JP2005333252A - Information exchange system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information exchange system capable of properly transmitting environmental conditions of a sender side to a receiver side. <P>SOLUTION: The information exchange system 1a includes a first microphone 101 and a second microphone 102 provided at a predetermined distance from each other for acquiring peripheral sound of a cellular phone 10 on the sender side, a direction identifier 103 for identifying the direction of a sound source of the sound relative to the phone 10 and generating direction identifying information indicating the identified direction, a sound processor 104 for making the sound in a predetermined band of the acquired sound into processed sound, and an information transmitter 105 for associating the direction identifying information generated by the part 103 with the processed sound processed by the processor 104 for sending it to a cellular phone 20 on the receiver side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information exchange system capable of notifying a communication terminal on the receiving side of the situation around the communication terminal on the transmitting side.

The purpose of a communication terminal such as a mobile phone is to accurately transmit information that the user wants to transmit to the other terminal. In order to realize this object, a technique for filtering ambient noise is used (for example, see Patent Document 1 below).
JP 11-338499 A

  By the way, in the conventional mobile phone, since the voice other than the voice of the speaker is filtered, it is difficult to hear the voice around the other party. Therefore, the present inventor has recognized that it is difficult to accurately grasp the other party's situation, and that it is a problem to be solved in consideration of more advanced communication.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an information exchange system that can accurately transmit the situation around the transmission side to the reception side.

  The information exchange system according to the present invention includes (1) at least two or more audio acquisition means arranged at a predetermined interval from each other in order to acquire audio around the transmitting communication terminal, and (2) audio Based on the voice acquired by the acquisition means, the direction specifying means for specifying the relative direction of the acquired voice generation source with respect to the transmission side communication terminal and generating the direction specifying information indicating the specified direction; (3 ) A voice processing unit that converts the voice in the predetermined band of the voice acquired by the voice acquisition unit into a processed voice; and (4) associates the direction specifying information generated by the direction specifying unit with the processed voice processed by the voice processing unit. Information transmitting means for transmitting to the receiving communication terminal.

  According to the information exchange system of the present invention, since the direction specifying information is generated by specifying the relative direction of the acquired voice generation source with respect to the transmission side communication terminal, the acquired voice can be viewed from the transmission side communication terminal. You can see if it is coming from the direction. In addition, since the direction specifying information and the processed voice are associated with each other and transmitted to the receiving communication terminal, the receiving communication terminal can perform information processing based on the processed voice and the direction in which the processing has occurred. Further, since the processed voice is a voice in a predetermined band, a voice excluding a voice in an unnecessary band can be transmitted to the receiving communication terminal.

  In the information exchange system of the present invention, it is also preferable that the voice acquisition means has a unidirectional microphone, and is arranged so that axes indicating the directivities of the respective microphones intersect each other. Since the voice acquisition means is arranged so that the axis indicating the directivity of the unidirectional microphone intersects, the time difference between the specific voices that reach the respective voice acquisition means and the directionality based on the directivity information Therefore, it is possible to accurately grasp the relative direction of the generation source with respect to the transmission side communication terminal.

  In the information exchange system of the present invention, the information receiving means for receiving the direction specifying information and the processed voice transmitted by the information transmitting means, and the color information determination for determining the color information corresponding to the processed voice received by the information receiving means. It is also preferable to include means, display position determining means for determining a position for displaying the color information based on the direction specifying information received by the information receiving means, and display means for displaying the color information at the determined position. Since the color information is determined in correspondence with the processed voice transmitted from the transmission side communication terminal, the auditory information can be converted into visual information. In addition, since the color information is displayed at a position based on the direction specifying information, it is possible to display on the receiving communication terminal what kind of sound is acquired from which direction in the transmitting communication terminal.

  According to the present invention, the situation around the transmission side can be accurately transmitted to the reception side.

  The knowledge of the present invention can be easily understood by considering the following detailed description with reference to the accompanying drawings shown for illustration only. Subsequently, embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  The information transmission system 1a of this embodiment will be described with reference to FIG. FIG. 1 is a diagram showing a configuration of the information transmission system 1a. The information transmission system 1a includes a mobile phone 10 that is a transmission side communication terminal and a mobile phone 20 that is a reception side communication terminal. The mobile phone 10 and the mobile phone 20 are configured to be able to transmit and receive information to and from each other via a mobile communication network (not shown). In this embodiment, for convenience of explanation, it is divided into a transmission side communication terminal and a reception side communication terminal, but each function described below is shared and one mobile phone is used as a reception side even if it is a transmission side. May also work.

  Subsequently, the transmitting-side mobile phone 10 will be described. The cellular phone 10 physically includes functional components such as a CPU, a RAM, a frequency conversion chip, a power amplifier, a flash memory, an analog / digital conversion chip, a microphone, a speaker, a liquid crystal display, and a numeric keypad.

  The mobile phone 10 includes, as functional components, a first microphone 101 (sound acquisition unit), a second microphone 102 (sound acquisition unit), a direction specifying unit 103 (direction specifying unit), and a sound processing unit 104 (sound). Processing means) and an information processing unit 105 (information processing means). Subsequently, each component will be described.

  The first microphone 101 and the second microphone 102 are sound acquisition portions that are arranged at a predetermined interval from each other in order to acquire sound around the mobile phone 10. The first microphone 101 and the second microphone 102 output the acquired sound as an electrical signal to the direction specifying unit 103 and the sound processing unit 104. The first microphone 101 and the second microphone 102 are unidirectional microphones, and the first microphone 101 and the second microphone 102 are arranged so that their directional axes intersect.

  More specifically, FIG. 2 will be referred to in order to explain the arrangement of the first microphone 101 and the second microphone 102. FIG. 2 is a diagram illustrating a state in which the user 30 is using the mobile phone 10. As shown in FIG. 2, the first microphone 101 and the second microphone 102 are respectively disposed at one end and the other end of the upper part of the main body of the mobile phone 10. Therefore, the first microphone 101 and the second microphone 102 are arranged apart from each other by the main body width of the mobile phone 10.

  The first microphone 101 and the second microphone 102 are arranged so that the directivity axes α and β of the first microphone 101 and the second microphone 102 form a predetermined angle θ. For example, if the axes of the first microphone 101 and the second microphone 102 are arranged along the axis γ, the sound is generated at the position 40 or the sound generated at the position 41 symmetrical with respect to the axis γ. Cannot be determined. However, when the first microphone 101 and the second microphone 102 are arranged as shown in FIG. 2, it is possible to know in which direction the sound source is in accordance with the directivity.

  Returning to FIG. 1, the direction specifying unit 103 specifies the relative direction of the acquired sound source based on the sound acquired by the first microphone 101 and the second microphone 102, and the specified direction. It is a part which produces | generates the direction specific information which shows. The direction specifying unit 103 outputs the generated direction specifying information to the information transmitting unit 105.

  A more specific operation of the direction specifying unit 103 will be described with reference to FIG. FIG. 3 is an electrical signal indicating the sound output from the first microphone 101 and the second microphone 102 when a specific sound is generated at the position 40 in FIG. 3 is an electric signal output from the second microphone 102, and a B part of FIG. 3 is an electric signal output from the first microphone 101. As shown in FIG. 2, the sound generated at the position 40 reaches the second microphone 102 earlier than the first microphone 101. Therefore, as shown in FIG. 3, a time difference of Δt occurs between the electrical signals output from the first microphone 101 and the second microphone 102. The direction specifying unit 103 specifies the direction of the sound source from the Δt and the sound speed, and the directivity characteristics of the first microphone 101 and the second microphone 102.

  Returning to FIG. 1, the sound processing unit 104 is a part that converts the sound in the predetermined band of the sound acquired by the first microphone 101 and the second microphone 102 into processed sound. More specifically, the audio processing unit 104 has a band-pass filter function, extracts only audio in a preset band, and outputs it to the information transmission unit 105 as processed audio.

  The information transmitting unit 105 is a part that associates the direction specifying information output from the direction specifying unit 103 with the processed voice output from the voice processing unit 104 and transmits the correlated information to the mobile phone 20.

  Subsequently, the mobile phone 20 on the receiving side will be described. The cellular phone 20 physically includes functional components such as a CPU, a RAM, a frequency conversion chip, a power amplifier, a flash memory, an analog / digital conversion chip, a microphone, a speaker, a liquid crystal display, and a numeric keypad.

  The cellular phone 20 includes, as functional components, an information receiving unit 201 (information receiving unit), a color information determining unit 202 (color information determining unit), a display position determining unit 203 (display position determining unit), and a display unit. 204 (display means) and a color information storage unit 250. Subsequently, each component will be described.

  The information receiving unit 201 is a part that receives the direction specifying information and the processed voice transmitted by the information transmitting unit 105 of the mobile phone 10. The information receiving unit 201 is a part that outputs the received direction specifying information and processed audio to the color information determining unit 202.

  The color information determination unit 202 is a part that determines color information corresponding to the processed voice received by the information reception unit 201. More specifically, the color information determination unit 202 performs frequency analysis of the processed sound output from the information reception unit 201. The color information determination unit 202 determines color information from the information stored in the color information storage unit 250 based on the analysis result. The color information determination unit 202 outputs the determined color information to the display position determination unit 203 together with the direction specifying information.

  An example of information stored in the color information storage unit 250 will be described with reference to FIG. As shown in FIG. 4, the color information storage unit 250 stores “frequency”, “scale”, and “color” in association with each other. For example, if the “frequency” is a multiple of 264 Hz, the “scale” is “do” and the “color” is “red”. That is, the color information determination unit 202 determines the frequency from the analysis result of the processed voice, and determines color information corresponding to the determined frequency.

  Returning to FIG. 1, the display position determination unit 203 is a part that determines a position for displaying color information based on the direction specifying information received by the information reception unit 201. More specifically, the display position determination unit 203 displays the color information output from the color information determination unit 202 on the display unit 204 based on the direction specifying information output from the color information determination unit 202. Decide. The display position determination unit 203 outputs information for specifying the determined position and color information to the display unit 204.

  The display unit 204 is a part that displays color information at the position determined by the display position determination unit 203. A display mode of the display unit 204 will be described with reference to FIG. FIG. 5 is a diagram showing a state where the user 31 is using the mobile phone 20. As shown in FIG. 5, the display unit 204 is provided at a position different from the normal display 205. In the example shown in FIG. 5, the display unit 204 is configured as a display portion that also serves as a numeric keypad. Accordingly, the display unit 204 is divided into a plurality of parts corresponding to the numeric keypad, and in the mode used as a numeric keypad, characters are assigned to these divided parts. In the vicinity of the center of the display unit 204, a symbol 204a indicating a counterpart communication terminal (the mobile phone 10 in this embodiment) is displayed. When sound is generated at the position 40 shown in FIG. 2, the symbol 204b is displayed in a color corresponding to the generated sound at a position corresponding to the sound. In addition, when sound is generated at the position 41 shown in FIG. 2, the symbol 204c is displayed in a color corresponding to the generated sound at a position corresponding to the sound.

  Therefore, the user 31 can grasp the state of the other side of the user 30 on the display unit 204 while checking the state of the other side of the user 30 on the display 205. For example, since the surrounding voice that is buried in the voice spoken by the other party's user can be displayed as color information as described above, the situation around the other party can be grasped more accurately.

  The effect of this embodiment is demonstrated. Since the direction specifying unit 103 specifies the relative direction of the sound source (for example, the position 40 in FIG. 2) acquired by the first microphone 101 and the second microphone with respect to the mobile phone 10, and generates the direction specifying information. It is possible to know from which direction the acquired voice is generated when viewed from the mobile phone 10. In addition, since the information transmission unit 105 associates the direction specifying information and the processed voice and transmits them to the mobile phone 20 on the receiving side, the mobile phone 20 can perform information processing based on the processed voice and the direction in which the information is generated. Become. That is, as shown in FIG. 5, the color information can be displayed on the display unit 204 at a predetermined position.

It is a figure which shows the structure of the information exchange system of this embodiment. It is a figure for demonstrating the mobile telephone of the transmission side shown in FIG. It is a figure for demonstrating the mobile telephone of the transmission side shown in FIG. It is a figure for demonstrating the mobile telephone of the receiving side shown in FIG. It is a figure for demonstrating the mobile telephone of the receiving side shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1a ... Information exchange system, 10 ... Mobile phone, 20 ... Mobile phone, 101 ... 1st microphone, 102 ... 2nd microphone, 103 ... Direction specific | specification part, 104 ... Audio | voice processing part, 105 ... Information transmission part, 201 ... Information reception , 202 ... color information determination unit, 203 ... display position determination unit, 204 ... display unit, 250 ... color information storage unit.

Claims (3)

At least two or more voice acquisition means arranged at a predetermined interval from each other in order to acquire voice around the transmission side communication terminal;
Direction specifying means for specifying a relative direction of the acquired voice generation source with respect to the transmitting communication terminal based on the voice acquired by the voice acquisition means, and generating direction specifying information indicating the specified direction; ,
Audio processing means for converting the audio in the predetermined band of the audio acquired by the audio acquisition means into processed audio;
Information transmitting means for associating the direction specifying information generated by the direction specifying means with the processed voice processed by the voice processing means and transmitting the information to the receiving communication terminal;
An information exchange system comprising: The voice acquisition means has a unidirectional microphone,
The sound acquisition means are arranged so that axes indicating the directivities of the microphones of the respective sound acquisition means intersect each other.
The information exchange system according to claim 1. Information receiving means for receiving the direction specifying information and processed voice transmitted by the information transmitting means;
Color information determining means for determining color information corresponding to the processed voice received by the information receiving means;
Display position determining means for determining a position for displaying the color information based on the direction specifying information received by the information receiving means;
Display means for displaying the color information at the determined position;
The information exchange system according to claim 1, comprising:

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