JP2007174441A - Hands-free kit system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hands-free kit system in which a call arrival tone different for each caller can be output from a hands-free kit under low power consumption. <P>SOLUTION: The hands-free kit system includes a mobile telephone terminal 10 and a hands-free kit 20 installed on an automobile for performing voice communications with the relevant mobile telephone terminal 10. The mobile telephone terminal 10 transmits data regarding a caller of an arriving telephone call to the hands-free kit via a Bluetooth(R) module 11. The hands-free kit 20 stores in a memory a plurality of kinds of audio data designated to be outputted as call arrival tones in accordance with callers, and on the basis of the data regarding the caller received from the mobile telephone terminal 10, a call arrival tone comprised of audio data alternatively selected from among the plurality of kinds of audio data stored in the memory is output. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hands-free kit system including a hands-free kit that is installed in an automobile and performs voice communication with the mobile phone terminal.

  2. Description of the Related Art Conventionally, hands-free kits installed in automobiles have been used in order to make hands-free calls without directly holding a mobile phone terminal. Such a hands-free kit is composed of an audio output unit such as a speaker and an audio input unit such as a microphone, and is connected to the mobile phone terminal via a predetermined cord cable, etc. The voice is received and output so as to be audible to the user, and the voice uttered by the user is transmitted to the mobile phone terminal, thereby realizing a call.

  In addition, along with the recent spread of short-range wireless communication standards such as so-called Bluetooth (Bluetooth®), wireless voice communication can be performed with a mobile phone terminal without using a predetermined cord cable. A hands-free kit has also been developed.

Furthermore, a technique for notifying the user of the caller by changing the ring tone according to the caller of the incoming call has been developed (see, for example, Patent Document 1). Specifically, this patent document 1 discloses a button telephone main device having an external interface connected to a local line or a dedicated line and a switch for performing an exchange process, and a plurality of buttons connected to the button telephone main device. A button telephone system comprising a telephone is disclosed. In particular, in this key telephone system, the key telephone main unit is provided with a central processing unit that controls the exchange process and a storage unit that stores incoming sound source driving data. An arbitrary ring tone can be sounded according to the number or the incoming call number.
JP 2002-218518 A

  By the way, in the conventional hands-free kit system that realizes a hands-free call by performing voice communication conforming to the above-described Bluetooth standard, only one type of ring tone can be output at the time of an incoming call. Therefore, the development of a hands-free kit system that can change the ringtone according to the caller is desired.

  Here, in the mobile phone terminal, as the memory capacity increases, it is possible to store a plurality of types of audio data in the memory. Therefore, in the hands-free kit system, in order to output a plurality of types of ringtones from the hands-free kit, a plurality of types of voice data are stored in the mobile phone terminal, and the voice data selected for each caller is stored. By establishing a voice link for transmission to the hands-free kit, it is considered possible to output a different ring tone for each caller from the hands-free kit.

  However, the method for establishing the voice link consumes extremely large power because it is necessary to transmit voice data from the mobile phone terminal to the hands-free kit every time there is an incoming call. This causes a problem that the usable time of the terminal is shortened.

  The present invention has been made in view of such circumstances, and provides a hands-free kit system that can output different ringtones from a hands-free kit according to a caller with low power consumption. For the purpose.

  A hands-free kit system according to the present invention that achieves the above-described object includes a mobile phone terminal and a hands-free kit that is installed in an automobile and performs voice communication with the mobile phone terminal. The terminal has communication means for transmitting data related to the caller of the incoming call to the hands-free kit, and the hands-free kit is designated to output as a ring tone corresponding to the caller Based on data relating to the caller received from the mobile phone terminal, and from a plurality of types of voice data stored in the storage means And a ringtone output means for outputting a ringtone composed of the selected voice data.

  In such a hands-free kit system according to the present invention, the mobile phone terminal does not transmit different audio data for each caller to the hands-free kit, but the data size is significantly smaller than the audio data. Data relating to the caller is transmitted, and based on this data, audio data selected from a plurality of types of audio data stored in the storage means of the hands-free kit is output. Therefore, in the hands-free kit system according to the present invention, the power consumption of the mobile phone terminal can be suppressed, the shortening of the usable time of the mobile phone terminal can be prevented, and a plurality of types can be selected from the hands-free kit. Ringtones can be output.

  According to the present invention, it is possible to output different ring tones according to callers from the hands-free kit with low power consumption.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

  As shown in FIG. 1, the hands-free kit system shown as an embodiment of the present invention includes a mobile phone terminal 10 and a hands-free kit 20 installed in an automobile.

  The cellular phone terminal 10 includes a Bluetooth module 11 that performs voice communication based on a communication method compliant with a so-called Bluetooth (registered trademark) standard. Here, Bluetooth is a communication method that has a longer communication distance and stronger resistance to obstacles than infrared communication, and it is necessary to set the devices so that they have a straight line-of-sight positional relationship like infrared communication. There is no communication method. On the other hand, infrared communication is a communication method capable of transmitting and receiving signals with lower power consumption than communication based on the Bluetooth standard.

  On the other hand, the hands-free kit 20 is configured to be able to perform voice communication with the mobile phone terminal 10, and is compatible with the mobile phone terminal 10 based on a communication method compliant with the Bluetooth standard. It has the Bluetooth module 21 which performs communication.

  In such a hands-free kit system including the mobile phone terminal 10 and the hands-free kit 20, during a call, the mobile phone terminal 10 and the hands-free kit 20 are connected based on a communication method compliant with the Bluetooth standard. Voice communication between them. That is, the hands-free kit 20 establishes a communication path between the Bluetooth modules 11 and 21 in the case of a call mode by the mobile phone terminal 10, and based on a communication method compliant with the Bluetooth standard, the mobile phone terminal 10, the voice received by the user 10 is received and outputted to the user through a speaker or the like, and the voice uttered by the user is taken in through the microphone and transmitted to the mobile phone terminal 10. To do.

  Here, the hands-free kit 20 stores a plurality of types of voice data designated to be output as ringtones corresponding to the caller in a memory (not shown), and the call received from the mobile phone terminal 10 is stored. A user can listen to a ringtone consisting of audio data selected from a plurality of types of audio data stored in the memory based on data related to the user via a ringtone output means such as a speaker. Output. At this time, the cellular phone terminal 10 and the hands-free kit 20 transmit and receive data regarding the caller via the Bluetooth modules 11 and 21.

  Specifically, in the hands-free kit system, a so-called AT for performing call control of a mobile device from an external device using a so-called ACL (Asynchronous Connection Less Link) channel defined by the Bluetooth standard. By transmitting / receiving a command between the mobile phone terminal 10 and the hands-free kit 20, it is possible to transmit / receive data related to the caller of the incoming call. Here, since the data relating to the caller consists of an AT command and a result code corresponding to the AT command, the data size is significantly smaller than that of voice data, and transmission / reception can be performed with extremely small power.

  In this case, the hands-free kit 20 performs ringtone output control according to a series of procedures as shown in FIG. Here, for convenience of explanation, two types of audio data A and B used as ringtones corresponding to the first telephone number and the second telephone number are stored in the memory of the hands-free kit 20. The case will be described.

  First, as shown in the figure, the hands-free kit 20 establishes an ACL link by establishing a handshake connection with the Bluetooth module 11 of the mobile phone terminal 10 via the Bluetooth module 21 in step S1. The state shifts to a state in which data can be transmitted / received to / from the terminal 10.

  Subsequently, the hands-free kit 20 transmits a command of AT + CLIP = 1 to the mobile phone terminal 10 through the Bluetooth module 21 in step S2. Here, the + CLIP command is used for setting display of a caller telephone number that is being received. The hands-free kit 20 transmits the command of AT + CLIP = 1 to the mobile phone terminal 10 so that when there is an incoming call, the phone number of the caller is set as an unsolicited result code + CLIP corresponding to the command. It can be set to be notified from the mobile phone terminal 10. Note that the unsolicited result code is different from the result code that is answered each time an AT command is input, and when the mobile phone terminal 10 receives an incoming call or when the state of the mobile phone terminal 10 changes. The result code is automatically transmitted to the hands-free kit 20. As described above, the hands-free kit 20 transmits a command of AT + CLIP = 1 to the mobile phone terminal 10 in advance, so that if the mobile phone terminal 10 receives an incoming call, the hands-free kit 20 notifies the mobile phone terminal 10 of the call. It becomes possible to receive.

  When the mobile phone terminal 10 receives an incoming call, the hands-free kit 20 receives the unsolicited result code RING + CLIP transmitted from the mobile phone terminal 10 via the Bluetooth module 21 in step S3. To do. Here, the unsolicited result code RING is a notification that an incoming call has been received as a response to the above-mentioned command of AT + CLIP = 1, and the telephone number of the caller, whether this telephone number is an international number or a domestic number It contains information such as the type. The hands-free kit 20 can specify the caller's telephone number based on the received unsolicited result code RING + CLIP.

  When the hands-free kit 20 identifies the telephone number of the caller in this way, if the identified telephone number is the first telephone number in step S4, it is stored in the memory in step S5. Of the two types of voice data, the voice data A corresponding to the first telephone number is selected and output as a ring tone. On the other hand, if the identified telephone number is the second telephone number in step S4, the hands-free kit 20 determines that the second of the two types of audio data stored in the memory in step S7. Voice data B corresponding to the telephone number is selected and output as a ringing tone. Note that the hands-free kit 20 determines that the ring tone based on predetermined voice data set in advance if the identified telephone number is neither the first telephone number nor the second telephone number in step S4. Is output, and the series of processing ends.

  As described above, in the hands-free kit system shown as the embodiment of the present invention, different audio data is not transmitted from the mobile phone terminal 10 to the hands-free kit 20 for each caller. Also transmits data relating to the caller whose data size is significantly smaller, and based on this data, the audio data selected from a plurality of types of audio data stored in the memory of the hands-free kit 20 is selected. Output. Thereby, in this hands-free kit system, power consumption of the mobile phone terminal 10 can be suppressed, and shortening of the usable time of the mobile phone terminal 10 can be prevented. Therefore, in this hands-free kit system, different ringtones can be output from the hands-free kit 20 according to the caller with low power consumption.

  The present invention is not limited to the embodiment described above. For example, in the above-described embodiment, the communication method conforming to the Bluetooth standard is used. However, the present invention can be applied when any communication method is used regardless of the type of wired or wireless. .

  Thus, it goes without saying that the present invention can be modified as appropriate without departing from the spirit of the present invention.

It is a figure which shows the structure of the hands-free kit system shown as embodiment of this invention. It is a flowchart which shows a series of procedures at the time of performing output control of a ringtone in the hands-free kit in the hands-free kit system shown as embodiment of this invention.

Explanation of symbols

10 Mobile phone terminals, 11, 21 Bluetooth module, 20 Hands-free kit

Claims (2)

A mobile phone terminal,
A hands-free kit that is installed in a car and performs voice communication with the mobile phone terminal,
The mobile phone terminal has communication means for transmitting data related to the caller of the incoming call to the hands-free kit,
The hands-free kit is based on storage means for storing a plurality of types of voice data designated to be output as a ring tone in correspondence with a caller, and data on the caller received from the mobile phone terminal. A hands-free kit system comprising: a ring tone output means for outputting a ring tone composed of voice data selectively selected from a plurality of types of voice data stored in the storage means. The communication means performs voice communication based on a communication method compliant with the Bluetooth standard,
The mobile phone terminal and the hands-free kit use an asynchronous connectionless link channel defined by the Bluetooth standard, and use a command for performing call control of the mobile phone terminal from the hands-free kit, The hands-free kit system according to claim 1, wherein data relating to the caller is transmitted and received.