JP5650036B2 - Intercom system - Google Patents

Description

  The present invention relates to an intercom system, and more particularly, to an intercom system that can recognize the contents spoken by a call partner not only by voice report sound but also by text information.

  An intercom system in which a resident can respond to a visitor's call using a voice switch in a hands-free manner is widespread (for example, see Patent Document 1). The voice switch receives the voice of the visitor collected by the microphone of the entrance cordless handset and the voice of the resident picked up by the microphone of the living room master, and compares the signal levels of both. The speech path is controlled so as to transmit the voice (see, for example, Patent Document 2). Specifically, if the resident's voice is louder, the call path is sent and the resident's voice is reported from the entrance cordless handset, and if the visitor's voice is louder, the call path is set as the receiving state. The visitor's voice is reported from the parent machine. Thus, the voice transmission direction is automatically switched to enable a call.

JP 2002-101220 A JP 2009-135596 A

However, in a conventional hands-free intercom system using a voice switch, both parties started talking at the same time due to the operation of switching between the transmission / reception state, which is a characteristic of the voice switch, to form either state. In some cases, the transmission / reception state is not smoothly switched, and the beginning of speaking may be interrupted.
Also, because you can hardly hear the other person's voice when you are speaking, you may not know when to stop speaking even if the other person is trying to speak, which may lead to an unnatural conversation. There were cases where smooth conversation was not possible, and there were cases where it was difficult to hear the voice due to noise from a car or the like passing nearby.

  Therefore, in view of such problems, the present invention makes it possible to recognize words spoken by the other party not only as speech but also as text information, making it difficult to hear what the other party spoke when the beginning of the talk is interrupted or due to loud noise. The purpose is to provide an intercom system that can grasp words that are difficult to hear from text information even if the situation occurs.

In order to solve the above-mentioned problem, the invention of claim 1 includes an entrance cordless handset provided with a call button for a visitor to call a resident, a handset microphone for talking with the resident, and a handset speaker; Interphone having a master unit microphone for a resident to respond to a call from an entrance cordless handset and a master unit with a master speaker, and the home master unit having a voice switch for carrying out a hands-free call In the system, there is provided a slave unit character information display unit for displaying character information on the entrance slave unit, and the master unit that acquires the voice collected by the master unit microphone in the living room master unit before passing through the voice switch and converts it into character data Transcription unit, and while the converted character data is Ru provided handset character image generating unit for converting the image data, converts the speech handset microphone is collected in character data obtained before passing the voice switch The handset phone character conversion unit is provided in the entrance handset or living room base unit, the base unit character information display unit for displaying character information on the living room base unit, and the character data converted by the handset phone character conversion unit are converted into image data. A parent machine character image generation unit for conversion, the image data generated by the child machine character image generation unit is displayed on the child machine character information display unit, and the image data generated by the parent machine character image generation unit is It is displayed on the base unit character information display section .
According to this configuration, since the resident's spoken content is displayed as text information on the handset character information display section provided on the entrance cordless handset, it is possible to visit even in situations where the resident's voice is difficult to hear due to ambient noise, etc. The person can grasp the part that could not be heard and can make a smooth call.

In addition, since the content of the visitor's voice is displayed as text information in the main unit character information display section provided in the living room master unit, the resident cannot hear even if the voice of the visitor is difficult to hear due to surrounding noise, etc. You can grasp the part of the call and make a smooth call.

Furthermore, when the voice switch switches between the transmission state where the resident voice is reported from the entrance cordless handset and the reception state where the visitor voice is reported from the occupant base unit, the switching timing starts the resident's transmission. Even if the interrupted voice is reported from the entrance cordless machine, the content that is spoken by the text information including the interrupted voice part is displayed on the entrance cordless handset, so the visitor grasps the interrupted part You can make a smooth call.

Also, when the voice switch switches between the transmission state where the resident voice is reported from the entrance cordless handset and the reception state where the voice of the visitor is reported from the home base unit, the switching timing is the start of the visitor's transmission. Even if a discontinuous voice is reported from the home base unit, the scrambled content including the discontinued voice part is displayed on the home base unit, so the resident can grasp the interrupted part. , You can make a smooth call.

  According to the present invention, by providing the cordless handset character information display section in the entrance cordless handset, the contents struck by the resident are displayed as character information. Even in situations where it is difficult to hear the voice of the visitor, the visitor can grasp the part that could not be heard and can make a smooth call. In addition, by providing a parent machine character information display section in the living room parent machine, the contents spoken by the visitor are displayed as character information, so the voice of the visitor can be heard due to the timing of switching the voice switch, ambient noise, etc. Even in difficult situations, the resident can grasp the parts that could not be heard and can make a smooth call.

It is a circuit block diagram which shows an example of the intercom system which concerns on this invention. It is explanatory drawing which shows the state which displayed character data.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is a circuit block diagram showing an example of an intercom system according to the present invention. Reference numeral 1 is an entrance cordless device for a visitor to call a resident and 2 is an entrance cordless device 1 installed in a living room. It is a living room parent machine for answering calls from. In addition, although both have shown the structure connected by the transmission line L1, it is good also as a wireless communication irrespective of the transmission line L1.

  As shown in FIG. 1, the entrance handset 1 includes a call button 11, a handset microphone 12 for talking, a handset speaker 13, a handset voice processing unit 14 that controls the handset microphone 12 and handset speaker 13, A child camera 15 for capturing a visitor, a video processing unit 16 for processing a video signal captured by the child camera 15 and transmitting it to the living room master unit 2, and a child LCD for displaying character data A machine monitor 17, an image processing unit 18 that controls display on the child machine monitor 17, a child machine IF 19 for communicating with the living room parent machine 2, and a child machine CPU 20 that controls each part of the entrance child machine 1 are provided.

  In addition, the living room master unit 2 includes an operation unit 21 for performing a response operation and various settings for a visitor's call, a master unit microphone 22 for communicating, a master unit speaker 23, a master unit microphone 22, and a master unit speaker 23. In order to display the parent device audio processing unit 24 to be controlled, the parent device monitor 25 composed of an LCD for displaying images captured by the child device camera 15, and the video signal transmitted from the entrance child device 1 on the parent device monitor 25. A video processing unit 26 that performs signal processing, a voice switch 27 that compares the sound level collected by the handset microphone 12 and the sound level collected by the base microphone 22 and selects and transmits one of the voices, and the base microphone 22 In order to communicate with the main unit voice character conversion unit 28 for converting the voice collected by the voice into the character data, the sub unit voice character conversion unit 29 for converting the voice collected by the handset microphone 12 into the character data, and the front door unit 1. of Machine IF 30, and a base unit CPU31 like for controlling each section of the room master station 2.

The base unit voice character conversion unit 28 receives a voice signal collected by the base unit microphone 22 and transmitted to the voice switch 27, and the voice of the resident is converted into character data and output. In addition, a voice signal collected by the handset microphone 12 that is transmitted to the living room base unit 2 and input to the voice switch 27 is input to the handset voice character conversion unit 29, and the voice of the visitor is converted into character data. Is output. Specifically, voice data is extracted from the input voice signal to generate character data. Then, a word is selected from a group of words registered in advance based on continuous character data, further converted into kanji or the like with reference to a dictionary registered in advance, and sentence data is generated and output. .
The master CPU 31 receives the text data converted by the master phone character conversion unit 28 and the slave phone character conversion unit 29, and creates image data to be displayed on the slave monitor 17 or the master monitor 25. Output.

  The operation of the intercom system configured as described above will be described below. When a visitor presses the call button 11 to call a resident, a call signal is transmitted to the room master unit 2 via the slave unit IF 19 and the transmission line L1 under the control of the slave unit CPU 20. In the base unit 2, when the base unit CPU 31 receives this via the base unit IF 30, the base unit audio processing unit 24 is controlled and a ringing tone is reported from the base unit speaker 23. At the same time, the handset camera 15 starts imaging under the control of the handset CPU 20, and the video image of the visitor is processed by the video processing unit 16 and transmitted to the room base unit 2. In the room master 2 that has received this video, a display image is generated by the video processor 26 and displayed on the master monitor 25 under the control of the master CPU 31. That is, the visitor video is displayed on the main unit monitor 25.

  When the resident who recognizes the ringing tone of the room master unit 2 and the visitor image displayed on the base unit monitor 25 responds to the operation unit 21 in order to respond, the base unit CPU 31 causes the entrance unit 1 and the room base unit to respond. A call path between the two is formed, and a call becomes possible. Specifically, the handset microphone 12 and the handset speaker 13 are activated by the control of the handset voice processing unit 14, while the base unit microphone 22 and the base unit speaker 23 are controlled by the control of the base unit voice processing unit 24. An active state is established, and a speech path via the voice switch 27 is formed.

When the resident who has made a response operation in this manner continues to input voice to the parent microphone 22, for example, “Yes, who is?”, The voice of the resident voice-processed by the parent machine voice processing unit 24 is voice switch 27. Is input.
The voice switch 27 compares the voice level from the handset microphone 12 with the voice level from the base set microphone 22, but at this time, the voice is input from the base set microphone 22 without the voice input from the handset microphone 12. As a result, it is determined that the sound level from the parent microphone 22 is high, and control is performed to form the transmission state (form the transmission path) in the transmission state / reception state. As a result, the sound collected by the base unit microphone 22 is transmitted to the entrance slave unit 1 via the voice switch 27 and the base unit IF 30, and is transmitted to the slave unit IF 19 of the entrance slave unit 1 and the slave unit voice processing unit 14. The sound is reported from the machine speaker 13.
At this time, since the receiving state is not formed (the receiving path is not formed), the voice picked up by the handset microphone 12 is not reported by the living room base unit 2.

  At this time, the base unit voice character conversion unit 28 acquires the resident voice before the base unit microphone 22 collects the sound and inputs it to the voice switch 27, and converts it into character data. This character data is output to the master CPU 31 and converted into image data for display on the slave monitor 17 by the master CPU 31. This image data is transmitted to the entrance slave unit 1 via the master unit IF 30 and displayed on the slave unit monitor 17 via the image processing unit 18. As a result, “Yes, where are you” is displayed on the slave monitor 17.

When a visitor who has heard the voice squeezed by the resident next inputs a voice such as “Is Kato. Do you have Taro?” From the handset microphone 12, the voice level is compared by the voice switch 27 as described above. In this case, it is determined that the visitor voice is louder, and control for canceling the formation of the transmission state and forming the reception state is performed. Thus, the sound from the handset microphone 12 is reported from the handset speaker 23.
And the subunit | mobile_unit voice character conversion part 29 acquires the visitor voice before the subunit | mobile_unit microphone 12 picks up and transmits to the living room main | base station 2, and is input into the voice switch 27, and converts it into character data. This character data is converted into image data to be displayed on the master monitor 25 by the master CPU 31 in the same manner as the transmitted voice. This image data is displayed on the master monitor 25 via the video processing unit 26.

FIG. 2 shows a state in which character information is displayed on each of the entrance slave unit 1 and the living room master unit 2, and “Yes, which is?” Is displayed on the slave unit monitor 17. Along with the visitor video, “Is Kato. Are you Taro?” Is displayed. In the room master unit 2, the display of the visitor video is continued and the character data is displayed adjacently.
After the telephone call has been carried out in this way, when the operation unit 21 of the living room main unit 2 is operated to end the predetermined call, the formed communication path is cut off, and a visitor video is displayed on the main unit monitor 25, and The display of the character data on the entrance cordless handset 1 and the living room base phone 2 is completed, and the standby state is restored.

Thus, since the character information is displayed on each monitor together with the sound input from each microphone, the content of the conversation can be grasped more accurately.
Also, the voice switch 27 forms a speech path (sending state, receiving state) with priority given to the larger voice level when there is simultaneous voice input from the slave microphone 12 and the parent microphone 22, The spoken content may not be transmitted to the other party, but the main unit voice character conversion unit 28 and the sub unit voice character conversion unit 29 are provided before the voice switch 27, and thus are interrupted without being affected. It can be notified by converting into character data including the voice part. Therefore, even if the sound reported from the speakers 13 and 23 is difficult to hear due to a head cut or the like, or even in a situation where the surrounding noise is large and difficult to hear, the character information converted from the sound is displayed on the monitor 17, 25, the content of the other person's speech can be grasped by characters, and a smooth conversation can be realized.

In the above embodiment, the room-based master unit 2 is a hands-free master unit including the voice switch 27. However, the character display function of the present application is effective even in a configuration in which a handset is used for response. In this case, There is no interruption in the sound that occurs at the switch timing of the voice switch, but if the surrounding noise is large, it will be difficult to hear the other party's voice, so you can easily understand what the other party has spoken by reading the displayed characters .
Moreover, although the subunit | mobile_unit audio | voice character conversion part 29 is provided in the living room main | base station 2, you may provide in the entrance main unit 1 and may convert into character data, and may transmit to the living room main | base station 2. FIG.
In addition, the intercom system installed in detached dwelling units has been described, but in the intercom system installed in apartment houses, it can be easily applied between the collective entrance units installed at the entrance and the dwelling unit master units installed in each dwelling unit. And can make a smooth call.

  1 .. Entrance cordless handset, 2 .... Room master, 11 .... Call button, 12 .... Slave device microphone, 13 .... Slave device speaker, 17 .... Slave device monitor (slave device character information display section), 18 .. Image processing unit, 20 .. Slave CPU, 21 .. Operation unit, 22 .. Master microphone, 23 .. Master speaker, 25 .. Master monitor (master character information display unit), 27. -Voice switch, 28-Master phone character conversion unit, 29-Slave phone character conversion unit, 31-Master CPU (slave device character image generation unit, parent device character image generation unit).

Claims (1)

An entrance cordless handset provided with a call button for a visitor to call a resident, a handset microphone and a handset speaker for calling with the resident, and the resident responds to a call from the entrance handset An interphone system having a base unit microphone and a base unit with a base unit speaker, wherein the base unit includes a voice switch and performs a hands-free call.
A parent device character information display section for displaying character information on the entrance child device is provided, and a voice collected by the parent device microphone in the living room parent device is acquired before passing through the voice switch and converted into character data. machine transcript unit, and while the converted the character data has been Ru provided handset character image generating unit for converting the image data,
A cordless handset voice character conversion unit that acquires the voice collected by the cordless handset microphone before passing through the voice switch and converts it into character data is provided in the entrance cordless handset or the room base unit. A master unit character information display unit for displaying information, and a master unit character image generation unit for converting the character data converted by the slave unit voice character conversion unit into image data;
The image data generated by the slave unit character image generation unit is displayed on the slave unit character information display unit, and the image data generated by the master unit character image generation unit is displayed on the master unit character information display unit. Interphone system characterized by being made .

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