JP4992541B2 - Hands-free call device, hands-free call system, and method for making international calls in hands-free call device - Google Patents

Description

  The present invention relates to a hands-free call device, a hands-free call system, and a method for making an international call in a hands-free call device.

  Patent Document 1 discloses a telephone that can display an incoming telephone number or call back to an incoming telephone number.

JP 2003-258987 A (summary etc.)

  In recent years, when making a call in an automobile or the like, a hands-free call device is used. This hands-free call device is installed in a vehicle together with, for example, a mobile phone and enables a call via this mobile phone. As a result, the driver can make a call without operating the mobile phone.

  By the way, in this hands-free call device, it is conceivable to make a call using a history of the incoming telephone number notified from a mobile phone or the like like the telephone of Patent Document 1.

  However, when the telephone number registered in the incoming call history is an international telephone number, the hands-free call device may not be able to make a call using the telephone number in the incoming call history.

  For example, some mobile phones with European specifications notify only hands of the numeric part of the incoming telephone number to the hands-free telephone. In other words, the phone ignores the “+” (symbol indicating that it is an international call) at the beginning of the incoming international phone number and notifies only the numeric part of the incoming international phone number to the hands-free calling device. There is. And, in the hands-free call device, such abbreviated international phone number is registered as the incoming call history, so the hands-free call device can make a call using the international phone number in the incoming call history. It will disappear.

  The same problem occurs when the incoming international telephone number is registered in the telephone directory database of the hands-free calling device.

  An object of the present invention is to provide a hands-free call device, a hands-free call system, and a method for making an international call in a hands-free call device, which can make a telephone call with an international telephone number reliably.

The hands-free call device according to the present invention allows a telephone to make a call based on a telephone number, thereby enabling a call via the telephone. And this hands-free call device has a storage means for storing a telephone number, an acquisition means for acquiring a telephone number from the storage means, and the first digit of the telephone number acquired by the acquisition means is a number other than 0. An adding means for adding a symbol for causing the telephone to make an international call at the beginning of the acquired telephone number, and a notifying means for notifying the telephone of the telephone number to which the symbol is added, the adding means, A symbol is added when the first digit of the history telephone number acquired by the acquisition means is a number other than 0, and when the history telephone number is not less than four digits.

Another hands-free call device according to the present invention allows a telephone to make a call based on a telephone number, thereby enabling a call via the telephone. The hands-free call device includes a history database that stores a call history phone number and / or a call history phone number, an acquisition unit that acquires a history phone number from the history database, and a history phone number acquired by the acquisition unit. If the first digit of the phone number is other than 0 and the history phone number is not 4 digits or less, a symbol for making the phone to make an international call is added at the beginning of the obtained history phone number. Adding means for adding, and notifying means for notifying the telephone of the history telephone number to which the symbol is added.

Another hands-free communication device according to the present invention has the following features in addition to the components of the above-described invention. In other words, the other hands-free call device further includes a telephone directory database for storing telephone directory telephone numbers, and telephone directory telephones whose lower digits match the historical telephone number acquired from the historical database by the acquiring means with a predetermined number of digits or more. Second acquisition means for acquiring a number from a telephone directory database. Then, the adding means sets the first digit for the telephone number having the larger number of digits in the history telephone number acquired by the acquiring means and the telephone directory telephone number acquired by the second acquiring means. Furthermore, the phone number of the phone book whose phone number matches the lower digits in the length longer than the specified number of digits and the history phone number acquired from the history database by the acquisition means is acquired from the phone book database, and the number of digits of the phone book phone number is the history phone number. If there are more digits than the number of digits, the phonebook phone number can be used as the destination phone number and the first digit can be determined.

  In the hands-free call system according to the present invention, when the hands-free call device according to each configuration of the above-described invention and the phone number to which a symbol for outgoing call is added are notified from the hands-free call device, And a telephone for making international calls.

  The hands-free call system according to the present invention has the following features in addition to the configuration of the above-described invention. That is, the telephone notifies the hands-free call device of only a part of the international telephone number that is notified when an incoming call is received.

The method for making an international call in the hands-free call device according to the present invention allows a telephone to make a call based on a telephone number, thereby enabling a call via the telephone. The method for making an international call in the hands-free call device includes a step of acquiring a telephone number from a storage means for storing a telephone number, and if the first digit of the acquired telephone number is a number other than 0, the acquisition is performed. the beginning of the telephone number, possess the step of adding the symbols for which the outgoing international calls to the telephone, and notifying a telephone number symbol is added to the phone, and the processing of the additional step, obtaining In the case where the first digit of the history telephone number acquired by the processing of the step is a number other than 0, and the history telephone number is not 4 digits or less, a process of adding a symbol is included .

  In the present invention, when the first digit of the acquired phone number is a number other than 0, a symbol for causing the phone to make an international call is added to the beginning of the acquired phone number and notified to the phone. It is possible to ensure that the telephone makes a call using an international telephone number.

  Hereinafter, a hands-free call device, a hands-free call system, and a method for making an international call in a hands-free call device according to an embodiment of the present invention will be described with reference to the drawings. The method for making an international call will be described as a part of the operation of the hands-free call device.

  FIG. 1 is a block diagram showing the configuration of the hands-free call system 1. The hands-free call system 1 includes a hands-free call device 2 and a mobile phone 3 as a kind of telephone.

  The hands-free call device 2 is installed, for example, in a vehicle such as an automobile, and outputs a short-range communication device 11, a display device 12 that displays an incoming or outgoing telephone number, a key device 13, and voice. A speaker 14, a microphone 15 that converts sound into an electrical signal, a memory 16 as storage means, a control unit 17, and the like are included. These devices and the like are operated by stored electric power of a battery such as a dry battery (not shown).

  The short-range communication device 11 communicates with other short-range communication devices (the short-range communication device 22 of the mobile phone 3 in FIG. 1) using short-range radio waves. The short-range communication device 11 transmits / receives a telephone number or call data of a call destination to / from another short-range communication device. Note that short-range wireless communication methods include those based on IEEE (the Institute of Electrical and Electronic Engineers) 802.11 standards such as Bluetooth and wireless LAN (Local Area Network). Further, as a radio frequency band used for short-distance communication such as in the home, there is a 2.4 GHz band, for example.

  The memory 16 is a semiconductor memory such as a flash memory, for example. The memory 16 stores a telephone directory database 18, a history database 19, and the like.

FIG. 2 is a data structure diagram showing an example of the history database 19. The history database 19 has a plurality of records for each incoming phone number notified from the mobile phone terminal 3 (hereinafter referred to as an incoming call notification phone number to distinguish it from the incoming phone number of the mobile phone terminal 3). Each record stores information such as an incoming call notification telephone number and an incoming time notified from the mobile phone 3. The history database 19 in FIG. 2 has an incoming call notification telephone number “30 212 3456 7890 ” notified from the mobile phone 3 when an incoming call is received from Mr. A who lives in Europe by an international call.

  When making an international call to Mr. A who lives in Europe, the international telephone number is “+30 212 3456 7890”. Therefore, the incoming call notification telephone number “30 212 3456 7890” of Mr. A residing in Europe registered in the history database 19 is compared with the international telephone number that can be called, the symbol “+ "Is deleted, and it consists only of the numeric part of the international telephone number. The mobile phone 3 cannot make an international call to Mr. A who lives in Europe using this incoming call notification telephone number.

  FIG. 3 is a data structure diagram showing an example of the telephone directory database 18. The telephone directory database 18 has a plurality of records for each telephone directory telephone number. Each record stores information such as a name in addition to a telephone directory telephone number. In the telephone book database 18, a plurality of telephone numbers (phone book telephone numbers) can be registered in association with their names. For example, the telephone directory database 18 in FIG. 3 includes a telephone number for Mr. A living in Europe (only the numeric part of the international telephone number) “30 212 3456 7890”, and a telephone number “ 03 4567 8901 ”, and the telephone number“ 104 ”of the telephone number inquiry destination in Japan. It should be noted that “30 212 3456 7890” is registered in the telephone directory database 18 by, for example, an incoming call history registration process.

  A control unit 17 in FIG. 1 functions as an acquisition unit, a second acquisition unit, an addition unit, and a notification unit. The control unit 17 controls the operation of the hands-free call device 2 and uses the hands-free call device 2. Realize incoming and outgoing calls. Further, the control unit 17 manages the telephone directory database 18 and the history database 19. Specifically, for example, the control unit 17 registers a telephone number in the telephone directory database 18 and the history database 19 or acquires a telephone number from the telephone directory database 18 and the history database 19.

  In addition, the cellular phone 3 in FIG. 1 displays a carrier communication device 21, a short-range communication device 22, a telephone number, and the like that transmit / receive a call request packet or a voice packet to / from a base station of a carrier not shown. It includes a device 23, a key device 24, a speaker 25 that outputs sound, a microphone 26 that converts sound into an electrical signal, a memory 27 that stores a telephone directory database 29, a history database 30, and the like, a control unit 28, and the like.

  The control unit 28 controls the operation of the mobile phone 3. Then, the control unit 28 realizes incoming and outgoing calls using only the mobile phone 3 or realizes incoming and outgoing calls using the mobile phone 3 and the hands-free call device 2. Further, the control unit 28 manages the telephone directory database 29 and the history database 19.

  Note that the other components of the mobile phone 3 have the same functions as the components of the same name in the above-described hands-free call device 2, and the description thereof is omitted.

  Further, the control unit 17 of the hands-free call device 2 and the control unit 28 of the mobile phone 3 read a program (not shown) stored in the memories 16 and 27 by a CPU (not shown) in a microcomputer (not shown), for example. It can be realized in these devices by executing.

  These programs may be recorded in the memories 16 and 27 before the shipment of these devices, or may be recorded in the memories 16 and 27 after the shipment of these devices. A part of these programs may be recorded in the memories 16 and 27 after the shipment of these devices. The programs recorded in the memories 16 and 27 after the shipment of these devices are installed programs recorded on a computer-readable recording medium such as a memory card or a CD-ROM (Compact Disc Read Only Memory). Even if it exists, what was downloaded via transmission media, such as the internet, may be installed.

  Next, the operation of the hands-free call system 1 having the above configuration will be described. In the following description, an incoming call operation and a outgoing call operation using the hands-free call device 2 and the mobile phone 3 will be described in particular.

  FIG. 4 is a timing chart showing the operation when the hands-free call device 2 and the mobile phone 3 receive a call.

  When the mobile phone 3 is brought into the vehicle, the short-range communication device 11 of the hands-free call device 2 starts communication for mutual authentication with the short-range communication device 22 of the mobile phone 3. And when these short-range communication devices 11 identify each other, they are in a state where they can transmit and receive data to each other (step ST1). Then, when the short-range communication device 22 is ready for data communication, the control unit 28 of the mobile phone 3 enters an automatic outgoing / incoming mode for a hands-free call (step ST2).

  In the automatic outgoing / incoming mode, the control unit 28 automatically connects the line after a predetermined period of time without a key operation to the mobile phone 3 and starts a call when receiving an incoming call. When there is a call instruction, the line is automatically connected and a call is started even if there is no key operation on a call button (not shown) of the key device 24 of the cellular phone 3.

  When the carrier communication device 21 receives a call request packet for an incoming call after setting the automatic call incoming / receiving mode (step ST3), the control unit 28 of the mobile phone 3 transmits an incoming call notification to the control unit 17 of the hands-free call device 2. (Step ST4). Actually, the control unit 28 extracts the incoming telephone number from the received call request packet, generates an incoming call notification having the numeric part (= incoming call telephone number) of the extracted incoming telephone number, and the short-range communication device 22. To supply. Then, the short-range communication device 22 wirelessly transmits the supplied incoming call notification to the short-range communication device 11 of the hands-free call device 2. The short-range communication device 11 of the hands-free call device 2 supplies the received incoming call notification to the control unit 17 of the hands-free call device 2. Thereby, the incoming call notification generated by the control unit 28 is transmitted to the control unit 17 of the hands-free call device 2.

  When receiving the incoming call notification including the incoming call notification telephone number, the control unit 17 of the hands-free call device 2 adds the notified incoming call notification telephone number to the history database 19 in association with the time (step ST5). As a result, a new incoming call notification telephone number is added to the history database 19.

For example, when the telephone number received by the mobile phone 3 is the international telephone number “+30 212 3456 7890” from Mr. A, the control unit 28 extracts only the numeric part “30 212 3456 7890” from the hand and extracts the hands. It transmits to the control part 17 of the free call apparatus 2. As a result, “30 212 3456 7890” is registered in the history database 19 of the handsfree call device 2 as shown in FIG .

  After registering the telephone number notified at the time of incoming call in the history database 19, the control unit 17 displays the additionally registered incoming call notification telephone number on the display device 12 (step ST6). For example, the display device 12 displays “30 212 3456 7890” in FIG. 3.

  While the incoming call processing based on the incoming call notification is performed in the hands-free call device 2, the mobile phone 3 that has received an incoming call automatically executes a line connection process after a predetermined time has elapsed from the incoming call (step ST7). . As a result, the mobile phone 3 is in a state in which a call can be made with the caller phone (step ST8).

  In this call-enabled state (step ST8), when receiving a voice packet from the line side, the control unit 28 of the mobile phone 3 passes it through the short-range communication device 22 and the short-range communication device 11 to the hands-free call device 2. To the control unit 17. The control unit 17 of the hands-free call device 2 generates a voice signal based on the received voice packet and supplies the voice signal to the speaker 14. The speaker 14 outputs the voice of the line connection destination encoded in the voice packet.

  Further, the microphone 15 of the hands-free communication device 2 converts the voice spoken in response to the microphone 15 into an electric signal. The control unit 17 in the call ready state (step ST8) encodes the voice electrical signal to generate a voice packet. Further, the control unit 17 transmits the generated voice packet to the control unit 28 of the mobile phone 3 via the short-range communication device 11 and the short-range communication device 22. When the control unit 28 receives a voice packet from the hands-free call device 2 side, it uses the carrier communication device 21 to transmit it to the connection destination of the line. A telephone (not shown) to which the line is connected reproduces the voice signal encoded in the voice packet.

  Through the above processing, the hands-free call device 2 and the mobile phone 3 can make a hands-free call when receiving an incoming call.

  FIG. 5 is a timing chart showing a call operation using an incoming call notification telephone number or the like registered in the history database 19 of the handsfree call device 2. The mutual authentication operation (steps ST11 and ST12) between the short-range communication device 11 of the hands-free call device 2 and the short-range communication device 22 of the mobile phone 3 is the same as that in FIG.

  The control unit 17 of the hands-free call device 2 selects one incoming call notification telephone number in the history database 19 based on the user's operation on the key device 24 of the hands-free call device 2 (step ST13). Thereafter, the control unit 17 confirms whether or not a telephone directory telephone number that matches the acquired telephone number is registered in the telephone directory database 18 before making a call instruction based on the telephone number acquired by the selection ( Step ST14). Note that the control unit 17 may acquire a telephone number by a number input operation to the key device 13 or the like.

  FIG. 6 is a flowchart showing the flow of registration confirmation processing executed by the control unit 17 in FIG.

  In the acquisition telephone number registration confirmation process, the control unit 17 of the hands-free call device 2 first determines whether or not the number of digits of the acquired telephone number is 4 digits or less (step ST21).

  When the number of digits of the acquired telephone number is not less than 4 digits (No in step ST21), the control unit 17 performs a comparison process between the acquired telephone number and all telephone directory telephone numbers registered in the telephone directory database 18. . Specifically, the control unit 17 reads one telephone directory telephone number from the telephone directory database 18 (step ST22), compares the acquired telephone number and the telephone directory telephone number in order from their last digits, and acquires them. It is determined whether or not the telephone number and the telephone directory telephone number partially match at least in the last five digits (step ST23). Note that the number of digits of the telephone numbers to be compared in this comparison processing is the shorter number of digits of the number of digits of the acquired telephone number and the number of digits of the telephone directory telephone number.

  When the acquired telephone number and the telephone directory telephone number partially match at least in the last five digits, the control unit 17 extracts the telephone directory telephone number and stores it in the memory 16 (step ST24). Thereafter, the control unit 17 determines whether or not the comparison with all the telephone directory telephone numbers in the telephone directory database 18 has been completed (step ST25). If the acquired telephone number and the telephone directory telephone number do not partially match at least in the last five digits (No in step ST23), the control unit 17 extracts the telephone directory telephone number (step ST24). Without comparing, it is determined whether or not the comparison with all telephone directory telephone numbers in the telephone directory database 18 has been completed (step ST25).

  If the comparison with all the phone book phone numbers in the phone book database 18 has not been completed (No in step ST25), the control unit 17 reads the next phone book phone number from the phone book database 18 (step ST22). The comparison process (step ST23) and the extraction process (step ST24) with the acquired telephone number are repeatedly executed. When the comparison with all the phone book phone numbers in the phone book database 18 is finished (Yes in step ST25), the control unit 17 finishes the process of extracting the phone book phone numbers from the phone book database 18.

  When the comparison processing with all the phone book phone numbers registered in the phone book database 18 is finished, the control unit 17 then reads all the phone book phone numbers extracted from the memory 16 and obtains the acquired phone calls therein. The telephone number having the longest number of consecutive matching digits with the number is selected as one matching telephone directory telephone number (step ST26).

For example, when the acquired phone number is “30 212 3456 7890”, the control unit 17 sets “30 212 3456 7890” from the phone book database 18 of FIG. And then select it as one phonebook phone number that matches .

  When it is determined in step ST21 in FIG. 6 that the number of digits of the acquired telephone number is four digits or less (Yes), the control unit 17 stores the acquired telephone number and the telephone book registered in the telephone directory database 18. Compare with phone number. Specifically, the control unit 17 reads one telephone directory telephone number from the telephone directory database 18 (step ST27), and determines whether or not the acquired telephone number and the telephone directory telephone number completely match (step ST27). ST28). If the acquired phone number of four digits or less and the phone book phone number completely match (Yes in step ST28), the control unit 17 sets the phone book phone number to one phone that matches the acquired phone number. It is selected as a book phone number (step ST29). For example, when the telephone number acquired based on the history database 19 or the user input operation is “104”, the control unit 17 sets “104” from the telephone book database 18 of FIG. Select.

  If the acquired phone number of 4 digits or less and the phone book phone number do not completely match (No in step ST28), the control unit 17 compares the phone numbers with all phone book phone numbers in the phone book database 18. It is determined whether or not (step ST30). If the comparison has not been completed (No in step ST30), control unit 17 selects the next registered telephone number and repeats the selection process based on the matching determination (steps ST27 to ST29). When the control unit 17 extracts one telephone directory telephone number from the telephone directory database 18 or finishes comparison of all telephone directory telephone numbers in the telephone directory database 18 (Yes in step ST30), the acquired telephone number The selection process of the telephone directory telephone number that matches is finished.

  As described above, the control unit 17 of the hands-free call device 2 selects one telephone directory telephone number in the telephone directory telephone number selection processing in step ST14 in FIG. Then, the control part 17 performs a number correction process (step ST15).

  FIG. 7 is a flowchart showing a flow of number correction processing executed by the control unit 17 in FIG. In the number correction process, the control unit 17 first determines whether one telephone directory telephone number has been selected (step ST31).

When one telephone directory telephone number is selected (Yes in step ST31), the control unit 17 compares the acquired telephone number with the number of digits of the selected one telephone directory telephone number. When the number of digits of the selected phone book telephone number is larger than the acquired phone number, the control unit 17 corrects the acquired phone number to the phone book phone number and sets the phone book phone number as the destination phone number .

  When the selection of the destination telephone number is completed by the correction process based on the search of the telephone directory database 18, the control unit 17 next executes the correction process based on the configuration determination of the destination telephone number. If no telephone directory telephone number has been selected, the control unit 17 uses the acquired incoming notification telephone number as the destination telephone number, and executes correction processing based on the configuration determination of the destination telephone number.

  In the correction process based on the configuration determination of the destination telephone number, first, the control unit 17 determines whether or not the head of the destination telephone number is a number other than “0” (step ST33). For example, when the destination telephone number is “30 212 3456 7890” or “104”, the control unit 17 determines that the head of the destination telephone number is a number other than “0”, so that “03 4567 8901” or “ If “+30 212 3456 7890”, it is determined that the number is not “0”.

  If it is determined that the beginning of the destination telephone number is a number other than “0” (Yes in step ST33), the control unit 17 next determines whether the number of digits of the destination telephone number is four digits or less. Is determined (step ST34). For example, when the destination telephone number is “104”, the control unit 17 determines that the number of digits of the destination telephone number is 4 digits or less, and when it is “30 212 3456 7890”, it is not less than 4 digits. to decide.

  When determining that the number of digits of the destination telephone number is not less than 4 digits (No in step ST34), the control unit 17 executes a correction process based on the determination of the destination telephone number (step ST35). Specifically, the symbol “+” indicating international call origination is added to the head of the destination telephone number, and this is used as a new destination telephone number after correction. For example, when the original destination telephone number is “30 212 3456 7890”, the control unit 17 sets “+30 212 3456 7890” as the new destination telephone number.

  Further, when it is determined that the number of digits of the destination telephone number is 4 digits or less (Yes in step ST34), or the head of the destination telephone number is not a number other than “0” (No in step ST33). In this case, the control unit 17 does not execute the correction process (step ST35) based on the configuration determination of the destination telephone number. That is, the control unit 17 sets the destination telephone number that has been corrected only based on the search of the telephone directory database 18 (steps ST31 to ST32) as the final destination telephone number.

  Thus, when the number correction process (step ST15) in FIG. 5 is completed, the control unit 17 displays the destination telephone number after the correction process on the display device 12 (step ST16). When the control unit 17 selects the telephone directory telephone number as the destination telephone number, the control unit 17 displays information such as a name associated with the telephone directory telephone number in the telephone directory database 18 on the display device 12. You may make it make it.

  Further, the control unit 17 transmits a call instruction notification including the call destination telephone number to the control unit 28 of the mobile phone 3 (step ST17). Note that the destination telephone number notified by the hands-free call device 2 to the mobile phone 3 is always preceded by a symbol “+” indicating international call origination when it is an international telephone number. Further, this call instruction notification is actually supplied from the control unit 17 to the short-range communication device 11, transmitted from the short-range communication device 11 to the short-range communication device 22, and sent from the short-range communication device 22 to the control unit 28. Supplied.

  When the call instruction notification is received, the control unit 28 of the mobile phone 3 generates a call request packet for designating the call destination telephone number and transmits the call request packet to the carrier communication device 21 (step ST18). Thereafter, the cellular phone 3 executes a line connection process with a phone whose destination telephone number is not shown (step ST19). As a result, the mobile phone 3 is in a state in which a call can be made with the destination telephone (step ST20).

  In this call-capable state (step ST20), when receiving a voice packet from the line side, the control unit 28 of the mobile phone 3 transmits it to the hands-free call device 2 via the short-range communication device 22 and the short-range communication device 11. To the control unit 17. The control unit 17 of the hands-free call device 2 generates a voice signal based on the received voice packet and supplies the voice signal to the speaker 14. The speaker 14 outputs the voice of the line connection destination encoded in the voice packet.

  Further, the microphone 15 of the hands-free communication device 2 converts the voice spoken in response to the microphone 15 into an electric signal. The control unit 17 in the call ready state (step ST20) encodes the voice electric signal to generate a voice packet. Further, the control unit 17 transmits the generated voice packet to the control unit 28 of the mobile phone 3 via the short-range communication device 11 and the short-range communication device 22. When the control unit 28 receives a voice packet from the hands-free call device 2 side, it uses the carrier communication device 21 to transmit it to the connection destination of the line. A telephone (not shown) to which the line is connected reproduces the voice signal encoded in the voice packet.

  With the above processing, the hands-free call device 2 and the mobile phone 3 can make a hands-free call by calling using the incoming call notification telephone number registered in the history database 19 of the hands-free call device 2.

  As described above, the hands-free call device 2 according to this embodiment stores the incoming call notification telephone number notified from the mobile phone 3 in the history database 19 in the memory 16. Then, the control unit 17 of the hands-free call device 2 acquires the incoming call notification telephone number or the like from the memory 16, and when the first digit of the acquired telephone number is a number other than 0, the acquired telephone number is 4 digits or less. If it is less than 4 digits, the destination telephone number with the symbol for causing the mobile phone 3 to make an international call is added to the head of the acquired telephone number. 3 is notified.

  Therefore, when an incomplete international telephone number that cannot be transmitted is stored in the history database 19 in the memory 16, the hands-free communication device 2 can make a call to the international telephone number. Although the mobile phone 3 notifies the hands-free call device 2 of only a part (numerical part) of the international phone number received by the hand-free call device 2 as the incoming call notification phone number, the hands-free call device 2 is notified. It is possible to make a call to an international telephone number based on the incoming call history of the incomplete international telephone number.

  In addition, the hands-free communication device 2 can make an international call based on such an incomplete international telephone number, but can also make a domestic call where the first digit of the telephone number is 0. In addition, it is also possible to make calls to special phone numbers of 4 digits or less in Japan, such as a phone number (104) for number guidance, an emergency phone number (110, 119), a time guide number (104), a 4-digit information service number, etc. Is possible.

  In addition, the control unit 17 of this embodiment acquires from the telephone directory database 18 a telephone directory telephone number that has a lower digit that matches the incoming notification telephone number acquired from the history database 19 in a length of 5 digits or more. If the number of digits in the book phone number is greater than the number of digits in the incoming call notification phone number, the phone book phone number is used as the destination phone number, and the first digit is determined.

Therefore, even if the incoming call notification telephone number or the like stored in the history database 19 is an incomplete number for making an international or domestic call, the telephone directory telephone number stored in the telephone directory database 18 is used. It becomes possible to transmit appropriately based on. For example, an international telephone number (for example, “00 * 1 1 310 XXX XXXX”: “00 * 1” is a telephone company selection number) to which a predetermined telephone company selection number is added is registered in the telephone directory database 18. Thus, based on an incomplete incoming call notification telephone number (for example, “1 310 XXX XXXX”), it is possible to make an international call using the predetermined telephone company. It is possible to prevent the call charge from being increased by using a line of an expensive telephone company that is not normally used .

  The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications and changes can be made without departing from the scope of the invention. is there.

  In the above embodiment, the history database 19 stores only the incoming call notification telephone number notified from the mobile phone 3. In addition to this, for example, the history database 19 may store the destination telephone number transmitted to the mobile phone 3 or both as the history telephone number.

  In the above embodiment, the transmission operation when the control unit 17 acquires the incoming call notification telephone number (history telephone number) registered in the history database 19 has been described. In addition to this, for example, when the control unit 17 acquires a telephone directory telephone number registered in the telephone directory database 18 or when acquiring a telephone number input by the key device 13, FIGS. 7 may be executed. Thereby, it is possible to appropriately make an international call in any case using the hands-free call device 2. For example, even when an incomplete international telephone number consisting only of the numeric part notified from the mobile phone 3 is registered in the telephone directory database 18 of the hands-free calling device 2, the hands-free calling device 2 is registered. It is possible to make the mobile phone terminal 3 make an international call using the incomplete telephone directory telephone number.

  In the above-described embodiment, the control unit 17 of the hands-free call device 2 extracts a phone book phone number that partially matches the acquired phone number in at least the last five digits in the phone book phone number extraction process. . In addition to this, for example, the control unit 17 may extract a telephone directory telephone number that partially matches in the number of digits of the last six digits or more.

  In the above embodiment, the control unit 17 of the hands-free call device 2 compares the acquired telephone number with all telephone directory telephone numbers registered in the telephone directory database 18. In addition to this, for example, the control unit 17 of the hands-free call device 2 functions as sorting means for aligning phone book phone numbers registered in the phone book database 18 in advance in ascending or descending order in advance. When selecting a phone number, a comparison is made in order from the first one or the last one in the telephone book database 18 after the sorting process, and the number of digits that match with a predetermined number of digits (eg, 10 digits) is obtained. Later, when the number of matching digits starts to decrease, the extraction process may be terminated and the process may proceed to a selection process.

  In the case of this modification, the control unit 17 performs comparison processing for all the phone book phone numbers registered in the phone book database 18 when the phone book phone numbers matching the phone book database 18 are registered. Without this, the extraction process can be completed. Therefore, the average extraction time by the control unit 17 can be shortened. As a result, when the phone book telephone number selected by the complete phone number match is present in the phone book database 18, for example, compared with the case where it is selected by the complete match, for example, it is substantially equivalent to the average. A telephone directory telephone number can be extracted based on the extraction time.

  In the above embodiment, the hands-free call device 2 is combined with the mobile phone 3 to constitute the hands-free call system 1. In addition to this, for example, the hands-free call device 2 may be combined with a fixed telephone installed in the home to realize the hands-free call system 1. Furthermore, the hands-free call device 2 itself may be installed in the home instead of in the vehicle, or may be installed in a wearable manner with respect to a person such as a headphone device of a portable player.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used when a telephone number of a call destination is transmitted in a hands-free call device used with a mobile phone or the like.

FIG. 1 is a block diagram showing a configuration of a hands-free call system. FIG. 2 is a data structure diagram showing an example of the history database in FIG. FIG. 3 is a data structure diagram showing an example of the telephone directory database in FIG. FIG. 4 is a timing chart showing the operation when an incoming call is received. FIG. 5 is a timing chart showing the operation during transmission. FIG. 6 is a flowchart showing registration confirmation processing by the control unit in FIG. FIG. 7 is a flowchart showing number correction processing by the control unit in FIG.

Explanation of symbols

1 Hands-free call system 2 Hands-free call device 3 Mobile phone (telephone)
16 Memory (memory means)
17 Control unit (acquisition means, second acquisition means, addition means, notification means)
18 Phonebook database 19 History database

Claims (7)

In a hands-free call device that allows a telephone to make a call based on a telephone number and enable a call via this telephone,
Storage means for storing a telephone number;
And acquisition means for acquiring a telephone number from the previous term memory means,
If the first digit of the telephone number before Symbol acquisition unit has acquired a number other than 0, the beginning of the acquired telephone number, and adding means for adding symbols for which the outgoing international call before Symbol telephone,
A notification unit for notifying the telephone number the symbol is added to the phone,
Have
The addition means adds the symbol when the first digit of the history telephone number acquired by the acquisition means is a number other than 0 and the history telephone number is not 4 digits or less.
A hands-free call device characterized by that. In a hands-free call device that allows a telephone to make a call based on a telephone number and enable a call via this telephone,
A history database for storing outgoing and / or incoming history phone numbers;
And acquisition means for acquiring a record phone number from the previous Symbol history database,
A If the first digit of the previous SL history telephone number acquisition means has acquired is a number other than 0, and, if the history phone number is not less four digits, the beginning of the acquired history telephone number, the telephone An additional means for adding a symbol for making an international call to
And notifying means for notifying before Symbol History telephone number symbol is added to the phone,
A hands-free communication device comprising: A phone book database for storing phone book phone numbers;
Second acquisition means for acquiring, from the telephone directory database, a telephone directory telephone number whose lower digits match with a history telephone number acquired from the history database by the acquisition unit at a predetermined number of digits or more;
The adding means is to determine the first digit of the telephone number having the larger number of digits in the history telephone number acquired by the acquiring means and the telephone directory telephone number acquired by the second acquiring means;
The hands-free call device according to claim 2 . The acquisition means acquires from the telephone directory database the telephone directory telephone number whose lower digits match the historical telephone number acquired from the historical database in a length equal to or longer than a predetermined number of digits, and the digits of the telephone directory telephone number If the number is greater than the number of digits of the history phone number, the phonebook phone number is the destination phone number and the first digit is to be determined;
The hands-free call device according to claim 2. The hands-free call device according to any one of claims 1 to 4,
When the telephone number to which a symbol for an international call is added is notified from the hands-free call device, a telephone for making an international call;
A hands-free call system characterized by comprising:   6. The hands-free call system according to claim 5, wherein the telephone notifies the hands-free call device of only a part of an international telephone number notified when an incoming call is received. A method for making an international call in a hands-free call device that allows a telephone to make a call based on a telephone number and enables a call via the telephone,
Obtaining a telephone number from storage means for storing the telephone number;
If the first digit of the obtained pre-Symbol telephone number is a number other than 0, the steps of the beginning of the acquired telephone number, adding symbols for which the outgoing international call before Symbol telephone,
And notifying the telephone number before Symbol symbol is added to the phone,
I have a,
The process of the adding step is performed when the first digit of the history telephone number acquired by the processing of the acquisition step is a number other than 0, and the history telephone number is not 4 digits or less. Have additional processing,
A method for making an international call in a hands-free call device.

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