JP2012156781A - Portable communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable transmission of sound only to a user in an environment in which it is not desirable to produce sound.SOLUTION: This portable communication terminal comprises a directional output function, an ordinary output function, and a control unit 120. The directional output function is a function for transmitting voice only to a user. The ordinary output function is a function for outputting audible sound without modifying it. The control unit 120 selects either the directional output or ordinary output function and enables it. In an embodiment, a speaker 220 functions as an ordinary speaker for outputting an audible sound without modifying it and also as a parametric speaker. In other words, the speaker 220 has both the directional output function and the ordinary output function.

Description

  The present invention relates to a mobile communication terminal.

  Mobile communication terminals are spreading. In connection with this, it is considered to provide various functions in the mobile communication terminal. For example, Patent Document 1 describes that a bone conduction speaker is provided separately from the main body of the mobile communication terminal. Patent Document 2 describes that a child device possessed by a deaf person and a parent device retained by a guardian are communicated wirelessly.

  On the other hand, Patent Document 3 describes that a parametric speaker is provided separately from the main body of the acoustic device.

JP 2000-349879 A JP 2001-52288 A Japanese Patent Laid-Open No. 02-253799

  With the widespread use of mobile communication terminals, mobile communication terminals are increasingly brought into environments such as conferences where it is difficult to produce sound. On the other hand, even in such an environment, it is preferable that voice can be transmitted only to the user.

  An object of the present invention is to provide a mobile communication terminal capable of transmitting sound only to a user even in an environment where it is difficult to output sound.

According to the present invention, a directional output function that transmits voice only to a user;
Normal output function that outputs audible sound as it is,
Control means for selecting and functioning one of the directivity output function and the normal output function;
A portable communication terminal is provided.

  ADVANTAGE OF THE INVENTION According to this invention, a sound can be conveyed only to a user in the environment where it is hard to make a sound.

It is a block diagram which shows the function structure of the portable communication terminal which concerns on 1st Embodiment. It is a flowchart which shows operation | movement of the portable communication terminal shown in FIG. It is a block diagram which shows the function structure of the portable communication terminal which concerns on 2nd Embodiment. It is a flowchart which shows operation | movement of the portable communication terminal shown in FIG. It is a block diagram which shows the function structure of the portable communication terminal which concerns on 3rd Embodiment. It is a block diagram which shows the function structure of the portable communication terminal which concerns on 4th Embodiment. It is a block diagram which shows the function structure of the portable communication terminal which concerns on 5th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

(First embodiment)
FIG. 1 is a block diagram showing a functional configuration of the mobile communication terminal according to the first embodiment. This mobile communication terminal includes a directivity output function, a normal output function, and a control unit 120. The directivity output mechanism is a function that transmits sound only to the user. The normal output function is a function for outputting audible sound as it is. The control unit 120 selects and causes one of the directivity output function and the normal output function to function. In this embodiment, the speaker 220 functions as a normal speaker that outputs audible sound as it is, and also functions as a parametric speaker. That is, the speaker 220 has both a directivity output function and a normal output function. Details will be described below.

  In the present embodiment, the mobile communication terminal includes a main body unit 100 and a slave unit 200. The slave unit 200 is incorporated in or similar to, for example, a wristwatch, glasses, a necklace, earrings, a belt, or a hat.

  The main unit 100 includes an external communication unit 110, a control unit 120, and a wireless communication unit 130. The slave unit 200 includes a wireless communication unit 210, a speaker 220, and an input unit 230.

  The external communication unit 110 communicates with an external communication network. For example, when the mobile communication terminal performs call processing, voice data related to the call is transmitted / received via the external communication unit 110.

  The control unit 120 converts audio data received from the outside via the external communication unit 110 into a format for output by the speaker 220 and generates an audio signal. For example, when the speaker 220 has a directivity output function, the control unit 120 converts the audio signal into a modulation signal for a parametric speaker. When the speaker 220 has a normal output function, the control unit 120 transmits the audio signal to the speaker 220 of the slave unit 200 without modulating the audio signal.

  The wireless communication unit 130 communicates with the wireless communication unit 210 of the slave unit 200.

  The speaker 220 outputs sound based on the sound signal received from the control unit 120 via the wireless communication unit 130 and the wireless communication unit 210. The speaker 220 includes an oscillating unit having a piezoelectric element, and outputs an audio signal when an audio signal or a modulation signal for a parametric speaker is input to the oscillating unit.

  The input unit 230 receives from the user a selection input indicating which of the directivity output function and the normal output function is selected. The selection input is transmitted to the control unit 120 via the wireless communication unit 210 and the wireless communication unit 130. Then, the control unit 120 processes the audio data according to the received selection input and outputs it to the speaker 220.

  FIG. 2 is a flowchart showing the operation of the mobile communication terminal shown in FIG. First, the user makes a selection input to the input unit 230 of the slave unit 200 (step S10). The wireless communication unit 210 of the slave unit 200 transmits the selection input to the control unit 120 via the wireless communication unit 130 of the main body unit 100 (step S20).

  In addition, the control unit 120 acquires data for audio output and converts this data into an audio signal (step S30). The data acquired here may be data acquired via the external communication unit 110, for example, voice data of a call (including voice recorded by an answering machine function), or text data acquired from an external server. It may be. Further, data stored in advance in the main body 100 or time information may be used. Here, the data stored in advance in the main body 100 includes not only voice data but also text data. When the data for voice output is text data, the text data may be determined by a search using a keyword, for example.

  The text data here may indicate, for example, the contents to be presented in the presentation, may be an email, or may be an attribute of another person. When the text data is an attribute of another person, the main body unit 100 may store the attribute together with the voice print data of that person. Then, the main body unit 100 generates voiceprint data based on the voice of the conversation partner received via the microphone provided in the main body unit 100 or the external communication unit 110, and reads the attribute corresponding to the generated voiceprint data. Also good.

  When the selection input indicates that the directivity output function is selected (step S40: Yes), the control unit 120 converts the audio signal into a modulation signal for a parametric speaker (step S50), and the converted audio. The signal is transmitted to the speaker 220 of the slave unit 200 (step S60). When the selection input indicates that the normal output function is selected (step S40: No), the control unit 120 transmits the audio signal to the speaker 220 of the slave unit 200 without adding modulation for the parametric speaker to the audio signal. (Step S60). The speaker 220 of the slave unit 200 outputs a sound according to the received sound signal (step S70).

  Next, the operation and effect of this embodiment will be described. According to this embodiment, when the user selects directivity output, the sound is output with high directivity. Accordingly, it is possible to convey the sound only to the user in an environment where it is difficult to output the sound. In particular, when a call is made to a mobile communication terminal, the content notified by the call often has high urgency. In such a case, when the directional output function is provided as in the present embodiment, it is possible to confirm the contents notified without causing trouble to surrounding people.

  Moreover, since the control part 120 is mounted in the main-body part 100, the subunit | mobile_unit 200 can be reduced in size.

  In addition, when text data searched using a keyword is output from the speaker 220, for example, during a meeting or a conversation, the user of the mobile communication terminal can be provided with attribute information of a topic or conversation partner without being known to others. it can.

(Second Embodiment)
FIG. 3 is a block diagram illustrating a functional configuration of the mobile communication terminal according to the second embodiment. The mobile communication terminal according to the present embodiment is the same as that of the first embodiment except for the following points.

  First, the slave unit 200 has a directional speaker 222 instead of the speaker 220. The directional speaker 222 cannot function as a normal speaker. The directional speaker 222 is, for example, a bone conduction speaker or a bone conduction ultrasonic speaker.

  The main body 100 also includes a speaker 140. The speaker 140 has a normal output function.

  FIG. 4 is a flowchart showing the operation of the mobile communication terminal shown in FIG. Of the processes shown in the figure, the processes shown in steps S10 to S30 are the same as those in the first embodiment, and thus the description thereof is omitted.

  When the selection input indicates that the directional output function is selected (step S40: Yes), the control unit 120 transmits an audio signal to the directional speaker 222 of the slave unit 200 (step S60). The directional speaker 222 outputs sound according to the received sound signal (step S70).

  When the selection input indicates that the normal output function is selected (step S40: No), the control unit 120 outputs an audio signal to the speaker 140. The speaker 140 outputs sound according to the sound signal output from the control unit 120 (step S80).

  Also according to this embodiment, the same effect as that of the first embodiment can be obtained. In the present embodiment, the directional speaker 222 may be a parametric speaker. In this case, a process similar to step S50 in FIG. 3 is performed between step S40 and step S60 in FIG.

(Third embodiment)
FIG. 5 is a block diagram illustrating a functional configuration of the mobile communication terminal according to the third embodiment. The mobile communication terminal according to the present embodiment relates to the first embodiment except that the slave unit 200 does not include the input unit 230 and that the main body unit 100 includes the input unit 150 instead. The configuration is the same as that of the mobile communication terminal. The function of the input unit 150 is the same as the function of the input unit 230.
Also according to this embodiment, the same effect as that of the first embodiment can be obtained.

(Fourth embodiment)
FIG. 6 is a block diagram showing a functional configuration of the mobile communication terminal according to the fourth embodiment. The mobile communication terminal according to the present embodiment has the same configuration as the mobile communication terminal according to the first embodiment except for the following points.

  First, instead of the slave unit 200, a second slave unit 300 is provided. The second slave unit 300 includes a wireless communication unit 310 and an input unit 320. The function of the wireless communication unit 310 is the same as that of the wireless communication unit 210 of the slave unit 200, and the function of the input unit 320 is the same as that of the input unit 230 of the slave unit 200.

  Further, the main body 100 has a speaker 142. The function of the speaker 142 is the same as that of the speaker 220 in the first embodiment.

That is, the second slave unit 300 functions as a remote controller for the main unit 100.
Also according to this embodiment, the same effect as that of the first embodiment can be obtained.

(Fifth embodiment)
FIG. 7 is a block diagram illustrating a functional configuration of a mobile communication terminal according to the fifth embodiment. The mobile communication terminal according to the present embodiment has the same configuration as that of the form communication terminal according to the first embodiment except for the following points.

  First, the slave unit 200 does not have the input unit 230. Instead, the mobile communication terminal has a second slave unit 300. The functional configuration of the second slave unit 300 is the same as that of the fourth embodiment.

  Also according to this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, since it is not necessary to provide the input part 230 in the subunit | mobile_unit 200, the subunit | mobile_unit 200 can be reduced in size.

  As mentioned above, although embodiment of this invention was described with reference to drawings, these are the illustrations of this invention, Various structures other than the above are also employable. For example, in each of the above-described embodiments, the control unit 120 determines whether or not to perform output with directivity in accordance with the selection input performed by the user. However, the directivity is determined based on the type of audio data. It may be determined whether or not the given output is performed. For example, when the audio data is music data or PoC (Push-to-Talk Over Cellular), the control unit 120 performs output with directivity. In addition, when the voice data is to read a mail, the control unit 120 may determine whether or not to perform output with directivity by the mail sender.

DESCRIPTION OF SYMBOLS 100 Main body part 110 External communication part 120 Control part 130 Wireless communication part 140 Speaker 142 Speaker 150 Input part 200 Child machine part 210 Wireless communication part 220 Speaker 222 Directional speaker 230 Input part 300 Child machine part 310 Wireless communication part 320 Input part

Claims (9)

Directional output function that transmits audio only to the user,
Normal output function that outputs audible sound as it is,
Control means for selecting and functioning one of the directivity output function and the normal output function;
A mobile communication terminal comprising: The mobile communication terminal according to claim 1,
A main body having a communication means for communicating with a communication network;
A slave unit having at least the directional output function;
With
The control means is a portable communication terminal that, when selecting the directivity output function, transmits audio data to be output from the main body to the slave unit. The mobile communication terminal according to claim 2,
An input means for receiving from the user a selection input indicating which of the directivity output function and the normal output function is selected;
The control means is a portable communication terminal for selecting and functioning one of the directivity output function and the normal output function according to the selection input. The mobile communication terminal according to claim 3,
The input means is a mobile communication terminal provided in the slave unit. The mobile communication terminal according to claim 3,
The input means is a mobile communication terminal provided in the main body. The mobile communication terminal according to claim 1,
A communication means for communicating with a communication network, the directivity output function, the normal output function, and a main body having a control means;
A slave unit having input means for receiving a selection input indicating whether to select the directivity output function or the normal output function from a user;
With
The slave unit transmits the selection input to the main unit,
The control means is a portable communication terminal for selecting and functioning one of the directivity output function and the normal output function according to the selection input. In the portable communication terminal according to any one of claims 1 to 6,
The directional output function is a mobile communication terminal that is a parametric speaker. The mobile communication terminal according to claim 7, wherein
Oscillating means that functions as a speaker
The control means includes
When the directivity output function is selected, a modulation signal obtained by modulating an audio signal for a parametric speaker is input to the oscillation means,
A portable communication terminal that inputs an audio signal to the oscillation means when the normal output function is selected. In the portable communication terminal as described in any one of Claims 1-5,
The directional output function is a portable communication terminal which is a bone conduction speaker or a bone conduction ultrasonic speaker.

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