call starts. Is done. When the communication terminal is engaged in a call (S708), information such as the telephone number and name of the caller and an indicator indicating that the call has been made are stored in the flash memory 507 as an incoming call history, and a transition is made to the initial state (601).
[0062]
Also, when the communication terminal receives the disconnection signal during the incoming call operation and the incoming call operation control unit 506 receives the call disconnection indicator from the control unit 504, the communication terminal does not talk with information such as the telephone number and name of the caller. An indicator indicating the fact (missed call) is stored in the flash memory 507 as an incoming call history, and the state transits to the initial state (601).
[0063]
Next, a case of an incoming call by a normal call from a caller who is not registered in the telephone directory data will be described with reference to FIGS.
[0064]
The incoming call operation control unit 506 is in an initial state after the power of the communication terminal is turned on (601). When a call setting signal is sent from the network to the communication terminal (S801) and the communication terminal receives the call setting signal, the control unit 504 generates an incoming signal generation indicator (S802), and the identification in the incoming operation control unit 506 is performed. The communication terminal transmits the call signal to the code search unit 508 to the network based on the access method defined in the network (S805). Upon receiving the incoming signal generation indicator (S802), the identification code searching unit 508 searches whether or not the telephone number of the caller exists in the telephone directory data of the own communication terminal. If there is no such data in the telephone directory data, the identification code mismatch indicator is passed to the incoming call operation control unit 506 (S803).
[0065]
Upon receiving the identification code mismatch indicator, the incoming call operation control unit 506 starts a timer (S804), transitions to an incoming call operation waiting state (602), and waits until a preset time has expired. Here, the expiration time of the timer is, for example, 5 seconds. If the communication terminal does not receive the disconnection signal until the timer expires, the communication terminal transitions to the receiving operation state (603) when the timer expires (S806), and identifies the other party such as the telephone number of the calling party on the display 113. The information is displayed, and either or both of generation of the ringtone 115 and activation of the vibrator 114 are performed as necessary. After the incoming call operation, when the user of the communication terminal goes off-hook (S807), or when the communication terminal automatically answers and goes off-hook, a response signal is transmitted to the network (S808). If a response signal from the communication terminal is confirmed in the network and the call is not disconnected, a response confirmation signal is transmitted from the network to the communication terminal, and when the communication terminal receives the response confirmation signal (S809), the call starts. Is done. When the communication terminal is busy (S810), information such as the telephone number and name of the caller and an indicator indicating that the call has been made are stored in the flash memory 507 as an incoming call history, and the state transits to the initial state (601).
[0066]
Also, when the communication terminal receives the disconnection signal during the incoming call operation and the incoming call operation control unit 506 receives the call disconnection indicator from the control unit 504, the communication terminal does not talk with information such as the telephone number and name of the caller. An indicator indicating the fact (missed call) is stored in the flash memory 507 as an incoming call history, and the state transits to the initial state (601).
[0067]
Next, a case where the communication partner disconnects the call immediately after making the call will be described with reference to FIGS. The incoming call operation control unit 506 is in an initial state after the power of the communication terminal is turned on (601). When a call setting signal is sent from the network to the communication terminal (S901) and the communication terminal receives the call setting signal, the control unit 504 generates an incoming signal generation indicator (S902), and the identification in the incoming operation control unit 506 is performed. The communication terminal transmits the call signal to the code search unit 508 to the network based on the access method defined in the network (S905).
[0068]
Upon receiving the incoming signal generation indicator (S902), the identification code searching unit 508 searches whether or not the telephone number of the caller exists in the telephone directory data of the own communication terminal. If there is no such data in the telephone directory data, the identification code mismatch indicator is passed to the incoming call operation control unit 506 (S903). Upon receiving the identification code mismatch indicator, the incoming call operation control unit 506 activates a timer (S904), transitions to an incoming call operation waiting state (602), and waits until a preset time has expired. Here, the expiration time of the timer is, for example, 5 seconds.
[0069]
When the disconnection signal is received by the communication terminal before the timer expires (S906), and the incoming call operation control unit 506 receives the call disconnection indicator from the control unit 504, the timer is reset and transited to the initial state (601). (S907). At this time, the process of storing information such as the telephone number and name of the calling party and an indicator indicating that the call was not made (missed call) in the flash memory 507 is not performed.
[0070]
Although the expiration time of the timer is set to 5 seconds in the present embodiment, this value may be appropriately changed. Further, a setting mode of the expiration time may be provided in the communication terminal, and the user of the communication terminal may individually set the mode by key input.
[0071]
As described above, in the present embodiment, after the communication terminal receives the call setting signal from the network, the identification code of the caller searches the telephone directory data of the own terminal, and the corresponding identification code in the telephone directory data. If there is, the incoming call operation is started immediately, and if the corresponding identification code does not exist in the telephone directory data, the incoming call operation is started after being delayed by a certain interval, so that the user can recognize it. Even when a call is made by a communication partner that is immediately disconnected after a call is made, the call is received, the call history is recorded, and the user is notified that a communication request has occurred. In the case of a call from a source of unsolicited communication that leaves only a call, the procedure for setting the call rejection to invalidate the incoming call is omitted, and the identification code of the caller who rejects the call is registered. It does not require a space to avoid incoming operation according to only leave such unsolicited communication received call history to the communication terminal, and further can provide an excellent communication terminal such, does not leave its history.
[0072]
In the first and second embodiments, the configuration of the terminal is exemplified by the Japanese digital cellular phone system (PDC system). However, by replacing the transmitting / receiving unit and the access control unit with those of the system, the IMT-type is realized. The present invention is applicable to general communication terminals such as a 2000-compatible terminal, a W-CDMA-compatible terminal, a fixed telephone, a VoIP terminal, a wireless LAN terminal, and a packet communication terminal.
[0073]
In the present embodiment, a telephone number is used as an identification code for identifying a communication terminal. However, any telephone code can be used as long as it can uniquely identify a communication terminal. For example, the MAC address, IP address, mail address, URL of the communication terminal An identification code such as an address, an address, a user's name, and a user's contractor's name may be used, or a combination of these may be used. In this case, an appropriate identification code is stored in the flash memory of the communication terminal. In VoIP, an IP address, a URL address, and the like are identification codes. At this time, the procedure for setting up the call is H.264. H.323 and SIP (Session Initiation Protocol). For example, H. In H.323, the call setup signal in the sequence diagram shown in FIG. 4 and the like corresponds to a Setup message, and the disconnection signal corresponds to an EndSession message. Further, for example, in SIP, the call setting signal corresponds to INVITE, and the disconnection signal corresponds to CANCEL.
[0074]
【The invention's effect】
As described above, according to the present invention, a configuration is provided in which a predetermined interval is provided after a communication terminal receives a call setup signal, and a receiving operation is not performed when a disconnection signal is received during that interval. By doing so, it is possible to prevent nuisance calls from being received without using the memory of the communication terminal, and since it does not remain in the received call history, there is a great effect of preventing accidental calls to the source of nuisance calls. Can be
[0075]
Further, according to the present invention, the communication terminal searches whether or not the identification code of the caller exists in the communication partner database of the own terminal, and if it exists, performs the incoming call operation immediately. The interval is set, and if a disconnection signal is received during that time, the incoming call operation is not performed and the incoming call history is not left, so that the incoming call operation of the nuisance call can be prevented without using the memory of the communication terminal, There is a great effect that a call can be immediately received from a specific partner.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a communication terminal according to Embodiment 1 of the present invention.
FIG. 2 is a diagram showing a state transition in an incoming call operation control unit of the communication terminal according to Embodiment 1 of the present invention.
FIG. 3 is a diagram showing a normal incoming call sequence in the communication terminal according to Embodiment 1 of the present invention.
FIG. 4 is an incoming call sequence diagram in a case where a communication partner disconnects a call immediately after making a call in the communication terminal according to Embodiment 1 of the present invention.
FIG. 5 is a block diagram showing a configuration of a communication terminal according to Embodiment 2 of the present invention.
FIG. 6 is a state transition diagram in an incoming call operation control unit of a communication terminal according to Embodiment 2 of the present invention.
FIG. 7 is an incoming call sequence diagram when the communication terminal according to Embodiment 2 of the present invention has the identification code of the caller in the database.
FIG. 8 is a diagram showing a normal incoming call sequence when the communication terminal according to Embodiment 2 of the present invention does not have the identification code of the caller in the database.
FIG. 9 is an incoming call sequence diagram in the case where the communication terminal of the communication terminal according to Embodiment 2 of the present invention does not own the identification code of the caller and disconnects the call immediately after the call is made.
[Explanation of symbols]
101 transmission / reception processing unit
102 Access control unit
103 Codec section
104, 504 control unit
105 External interface
106, 506 Incoming operation control unit
107, 507 Flash memory
109 SW
110 microphone
111 speaker
112 camera
113 Display
114 vibrator
115 speaker
116 keys
117 ROM
118 RAM
119 antenna
508 Identification code search unit

Claims (22)

A communication terminal capable of setting up a call with at least one communication terminal and performing voice, video, or data communication, a function of receiving an instruction to generate an incoming signal, a function of activating a timer according to the instruction, A communication terminal having a function of starting an incoming call operation after a timer expires. A communication terminal capable of setting up a call with at least one communication terminal and performing voice, video, or data communication, a function of receiving an instruction to generate an incoming signal, a function of activating a timer according to the instruction, A communication terminal having a function of entering a standby state without performing an incoming call operation when a call disconnection is detected before a timer expires. The communication terminal according to claim 1, further comprising a function of setting an expiration time of the timer by a user of the communication terminal. In a method of receiving a communication terminal capable of performing a voice, video, or data communication by setting a call with at least one communication terminal, a procedure for receiving an instruction for generating an incoming signal, and a procedure for starting a timer based on the instruction And a procedure for starting an incoming call operation after the timer expires. In a method of receiving a communication terminal capable of performing a voice, video, or data communication by setting a call with at least one communication terminal, a procedure for receiving an instruction for generating an incoming signal, and a procedure for starting a timer based on the instruction And a procedure for, when a call disconnection is detected before the timer expires, entering a standby state without performing an incoming call operation. A function of setting a call with a source communication terminal capable of notifying a communication partner of an identification code, and a function of receiving an identification code of the transmission terminal in a communication terminal capable of performing voice, video, or data communication; A communication characterized by having a function of searching whether or not an identification code of a calling terminal exists in a database of its own terminal and a function of immediately starting an incoming call operation when the identification code exists in the database. Terminal. A function of setting a call with a source communication terminal capable of notifying a communication partner of an identification code, and a function of receiving an identification code of the calling terminal in a communication terminal capable of performing voice, video, or data communication; A function of searching whether or not the identification code of the calling terminal exists in the database of the own terminal; a function of starting a timer when the identification code does not exist in the database; and a function of arriving after the expiration of the timer. A communication terminal having a function of starting. A function of setting a call with a source communication terminal capable of notifying a communication partner of an identification code, and a function of receiving an identification code of the calling terminal in a communication terminal capable of performing voice, video, or data communication; A function for searching whether or not the identification code of the calling terminal exists in the database of the own terminal; a function for starting a timer when the identification code does not exist in the database; and a function for calling before the timer expires. A communication terminal having a function of entering a standby state without performing an incoming call operation when disconnection is detected. 9. The communication terminal according to claim 6, wherein the communication terminal has a function of setting an expiration time of the timer by a user of the communication terminal. In a receiving method of a communication terminal that can set up a call with a source communication terminal capable of notifying an identification code to a communication partner and perform voice, video, or data communication, the identification code of the calling terminal is determined by the own terminal. A method for searching whether or not the data is present in the database, and a procedure for immediately starting a call receiving operation when the identification code is present in the database. In a receiving method of a communication terminal that can set up a call with a source communication terminal capable of notifying an identification code to a communication partner and perform voice, video, or data communication, the identification code of the calling terminal is determined by the own terminal. A step of searching whether or not it exists in the database, a step of starting a timer when the identification code does not exist in the database, and a step of starting an incoming call operation after the expiration of the timer. Characteristic incoming call method. Receives an identification code of a calling terminal in a method of receiving a communication terminal capable of setting up a call with a source communication terminal capable of notifying a communication partner of an identification code and communicating voice, video, or data. A procedure for searching whether or not the identification code of the calling terminal exists in the database of the own terminal; a procedure for starting a timer when the identification code does not exist in the database; and the timer expiring. Receiving a call disconnection beforehand and entering a standby state without performing an incoming call operation. 10. A communication terminal according to claim 6, wherein the identification code is a telephone number. 10. The communication terminal according to claim 6, wherein the identification code is an IP address. 10. The communication terminal according to claim 6, wherein the identification code is a MAC address. The communication terminal according to claim 6, wherein the identification code is a name of a subscriber of a communication terminal of a transmission source. 10. The communication terminal according to claim 6, wherein the identification code is a name of a user of the communication terminal of the transmission source. 13. A method according to claim 10, wherein said identification code is a telephone number. 13. A method according to claim 10, wherein said identification code is an IP address. 13. The method according to claim 10, wherein the identification code is a MAC address. 13. The receiving method according to claim 10, wherein the identification code is a name of a subscriber of a communication terminal of a transmission source. 13. The method according to claim 10, wherein the identification code is a name of a user of the communication terminal of the transmission source.

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