JP2008288643A - Handsfree calling device, and telephone number determination device, and telephone number determination method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suitably select a registered telephone number when one registration is available for one telephone number even if one of two telephone numbers, which are compared, does not meet a condition included in the other telephone number. <P>SOLUTION: A database 18 in a handsfree calling device 2 holds registered telephone numbers. An acquisition means 17 acquires a telephone number reaching a telephone set 3 or a telephone number that the telephone set 3 is made to dial. An extracting means 17 compares telephone numbers with each other from their ends to extract a registered telephone number which matches the telephone number acquired by the acquiring means 17 at least partially from the database 18. A selecting means 17 selects as a matching registered telephone number a registered telephone number having the largest number of successive matching digits among registered telephone numbers extracted by the extracting means 17. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hands-free call device, a telephone number determination device, and a telephone number determination method.

  Patent Document 1 discloses a method for collating a telephone number with a number registered in a memory. Specifically, the phone numbers are investigated from the end to the beginning, and those that match are investigated. In particular, if there is a 7-digit telephone number without an area code such as “222 33 # 4” among the telephone numbers registered in the electronic telephone directory, the 7 digits from the end are investigated. Specifically, the telephone number registered in the electronic telephone directory or the telephone number currently displayed on the display unit, whichever is shorter, is investigated for all shorter digits. For example, if the number of digits does not match, such as the electronic phone book registration number of “93 111 22 # 2” and the phone number of “093 111 22 # 2,” both numbers up to the smaller number of digits Investigate from the end of the phone number to the beginning.

Japanese Unexamined Patent Publication No. 2003-258987 (paragraphs 0028, 0029, FIG. 3, etc.)

  In the collation method according to Patent Document 1, when the condition that any one of the incoming telephone number and the registered telephone number is included in the other telephone number is satisfied, a matching registered telephone number can be obtained.

  However, an international telephone number is added to the head of the incoming telephone number, a domestic area code is added, or a telephone company selection number is added. In addition, in the case of a European phone, when the incoming phone number is notified to the hands-free unit, the “+ (symbol indicating international call)” that is normally added to the beginning of the incoming phone number for international calls is deleted. Sometimes. In the United States, “1” is added to the head of the incoming telephone number of a call via a long distance line, but this “1” is not added to the incoming telephone number from a regional line. Thus, one telephone number is notified as a different incoming telephone number according to the positional relationship between the caller and the callee.

  And a user registers a telephone number in a database by the format used most, for example irrespective of such a situation.

  Therefore, in the collation method according to Patent Document 1, even if it is registered as a telephone number in the area code format, for example, when the telephone is notified as in the international telephone number format, they match. I can't judge.

  It should be noted that such a collation process with a registered telephone number may also be performed at the time of outgoing call based on the incoming call history, for example.

  According to the present invention, if one registration is made for one telephone number, even if the condition that one telephone number of the two telephone numbers to be compared is included in the other telephone number is not satisfied, the registered telephone number It is an object of the present invention to obtain a hands-free communication device, a telephone number determination device, and a telephone number determination method that can appropriately select a telephone number.

  The hands-free call device according to the present invention includes a database having a registered telephone number, an acquisition means for acquiring a telephone number received by the telephone or a telephone number to be transmitted to the telephone, and an acquisition means by comparing the telephone numbers from the end. The registered telephone number that at least partially matches the telephone number obtained by the above-mentioned method is extracted from the database, and the registered telephone number extracted by the extracting means matches the one with the longest consecutive match digit number. Selecting means for selecting as a registered telephone number.

  The hands-free call device according to the present invention has the following features in addition to the above-described configuration of the invention. That is, the extraction means extracts a match in a predetermined number of digits of 5 digits or more.

  The hands-free communication device according to the present invention has the following features in addition to the above-described components of the invention. That is, the hands-free call device further includes a determination unit that determines whether or not the telephone number acquired by the acquisition unit is a number of digits of 4 digits or less. Then, when the determining means determines that the number of digits is not less than four digits, the extracting means at least partially matches the telephone number acquired by the acquiring means by comparison from the end of the telephone numbers described above. The registered telephone number is extracted from the database, and when it is determined by the determining means that the number of digits is 4 digits or less, the registered telephone number that completely matches the telephone number acquired by the acquiring means is extracted from the database.

  The hands-free communication device according to the present invention has the following features in addition to the above-described components of the invention. That is, the hands-free call device further selects the registered telephone number in the selected registered telephone number and database when the selecting means selects the registered telephone number when the acquiring means acquires the telephone number received by the telephone. Display means for displaying the information associated with the registered telephone number and displaying the telephone number acquired by the acquiring means when the registered telephone number is not selected by the selecting means.

  The hands-free communication device according to the present invention has the following features in addition to the above-described components of the invention. That is, the hands-free call device further includes sorting means for aligning registered telephone numbers registered in the database in ascending or descending order with their tails aligned. Then, the extracting means compares in order from the first one or the last one in the database after the sorting process, and after obtaining a registered telephone number having a number of digits that matches at a predetermined number of digits or more, the number of digits that match When it starts to decrease, the extraction process ends.

  The telephone number determination device according to the present invention includes a database having registered telephone numbers, acquisition means for acquiring incoming or outgoing telephone numbers, and telephone numbers acquired by the acquisition means by comparison from the end of the telephone numbers. Extraction means for extracting at least partially matching registered telephone numbers from the database, and selection of the registered telephone numbers extracted by the extracting means having the longest number of consecutive matching digits selected as matching registered telephone numbers Means.

  The telephone number determination method according to the present invention includes a step of acquiring a telephone number for incoming or outgoing calls, and by comparing the acquired telephone number with a registered telephone number registered in a database from the end thereof by an acquisition means. Extracting registered phone numbers that at least partially match the acquired phone number from the database, and selecting the extracted registered phone numbers that have the longest number of consecutive match digits as the matching registered phone numbers And a step of performing.

  In the present invention, a registered telephone number is selected by a two-stage process based on extraction and selection. Therefore, if one registration is made for one telephone number, one telephone number of the two telephone numbers to be compared is determined. Even when the condition included in the other telephone number is not satisfied, the registered telephone number can be appropriately selected.

  Hereinafter, a hands-free communication device, a telephone number determination device, and a telephone number determination method according to an embodiment of the present invention will be described with reference to the drawings. The telephone number determination device will be described as a part of the hands-free call device. The telephone number determination method 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 telephone number determination devices.

  The hands-free call device 2 is installed in a vehicle such as an automobile, for example, and includes a short-range communication device 11, a display device 12 as a display means for displaying an incoming or outgoing telephone number, a key device 13, A speaker 14 that outputs sound, a microphone 15 that converts sound into an electrical signal, a memory 16, 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). In addition, as a radio frequency band used for short-distance communication such as in the home, for example, there is a 2.4 GHz band.

  The memory 16 is a semiconductor memory such as a flash memory, for example. The memory 16 stores a telephone directory database 18 and a history database 19 as databases. In the telephone book database 18, a plurality of telephone numbers can be registered in association with their names. Note that the phone book database 18 stored in the memory 16 may be a copy of a phone book database 29 of the mobile phone 3 to be described later, for example.

  FIG. 2 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 registered telephone number. Each record stores information such as a name in addition to the registered telephone number. The phone book database 18 of FIG. 2 includes “+012 3456 7890” which is the phone number of Mr. A who lives in Europe, “310 XXX XXXX” which is the phone number of Mr. B who lives in the United States, and the phone number of Mr. C who lives in Japan. “03 3456 7890”, and “104”, which is one of the telephone number inquiry destinations in Japan. “+012 3456 7890” is a telephone number (international telephone number) normally used in Europe, and a symbol (+) indicating an international telephone call is added to the head. “310 XXX XXXX” is a telephone number used for a telephone call within a regional line in the United States. Further, “03 3456 7890” is a telephone number used for a call with an area code in Japan.

  FIG. 3 is a data structure diagram showing an example of the history database 19. The history database 19 has a plurality of records for each telephone number of the call destination. Each record stores information such as a call destination telephone number and a call time for incoming or outgoing calls. The history database 19 in FIG. 3 includes “012 3456 7890” indicating an incoming call from Mr. A, “1 310 XXX XXXX” indicating an incoming call from Mr. B, a telephone number inquiry destination in Japan. One telephone number such as “104” is provided. These call destination telephone numbers are the incoming telephone numbers notified from the mobile phone 3 when an incoming call is received or the call destination telephone numbers notified to the mobile telephone 3 at the time of outgoing call.

  The control unit 17 in FIG. 1 functions as an acquisition unit, a determination unit, an extraction unit, and a selection unit, and controls the operation of the hands-free call device 2 to receive and send calls using the hands-free call device 2. Is realized. 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 new telephone number or the like in the telephone directory database 18 or selects a telephone number registered from the telephone directory database 18 by search processing.

  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.

  It should be noted 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 will not be described.

  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 including the extracted incoming telephone number, and supplies it to the short-range communication device 22. 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 phone number, the control unit 17 of the hands-free call device 2 first determines whether the registered phone number that matches the notified incoming phone number is registered in the phone book database 18. It is confirmed whether or not (step ST5).

  FIG. 5 is a flowchart showing the flow of registration confirmation processing executed by the control unit 17 in FIG.

  In the incoming phone number registration confirmation process, the control unit 17 of the hands-free call device 2 first determines whether the number of digits of the incoming phone number is 4 digits or less (step ST11).

  If the number of digits of the incoming phone number is not less than 4 digits (No in step ST11), the control unit 17 performs a comparison process between the incoming phone number and all registered phone numbers registered in the phone book database 18. Specifically, the control unit 17 reads one registered telephone number from the telephone directory database 18 (step ST12), compares the incoming telephone number and the registered telephone number in order from the last digit, and receives the incoming telephone number. It is determined whether or not the registered telephone number partially matches at least in the last five digits (step ST13). Note that the number of digits of the telephone number to be compared in this comparison process is the shorter number of digits of the number of digits of the incoming phone number and the number of digits of the registered phone number.

  When the incoming telephone number and the registered telephone number partially match at least in the last five digits, the control unit 17 extracts the registered telephone number and stores it in the memory 16 (step ST14). Thereafter, the control unit 17 determines whether or not the comparison with all registered telephone numbers in the telephone directory database 18 has been completed (step ST15). If the incoming telephone number and the registered telephone number do not partially match at least in the last 5 digits, the control unit 17 does not perform the process of extracting the registered telephone number, and does not register all the registered telephone numbers in the telephone directory database 18. It is determined whether or not the comparison with the telephone number has been completed (step ST15).

  If the comparison with all registered telephone numbers in the telephone directory database 18 has not been completed (No in step ST15), the control unit 17 reads the next registered telephone number from the telephone directory database 18 (step ST12) and described above. A comparison process with the incoming telephone number (step ST13) and an extraction process (step ST14) are executed. When the comparison with all registered phone numbers in the phone book database 18 is completed (Yes in step ST15), the control unit 17 finishes the process of extracting registered phone numbers from the phone book database 18.

  When the comparison process with all registered telephone numbers registered in the telephone directory database 18 is finished, the control unit 17 next reads all the registered telephone numbers extracted from the memory 16, and among them, the number of consecutive matching digits Is selected as one matching registered telephone number (step ST16).

  For example, when the incoming telephone number is “012 3456 7890”, the control unit 17 sets “+012 3456 7890” and “03” from the telephone directory database 18 of FIG. 2 as registered telephone numbers that continuously match in the last five digits or more. 3456 7890 "is selected. The former registered telephone number “+012 3456 7890” continuously matches the incoming telephone number in the last 11 digits, and the latter registered telephone number “03 3456 7890” is continuous in the incoming telephone number and the last 8 digits. Matches. Therefore, the control unit 17 selects the former registered telephone number “+012 3456 7890” having the longest number of consecutive matching digits as one matching registered telephone number.

  In addition, for example, when the incoming telephone number is “03 3456 7890”, the control unit 17 selects the registered telephone number “03 3456 7890” by the same process. As described above, the control unit 17 can select a registered telephone number that appropriately corresponds to the incoming telephone number by the incoming telephone number registration confirmation process shown in FIG.

  When it is determined in step ST11 in FIG. 5 that the number of digits of the incoming phone number is 4 digits or less (Yes in step ST11), the control unit 17 is registered in the incoming phone number and the phone book database 18. Compare with the registered phone number. Specifically, the control unit 17 reads one registered telephone number from the telephone directory database 18 (step ST17), and determines whether or not the incoming telephone number and the registered telephone number completely match (step ST18). . If the incoming telephone number of 4 digits or less and the registered telephone number completely match, the control unit 17 selects the registered telephone number as one registered telephone number that matches the incoming telephone number (step ST19). .

  If the incoming telephone number of 4 digits or less and the registered telephone number do not completely match, the control unit 17 determines whether or not the comparison with all the registered telephone numbers in the telephone directory database 18 has been completed ( Step ST20). When the control unit 17 extracts one registered phone number from the phone book database 18 or finishes comparison of all registered phone numbers in the phone book database 18, the control unit 17 finishes the process of selecting a matching registered phone number. For example, when the incoming telephone number is “104”, the control unit 17 selects “104” from the telephone directory database 18 of FIG. 2 as the registered telephone number that completely matches the incoming telephone number.

  As described above, when the registration telephone number selection process in step ST5 in FIG. 4 is completed, the control unit 17 selects one registered telephone number from a plurality of registered telephone numbers registered in the telephone directory database 18. If selected, the selected registered telephone number is added to the history database 19 in association with the time (step ST6). As a result, a new telephone number is added to the history database 19. Further, the control unit 17 reads a record of the selected registered telephone number from the memory 16 and displays the registered telephone number and name in the record on the display device 12 (step ST7). The display device 12 displays, for example, “+012 3456 7890” and “Mr. A” in FIG. 2, or displays “104” and “number inquiry”.

  In addition, when the registered telephone number is not selected by the above two steps of extraction and selection, the control unit 17 adds the incoming telephone number to the history database 19 in association with the time, and also adds the incoming telephone number. It is displayed on the display device 12 (steps ST6 and ST7). Note that the control unit 17 may add the incoming telephone number to the history database 19 regardless of whether or not the registered telephone number is selected.

  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 since the incoming call (step ST8). . As a result, the mobile phone 3 is in a state in which a call can be made with the caller phone (step ST9).

  In this call-enabled state (step ST9), when receiving the 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 and 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 ST9) 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.

  With the above processing, a hands-free call at the time of an incoming call can be performed using the hands-free call device 2 and the mobile phone 3.

  FIG. 6 is a timing chart showing a call operation using a call destination telephone number registered in the history database 19 of the hands-free call device 2. Note that the mutual authentication operation (steps ST31 and ST32) 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 in FIG.

  The control unit 17 of the hands-free call device 2 selects one call destination 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 ST33). Thereafter, the control unit 17 confirms whether or not a registered telephone number that matches the selected telephone number is registered in the telephone directory database 18 before making a call instruction based on the selected telephone number. (Step ST34).

  In the registration confirmation process of the destination telephone number at the time of outgoing call, the control unit 17 of the hands-free call device 2 executes the registration confirmation process of FIG. Specifically, for example, the control unit 17 first determines whether or not the number of digits of the destination telephone number is 4 digits or less. If the number of the destination telephone number is not 4 digits or less (No in step ST11), the control unit 17 compares the destination telephone number with all registered telephone numbers registered in the telephone directory database 18, and at least Those matching in the last five digits are extracted (steps ST12 to ST15). In addition, the control unit 17 selects, from all registered telephone numbers extracted from the telephone directory database 18, the one having the longest number of consecutive matching digits as one registered telephone number that matches the called telephone number (step ST16).

  For example, when the destination telephone number “012 3456 7890” in FIG. 3 is selected, the control unit 17 sets “+012 3456” from the telephone book database 18 of FIG. 7890 "and" 03 3456 7890 ". Then, the control unit 17 selects the former registered telephone number “+012 3456 7890” having the longest number of consecutive matching digits as one registered telephone number that matches the call destination telephone number.

  If the number of digits of the destination telephone number is 4 digits or less (Yes in step ST11), the control unit 17 compares the destination telephone number with the registered telephone number registered in the telephone directory database 18. Then, the one that exactly matches the call destination telephone number is extracted. The control unit 17 extracts one registered telephone number from the telephone directory database 18 or finishes the registration telephone number selection process after completing the comparison for all the registered telephone numbers in the telephone directory database 18 (step ST17). ~ ST20).

  As described above, when one registered telephone number is selected in the registered telephone number selection process in step ST34 in FIG. 6, the control unit 17 executes the number correction process (step ST35). Specifically, for example, the control unit 17 compares the number of digits of the call destination telephone number with the selected one registered telephone number. When the number of digits of the registered telephone number selected from the telephone number of the callee is larger, the control unit 17 corrects the telephone number of the callee to the registered telephone number and sets the registered telephone number as the callee telephone number. On the other hand, when the number of digits of the registered telephone number selected is smaller than the telephone number of the callee, the control unit 17 sets the callee telephone number selected in the history database 19 as the callee telephone number.

  When the destination telephone number is obtained by the correction process based on the search of the telephone directory database 18, the control unit 17 displays the destination telephone number after the correction process on the display device 12 (step ST36). When the registered telephone number is the destination telephone number, the control unit 17 causes the display device 12 to display information such as a name associated with the registered telephone number in the telephone directory database 18. Also good.

  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 ST37). 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 receiving the call instruction notification, the control unit 28 of the mobile phone 3 generates a call request packet designating the call destination telephone number, and transmits the call request packet to the carrier communication device 21 (step ST38). Thereafter, the cellular phone 3 executes line connection processing with a phone whose telephone number is not shown (step ST39). As a result, the mobile phone 3 is in a state in which a call can be made with the destination telephone (step ST40).

  In this call-capable state (step ST40), 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 ST40) 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.

  By the above processing, a hands-free call by calling using the hands-free call device 2 and the mobile phone 3 based on the call destination telephone number registered in the history database 19 of the hands-free call device 2 is possible.

  As described above, when the control unit 17 of the hands-free call device 2 of this embodiment acquires a telephone number (received telephone number or call destination telephone number) from the mobile phone 3 or the history database 19, the acquired telephone number And each registered telephone number registered in the telephone directory database 18 are compared in order from the end thereof. Then, the control unit 17 extracts a registered telephone number that partially matches at least the last five digits with the acquired telephone number, and selects the registered telephone number that has the longest number of consecutive matching digits as the registered telephone number.

  By this two-stage processing by extraction and selection, the control unit 17 can select a registered telephone number that has a head portion different from the acquired telephone number. Even when the condition that one of the two telephone numbers to be compared is included in the other telephone number is not satisfied, the registered telephone number to be determined to match can be appropriately selected.

  That is, the control unit 17 of the hands-free call device 2 adds, for example, an international telephone number, a domestic area code, or a telephone company selection number to the beginning of the acquired incoming telephone number. Even if is added, it is possible to determine a match with an appropriate registered telephone number. Further, the control unit 17 deletes “+ (symbol indicating an international call)” added to the head of the incoming telephone number of a normal international call in combination with the European mobile phone 3. Even so, it is possible to determine a match with an appropriate registered telephone number having “+”. Further, the control unit 17 can determine whether the incoming telephone number for a long-distance call in the US matches the registered telephone number in the area. For example, when the acquired incoming telephone number is “012 3456 7890”, the control unit 17 can select an appropriate registered telephone number “+012 3456 7890” from the telephone directory database 18 of FIG.

  Further, since the control unit 17 of the hands-free call device 2 compares the acquired telephone number and the registered telephone number in order from the end thereof, for example, “012 3456 7890” and “012 7890 3456” from the bottom. When the number of digits counted is shifted and partially matches, the wrong registered telephone number is not selected.

  In particular, in this first-stage extraction process, the control unit 17 extracts a registered telephone number that matches in a predetermined number of digits of the last five digits or more. The telephone number is the same in at least the last 5 digits or the last 7 digits, even if it is reported as in the international telephone number format or in the area code format. Therefore, the possibility of selecting a registered telephone number that should not be determined to match, for example, only the last two digits are matched, without significantly hindering the extraction of the registered telephone number that should be determined to match is greatly reduced. be able to.

  In addition, when the control unit 17 of this embodiment determines whether or not the acquired telephone number has four or fewer digits, and determines that the acquired telephone number is not four or fewer digits, The registered telephone number that at least partially matches the acquired telephone number is extracted from the telephone directory database 18 (steps ST12 to ST15 in FIG. 5), and determined to be four digits or less. In this case, a registered telephone number that completely matches the acquired telephone number is extracted from the telephone directory database 18 (steps ST17 to ST20 in FIG. 5).

  Therefore, the control unit 17 does not interfere with the process of selecting a registered telephone number when obtaining the above-described normal 10-digit telephone number, for example, a special telephone number of 4 digits or less, such as a telephone number (104 ), Emergency telephone number (110, 119), time signal guide number (104), and a 4-digit information service number, etc., can be selected as they are. Using the hands-free call device 2, it is possible to make a call using a special telephone number of 4 digits or less.

  When the registered telephone number is selected at the time of incoming call, the control unit 17 of this embodiment associates the selected registered telephone number with the selected registered telephone number in the telephone directory database 18 on the display device 12. When the registered phone number is not selected, the acquired incoming phone number is displayed.

  Therefore, the user can easily determine whether or not the registered telephone number has been extracted based on whether or not information other than the telephone number is displayed on the display device 12. That is, when only the telephone number is displayed on the display device 12, the user can determine that the registered telephone number has not been extracted, and information such as a name other than the telephone number is displayed on the display device 12. In this case, it can be determined that the registered telephone number has been extracted.

  Therefore, it is not necessary for the user himself / herself to check whether or not the incoming telephone number is registered in the telephone directory database 18. In addition, since the telephone number is corrected to a familiar registered telephone number and displayed, the user can easily grasp the incoming call source only by the displayed telephone number.

  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.

  For example, in the above embodiment, the control unit 17 of the hands-free call device 2 extracts a registered phone number that partially matches the acquired phone number in at least the last five digits in the registered phone number extraction process. In addition to this, for example, the control unit 17 may extract a registered 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 registered telephone numbers registered in the registration database. In addition to this, for example, the control unit 17 of the hands-free call device 2 functions in advance as a sorting unit that arranges telephone numbers registered in the telephone directory database 18 in ascending or descending order with the tails aligned. When selecting, the phonebook database 18 after this sort processing is compared in order from the first one or from the last one, and after obtaining the number of digits that match a predetermined number of digits (for example, 10 digits) or more, match If the number of digits to be reduced starts, the extraction process may be terminated and the process may proceed to a selection process.

  In the case of this modification, when there is a registered telephone number that matches the telephone directory database 18, the control unit 17 extracts all the registered telephone numbers registered in the telephone directory database 18 without performing comparison processing. Processing can be finished. Therefore, the average extraction time by the control unit 17 can be shortened. As a result, in the case where the registered telephone number selected by the complete phone number match exists in the telephone directory database 18, for example, compared with the case where the registered phone number is selected by the complete match, for example, an approximately equivalent average extraction that is comparable to that. A registered telephone number can be extracted according to time.

  In the above embodiment, the control unit 17 of the hands-free call device 2 selects a registered telephone number from the telephone directory database 18. In addition to this, for example, the control unit 17 of the hands-free call device 2 uses the history database 19 as a selection source of the registered telephone number, and when the telephone number is acquired, the control unit 17 of the destination telephone number registered in the history database 19 You may make it select a telephone number from the inside.

  In addition, for example, when the control unit 28 of the mobile phone 3 acquires a phone number, the registered phone number is selected from the phone numbers registered in the phone book database 29 or the history database 30 of the mobile phone 3. You may make it select. In the case of this modification, the mobile phone 3 is a telephone number determination device.

  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 for making / receiving calls 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 telephone directory database in FIG. FIG. 3 is a data structure diagram showing an example of the history database in FIG. FIG. 4 is a timing chart showing an incoming operation of the hands-free call system of FIG. FIG. 5 is a flowchart showing the flow of registration confirmation processing by the control unit in FIG. FIG. 6 is a timing chart showing the history transmission operation of the hands-free call system of FIG.

Explanation of symbols

2 Hands-free call device (phone number determination device)
12 Display devices (display means)
17 Control unit (acquiring means, judging means, extracting means, selecting means)
18 Phonebook database (database)

Claims (7)

A database with registered telephone numbers;
An acquisition means for acquiring a telephone number received by the telephone or a telephone number to be transmitted to the telephone;
Extracting means for extracting from the database a registered telephone number that at least partially matches the telephone number obtained by the obtaining means by comparison from the end of the telephone numbers;
A selection means for selecting a registered telephone number having the longest continuous matching digit number among registered telephone numbers extracted by the extracting means as a matching registered telephone number;
A hands-free communication device comprising:   2. The hands-free call device according to claim 1, wherein said extracting means extracts a match in a predetermined number of digits of 5 digits or more. A determination means for determining whether or not the telephone number acquired by the acquisition means is 4 digits or less;
When the determining means determines that the number of digits is not less than 4 digits, the extracting means at least partially matches the telephone number acquired by the acquiring means by comparison from the end of the telephone numbers described above. The registered telephone number to be extracted is extracted from the database, and when it is determined by the determining means that the number of digits is 4 digits or less, the registered telephone number that exactly matches the telephone number acquired by the acquiring means is extracted from the database. To do,
The hands-free call device according to claim 1 or 2, wherein   When the acquisition unit acquires a telephone number received by the telephone, when the registered telephone number is selected by the selection unit, the selected registered telephone number and the selected registered telephone number in the database are supported. 4. The display device according to claim 1, further comprising display means for displaying the attached information and displaying the telephone number acquired by the acquisition means when a registration telephone number is not selected by the selection means. The hands-free call device according to any one of the above. Sorting means for aligning registered telephone numbers registered in the database in ascending or descending order with their tails aligned,
The extraction means compares in order from the first one or the last one in the database after the sorting process, and after obtaining the registered telephone number having the number of digits that match at a predetermined number of digits or more, the number of digits that match To finish the extraction process when
The hands-free call device according to any one of claims 1 to 4, wherein: A database with registered telephone numbers;
An acquisition means for acquiring an incoming or outgoing telephone number;
Extracting means for extracting from the database a registered telephone number that at least partially matches the telephone number obtained by the obtaining means by comparison from the end of the telephone numbers;
A selection means for selecting a registered telephone number having the longest continuous matching digit number among registered telephone numbers extracted by the extracting means as a matching registered telephone number;
A telephone number determination apparatus comprising: Obtaining the incoming or outgoing phone number;
By comparing the acquired telephone number with the registered telephone number registered in the database from the end thereof, the registered telephone number that at least partially matches the telephone number acquired by the acquiring means is extracted from the database. And steps to
Selecting the extracted registered telephone number having the longest consecutive matching digit number as a matching registered telephone number;
A telephone number determination method characterized by comprising:

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