JP2013066013A - Information communication device, information communication device concealing device, information communication device concealing method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the possibility that an information communication device is found by a third party in the case that a user is away from the information communication device.SOLUTION: A portable terminal device (an information communication device) 100 has: a short-range communication part 170 for performing short-range communication with a portable short-range communication device 500; short-range communication determination part 372 for determining a communication state between the short-range communication part 170 and a predetermined portable short-range communication device 500; and a concealing function controller 371 for executing a predetermined concealing function in the case that the short-range communication determination part is equal to or less than a predetermined communication state.

Description

  The present invention relates to an information communication device, an information communication device concealment device, an information communication device concealment method, and a program.

A technology is disclosed in which when an information communication device such as a mobile phone is left behind by a user, the information communication device or the like generates an alarm sound to make the user aware.
For example, a device for preventing misplacement for a mobile phone described in Patent Document 1 includes a mobile phone side device having a transmitter attached to a mobile phone, and a receiver for receiving a transmission signal from the transmitter attached to a belt of a wristwatch. And a user side device equipped with an alarm generating means for generating an alarm sound based on the reception output of the receiving unit, the alarm generating means is such that the mobile phone side device and the user side device are separated by a certain distance or more. An alarm sound is generated when

JP-A-10-334366

However, the situation where the user leaves the information communication device is not limited to misplacement. For example, there are cases where the information communication device is intentionally left from the information communication device for some reason, such as when the information communication device is placed on a desk in the office, moved to a toilet, a resting place or another department, or bathed at home.
As described above, when the user intentionally leaves the information communication device, the information communication device may be detected by a third party by causing the information communication device to generate an alarm sound as described above. Often unfavorable for. For example, when a user leaves a company mobile phone (information communication device) on a desk, the presence of the information communication device is known to those who are engaged in business in the same company as the user. However, if it is known to a third party, there is a risk of secret leakage or theft of the mobile phone, which is not preferable. Then, when a user leaves | separates from an information communication apparatus, it becomes a subject to reduce possibility that the said information communication apparatus will be discovered by the third party.

  An object of the present invention is to provide an information communication device, an information communication device concealment device, an information communication device concealment method, and a program that can solve the above-described problems.

  The present invention has been made to solve the above-described problems. An information communication device according to an aspect of the present invention includes a short-range communication unit that performs short-range communication with a predetermined communication device, the short-range communication unit, and the A short-range communication determination unit that determines a communication status with a predetermined communication device; and a control unit that executes a predetermined secret function when the short-range communication determination unit determines that the communication status is equal to or less than a predetermined communication status. It is characterized by doing.

  The information communication device concealment device according to one aspect of the present invention includes a short-range communication determination unit that determines a communication status of the information communication device with a predetermined communication device, and the short-range communication determination unit is equal to or less than the predetermined communication status. A control unit that causes the information communication device to execute a predetermined concealing function when it is determined that the information communication device is present.

  According to another aspect of the present invention, there is provided a method for concealing information communication equipment that determines a communication status between a short-range communication step for performing short-range communication with a predetermined communication device and the predetermined communication device at the short-range communication step. A short-range communication determining step; and a control step of executing a predetermined concealment function when it is determined in the short-range communication determining step that the communication state is equal to or less than a predetermined communication state.

A program according to one embodiment of the present invention is stored in a computer as an information communication device.
In a near field communication step for performing near field communication with a predetermined communication device, a near field communication determining step for determining a communication status with the predetermined communication device in the near field communication step, and the near field communication determining step And a control step for executing a predetermined concealment function when it is determined that the communication state is equal to or lower than a predetermined communication state.

  ADVANTAGE OF THE INVENTION According to this invention, when a user leaves | separates from an information communication apparatus, possibility that an information communication apparatus will be discovered by the third party can be reduced.

It is a schematic block diagram which shows the function structure of the portable terminal device in one Embodiment of this invention. It is a block diagram which shows the structural example of the audio | voice output part in the embodiment. It is explanatory drawing which shows the area | region where an audio | voice output part outputs an audio | voice in the same embodiment. In the embodiment, a portable terminal device is a flowchart which shows the procedure which performs the process regarding a secrecy function.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, taking as an example the case where the present invention is applied to a mobile terminal device. The present invention can be applied to various mobile terminal devices such as mobile phones and mobile information terminal devices. However, the application range of the present invention is not limited to the portable terminal device. For example, the present invention can be applied to various portable information communication devices having a short-range communication function such as a notebook personal computer and a tablet computer.

  FIG. 1 is a schematic block diagram showing a functional configuration of a mobile terminal device according to an embodiment of the present invention. As shown in the figure, the mobile terminal device 100 includes a display unit 110, an operation input unit 120, a voice input unit 130, a voice output unit 140, a wireless communication unit 150, a communication relay unit 160, and a short distance. The communication unit 170, the imaging unit 180, the appearance unit 190, the control unit 210, and the storage unit 220 are provided. The control unit 210 includes a display control unit 310, an input processing unit 320, an audio processing unit 330, a communication control unit 340, an imaging control unit 350, an appearance control unit 360, and an application execution unit 370. The application execution unit 370 includes a secret function control unit 371 and a short-range communication determination unit 372.

  The near field communication unit 170 performs near field communication with a portable near field communication device (predetermined communication device) 500 carried by the user. The portable short-range communication device 500 is a communication device that can perform wireless communication with the mobile terminal device 100 at a distance of a maximum of several tens of centimeters or a maximum of several meters. The portable short-range communication device 500 has a form that is always carried by the user, such as a wristwatch, a pendant, an ID (Identifier) card, a headset, or an IC (Integrated Circuit) card, or is always carried by the user. It is configured to accompany what you do.

  The mobile terminal device 100 is a terminal device called a smart phone having a function that combines a function of a mobile phone and a function of a personal digital assistant (PDA), for example, and performs a voice call according to a user operation. It also performs various functions such as browsing the Internet, recording and playback of images, videos, music, and e-mail functions.

The display unit 110 has a display screen such as a liquid crystal display or an organic EL (Organic Electro-Luminescence) display, and displays various images such as a moving image, a still image, and text (characters).
The operation input unit 120 includes an input device such as a touch sensor (touch panel) or a push button provided on the display screen of the display unit 110, for example, and receives a user operation.

The voice input unit 130 has a microphone, collects voices uttered by the user and ambient sounds, converts them into voice signals, and outputs them to the voice processing unit 330.
The voice output unit 140 is a device that can output voice by changing directivity, and outputs voice such as a call sound, a ringing tone, and music. The audio output unit 140 includes, for example, a plurality of speakers and a control circuit that controls the phase of the sound output from each speaker, and adjusts the phase of the sound output from each speaker to thereby control the directivity of the sound. To change. Or the audio | voice output part 140 may comprise a super-directional speaker and a normal speaker, and may make it change directivity by switching a speaker.

  FIG. 2 is a schematic block diagram showing a configuration example of the audio output unit 140 in the latter configuration (configuration including a superdirective speaker and a normal speaker). In the example of the figure, the audio output unit 140 includes a switching unit 141, an amplification unit 142, a normal speaker (for example, an omnidirectional speaker) 143, a modulation and amplification unit 144, and an oscillator 145. Among these units, the modulation and amplification unit 144 and the oscillator 145 constitute a super-directional speaker system called a parametric speaker system.

  The switching unit 141 receives an audio signal output from the audio processing unit 330 (that is, an electrical signal indicating audio) and a control signal such as a switching signal. When the switching signal output from the control unit 210 is input via the audio processing unit 330, the switching unit 141 uses either the normal speaker 143 or the oscillator 145 as an output destination according to the switching signal. Select and output audio signal.

  The amplifying unit 142 amplifies the audio signal output from the switching unit 141 and outputs the amplified audio signal to a normal speaker 143. The normal speaker 143 receives an audio signal in the audible frequency band and outputs audio (ie, sound waves) in the audible frequency band. On the other hand, the modulation and amplification unit 144 modulates a predetermined ultrasonic signal with the audio signal output from the switching unit 141, amplifies the modulation signal, and outputs the amplified signal to the oscillator 145.

  The oscillator 145 is configured to include one or a plurality of ultrasonic transducers, and outputs an ultrasonic wave modulated by an audio signal. The oscillator 145 emits an ultrasonic wave having a large amplitude that generates nonlinear characteristics when the ultrasonic wave propagates through the air, thereby outputting a highly directional (sharp) sound.

  FIG. 3 is an explanatory diagram schematically showing the directivity of the sound output from the sound output unit 140 shown in FIG. FIG. 3 shows the positional relationship between the mobile terminal device 100 and the user 401 and other persons 402 to 406, the audio audible area A <b> 1 output using the normal speaker 143, and the output using the oscillator 145. The audio audible area A2 is shown in a plan view. In the example shown in the figure, the sound output from the normal speaker 143 reaches all of the six persons 401 to 406 including the user 401. On the other hand, the sound output using the oscillator 145 reaches only the user 401 and the persons 402 and 403 located on both sides thereof.

  The radio communication unit 150 performs communication with a radio base station. Specifically, the wireless communication unit 150 performs modulation processing on the signal output from the communication control unit 340 and transmits the signal as a wireless signal, and performs demodulation processing on the received wireless signal to perform communication. Output to the control unit 340.

The communication relay unit 160 functions as an access point of a wireless LAN (Local Area Network), for example, and a network connected to the wireless communication unit 150 via the communication control unit 340 and the wireless communication unit 150, and the mobile terminal device 100 Relay communication with a communication device that can access the network. That is, the communication device connects the mobile terminal device 100 to the network using the access point.
In response to an instruction from the communication control unit 340, the communication relay unit 160 transmits connection information at a predetermined time interval (broadcast transmission), or operates in a so-called stealth mode without transmitting connection information. The connection information here is information required when connecting to the communication relay unit 160 as an access point. The communication relay unit 160 transmits, for example, an SSID (Service Set Identifier) that is identification information of an access point as connection information.
In a stealth mode in which connection information such as SSID is not transmitted, only a communication device in which connection information such as SSID is set in advance can be connected to the communication relay unit 160.

  The short-range communication unit 170 performs wireless communication with the portable short-range communication device 500 or the like using a predetermined short-range communication method such as Bluetooth (registered trademark).

The imaging unit 180 has, for example, a camera including an imaging lens (including a focus lens and a zoom lens) and an imaging element to perform imaging. Specifically, the imaging unit 180 receives an input of a light beam from the subject, and forms a subject image on the image sensor with focus according to the position of the focus lens and zoom according to the position of the zoom lens. Then, the imaging unit 180 converts the formed subject image into an image signal in the imaging element and outputs the image signal to the imaging control unit 350.
The imaging unit 180 always outputs an image signal in a state where the mobile terminal device 100 executes the imaging function. The camera image acquired by the imaging unit 180 is displayed on the display unit 110 as a viewfinder image. Further, the camera image acquired by the imaging unit 180 is written (saved) in the storage unit 220 as a captured image at the timing of saving the captured image instructed by the operation received by the operation input unit 120.

  The appearance unit 190 is a display device provided outside the housing of the mobile terminal device 100. The appearance unit 190 is configured using a non-volatile display medium called color electronic paper, for example. Or you may make it the external appearance part 190 comprise other than color electronic paper, such as being comprised using a flexible liquid crystal display and an organic EL display.

  The control unit 210 controls each unit of the mobile terminal device 100 to execute various functions. The control unit 210 is realized, for example, when a CPU (Central Processing Unit) included in the mobile terminal device 100 reads out and executes a program from a memory included in the mobile terminal device 100.

  The display control unit 310 controls the display unit 110 to display various images. Specifically, the display control unit 310 generates a screen display signal based on moving image data, still image data, text data, and the like output from the application execution unit 370 and outputs the screen display signal to the display unit 110. Then, an image is displayed on the display unit 110.

The input processing unit 320 outputs a signal corresponding to the operation received by the operation input unit 120 to the application execution unit 370.
The audio processing unit 330 causes the audio output unit 140 to output audio by converting audio data output from the application execution unit 370 into an electric signal and outputting the electric signal to the audio output unit 140. In addition, the voice processing unit 330 converts the electrical signal output by the voice input unit 130 to collect and output voice to voice data, and outputs the voice data to the application execution unit 370.

The communication control unit 340 performs processing such as encoding on the data output from the application execution unit 370, outputs the data to the wireless communication unit 150, modulates the data, and transmits the data as a wireless signal. In addition, the communication control unit 340 performs processing such as decoding on the signal received and demodulated by the wireless communication unit 150, extracts data, and outputs the data to the application execution unit 370.
Further, the communication control unit 340 performs predetermined conversion processing on the data received from the communication device connected to the communication relay unit 160 and transmits the data to the radio base station via the radio communication unit 150. Further, the communication control unit 340 performs a predetermined conversion process on the data received from the radio base station, and transmits the data to the communication device connected to the communication relay unit 160 via the radio communication unit 150.

Further, the communication control unit 340 controls whether the communication relay unit 160 sends connection information such as an SSID or suppresses sending in accordance with an instruction output from the application execution unit 370.
Further, the communication control unit 340 performs processing such as encoding on the data output from the application execution unit 370, outputs the data to the short-range communication unit 170, modulates the data, and transmits the data as a radio signal. In addition, the communication control unit 340 performs processing such as decoding on the signal received and demodulated by the short-range communication unit 170 to extract data, and outputs the data to the application execution unit 370.

  The imaging control unit 350 performs control of the imaging unit 180 and processing of signals output from the imaging unit 180. The imaging control unit 350 converts the electrical signal output from the imaging unit 180 into image data of a moving image frame or a still image and outputs the converted image data to the application execution unit 370. Further, the imaging control unit 350 adjusts the focus in the imaging unit 180 by moving the focus lens of the imaging unit 180 in accordance with the focus instruction output from the application execution unit 370. In addition, the imaging control unit 350 adjusts the zoom in the imaging unit 180 by moving the zoom lens of the imaging unit 180 in accordance with the zoom instruction output from the application execution unit 370.

  The appearance control unit 360 controls the display color of the appearance unit 190 based on data representing the color of the appearance output from the application execution unit 370.

  The application execution unit 370 executes an application program and provides various functions such as a voice call function, a browser function, an imaging function, and an e-mail function. In particular, the secret function control unit 371 of the application execution unit 370 executes the secret function. Further, the short-range communication determination unit 372 of the application execution unit 370 provides a short-range communication determination function. Next, the secrecy function and the near field communication determination function will be described.

  The near field communication determination unit 372 determines the communication status between the near field communication unit 170 and the portable near field communication device 500 as a near field communication determination function. More specifically, the short-range communication determination unit 372 determines that the communication status between the short-range communication unit 170 and the portable short-range communication device 500 is equal to or lower than a predetermined communication status (that is, a predetermined communication status or lower). It is determined whether or not.

In the present embodiment, the short-range communication determination unit 372 determines that the communication status is better than the predetermined communication status when the short-range communication unit 170 and the portable short-range communication device 500 can communicate with each other, and communication is not performed. When it is possible, it is determined that the communication status is equal to or less than a predetermined communication status.
However, various criteria other than the availability of communication can be used as the determination criteria of the short-range communication determination unit 372. For example, the short-range communication determination unit 372 determines the communication status based on the radio wave intensity or the S / N ratio (Signal To Noise Ratio) in communication between the short-range communication unit 170 and the portable short-range communication device 500. You may do it. For example, when the short-range communication unit 372 determines that the radio field intensity measurement value is larger than a predetermined value, the short-range communication unit 372 determines that it is better than the predetermined communication situation. You may make it determine with it.

  The short-range communication determination unit 372 performs communication by determining whether short-range communication is performed or stopped between the short-range communication unit 170 and the portable short-range communication device 500, for example. Judgment is made.

More specifically, for example, the portable short-range communication device 500 periodically transmits a radio signal to the mobile terminal device 100. Then, the short-range communication determination unit 372 determines whether the short-range communication unit 170 has received the wireless signal transmitted from the portable short-range communication device 500, so that the short-range communication unit 170 can It is determined whether or not short-range communication with the distance communication device 500 is possible.
That is, when it is determined that the short-range communication unit 170 has received a wireless signal transmitted from the portable short-range communication device 500 (that is, when it is determined that short-range communication is being performed), the short-range communication determination unit 372 determines that the short-range communication unit 170 is capable of short-range communication with the portable short-range communication device 500.
On the other hand, when it is determined that the short-range communication unit 170 has not received the wireless signal transmitted from the portable short-range communication device 500 (that is, when it is determined that the short-range communication is stopped), the short-range communication is performed. The determination unit 372 determines that the short-range communication unit 170 is not capable of short-range communication with the portable short-range communication device 500. The short-range communication determination unit 372 notifies the concealment function control unit 371 of the determination result as to whether communication is possible.

Here, when the short-range communication unit 170 is incapable of short-range communication with the portable short-range communication device 500, it is considered that the user has left the mobile terminal device 100. In such a case, the secret function control unit 371 executes the first to third secret functions shown below.
The secret function here is a function that reduces the possibility of finding the mobile terminal device 100 from at least a certain area. That is, the concealment function limits the energy reaching the area from the mobile terminal device 100 for at least a certain area (for example, reduces the sound output from the mobile terminal apparatus 100 or reflects the mobile terminal apparatus 100 to reflect This is a function for limiting the color of light to a specific color).

  The first concealment function is a function that strongly changes the directivity of the audio output unit 140. When the short-range communication determination unit 372 determines that the short-range communication unit 170 is capable of short-range communication with the portable short-range communication device 500, the concealment function control unit 371 performs a voice operation, for example, as in the area A1 in FIG. The directivity of the output unit 140 is set weak. On the other hand, when the short-range communication determination unit 372 determines that the short-range communication unit 170 is not capable of short-range communication with the portable short-range communication device 500, the concealment function control unit 371, for example, in the area A2 of FIG. Thus, the directivity of the audio output unit 140 is set strongly.

  As described above, the secret function control unit 371 appropriately sets the directivity of the audio output unit 140 so that when the audio output unit 140 outputs the sound, the location range of the person who notices the sound is appropriately limited. be able to. For example, when the sound output unit 140 outputs an alarm sound or a ringtone, only the person in front of the mobile terminal device 100 can be made aware.

In the second concealment function, the image capturing unit 180 captures the periphery of the mobile terminal device 100 to detect the surrounding color, and the display color of the appearance unit 190 and the display of the display unit 110 are the same or similar to the detected color. This is a function that changes color.
When the short-range communication determination unit 372 determines that the short-range communication unit 170 is capable of short-range communication with the portable short-range communication device 500, the secret function control unit 371 includes the imaging unit 180 via the imaging control unit 350. Is controlled to perform imaging, and image data around the portable terminal device 100 is acquired. Subsequently, the concealment function control unit 371 detects the surrounding color of the mobile terminal device 100 from the image data acquired from the imaging control unit 350. Then, the concealment function control unit 371 detects the display color of the display unit 110 via the display control unit 310, or a similar color (a color corresponding to the color of the image around the captured mobile terminal device 100). Set to. Similarly, the concealment function control unit 371 sets the display color of the appearance unit 190 to the detected color or a similar color via the appearance control unit 360.
By doing in this way, possibility that the portable terminal device 100 will be visually discovered by the third party can be reduced.

  The third concealment function is a function of suppressing (that is, stopping) transmission of connection information while the communication relay function by the communication relay unit 160 is enabled. When the short-range communication determination unit 372 determines that the short-range communication unit 170 is capable of short-range communication with the portable short-range communication device 500, the confidentiality function control unit 371 transmits the communication relay unit via the communication control unit 340. 160 is controlled to suppress transmission of connection information such as SSID. By suppressing the transmission of the connection information in this way, unauthorized use of the communication relay function of the mobile terminal device 100 by a third party can be prevented.

  The storage unit 220 is realized by, for example, a storage area of a memory included in the mobile terminal device 100 and stores various data. The storage unit 220 stores captured image data (image data of a captured image) written by the application execution unit 370. The storage unit 220 stores in advance various programs executed by the CPU of the mobile terminal device 100.

  Next, the operation of the mobile terminal device 100 will be described with reference to FIG. FIG. 4 is a flowchart showing a processing procedure when the mobile terminal device 100 executes the concealment function. The portable terminal device 100 starts the process of FIG. 4 by calling a predetermined program that configures the concealment function control unit 371 at a predetermined cycle.

In the process of FIG. 6, the short-range communication determination unit 372 first determines whether the short-range communication between the short-range communication unit 170 and the portable short-range communication device 500 has been stopped. The distance communication unit 170 determines whether short-range communication with the portable short-range communication device 500 is impossible. (Step S110).
When it is determined that the near field communication is stopped, that is, when it is determined that the near field communication is not possible (step S110: YES), the concealment function control unit 371 receives the sound output unit via the sound processing unit 330. The directivity of 140 is set strongly (step S120).

Further, the concealment function control unit 371 controls the imaging unit 180 to capture an image around the mobile terminal device 100, detects the surrounding color based on the obtained image data, and a color similar to the detected color. The display color of the appearance part 190 and the display color of the display part 110 are set to (or the same color) (step S130).
Also, the secret function control unit 371 suppresses transmission of predetermined connection information such as an SSID from the communication relay unit 160 (step S140).
Thereafter, the process of FIG.

On the other hand, if it is determined in step S110 that short-range communication has not stopped, that is, if the short-range communication unit 170 determines that short-range communication with the portable short-range communication device 500 is possible (step S110: NO) ) The secret function control unit 371 cancels the secret function set in steps S120 to S140 (step S150). That is, in step S150, the concealment function control unit 371 returns the directivity of the audio output unit 140 to a normal state (that is, a state where the directivity is not strong), and changes the display colors of the appearance unit 190 and the display unit 110 to normal. Returning to the state (that is, the state in which the display color has not been changed by the concealment function) and returning the connection information transmission state from the communication relay unit 160 to the normal state (that is, the state in which the transmission is not suppressed) are performed.
Thereafter, the process of FIG.

  As described above, when the mobile terminal device 100 performs the process of FIG. 4 and the short-range communication unit 170 determines that short-range communication with the portable short-range communication device 500 is impossible, the mobile terminal device 100 performs the concealment function. Run.

  As described above, the mobile terminal device 100 executes the concealment function when the short-range communication determination unit 372 determines that the short-range communication unit 170 cannot perform short-range communication with the portable short-range communication device 500. To do. As described above, when the short-range communication unit 170 is incapable of short-range communication with the portable short-range communication device 500, it is considered that the user is away from the mobile terminal device 100. In such a case, the secret function control unit 371 executes the above secret function, thereby reducing the possibility that the mobile terminal device 100 is discovered by a third party.

  Moreover, according to the function which strengthens the directivity of the audio | voice output part 140 among the secrecy functions of this embodiment, when outputting an audio | voice, the location range of the person who notices the audio | voice can be limited appropriately. For example, when an alarm sound or ringtone is output, only the person in front of the mobile terminal device 100 can be made aware.

In the present embodiment, the directivity of the sound is strengthened, but this is different from stopping the sound output as follows. That is, if the output of the voice is stopped, it is difficult for people around the mobile terminal device 100 to find the mobile terminal device 100 uniformly.
On the other hand, enhancing the directivity of voice has the following special effects.
A person who is in a range where a sound with enhanced directivity can be heard (for example, the front of the mobile terminal apparatus 100) is more likely to be aware of the presence of the mobile terminal apparatus 100 than a person who is in an inaudible range. There are various advantages to letting such a person hear the sound. For example, a person who notices a ringtone can tell the user that there is an incoming call or can answer the call.

  For example, when the user of the mobile terminal device 100 leaves the mobile terminal device 100 while it is placed on a desk or the like, the directivity of the output voice is increased so that only the person in the next seat can hear the sound. In this case, if the mobile terminal device 100 receives an incoming call and outputs a ringtone with a voice with enhanced directivity, the person in the next seat can notice the incoming call. As a result, when a person closely related to the user is present in the adjacent seat, the adjacent seat person can be notified of the incoming user searching for the user who is away. Alternatively, the person in the next seat can make a call.

  On the other hand, a person other than the adjacent seat, for example, a person at the opposite table cannot hear the ringtone, so that the possibility that the mobile terminal device 100 is discovered by a third party can be reduced. Thereby, even when the person in the next seat also leaves the seat, it is possible to reduce the risk of confidential leakage by a third party and theft of the mobile terminal device 100.

  Further, even when there is no risk of security leakage or theft of the mobile terminal device 100 such as in an office where only employees can enter the room, noise can be prevented by limiting the area where the voice output unit 140 outputs the voice. . For example, a person who has a weak relationship with a user, such as a person in another department, may not be able to identify the user even if he / she notices the presence of a mobile phone or an incoming call and cannot deal with a call or the like. In this case, the ringtone is a noise for a person who has a weak relationship with the user. Therefore, such noise can be prevented by limiting the area where the voice output from the voice output unit 140 reaches.

  The same applies to the case where the voice output unit 140 outputs various sounds other than the ringtone, such as a mail reception sound and an alarm sound. Also in this case, the secret function control unit 371 executes the secret function, so that the location range of the person who notices the output sound can be appropriately limited, and the portable terminal device 100 is discovered by a third party. The possibility can be reduced.

  Note that the minimum configuration in the present embodiment is the short-range communication unit 170, the short-range communication determination unit 372, and the control unit 210 (particularly, the secret function control unit 371). The short-range communication unit 170 communicates with the portable short-range communication device 500 (attempts to communicate), and determines whether the short-range communication unit 170 can perform short-range communication with the portable short-range communication device 500. The determination unit 372 can determine whether or not the user has left the mobile terminal device 100. When the short-range communication determination unit 372 determines that short-range communication is not possible, the control unit 210 executes a predetermined concealment function so that when the user leaves the mobile terminal device 100, the mobile terminal device 100 The possibility of being discovered by a third party can be reduced.

The concealment function control unit 371 and the short-range communication determination unit 372 may constitute a mobile terminal device concealment device.
This portable terminal device concealment device is incorporated in the portable terminal device 100 as a component of the portable terminal device 100, for example. Alternatively, the mobile terminal device concealment device may be installed outside the casing of the mobile terminal device 100 and may operate on the mobile terminal device 100 to execute the concealment function.
For example, the mobile terminal device concealment device includes a signal output unit that outputs a signal to the mobile terminal device 100. The concealment function control unit (control unit) 371 instructs the portable terminal device 100 to increase the directivity of the output sound when the short-range communication determination unit 372 determines that short-range communication is not possible. Is output to the signal output unit.
Thereby, the portable terminal device 100 can perform a secrecy function similarly to said case.

It should be noted that a program for realizing all or part of the functions of the control unit 210 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read by a computer system and executed. You may perform the process of. Here, the “computer system” includes an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used.
The “computer-readable recording medium” means a portable medium such as a flexible disk, a magneto-optical disk, a ROM (Read Only Memory), a CD (Compact Disc) -ROM, or a hard disk built in the computer system. Refers to the device. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 100 Portable terminal device 110 Display part 120 Operation input part 130 Audio | voice input part 140 Audio | voice output part 150 Wireless communication part 160 Communication relay part 170 Short-distance communication part 180 Imaging part 190 Appearance part 210 Control part 220 Storage part 310 Display control part 320 Input Processing unit 330 Audio processing unit 340 Communication control unit 350 Imaging control unit 360 Appearance control unit 370 Application execution unit 371 Concealment function control unit 372 Short range communication determination unit

Claims (9)

A near field communication unit that performs near field communication with a predetermined communication device;
A near field communication determining unit that determines a communication status between the near field communication unit and the predetermined communication device;
A control unit that executes a predetermined concealment function when it is determined that the short-range communication determination unit is below a predetermined communication situation;
An information communication device comprising: Provided with a voice output unit that can output voice by changing the directivity,
The said control part is controlled so that the said directivity of the said audio | voice output part becomes strong, when the said short distance communication determination part determines with it being below a predetermined | prescribed communication condition. Information communication equipment. The audio output unit includes an omnidirectional speaker and a parametric speaker.
The control unit causes the parametric speaker to output a sound when the short-range communication determination unit determines that the predetermined communication state is equal to or lower than the predetermined communication state, and the short-range communication determination unit is better than the predetermined communication state. The information communication apparatus according to claim 2, wherein when the determination is made, the omnidirectional speaker outputs a sound. An imaging unit for imaging the periphery of the information communication device;
At least one of a display unit for displaying an image or an appearance unit whose display color can be changed;
Comprising
When the control unit determines that the short-range communication determination unit is equal to or less than a predetermined communication state, a surrounding image captured by the imaging unit with at least one display color of the display unit or the appearance unit The information communication device according to any one of claims 1 to 3, wherein the information communication device is set to a color according to the color. A communication relay unit that relays wireless communication;
A wireless communication unit for sending connection information of the wireless communication;
Comprising
The control unit controls the wireless communication unit to suppress transmission of the connection information when the short-range communication determination unit determines that the communication status is equal to or less than a predetermined communication status. 5. The information communication device according to any one of 4. A near field communication determination unit for determining the communication status of the information communication device with a predetermined communication device;
A control unit that causes the information communication device to execute a predetermined concealment function when the short-range communication determination unit determines that the communication state is equal to or less than a predetermined communication state;
An information communication device concealment device comprising: Comprising a signal output unit for outputting a signal to the information communication device;
When the short-range communication determination unit determines that the short-range communication determination unit is equal to or less than a predetermined communication status, the control unit outputs a signal that instructs the information communication device to increase the directivity of output sound. The information communication device concealment device according to claim 6, wherein A near field communication step for performing near field communication with a predetermined communication device;
A near field communication determining step for determining a communication status with the predetermined communication device in the near field communication step;
A control step for executing a predetermined concealment function when it is determined that the short-range communication determination step is equal to or less than a predetermined communication state;
An information communication device concealing method comprising: To computer as information communication equipment,
A near field communication step for performing near field communication with a predetermined communication device;
A near field communication determining step for determining a communication status with the predetermined communication device in the near field communication step;
A control step for executing a predetermined concealment function when it is determined that the short-range communication determination step is equal to or less than a predetermined communication state;
A program for running

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